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[PATCH AUTOSEL 6.1 01/13] ACPICA: fix acpi operand cache leak in dswstate.c

by Sasha Levin

From: Seunghun Han <kkamagui(a)gmail.com> [ Upstream commit 156fd20a41e776bbf334bd5e45c4f78dfc90ce1c ] ACPICA commit 987a3b5cf7175916e2a4b6ea5b8e70f830dfe732 I found an ACPI cache leak in ACPI early termination and boot continuing case. When early termination occurs due to malicious ACPI table, Linux kernel terminates ACPI function and continues to boot process. While kernel terminates ACPI function, kmem_cache_destroy() reports Acpi-Operand cache leak. Boot log of ACPI operand cache leak is as follows: >[ 0.585957] ACPI: Added _OSI(Module Device) >[ 0.587218] ACPI: Added _OSI(Processor Device) >[ 0.588530] ACPI: Added _OSI(3.0 _SCP Extensions) >[ 0.589790] ACPI: Added _OSI(Processor Aggregator Device) >[ 0.591534] ACPI Error: Illegal I/O port address/length above 64K: C806E00000004002/0x2 (20170303/hwvalid-155) >[ 0.594351] ACPI Exception: AE_LIMIT, Unable to initialize fixed events (20170303/evevent-88) >[ 0.597858] ACPI: Unable to start the ACPI Interpreter >[ 0.599162] ACPI Error: Could not remove SCI handler (20170303/evmisc-281) >[ 0.601836] kmem_cache_destroy Acpi-Operand: Slab cache still has objects >[ 0.603556] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.12.0-rc5 #26 >[ 0.605159] Hardware name: innotek gmb_h virtual_box/virtual_box, BIOS virtual_box 12/01/2006 >[ 0.609177] Call Trace: >[ 0.610063] ? dump_stack+0x5c/0x81 >[ 0.611118] ? kmem_cache_destroy+0x1aa/0x1c0 >[ 0.612632] ? acpi_sleep_proc_init+0x27/0x27 >[ 0.613906] ? acpi_os_delete_cache+0xa/0x10 >[ 0.617986] ? acpi_ut_delete_caches+0x3f/0x7b >[ 0.619293] ? acpi_terminate+0xa/0x14 >[ 0.620394] ? acpi_init+0x2af/0x34f >[ 0.621616] ? __class_create+0x4c/0x80 >[ 0.623412] ? video_setup+0x7f/0x7f >[ 0.624585] ? acpi_sleep_proc_init+0x27/0x27 >[ 0.625861] ? do_one_initcall+0x4e/0x1a0 >[ 0.627513] ? kernel_init_freeable+0x19e/0x21f >[ 0.628972] ? rest_init+0x80/0x80 >[ 0.630043] ? kernel_init+0xa/0x100 >[ 0.631084] ? ret_from_fork+0x25/0x30 >[ 0.633343] vgaarb: loaded >[ 0.635036] EDAC MC: Ver: 3.0.0 >[ 0.638601] PCI: Probing PCI hardware >[ 0.639833] PCI host bridge to bus 0000:00 >[ 0.641031] pci_bus 0000:00: root bus resource [io 0x0000-0xffff] > ... Continue to boot and log is omitted ... I analyzed this memory leak in detail and found acpi_ds_obj_stack_pop_and_ delete() function miscalculated the top of the stack. acpi_ds_obj_stack_push() function uses walk_state->operand_index for start position of the top, but acpi_ds_obj_stack_pop_and_delete() function considers index 0 for it. Therefore, this causes acpi operand memory leak. This cache leak causes a security threat because an old kernel (<= 4.9) shows memory locations of kernel functions in stack dump. Some malicious users could use this information to neutralize kernel ASLR. I made a patch to fix ACPI operand cache leak. Link: https://github.com/acpica/acpica/commit/987a3b5c Signed-off-by: Seunghun Han <kkamagui(a)gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki(a)intel.com> Link: https://patch.msgid.link/4999480.31r3eYUQgx@rjwysocki.net Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- **YES** This commit should be backported to stable kernel trees based on the following analysis: ## Analysis of the Commit **1. Bug Fix Nature**: This commit fixes a clear memory leak bug in the ACPICA subsystem. The issue occurs when `acpi_ds_create_operands()` encounters an error during operand creation and needs to clean up allocated operands. **2. Root Cause**: The core issue is a mismatch between how operands are pushed and popped from the stack: - `acpi_ds_obj_stack_push()` uses `walk_state->operand_index` to track the current position - `acpi_ds_obj_stack_pop_and_delete()` incorrectly assumes operands start at index 0 - This causes incomplete cleanup when errors occur, leading to memory leaks **3. Code Analysis**: The fix correctly addresses the issue by: - Tracking the original operand count (`prev_num_operands`) - Calculating the correct number of operands to clean up (`new_num_operands`) - Setting `walk_state->num_operands = i` before cleanup to ensure proper indexing - Restoring the original operand count after cleanup **4. Security Implications**: The commit message explicitly mentions this is a security issue - the memory leak can expose kernel function addresses in older kernels (≤4.9), potentially defeating ASLR. This elevates the importance beyond a simple memory leak. **5. Pattern Consistency**: This follows the exact same pattern as other ACPICA operand cache leak fixes that were successfully backported (commits `97f3c0a4b057`, `2915f16bdce2`, etc.), all authored by the same developer addressing similar issues. **6. Stability Characteristics**: - **Small and contained**: Only 8 lines of actual logic changes - **Clear error path**: Only affects cleanup during error conditions - **No behavioral changes**: No impact on normal operation - **Low regression risk**: Only modifies error handling paths **7. Backport Suitability Criteria**: - ✅ Fixes important bug affecting users (memory leak) - ✅ Small, contained fix with minimal risk - ✅ No architectural changes - ✅ Addresses security concern (ASLR bypass potential) - ✅ Follows established patterns for ACPICA fixes - ✅ Critical kernel subsystem (ACPI) **8. Historical Precedent**: The similar commits in the reference examples (Similar Commits #1, #2, #3) all have "Backport Status: YES" and address nearly identical ACPICA operand cache leak issues with similar fixes and commit message patterns. This commit meets all criteria for stable tree backporting: it's an important bugfix, has minimal regression risk, affects a critical subsystem, and follows established patterns for similar fixes that were previously backported. drivers/acpi/acpica/dsutils.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/acpi/acpica/dsutils.c b/drivers/acpi/acpica/dsutils.c index fb9ed5e1da89d..2bdae8a25e084 100644 --- a/drivers/acpi/acpica/dsutils.c +++ b/drivers/acpi/acpica/dsutils.c @@ -668,6 +668,8 @@ acpi_ds_create_operands(struct acpi_walk_state *walk_state, union acpi_parse_object *arguments[ACPI_OBJ_NUM_OPERANDS]; u32 arg_count = 0; u32 index = walk_state->num_operands; + u32 prev_num_operands = walk_state->num_operands; + u32 new_num_operands; u32 i; ACPI_FUNCTION_TRACE_PTR(ds_create_operands, first_arg); @@ -696,6 +698,7 @@ acpi_ds_create_operands(struct acpi_walk_state *walk_state, /* Create the interpreter arguments, in reverse order */ + new_num_operands = index; index--; for (i = 0; i < arg_count; i++) { arg = arguments[index]; @@ -720,7 +723,11 @@ acpi_ds_create_operands(struct acpi_walk_state *walk_state, * pop everything off of the operand stack and delete those * objects */ - acpi_ds_obj_stack_pop_and_delete(arg_count, walk_state); + walk_state->num_operands = i; + acpi_ds_obj_stack_pop_and_delete(new_num_operands, walk_state); + + /* Restore operand count */ + walk_state->num_operands = prev_num_operands; ACPI_EXCEPTION((AE_INFO, status, "While creating Arg %u", index)); return_ACPI_STATUS(status); -- 2.39.5

3 months, 3 weeks

1
12
0 0

[PATCH AUTOSEL 6.6 01/18] ACPICA: fix acpi operand cache leak in dswstate.c

by Sasha Levin

From: Seunghun Han <kkamagui(a)gmail.com> [ Upstream commit 156fd20a41e776bbf334bd5e45c4f78dfc90ce1c ] ACPICA commit 987a3b5cf7175916e2a4b6ea5b8e70f830dfe732 I found an ACPI cache leak in ACPI early termination and boot continuing case. When early termination occurs due to malicious ACPI table, Linux kernel terminates ACPI function and continues to boot process. While kernel terminates ACPI function, kmem_cache_destroy() reports Acpi-Operand cache leak. Boot log of ACPI operand cache leak is as follows: >[ 0.585957] ACPI: Added _OSI(Module Device) >[ 0.587218] ACPI: Added _OSI(Processor Device) >[ 0.588530] ACPI: Added _OSI(3.0 _SCP Extensions) >[ 0.589790] ACPI: Added _OSI(Processor Aggregator Device) >[ 0.591534] ACPI Error: Illegal I/O port address/length above 64K: C806E00000004002/0x2 (20170303/hwvalid-155) >[ 0.594351] ACPI Exception: AE_LIMIT, Unable to initialize fixed events (20170303/evevent-88) >[ 0.597858] ACPI: Unable to start the ACPI Interpreter >[ 0.599162] ACPI Error: Could not remove SCI handler (20170303/evmisc-281) >[ 0.601836] kmem_cache_destroy Acpi-Operand: Slab cache still has objects >[ 0.603556] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.12.0-rc5 #26 >[ 0.605159] Hardware name: innotek gmb_h virtual_box/virtual_box, BIOS virtual_box 12/01/2006 >[ 0.609177] Call Trace: >[ 0.610063] ? dump_stack+0x5c/0x81 >[ 0.611118] ? kmem_cache_destroy+0x1aa/0x1c0 >[ 0.612632] ? acpi_sleep_proc_init+0x27/0x27 >[ 0.613906] ? acpi_os_delete_cache+0xa/0x10 >[ 0.617986] ? acpi_ut_delete_caches+0x3f/0x7b >[ 0.619293] ? acpi_terminate+0xa/0x14 >[ 0.620394] ? acpi_init+0x2af/0x34f >[ 0.621616] ? __class_create+0x4c/0x80 >[ 0.623412] ? video_setup+0x7f/0x7f >[ 0.624585] ? acpi_sleep_proc_init+0x27/0x27 >[ 0.625861] ? do_one_initcall+0x4e/0x1a0 >[ 0.627513] ? kernel_init_freeable+0x19e/0x21f >[ 0.628972] ? rest_init+0x80/0x80 >[ 0.630043] ? kernel_init+0xa/0x100 >[ 0.631084] ? ret_from_fork+0x25/0x30 >[ 0.633343] vgaarb: loaded >[ 0.635036] EDAC MC: Ver: 3.0.0 >[ 0.638601] PCI: Probing PCI hardware >[ 0.639833] PCI host bridge to bus 0000:00 >[ 0.641031] pci_bus 0000:00: root bus resource [io 0x0000-0xffff] > ... Continue to boot and log is omitted ... I analyzed this memory leak in detail and found acpi_ds_obj_stack_pop_and_ delete() function miscalculated the top of the stack. acpi_ds_obj_stack_push() function uses walk_state->operand_index for start position of the top, but acpi_ds_obj_stack_pop_and_delete() function considers index 0 for it. Therefore, this causes acpi operand memory leak. This cache leak causes a security threat because an old kernel (<= 4.9) shows memory locations of kernel functions in stack dump. Some malicious users could use this information to neutralize kernel ASLR. I made a patch to fix ACPI operand cache leak. Link: https://github.com/acpica/acpica/commit/987a3b5c Signed-off-by: Seunghun Han <kkamagui(a)gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki(a)intel.com> Link: https://patch.msgid.link/4999480.31r3eYUQgx@rjwysocki.net Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- **YES** This commit should be backported to stable kernel trees based on the following analysis: ## Analysis of the Commit **1. Bug Fix Nature**: This commit fixes a clear memory leak bug in the ACPICA subsystem. The issue occurs when `acpi_ds_create_operands()` encounters an error during operand creation and needs to clean up allocated operands. **2. Root Cause**: The core issue is a mismatch between how operands are pushed and popped from the stack: - `acpi_ds_obj_stack_push()` uses `walk_state->operand_index` to track the current position - `acpi_ds_obj_stack_pop_and_delete()` incorrectly assumes operands start at index 0 - This causes incomplete cleanup when errors occur, leading to memory leaks **3. Code Analysis**: The fix correctly addresses the issue by: - Tracking the original operand count (`prev_num_operands`) - Calculating the correct number of operands to clean up (`new_num_operands`) - Setting `walk_state->num_operands = i` before cleanup to ensure proper indexing - Restoring the original operand count after cleanup **4. Security Implications**: The commit message explicitly mentions this is a security issue - the memory leak can expose kernel function addresses in older kernels (≤4.9), potentially defeating ASLR. This elevates the importance beyond a simple memory leak. **5. Pattern Consistency**: This follows the exact same pattern as other ACPICA operand cache leak fixes that were successfully backported (commits `97f3c0a4b057`, `2915f16bdce2`, etc.), all authored by the same developer addressing similar issues. **6. Stability Characteristics**: - **Small and contained**: Only 8 lines of actual logic changes - **Clear error path**: Only affects cleanup during error conditions - **No behavioral changes**: No impact on normal operation - **Low regression risk**: Only modifies error handling paths **7. Backport Suitability Criteria**: - ✅ Fixes important bug affecting users (memory leak) - ✅ Small, contained fix with minimal risk - ✅ No architectural changes - ✅ Addresses security concern (ASLR bypass potential) - ✅ Follows established patterns for ACPICA fixes - ✅ Critical kernel subsystem (ACPI) **8. Historical Precedent**: The similar commits in the reference examples (Similar Commits #1, #2, #3) all have "Backport Status: YES" and address nearly identical ACPICA operand cache leak issues with similar fixes and commit message patterns. This commit meets all criteria for stable tree backporting: it's an important bugfix, has minimal regression risk, affects a critical subsystem, and follows established patterns for similar fixes that were previously backported. drivers/acpi/acpica/dsutils.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/acpi/acpica/dsutils.c b/drivers/acpi/acpica/dsutils.c index fb9ed5e1da89d..2bdae8a25e084 100644 --- a/drivers/acpi/acpica/dsutils.c +++ b/drivers/acpi/acpica/dsutils.c @@ -668,6 +668,8 @@ acpi_ds_create_operands(struct acpi_walk_state *walk_state, union acpi_parse_object *arguments[ACPI_OBJ_NUM_OPERANDS]; u32 arg_count = 0; u32 index = walk_state->num_operands; + u32 prev_num_operands = walk_state->num_operands; + u32 new_num_operands; u32 i; ACPI_FUNCTION_TRACE_PTR(ds_create_operands, first_arg); @@ -696,6 +698,7 @@ acpi_ds_create_operands(struct acpi_walk_state *walk_state, /* Create the interpreter arguments, in reverse order */ + new_num_operands = index; index--; for (i = 0; i < arg_count; i++) { arg = arguments[index]; @@ -720,7 +723,11 @@ acpi_ds_create_operands(struct acpi_walk_state *walk_state, * pop everything off of the operand stack and delete those * objects */ - acpi_ds_obj_stack_pop_and_delete(arg_count, walk_state); + walk_state->num_operands = i; + acpi_ds_obj_stack_pop_and_delete(new_num_operands, walk_state); + + /* Restore operand count */ + walk_state->num_operands = prev_num_operands; ACPI_EXCEPTION((AE_INFO, status, "While creating Arg %u", index)); return_ACPI_STATUS(status); -- 2.39.5

3 months, 3 weeks

1
17
0 0

[PATCH AUTOSEL 6.12 01/26] ACPICA: fix acpi operand cache leak in dswstate.c

by Sasha Levin

From: Seunghun Han <kkamagui(a)gmail.com> [ Upstream commit 156fd20a41e776bbf334bd5e45c4f78dfc90ce1c ] ACPICA commit 987a3b5cf7175916e2a4b6ea5b8e70f830dfe732 I found an ACPI cache leak in ACPI early termination and boot continuing case. When early termination occurs due to malicious ACPI table, Linux kernel terminates ACPI function and continues to boot process. While kernel terminates ACPI function, kmem_cache_destroy() reports Acpi-Operand cache leak. Boot log of ACPI operand cache leak is as follows: >[ 0.585957] ACPI: Added _OSI(Module Device) >[ 0.587218] ACPI: Added _OSI(Processor Device) >[ 0.588530] ACPI: Added _OSI(3.0 _SCP Extensions) >[ 0.589790] ACPI: Added _OSI(Processor Aggregator Device) >[ 0.591534] ACPI Error: Illegal I/O port address/length above 64K: C806E00000004002/0x2 (20170303/hwvalid-155) >[ 0.594351] ACPI Exception: AE_LIMIT, Unable to initialize fixed events (20170303/evevent-88) >[ 0.597858] ACPI: Unable to start the ACPI Interpreter >[ 0.599162] ACPI Error: Could not remove SCI handler (20170303/evmisc-281) >[ 0.601836] kmem_cache_destroy Acpi-Operand: Slab cache still has objects >[ 0.603556] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.12.0-rc5 #26 >[ 0.605159] Hardware name: innotek gmb_h virtual_box/virtual_box, BIOS virtual_box 12/01/2006 >[ 0.609177] Call Trace: >[ 0.610063] ? dump_stack+0x5c/0x81 >[ 0.611118] ? kmem_cache_destroy+0x1aa/0x1c0 >[ 0.612632] ? acpi_sleep_proc_init+0x27/0x27 >[ 0.613906] ? acpi_os_delete_cache+0xa/0x10 >[ 0.617986] ? acpi_ut_delete_caches+0x3f/0x7b >[ 0.619293] ? acpi_terminate+0xa/0x14 >[ 0.620394] ? acpi_init+0x2af/0x34f >[ 0.621616] ? __class_create+0x4c/0x80 >[ 0.623412] ? video_setup+0x7f/0x7f >[ 0.624585] ? acpi_sleep_proc_init+0x27/0x27 >[ 0.625861] ? do_one_initcall+0x4e/0x1a0 >[ 0.627513] ? kernel_init_freeable+0x19e/0x21f >[ 0.628972] ? rest_init+0x80/0x80 >[ 0.630043] ? kernel_init+0xa/0x100 >[ 0.631084] ? ret_from_fork+0x25/0x30 >[ 0.633343] vgaarb: loaded >[ 0.635036] EDAC MC: Ver: 3.0.0 >[ 0.638601] PCI: Probing PCI hardware >[ 0.639833] PCI host bridge to bus 0000:00 >[ 0.641031] pci_bus 0000:00: root bus resource [io 0x0000-0xffff] > ... Continue to boot and log is omitted ... I analyzed this memory leak in detail and found acpi_ds_obj_stack_pop_and_ delete() function miscalculated the top of the stack. acpi_ds_obj_stack_push() function uses walk_state->operand_index for start position of the top, but acpi_ds_obj_stack_pop_and_delete() function considers index 0 for it. Therefore, this causes acpi operand memory leak. This cache leak causes a security threat because an old kernel (<= 4.9) shows memory locations of kernel functions in stack dump. Some malicious users could use this information to neutralize kernel ASLR. I made a patch to fix ACPI operand cache leak. Link: https://github.com/acpica/acpica/commit/987a3b5c Signed-off-by: Seunghun Han <kkamagui(a)gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki(a)intel.com> Link: https://patch.msgid.link/4999480.31r3eYUQgx@rjwysocki.net Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- **YES** This commit should be backported to stable kernel trees based on the following analysis: ## Analysis of the Commit **1. Bug Fix Nature**: This commit fixes a clear memory leak bug in the ACPICA subsystem. The issue occurs when `acpi_ds_create_operands()` encounters an error during operand creation and needs to clean up allocated operands. **2. Root Cause**: The core issue is a mismatch between how operands are pushed and popped from the stack: - `acpi_ds_obj_stack_push()` uses `walk_state->operand_index` to track the current position - `acpi_ds_obj_stack_pop_and_delete()` incorrectly assumes operands start at index 0 - This causes incomplete cleanup when errors occur, leading to memory leaks **3. Code Analysis**: The fix correctly addresses the issue by: - Tracking the original operand count (`prev_num_operands`) - Calculating the correct number of operands to clean up (`new_num_operands`) - Setting `walk_state->num_operands = i` before cleanup to ensure proper indexing - Restoring the original operand count after cleanup **4. Security Implications**: The commit message explicitly mentions this is a security issue - the memory leak can expose kernel function addresses in older kernels (≤4.9), potentially defeating ASLR. This elevates the importance beyond a simple memory leak. **5. Pattern Consistency**: This follows the exact same pattern as other ACPICA operand cache leak fixes that were successfully backported (commits `97f3c0a4b057`, `2915f16bdce2`, etc.), all authored by the same developer addressing similar issues. **6. Stability Characteristics**: - **Small and contained**: Only 8 lines of actual logic changes - **Clear error path**: Only affects cleanup during error conditions - **No behavioral changes**: No impact on normal operation - **Low regression risk**: Only modifies error handling paths **7. Backport Suitability Criteria**: - ✅ Fixes important bug affecting users (memory leak) - ✅ Small, contained fix with minimal risk - ✅ No architectural changes - ✅ Addresses security concern (ASLR bypass potential) - ✅ Follows established patterns for ACPICA fixes - ✅ Critical kernel subsystem (ACPI) **8. Historical Precedent**: The similar commits in the reference examples (Similar Commits #1, #2, #3) all have "Backport Status: YES" and address nearly identical ACPICA operand cache leak issues with similar fixes and commit message patterns. This commit meets all criteria for stable tree backporting: it's an important bugfix, has minimal regression risk, affects a critical subsystem, and follows established patterns for similar fixes that were previously backported. drivers/acpi/acpica/dsutils.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/acpi/acpica/dsutils.c b/drivers/acpi/acpica/dsutils.c index fb9ed5e1da89d..2bdae8a25e084 100644 --- a/drivers/acpi/acpica/dsutils.c +++ b/drivers/acpi/acpica/dsutils.c @@ -668,6 +668,8 @@ acpi_ds_create_operands(struct acpi_walk_state *walk_state, union acpi_parse_object *arguments[ACPI_OBJ_NUM_OPERANDS]; u32 arg_count = 0; u32 index = walk_state->num_operands; + u32 prev_num_operands = walk_state->num_operands; + u32 new_num_operands; u32 i; ACPI_FUNCTION_TRACE_PTR(ds_create_operands, first_arg); @@ -696,6 +698,7 @@ acpi_ds_create_operands(struct acpi_walk_state *walk_state, /* Create the interpreter arguments, in reverse order */ + new_num_operands = index; index--; for (i = 0; i < arg_count; i++) { arg = arguments[index]; @@ -720,7 +723,11 @@ acpi_ds_create_operands(struct acpi_walk_state *walk_state, * pop everything off of the operand stack and delete those * objects */ - acpi_ds_obj_stack_pop_and_delete(arg_count, walk_state); + walk_state->num_operands = i; + acpi_ds_obj_stack_pop_and_delete(new_num_operands, walk_state); + + /* Restore operand count */ + walk_state->num_operands = prev_num_operands; ACPI_EXCEPTION((AE_INFO, status, "While creating Arg %u", index)); return_ACPI_STATUS(status); -- 2.39.5

3 months, 3 weeks

1
25
0 0

[PATCH AUTOSEL 6.14 01/28] ACPICA: fix acpi operand cache leak in dswstate.c

by Sasha Levin

From: Seunghun Han <kkamagui(a)gmail.com> [ Upstream commit 156fd20a41e776bbf334bd5e45c4f78dfc90ce1c ] ACPICA commit 987a3b5cf7175916e2a4b6ea5b8e70f830dfe732 I found an ACPI cache leak in ACPI early termination and boot continuing case. When early termination occurs due to malicious ACPI table, Linux kernel terminates ACPI function and continues to boot process. While kernel terminates ACPI function, kmem_cache_destroy() reports Acpi-Operand cache leak. Boot log of ACPI operand cache leak is as follows: >[ 0.585957] ACPI: Added _OSI(Module Device) >[ 0.587218] ACPI: Added _OSI(Processor Device) >[ 0.588530] ACPI: Added _OSI(3.0 _SCP Extensions) >[ 0.589790] ACPI: Added _OSI(Processor Aggregator Device) >[ 0.591534] ACPI Error: Illegal I/O port address/length above 64K: C806E00000004002/0x2 (20170303/hwvalid-155) >[ 0.594351] ACPI Exception: AE_LIMIT, Unable to initialize fixed events (20170303/evevent-88) >[ 0.597858] ACPI: Unable to start the ACPI Interpreter >[ 0.599162] ACPI Error: Could not remove SCI handler (20170303/evmisc-281) >[ 0.601836] kmem_cache_destroy Acpi-Operand: Slab cache still has objects >[ 0.603556] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.12.0-rc5 #26 >[ 0.605159] Hardware name: innotek gmb_h virtual_box/virtual_box, BIOS virtual_box 12/01/2006 >[ 0.609177] Call Trace: >[ 0.610063] ? dump_stack+0x5c/0x81 >[ 0.611118] ? kmem_cache_destroy+0x1aa/0x1c0 >[ 0.612632] ? acpi_sleep_proc_init+0x27/0x27 >[ 0.613906] ? acpi_os_delete_cache+0xa/0x10 >[ 0.617986] ? acpi_ut_delete_caches+0x3f/0x7b >[ 0.619293] ? acpi_terminate+0xa/0x14 >[ 0.620394] ? acpi_init+0x2af/0x34f >[ 0.621616] ? __class_create+0x4c/0x80 >[ 0.623412] ? video_setup+0x7f/0x7f >[ 0.624585] ? acpi_sleep_proc_init+0x27/0x27 >[ 0.625861] ? do_one_initcall+0x4e/0x1a0 >[ 0.627513] ? kernel_init_freeable+0x19e/0x21f >[ 0.628972] ? rest_init+0x80/0x80 >[ 0.630043] ? kernel_init+0xa/0x100 >[ 0.631084] ? ret_from_fork+0x25/0x30 >[ 0.633343] vgaarb: loaded >[ 0.635036] EDAC MC: Ver: 3.0.0 >[ 0.638601] PCI: Probing PCI hardware >[ 0.639833] PCI host bridge to bus 0000:00 >[ 0.641031] pci_bus 0000:00: root bus resource [io 0x0000-0xffff] > ... Continue to boot and log is omitted ... I analyzed this memory leak in detail and found acpi_ds_obj_stack_pop_and_ delete() function miscalculated the top of the stack. acpi_ds_obj_stack_push() function uses walk_state->operand_index for start position of the top, but acpi_ds_obj_stack_pop_and_delete() function considers index 0 for it. Therefore, this causes acpi operand memory leak. This cache leak causes a security threat because an old kernel (<= 4.9) shows memory locations of kernel functions in stack dump. Some malicious users could use this information to neutralize kernel ASLR. I made a patch to fix ACPI operand cache leak. Link: https://github.com/acpica/acpica/commit/987a3b5c Signed-off-by: Seunghun Han <kkamagui(a)gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki(a)intel.com> Link: https://patch.msgid.link/4999480.31r3eYUQgx@rjwysocki.net Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- **YES** This commit should be backported to stable kernel trees based on the following analysis: ## Analysis of the Commit **1. Bug Fix Nature**: This commit fixes a clear memory leak bug in the ACPICA subsystem. The issue occurs when `acpi_ds_create_operands()` encounters an error during operand creation and needs to clean up allocated operands. **2. Root Cause**: The core issue is a mismatch between how operands are pushed and popped from the stack: - `acpi_ds_obj_stack_push()` uses `walk_state->operand_index` to track the current position - `acpi_ds_obj_stack_pop_and_delete()` incorrectly assumes operands start at index 0 - This causes incomplete cleanup when errors occur, leading to memory leaks **3. Code Analysis**: The fix correctly addresses the issue by: - Tracking the original operand count (`prev_num_operands`) - Calculating the correct number of operands to clean up (`new_num_operands`) - Setting `walk_state->num_operands = i` before cleanup to ensure proper indexing - Restoring the original operand count after cleanup **4. Security Implications**: The commit message explicitly mentions this is a security issue - the memory leak can expose kernel function addresses in older kernels (≤4.9), potentially defeating ASLR. This elevates the importance beyond a simple memory leak. **5. Pattern Consistency**: This follows the exact same pattern as other ACPICA operand cache leak fixes that were successfully backported (commits `97f3c0a4b057`, `2915f16bdce2`, etc.), all authored by the same developer addressing similar issues. **6. Stability Characteristics**: - **Small and contained**: Only 8 lines of actual logic changes - **Clear error path**: Only affects cleanup during error conditions - **No behavioral changes**: No impact on normal operation - **Low regression risk**: Only modifies error handling paths **7. Backport Suitability Criteria**: - ✅ Fixes important bug affecting users (memory leak) - ✅ Small, contained fix with minimal risk - ✅ No architectural changes - ✅ Addresses security concern (ASLR bypass potential) - ✅ Follows established patterns for ACPICA fixes - ✅ Critical kernel subsystem (ACPI) **8. Historical Precedent**: The similar commits in the reference examples (Similar Commits #1, #2, #3) all have "Backport Status: YES" and address nearly identical ACPICA operand cache leak issues with similar fixes and commit message patterns. This commit meets all criteria for stable tree backporting: it's an important bugfix, has minimal regression risk, affects a critical subsystem, and follows established patterns for similar fixes that were previously backported. drivers/acpi/acpica/dsutils.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/acpi/acpica/dsutils.c b/drivers/acpi/acpica/dsutils.c index fb9ed5e1da89d..2bdae8a25e084 100644 --- a/drivers/acpi/acpica/dsutils.c +++ b/drivers/acpi/acpica/dsutils.c @@ -668,6 +668,8 @@ acpi_ds_create_operands(struct acpi_walk_state *walk_state, union acpi_parse_object *arguments[ACPI_OBJ_NUM_OPERANDS]; u32 arg_count = 0; u32 index = walk_state->num_operands; + u32 prev_num_operands = walk_state->num_operands; + u32 new_num_operands; u32 i; ACPI_FUNCTION_TRACE_PTR(ds_create_operands, first_arg); @@ -696,6 +698,7 @@ acpi_ds_create_operands(struct acpi_walk_state *walk_state, /* Create the interpreter arguments, in reverse order */ + new_num_operands = index; index--; for (i = 0; i < arg_count; i++) { arg = arguments[index]; @@ -720,7 +723,11 @@ acpi_ds_create_operands(struct acpi_walk_state *walk_state, * pop everything off of the operand stack and delete those * objects */ - acpi_ds_obj_stack_pop_and_delete(arg_count, walk_state); + walk_state->num_operands = i; + acpi_ds_obj_stack_pop_and_delete(new_num_operands, walk_state); + + /* Restore operand count */ + walk_state->num_operands = prev_num_operands; ACPI_EXCEPTION((AE_INFO, status, "While creating Arg %u", index)); return_ACPI_STATUS(status); -- 2.39.5

3 months, 3 weeks

1
27
0 0

[PATCH AUTOSEL 6.15 01/30] ACPICA: fix acpi operand cache leak in dswstate.c

by Sasha Levin

From: Seunghun Han <kkamagui(a)gmail.com> [ Upstream commit 156fd20a41e776bbf334bd5e45c4f78dfc90ce1c ] ACPICA commit 987a3b5cf7175916e2a4b6ea5b8e70f830dfe732 I found an ACPI cache leak in ACPI early termination and boot continuing case. When early termination occurs due to malicious ACPI table, Linux kernel terminates ACPI function and continues to boot process. While kernel terminates ACPI function, kmem_cache_destroy() reports Acpi-Operand cache leak. Boot log of ACPI operand cache leak is as follows: >[ 0.585957] ACPI: Added _OSI(Module Device) >[ 0.587218] ACPI: Added _OSI(Processor Device) >[ 0.588530] ACPI: Added _OSI(3.0 _SCP Extensions) >[ 0.589790] ACPI: Added _OSI(Processor Aggregator Device) >[ 0.591534] ACPI Error: Illegal I/O port address/length above 64K: C806E00000004002/0x2 (20170303/hwvalid-155) >[ 0.594351] ACPI Exception: AE_LIMIT, Unable to initialize fixed events (20170303/evevent-88) >[ 0.597858] ACPI: Unable to start the ACPI Interpreter >[ 0.599162] ACPI Error: Could not remove SCI handler (20170303/evmisc-281) >[ 0.601836] kmem_cache_destroy Acpi-Operand: Slab cache still has objects >[ 0.603556] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.12.0-rc5 #26 >[ 0.605159] Hardware name: innotek gmb_h virtual_box/virtual_box, BIOS virtual_box 12/01/2006 >[ 0.609177] Call Trace: >[ 0.610063] ? dump_stack+0x5c/0x81 >[ 0.611118] ? kmem_cache_destroy+0x1aa/0x1c0 >[ 0.612632] ? acpi_sleep_proc_init+0x27/0x27 >[ 0.613906] ? acpi_os_delete_cache+0xa/0x10 >[ 0.617986] ? acpi_ut_delete_caches+0x3f/0x7b >[ 0.619293] ? acpi_terminate+0xa/0x14 >[ 0.620394] ? acpi_init+0x2af/0x34f >[ 0.621616] ? __class_create+0x4c/0x80 >[ 0.623412] ? video_setup+0x7f/0x7f >[ 0.624585] ? acpi_sleep_proc_init+0x27/0x27 >[ 0.625861] ? do_one_initcall+0x4e/0x1a0 >[ 0.627513] ? kernel_init_freeable+0x19e/0x21f >[ 0.628972] ? rest_init+0x80/0x80 >[ 0.630043] ? kernel_init+0xa/0x100 >[ 0.631084] ? ret_from_fork+0x25/0x30 >[ 0.633343] vgaarb: loaded >[ 0.635036] EDAC MC: Ver: 3.0.0 >[ 0.638601] PCI: Probing PCI hardware >[ 0.639833] PCI host bridge to bus 0000:00 >[ 0.641031] pci_bus 0000:00: root bus resource [io 0x0000-0xffff] > ... Continue to boot and log is omitted ... I analyzed this memory leak in detail and found acpi_ds_obj_stack_pop_and_ delete() function miscalculated the top of the stack. acpi_ds_obj_stack_push() function uses walk_state->operand_index for start position of the top, but acpi_ds_obj_stack_pop_and_delete() function considers index 0 for it. Therefore, this causes acpi operand memory leak. This cache leak causes a security threat because an old kernel (<= 4.9) shows memory locations of kernel functions in stack dump. Some malicious users could use this information to neutralize kernel ASLR. I made a patch to fix ACPI operand cache leak. Link: https://github.com/acpica/acpica/commit/987a3b5c Signed-off-by: Seunghun Han <kkamagui(a)gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki(a)intel.com> Link: https://patch.msgid.link/4999480.31r3eYUQgx@rjwysocki.net Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- **YES** This commit should be backported to stable kernel trees based on the following analysis: ## Analysis of the Commit **1. Bug Fix Nature**: This commit fixes a clear memory leak bug in the ACPICA subsystem. The issue occurs when `acpi_ds_create_operands()` encounters an error during operand creation and needs to clean up allocated operands. **2. Root Cause**: The core issue is a mismatch between how operands are pushed and popped from the stack: - `acpi_ds_obj_stack_push()` uses `walk_state->operand_index` to track the current position - `acpi_ds_obj_stack_pop_and_delete()` incorrectly assumes operands start at index 0 - This causes incomplete cleanup when errors occur, leading to memory leaks **3. Code Analysis**: The fix correctly addresses the issue by: - Tracking the original operand count (`prev_num_operands`) - Calculating the correct number of operands to clean up (`new_num_operands`) - Setting `walk_state->num_operands = i` before cleanup to ensure proper indexing - Restoring the original operand count after cleanup **4. Security Implications**: The commit message explicitly mentions this is a security issue - the memory leak can expose kernel function addresses in older kernels (≤4.9), potentially defeating ASLR. This elevates the importance beyond a simple memory leak. **5. Pattern Consistency**: This follows the exact same pattern as other ACPICA operand cache leak fixes that were successfully backported (commits `97f3c0a4b057`, `2915f16bdce2`, etc.), all authored by the same developer addressing similar issues. **6. Stability Characteristics**: - **Small and contained**: Only 8 lines of actual logic changes - **Clear error path**: Only affects cleanup during error conditions - **No behavioral changes**: No impact on normal operation - **Low regression risk**: Only modifies error handling paths **7. Backport Suitability Criteria**: - ✅ Fixes important bug affecting users (memory leak) - ✅ Small, contained fix with minimal risk - ✅ No architectural changes - ✅ Addresses security concern (ASLR bypass potential) - ✅ Follows established patterns for ACPICA fixes - ✅ Critical kernel subsystem (ACPI) **8. Historical Precedent**: The similar commits in the reference examples (Similar Commits #1, #2, #3) all have "Backport Status: YES" and address nearly identical ACPICA operand cache leak issues with similar fixes and commit message patterns. This commit meets all criteria for stable tree backporting: it's an important bugfix, has minimal regression risk, affects a critical subsystem, and follows established patterns for similar fixes that were previously backported. drivers/acpi/acpica/dsutils.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/acpi/acpica/dsutils.c b/drivers/acpi/acpica/dsutils.c index fb9ed5e1da89d..2bdae8a25e084 100644 --- a/drivers/acpi/acpica/dsutils.c +++ b/drivers/acpi/acpica/dsutils.c @@ -668,6 +668,8 @@ acpi_ds_create_operands(struct acpi_walk_state *walk_state, union acpi_parse_object *arguments[ACPI_OBJ_NUM_OPERANDS]; u32 arg_count = 0; u32 index = walk_state->num_operands; + u32 prev_num_operands = walk_state->num_operands; + u32 new_num_operands; u32 i; ACPI_FUNCTION_TRACE_PTR(ds_create_operands, first_arg); @@ -696,6 +698,7 @@ acpi_ds_create_operands(struct acpi_walk_state *walk_state, /* Create the interpreter arguments, in reverse order */ + new_num_operands = index; index--; for (i = 0; i < arg_count; i++) { arg = arguments[index]; @@ -720,7 +723,11 @@ acpi_ds_create_operands(struct acpi_walk_state *walk_state, * pop everything off of the operand stack and delete those * objects */ - acpi_ds_obj_stack_pop_and_delete(arg_count, walk_state); + walk_state->num_operands = i; + acpi_ds_obj_stack_pop_and_delete(new_num_operands, walk_state); + + /* Restore operand count */ + walk_state->num_operands = prev_num_operands; ACPI_EXCEPTION((AE_INFO, status, "While creating Arg %u", index)); return_ACPI_STATUS(status); -- 2.39.5

3 months, 3 weeks

1
29
0 0

[PATCH v2] mmc: sdhci-omap: Add error handling for sdhci_runtime_suspend_host()

by Wentao Liang

The sdhci_omap_runtime_suspend() calls sdhci_runtime_suspend_host() but does not handle the return value. A proper implementation can be found in sdhci_am654_runtime_suspend(). Add error handling for sdhci_runtime_suspend_host(). Return the error code if the suspend fails. Fixes: 51189eb9ddc8 ("mmc: sdhci-omap: Fix a lockdep warning for PM runtime init") Cc: stable(a)vger.kernel.org # 5.19 Signed-off-by: Wentao Liang <vulab(a)iscas.ac.cn> --- v2: Fix code error. drivers/mmc/host/sdhci-omap.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/mmc/host/sdhci-omap.c b/drivers/mmc/host/sdhci-omap.c index 54d795205fb4..f09f78cf244d 100644 --- a/drivers/mmc/host/sdhci-omap.c +++ b/drivers/mmc/host/sdhci-omap.c @@ -1438,12 +1438,16 @@ static int __maybe_unused sdhci_omap_runtime_suspend(struct device *dev) struct sdhci_host *host = dev_get_drvdata(dev); struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); struct sdhci_omap_host *omap_host = sdhci_pltfm_priv(pltfm_host); + int ret; if (host->tuning_mode != SDHCI_TUNING_MODE_3) mmc_retune_needed(host->mmc); - if (omap_host->con != -EINVAL) - sdhci_runtime_suspend_host(host); + if (omap_host->con != -EINVAL) { + ret = sdhci_runtime_suspend_host(host); + if (ret) + return ret; + } sdhci_omap_context_save(omap_host); -- 2.42.0.windows.2

3 months, 3 weeks

2
1
0 0

[PATCH] mmc: sdhci-sprd: Add error handling for sdhci_runtime_suspend_host()

by Wentao Liang

The dhci_sprd_runtime_suspend() calls sdhci_runtime_suspend_host() but does not handle the return value. A proper implementation can be found in sdhci_am654_runtime_suspend(). Add error handling for sdhci_runtime_suspend_host(). Return the error code if the suspend fails. Fixes: fb8bd90f83c4 ("mmc: sdhci-sprd: Add Spreadtrum's initial host controller") Cc: stable(a)vger.kernel.org # v4.20 Signed-off-by: Wentao Liang <vulab(a)iscas.ac.cn> --- drivers/mmc/host/sdhci-sprd.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/host/sdhci-sprd.c b/drivers/mmc/host/sdhci-sprd.c index db5e253b0f79..dd41427e973a 100644 --- a/drivers/mmc/host/sdhci-sprd.c +++ b/drivers/mmc/host/sdhci-sprd.c @@ -922,9 +922,12 @@ static int sdhci_sprd_runtime_suspend(struct device *dev) { struct sdhci_host *host = dev_get_drvdata(dev); struct sdhci_sprd_host *sprd_host = TO_SPRD_HOST(host); + int ret; mmc_hsq_suspend(host->mmc); - sdhci_runtime_suspend_host(host); + ret = sdhci_runtime_suspend_host(host); + if (ret) + return ret; clk_disable_unprepare(sprd_host->clk_sdio); clk_disable_unprepare(sprd_host->clk_enable); -- 2.42.0.windows.2

3 months, 3 weeks

3
2
0 0

Unlock CWIEME Berlin 2025 Attendee List!

by Garnet Conwell

Hi, We’re thrilled to give you exclusive access to the CWIEME Berlin 2025 Visitor Contact List! This database includes 8,678 verified visitor contacts and 550 exhibitor contacts, each with detailed Each contact contains: Contact name, Job Title, Business Name, Physical Address, Phone Numbers, Official Email address and many more. Limited-Time Offer: Get 20% OFF – Valid only until May 31st. Interested? Simply reply with “Send me pricing” to receive more details. Kind regards, Garnet Conwell Sr. Marketing Manager P.S. Don’t want to receive these updates? Just reply with “Unfollow.”

3 months, 3 weeks

1
0
0 0

[PATCH 5.15 00/59] 5.15.184-rc1 review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 5.15.184 release. There are 59 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know. Responses should be made by Thu, 22 May 2025 12:57:37 +0000. Anything received after that time might be too late. The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.15.184-r… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.15.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 5.15.184-rc1 Alexander Lobakin <alexandr.lobakin(a)intel.com> ice: arfs: fix use-after-free when freeing @rx_cpu_rmap Florian Westphal <fw(a)strlen.de> netfilter: nf_tables: do not defer rule destruction via call_rcu Pablo Neira Ayuso <pablo(a)netfilter.org> netfilter: nf_tables: wait for rcu grace period on net_device removal Florian Westphal <fw(a)strlen.de> netfilter: nf_tables: pass nft_chain to destroy function, not nft_ctx Josef Bacik <josef(a)toxicpanda.com> btrfs: do not clean up repair bio if submit fails Filipe Manana <fdmanana(a)suse.com> btrfs: don't BUG_ON() when 0 reference count at btrfs_lookup_extent_info() Eric Dumazet <edumazet(a)google.com> sctp: add mutual exclusion in proc_sctp_do_udp_port() Feng Tang <feng.tang(a)linux.alibaba.com> selftests/mm: compaction_test: support platform with huge mount of memory GONG Ruiqi <gongruiqi1(a)huawei.com> usb: typec: fix pm usage counter imbalance in ucsi_ccg_sync_control() Dan Carpenter <dan.carpenter(a)linaro.org> usb: typec: fix potential array underflow in ucsi_ccg_sync_control() RD Babiera <rdbabiera(a)google.com> usb: typec: altmodes/displayport: create sysfs nodes as driver's default device attribute group Andrei Kuchynski <akuchynski(a)chromium.org> usb: typec: ucsi: displayport: Fix deadlock Sebastian Andrzej Siewior <bigeasy(a)linutronix.de> clocksource/i8253: Use raw_spinlock_irqsave() in clockevent_i8253_disable() Fengnan Chang <changfengnan(a)bytedance.com> block: fix direct io NOWAIT flag not work Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: fix memory leak in error handling path of idxd_setup_groups Shuai Xue <xueshuai(a)linux.alibaba.com> dmaengine: idxd: fix memory leak in error handling path of idxd_setup_engines Yemike Abhilash Chandra <y-abhilashchandra(a)ti.com> dmaengine: ti: k3-udma: Use cap_mask directly from dma_device structure instead of a local copy Ronald Wahl <ronald.wahl(a)legrand.com> dmaengine: ti: k3-udma: Add missing locking Fedor Pchelkin <pchelkin(a)ispras.ru> wifi: mt76: disable napi on driver removal Claudiu Beznea <claudiu.beznea.uj(a)bp.renesas.com> phy: renesas: rcar-gen3-usb2: Set timing registers only once Ma Ke <make24(a)iscas.ac.cn> phy: Fix error handling in tegra_xusb_port_init Steven Rostedt <rostedt(a)goodmis.org> tracing: samples: Initialize trace_array_printk() with the correct function pengdonglin <pengdonglin(a)xiaomi.com> ftrace: Fix preemption accounting for stacktrace filter command pengdonglin <pengdonglin(a)xiaomi.com> ftrace: Fix preemption accounting for stacktrace trigger command Nicolas Chauvet <kwizart(a)gmail.com> ALSA: usb-audio: Add sample rate quirk for Microdia JP001 USB Camera Christian Heusel <christian(a)heusel.eu> ALSA: usb-audio: Add sample rate quirk for Audioengine D1 Wentao Liang <vulab(a)iscas.ac.cn> ALSA: es1968: Add error handling for snd_pcm_hw_constraint_pow2() Jeremy Linton <jeremy.linton(a)arm.com> ACPI: PPTT: Fix processor subtable walk Filipe Manana <fdmanana(a)suse.com> btrfs: fix discard worker infinite loop after disabling discard Nathan Lynch <nathan.lynch(a)amd.com> dmaengine: Revert "dmaengine: dmatest: Fix dmatest waiting less when interrupted" Peter Zijlstra <peterz(a)infradead.org> x86/its: FineIBT-paranoid vs ITS Eric Biggers <ebiggers(a)google.com> x86/its: Fix build errors when CONFIG_MODULES=n Peter Zijlstra <peterz(a)infradead.org> x86/its: Use dynamic thunks for indirect branches Pawan Gupta <pawan.kumar.gupta(a)linux.intel.com> x86/its: Align RETs in BHB clear sequence to avoid thunking Pawan Gupta <pawan.kumar.gupta(a)linux.intel.com> x86/its: Add "vmexit" option to skip mitigation on some CPUs Pawan Gupta <pawan.kumar.gupta(a)linux.intel.com> x86/its: Enable Indirect Target Selection mitigation Pawan Gupta <pawan.kumar.gupta(a)linux.intel.com> x86/its: Add support for ITS-safe return thunk Josh Poimboeuf <jpoimboe(a)kernel.org> x86/alternatives: Remove faulty optimization Borislav Petkov (AMD) <bp(a)alien8.de> x86/alternative: Optimize returns patching Pawan Gupta <pawan.kumar.gupta(a)linux.intel.com> x86/its: Add support for ITS-safe indirect thunk Pawan Gupta <pawan.kumar.gupta(a)linux.intel.com> x86/its: Enumerate Indirect Target Selection (ITS) bug Pawan Gupta <pawan.kumar.gupta(a)linux.intel.com> Documentation: x86/bugs/its: Add ITS documentation Pawan Gupta <pawan.kumar.gupta(a)linux.intel.com> x86/speculation: Remove the extra #ifdef around CALL_NOSPEC Pawan Gupta <pawan.kumar.gupta(a)linux.intel.com> x86/speculation: Add a conditional CS prefix to CALL_NOSPEC Pawan Gupta <pawan.kumar.gupta(a)linux.intel.com> x86/speculation: Simplify and make CALL_NOSPEC consistent Peter Zijlstra <peterz(a)infradead.org> x86,nospec: Simplify {JMP,CALL}_NOSPEC Trond Myklebust <trond.myklebust(a)hammerspace.com> NFSv4/pnfs: Reset the layout state after a layoutreturn Abdun Nihaal <abdun.nihaal(a)gmail.com> qlcnic: fix memory leak in qlcnic_sriov_channel_cfg_cmd() Geert Uytterhoeven <geert+renesas(a)glider.be> ALSA: sh: SND_AICA should depend on SH_DMA_API Vladimir Oltean <vladimir.oltean(a)nxp.com> net: dsa: sja1105: discard incoming frames in BR_STATE_LISTENING Mathieu Othacehe <othacehe(a)gnu.org> net: cadence: macb: Fix a possible deadlock in macb_halt_tx. Cong Wang <xiyou.wangcong(a)gmail.com> net_sched: Flush gso_skb list too during ->change() Geert Uytterhoeven <geert+renesas(a)glider.be> spi: loopback-test: Do not split 1024-byte hexdumps Li Lingfeng <lilingfeng3(a)huawei.com> nfs: handle failure of nfs_get_lock_context in unlock path Zhu Yanjun <yanjun.zhu(a)linux.dev> RDMA/rxe: Fix slab-use-after-free Read in rxe_queue_cleanup bug David Lechner <dlechner(a)baylibre.com> iio: chemical: sps30: use aligned_s64 for timestamp Jonathan Cameron <Jonathan.Cameron(a)huawei.com> iio: adc: ad7768-1: Fix insufficient alignment of timestamp. Masami Hiramatsu (Google) <mhiramat(a)kernel.org> tracing: probes: Fix a possible race in trace_probe_log APIs Hans de Goede <hdegoede(a)redhat.com> platform/x86: asus-wmi: Fix wlan_ctrl_by_user detection ------------- Diffstat: Documentation/ABI/testing/sysfs-devices-system-cpu | 1 + Documentation/admin-guide/hw-vuln/index.rst | 1 + .../hw-vuln/indirect-target-selection.rst | 156 +++++++++++++ Documentation/admin-guide/kernel-parameters.txt | 15 ++ Makefile | 4 +- arch/x86/Kconfig | 11 + arch/x86/entry/entry_64.S | 20 +- arch/x86/include/asm/alternative.h | 32 +++ arch/x86/include/asm/cpufeatures.h | 3 + arch/x86/include/asm/msr-index.h | 8 + arch/x86/include/asm/nospec-branch.h | 57 +++-- arch/x86/kernel/alternative.c | 243 ++++++++++++++++++++- arch/x86/kernel/cpu/bugs.c | 139 +++++++++++- arch/x86/kernel/cpu/common.c | 63 +++++- arch/x86/kernel/ftrace.c | 2 +- arch/x86/kernel/module.c | 7 + arch/x86/kernel/static_call.c | 2 +- arch/x86/kernel/vmlinux.lds.S | 10 + arch/x86/kvm/x86.c | 4 +- arch/x86/lib/retpoline.S | 39 ++++ arch/x86/net/bpf_jit_comp.c | 8 +- block/fops.c | 5 +- drivers/acpi/pptt.c | 11 +- drivers/base/cpu.c | 8 + drivers/clocksource/i8253.c | 6 +- drivers/dma/dmatest.c | 6 +- drivers/dma/idxd/init.c | 8 + drivers/dma/ti/k3-udma.c | 10 +- drivers/iio/adc/ad7768-1.c | 2 +- drivers/iio/chemical/sps30.c | 2 +- drivers/infiniband/sw/rxe/rxe_cq.c | 5 +- drivers/net/dsa/sja1105/sja1105_main.c | 6 +- drivers/net/ethernet/cadence/macb_main.c | 19 +- drivers/net/ethernet/intel/ice/ice_arfs.c | 9 +- drivers/net/ethernet/intel/ice/ice_lib.c | 5 +- drivers/net/ethernet/intel/ice/ice_main.c | 20 +- .../ethernet/qlogic/qlcnic/qlcnic_sriov_common.c | 7 +- drivers/net/wireless/mediatek/mt76/dma.c | 1 + drivers/phy/renesas/phy-rcar-gen3-usb2.c | 7 +- drivers/phy/tegra/xusb.c | 8 +- drivers/platform/x86/asus-wmi.c | 3 +- drivers/spi/spi-loopback-test.c | 2 +- drivers/usb/typec/altmodes/displayport.c | 18 +- drivers/usb/typec/ucsi/displayport.c | 19 +- drivers/usb/typec/ucsi/ucsi.c | 34 +++ drivers/usb/typec/ucsi/ucsi.h | 3 + drivers/usb/typec/ucsi/ucsi_ccg.c | 5 + fs/btrfs/discard.c | 17 +- fs/btrfs/extent-tree.c | 25 ++- fs/btrfs/extent_io.c | 15 +- fs/nfs/nfs4proc.c | 9 +- fs/nfs/pnfs.c | 9 + include/linux/cpu.h | 2 + include/linux/module.h | 5 + include/net/netfilter/nf_tables.h | 2 +- include/net/sch_generic.h | 15 ++ kernel/trace/trace_dynevent.c | 16 +- kernel/trace/trace_dynevent.h | 1 + kernel/trace/trace_events_trigger.c | 2 +- kernel/trace/trace_functions.c | 6 +- kernel/trace/trace_kprobe.c | 2 +- kernel/trace/trace_probe.c | 9 + kernel/trace/trace_uprobe.c | 2 +- net/netfilter/nf_tables_api.c | 54 +++-- net/netfilter/nft_immediate.c | 2 +- net/sched/sch_codel.c | 2 +- net/sched/sch_fq.c | 2 +- net/sched/sch_fq_codel.c | 2 +- net/sched/sch_fq_pie.c | 2 +- net/sched/sch_hhf.c | 2 +- net/sched/sch_pie.c | 2 +- net/sctp/sysctl.c | 4 + samples/ftrace/sample-trace-array.c | 2 +- sound/pci/es1968.c | 6 +- sound/sh/Kconfig | 2 +- sound/usb/quirks.c | 4 + tools/testing/selftests/vm/compaction_test.c | 19 +- 77 files changed, 1112 insertions(+), 184 deletions(-)

3 months, 3 weeks

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Are there any internal kernel ABI/API guarantees in -stable releases?

by Chris Friesen

Hi everyone, Looking at https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html there are a number of criteria for patches to -stable releases. However, there is no mention of preserving the stability of internal kernel ABIs and/or APIs. Do successive patch releases of -stable kernels provide any guarantees that they will not change ABIs and/or APIs, remove functionality, change behaviour, etc.? For example, would a -stable commit be allowed to make a change that would break an out-of-tree (but open-source) device driver if that's the only way to fix a bug? I know that during the development of new major/minor versions developers are free to break ABIs and APIs at will as long as they fix up all the in-tree code. Does that still hold true for -stable commits or do things get more restrictive? Thanks, Chris

3 months, 3 weeks

2
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+ mm-fix-the-inaccurate-memory-statistics-issue-for-users.patch added to mm-hotfixes-unstable branch

by Andrew Morton

The patch titled Subject: mm: fix the inaccurate memory statistics issue for users has been added to the -mm mm-hotfixes-unstable branch. Its filename is mm-fix-the-inaccurate-memory-statistics-issue-for-users.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patche… This patch will later appear in the mm-hotfixes-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Baolin Wang <baolin.wang(a)linux.alibaba.com> Subject: mm: fix the inaccurate memory statistics issue for users Date: Sat, 24 May 2025 09:59:53 +0800 On some large machines with a high number of CPUs running a 64K pagesize kernel, we found that the 'RES' field is always 0 displayed by the top command for some processes, which will cause a lot of confusion for users. PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 875525 root 20 0 12480 0 0 R 0.3 0.0 0:00.08 top 1 root 20 0 172800 0 0 S 0.0 0.0 0:04.52 systemd The main reason is that the batch size of the percpu counter is quite large on these machines, caching a significant percpu value, since converting mm's rss stats into percpu_counter by commit f1a7941243c1 ("mm: convert mm's rss stats into percpu_counter"). Intuitively, the batch number should be optimized, but on some paths, performance may take precedence over statistical accuracy. Therefore, introducing a new interface to add the percpu statistical count and display it to users, which can remove the confusion. In addition, this change is not expected to be on a performance-critical path, so the modification should be acceptable. Link: https://lkml.kernel.org/r/4f0fd51eb4f48c1a34226456b7a8b4ebff11bf72.17480518… Fixes: f1a7941243c1 ("mm: convert mm's rss stats into percpu_counter") Signed-off-by: Baolin Wang <baolin.wang(a)linux.alibaba.com> Tested-by Donet Tom <donettom(a)linux.ibm.com> Reviewed-by: Aboorva Devarajan <aboorvad(a)linux.ibm.com> Tested-by: Aboorva Devarajan <aboorvad(a)linux.ibm.com> Acked-by: Shakeel Butt <shakeel.butt(a)linux.dev> Acked-by: SeongJae Park <sj(a)kernel.org> Cc: David Hildenbrand <david(a)redhat.com> Cc: Liam Howlett <liam.howlett(a)oracle.com> Cc: Lorenzo Stoakes <lorenzo.stoakes(a)oracle.com> Cc: Michal Hocko <mhocko(a)suse.com> Cc: Mike Rapoport <rppt(a)kernel.org> Cc: Suren Baghdasaryan <surenb(a)google.com> Cc: Vlastimil Babka <vbabka(a)suse.cz> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- fs/proc/task_mmu.c | 14 +++++++------- include/linux/mm.h | 5 +++++ 2 files changed, 12 insertions(+), 7 deletions(-) --- a/fs/proc/task_mmu.c~mm-fix-the-inaccurate-memory-statistics-issue-for-users +++ a/fs/proc/task_mmu.c @@ -36,9 +36,9 @@ void task_mem(struct seq_file *m, struct unsigned long text, lib, swap, anon, file, shmem; unsigned long hiwater_vm, total_vm, hiwater_rss, total_rss; - anon = get_mm_counter(mm, MM_ANONPAGES); - file = get_mm_counter(mm, MM_FILEPAGES); - shmem = get_mm_counter(mm, MM_SHMEMPAGES); + anon = get_mm_counter_sum(mm, MM_ANONPAGES); + file = get_mm_counter_sum(mm, MM_FILEPAGES); + shmem = get_mm_counter_sum(mm, MM_SHMEMPAGES); /* * Note: to minimize their overhead, mm maintains hiwater_vm and @@ -59,7 +59,7 @@ void task_mem(struct seq_file *m, struct text = min(text, mm->exec_vm << PAGE_SHIFT); lib = (mm->exec_vm << PAGE_SHIFT) - text; - swap = get_mm_counter(mm, MM_SWAPENTS); + swap = get_mm_counter_sum(mm, MM_SWAPENTS); SEQ_PUT_DEC("VmPeak:\t", hiwater_vm); SEQ_PUT_DEC(" kB\nVmSize:\t", total_vm); SEQ_PUT_DEC(" kB\nVmLck:\t", mm->locked_vm); @@ -92,12 +92,12 @@ unsigned long task_statm(struct mm_struc unsigned long *shared, unsigned long *text, unsigned long *data, unsigned long *resident) { - *shared = get_mm_counter(mm, MM_FILEPAGES) + - get_mm_counter(mm, MM_SHMEMPAGES); + *shared = get_mm_counter_sum(mm, MM_FILEPAGES) + + get_mm_counter_sum(mm, MM_SHMEMPAGES); *text = (PAGE_ALIGN(mm->end_code) - (mm->start_code & PAGE_MASK)) >> PAGE_SHIFT; *data = mm->data_vm + mm->stack_vm; - *resident = *shared + get_mm_counter(mm, MM_ANONPAGES); + *resident = *shared + get_mm_counter_sum(mm, MM_ANONPAGES); return mm->total_vm; } --- a/include/linux/mm.h~mm-fix-the-inaccurate-memory-statistics-issue-for-users +++ a/include/linux/mm.h @@ -2708,6 +2708,11 @@ static inline unsigned long get_mm_count return percpu_counter_read_positive(&mm->rss_stat[member]); } +static inline unsigned long get_mm_counter_sum(struct mm_struct *mm, int member) +{ + return percpu_counter_sum_positive(&mm->rss_stat[member]); +} + void mm_trace_rss_stat(struct mm_struct *mm, int member); static inline void add_mm_counter(struct mm_struct *mm, int member, long value) _ Patches currently in -mm which might be from baolin.wang(a)linux.alibaba.com are mm-fix-the-inaccurate-memory-statistics-issue-for-users.patch

3 months, 3 weeks

1
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Re: [PATCH v2 1/1] netfilter: load nf_log_syslog on enabling nf_conntrack_log_invalid

by Lance Yang

Cc: stable On 2025/5/28 19:42, Lance Yang wrote: > > Thanks for taking the time to review! > > On 2025/5/28 19:05, Florian Westphal wrote: >> Lance Yang <ioworker0(a)gmail.com> wrote: >>> From: Lance Yang <lance.yang(a)linux.dev> >>> >>> When no logger is registered, nf_conntrack_log_invalid fails to log >>> invalid >>> packets, leaving users unaware of actual invalid traffic. Improve >>> this by >>> loading nf_log_syslog, similar to how 'iptables -I FORWARD 1 -m >>> conntrack >>> --ctstate INVALID -j LOG' triggers it. >> >> Acked-by: Florian Westphal <fw(a)strlen.de> > > Hmm... should this patch be backported to stable kernels? Without it, > nf_conntrack_log_invalid won't log invalid packets when no logger is > registered, causing unnecessary debugging effort ;) > > Back then, I actually thought my machine wasn't seeing any invalid > packets... turns out they just weren't logged in dmesg :( > > Thanks, > Lance

3 months, 3 weeks

1
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KASAN: slab-out-of-bounds Read in steelseries_remove in linux6.12-6.15

by Jianzhou Zhao

Hello, I found a potential bug titled " KASAN: slab-out-of-bounds Read in steelseries_remove " with modified syzkaller in the Linux6.12 - 6.15. This bug was verified to exist in 6.12.24,6.12.28 and 6.15. During the execution of poc, for the same hdev device, in the function steelseries_probe, the sd of hdev is first set to the steelseries_device type. If sd->quriks=0x1, Then execute steelseries_srws1_probe to reset the sd of hdev to the type steelseries_srws1_data. However, when the device is removed and the steelseries_remove command is executed, the sd obtained through hdev will first be forcibly converted to the steelseries_device type, but the value of sd->quirks may not be 0x1, but rather become some pointer. For example, sd->quirks=0xffff888022167000, then steelseries_srws1_remove (hdev) cannot be executed. This will lead to type errors in subsequent access to sd (wrongly treating sd of type steelseries_srws1_data as of type steelseries_device), and an out-of-bounds access error occurs when accessing sd->lock. However, I still don't understand why the sd-> quirks of the same hdev in the detection phase and the deletion phase are completely inconsistent (even Pointers appear). static int steelseries_probe(struct hid_device *hdev, const struct hid_device_id *id) { struct steelseries_device *sd; int ret; sd = devm_kzalloc(&hdev->dev, sizeof(*sd), GFP_KERNEL); ....... hid_set_drvdata(hdev, sd); [1] Set hdev->dev->driver_data to the type of steelseries_device ( hdev->dev->driver_data = sd ) sd->hdev = hdev; sd->quirks = id->driver_data; //Here, sd->quirks is assigned a value of 0x1 if (sd->quirks & STEELSERIES_SRWS1) { //Passed the inspection successfully #if IS_BUILTIN(CONFIG_LEDS_CLASS) || \ (IS_MODULE(CONFIG_LEDS_CLASS) && IS_MODULE(CONFIG_HID_STEELSERIES)) return steelseries_srws1_probe(hdev, id); [2] Set hdev->dev->driver_data to the type of steelseries_srws1_data #else return -ENODEV; #endif } ...... } static int steelseries_srws1_probe(struct hid_device *hdev, const struct hid_device_id *id) { int ret, i; struct led_classdev *led; size_t name_sz; char *name; struct steelseries_srws1_data *drv_data = kzalloc(sizeof(*drv_data), GFP_KERNEL); if (drv_data == NULL) { hid_err(hdev, "can't alloc SRW-S1 memory\n"); return -ENOMEM; } hid_set_drvdata(hdev, drv_data); [3] Set hdev->dev->driver_data to the type of steelseries_srws1_data } static void steelseries_remove(struct hid_device *hdev) { struct steelseries_device *sd = hid_get_drvdata(hdev); [4] The default sd is of the steelseries_device type unsigned long flags; if (sd->quirks & STEELSERIES_SRWS1) { [5]sd->quriks is not 0x1 but equal to the value of a pointer, such as 0xffff888022167000. Therefore, the inspection cannot be passed and steelseries_srws1_remove cannot be executed #if IS_BUILTIN(CONFIG_LEDS_CLASS) || \ (IS_MODULE(CONFIG_LEDS_CLASS) && IS_MODULE(CONFIG_HID_STEELSERIES)) steelseries_srws1_remove(hdev); #endif return; } spin_lock_irqsave(&sd->lock, flags); [6] The correct type of sd is steelseries_srws1_data. However, here, sd is treated as the type of steelseries_srws1_data to access sd->quirks, resulting in out-of-bounds access ...... } The commit of the kernel is : ef4999852d307d38cfdecd91ed6892cc03beb9b8 kernel config: https://syzkaller.appspot.com/text?tag=KernelConfig&x=55f8591b98dd132 compiler: gcc version 11.4.0 If you fix this issue, please add the following tag to the commit: Reported-by: Jianzhou Zhao <luckd0g(a)163.com> Reported-by: Penglei Jiang <superman.xpt(a)gmail.com> I put the reproduction program of this bug at the end of the email. ------------[ cut here ]----------------------------------------- TITLE: KASAN: slab-out-of-bounds Read in steelseries_remove ------------[ cut here ]------------ ================================================================== BUG: KASAN: slab-out-of-bounds in __lock_acquire+0x31b5/0x3f40 kernel/locking/lockdep.c:5065 Read of size 8 at addr ffff8880285a64d0 by task kworker/0:11/12464 CPU: 0 UID: 0 PID: 12464 Comm: kworker/0:11 Not tainted 6.12.28 #29 Hardware name: QEMU Ubuntu 24.04 PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Workqueue: usb_hub_wq hub_event Call Trace: <TASK> __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x10e/0x1f0 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:377 [inline] print_report+0xc6/0x620 mm/kasan/report.c:488 kasan_report+0xd8/0x110 mm/kasan/report.c:601 __lock_acquire+0x31b5/0x3f40 kernel/locking/lockdep.c:5065 lock_acquire.part.0+0x11f/0x380 kernel/locking/lockdep.c:5825 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162 steelseries_remove+0x8c/0x1f0 drivers/hid/hid-steelseries.c:564 hid_device_remove+0xce/0x260 drivers/hid/hid-core.c:2758 device_remove+0xc8/0x170 drivers/base/dd.c:567 __device_release_driver drivers/base/dd.c:1272 [inline] device_release_driver_internal+0x44b/0x620 drivers/base/dd.c:1295 bus_remove_device+0x22f/0x420 drivers/base/bus.c:576 device_del+0x377/0x9c0 drivers/base/core.c:3881 hid_remove_device drivers/hid/hid-core.c:2942 [inline] hid_destroy_device+0xe5/0x150 drivers/hid/hid-core.c:2962 usbhid_disconnect+0xa0/0xe0 drivers/hid/usbhid/hid-core.c:1459 usb_unbind_interface+0x1e8/0x960 drivers/usb/core/driver.c:461 device_remove drivers/base/dd.c:569 [inline] device_remove+0x122/0x170 drivers/base/dd.c:561 __device_release_driver drivers/base/dd.c:1272 [inline] device_release_driver_internal+0x44b/0x620 drivers/base/dd.c:1295 bus_remove_device+0x22f/0x420 drivers/base/bus.c:576 device_del+0x377/0x9c0 drivers/base/core.c:3881 usb_disable_device+0x35f/0x7c0 drivers/usb/core/message.c:1418 usb_disconnect+0x2e0/0x920 drivers/usb/core/hub.c:2315 hub_port_connect drivers/usb/core/hub.c:5373 [inline] hub_port_connect_change drivers/usb/core/hub.c:5673 [inline] port_event drivers/usb/core/hub.c:5833 [inline] hub_event+0x1da4/0x4e20 drivers/usb/core/hub.c:5915 process_one_work+0x9c3/0x1b70 kernel/workqueue.c:3229 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x61e/0xe40 kernel/workqueue.c:3391 kthread+0x2ab/0x390 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:152 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 </TASK> Allocated by task 2285: kasan_save_stack+0x33/0x60 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:377 [inline] __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394 kmalloc_noprof include/linux/slab.h:878 [inline] kzalloc_noprof include/linux/slab.h:1014 [inline] steelseries_srws1_probe drivers/hid/hid-steelseries.c:253 [inline] steelseries_probe+0x69d/0xf60 drivers/hid/hid-steelseries.c:528 __hid_device_probe drivers/hid/hid-core.c:2702 [inline] hid_device_probe+0x2f5/0x4f0 drivers/hid/hid-core.c:2739 call_driver_probe drivers/base/dd.c:579 [inline] really_probe+0x23a/0xa80 drivers/base/dd.c:657 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:799 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:829 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:957 bus_for_each_drv+0x157/0x1e0 drivers/base/bus.c:459 __device_attach+0x1e5/0x4b0 drivers/base/dd.c:1029 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:534 device_add+0x1143/0x1a80 drivers/base/core.c:3692 hid_add_device+0x377/0xa60 drivers/hid/hid-core.c:2885 usbhid_probe+0xd41/0x1400 drivers/hid/usbhid/hid-core.c:1432 usb_probe_interface+0x309/0x9d0 drivers/usb/core/driver.c:399 call_driver_probe drivers/base/dd.c:579 [inline] really_probe+0x23a/0xa80 drivers/base/dd.c:657 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:799 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:829 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:957 bus_for_each_drv+0x157/0x1e0 drivers/base/bus.c:459 __device_attach+0x1e5/0x4b0 drivers/base/dd.c:1029 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:534 device_add+0x1143/0x1a80 drivers/base/core.c:3692 usb_set_configuration+0x120e/0x1e10 drivers/usb/core/message.c:2210 usb_generic_driver_probe+0xb1/0x110 drivers/usb/core/generic.c:254 usb_probe_device+0xec/0x3e0 drivers/usb/core/driver.c:294 call_driver_probe drivers/base/dd.c:579 [inline] really_probe+0x23a/0xa80 drivers/base/dd.c:657 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:799 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:829 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:957 bus_for_each_drv+0x157/0x1e0 drivers/base/bus.c:459 __device_attach+0x1e5/0x4b0 drivers/base/dd.c:1029 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:534 device_add+0x1143/0x1a80 drivers/base/core.c:3692 usb_new_device+0xd04/0x19d0 drivers/usb/core/hub.c:2662 hub_port_connect drivers/usb/core/hub.c:5533 [inline] hub_port_connect_change drivers/usb/core/hub.c:5673 [inline] port_event drivers/usb/core/hub.c:5833 [inline] hub_event+0x2d92/0x4e20 drivers/usb/core/hub.c:5915 process_one_work+0x9c3/0x1b70 kernel/workqueue.c:3229 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x61e/0xe40 kernel/workqueue.c:3391 kthread+0x2ab/0x390 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:152 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 The buggy address belongs to the object at ffff8880285a6400 which belongs to the cache kmalloc-192 of size 192 The buggy address is located 72 bytes to the right of allocated 136-byte region [ffff8880285a6400, ffff8880285a6488) The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x285a6 ksm flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: f5(slab) raw: 00fff00000000000 ffff88801b0413c0 ffffea0000875540 dead000000000003 raw: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x52cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 9743, tgid 9743 (syz-executor), ts 61586032132, free_ts 61073188909 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x2f0/0x350 mm/page_alloc.c:1558 prep_new_page mm/page_alloc.c:1566 [inline] get_page_from_freelist+0x7d6/0x3660 mm/page_alloc.c:3476 __alloc_pages_noprof+0x229/0x2670 mm/page_alloc.c:4754 alloc_pages_mpol_noprof+0x2c9/0x610 mm/mempolicy.c:2269 alloc_slab_page mm/slub.c:2425 [inline] allocate_slab mm/slub.c:2595 [inline] new_slab+0x2df/0x410 mm/slub.c:2649 ___slab_alloc+0xe2f/0x19a0 mm/slub.c:3837 __slab_alloc.isra.0+0x56/0xb0 mm/slub.c:3927 __slab_alloc_node mm/slub.c:3980 [inline] slab_alloc_node mm/slub.c:4141 [inline] __kmalloc_cache_noprof+0x2b4/0x300 mm/slub.c:4309 kmalloc_noprof include/linux/slab.h:878 [inline] kzalloc_noprof include/linux/slab.h:1014 [inline] call_usermodehelper_setup+0xaf/0x360 kernel/umh.c:363 kobject_uevent_env+0x15fe/0x1860 lib/kobject_uevent.c:628 rx_queue_add_kobject net/core/net-sysfs.c:1124 [inline] net_rx_queue_update_kobjects+0x17c/0x5f0 net/core/net-sysfs.c:1164 register_queue_kobjects net/core/net-sysfs.c:1898 [inline] netdev_register_kobject+0x269/0x3a0 net/core/net-sysfs.c:2143 register_netdevice+0x1312/0x1db0 net/core/dev.c:10557 veth_newlink+0x354/0x9e0 drivers/net/veth.c:1830 rtnl_newlink_create net/core/rtnetlink.c:3542 [inline] __rtnl_newlink+0x1187/0x1910 net/core/rtnetlink.c:3762 rtnl_newlink+0x67/0xa0 net/core/rtnetlink.c:3775 page last free pid 9715 tgid 9715 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1127 [inline] free_unref_page+0x6d7/0x1080 mm/page_alloc.c:2659 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x54/0x120 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x192/0x1e0 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4104 [inline] slab_alloc_node mm/slub.c:4153 [inline] __kmalloc_cache_noprof+0x11e/0x300 mm/slub.c:4309 kmalloc_noprof include/linux/slab.h:878 [inline] kzalloc_noprof include/linux/slab.h:1014 [inline] kobject_uevent_env+0x265/0x1860 lib/kobject_uevent.c:540 __kobject_del+0x168/0x1f0 lib/kobject.c:601 kobject_cleanup lib/kobject.c:680 [inline] kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x327/0x5a0 lib/kobject.c:737 net_rx_queue_update_kobjects+0x476/0x5f0 net/core/net-sysfs.c:1178 netif_set_real_num_rx_queues+0x169/0x210 net/core/dev.c:3055 veth_init_queues+0x151/0x190 drivers/net/veth.c:1761 veth_newlink+0x530/0x9e0 drivers/net/veth.c:1873 rtnl_newlink_create net/core/rtnetlink.c:3542 [inline] __rtnl_newlink+0x1187/0x1910 net/core/rtnetlink.c:3762 rtnl_newlink+0x67/0xa0 net/core/rtnetlink.c:3775 rtnetlink_rcv_msg+0x3c7/0xea0 net/core/rtnetlink.c:6678 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2537 Memory state around the buggy address: ffff8880285a6380: 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc ffff8880285a6400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff8880285a6480: 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff8880285a6500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8880285a6580: 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc ================================================================== // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include <dirent.h> #include <endian.h> #include <errno.h> #include <fcntl.h> #include <signal.h> #include <stdarg.h> #include <stdbool.h> #include <stddef.h> #include <stdint.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <sys/mount.h> #include <sys/prctl.h> #include <sys/stat.h> #include <sys/syscall.h> #include <sys/types.h> #include <sys/wait.h> #include <time.h> #include <unistd.h> #include <linux/usb/ch9.h> static unsigned long long procid; static void sleep_ms(uint64_t ms) { usleep(ms * 1000); } static uint64_t current_time_ms(void) { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts)) exit(1); return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000; } static bool write_file(const char* file, const char* what, ...) { char buf[1024]; va_list args; va_start(args, what); vsnprintf(buf, sizeof(buf), what, args); va_end(args); buf[sizeof(buf) - 1] = 0; int len = strlen(buf); int fd = open(file, O_WRONLY | O_CLOEXEC); if (fd == -1) return false; if (write(fd, buf, len) != len) { int err = errno; close(fd); errno = err; return false; } close(fd); return true; } #define MAX_FDS 30 #define USB_MAX_IFACE_NUM 4 #define USB_MAX_EP_NUM 32 #define USB_MAX_FDS 6 struct usb_endpoint_index { struct usb_endpoint_descriptor desc; int handle; }; struct usb_iface_index { struct usb_interface_descriptor* iface; uint8_t bInterfaceNumber; uint8_t bAlternateSetting; uint8_t bInterfaceClass; struct usb_endpoint_index eps[USB_MAX_EP_NUM]; int eps_num; }; struct usb_device_index { struct usb_device_descriptor* dev; struct usb_config_descriptor* config; uint8_t bDeviceClass; uint8_t bMaxPower; int config_length; struct usb_iface_index ifaces[USB_MAX_IFACE_NUM]; int ifaces_num; int iface_cur; }; struct usb_info { int fd; struct usb_device_index index; }; static struct usb_info usb_devices[USB_MAX_FDS]; static struct usb_device_index* lookup_usb_index(int fd) { for (int i = 0; i < USB_MAX_FDS; i++) { if (__atomic_load_n(&usb_devices[i].fd, __ATOMIC_ACQUIRE) == fd) return &usb_devices[i].index; } return NULL; } static int usb_devices_num; static bool parse_usb_descriptor(const char* buffer, size_t length, struct usb_device_index* index) { if (length < sizeof(*index->dev) + sizeof(*index->config)) return false; memset(index, 0, sizeof(*index)); index->dev = (struct usb_device_descriptor*)buffer; index->config = (struct usb_config_descriptor*)(buffer + sizeof(*index->dev)); index->bDeviceClass = index->dev->bDeviceClass; index->bMaxPower = index->config->bMaxPower; index->config_length = length - sizeof(*index->dev); index->iface_cur = -1; size_t offset = 0; while (true) { if (offset + 1 >= length) break; uint8_t desc_length = buffer[offset]; uint8_t desc_type = buffer[offset + 1]; if (desc_length <= 2) break; if (offset + desc_length > length) break; if (desc_type == USB_DT_INTERFACE && index->ifaces_num < USB_MAX_IFACE_NUM) { struct usb_interface_descriptor* iface = (struct usb_interface_descriptor*)(buffer + offset); index->ifaces[index->ifaces_num].iface = iface; index->ifaces[index->ifaces_num].bInterfaceNumber = iface->bInterfaceNumber; index->ifaces[index->ifaces_num].bAlternateSetting = iface->bAlternateSetting; index->ifaces[index->ifaces_num].bInterfaceClass = iface->bInterfaceClass; index->ifaces_num++; } if (desc_type == USB_DT_ENDPOINT && index->ifaces_num > 0) { struct usb_iface_index* iface = &index->ifaces[index->ifaces_num - 1]; if (iface->eps_num < USB_MAX_EP_NUM) { memcpy(&iface->eps[iface->eps_num].desc, buffer + offset, sizeof(iface->eps[iface->eps_num].desc)); iface->eps_num++; } } offset += desc_length; } return true; } static struct usb_device_index* add_usb_index(int fd, const char* dev, size_t dev_len) { int i = __atomic_fetch_add(&usb_devices_num, 1, __ATOMIC_RELAXED); if (i >= USB_MAX_FDS) return NULL; if (!parse_usb_descriptor(dev, dev_len, &usb_devices[i].index)) return NULL; __atomic_store_n(&usb_devices[i].fd, fd, __ATOMIC_RELEASE); return &usb_devices[i].index; } struct vusb_connect_string_descriptor { uint32_t len; char* str; } __attribute__((packed)); struct vusb_connect_descriptors { uint32_t qual_len; char* qual; uint32_t bos_len; char* bos; uint32_t strs_len; struct vusb_connect_string_descriptor strs[0]; } __attribute__((packed)); static const char default_string[] = { 8, USB_DT_STRING, 's', 0, 'y', 0, 'z', 0 }; static const char default_lang_id[] = { 4, USB_DT_STRING, 0x09, 0x04 }; static bool lookup_connect_response_in(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, struct usb_qualifier_descriptor* qual, char** response_data, uint32_t* response_length) { struct usb_device_index* index = lookup_usb_index(fd); uint8_t str_idx; if (!index) return false; switch (ctrl->bRequestType & USB_TYPE_MASK) { case USB_TYPE_STANDARD: switch (ctrl->bRequest) { case USB_REQ_GET_DESCRIPTOR: switch (ctrl->wValue >> 8) { case USB_DT_DEVICE: *response_data = (char*)index->dev; *response_length = sizeof(*index->dev); return true; case USB_DT_CONFIG: *response_data = (char*)index->config; *response_length = index->config_length; return true; case USB_DT_STRING: str_idx = (uint8_t)ctrl->wValue; if (descs && str_idx < descs->strs_len) { *response_data = descs->strs[str_idx].str; *response_length = descs->strs[str_idx].len; return true; } if (str_idx == 0) { *response_data = (char*)&default_lang_id[0]; *response_length = default_lang_id[0]; return true; } *response_data = (char*)&default_string[0]; *response_length = default_string[0]; return true; case USB_DT_BOS: *response_data = descs->bos; *response_length = descs->bos_len; return true; case USB_DT_DEVICE_QUALIFIER: if (!descs->qual) { qual->bLength = sizeof(*qual); qual->bDescriptorType = USB_DT_DEVICE_QUALIFIER; qual->bcdUSB = index->dev->bcdUSB; qual->bDeviceClass = index->dev->bDeviceClass; qual->bDeviceSubClass = index->dev->bDeviceSubClass; qual->bDeviceProtocol = index->dev->bDeviceProtocol; qual->bMaxPacketSize0 = index->dev->bMaxPacketSize0; qual->bNumConfigurations = index->dev->bNumConfigurations; qual->bRESERVED = 0; *response_data = (char*)qual; *response_length = sizeof(*qual); return true; } *response_data = descs->qual; *response_length = descs->qual_len; return true; default: break; } break; default: break; } break; default: break; } return false; } typedef bool (*lookup_connect_out_response_t)(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, bool* done); static bool lookup_connect_response_out_generic(int fd, const struct vusb_connect_descriptors* descs, const struct usb_ctrlrequest* ctrl, bool* done) { switch (ctrl->bRequestType & USB_TYPE_MASK) { case USB_TYPE_STANDARD: switch (ctrl->bRequest) { case USB_REQ_SET_CONFIGURATION: *done = true; return true; default: break; } break; } return false; } struct vusb_descriptor { uint8_t req_type; uint8_t desc_type; uint32_t len; char data[0]; } __attribute__((packed)); struct vusb_descriptors { uint32_t len; struct vusb_descriptor* generic; struct vusb_descriptor* descs[0]; } __attribute__((packed)); struct vusb_response { uint8_t type; uint8_t req; uint32_t len; char data[0]; } __attribute__((packed)); struct vusb_responses { uint32_t len; struct vusb_response* generic; struct vusb_response* resps[0]; } __attribute__((packed)); static bool lookup_control_response(const struct vusb_descriptors* descs, const struct vusb_responses* resps, struct usb_ctrlrequest* ctrl, char** response_data, uint32_t* response_length) { int descs_num = 0; int resps_num = 0; if (descs) descs_num = (descs->len - offsetof(struct vusb_descriptors, descs)) / sizeof(descs->descs[0]); if (resps) resps_num = (resps->len - offsetof(struct vusb_responses, resps)) / sizeof(resps->resps[0]); uint8_t req = ctrl->bRequest; uint8_t req_type = ctrl->bRequestType & USB_TYPE_MASK; uint8_t desc_type = ctrl->wValue >> 8; if (req == USB_REQ_GET_DESCRIPTOR) { int i; for (i = 0; i < descs_num; i++) { struct vusb_descriptor* desc = descs->descs[i]; if (!desc) continue; if (desc->req_type == req_type && desc->desc_type == desc_type) { *response_length = desc->len; if (*response_length != 0) *response_data = &desc->data[0]; else *response_data = NULL; return true; } } if (descs && descs->generic) { *response_data = &descs->generic->data[0]; *response_length = descs->generic->len; return true; } } else { int i; for (i = 0; i < resps_num; i++) { struct vusb_response* resp = resps->resps[i]; if (!resp) continue; if (resp->type == req_type && resp->req == req) { *response_length = resp->len; if (*response_length != 0) *response_data = &resp->data[0]; else *response_data = NULL; return true; } } if (resps && resps->generic) { *response_data = &resps->generic->data[0]; *response_length = resps->generic->len; return true; } } return false; } #define UDC_NAME_LENGTH_MAX 128 struct usb_raw_init { __u8 driver_name[UDC_NAME_LENGTH_MAX]; __u8 device_name[UDC_NAME_LENGTH_MAX]; __u8 speed; }; enum usb_raw_event_type { USB_RAW_EVENT_INVALID = 0, USB_RAW_EVENT_CONNECT = 1, USB_RAW_EVENT_CONTROL = 2, }; struct usb_raw_event { __u32 type; __u32 length; __u8 data[0]; }; struct usb_raw_ep_io { __u16 ep; __u16 flags; __u32 length; __u8 data[0]; }; #define USB_RAW_EPS_NUM_MAX 30 #define USB_RAW_EP_NAME_MAX 16 #define USB_RAW_EP_ADDR_ANY 0xff struct usb_raw_ep_caps { __u32 type_control : 1; __u32 type_iso : 1; __u32 type_bulk : 1; __u32 type_int : 1; __u32 dir_in : 1; __u32 dir_out : 1; }; struct usb_raw_ep_limits { __u16 maxpacket_limit; __u16 max_streams; __u32 reserved; }; struct usb_raw_ep_info { __u8 name[USB_RAW_EP_NAME_MAX]; __u32 addr; struct usb_raw_ep_caps caps; struct usb_raw_ep_limits limits; }; struct usb_raw_eps_info { struct usb_raw_ep_info eps[USB_RAW_EPS_NUM_MAX]; }; #define USB_RAW_IOCTL_INIT _IOW('U', 0, struct usb_raw_init) #define USB_RAW_IOCTL_RUN _IO('U', 1) #define USB_RAW_IOCTL_EVENT_FETCH _IOR('U', 2, struct usb_raw_event) #define USB_RAW_IOCTL_EP0_WRITE _IOW('U', 3, struct usb_raw_ep_io) #define USB_RAW_IOCTL_EP0_READ _IOWR('U', 4, struct usb_raw_ep_io) #define USB_RAW_IOCTL_EP_ENABLE _IOW('U', 5, struct usb_endpoint_descriptor) #define USB_RAW_IOCTL_EP_DISABLE _IOW('U', 6, __u32) #define USB_RAW_IOCTL_EP_WRITE _IOW('U', 7, struct usb_raw_ep_io) #define USB_RAW_IOCTL_EP_READ _IOWR('U', 8, struct usb_raw_ep_io) #define USB_RAW_IOCTL_CONFIGURE _IO('U', 9) #define USB_RAW_IOCTL_VBUS_DRAW _IOW('U', 10, __u32) #define USB_RAW_IOCTL_EPS_INFO _IOR('U', 11, struct usb_raw_eps_info) #define USB_RAW_IOCTL_EP0_STALL _IO('U', 12) #define USB_RAW_IOCTL_EP_SET_HALT _IOW('U', 13, __u32) #define USB_RAW_IOCTL_EP_CLEAR_HALT _IOW('U', 14, __u32) #define USB_RAW_IOCTL_EP_SET_WEDGE _IOW('U', 15, __u32) static int usb_raw_open() { return open("/dev/raw-gadget", O_RDWR); } static int usb_raw_init(int fd, uint32_t speed, const char* driver, const char* device) { struct usb_raw_init arg; strncpy((char*)&arg.driver_name[0], driver, sizeof(arg.driver_name)); strncpy((char*)&arg.device_name[0], device, sizeof(arg.device_name)); arg.speed = speed; return ioctl(fd, USB_RAW_IOCTL_INIT, &arg); } static int usb_raw_run(int fd) { return ioctl(fd, USB_RAW_IOCTL_RUN, 0); } static int usb_raw_configure(int fd) { return ioctl(fd, USB_RAW_IOCTL_CONFIGURE, 0); } static int usb_raw_vbus_draw(int fd, uint32_t power) { return ioctl(fd, USB_RAW_IOCTL_VBUS_DRAW, power); } static int usb_raw_ep0_write(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP0_WRITE, io); } static int usb_raw_ep0_read(int fd, struct usb_raw_ep_io* io) { return ioctl(fd, USB_RAW_IOCTL_EP0_READ, io); } static int usb_raw_event_fetch(int fd, struct usb_raw_event* event) { return ioctl(fd, USB_RAW_IOCTL_EVENT_FETCH, event); } static int usb_raw_ep_enable(int fd, struct usb_endpoint_descriptor* desc) { return ioctl(fd, USB_RAW_IOCTL_EP_ENABLE, desc); } static int usb_raw_ep_disable(int fd, int ep) { return ioctl(fd, USB_RAW_IOCTL_EP_DISABLE, ep); } static int usb_raw_ep0_stall(int fd) { return ioctl(fd, USB_RAW_IOCTL_EP0_STALL, 0); } static int lookup_interface(int fd, uint8_t bInterfaceNumber, uint8_t bAlternateSetting) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return -1; for (int i = 0; i < index->ifaces_num; i++) { if (index->ifaces[i].bInterfaceNumber == bInterfaceNumber && index->ifaces[i].bAlternateSetting == bAlternateSetting) return i; } return -1; } #define USB_MAX_PACKET_SIZE 4096 struct usb_raw_control_event { struct usb_raw_event inner; struct usb_ctrlrequest ctrl; char data[USB_MAX_PACKET_SIZE]; }; struct usb_raw_ep_io_data { struct usb_raw_ep_io inner; char data[USB_MAX_PACKET_SIZE]; }; static void set_interface(int fd, int n) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return; if (index->iface_cur >= 0 && index->iface_cur < index->ifaces_num) { for (int ep = 0; ep < index->ifaces[index->iface_cur].eps_num; ep++) { int rv = usb_raw_ep_disable(fd, index->ifaces[index->iface_cur].eps[ep].handle); if (rv < 0) { } else { } } } if (n >= 0 && n < index->ifaces_num) { for (int ep = 0; ep < index->ifaces[n].eps_num; ep++) { int rv = usb_raw_ep_enable(fd, &index->ifaces[n].eps[ep].desc); if (rv < 0) { } else { index->ifaces[n].eps[ep].handle = rv; } } index->iface_cur = n; } } static int configure_device(int fd) { struct usb_device_index* index = lookup_usb_index(fd); if (!index) return -1; int rv = usb_raw_vbus_draw(fd, index->bMaxPower); if (rv < 0) { return rv; } rv = usb_raw_configure(fd); if (rv < 0) { return rv; } set_interface(fd, 0); return 0; } static volatile long syz_usb_connect_impl(uint64_t speed, uint64_t dev_len, const char* dev, const struct vusb_connect_descriptors* descs, lookup_connect_out_response_t lookup_connect_response_out) { if (!dev) { return -1; } int fd = usb_raw_open(); if (fd < 0) { return fd; } if (fd >= MAX_FDS) { close(fd); return -1; } struct usb_device_index* index = add_usb_index(fd, dev, dev_len); if (!index) { return -1; } char device[32]; sprintf(&device[0], "dummy_udc.%llu", procid); int rv = usb_raw_init(fd, speed, "dummy_udc", &device[0]); if (rv < 0) { return rv; } rv = usb_raw_run(fd); if (rv < 0) { return rv; } bool done = false; while (!done) { struct usb_raw_control_event event; event.inner.type = 0; event.inner.length = sizeof(event.ctrl); rv = usb_raw_event_fetch(fd, (struct usb_raw_event*)&event); if (rv < 0) { return rv; } if (event.inner.type != USB_RAW_EVENT_CONTROL) continue; char* response_data = NULL; uint32_t response_length = 0; struct usb_qualifier_descriptor qual; if (event.ctrl.bRequestType & USB_DIR_IN) { if (!lookup_connect_response_in(fd, descs, &event.ctrl, &qual, &response_data, &response_length)) { usb_raw_ep0_stall(fd); continue; } } else { if (!lookup_connect_response_out(fd, descs, &event.ctrl, &done)) { usb_raw_ep0_stall(fd); continue; } response_data = NULL; response_length = event.ctrl.wLength; } if ((event.ctrl.bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD && event.ctrl.bRequest == USB_REQ_SET_CONFIGURATION) { rv = configure_device(fd); if (rv < 0) { return rv; } } struct usb_raw_ep_io_data response; response.inner.ep = 0; response.inner.flags = 0; if (response_length > sizeof(response.data)) response_length = 0; if (event.ctrl.wLength < response_length) response_length = event.ctrl.wLength; response.inner.length = response_length; if (response_data) memcpy(&response.data[0], response_data, response_length); else memset(&response.data[0], 0, response_length); if (event.ctrl.bRequestType & USB_DIR_IN) { rv = usb_raw_ep0_write(fd, (struct usb_raw_ep_io*)&response); } else { rv = usb_raw_ep0_read(fd, (struct usb_raw_ep_io*)&response); } if (rv < 0) { return rv; } } sleep_ms(200); return fd; } static volatile long syz_usb_connect(volatile long a0, volatile long a1, volatile long a2, volatile long a3) { uint64_t speed = a0; uint64_t dev_len = a1; const char* dev = (const char*)a2; const struct vusb_connect_descriptors* descs = (const struct vusb_connect_descriptors*)a3; return syz_usb_connect_impl(speed, dev_len, dev, descs, &lookup_connect_response_out_generic); } static volatile long syz_usb_control_io(volatile long a0, volatile long a1, volatile long a2) { int fd = a0; const struct vusb_descriptors* descs = (const struct vusb_descriptors*)a1; const struct vusb_responses* resps = (const struct vusb_responses*)a2; struct usb_raw_control_event event; event.inner.type = 0; event.inner.length = USB_MAX_PACKET_SIZE; int rv = usb_raw_event_fetch(fd, (struct usb_raw_event*)&event); if (rv < 0) { return rv; } if (event.inner.type != USB_RAW_EVENT_CONTROL) { return -1; } char* response_data = NULL; uint32_t response_length = 0; if ((event.ctrl.bRequestType & USB_DIR_IN) && event.ctrl.wLength) { if (!lookup_control_response(descs, resps, &event.ctrl, &response_data, &response_length)) { usb_raw_ep0_stall(fd); return -1; } } else { if ((event.ctrl.bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD || event.ctrl.bRequest == USB_REQ_SET_INTERFACE) { int iface_num = event.ctrl.wIndex; int alt_set = event.ctrl.wValue; int iface_index = lookup_interface(fd, iface_num, alt_set); if (iface_index < 0) { } else { set_interface(fd, iface_index); } } response_length = event.ctrl.wLength; } struct usb_raw_ep_io_data response; response.inner.ep = 0; response.inner.flags = 0; if (response_length > sizeof(response.data)) response_length = 0; if (event.ctrl.wLength < response_length) response_length = event.ctrl.wLength; if ((event.ctrl.bRequestType & USB_DIR_IN) && !event.ctrl.wLength) { response_length = USB_MAX_PACKET_SIZE; } response.inner.length = response_length; if (response_data) memcpy(&response.data[0], response_data, response_length); else memset(&response.data[0], 0, response_length); if ((event.ctrl.bRequestType & USB_DIR_IN) && event.ctrl.wLength) { rv = usb_raw_ep0_write(fd, (struct usb_raw_ep_io*)&response); } else { rv = usb_raw_ep0_read(fd, (struct usb_raw_ep_io*)&response); } if (rv < 0) { return rv; } sleep_ms(200); return 0; } static void kill_and_wait(int pid, int* status) { kill(-pid, SIGKILL); kill(pid, SIGKILL); for (int i = 0; i < 100; i++) { if (waitpid(-1, status, WNOHANG | __WALL) == pid) return; usleep(1000); } DIR* dir = opendir("/sys/fs/fuse/connections"); if (dir) { for (;;) { struct dirent* ent = readdir(dir); if (!ent) break; if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0) continue; char abort[300]; snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort", ent->d_name); int fd = open(abort, O_WRONLY); if (fd == -1) { continue; } if (write(fd, abort, 1) < 0) { } close(fd); } closedir(dir); } else { } while (waitpid(-1, status, __WALL) != pid) { } } static void setup_test() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); setpgrp(); write_file("/proc/self/oom_score_adj", "1000"); } static void execute_one(void); #define WAIT_FLAGS __WALL static void loop(void) { int iter = 0; for (;; iter++) { int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { setup_test(); execute_one(); exit(0); } int status = 0; uint64_t start = current_time_ms(); for (;;) { sleep_ms(10); if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) break; if (current_time_ms() - start < 5000) continue; kill_and_wait(pid, &status); break; } } } uint64_t r[1] = {0xffffffffffffffff}; void execute_one(void) { intptr_t res = 0; if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {} *(uint8_t*)0x200000000040 = 0x12; *(uint8_t*)0x200000000041 = 1; *(uint16_t*)0x200000000042 = 0x200; *(uint8_t*)0x200000000044 = 0; *(uint8_t*)0x200000000045 = 0; *(uint8_t*)0x200000000046 = 0; *(uint8_t*)0x200000000047 = 8; *(uint16_t*)0x200000000048 = 0x1038; *(uint16_t*)0x20000000004a = 0x1410; *(uint16_t*)0x20000000004c = 0; *(uint8_t*)0x20000000004e = 0; *(uint8_t*)0x20000000004f = 0; *(uint8_t*)0x200000000050 = 0; *(uint8_t*)0x200000000051 = 1; *(uint8_t*)0x200000000052 = 9; *(uint8_t*)0x200000000053 = 2; *(uint16_t*)0x200000000054 = 0x24; *(uint8_t*)0x200000000056 = 1; *(uint8_t*)0x200000000057 = 0; *(uint8_t*)0x200000000058 = 0; *(uint8_t*)0x200000000059 = 0; *(uint8_t*)0x20000000005a = 2; *(uint8_t*)0x20000000005b = 9; *(uint8_t*)0x20000000005c = 4; *(uint8_t*)0x20000000005d = 0; *(uint8_t*)0x20000000005e = 0; *(uint8_t*)0x20000000005f = 1; *(uint8_t*)0x200000000060 = 3; *(uint8_t*)0x200000000061 = 0; *(uint8_t*)0x200000000062 = 1; *(uint8_t*)0x200000000063 = 0; *(uint8_t*)0x200000000064 = 9; *(uint8_t*)0x200000000065 = 0x21; *(uint16_t*)0x200000000066 = 8; *(uint8_t*)0x200000000068 = 0xfd; *(uint8_t*)0x200000000069 = 1; *(uint8_t*)0x20000000006a = 0x22; *(uint16_t*)0x20000000006b = 0x29; *(uint8_t*)0x20000000006d = 9; *(uint8_t*)0x20000000006e = 5; *(uint8_t*)0x20000000006f = 0x81; *(uint8_t*)0x200000000070 = 3; *(uint16_t*)0x200000000071 = 0; *(uint8_t*)0x200000000073 = 0; *(uint8_t*)0x200000000074 = 0; *(uint8_t*)0x200000000075 = 0; res = -1; res = syz_usb_connect(/*speed=*/0, /*dev_len=*/0x36, /*dev=*/0x200000000040, /*conn_descs=*/0); if (res != -1) r[0] = res; syz_usb_control_io(/*fd=*/r[0], /*descs=*/0, /*resps=*/0); syscall(__NR_prctl, /*option=*/0x26ul, /*arg=*/1ul, 0, 0, 0); *(uint32_t*)0x200000000000 = 0x2c; *(uint64_t*)0x200000000004 = 0x2000000000c0; memcpy((void*)0x2000000000c0, "\x40\x0c\x2a\x00\x00\x00\x2a\x22\x5f\xab\xe9\x36\x24\xdb\xb2\x2d\x8b\x5a\xc8\x50\x1c\x70\x40\xb2\xad\xcf\x1f\xb3\xab\x7e\xd1\x6b\xbb\xbf\xa2\xa0\x80\x2a\x9e\x3f\x78\x95\xe5\x90\x2e\xdd\xcb\x54", 48); *(uint64_t*)0x20000000000c = 0; *(uint64_t*)0x200000000014 = 0; *(uint64_t*)0x20000000001c = 0; *(uint64_t*)0x200000000024 = 0; syz_usb_control_io(/*fd=*/r[0], /*descs=*/0x200000000000, /*resps=*/0); } int main(void) { syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul, /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/7ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); const char* reason; (void)reason; loop(); return 0; } I hope it helps. Best regards Jianzhou Zhao Penglei Jiang

3 months, 3 weeks

1
0
0 0

Qualcomm Supply Chain - Sinldo Technology

by Alan Ye

[Sinldo Technology] Company Profile Hong Kong Sinldo Technology Co., Ltd. was established in 2009 and focuses on the supply chain of Qualcomm chips. As a leading supplier in the industry, We have established solid cooperative relationships with many internationally renowned manufacturers and are committed to providing customers with high-quality and reliable chip products. Business Scope： Import and distribution of Qualcomm chips Management and bidding for excess electronic components Provide high-quality customer service and technical support Mission Stable supply Vision Mutual benefit and Triumph Value Reduce Fees and increase efficiency Environment The company is located in the core business district, with convenient transportation, elegant environment and complete surrounding supporting facilities, which facilitates the travel and business exchanges of employees and customers. Milestones 2025 2020 2015 2009 It is expected to complete the upgrade strategic planning, further increase market share, and strive for sustainable development The company implemented a digital management system and began to actively develop online Deals channels The company has added multiple 4G Qualcomm chips and established partnerships with more OEM customers。 The company was formally established in Shenzhen and initially established cooperative relationships with global suppliers Company Environment Coastal Huanqing Building Office Area storehouse [Qualcomm]Company Spot [ WIFI6 - IPQ5018 Kits ] IPQ5018-0-MRQFN232-MT-01-0 QCN6102-0-DRQFN116-TR-01-0 QCA8337-AL3C Snapdragon SDM-450-B Kits SDM-450-B-792NSP-TR-01-0-AA WTR-2965-0-59F0WNSP-TR-07-1 PMI-8952-0-144WLNSP-TR-02-0-00 WCN-3680B-0-79BWLNSP-TR-05-1 PM-8953-0-187F0WNSP-TR-01-1 MDM9x07 Kits MDM-9607-0-328PSP-TR-00-0 MDM-9207-0-328PSP-TR-00-0 WTR-2965-0-59F0WNSP-TR-07-1 PMD-9607-0-94WLNSP-TR-04-2 [Sinldo Technology Co., Ltd.] Email：yesunjian888(a)gmail.com Skype：625285556(a)qq.com Address：Room 2305, Hai'an Huanqing Building, Futian Road, Futian District, Shenzhen Wechat Hit subscribe now to receive regular updates and our product’s latest features! Subscribe If you don't want to receive our emails, you can easily unsubscribe here. Alan Ye Purchasing Manager ：+86 136 0651 6680 QUALCOMM Supply chain : yesunjian888(a)gmail.com

3 months, 3 weeks

1
0
0 0

FAILED: patch "[PATCH] smb: client: Fix use-after-free in cifs_fill_dirent" failed to apply to 5.4-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y git checkout FETCH_HEAD git cherry-pick -x a7a8fe56e932a36f43e031b398aef92341bf5ea0 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025052437-platform-elastic-f5d2@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From a7a8fe56e932a36f43e031b398aef92341bf5ea0 Mon Sep 17 00:00:00 2001 From: Wang Zhaolong <wangzhaolong1(a)huawei.com> Date: Fri, 16 May 2025 17:12:55 +0800 Subject: [PATCH] smb: client: Fix use-after-free in cifs_fill_dirent There is a race condition in the readdir concurrency process, which may access the rsp buffer after it has been released, triggering the following KASAN warning. ================================================================== BUG: KASAN: slab-use-after-free in cifs_fill_dirent+0xb03/0xb60 [cifs] Read of size 4 at addr ffff8880099b819c by task a.out/342975 CPU: 2 UID: 0 PID: 342975 Comm: a.out Not tainted 6.15.0-rc6+ #240 PREEMPT(full) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.1-2.fc37 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0x53/0x70 print_report+0xce/0x640 kasan_report+0xb8/0xf0 cifs_fill_dirent+0xb03/0xb60 [cifs] cifs_readdir+0x12cb/0x3190 [cifs] iterate_dir+0x1a1/0x520 __x64_sys_getdents+0x134/0x220 do_syscall_64+0x4b/0x110 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7f996f64b9f9 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0d f7 c3 0c 00 f7 d8 64 89 8 RSP: 002b:00007f996f53de78 EFLAGS: 00000207 ORIG_RAX: 000000000000004e RAX: ffffffffffffffda RBX: 00007f996f53ecdc RCX: 00007f996f64b9f9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007f996f53dea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000207 R12: ffffffffffffff88 R13: 0000000000000000 R14: 00007ffc8cd9a500 R15: 00007f996f51e000 </TASK> Allocated by task 408: kasan_save_stack+0x20/0x40 kasan_save_track+0x14/0x30 __kasan_slab_alloc+0x6e/0x70 kmem_cache_alloc_noprof+0x117/0x3d0 mempool_alloc_noprof+0xf2/0x2c0 cifs_buf_get+0x36/0x80 [cifs] allocate_buffers+0x1d2/0x330 [cifs] cifs_demultiplex_thread+0x22b/0x2690 [cifs] kthread+0x394/0x720 ret_from_fork+0x34/0x70 ret_from_fork_asm+0x1a/0x30 Freed by task 342979: kasan_save_stack+0x20/0x40 kasan_save_track+0x14/0x30 kasan_save_free_info+0x3b/0x60 __kasan_slab_free+0x37/0x50 kmem_cache_free+0x2b8/0x500 cifs_buf_release+0x3c/0x70 [cifs] cifs_readdir+0x1c97/0x3190 [cifs] iterate_dir+0x1a1/0x520 __x64_sys_getdents64+0x134/0x220 do_syscall_64+0x4b/0x110 entry_SYSCALL_64_after_hwframe+0x76/0x7e The buggy address belongs to the object at ffff8880099b8000 which belongs to the cache cifs_request of size 16588 The buggy address is located 412 bytes inside of freed 16588-byte region [ffff8880099b8000, ffff8880099bc0cc) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x99b8 head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 anon flags: 0x80000000000040(head|node=0|zone=1) page_type: f5(slab) raw: 0080000000000040 ffff888001e03400 0000000000000000 dead000000000001 raw: 0000000000000000 0000000000010001 00000000f5000000 0000000000000000 head: 0080000000000040 ffff888001e03400 0000000000000000 dead000000000001 head: 0000000000000000 0000000000010001 00000000f5000000 0000000000000000 head: 0080000000000003 ffffea0000266e01 00000000ffffffff 00000000ffffffff head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8880099b8080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8880099b8100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff8880099b8180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff8880099b8200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8880099b8280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== POC is available in the link [1]. The problem triggering process is as follows: Process 1 Process 2 ----------------------------------------------------------------- cifs_readdir /* file->private_data == NULL */ initiate_cifs_search cifsFile = kzalloc(sizeof(struct cifsFileInfo), GFP_KERNEL); smb2_query_dir_first ->query_dir_first() SMB2_query_directory SMB2_query_directory_init cifs_send_recv smb2_parse_query_directory srch_inf->ntwrk_buf_start = (char *)rsp; srch_inf->srch_entries_start = (char *)rsp + ... srch_inf->last_entry = (char *)rsp + ... srch_inf->smallBuf = true; find_cifs_entry /* if (cfile->srch_inf.ntwrk_buf_start) */ cifs_small_buf_release(cfile->srch_inf // free cifs_readdir ->iterate_shared() /* file->private_data != NULL */ find_cifs_entry /* in while (...) loop */ smb2_query_dir_next ->query_dir_next() SMB2_query_directory SMB2_query_directory_init cifs_send_recv compound_send_recv smb_send_rqst __smb_send_rqst rc = -ERESTARTSYS; /* if (fatal_signal_pending()) */ goto out; return rc /* if (cfile->srch_inf.last_entry) */ cifs_save_resume_key() cifs_fill_dirent // UAF /* if (rc) */ return -ENOENT; Fix this by ensuring the return code is checked before using pointers from the srch_inf. Link: https://bugzilla.kernel.org/show_bug.cgi?id=220131 [1] Fixes: a364bc0b37f1 ("[CIFS] fix saving of resume key before CIFSFindNext") Cc: stable(a)vger.kernel.org Reviewed-by: Paulo Alcantara (Red Hat) <pc(a)manguebit.com> Signed-off-by: Wang Zhaolong <wangzhaolong1(a)huawei.com> Signed-off-by: Steve French <stfrench(a)microsoft.com> diff --git a/fs/smb/client/readdir.c b/fs/smb/client/readdir.c index 50f96259d9ad..67d7dd64b5e2 100644 --- a/fs/smb/client/readdir.c +++ b/fs/smb/client/readdir.c @@ -756,11 +756,11 @@ find_cifs_entry(const unsigned int xid, struct cifs_tcon *tcon, loff_t pos, rc = server->ops->query_dir_next(xid, tcon, &cfile->fid, search_flags, &cfile->srch_inf); + if (rc) + return -ENOENT; /* FindFirst/Next set last_entry to NULL on malformed reply */ if (cfile->srch_inf.last_entry) cifs_save_resume_key(cfile->srch_inf.last_entry, cfile); - if (rc) - return -ENOENT; } if (index_to_find < cfile->srch_inf.index_of_last_entry) { /* we found the buffer that contains the entry */

3 months, 3 weeks

2
2
0 0

FAILED: patch "[PATCH] smb: client: Fix use-after-free in cifs_fill_dirent" failed to apply to 5.10-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.10-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y git checkout FETCH_HEAD git cherry-pick -x a7a8fe56e932a36f43e031b398aef92341bf5ea0 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025052435-guts-tinfoil-42a7@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From a7a8fe56e932a36f43e031b398aef92341bf5ea0 Mon Sep 17 00:00:00 2001 From: Wang Zhaolong <wangzhaolong1(a)huawei.com> Date: Fri, 16 May 2025 17:12:55 +0800 Subject: [PATCH] smb: client: Fix use-after-free in cifs_fill_dirent There is a race condition in the readdir concurrency process, which may access the rsp buffer after it has been released, triggering the following KASAN warning. ================================================================== BUG: KASAN: slab-use-after-free in cifs_fill_dirent+0xb03/0xb60 [cifs] Read of size 4 at addr ffff8880099b819c by task a.out/342975 CPU: 2 UID: 0 PID: 342975 Comm: a.out Not tainted 6.15.0-rc6+ #240 PREEMPT(full) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.1-2.fc37 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0x53/0x70 print_report+0xce/0x640 kasan_report+0xb8/0xf0 cifs_fill_dirent+0xb03/0xb60 [cifs] cifs_readdir+0x12cb/0x3190 [cifs] iterate_dir+0x1a1/0x520 __x64_sys_getdents+0x134/0x220 do_syscall_64+0x4b/0x110 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7f996f64b9f9 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0d f7 c3 0c 00 f7 d8 64 89 8 RSP: 002b:00007f996f53de78 EFLAGS: 00000207 ORIG_RAX: 000000000000004e RAX: ffffffffffffffda RBX: 00007f996f53ecdc RCX: 00007f996f64b9f9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007f996f53dea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000207 R12: ffffffffffffff88 R13: 0000000000000000 R14: 00007ffc8cd9a500 R15: 00007f996f51e000 </TASK> Allocated by task 408: kasan_save_stack+0x20/0x40 kasan_save_track+0x14/0x30 __kasan_slab_alloc+0x6e/0x70 kmem_cache_alloc_noprof+0x117/0x3d0 mempool_alloc_noprof+0xf2/0x2c0 cifs_buf_get+0x36/0x80 [cifs] allocate_buffers+0x1d2/0x330 [cifs] cifs_demultiplex_thread+0x22b/0x2690 [cifs] kthread+0x394/0x720 ret_from_fork+0x34/0x70 ret_from_fork_asm+0x1a/0x30 Freed by task 342979: kasan_save_stack+0x20/0x40 kasan_save_track+0x14/0x30 kasan_save_free_info+0x3b/0x60 __kasan_slab_free+0x37/0x50 kmem_cache_free+0x2b8/0x500 cifs_buf_release+0x3c/0x70 [cifs] cifs_readdir+0x1c97/0x3190 [cifs] iterate_dir+0x1a1/0x520 __x64_sys_getdents64+0x134/0x220 do_syscall_64+0x4b/0x110 entry_SYSCALL_64_after_hwframe+0x76/0x7e The buggy address belongs to the object at ffff8880099b8000 which belongs to the cache cifs_request of size 16588 The buggy address is located 412 bytes inside of freed 16588-byte region [ffff8880099b8000, ffff8880099bc0cc) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x99b8 head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 anon flags: 0x80000000000040(head|node=0|zone=1) page_type: f5(slab) raw: 0080000000000040 ffff888001e03400 0000000000000000 dead000000000001 raw: 0000000000000000 0000000000010001 00000000f5000000 0000000000000000 head: 0080000000000040 ffff888001e03400 0000000000000000 dead000000000001 head: 0000000000000000 0000000000010001 00000000f5000000 0000000000000000 head: 0080000000000003 ffffea0000266e01 00000000ffffffff 00000000ffffffff head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8880099b8080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8880099b8100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff8880099b8180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff8880099b8200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8880099b8280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== POC is available in the link [1]. The problem triggering process is as follows: Process 1 Process 2 ----------------------------------------------------------------- cifs_readdir /* file->private_data == NULL */ initiate_cifs_search cifsFile = kzalloc(sizeof(struct cifsFileInfo), GFP_KERNEL); smb2_query_dir_first ->query_dir_first() SMB2_query_directory SMB2_query_directory_init cifs_send_recv smb2_parse_query_directory srch_inf->ntwrk_buf_start = (char *)rsp; srch_inf->srch_entries_start = (char *)rsp + ... srch_inf->last_entry = (char *)rsp + ... srch_inf->smallBuf = true; find_cifs_entry /* if (cfile->srch_inf.ntwrk_buf_start) */ cifs_small_buf_release(cfile->srch_inf // free cifs_readdir ->iterate_shared() /* file->private_data != NULL */ find_cifs_entry /* in while (...) loop */ smb2_query_dir_next ->query_dir_next() SMB2_query_directory SMB2_query_directory_init cifs_send_recv compound_send_recv smb_send_rqst __smb_send_rqst rc = -ERESTARTSYS; /* if (fatal_signal_pending()) */ goto out; return rc /* if (cfile->srch_inf.last_entry) */ cifs_save_resume_key() cifs_fill_dirent // UAF /* if (rc) */ return -ENOENT; Fix this by ensuring the return code is checked before using pointers from the srch_inf. Link: https://bugzilla.kernel.org/show_bug.cgi?id=220131 [1] Fixes: a364bc0b37f1 ("[CIFS] fix saving of resume key before CIFSFindNext") Cc: stable(a)vger.kernel.org Reviewed-by: Paulo Alcantara (Red Hat) <pc(a)manguebit.com> Signed-off-by: Wang Zhaolong <wangzhaolong1(a)huawei.com> Signed-off-by: Steve French <stfrench(a)microsoft.com> diff --git a/fs/smb/client/readdir.c b/fs/smb/client/readdir.c index 50f96259d9ad..67d7dd64b5e2 100644 --- a/fs/smb/client/readdir.c +++ b/fs/smb/client/readdir.c @@ -756,11 +756,11 @@ find_cifs_entry(const unsigned int xid, struct cifs_tcon *tcon, loff_t pos, rc = server->ops->query_dir_next(xid, tcon, &cfile->fid, search_flags, &cfile->srch_inf); + if (rc) + return -ENOENT; /* FindFirst/Next set last_entry to NULL on malformed reply */ if (cfile->srch_inf.last_entry) cifs_save_resume_key(cfile->srch_inf.last_entry, cfile); - if (rc) - return -ENOENT; } if (index_to_find < cfile->srch_inf.index_of_last_entry) { /* we found the buffer that contains the entry */

3 months, 3 weeks

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FAILED: patch "[PATCH] smb: client: Fix use-after-free in cifs_fill_dirent" failed to apply to 5.15-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y git checkout FETCH_HEAD git cherry-pick -x a7a8fe56e932a36f43e031b398aef92341bf5ea0 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025052432-deafening-parted-13e0@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From a7a8fe56e932a36f43e031b398aef92341bf5ea0 Mon Sep 17 00:00:00 2001 From: Wang Zhaolong <wangzhaolong1(a)huawei.com> Date: Fri, 16 May 2025 17:12:55 +0800 Subject: [PATCH] smb: client: Fix use-after-free in cifs_fill_dirent There is a race condition in the readdir concurrency process, which may access the rsp buffer after it has been released, triggering the following KASAN warning. ================================================================== BUG: KASAN: slab-use-after-free in cifs_fill_dirent+0xb03/0xb60 [cifs] Read of size 4 at addr ffff8880099b819c by task a.out/342975 CPU: 2 UID: 0 PID: 342975 Comm: a.out Not tainted 6.15.0-rc6+ #240 PREEMPT(full) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.1-2.fc37 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0x53/0x70 print_report+0xce/0x640 kasan_report+0xb8/0xf0 cifs_fill_dirent+0xb03/0xb60 [cifs] cifs_readdir+0x12cb/0x3190 [cifs] iterate_dir+0x1a1/0x520 __x64_sys_getdents+0x134/0x220 do_syscall_64+0x4b/0x110 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7f996f64b9f9 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0d f7 c3 0c 00 f7 d8 64 89 8 RSP: 002b:00007f996f53de78 EFLAGS: 00000207 ORIG_RAX: 000000000000004e RAX: ffffffffffffffda RBX: 00007f996f53ecdc RCX: 00007f996f64b9f9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007f996f53dea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000207 R12: ffffffffffffff88 R13: 0000000000000000 R14: 00007ffc8cd9a500 R15: 00007f996f51e000 </TASK> Allocated by task 408: kasan_save_stack+0x20/0x40 kasan_save_track+0x14/0x30 __kasan_slab_alloc+0x6e/0x70 kmem_cache_alloc_noprof+0x117/0x3d0 mempool_alloc_noprof+0xf2/0x2c0 cifs_buf_get+0x36/0x80 [cifs] allocate_buffers+0x1d2/0x330 [cifs] cifs_demultiplex_thread+0x22b/0x2690 [cifs] kthread+0x394/0x720 ret_from_fork+0x34/0x70 ret_from_fork_asm+0x1a/0x30 Freed by task 342979: kasan_save_stack+0x20/0x40 kasan_save_track+0x14/0x30 kasan_save_free_info+0x3b/0x60 __kasan_slab_free+0x37/0x50 kmem_cache_free+0x2b8/0x500 cifs_buf_release+0x3c/0x70 [cifs] cifs_readdir+0x1c97/0x3190 [cifs] iterate_dir+0x1a1/0x520 __x64_sys_getdents64+0x134/0x220 do_syscall_64+0x4b/0x110 entry_SYSCALL_64_after_hwframe+0x76/0x7e The buggy address belongs to the object at ffff8880099b8000 which belongs to the cache cifs_request of size 16588 The buggy address is located 412 bytes inside of freed 16588-byte region [ffff8880099b8000, ffff8880099bc0cc) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x99b8 head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 anon flags: 0x80000000000040(head|node=0|zone=1) page_type: f5(slab) raw: 0080000000000040 ffff888001e03400 0000000000000000 dead000000000001 raw: 0000000000000000 0000000000010001 00000000f5000000 0000000000000000 head: 0080000000000040 ffff888001e03400 0000000000000000 dead000000000001 head: 0000000000000000 0000000000010001 00000000f5000000 0000000000000000 head: 0080000000000003 ffffea0000266e01 00000000ffffffff 00000000ffffffff head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8880099b8080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8880099b8100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff8880099b8180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff8880099b8200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8880099b8280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== POC is available in the link [1]. The problem triggering process is as follows: Process 1 Process 2 ----------------------------------------------------------------- cifs_readdir /* file->private_data == NULL */ initiate_cifs_search cifsFile = kzalloc(sizeof(struct cifsFileInfo), GFP_KERNEL); smb2_query_dir_first ->query_dir_first() SMB2_query_directory SMB2_query_directory_init cifs_send_recv smb2_parse_query_directory srch_inf->ntwrk_buf_start = (char *)rsp; srch_inf->srch_entries_start = (char *)rsp + ... srch_inf->last_entry = (char *)rsp + ... srch_inf->smallBuf = true; find_cifs_entry /* if (cfile->srch_inf.ntwrk_buf_start) */ cifs_small_buf_release(cfile->srch_inf // free cifs_readdir ->iterate_shared() /* file->private_data != NULL */ find_cifs_entry /* in while (...) loop */ smb2_query_dir_next ->query_dir_next() SMB2_query_directory SMB2_query_directory_init cifs_send_recv compound_send_recv smb_send_rqst __smb_send_rqst rc = -ERESTARTSYS; /* if (fatal_signal_pending()) */ goto out; return rc /* if (cfile->srch_inf.last_entry) */ cifs_save_resume_key() cifs_fill_dirent // UAF /* if (rc) */ return -ENOENT; Fix this by ensuring the return code is checked before using pointers from the srch_inf. Link: https://bugzilla.kernel.org/show_bug.cgi?id=220131 [1] Fixes: a364bc0b37f1 ("[CIFS] fix saving of resume key before CIFSFindNext") Cc: stable(a)vger.kernel.org Reviewed-by: Paulo Alcantara (Red Hat) <pc(a)manguebit.com> Signed-off-by: Wang Zhaolong <wangzhaolong1(a)huawei.com> Signed-off-by: Steve French <stfrench(a)microsoft.com> diff --git a/fs/smb/client/readdir.c b/fs/smb/client/readdir.c index 50f96259d9ad..67d7dd64b5e2 100644 --- a/fs/smb/client/readdir.c +++ b/fs/smb/client/readdir.c @@ -756,11 +756,11 @@ find_cifs_entry(const unsigned int xid, struct cifs_tcon *tcon, loff_t pos, rc = server->ops->query_dir_next(xid, tcon, &cfile->fid, search_flags, &cfile->srch_inf); + if (rc) + return -ENOENT; /* FindFirst/Next set last_entry to NULL on malformed reply */ if (cfile->srch_inf.last_entry) cifs_save_resume_key(cfile->srch_inf.last_entry, cfile); - if (rc) - return -ENOENT; } if (index_to_find < cfile->srch_inf.index_of_last_entry) { /* we found the buffer that contains the entry */

3 months, 3 weeks

2
4
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6.12.30: black screen after waking up from hibernate; bisected

by Rainer Fiebig

With kernel 6.12.30 waking up from hibernate fails in a Ryzen 3 5600G system with the latest BIOS. At the end of the wake-up procedure the screen goes black instead of showing the log-in screen and the system becomes unresponsive. A hard reset is necessary. Seeing messages like the following in the system log, I suspected an amdgpu problem: May 23 19:09:30 LUX kernel: [16885.524496] amdgpu 0000:30:00.0: [drm] *ERROR* flip_done timed out May 23 19:09:30 LUX kernel: [16885.524501] amdgpu 0000:30:00.0: [drm] *ERROR* [CRTC:73:crtc-0] commit wait timed out I don't know whether those messages and the problem are really related but I bisected in 'drivers/gpu/drm/amd' anyway and the result was: > git bisect bad 25e07c8403f4daad35cffc18d96e32a80a2a3222 is the first bad commit commit 25e07c8403f4daad35cffc18d96e32a80a2a3222 (HEAD) Author: Alex Deucher <alexander.deucher(a)amd.com> Date: Thu May 1 13:46:46 2025 -0400 drm/amdgpu: fix pm notifier handling commit 4aaffc85751da5722e858e4333e8cf0aa4b6c78f upstream. Set the s3/s0ix and s4 flags in the pm notifier so that we can skip the resource evictions properly in pm prepare based on whether we are suspending or hibernating. Drop the eviction as processes are not frozen at this time, we we can end up getting stuck trying to evict VRAM while applications continue to submit work which causes the buffers to get pulled back into VRAM. HTH. Thanks. Rainer -- The truth always turns out to be simpler than you thought. Richard Feynman

3 months, 3 weeks

3
5
0 0

[PATCH] rtc: pcf2127: add missing semicolon after statement

by Hugo Villeneuve

From: Hugo Villeneuve <hvilleneuve(a)dimonoff.com> Replace comma with semicolon at the end of the statement when setting config.max_register. Fixes: fd28ceb4603f ("rtc: pcf2127: add variant-specific configuration structure") Cc: stable(a)vger.kernel.org Cc: Elena Popa <elena.popa(a)nxp.com> Signed-off-by: Hugo Villeneuve <hvilleneuve(a)dimonoff.com> --- drivers/rtc/rtc-pcf2127.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/rtc/rtc-pcf2127.c b/drivers/rtc/rtc-pcf2127.c index 31c7dca8f469..2bfebe3eba0c 100644 --- a/drivers/rtc/rtc-pcf2127.c +++ b/drivers/rtc/rtc-pcf2127.c @@ -1538,7 +1538,7 @@ static int pcf2127_spi_probe(struct spi_device *spi) variant = &pcf21xx_cfg[type]; } - config.max_register = variant->max_register, + config.max_register = variant->max_register; regmap = devm_regmap_init_spi(spi, &config); if (IS_ERR(regmap)) { base-commit: c7622a4e44d9d008e0e5edcc46c71854c50cf4a8 -- 2.39.5

3 months, 3 weeks

1
0
0 0

+ mm-fix-uprobe-pte-be-overwritten-when-expanding-vma.patch added to mm-unstable branch

by Andrew Morton

The patch titled Subject: mm: fix uprobe pte be overwritten when expanding vma has been added to the -mm mm-unstable branch. Its filename is mm-fix-uprobe-pte-be-overwritten-when-expanding-vma.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patche… This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Pu Lehui <pulehui(a)huawei.com> Subject: mm: fix uprobe pte be overwritten when expanding vma Date: Thu, 29 May 2025 15:56:47 +0000 Patch series "Fix uprobe pte be overwritten when expanding vma". This patch (of 4): We encountered a BUG alert triggered by Syzkaller as follows: BUG: Bad rss-counter state mm:00000000b4a60fca type:MM_ANONPAGES val:1 And we can reproduce it with the following steps: 1. register uprobe on file at zero offset 2. mmap the file at zero offset: addr1 = mmap(NULL, 2 * 4096, PROT_NONE, MAP_PRIVATE, fd, 0); 3. mremap part of vma1 to new vma2: addr2 = mremap(addr1, 4096, 2 * 4096, MREMAP_MAYMOVE); 4. mremap back to orig addr1: mremap(addr2, 4096, 4096, MREMAP_MAYMOVE | MREMAP_FIXED, addr1); In step 3, the vma1 range [addr1, addr1 + 4096] will be remap to new vma2 with range [addr2, addr2 + 8192], and remap uprobe anon page from the vma1 to vma2, then unmap the vma1 range [addr1, addr1 + 4096]. In step 4, the vma2 range [addr2, addr2 + 4096] will be remap back to the addr range [addr1, addr1 + 4096]. Since the addr range [addr1 + 4096, addr1 + 8192] still maps the file, it will take vma_merge_new_range to expand the range, and then do uprobe_mmap in vma_complete. Since the merged vma pgoff is also zero offset, it will install uprobe anon page to the merged vma. However, the upcomming move_page_tables step, which use set_pte_at to remap the vma2 uprobe pte to the merged vma, will overwrite the newly uprobe pte in the merged vma, and lead that pte to be orphan. Since the uprobe pte will be remapped to the merged vma, we can remove the unnecessary uprobe_mmap upon merged vma. This problem was first found in linux-6.6.y and also exists in the community syzkaller: https://lore.kernel.org/all/000000000000ada39605a5e71711@google.com/T/ Link: https://lkml.kernel.org/r/20250529155650.4017699-1-pulehui@huaweicloud.com Link: https://lkml.kernel.org/r/20250529155650.4017699-2-pulehui@huaweicloud.com Fixes: 2b1444983508 ("uprobes, mm, x86: Add the ability to install and remove uprobes breakpoints") Signed-off-by: Pu Lehui <pulehui(a)huawei.com> Suggested-by: Lorenzo Stoakes <lorenzo.stoakes(a)oracle.com> Cc: Jann Horn <jannh(a)google.com> Cc: Liam Howlett <liam.howlett(a)oracle.com> Cc: "Masami Hiramatsu (Google)" <mhiramat(a)kernel.org> Cc: Oleg Nesterov <oleg(a)redhat.com> Cc: Peter Zijlstra <peterz(a)infradead.org> Cc: Vlastimil Babka <vbabka(a)suse.cz> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- mm/vma.c | 20 +++++++++++++++++--- mm/vma.h | 7 +++++++ 2 files changed, 24 insertions(+), 3 deletions(-) --- a/mm/vma.c~mm-fix-uprobe-pte-be-overwritten-when-expanding-vma +++ a/mm/vma.c @@ -169,6 +169,9 @@ static void init_multi_vma_prep(struct v vp->file = vma->vm_file; if (vp->file) vp->mapping = vma->vm_file->f_mapping; + + if (vmg && vmg->skip_vma_uprobe) + vp->skip_vma_uprobe = true; } /* @@ -358,10 +361,13 @@ static void vma_complete(struct vma_prep if (vp->file) { i_mmap_unlock_write(vp->mapping); - uprobe_mmap(vp->vma); - if (vp->adj_next) - uprobe_mmap(vp->adj_next); + if (!vp->skip_vma_uprobe) { + uprobe_mmap(vp->vma); + + if (vp->adj_next) + uprobe_mmap(vp->adj_next); + } } if (vp->remove) { @@ -1830,6 +1836,14 @@ struct vm_area_struct *copy_vma(struct v faulted_in_anon_vma = false; } + /* + * If the VMA we are copying might contain a uprobe PTE, ensure + * that we do not establish one upon merge. Otherwise, when mremap() + * moves page tables, it will orphan the newly created PTE. + */ + if (vma->vm_file) + vmg.skip_vma_uprobe = true; + new_vma = find_vma_prev(mm, addr, &vmg.prev); if (new_vma && new_vma->vm_start < addr + len) return NULL; /* should never get here */ --- a/mm/vma.h~mm-fix-uprobe-pte-be-overwritten-when-expanding-vma +++ a/mm/vma.h @@ -19,6 +19,8 @@ struct vma_prepare { struct vm_area_struct *insert; struct vm_area_struct *remove; struct vm_area_struct *remove2; + + bool skip_vma_uprobe :1; }; struct unlink_vma_file_batch { @@ -120,6 +122,11 @@ struct vma_merge_struct { */ bool give_up_on_oom :1; + /* + * If set, skip uprobe_mmap upon merged vma. + */ + bool skip_vma_uprobe :1; + /* Internal flags set during merge process: */ /* _ Patches currently in -mm which might be from pulehui(a)huawei.com are mm-fix-uprobe-pte-be-overwritten-when-expanding-vma.patch mm-expose-abnormal-new_pte-during-move_ptes.patch selftests-mm-extract-read_sysfs-and-write_sysfs-into-vm_util.patch selftests-mm-add-test-about-uprobe-pte-be-orphan-during-vma-merge.patch

3 months, 3 weeks

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[PATCH] x86/mm: Fix paging-structure cache flush on kernel table freeing

by Jann Horn

There are several issues in pud_free_pmd_page() and pmd_free_pte_page(), which are used by vmalloc: 1. flush_tlb_kernel_range() does not flush paging-structure caches for inactive PCIDs, but we're using it when freeing kernel page tables. 2. flush_tlb_kernel_range() only flushes paging-structure cache entries that intersect with the flush range, and pud_free_pmd_page() passes in the first PAGE_SIZE bytes of the area covered by the PMD table; but pud_free_pmd_page() is actually designed to also remove PTE tables that were installed in the PMD table, so we need to also flush those. 3. [theoretical issue] invlpgb_kernel_range_flush() expects an exclusive range, it does: `nr = (info->end - addr) >> PAGE_SHIFT;` But pmd_free_pte_page() and pud_free_pmd_page() provide inclusive ranges (`addr, addr + PAGE_SIZE-1`). To fix it: 1. Add a new helper flush_tlb_kernel_pgtable_range() for flushing paging structure caches for kernel page tables, and use that. 2. Flush PUD_SIZE instead of PAGE_SIZE in pud_free_pmd_page(). 3. Remove `-1` in end address calculations. Note that since I'm not touching invlpgb_kernel_range_flush() or invlpgb_flush_addr_nosync() in this patch, the flush on PMD table deletion with INVLPGB might be a bit slow due to using PTE_STRIDE instead of PMD_STRIDE. I don't think that matters. Backport notes: Kernels before 6.16 don't have invlpgb_kernel_range_flush(); for them, kernel_tlb_flush_pgtable() should just unconditionally call flush_tlb_all(). I am marking this as fixing commit 28ee90fe6048 ("x86/mm: implement free pmd/pte page interfaces"); that is technically incorrect, since back then no paging-structure cache invalidations were performed at all, but probably makes the most sense here. Cc: stable(a)vger.kernel.org Fixes: 28ee90fe6048 ("x86/mm: implement free pmd/pte page interfaces") Signed-off-by: Jann Horn <jannh(a)google.com> --- arch/x86/include/asm/tlb.h | 4 ++++ arch/x86/include/asm/tlbflush.h | 1 + arch/x86/mm/pgtable.c | 13 +++++++++---- arch/x86/mm/tlb.c | 37 +++++++++++++++++++++++++++++++++++++ 4 files changed, 51 insertions(+), 4 deletions(-) diff --git a/arch/x86/include/asm/tlb.h b/arch/x86/include/asm/tlb.h index 866ea78ba156..56a4b93a0742 100644 --- a/arch/x86/include/asm/tlb.h +++ b/arch/x86/include/asm/tlb.h @@ -153,6 +153,10 @@ static inline void invlpgb_flush_all(void) /* Flush addr, including globals, for all PCIDs. */ static inline void invlpgb_flush_addr_nosync(unsigned long addr, u16 nr) { + /* + * Don't set INVLPGB_FLAG_FINAL_ONLY here without adjusting + * kernel_tlb_flush_pgtable(). + */ __invlpgb(0, 0, addr, nr, PTE_STRIDE, INVLPGB_FLAG_INCLUDE_GLOBAL); } diff --git a/arch/x86/include/asm/tlbflush.h b/arch/x86/include/asm/tlbflush.h index e9b81876ebe4..06a4a2b7a9f5 100644 --- a/arch/x86/include/asm/tlbflush.h +++ b/arch/x86/include/asm/tlbflush.h @@ -318,6 +318,7 @@ extern void flush_tlb_mm_range(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned int stride_shift, bool freed_tables); extern void flush_tlb_kernel_range(unsigned long start, unsigned long end); +void flush_tlb_kernel_pgtable_range(unsigned long start, unsigned long end); static inline void flush_tlb_page(struct vm_area_struct *vma, unsigned long a) { diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c index 62777ba4de1a..0779ed02226c 100644 --- a/arch/x86/mm/pgtable.c +++ b/arch/x86/mm/pgtable.c @@ -745,8 +745,13 @@ int pud_free_pmd_page(pud_t *pud, unsigned long addr) pud_clear(pud); - /* INVLPG to clear all paging-structure caches */ - flush_tlb_kernel_range(addr, addr + PAGE_SIZE-1); + /* + * Clear paging-structure caches. + * Note that since this function can remove a PMD table together with the + * PTE tables it points to, we can't just flush the first PAGE_SIZE, we + * must flush PUD_SIZE! + */ + flush_tlb_kernel_pgtable_range(addr, addr + PUD_SIZE); for (i = 0; i < PTRS_PER_PMD; i++) { if (!pmd_none(pmd_sv[i])) { @@ -778,8 +783,8 @@ int pmd_free_pte_page(pmd_t *pmd, unsigned long addr) pte = (pte_t *)pmd_page_vaddr(*pmd); pmd_clear(pmd); - /* INVLPG to clear all paging-structure caches */ - flush_tlb_kernel_range(addr, addr + PAGE_SIZE-1); + /* clear paging-structure caches */ + flush_tlb_kernel_pgtable_range(addr, addr + PAGE_SIZE); free_page((unsigned long)pte); diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c index 39f80111e6f1..26b78451a7ed 100644 --- a/arch/x86/mm/tlb.c +++ b/arch/x86/mm/tlb.c @@ -1525,6 +1525,22 @@ static void kernel_tlb_flush_range(struct flush_tlb_info *info) on_each_cpu(do_kernel_range_flush, info, 1); } +static void kernel_tlb_flush_pgtable(struct flush_tlb_info *info) +{ + /* + * The special thing about removing kernel page tables is that we can't + * use a flush that just removes global TLB entries; we need one that + * flushes paging structure caches across all PCIDs. + * With INVLPGB, that's explicitly supported. + * Otherwise, there's no good way (INVLPG and INVPCID can't specifically + * target one address across all PCIDs), just throw everything away. + */ + if (cpu_feature_enabled(X86_FEATURE_INVLPGB)) + invlpgb_kernel_range_flush(info); + else + flush_tlb_all(); +} + void flush_tlb_kernel_range(unsigned long start, unsigned long end) { struct flush_tlb_info *info; @@ -1542,6 +1558,27 @@ void flush_tlb_kernel_range(unsigned long start, unsigned long end) put_flush_tlb_info(); } +/* + * Flush paging-structure cache entries for page tables covering the specified + * range and synchronize with concurrent hardware page table walks, in + * preparation for freeing page tables in the region. + * This must not be used for flushing translations to data pages. + */ +void flush_tlb_kernel_pgtable_range(unsigned long start, unsigned long end) +{ + struct flush_tlb_info *info; + + /* We don't synchronize against GUP-fast. */ + VM_WARN_ON(start < TASK_SIZE_MAX); + + guard(preempt)(); + + info = get_flush_tlb_info(NULL, start, end, PMD_SHIFT, true, + TLB_GENERATION_INVALID); + kernel_tlb_flush_pgtable(info); + put_flush_tlb_info(); +} + /* * This can be used from process context to figure out what the value of * CR3 is without needing to do a (slow) __read_cr3(). --- base-commit: b1456f6dc167f7f101746e495bede2bac3d0e19f change-id: 20250528-x86-fix-vmap-pt-del-flush-f9fa4f287c93 -- Jann Horn <jannh(a)google.com>

3 months, 3 weeks

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[PATCH v6.6 00/26] af_unix: Align with upstream to avoid a potential UAF

by Lee Jones

From: Lee Jones <joneslee(a)google.com> This is the second attempt at achieving the same goal. This time, the submission avoids forking the current code base, ensuring it remains easier to maintain over time. The set has been tested using the SCM_RIGHTS test suite [1] using QEMU and has been seen to successfully mitigate a UAF on on a top tier handset. RESULTS: TAP version 13 1..20 # Starting 20 tests from 5 test cases. # RUN scm_rights.dgram.self_ref ... # OK scm_rights.dgram.self_ref ok 1 scm_rights.dgram.self_ref # RUN scm_rights.dgram.triangle ... # OK scm_rights.dgram.triangle ok 2 scm_rights.dgram.triangle # RUN scm_rights.dgram.cross_edge ... # OK scm_rights.dgram.cross_edge ok 3 scm_rights.dgram.cross_edge # RUN scm_rights.dgram.backtrack_from_scc ... # OK scm_rights.dgram.backtrack_from_scc ok 4 scm_rights.dgram.backtrack_from_scc # RUN scm_rights.stream.self_ref ... # OK scm_rights.stream.self_ref ok 5 scm_rights.stream.self_ref # RUN scm_rights.stream.triangle ... # OK scm_rights.stream.triangle ok 6 scm_rights.stream.triangle # RUN scm_rights.stream.cross_edge ... # OK scm_rights.stream.cross_edge ok 7 scm_rights.stream.cross_edge # RUN scm_rights.stream.backtrack_from_scc ... # OK scm_rights.stream.backtrack_from_scc ok 8 scm_rights.stream.backtrack_from_scc # RUN scm_rights.stream_oob.self_ref ... # OK scm_rights.stream_oob.self_ref ok 9 scm_rights.stream_oob.self_ref # RUN scm_rights.stream_oob.triangle ... # OK scm_rights.stream_oob.triangle ok 10 scm_rights.stream_oob.triangle # RUN scm_rights.stream_oob.cross_edge ... # OK scm_rights.stream_oob.cross_edge ok 11 scm_rights.stream_oob.cross_edge # RUN scm_rights.stream_oob.backtrack_from_scc ... # OK scm_rights.stream_oob.backtrack_from_scc ok 12 scm_rights.stream_oob.backtrack_from_scc # RUN scm_rights.stream_listener.self_ref ... # OK scm_rights.stream_listener.self_ref ok 13 scm_rights.stream_listener.self_ref # RUN scm_rights.stream_listener.triangle ... # OK scm_rights.stream_listener.triangle ok 14 scm_rights.stream_listener.triangle # RUN scm_rights.stream_listener.cross_edge ... # OK scm_rights.stream_listener.cross_edge ok 15 scm_rights.stream_listener.cross_edge # RUN scm_rights.stream_listener.backtrack_from_scc ... # OK scm_rights.stream_listener.backtrack_from_scc ok 16 scm_rights.stream_listener.backtrack_from_scc # RUN scm_rights.stream_listener_oob.self_ref ... # OK scm_rights.stream_listener_oob.self_ref ok 17 scm_rights.stream_listener_oob.self_ref # RUN scm_rights.stream_listener_oob.triangle ... # OK scm_rights.stream_listener_oob.triangle ok 18 scm_rights.stream_listener_oob.triangle # RUN scm_rights.stream_listener_oob.cross_edge ... # OK scm_rights.stream_listener_oob.cross_edge ok 19 scm_rights.stream_listener_oob.cross_edge # RUN scm_rights.stream_listener_oob.backtrack_from_scc ... # OK scm_rights.stream_listener_oob.backtrack_from_scc ok 20 scm_rights.stream_listener_oob.backtrack_from_scc # PASSED: 20 / 20 tests passed. # Totals: pass:20 fail:0 xfail:0 xpass:0 skip:0 error:0 [0] https://lore.kernel.org/all/20250304030149.82265-1-kuniyu@amazon.com/ [1] https://lore.kernel.org/all/20240325202425.60930-16-kuniyu@amazon.com/ Kuniyuki Iwashima (24): af_unix: Return struct unix_sock from unix_get_socket(). af_unix: Run GC on only one CPU. af_unix: Try to run GC async. af_unix: Replace BUG_ON() with WARN_ON_ONCE(). af_unix: Remove io_uring code for GC. af_unix: Remove CONFIG_UNIX_SCM. af_unix: Allocate struct unix_vertex for each inflight AF_UNIX fd. af_unix: Allocate struct unix_edge for each inflight AF_UNIX fd. af_unix: Link struct unix_edge when queuing skb. af_unix: Bulk update unix_tot_inflight/unix_inflight when queuing skb. af_unix: Iterate all vertices by DFS. af_unix: Detect Strongly Connected Components. af_unix: Save listener for embryo socket. af_unix: Fix up unix_edge.successor for embryo socket. af_unix: Save O(n) setup of Tarjan's algo. af_unix: Skip GC if no cycle exists. af_unix: Avoid Tarjan's algorithm if unnecessary. af_unix: Assign a unique index to SCC. af_unix: Detect dead SCC. af_unix: Replace garbage collection algorithm. af_unix: Remove lock dance in unix_peek_fds(). af_unix: Try not to hold unix_gc_lock during accept(). af_unix: Don't access successor in unix_del_edges() during GC. af_unix: Add dead flag to struct scm_fp_list. Michal Luczaj (1): af_unix: Fix garbage collection of embryos carrying OOB with SCM_RIGHTS Shigeru Yoshida (1): af_unix: Fix uninit-value in __unix_walk_scc() include/net/af_unix.h | 49 ++- include/net/scm.h | 11 + net/Makefile | 2 +- net/core/scm.c | 17 ++ net/unix/Kconfig | 5 - net/unix/Makefile | 2 - net/unix/af_unix.c | 120 +++++--- net/unix/garbage.c | 691 +++++++++++++++++++++++++++++------------- net/unix/scm.c | 161 ---------- net/unix/scm.h | 10 - 10 files changed, 617 insertions(+), 451 deletions(-) delete mode 100644 net/unix/scm.c delete mode 100644 net/unix/scm.h -- 2.49.0.1112.g889b7c5bd8-goog

3 months, 3 weeks

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Backports of 2e43ae7dd71cd9bb0d1bce1d3306bf77523feb81 for 5.15 and older

by Nathan Chancellor

Hi Greg and Sasha, Please find attached backports of commit 2e43ae7dd71c ("drm/i915/gvt: fix unterminated-string-initialization warning") to address an instance of -Wunterminated-string-initialization that appears in the i915 driver with GCC 15 and Clang 21 due to its use of -Wextra. Please let me know if there are any issues. Cheers, Nathan

3 months, 3 weeks

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[PATCH 6.1.y] selftests/vm: fix split huge page tests

by wndgwang4

From: Zi Yan <ziy(a)nvidia.com> [ upstream commit dd63bd7df41a8f9393a2e3ff9157a441c08eb996 ] Fix two inputs to check_anon_huge() and one if condition, so the tests work as expected. Steps to reproduce the issue. make headers make -C tools/testing/selftests/vm Before patching:test fails with a non-zero exit code ~/linux$ sudo tools/testing/selftests/vm/split_huge_page_test | echo 0 2 ~/linux$ sudo tools/testing/selftests/vm/split_huge_page_test No THP is allocated After patching: ~/linux$ sudo tools/testing/selftests/vm/split_huge_page_test | echo 0 0 ~/linux$ sudo tools/testing/selftests/vm/split_huge_page_test Split huge pages successful ... Link: https://lkml.kernel.org/r/20230306160907.16804-1-zi.yan@sent.com Fixes: c07c343cda8e ("selftests/vm: dedup THP helpers") Cc: stable(a)vger.kernel.org Signed-off-by: Zi Yan <ziy(a)nvidia.com> Reviewed-by: Zach O'Keefe <zokeefe(a)google.com> Tested-by: Zach O'Keefe <zokeefe(a)google.com> Acked-by: David Hildenbrand <david(a)redhat.com> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Signed-off-by: wndgwang4 <guangming.wang(a)windriver.com> --- tools/testing/selftests/vm/split_huge_page_test.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/vm/split_huge_page_test.c b/tools/testing/selftests/vm/split_huge_page_test.c index 76e1c36dd..b8558c7f1 100644 --- a/tools/testing/selftests/vm/split_huge_page_test.c +++ b/tools/testing/selftests/vm/split_huge_page_test.c @@ -106,7 +106,7 @@ void split_pmd_thp(void) for (i = 0; i < len; i++) one_page[i] = (char)i; - if (!check_huge_anon(one_page, 1, pmd_pagesize)) { + if (!check_huge_anon(one_page, 4, pmd_pagesize)) { printf("No THP is allocated\n"); exit(EXIT_FAILURE); } @@ -122,7 +122,7 @@ void split_pmd_thp(void) } - if (check_huge_anon(one_page, 0, pmd_pagesize)) { + if (!check_huge_anon(one_page, 0, pmd_pagesize)) { printf("Still AnonHugePages not split\n"); exit(EXIT_FAILURE); } @@ -169,7 +169,7 @@ void split_pte_mapped_thp(void) for (i = 0; i < len; i++) one_page[i] = (char)i; - if (!check_huge_anon(one_page, 1, pmd_pagesize)) { + if (!check_huge_anon(one_page, 4, pmd_pagesize)) { printf("No THP is allocated\n"); exit(EXIT_FAILURE); } -- 2.34.1

3 months, 3 weeks

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[PATCH net] can: kvaser_pciefd: refine error prone echo_skb_max handling logic

by Marc Kleine-Budde

From: Fedor Pchelkin <pchelkin(a)ispras.ru> echo_skb_max should define the supported upper limit of echo_skb[] allocated inside the netdevice's priv. The corresponding size value provided by this driver to alloc_candev() is KVASER_PCIEFD_CAN_TX_MAX_COUNT which is 17. But later echo_skb_max is rounded up to the nearest power of two (for the max case, that would be 32) and the tx/ack indices calculated further during tx/rx may exceed the upper array boundary. Kasan reported this for the ack case inside kvaser_pciefd_handle_ack_packet(), though the xmit function has actually caught the same thing earlier. BUG: KASAN: slab-out-of-bounds in kvaser_pciefd_handle_ack_packet+0x2d7/0x92a drivers/net/can/kvaser_pciefd.c:1528 Read of size 8 at addr ffff888105e4f078 by task swapper/4/0 CPU: 4 UID: 0 PID: 0 Comm: swapper/4 Not tainted 6.15.0 #12 PREEMPT(voluntary) Call Trace: <IRQ> dump_stack_lvl lib/dump_stack.c:122 print_report mm/kasan/report.c:521 kasan_report mm/kasan/report.c:634 kvaser_pciefd_handle_ack_packet drivers/net/can/kvaser_pciefd.c:1528 kvaser_pciefd_read_packet drivers/net/can/kvaser_pciefd.c:1605 kvaser_pciefd_read_buffer drivers/net/can/kvaser_pciefd.c:1656 kvaser_pciefd_receive_irq drivers/net/can/kvaser_pciefd.c:1684 kvaser_pciefd_irq_handler drivers/net/can/kvaser_pciefd.c:1733 __handle_irq_event_percpu kernel/irq/handle.c:158 handle_irq_event kernel/irq/handle.c:210 handle_edge_irq kernel/irq/chip.c:833 __common_interrupt arch/x86/kernel/irq.c:296 common_interrupt arch/x86/kernel/irq.c:286 </IRQ> Tx max count definitely matters for kvaser_pciefd_tx_avail(), but for seq numbers' generation that's not the case - we're free to calculate them as would be more convenient, not taking tx max count into account. The only downside is that the size of echo_skb[] should correspond to the max seq number (not tx max count), so in some situations a bit more memory would be consumed than could be. Thus make the size of the underlying echo_skb[] sufficient for the rounded max tx value. Found by Linux Verification Center (linuxtesting.org) with Syzkaller. Fixes: 8256e0ca6010 ("can: kvaser_pciefd: Fix echo_skb race") Cc: stable(a)vger.kernel.org Signed-off-by: Fedor Pchelkin <pchelkin(a)ispras.ru> Link: https://patch.msgid.link/20250528192713.63894-1-pchelkin@ispras.ru Signed-off-by: Marc Kleine-Budde <mkl(a)pengutronix.de> --- drivers/net/can/kvaser_pciefd.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/can/kvaser_pciefd.c b/drivers/net/can/kvaser_pciefd.c index 7d3066691d5d..52301511ed1b 100644 --- a/drivers/net/can/kvaser_pciefd.c +++ b/drivers/net/can/kvaser_pciefd.c @@ -966,7 +966,7 @@ static int kvaser_pciefd_setup_can_ctrls(struct kvaser_pciefd *pcie) u32 status, tx_nr_packets_max; netdev = alloc_candev(sizeof(struct kvaser_pciefd_can), - KVASER_PCIEFD_CAN_TX_MAX_COUNT); + roundup_pow_of_two(KVASER_PCIEFD_CAN_TX_MAX_COUNT)); if (!netdev) return -ENOMEM; @@ -995,7 +995,6 @@ static int kvaser_pciefd_setup_can_ctrls(struct kvaser_pciefd *pcie) can->tx_max_count = min(KVASER_PCIEFD_CAN_TX_MAX_COUNT, tx_nr_packets_max - 1); can->can.clock.freq = pcie->freq; - can->can.echo_skb_max = roundup_pow_of_two(can->tx_max_count); spin_lock_init(&can->lock); can->can.bittiming_const = &kvaser_pciefd_bittiming_const; base-commit: 271683bb2cf32e5126c592b5d5e6a756fa374fd9 -- 2.47.2

3 months, 3 weeks

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[PATCH] driver: net: ethernet: mtk_star_emac: fix suspend/resume issue

by Macpaul Lin

From: Yanqing Wang <ot_yanqing.wang(a)mediatek.com> Identify the cause of the suspend/resume hang: netif_carrier_off() is called during link state changes and becomes stuck while executing linkwatch_work(). To resolve this issue, call netif_device_detach() during the Ethernet suspend process to temporarily detach the network device from the kernel and prevent the suspend/resume hang. Fixes: 8c7bd5a454ff ("net: ethernet: mtk-star-emac: new driver") Signed-off-by: Yanqing Wang <ot_yanqing.wang(a)mediatek.com> Signed-off-by: Macpaul Lin <macpaul.lin(a)mediatek.com> Signed-off-by: Biao Huang <biao.huang(a)mediatek.com> --- drivers/net/ethernet/mediatek/mtk_star_emac.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/ethernet/mediatek/mtk_star_emac.c b/drivers/net/ethernet/mediatek/mtk_star_emac.c index b175119a6a7d..b83886a41121 100644 --- a/drivers/net/ethernet/mediatek/mtk_star_emac.c +++ b/drivers/net/ethernet/mediatek/mtk_star_emac.c @@ -1463,6 +1463,8 @@ static __maybe_unused int mtk_star_suspend(struct device *dev) if (netif_running(ndev)) mtk_star_disable(ndev); + netif_device_detach(ndev); + clk_bulk_disable_unprepare(MTK_STAR_NCLKS, priv->clks); return 0; @@ -1487,6 +1489,8 @@ static __maybe_unused int mtk_star_resume(struct device *dev) clk_bulk_disable_unprepare(MTK_STAR_NCLKS, priv->clks); } + netif_device_attach(ndev); + return ret; } -- 2.45.2

3 months, 3 weeks

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Re: [PATCH v3] virtio_blk: Fix disk deletion hang on device surprise removal

by Michael S. Tsirkin

On Thu, May 29, 2025 at 06:19:31AM +0000, Parav Pandit wrote: > When the PCI device is surprise removed, requests may not complete > the device as the VQ is marked as broken. Due to this, the disk > deletion hangs. > > Fix it by aborting the requests when the VQ is broken. > > With this fix now fio completes swiftly. > An alternative of IO timeout has been considered, however > when the driver knows about unresponsive block device, swiftly clearing > them enables users and upper layers to react quickly. > > Verified with multiple device unplug iterations with pending requests in > virtio used ring and some pending with the device. > > Fixes: 43bb40c5b926 ("virtio_pci: Support surprise removal of virtio pci device") > Cc: stable(a)vger.kernel.org > Reported-by: Li RongQing <lirongqing(a)baidu.com> > Closes: https://lore.kernel.org/virtualization/c45dd68698cd47238c55fb73ca9b4741@bai… > Reviewed-by: Max Gurtovoy <mgurtovoy(a)nvidia.com> > Reviewed-by: Israel Rukshin <israelr(a)nvidia.com> > Signed-off-by: Parav Pandit <parav(a)nvidia.com> > > --- > v2->v3: > - Addressed comments from Michael > - updated comment for synchronizing with callbacks > > v1->v2: > - Addressed comments from Stephan > - fixed spelling to 'waiting' > - Addressed comments from Michael > - Dropped checking broken vq from queue_rq() and queue_rqs() > because it is checked in lower layer routines in virtio core > > v0->v1: > - Fixed comments from Stefan to rename a cleanup function > - Improved logic for handling any outstanding requests > in bio layer > - improved cancel callback to sync with ongoing done() Thanks! Something else small to improve. > --- > drivers/block/virtio_blk.c | 82 ++++++++++++++++++++++++++++++++++++++ > 1 file changed, 82 insertions(+) > > diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c > index 7cffea01d868..d37df878f4e9 100644 > --- a/drivers/block/virtio_blk.c > +++ b/drivers/block/virtio_blk.c > @@ -1554,6 +1554,86 @@ static int virtblk_probe(struct virtio_device *vdev) > return err; > } > > +static bool virtblk_request_cancel(struct request *rq, void *data) it is more virtblk_request_complete_broken_with_ioerr and maybe a comment? /* * If the vq is broken, device will not complete requests. * So we do it for the device. */ > +{ > + struct virtblk_req *vbr = blk_mq_rq_to_pdu(rq); > + struct virtio_blk *vblk = data; > + struct virtio_blk_vq *vq; > + unsigned long flags; > + > + vq = &vblk->vqs[rq->mq_hctx->queue_num]; > + > + spin_lock_irqsave(&vq->lock, flags); > + > + vbr->in_hdr.status = VIRTIO_BLK_S_IOERR; > + if (blk_mq_request_started(rq) && !blk_mq_request_completed(rq)) > + blk_mq_complete_request(rq); > + > + spin_unlock_irqrestore(&vq->lock, flags); > + return true; > +} > + > +static void virtblk_broken_device_cleanup(struct virtio_blk *vblk) and one goes okay what does it do exactly? cleanup device in a broken way? turns out no, it cleans up a broken device. And an overview would be good. Maybe, a small comment will help: /* * if the device is broken, it will not use any buffers and waiting * for that to happen is pointless. We'll do it in the driver, * completing all requests for the device. */ > +{ > + struct request_queue *q = vblk->disk->queue; > + > + if (!virtqueue_is_broken(vblk->vqs[0].vq)) > + return; so one has to read it, and understand that we did not need to call it in the 1st place on a non broken device. Moving it to the caller would be cleaner. > + > + /* Start freezing the queue, so that new requests keeps waiting at the wrong style of comment for blk. /* this is * net style */ /* * this is * rest of the linux style */ > + * door of bio_queue_enter(). We cannot fully freeze the queue because > + * freezed queue is an empty queue and there are pending requests, so a frozen queue > + * only start freezing it. > + */ > + blk_freeze_queue_start(q); > + > + /* When quiescing completes, all ongoing dispatches have completed > + * and no new dispatch will happen towards the driver. > + * This ensures that later when cancel is attempted, then are not they are not? > + * getting processed by the queue_rq() or queue_rqs() handlers. > + */ > + blk_mq_quiesce_queue(q); > + > + /* > + * Synchronize with any ongoing VQ callbacks that may have started > + * before the VQs were marked as broken. Any outstanding requests > + * will be completed by virtblk_request_cancel(). > + */ > + virtio_synchronize_cbs(vblk->vdev); > + > + /* At this point, no new requests can enter the queue_rq() and > + * completion routine will not complete any new requests either for the > + * broken vq. Hence, it is safe to cancel all requests which are > + * started. > + */ > + blk_mq_tagset_busy_iter(&vblk->tag_set, virtblk_request_cancel, vblk); > + blk_mq_tagset_wait_completed_request(&vblk->tag_set); > + > + /* All pending requests are cleaned up. Time to resume so that disk > + * deletion can be smooth. Start the HW queues so that when queue is > + * unquiesced requests can again enter the driver. > + */ > + blk_mq_start_stopped_hw_queues(q, true); > + > + /* Unquiescing will trigger dispatching any pending requests to the > + * driver which has crossed bio_queue_enter() to the driver. > + */ > + blk_mq_unquiesce_queue(q); > + > + /* Wait for all pending dispatches to terminate which may have been > + * initiated after unquiescing. > + */ > + blk_mq_freeze_queue_wait(q); > + > + /* Mark the disk dead so that once queue unfreeze, the requests ... once we unfreeze the queue > + * waiting at the door of bio_queue_enter() can be aborted right away. > + */ > + blk_mark_disk_dead(vblk->disk); > + > + /* Unfreeze the queue so that any waiting requests will be aborted. */ > + blk_mq_unfreeze_queue_nomemrestore(q); > +} > + > static void virtblk_remove(struct virtio_device *vdev) > { > struct virtio_blk *vblk = vdev->priv; > @@ -1561,6 +1641,8 @@ static void virtblk_remove(struct virtio_device *vdev) > /* Make sure no work handler is accessing the device. */ > flush_work(&vblk->config_work); > I prefer simply moving the test here: if (virtqueue_is_broken(vblk->vqs[0].vq)) virtblk_broken_device_cleanup(vblk); makes it much clearer what is going on, imho. > del_gendisk(vblk->disk); > blk_mq_free_tag_set(&vblk->tag_set); > > -- > 2.34.1

3 months, 3 weeks

2
2
0 0

Linux 6.14.9

by Greg Kroah-Hartman

I'm announcing the release of the 6.14.9 kernel. All users of the 6.14 kernel series must upgrade. The updated 6.14.y git tree can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-6.14.y and can be browsed at the normal kernel.org git web browser: https://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary thanks, greg k-h ------------ Documentation/admin-guide/kernel-parameters.txt | 2 Documentation/driver-api/pps.rst | 3 Documentation/driver-api/serial/driver.rst | 2 Documentation/hwmon/dell-smm-hwmon.rst | 14 Documentation/networking/net_cachelines/snmp.rst | 1 Makefile | 6 arch/arm/boot/dts/nvidia/tegra114.dtsi | 2 arch/arm/mach-at91/pm.c | 21 arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts | 38 arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts | 14 arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi | 22 arch/arm64/boot/dts/marvell/armada-3720-uDPU.dtsi | 8 arch/arm64/boot/dts/nvidia/tegra210-p2597.dtsi | 2 arch/arm64/boot/dts/nvidia/tegra234-p3740-0002+p3701-0008.dts | 10 arch/arm64/boot/dts/xilinx/zynqmp-clk-ccf.dtsi | 15 arch/arm64/include/asm/cputype.h | 2 arch/arm64/include/asm/pgtable.h | 27 arch/arm64/kernel/proton-pack.c | 1 arch/arm64/net/bpf_jit_comp.c | 6 arch/loongarch/kernel/Makefile | 8 arch/loongarch/kvm/Makefile | 2 arch/mips/include/asm/ftrace.h | 16 arch/mips/kernel/pm-cps.c | 30 arch/powerpc/include/asm/mmzone.h | 1 arch/powerpc/kernel/prom_init.c | 4 arch/powerpc/mm/book3s64/radix_pgtable.c | 3 arch/powerpc/mm/numa.c | 2 arch/powerpc/perf/core-book3s.c | 20 arch/powerpc/perf/isa207-common.c | 4 arch/powerpc/platforms/pseries/iommu.c | 139 ++- arch/riscv/include/asm/cpufeature.h | 3 arch/riscv/include/asm/page.h | 12 arch/riscv/include/asm/pgtable.h | 2 arch/riscv/kernel/Makefile | 4 arch/riscv/kernel/cpufeature.c | 60 - arch/riscv/mm/tlbflush.c | 37 arch/s390/hypfs/hypfs_diag_fs.c | 2 arch/s390/include/asm/tlb.h | 2 arch/um/kernel/mem.c | 1 arch/x86/Kconfig | 3 arch/x86/boot/boot.h | 4 arch/x86/boot/genimage.sh | 5 arch/x86/entry/entry.S | 2 arch/x86/entry/vdso/extable.h | 2 arch/x86/events/amd/ibs.c | 20 arch/x86/events/intel/ds.c | 9 arch/x86/include/asm/alternative.h | 6 arch/x86/include/asm/asm.h | 10 arch/x86/include/asm/boot.h | 2 arch/x86/include/asm/bug.h | 5 arch/x86/include/asm/cfi.h | 11 arch/x86/include/asm/cpufeature.h | 4 arch/x86/include/asm/cpumask.h | 4 arch/x86/include/asm/current.h | 4 arch/x86/include/asm/desc_defs.h | 4 arch/x86/include/asm/dwarf2.h | 2 arch/x86/include/asm/fixmap.h | 4 arch/x86/include/asm/frame.h | 10 arch/x86/include/asm/fred.h | 4 arch/x86/include/asm/fsgsbase.h | 4 arch/x86/include/asm/ftrace.h | 8 arch/x86/include/asm/hw_irq.h | 4 arch/x86/include/asm/ibt.h | 16 arch/x86/include/asm/idtentry.h | 6 arch/x86/include/asm/inst.h | 2 arch/x86/include/asm/intel-family.h | 1 arch/x86/include/asm/irqflags.h | 10 arch/x86/include/asm/jump_label.h | 4 arch/x86/include/asm/kasan.h | 2 arch/x86/include/asm/kexec.h | 4 arch/x86/include/asm/linkage.h | 6 arch/x86/include/asm/mem_encrypt.h | 4 arch/x86/include/asm/msr.h | 4 arch/x86/include/asm/nmi.h | 2 arch/x86/include/asm/nops.h | 2 arch/x86/include/asm/nospec-branch.h | 6 arch/x86/include/asm/orc_types.h | 4 arch/x86/include/asm/page.h | 4 arch/x86/include/asm/page_32.h | 4 arch/x86/include/asm/page_32_types.h | 4 arch/x86/include/asm/page_64.h | 4 arch/x86/include/asm/page_64_types.h | 2 arch/x86/include/asm/page_types.h | 4 arch/x86/include/asm/paravirt.h | 14 arch/x86/include/asm/paravirt_types.h | 4 arch/x86/include/asm/percpu.h | 32 arch/x86/include/asm/perf_event.h | 1 arch/x86/include/asm/pgtable-2level_types.h | 4 arch/x86/include/asm/pgtable-3level_types.h | 4 arch/x86/include/asm/pgtable-invert.h | 4 arch/x86/include/asm/pgtable.h | 12 arch/x86/include/asm/pgtable_32.h | 4 arch/x86/include/asm/pgtable_32_areas.h | 2 arch/x86/include/asm/pgtable_64.h | 6 arch/x86/include/asm/pgtable_64_types.h | 4 arch/x86/include/asm/pgtable_types.h | 10 arch/x86/include/asm/prom.h | 4 arch/x86/include/asm/pti.h | 4 arch/x86/include/asm/ptrace.h | 4 arch/x86/include/asm/purgatory.h | 4 arch/x86/include/asm/pvclock-abi.h | 4 arch/x86/include/asm/realmode.h | 4 arch/x86/include/asm/segment.h | 8 arch/x86/include/asm/setup.h | 6 arch/x86/include/asm/setup_data.h | 4 arch/x86/include/asm/sev-common.h | 2 arch/x86/include/asm/shared/tdx.h | 4 arch/x86/include/asm/shstk.h | 4 arch/x86/include/asm/signal.h | 8 arch/x86/include/asm/smap.h | 6 arch/x86/include/asm/smp.h | 4 arch/x86/include/asm/tdx.h | 4 arch/x86/include/asm/thread_info.h | 12 arch/x86/include/asm/unwind_hints.h | 4 arch/x86/include/asm/vdso/getrandom.h | 4 arch/x86/include/asm/vdso/gettimeofday.h | 4 arch/x86/include/asm/vdso/processor.h | 4 arch/x86/include/asm/vdso/vsyscall.h | 4 arch/x86/include/asm/xen/interface.h | 10 arch/x86/include/asm/xen/interface_32.h | 4 arch/x86/include/asm/xen/interface_64.h | 4 arch/x86/include/uapi/asm/bootparam.h | 4 arch/x86/include/uapi/asm/e820.h | 4 arch/x86/include/uapi/asm/ldt.h | 4 arch/x86/include/uapi/asm/msr.h | 4 arch/x86/include/uapi/asm/ptrace-abi.h | 6 arch/x86/include/uapi/asm/ptrace.h | 4 arch/x86/include/uapi/asm/setup_data.h | 4 arch/x86/include/uapi/asm/signal.h | 8 arch/x86/kernel/alternative.c | 30 arch/x86/kernel/amd_node.c | 41 arch/x86/kernel/cfi.c | 22 arch/x86/kernel/cpu/bugs.c | 10 arch/x86/kernel/cpu/microcode/intel.c | 2 arch/x86/kernel/nmi.c | 42 arch/x86/kernel/paravirt.c | 17 arch/x86/kernel/reboot.c | 10 arch/x86/kernel/smpboot.c | 9 arch/x86/kernel/traps.c | 82 + arch/x86/math-emu/control_w.h | 2 arch/x86/math-emu/exception.h | 6 arch/x86/math-emu/fpu_emu.h | 6 arch/x86/math-emu/status_w.h | 6 arch/x86/mm/init.c | 9 arch/x86/mm/init_64.c | 15 arch/x86/mm/kaslr.c | 10 arch/x86/mm/pgtable.c | 27 arch/x86/power/cpu.c | 14 arch/x86/realmode/rm/realmode.h | 4 arch/x86/realmode/rm/wakeup.h | 2 arch/x86/um/os-Linux/mcontext.c | 3 block/badblocks.c | 5 block/bdev.c | 50 - block/blk-cgroup.c | 22 block/blk-settings.c | 5 block/blk-sysfs.c | 102 +- block/blk-throttle.c | 15 block/blk-zoned.c | 5 block/blk.h | 3 block/bounce.c | 2 block/fops.c | 16 block/ioctl.c | 6 crypto/ahash.c | 4 crypto/algif_hash.c | 4 crypto/lzo-rle.c | 2 crypto/lzo.c | 2 crypto/skcipher.c | 1 drivers/accel/amdxdna/aie2_ctx.c | 29 drivers/accel/amdxdna/amdxdna_ctx.c | 2 drivers/accel/amdxdna/amdxdna_ctx.h | 3 drivers/accel/amdxdna/amdxdna_mailbox.c | 17 drivers/accel/qaic/qaic_drv.c | 2 drivers/acpi/Kconfig | 2 drivers/acpi/acpi_pnp.c | 2 drivers/acpi/hed.c | 7 drivers/auxdisplay/charlcd.c | 5 drivers/auxdisplay/charlcd.h | 5 drivers/auxdisplay/hd44780.c | 2 drivers/auxdisplay/lcd2s.c | 2 drivers/auxdisplay/panel.c | 2 drivers/base/faux.c | 15 drivers/base/power/main.c | 7 drivers/block/loop.c | 25 drivers/block/null_blk/main.c | 86 + drivers/block/ublk_drv.c | 53 - drivers/bluetooth/btmtksdio.c | 15 drivers/bluetooth/btusb.c | 98 -- drivers/char/tpm/tpm2-sessions.c | 2 drivers/clk/clk-s2mps11.c | 3 drivers/clk/imx/clk-imx8mp.c | 151 +++ drivers/clk/qcom/Kconfig | 2 drivers/clk/qcom/camcc-sm8250.c | 56 - drivers/clk/qcom/clk-alpha-pll.c | 52 - drivers/clk/qcom/lpassaudiocc-sc7280.c | 23 drivers/clk/renesas/rzg2l-cpg.c | 102 +- drivers/clk/sunxi-ng/ccu-sun20i-d1.c | 44 drivers/clk/sunxi-ng/ccu-sun50i-h616.c | 36 drivers/clk/sunxi-ng/ccu_mp.h | 22 drivers/clocksource/mips-gic-timer.c | 6 drivers/clocksource/timer-riscv.c | 6 drivers/cpufreq/amd-pstate.c | 1 drivers/cpufreq/cpufreq-dt-platdev.c | 1 drivers/cpufreq/tegra186-cpufreq.c | 7 drivers/cpuidle/governors/menu.c | 13 drivers/crypto/marvell/octeontx2/otx2_cptvf_reqmgr.c | 7 drivers/crypto/mxs-dcp.c | 8 drivers/dma/fsl-edma-main.c | 2 drivers/dma/idxd/cdev.c | 9 drivers/dma/ti/k3-udma-glue.c | 15 drivers/dpll/dpll_core.c | 5 drivers/edac/ie31200_edac.c | 28 drivers/firmware/arm_ffa/bus.c | 1 drivers/firmware/arm_ffa/driver.c | 12 drivers/firmware/arm_scmi/bus.c | 19 drivers/firmware/xilinx/zynqmp.c | 6 drivers/fpga/altera-cvp.c | 2 drivers/gpio/gpiolib.c | 3 drivers/gpu/drm/amd/amdgpu/amdgpu.h | 13 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h | 10 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 102 -- drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 18 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 143 ++- drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c | 31 drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c | 30 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 14 drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c | 54 - drivers/gpu/drm/amd/amdgpu/amdgpu_ih.h | 3 drivers/gpu/drm/amd/amdgpu/amdgpu_job.c | 16 drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c | 4 drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 38 drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 7 drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 3 drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.c | 6 drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c | 30 drivers/gpu/drm/amd/amdgpu/amdgpu_sync.h | 4 drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c | 42 drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 17 drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h | 2 drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 41 drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 1 drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 14 drivers/gpu/drm/amd/amdgpu/gfx_v10_0_cleaner_shader.h | 35 drivers/gpu/drm/amd/amdgpu/gfx_v10_1_10_cleaner_shader.asm | 126 ++ drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 47 - drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c | 48 - drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c | 10 drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 1 drivers/gpu/drm/amd/amdgpu/jpeg_v4_0_3.c | 2 drivers/gpu/drm/amd/amdgpu/jpeg_v4_0_3.h | 1 drivers/gpu/drm/amd/amdgpu/jpeg_v5_0_1.c | 1 drivers/gpu/drm/amd/amdgpu/mes_v11_0.c | 2 drivers/gpu/drm/amd/amdgpu/mmhub_v1_7.c | 25 drivers/gpu/drm/amd/amdgpu/mmhub_v1_8.c | 27 drivers/gpu/drm/amd/amdgpu/mmhub_v9_4.c | 31 drivers/gpu/drm/amd/amdgpu/nv.c | 16 drivers/gpu/drm/amd/amdgpu/soc15.c | 8 drivers/gpu/drm/amd/amdgpu/soc21.c | 10 drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c | 14 drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.h | 9 drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c | 452 +++++----- drivers/gpu/drm/amd/amdgpu/vcn_v5_0_1.c | 48 - drivers/gpu/drm/amd/amdkfd/cik_event_interrupt.c | 18 drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 25 drivers/gpu/drm/amd/amdkfd/kfd_debug.c | 14 drivers/gpu/drm/amd/amdkfd/kfd_device.c | 2 drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c | 124 -- drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_cik.c | 69 + drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_v10.c | 41 drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_v11.c | 41 drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_v12.c | 41 drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_v9.c | 38 drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_vi.c | 71 - drivers/gpu/drm/amd/amdkfd/kfd_events.c | 43 drivers/gpu/drm/amd/amdkfd/kfd_int_process_v11.c | 2 drivers/gpu/drm/amd/amdkfd/kfd_int_process_v9.c | 2 drivers/gpu/drm/amd/amdkfd/kfd_packet_manager_v9.c | 4 drivers/gpu/drm/amd/amdkfd/kfd_packet_manager_vi.c | 3 drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 11 drivers/gpu/drm/amd/amdkfd/kfd_process.c | 137 +-- drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c | 10 drivers/gpu/drm/amd/amdkfd/kfd_svm.c | 21 drivers/gpu/drm/amd/amdkfd/kfd_topology.c | 23 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 41 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h | 2 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 2 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 6 drivers/gpu/drm/amd/display/dc/basics/dc_common.c | 3 drivers/gpu/drm/amd/display/dc/bios/command_table2.c | 9 drivers/gpu/drm/amd/display/dc/bios/command_table_helper2.c | 3 drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c | 22 drivers/gpu/drm/amd/display/dc/clk_mgr/dcn316/dcn316_clk_mgr.c | 15 drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c | 13 drivers/gpu/drm/amd/display/dc/clk_mgr/dcn401/dcn401_clk_mgr.c | 2 drivers/gpu/drm/amd/display/dc/core/dc.c | 22 drivers/gpu/drm/amd/display/dc/core/dc_hw_sequencer.c | 21 drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 71 + drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c | 50 - drivers/gpu/drm/amd/display/dc/dc_dp_types.h | 12 drivers/gpu/drm/amd/display/dc/dc_hw_types.h | 5 drivers/gpu/drm/amd/display/dc/dc_types.h | 7 drivers/gpu/drm/amd/display/dc/dce/dce_stream_encoder.c | 3 drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c | 4 drivers/gpu/drm/amd/display/dc/dio/dcn10/dcn10_stream_encoder.c | 3 drivers/gpu/drm/amd/display/dc/dio/dcn401/dcn401_dio_stream_encoder.c | 3 drivers/gpu/drm/amd/display/dc/dml/dcn35/dcn35_fpu.c | 6 drivers/gpu/drm/amd/display/dc/dml/dcn351/dcn351_fpu.c | 1 drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_utils.c | 1 drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_wrapper.c | 22 drivers/gpu/drm/amd/display/dc/dml2/dml21/inc/dml_top_types.h | 1 drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_dcn4.c | 30 drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_dcn4_calcs.c | 33 drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_shared_types.h | 5 drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_pmo/dml2_pmo_dcn4_fams2.c | 21 drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_top/dml2_top_soc15.c | 8 drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.h | 1 drivers/gpu/drm/amd/display/dc/dpp/dcn30/dcn30_dpp.c | 11 drivers/gpu/drm/amd/display/dc/hpo/dcn31/dcn31_hpo_dp_stream_encoder.c | 3 drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c | 10 drivers/gpu/drm/amd/display/dc/hwss/dcn10/dcn10_hwseq.c | 55 - drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c | 22 drivers/gpu/drm/amd/display/dc/hwss/dcn31/dcn31_hwseq.c | 4 drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c | 3 drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c | 92 -- drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.h | 3 drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_init.c | 2 drivers/gpu/drm/amd/display/dc/hwss/hw_sequencer.h | 6 drivers/gpu/drm/amd/display/dc/inc/core_types.h | 2 drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr_internal.h | 1 drivers/gpu/drm/amd/display/dc/inc/hw/dpp.h | 6 drivers/gpu/drm/amd/display/dc/inc/resource.h | 2 drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c | 42 drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_phy.c | 8 drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training.c | 5 drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training_8b_10b.c | 7 drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c | 25 drivers/gpu/drm/amd/display/dc/resource/dcn315/dcn315_resource.c | 42 drivers/gpu/drm/amd/display/dc/spl/dc_spl.c | 87 + drivers/gpu/drm/amd/display/dc/spl/dc_spl_types.h | 12 drivers/gpu/drm/amd/display/dc/spl/spl_fixpt31_32.c | 2 drivers/gpu/drm/amd/display/dc/spl/spl_fixpt31_32.h | 4 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drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c | 49 - drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.c | 28 drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 40 drivers/net/ethernet/mellanox/mlx5/core/en_rep.c | 5 drivers/net/ethernet/mellanox/mlx5/core/en_selftest.c | 3 drivers/net/ethernet/mellanox/mlx5/core/esw/ipsec_fs.c | 13 drivers/net/ethernet/mellanox/mlx5/core/esw/ipsec_fs.h | 5 drivers/net/ethernet/mellanox/mlx5/core/esw/legacy.c | 2 drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c | 13 drivers/net/ethernet/mellanox/mlx5/core/events.c | 11 drivers/net/ethernet/mellanox/mlx5/core/fs_ft_pool.c | 6 drivers/net/ethernet/mellanox/mlx5/core/fs_ft_pool.h | 2 drivers/net/ethernet/mellanox/mlx5/core/health.c | 1 drivers/net/ethernet/mellanox/mlx5/core/lib/fs_chains.c | 3 drivers/net/ethernet/meta/fbnic/fbnic_fw.c | 16 drivers/net/ethernet/meta/fbnic/fbnic_fw.h | 8 drivers/net/ethernet/meta/fbnic/fbnic_netdev.c | 2 drivers/net/ethernet/microchip/lan743x_main.c | 19 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drivers/pci/controller/vmd.c | 20 drivers/pci/endpoint/functions/pci-epf-mhi.c | 2 drivers/pci/endpoint/functions/pci-epf-test.c | 2 drivers/pci/setup-bus.c | 6 drivers/perf/arm_pmuv3.c | 4 drivers/phy/phy-core.c | 7 drivers/phy/renesas/phy-rcar-gen3-usb2.c | 95 +- drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c | 4 drivers/phy/rockchip/phy-rockchip-usbdp.c | 87 + drivers/phy/samsung/phy-exynos5-usbdrd.c | 7 drivers/pinctrl/bcm/pinctrl-bcm281xx.c | 44 drivers/pinctrl/devicetree.c | 10 drivers/pinctrl/meson/pinctrl-meson.c | 2 drivers/pinctrl/qcom/Kconfig.msm | 4 drivers/pinctrl/qcom/pinctrl-msm.c | 23 drivers/pinctrl/qcom/pinctrl-msm8917.c | 8 drivers/pinctrl/renesas/pinctrl-rzg2l.c | 19 drivers/pinctrl/sophgo/pinctrl-cv18xx.c | 33 drivers/pinctrl/tegra/pinctrl-tegra.c | 59 + drivers/pinctrl/tegra/pinctrl-tegra.h | 6 drivers/platform/x86/asus-wmi.c | 11 drivers/platform/x86/dell/dell-wmi-sysman/passobj-attributes.c | 2 drivers/platform/x86/ideapad-laptop.c | 16 drivers/platform/x86/intel/hid.c | 21 drivers/platform/x86/think-lmi.c | 26 drivers/platform/x86/think-lmi.h | 1 drivers/pmdomain/core.c | 2 drivers/pmdomain/imx/gpcv2.c | 2 drivers/pmdomain/renesas/rcar-gen4-sysc.c | 5 drivers/pmdomain/renesas/rcar-sysc.c | 5 drivers/power/supply/axp20x_battery.c | 21 drivers/pps/generators/pps_gen-dummy.c | 2 drivers/pps/generators/pps_gen.c | 14 drivers/pps/generators/sysfs.c | 6 drivers/ptp/ptp_ocp.c | 24 drivers/regulator/ad5398.c | 12 drivers/remoteproc/qcom_wcnss.c | 34 drivers/rtc/rtc-ds1307.c | 4 drivers/rtc/rtc-rv3032.c | 2 drivers/s390/crypto/vfio_ap_ops.c | 72 + drivers/scsi/aacraid/aachba.c | 4 drivers/scsi/arm/acornscsi.c | 2 drivers/scsi/ips.c | 8 drivers/scsi/lpfc/lpfc_els.c | 10 drivers/scsi/lpfc/lpfc_hbadisc.c | 29 drivers/scsi/lpfc/lpfc_init.c | 2 drivers/scsi/megaraid.c | 10 drivers/scsi/megaraid/megaraid_mbox.c | 10 drivers/scsi/mpi3mr/mpi3mr_fw.c | 8 drivers/scsi/mpt3sas/mpt3sas_ctl.c | 12 drivers/scsi/scsi_debug.c | 55 + drivers/scsi/scsi_sysctl.c | 4 drivers/scsi/st.c | 29 drivers/scsi/st.h | 2 drivers/soc/apple/rtkit-internal.h | 1 drivers/soc/apple/rtkit.c | 58 - drivers/soc/mediatek/mtk-mutex.c | 6 drivers/soc/samsung/exynos-asv.c | 1 drivers/soc/samsung/exynos-chipid.c | 1 drivers/soc/samsung/exynos-pmu.c | 1 drivers/soc/samsung/exynos-usi.c | 1 drivers/soc/samsung/exynos3250-pmu.c | 1 drivers/soc/samsung/exynos5250-pmu.c | 1 drivers/soc/samsung/exynos5420-pmu.c | 1 drivers/soc/ti/k3-socinfo.c | 13 drivers/soundwire/amd_manager.c | 2 drivers/soundwire/bus.c | 9 drivers/soundwire/cadence_master.c | 22 drivers/spi/spi-fsl-dspi.c | 46 - drivers/spi/spi-mux.c | 4 drivers/spi/spi-rockchip.c | 2 drivers/spi/spi-zynqmp-gqspi.c | 20 drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c | 69 - drivers/target/iscsi/iscsi_target.c | 2 drivers/target/target_core_device.c | 8 drivers/target/target_core_pr.c | 6 drivers/target/target_core_spc.c | 34 drivers/thermal/intel/x86_pkg_temp_thermal.c | 1 drivers/thermal/mediatek/lvts_thermal.c | 3 drivers/thermal/qoriq_thermal.c | 13 drivers/thunderbolt/retimer.c | 8 drivers/tty/serial/8250/8250_port.c | 2 drivers/tty/serial/atmel_serial.c | 2 drivers/tty/serial/imx.c | 2 drivers/tty/serial/serial_mctrl_gpio.c | 34 drivers/tty/serial/serial_mctrl_gpio.h | 17 drivers/tty/serial/sh-sci.c | 98 ++ drivers/tty/serial/stm32-usart.c | 2 drivers/ufs/core/ufshcd.c | 29 drivers/usb/gadget/function/f_mass_storage.c | 4 drivers/usb/host/xhci-mem.c | 34 drivers/usb/host/xhci-ring.c | 12 drivers/usb/host/xhci.h | 8 drivers/usb/storage/debug.c | 4 drivers/vdpa/mlx5/net/mlx5_vnet.c | 3 drivers/vfio/pci/vfio_pci_config.c | 3 drivers/vfio/pci/vfio_pci_core.c | 10 drivers/vfio/pci/vfio_pci_intrs.c | 2 drivers/vhost/scsi.c | 23 drivers/video/fbdev/core/bitblit.c | 5 drivers/video/fbdev/core/fbcon.c | 10 drivers/video/fbdev/core/fbcon.h | 38 drivers/video/fbdev/core/fbcon_ccw.c | 5 drivers/video/fbdev/core/fbcon_cw.c | 5 drivers/video/fbdev/core/fbcon_ud.c | 5 drivers/video/fbdev/core/tileblit.c | 45 drivers/video/fbdev/fsl-diu-fb.c | 1 drivers/virtio/virtio.c | 35 drivers/virtio/virtio_ring.c | 2 drivers/watchdog/aspeed_wdt.c | 81 + drivers/watchdog/s3c2410_wdt.c | 10 drivers/xen/pci.c | 32 drivers/xen/platform-pci.c | 4 drivers/xen/xenbus/xenbus_probe.c | 14 fs/btrfs/block-group.c | 18 fs/btrfs/compression.c | 2 fs/btrfs/discard.c | 34 fs/btrfs/disk-io.c | 28 fs/btrfs/extent_io.c | 7 fs/btrfs/extent_io.h | 2 fs/btrfs/scrub.c | 4 fs/btrfs/send.c | 6 fs/btrfs/tree-checker.c | 2 fs/buffer.c | 61 - fs/dlm/lowcomms.c | 4 fs/erofs/internal.h | 4 fs/erofs/super.c | 46 - fs/erofs/zdata.c | 4 fs/exfat/inode.c | 159 +-- fs/ext4/balloc.c | 4 fs/ext4/ext4.h | 5 fs/ext4/extents.c | 19 fs/ext4/inode.c | 81 + fs/ext4/mballoc.c | 3 fs/ext4/page-io.c | 16 fs/ext4/super.c | 19 fs/f2fs/sysfs.c | 74 + fs/fuse/dir.c | 2 fs/gfs2/glock.c | 11 fs/jbd2/recovery.c | 69 + fs/jbd2/revoke.c | 23 fs/namespace.c | 6 fs/nfs/delegation.c | 3 fs/nfs/flexfilelayout/flexfilelayout.c | 1 fs/nfs/inode.c | 2 fs/nfs/internal.h | 5 fs/nfs/nfs3proc.c | 2 fs/nfs/nfs4proc.c | 9 fs/nfs/nfs4state.c | 10 fs/nilfs2/the_nilfs.c | 3 fs/ocfs2/journal.c | 2 fs/orangefs/inode.c | 7 fs/pidfs.c | 9 fs/pipe.c | 4 fs/pstore/inode.c | 2 fs/pstore/internal.h | 4 fs/pstore/platform.c | 11 fs/smb/client/cifsacl.c | 21 fs/smb/client/cifspdu.h | 5 fs/smb/client/cifsproto.h | 7 fs/smb/client/cifssmb.c | 95 +- fs/smb/client/connect.c | 30 fs/smb/client/fs_context.c | 13 fs/smb/client/fs_context.h | 3 fs/smb/client/link.c | 11 fs/smb/client/readdir.c | 7 fs/smb/client/smb1ops.c | 228 ++++- fs/smb/client/smb2file.c | 11 fs/smb/client/smb2inode.c | 8 fs/smb/client/smb2ops.c | 34 fs/smb/client/smb2pdu.c | 4 fs/smb/client/transport.c | 2 fs/smb/client/xattr.c | 15 fs/smb/common/smb2pdu.h | 3 fs/smb/server/smb2pdu.c | 9 fs/smb/server/vfs.c | 14 include/crypto/hash.h | 3 include/drm/drm_atomic.h | 23 include/drm/drm_gem.h | 13 include/linux/alloc_tag.h | 12 include/linux/blkdev.h | 1 include/linux/bpf-cgroup.h | 1 include/linux/bpf.h | 7 include/linux/buffer_head.h | 8 include/linux/codetag.h | 8 include/linux/coresight.h | 2 include/linux/device.h | 119 -- include/linux/device/devres.h | 129 ++ include/linux/dma-mapping.h | 12 include/linux/dma/k3-udma-glue.h | 3 include/linux/err.h | 3 include/linux/gpio/driver.h | 3 include/linux/highmem.h | 10 include/linux/io.h | 2 include/linux/ipv6.h | 1 include/linux/jbd2.h | 2 include/linux/lzo.h | 8 include/linux/mfd/axp20x.h | 1 include/linux/mlx4/device.h | 2 include/linux/mlx5/eswitch.h | 2 include/linux/mlx5/fs.h | 2 include/linux/mm.h | 2 include/linux/mman.h | 2 include/linux/mroute_base.h | 5 include/linux/msi.h | 33 include/linux/objtool.h | 4 include/linux/page-flags.h | 7 include/linux/pci-ats.h | 3 include/linux/percpu.h | 4 include/linux/perf_event.h | 8 include/linux/pnp.h | 2 include/linux/pps_gen_kernel.h | 4 include/linux/rcupdate.h | 2 include/linux/rcutree.h | 2 include/linux/ring_buffer.h | 3 include/linux/spi/spi.h | 5 include/linux/tcp.h | 2 include/linux/trace.h | 4 include/linux/trace_seq.h | 8 include/linux/usb/r8152.h | 1 include/linux/virtio.h | 3 include/media/v4l2-subdev.h | 4 include/net/cfg80211.h | 4 include/net/dropreason.h | 6 include/net/mac80211.h | 4 include/net/xfrm.h | 1 include/rdma/uverbs_std_types.h | 2 include/scsi/scsi_proto.h | 4 include/sound/hda_codec.h | 1 include/sound/pcm.h | 2 include/sound/soc_sdw_utils.h | 1 include/trace/events/btrfs.h | 2 include/trace/events/scsi.h | 4 include/trace/events/target.h | 4 include/uapi/linux/bpf.h | 1 include/uapi/linux/iommufd.h | 14 include/uapi/linux/nl80211.h | 52 - include/uapi/linux/snmp.h | 1 include/uapi/linux/taskstats.h | 47 - include/ufs/ufs_quirks.h | 6 io_uring/fdinfo.c | 4 io_uring/io_uring.c | 96 +- io_uring/msg_ring.c | 1 io_uring/net.c | 14 kernel/bpf/bpf_iter.c | 13 kernel/bpf/bpf_struct_ops.c | 98 -- kernel/bpf/cgroup.c | 33 kernel/bpf/disasm.c | 4 kernel/bpf/hashtab.c | 2 kernel/bpf/syscall.c | 8 kernel/bpf/verifier.c | 56 - kernel/cgroup/cgroup.c | 2 kernel/cgroup/rstat.c | 12 kernel/dma/mapping.c | 25 kernel/events/core.c | 100 +- kernel/events/hw_breakpoint.c | 5 kernel/events/ring_buffer.c | 1 kernel/exit.c | 6 kernel/fork.c | 9 kernel/module/main.c | 1 kernel/padata.c | 3 kernel/printk/printk.c | 14 kernel/rcu/rcu.h | 2 kernel/rcu/tree.c | 15 kernel/rcu/tree_plugin.h | 22 kernel/rseq.c | 60 + kernel/sched/fair.c | 6 kernel/signal.c | 3 kernel/softirq.c | 18 kernel/time/hrtimer.c | 29 kernel/time/posix-timers.c | 26 kernel/time/timer_list.c | 4 kernel/trace/ring_buffer.c | 31 kernel/trace/trace.c | 41 kernel/trace/trace.h | 25 kernel/vhost_task.c | 2 lib/alloc_tag.c | 87 + lib/codetag.c | 5 lib/dynamic_queue_limits.c | 2 lib/lzo/Makefile | 2 lib/lzo/lzo1x_compress.c | 102 +- lib/lzo/lzo1x_compress_safe.c | 18 mm/hugetlb.c | 8 mm/kasan/shadow.c | 92 +- mm/memcontrol.c | 6 mm/page_alloc.c | 8 mm/vmalloc.c | 13 net/bluetooth/hci_event.c | 3 net/bluetooth/l2cap_core.c | 15 net/bridge/br_mdb.c | 2 net/bridge/br_nf_core.c | 7 net/bridge/br_private.h | 1 net/can/bcm.c | 79 + net/core/dev.c | 12 net/core/dev.h | 12 net/core/net-sysfs.c | 5 net/core/page_pool.c | 7 net/core/pktgen.c | 13 net/core/rtnetlink.c | 10 net/dsa/tag_ksz.c | 19 net/hsr/hsr_device.c | 2 net/hsr/hsr_forward.c | 4 net/hsr/hsr_framereg.c | 95 ++ net/hsr/hsr_framereg.h | 8 net/hsr/hsr_main.h | 2 net/ipv4/esp4.c | 53 - net/ipv4/fib_frontend.c | 28 net/ipv4/fib_rules.c | 4 net/ipv4/fib_trie.c | 22 net/ipv4/inet_hashtables.c | 37 net/ipv4/ip_gre.c | 16 net/ipv4/ipmr.c | 12 net/ipv4/proc.c | 1 net/ipv4/syncookies.c | 1 net/ipv4/tcp_input.c | 57 - net/ipv4/tcp_minisocks.c | 26 net/ipv4/tcp_output.c | 6 net/ipv4/xfrm4_input.c | 18 net/ipv6/esp6.c | 53 - net/ipv6/fib6_rules.c | 4 net/ipv6/ip6_gre.c | 2 net/ipv6/ip6_output.c | 11 net/ipv6/ip6_tunnel.c | 3 net/ipv6/ip6_vti.c | 3 net/ipv6/ip6mr.c | 12 net/ipv6/sit.c | 8 net/ipv6/xfrm6_input.c | 18 net/llc/af_llc.c | 8 net/mac80211/agg-tx.c | 5 net/mac80211/cfg.c | 14 net/mac80211/driver-ops.h | 3 net/mac80211/drop.h | 21 net/mac80211/ethtool.c | 2 net/mac80211/ieee80211_i.h | 13 net/mac80211/iface.c | 60 - net/mac80211/main.c | 16 net/mac80211/mlme.c | 150 +++ net/mac80211/rx.c | 194 +--- net/mac80211/status.c | 32 net/mac80211/tx.c | 2 net/mac80211/util.c | 3 net/mptcp/pm_userspace.c | 8 net/netfilter/nf_conntrack_standalone.c | 12 net/sched/sch_hfsc.c | 6 net/smc/smc_pnet.c | 8 net/sunrpc/clnt.c | 3 net/sunrpc/rpcb_clnt.c | 5 net/sunrpc/sched.c | 2 net/tipc/crypto.c | 5 net/wireless/chan.c | 8 net/wireless/mlme.c | 4 net/wireless/nl80211.c | 4 net/wireless/reg.c | 4 net/xdp/xsk.c | 2 net/xfrm/espintcp.c | 4 net/xfrm/xfrm_policy.c | 3 net/xfrm/xfrm_state.c | 6 net/xfrm/xfrm_user.c | 12 samples/bpf/Makefile | 2 scripts/Makefile.extrawarn | 11 scripts/config | 26 scripts/kconfig/confdata.c | 19 scripts/kconfig/merge_config.sh | 4 security/integrity/ima/ima_main.c | 4 security/smack/smackfs.c | 21 sound/core/oss/pcm_oss.c | 3 sound/core/pcm_native.c | 11 sound/core/seq/seq_clientmgr.c | 5 sound/core/seq/seq_memory.c | 1 sound/pci/hda/hda_beep.c | 15 sound/pci/hda/patch_realtek.c | 77 + sound/soc/codecs/cs42l43-jack.c | 7 sound/soc/codecs/mt6359-accdet.h | 9 sound/soc/codecs/pcm3168a.c | 6 sound/soc/codecs/pcm6240.c | 28 sound/soc/codecs/pcm6240.h | 7 sound/soc/codecs/rt722-sdca-sdw.c | 49 + sound/soc/codecs/sma1307.c | 27 sound/soc/codecs/tas2764.c | 53 - sound/soc/codecs/wsa883x.c | 2 sound/soc/codecs/wsa884x.c | 2 sound/soc/fsl/imx-card.c | 2 sound/soc/intel/boards/bytcr_rt5640.c | 13 sound/soc/mediatek/mt8188/mt8188-afe-clk.c | 8 sound/soc/mediatek/mt8188/mt8188-afe-clk.h | 8 sound/soc/mediatek/mt8188/mt8188-afe-pcm.c | 4 sound/soc/qcom/sm8250.c | 3 sound/soc/sdw_utils/soc_sdw_bridge_cs35l56.c | 4 sound/soc/sdw_utils/soc_sdw_cs42l43.c | 10 sound/soc/sdw_utils/soc_sdw_cs_amp.c | 24 sound/soc/soc-dai.c | 8 sound/soc/soc-ops.c | 29 sound/soc/sof/intel/hda-bus.c | 2 sound/soc/sof/intel/hda.c | 16 sound/soc/sof/ipc4-control.c | 11 sound/soc/sof/ipc4-pcm.c | 3 sound/soc/sof/topology.c | 18 sound/soc/sunxi/sun4i-codec.c | 56 + sound/usb/midi.c | 16 tools/arch/x86/include/asm/asm.h | 8 tools/arch/x86/include/asm/nops.h | 2 tools/arch/x86/include/asm/orc_types.h | 4 tools/arch/x86/include/asm/pvclock-abi.h | 4 tools/bpf/bpftool/btf.c | 14 tools/bpf/bpftool/btf_dumper.c | 2 tools/bpf/bpftool/cgroup.c | 2 tools/bpf/bpftool/common.c | 7 tools/bpf/bpftool/jit_disasm.c | 3 tools/bpf/bpftool/map_perf_ring.c | 6 tools/bpf/bpftool/net.c | 4 tools/bpf/bpftool/netlink_dumper.c | 6 tools/bpf/bpftool/prog.c | 12 tools/bpf/bpftool/tracelog.c | 2 tools/bpf/bpftool/xlated_dumper.c | 6 tools/build/Makefile.build | 6 tools/include/uapi/linux/bpf.h | 1 tools/lib/bpf/libbpf.c | 2 tools/net/ynl/lib/ynl.c | 2 tools/net/ynl/pyynl/ynl_gen_c.py | 3 tools/objtool/check.c | 21 tools/power/x86/turbostat/turbostat.8 | 1 tools/power/x86/turbostat/turbostat.c | 13 tools/testing/kunit/kunit_parser.py | 9 tools/testing/kunit/qemu_configs/x86_64.py | 4 tools/testing/selftests/bpf/prog_tests/sockmap_ktls.c | 1 tools/testing/selftests/iommu/iommufd.c | 4 tools/testing/selftests/net/forwarding/bridge_mdb.sh | 2 tools/testing/selftests/net/gro.sh | 3 tools/testing/selftests/net/nl_netdev.py | 18 tools/testing/selftests/pci_endpoint/pci_endpoint_test.c | 2 1081 files changed, 12343 insertions(+), 5740 deletions(-) Aaradhana Sahu (2): wifi: ath12k: Enable MLO setup ready and teardown commands for single split-phy device wifi: ath12k: Fetch regdb.bin file from board-2.bin Aaron Kling (1): cpufreq: tegra186: Share policy per cluster Aditya Kumar Singh (1): wifi: ath12k: use arvif instead of link_conf in ath12k_mac_set_key() Adrian Hunter (1): perf/x86/intel: Fix segfault with PEBS-via-PT with sample_freq Ahmad Fatoum (2): clk: imx8mp: inform CCF of maximum frequency of clocks pmdomain: imx: gpcv2: use proper helper for property detection Al Viro (2): hypfs_create_cpu_files(): add missing check for hypfs_mkdir() failure __legitimize_mnt(): check for MNT_SYNC_UMOUNT should be under mount_lock Alain Volmat (2): media: stm32: csi: use ARRAY_SIZE to search D-PHY table media: stm32: csi: add missing pm_runtime_put on error Aleksander Jan Bajkowski (1): r8152: add vendor/device ID pair for Dell Alienware AW1022z Alex Deucher (7): drm/amdgpu: don't free conflicting apertures for non-display devices drm/amdgpu: adjust drm_firmware_drivers_only() handling drm/amdgpu/gfx12: don't read registers in mqd init drm/amdgpu/gfx11: don't read registers in mqd init drm/amdgpu/mes11: fix set_hw_resources_1 calculation drm/amd/display/dm: drop hw_support check in amdgpu_dm_i2c_xfer() drm/amdgpu/vcn4.0.5: split code along instances Alex Sierra (1): drm/amdkfd: clear F8_MODE for gfx950 Alex Williamson (1): vfio/pci: Handle INTx IRQ_NOTCONNECTED Alexander Duyck (1): eth: fbnic: set IFF_UNICAST_FLT to avoid enabling promiscuous mode when adding unicast addrs Alexander Gordeev (1): kasan: avoid sleepable page allocation from atomic context Alexander Stein (1): hwmon: (gpio-fan) Add missing mutex locks Alexander Sverdlin (1): net: ethernet: ti: cpsw_new: populate netdev of_node Alexander Wetzel (2): wifi: mac80211: Drop cooked monitor support wifi: mac80211: Add counter for all monitor interfaces Alexandre Belloni (2): rtc: rv3032: fix EERD location rtc: ds1307: stop disabling alarms on probe Alexandre Ghiti (1): riscv: Call secondary mmu notifier when flushing the tlb Alexei Lazar (2): net/mlx5: XDP, Enable TX side XDP multi-buffer support net/mlx5: Extend Ethtool loopback selftest to support non-linear SKB Alexey Klimov (1): ASoC: qcom: sm8250: explicitly set format in sm8250_be_hw_params_fixup() Alexis Lothoré (1): serial: mctrl_gpio: split disable_ms into sync and no_sync APIs Alice Guo (1): thermal/drivers/qoriq: Power down TMU on system suspend Alistair Francis (1): nvmet-tcp: don't restore null sk_state_change Amber Lin (1): drm/amdkfd: Correct F8_MODE for gfx950 Amery Hung (2): bpf: Search and add kfuncs in struct_ops prologue and epilogue bpf: Make every prog keep a copy of ctx_arg_info Andre Przywara (1): clk: sunxi-ng: d1: Add missing divider for MMC mod clocks Andreas Gruenbacher (1): gfs2: Check for empty queue in run_queue Andreas Schwab (1): powerpc/prom_init: Fixup missing #size-cells on PowerBook6,7 Andrei Botila (1): net: phy: nxp-c45-tja11xx: add match_phy_device to TJA1103/TJA1104 Andrew Bresticker (1): irqchip/riscv-imsic: Start local sync timer on correct CPU Andrew Davis (1): soc: ti: k3-socinfo: Do not use syscon helper to build regmap Andrew Jones (1): irqchip/riscv-imsic: Set irq_set_affinity() for IMSIC base Andrey Vatoropin (1): hwmon: (xgene-hwmon) use appropriate type for the latency value André Draszik (2): phy: exynos5-usbdrd: fix EDS distribution tuning (gs101) clk: s2mps11: initialise clk_hw_onecell_data::num before accessing ::hws[] in probe() Andy Shevchenko (5): tracing: Mark binary printing functions with __printf() attribute auxdisplay: charlcd: Partially revert "Move hwidth and bwidth to struct hd44780_common" ieee802154: ca8210: Use proper setters and getters for bitwise types hrtimers: Replace hrtimer_clock_to_base_table with switch-case driver core: Split devres APIs to device/devres.h Andy Yan (2): phy: rockchip: usbdp: Only verify link rates/lanes/voltage when the corresponding set flags are set drm/rockchip: vop2: Add uv swap for cluster window Angelo Dureghello (3): iio: adc: ad7606: protect register access iio: dac: ad3552r-hs: use instruction mode for configuration iio: dac: adi-axi-dac: add bus mode setup AngeloGioacchino Del Regno (2): soc: mediatek: mtk-mutex: Add DPI1 SOF/EOF to MT8188 mutex tables drm/mediatek: mtk_dpi: Add checks for reg_h_fre_con existence Anjaneyulu (1): wifi: cfg80211: allow IR in 20 MHz configurations Ankur Arora (3): rcu: handle quiescent states for PREEMPT_RCU=n, PREEMPT_COUNT=y rcu: handle unstable rdp in rcu_read_unlock_strict() rcu: fix header guard for rcu_all_qs() Anthony Krowiak (1): s390/vfio-ap: Fix no AP queue sharing allowed message written to kernel log Anup Patel (1): irqchip/riscv-imsic: Separate next and previous pointers in IMSIC vector Aric Cyr (1): drm/amd/display: Request HW cursor on DCN3.2 with SubVP Arnd Bergmann (5): soc: samsung: include linux/array_size.h where needed net: xgene-v2: remove incorrect ACPI_PTR annotation EDAC/ie31200: work around false positive build warning watchdog: aspeed: fix 64-bit division octeontx2: hide unused label Artur Weber (1): pinctrl: bcm281xx: Use "unsigned int" instead of bare "unsigned" Asad Kamal (1): drm/amd/pm: Skip P2S load for SMU v13.0.12 Assadian, Navid (1): drm/amd/display: Fix mismatch type comparison Athira Rajeev (1): arch/powerpc/perf: Check the instruction type before creating sample with perf_mem_data_src Austin Zheng (3): drm/amd/display: Account For OTO Prefetch Bandwidth When Calculating Urgent Bandwidth drm/amd/display: Use Nominal vBlank If Provided Instead Of Capping It drm/amd/display: Call FP Protect Before Mode Programming/Mode Support Avraham Stern (1): wifi: iwlwifi: mvm: fix setting the TK when associated Avula Sri Charan (1): wifi: ath12k: Avoid napi_sync() before napi_enable() Axel Forsman (2): can: kvaser_pciefd: Continue parsing DMA buf after dropped RX can: kvaser_pciefd: Fix echo_skb race Balbir Singh (4): dma/mapping.c: dev_dbg support for dma_addressing_limited dma-mapping: Fix warning reported for missing prototype x86/kaslr: Reduce KASLR entropy on most x86 systems x86/mm/init: Handle the special case of device private pages in add_pages(), to not increase max_pfn and trigger dma_addressing_limited() bounce buffers Baokun Li (2): ext4: reject the 'data_err=abort' option in nojournal mode ext4: do not convert the unwritten extents if data writeback fails Bard Liao (1): soundwire: cadence_master: set frame shape and divider based on actual clk freq Bart Van Assche (1): scsi: usb: Rename the RESERVE and RELEASE constants Bartosz Golaszewski (1): gpiolib: sanitize the return value of gpio_chip::set_config() Benjamin Berg (2): um: Store full CSGSFS and SS register from mcontext wifi: mac80211: add HT and VHT basic set verification Benjamin Lin (1): wifi: mt76: mt7996: revise TXS size Benjamin Segall (1): posix-timers: Invoke cond_resched() during exit_itimers() Bibo Mao (1): MIPS: Use arch specific syscall name match function Bitterblue Smith (9): wifi: rtw88: Fix rtw_init_vht_cap() for RTL8814AU wifi: rtw88: Fix rtw_init_ht_cap() for RTL8814AU wifi: rtw88: Fix rtw_desc_to_mcsrate() to handle MCS16-31 wifi: rtw88: Fix rtw_mac_power_switch() for RTL8814AU wifi: rtw88: Fix rtw_update_sta_info() for RTL8814AU wifi: rtw88: Extend rtw_fw_send_ra_info() for RTL8814AU wifi: rtw88: Fix download_firmware_validate() for RTL8814AU wifi: rtw88: Fix __rtw_download_firmware() for RTL8814AU wifi: rtw88: Don't use static local variable in rtw8822b_set_tx_power_index_by_rate Bogdan-Gabriel Roman (1): spi: spi-fsl-dspi: Halt the module after a new message transfer Boris Burkov (2): btrfs: make btrfs_discard_workfn() block_group ref explicit btrfs: handle empty eb->folios in num_extent_folios() Brandon Kammerdiener (1): bpf: fix possible endless loop in BPF map iteration Brandon Syu (1): Revert "drm/amd/display: Exit idle optimizations before attempt to access PHY" Brendan Jackman (1): kunit: tool: Use qboot on QEMU x86_64 Breno Leitao (3): x86/bugs: Make spectre user default depend on MITIGATION_SPECTRE_V2 netdevsim: call napi_schedule from a timer context memcg: always call cond_resched() after fn() Caleb Sander Mateos (2): ublk: complete command synchronously on error io_uring: use IO_REQ_LINK_FLAGS more Carlos Sanchez (1): can: slcan: allow reception of short error messages Carolina Jubran (2): net/mlx5: Preserve rate settings when creating a rate node net/mlx5e: Avoid WARN_ON when configuring MQPRIO with HTB offload enabled Cezary Rojewski (1): ASoC: codecs: pcm3168a: Allow for 24-bit in provider mode Chaohai Chen (1): scsi: target: spc: Fix loop traversal in spc_rsoc_get_descr() Charlene Liu (3): drm/amd/display: remove minimum Dispclk and apply oem panel timing. drm/amd/display: fix dcn4x init failed drm/amd/display: pass calculated dram_speed_mts to dml2 Charles Keepax (3): ASoC: rt722-sdca: Add some missing readable registers ASoC: cs42l43: Disable headphone clamps during type detection soundwire: bus: Fix race on the creation of the IRQ domain Chen Linxuan (1): blk-cgroup: improve policy registration error handling Chenyuan Yang (2): ASoC: sma1307: Add NULL check in sma1307_setting_loaded() ASoC: imx-card: Adjust over allocation of memory in imx_card_parse_of() Chih-Kang Chang (1): wifi: rtw89: Parse channel from IE to correct invalid hardware reports during scanning Chin-Ting Kuo (1): watchdog: aspeed: Update bootstatus handling Ching-Te Ku (4): wifi: rtw89: coex: Fix coexistence report not show as expected wifi: rtw89: coex: Assign value over than 0 to avoid firmware timer hang wifi: rtw89: coex: Separated Wi-Fi connecting event from Wi-Fi scan event wifi: rtw89: coex: Add protect to avoid A2DP lag while Wi-Fi connecting Choong Yong Liang (1): net: phylink: use pl->link_interface in phylink_expects_phy() Chris Lu (2): Bluetooth: btmtksdio: Check function enabled before doing close Bluetooth: btmtksdio: Do close if SDIO card removed without close Chris Morgan (2): power: supply: axp20x_battery: Update temp sensor for AXP717 from device tree mfd: axp20x: AXP717: Add AXP717_TS_PIN_CFG to writeable regs Christian Brauner (1): pidfs: improve multi-threaded exec and premature thread-group leader exit polling Christian Bruel (1): PCI: endpoint: pci-epf-test: Fix double free that causes kernel to oops Christian Göttsche (1): ext4: reorder capability check last Christian König (4): drm/amdgpu: rework how the cleaner shader is emitted v3 drm/amdgpu: rework how isolation is enforced v2 drm/amdgpu: use GFP_NOWAIT for memory allocations drm/amdgpu: remove all KFD fences from the BO on release Christoph Hellwig (3): block: mark bounce buffering as incompatible with integrity loop: check in LO_FLAGS_DIRECT_IO in loop_default_blocksize loop: don't require ->write_iter for writable files in loop_configure ChunHao Lin (1): r8169: disable RTL8126 ZRX-DC timeout Chung Chung (1): dm vdo indexer: prevent unterminated string warning Claudiu Beznea (5): phy: renesas: rcar-gen3-usb2: Move IRQ request in probe phy: renesas: rcar-gen3-usb2: Lock around hardware registers and driver data phy: renesas: rcar-gen3-usb2: Assert PLL reset on PHY power off serial: sh-sci: Update the suspend/resume support pinctrl: renesas: rzg2l: Add suspend/resume support for pull up/down Coly Li (1): badblocks: Fix a nonsense WARN_ON() which checks whether a u64 variable < 0 Cong Wang (1): sch_hfsc: Fix qlen accounting bug when using peek in hfsc_enqueue() Conor Dooley (1): RISC-V: add vector extension validation checks Cristian Ciocaltea (1): drm/rockchip: vop2: Improve display modes handling on RK3588 HDMI0 Csókás, Bence (1): net: fec: Refactor MAC reset to function Damien Le Moal (2): nvmet: pci-epf: Keep completion queues mapped nvmet: pci-epf: clear completion queue IRQ flag on delete Damon Ding (1): phy: phy-rockchip-samsung-hdptx: Swap the definitions of LCPLL_REF and ROPLL_REF Dan Carpenter (3): ASoC: sma1307: Fix error handling in sma1307_setting_loaded() pinctrl: tegra: Fix off by one in tegra_pinctrl_get_group() pmdomain: core: Fix error checking in genpd_dev_pm_attach_by_id() Dang Huynh (1): pinctrl: qcom: msm8917: Add MSM8937 wsa_reset pin Daniel Gabay (1): wifi: iwlwifi: w/a FW SMPS mode selection Daniel Gomez (2): kconfig: merge_config: use an empty file as initfile drm/xe: xe_gen_wa_oob: replace program_invocation_short_name Daniel Hsu (1): mctp: Fix incorrect tx flow invalidation condition in mctp-i2c Danny Wang (1): drm/amd/display: Do not enable replay when vtotal update is pending. Darrick J. Wong (2): block: fix race between set_blocksize and read paths block: hoist block size validation code to a separate function Dave Ertman (1): ice: Fix LACP bonds without SRIOV environment Dave Jiang (1): dmaengine: idxd: Fix ->poll() return value David (Ming Qiang) Wu (1): drm/amdgpu: read back register after written for VCN v4.0.5 David Hildenbrand (1): kernel/fork: only call untrack_pfn_clear() on VMAs duplicated for fork() David Lechner (1): iio: adc: ad7944: don't use storagebits for sizing David Plowman (1): media: i2c: imx219: Correct the minimum vblanking value David Rosca (1): drm/amdgpu: Update SRIOV video codec caps David Sterba (1): btrfs: tree-checker: adjust error code for header level check David Wang (1): module: release codetag section when module load fails David Wei (1): tools: ynl-gen: validate 0 len strings from kernel Davidlohr Bueso (6): fs/buffer: split locking for pagecache lookups fs/buffer: introduce sleeping flavors for pagecache lookups fs/buffer: use sleeping version of __find_get_block() fs/ocfs2: use sleeping version of __find_get_block() fs/jbd2: use sleeping version of __find_get_block() fs/ext4: use sleeping version of sb_find_get_block() Depeng Shao (2): media: qcom: camss: csid: Only add TPG v4l2 ctrl if TPG hardware is available media: qcom: camss: Add default case in vfe_src_pad_code Dhananjay Ugwekar (1): cpufreq: amd-pstate: Remove unnecessary driver_lock in set_boost Dian-Syuan Yang (1): wifi: rtw89: set force HE TB mode when connecting to 11ax AP Dillon Varone (5): drm/amd/display: Fix DMUB reset sequence for DCN401 drm/amd/display: Fix p-state type when p-state is unsupported drm/amd/display: Fixes for mcache programming in DML21 drm/amd/display: Ammend DCPG IP control sequences to align with HW guidance drm/amd/display: Populate register address for dentist for dcn401 Diogo Ivo (2): ACPI: PNP: Add Intel OC Watchdog IDs to non-PNP device list arm64: tegra: p2597: Fix gpio for vdd-1v8-dis regulator Dmitry Baryshkov (6): nvmem: core: fix bit offsets of more than one byte nvmem: core: verify cell's raw_len nvmem: core: update raw_len if the bit reading is required nvmem: qfprom: switch to 4-byte aligned reads phy: core: don't require set_mode() callback for phy_get_mode() to work pinctrl: qcom: switch to devm_register_sys_off_handler() Dmitry Bogdanov (1): scsi: target: iscsi: Fix timeout on deleted connection Dominik Grzegorzek (1): padata: do not leak refcount in reorder_work Dongli Zhang (1): vhost-scsi: protect vq->log_used with vq->mutex Douglas Anderson (1): drm/panel-edp: Add Starry 116KHD024006 Ed Burcher (1): ALSA: hda/realtek: Add quirk for Lenovo Yoga Pro 7 14ASP10 Eddie James (1): eeprom: ee1004: Check chip before probing Eder Zulian (1): mfd: syscon: Add check for invalid resource size Eduard Zingerman (3): bpf: don't do clean_live_states when state->loop_entry->branches > 0 bpf: copy_verifier_state() should copy 'loop_entry' field bpf: abort verification if env->cur_state->loop_entry != NULL Emily Deng (1): drm/amdgpu: Fix missing drain retry fault the last entry Emmanuel Grumbach (2): wifi: iwlwifi: fix the ECKV UEFI variable name wifi: mac80211: set ieee80211_prep_tx_info::link_id upon Auth Rx En-Wei Wu (1): Bluetooth: btusb: use skb_pull to avoid unsafe access in QCA dump handling Eric Dumazet (7): cgroup/rstat: avoid disabling irqs for O(num_cpu) posix-timers: Add cond_resched() to posix_timer_add() search loop tcp: bring back NUMA dispersion in inet_ehash_locks_alloc() tcp: be less liberal in TSEcr received while in SYN_RECV state net: flush_backlog() small changes net-sysfs: restore behavior for not running devices idpf: fix idpf_vport_splitq_napi_poll() Eric Huang (1): drm/amdkfd: fix missing L2 cache info in topology Eric Woudstra (1): net: ethernet: mtk_ppe_offload: Allow QinQ, double ETH_P_8021Q only Erick Shepherd (2): mmc: host: Wait for Vdd to settle on card power off mmc: sdhci: Disable SD card clock before changing parameters Felix Fietkau (5): wifi: mt76: scan: fix setting tx_info fields wifi: mt76: mt7996: implement driver specific get_txpower function wifi: mt76: only mark tx-status-failed frames as ACKed on mt76x0/2 wifi: mt76: mt7996: use the correct vif link for scanning/roc wifi: mt76: scan: set vif offchannel link for scanning/roc Felix Kuehling (1): drm/amdgpu: Allow P2P access through XGMI Filipe Manana (3): btrfs: fix non-empty delayed iputs list on unmount due to async workers btrfs: get zone unusable bytes while holding lock at btrfs_reclaim_bgs_work() btrfs: send: return -ENAMETOOLONG when attempting a path that is too long Flora Cui (2): drm/amdgpu/discovery: check ip_discovery fw file available drm/amdgpu: release xcp_mgr on exit Florent Revest (1): mm: fix VM_UFFD_MINOR == VM_SHADOW_STACK on USERFAULTFD=y && ARM64_GCS=y Frank Li (3): PCI: dwc: ep: Ensure proper iteration over outbound map windows PCI: dwc: Use resource start as ioremap() input in dw_pcie_pme_turn_off() i3c: master: svc: Flush FIFO before sending Dynamic Address Assignment(DAA) Frederick Lawler (1): ima: process_measurement() needlessly takes inode_lock() on MAY_READ Frediano Ziglio (1): xen: Add support for XenServer 6.1 platform device Gabor Juhos (1): arm64: dts: marvell: uDPU: define pinctrl state for alarm LEDs Gao Xiang (1): erofs: initialize decompression early Gaurav Batra (2): powerpc/pseries/iommu: memory notifier incorrectly adds TCEs for pmemory powerpc/pseries/iommu: create DDW for devices with DMA mask less than 64-bits Gašper Nemgar (1): platform/x86: ideapad-laptop: add support for some new buttons Ge Yang (1): mm/hugetlb: fix kernel NULL pointer dereference when replacing free hugetlb folios Geert Uytterhoeven (3): ipv4: ip_gre: Fix set but not used warning in ipgre_err() if IPv4-only serial: sh-sci: Save and restore more registers pmdomain: renesas: rcar: Remove obsolete nullify checks Geetha sowjanya (1): octeontx2-af: Fix APR entry mapping based on APR_LMT_CFG George Shen (3): drm/amd/display: Skip checking FRL_MODE bit for PCON BW determination drm/amd/display: Read LTTPR ALPM caps during link cap retrieval drm/amd/display: Update CR AUX RD interval interpretation Goldwyn Rodrigues (1): btrfs: correct the order of prelim_ref arguments in btrfs__prelim_ref Greg Kroah-Hartman (3): driver core: faux: only create the device if probe() succeeds spi: use container_of_cont() for to_spi_device() Linux 6.14.9 Guangguan Wang (1): net/smc: use the correct ndev to find pnetid by pnetid table Gustavo Sousa (1): drm/xe: Disambiguate GMDID-based IP names Hangbin Liu (1): bonding: report duplicate MAC address in all situations Hans Verkuil (2): media: cx231xx: set device_caps for 417 media: test-drivers: vivid: don't call schedule in loop Hans de Goede (1): mei: vsc: Use struct vsc_tp_packet as vsc-tp tx_buf and rx_buf type Hans-Frieder Vogt (2): net: tn40xx: add pci-id of the aqr105-based Tehuti TN4010 cards net: tn40xx: create swnode for mdio and aqr105 phy and add to mdiobus Haoran Jiang (1): samples/bpf: Fix compilation failure for samples/bpf on LoongArch Fedora Hariprasad Kelam (1): Octeontx2-af: RPM: Register driver with PCI subsys IDs Harish Kasiviswanathan (3): drm/amdkfd: Set per-process flags only once for gfx9/10/11/12 drm/amdkfd: Set per-process flags only once cik/vi drm/amdgpu: Set snoop bit for SDMA for MI series Harry VanZyllDeJong (1): drm/amd/display: Add support for disconnected eDP streams Harry Wentland (1): drm/amd/display: Don't treat wb connector as physical in create_validate_stream_for_sink Hector Martin (4): soc: apple: rtkit: Implement OSLog buffers properly ASoC: tas2764: Add reg defaults for TAS2764_INT_CLK_CFG ASoC: tas2764: Mark SW_RESET as volatile ASoC: tas2764: Power up/down amp on mute ops Heiko Carstens (1): s390/tlb: Use mm_has_pgste() instead of mm_alloc_pgste() Heiko Stuebner (2): nvmem: rockchip-otp: Move read-offset into variant-data nvmem: rockchip-otp: add rk3576 variant data Heiner Kallweit (2): r8169: increase max jumbo packet size on RTL8125/RTL8126 r8169: don't scan PHY addresses > 0 Heming Zhao (1): dlm: make tcp still work in multi-link env Herbert Xu (3): crypto: lzo - Fix compression buffer overrun crypto: ahash - Set default reqsize from ahash_alg crypto: skcipher - Zap type in crypto_alloc_sync_skcipher Huacai Chen (1): net: stmmac: dwmac-loongson: Set correct {tx,rx}_fifo_size Huisong Li (1): hwmon: (acpi_power_meter) Fix the fake power alarm reporting Ian Rogers (1): tools/build: Don't pass test log files to linker Ido Schimmel (2): vxlan: Annotate FDB data races bridge: netfilter: Fix forwarding of fragmented packets Ignacio Moreno Gonzalez (1): mm: mmap: map MAP_STACK to VM_NOHUGEPAGE only if THP is enabled Ihor Solodrai (1): selftests/bpf: Mitigate sockmap_ktls disconnect_after_delete failure Ilan Peer (2): wifi: cfg80211: Update the link address when a link is added wifi: mac80211_hwsim: Fix MLD address translation Ilia Gavrilov (1): llc: fix data loss when reading from a socket in llc_ui_recvmsg() Ilpo Järvinen (2): tcp: reorganize tcp_in_ack_event() and tcp_count_delivered() PCI: Fix old_size lower bound in calculate_iosize() too Ilya Bakoulin (2): drm/amd/display: Fix BT2020 YCbCr limited/full range input drm/amd/display: Don't try AUX transactions on disconnected link Imre Deak (1): drm/i915/dp: Fix determining SST/MST mode during MTP TU state computation Ingo Molnar (1): x86/stackprotector/64: Only export __ref_stack_chk_guard on CONFIG_SMP Inochi Amaoto (1): pinctrl: sophgo: avoid to modify untouched bit when setting cv1800 pinconf Isaac Scott (1): regulator: ad5398: Add device tree support Ivan Pravdin (1): crypto: algif_hash - fix double free in hash_accept Jaakko Karrenpalo (1): net: hsr: Fix PRP duplicate detection Jacob Keller (1): ice: fix vf->num_mac count with port representors Jaegeuk Kim (1): f2fs: introduce f2fs_base_attr for global sysfs entries Jakob Unterwurzacher (1): net: dsa: microchip: linearize skb for tail-tagging switches Jakub Kicinski (4): eth: mlx4: don't try to complete XDP frames in netpoll netdevsim: allow normal queue reset while down net: page_pool: avoid false positive warning if NAPI was never added tools: ynl-gen: don't output external constants Jan Kara (2): jbd2: do not try to recover wiped journal jbd2: Avoid long replay times due to high number or revoke blocks Janne Grunau (1): soc: apple: rtkit: Use high prio work queue Jason Andryuk (1): xenbus: Allow PVH dom0 a non-local xenstore Jason Gunthorpe (2): iommu/vt-d: Check if SVA is supported when attaching the SVA domain genirq/msi: Store the IOMMU IOVA directly in msi_desc instead of iommu_cookie Jedrzej Jagielski (1): ixgbe: add support for thermal sensor event reception Jeff Chen (1): wifi: mwifiex: Fix HT40 bandwidth issue. Jens Axboe (2): io_uring/fdinfo: annotate racy sq/cq head/tail reads io_uring/net: only retry recv bundle for a full transfer Jernej Skrabec (1): Revert "arm64: dts: allwinner: h6: Use RSB for AXP805 PMIC connection" Jessica Zhang (2): drm/msm/dpu: Set possible clones for all encoders drm: Add valid clones check Jianbo Liu (1): net/mlx5e: Add correct match to check IPSec syndromes for switchdev mode Jiang Liu (2): drm/amdgpu: reset psp->cmd to NULL after releasing the buffer amdgpu/soc15: enable asic reset for dGPU in case of suspend abort Jiasheng Jiang (1): dpll: Add an assertion to check freq_supported_num Jiayuan Chen (1): bpftool: Using the right format specifiers Jing Su (1): dql: Fix dql->limit value when reset. Jing Zhou (1): drm/amd/display: Guard against setting dispclk low for dcn31x Jinliang Zheng (1): dm: fix unconditional IO throttle caused by REQ_PREFLUSH Jinqian Yang (1): arm64: Add support for HIP09 Spectre-BHB mitigation Johannes Berg (11): wifi: iwlwifi: fix debug actions order wifi: iwlwifi: mark Br device not integrated wifi: mac80211: don't include MLE in ML reconf per-STA profile wifi: mac80211: fix warning on disconnect during failed ML reconf wifi: mac80211: fix U-APSD check in ML reconfiguration wifi: iwlwifi: use correct IMR dump variable wifi: mac80211: always send max agg subframe num in strict mode wifi: mac80211: don't unconditionally call drv_mgd_complete_tx() wifi: mac80211: remove misplaced drv_mgd_complete_tx() call wifi: iwlwifi: add support for Killer on MTL wifi: mac80211: restore monitor for outgoing frames Johannes Thumshirn (1): block: only update request sector if needed John Harrison (1): drm/xe/guc: Drop error messages about missing GuC logs John Olender (1): drm/amd/display: Defer BW-optimization-blocked DRR adjustments Jon Hunter (1): arm64: tegra: Resize aperture for the IGX PCIe C5 slot Jonas Karlman (1): net: stmmac: dwmac-rk: Validate GRF and peripheral GRF during probe Jonathan Kim (1): drm/amdkfd: set precise mem ops caps to disabled for gfx 11 and 12 Jonathan McDowell (1): tpm: Convert warn to dbg in tpm2_start_auth_session() Jordan Crouse (1): clk: qcom: camcc-sm8250: Use clk_rcg2_shared_ops for some RCGs Josh Poimboeuf (2): objtool: Properly disable uaccess validation objtool: Fix error handling inconsistencies in check() Joshua Aberback (1): drm/amd/display: Increase block_sequence array size Judith Mendez (1): mmc: sdhci_am654: Add SDHCI_QUIRK2_SUPPRESS_V1P8_ENA quirk to am62 compatible Justin Tee (4): scsi: lpfc: Handle duplicate D_IDs in ndlp search-by D_ID routine scsi: lpfc: Ignore ndlp rport mismatch in dev_loss_tmo callbk scsi: lpfc: Free phba irq in lpfc_sli4_enable_msi() when pci_irq_vector() fails scsi: lpfc: Reduce log message generation during ELS ring clean up K Prateek Nayak (1): fs/pipe: Limit the slots in pipe_resize_ring() Kai Mäkisara (4): scsi: st: Tighten the page format heuristics with MODE SELECT scsi: st: ERASE does not change tape location scsi: scsi_debug: First fixes for tapes scsi: st: Restore some drive settings after reset Kai Vehmanen (1): ASoc: SOF: topology: connect DAI to a single DAI link Karl Chan (1): clk: qcom: ipq5018: allow it to be bulid on arm32 Karthikeyan Periyasamy (1): wifi: ath12k: Update the peer id in PPDU end user stats TLV Kate Hsuan (1): HID: Kconfig: Add LEDS_CLASS_MULTICOLOR dependency to HID_LOGITECH Kaustabh Chakraborty (1): mmc: dw_mmc: add exynos7870 DW MMC support Kees Cook (6): PNP: Expand length of fixup id string net/mlx4_core: Avoid impossible mlx4_db_alloc() order value pstore: Change kmsg_bytes storage size to u32 btrfs: compression: adjust cb->compressed_folios allocation type mm: vmalloc: actually use the in-place vrealloc region mm: vmalloc: only zero-init on vrealloc shrink Kevin Krakauer (1): selftests/net: have `gro.sh -t` return a correct exit code Konstantin Andreev (2): smack: recognize ipv4 CIPSO w/o categories smack: Revert "smackfs: Added check catlen" Konstantin Shkolnyy (1): vdpa/mlx5: Fix mlx5_vdpa_get_config() endianness on big-endian machines Konstantin Taranov (1): net/mana: fix warning in the writer of client oob Krzysztof Kozlowski (7): ASoC: codecs: wsa884x: Correct VI sense channel mask ASoC: codecs: wsa883x: Correct VI sense channel mask can: c_can: Use of_property_present() to test existence of DT property clk: qcom: clk-alpha-pll: Do not use random stack value for recalc rate iio: accel: fxls8962af: Fix wakeup source leaks on device unbind iio: adc: qcom-spmi-iadc: Fix wakeup source leaks on device unbind iio: imu: st_lsm6dsx: Fix wakeup source leaks on device unbind Kuan-Chung Chen (1): wifi: rtw89: 8922a: fix incorrect STA-ID in EHT MU PPDU Kuhanh Murugasen Krishnan (1): fpga: altera-cvp: Increase credit timeout Kunihiko Hayashi (1): net: stmmac: Correct usage of maximum queue number macros Kuninori Morimoto (1): ASoC: soc-dai: check return value at snd_soc_dai_set_tdm_slot() Kuniyuki Iwashima (3): ipv4: fib: Move fib_valid_key_len() to rtm_to_fib_config(). ipv4: fib: Hold rtnl_net_lock() in ip_rt_ioctl(). ip: fib_rules: Fetch net from fib_rule in fib[46]_rule_configure(). Kurt Borja (1): hwmon: (dell-smm) Increment the number of fans Kyunghwan Seo (1): watchdog: s3c2410_wdt: Fix PMU register bits for ExynosAutoV920 SoC Lad Prabhakar (1): clk: renesas: rzg2l-cpg: Refactor Runtime PM clock validation Larisa Grigore (2): spi: spi-fsl-dspi: restrict register range for regmap access spi: spi-fsl-dspi: Reset SR flags before sending a new message Lee Trager (1): eth: fbnic: Prepend TSENE FW fields with FBNIC_FW Len Brown (1): tools/power turbostat: Clustered Uncore MHz counters should honor show/hide options Leo Zeng (1): Revert "drm/amd/display: Request HW cursor on DCN3.2 with SubVP" Leon Huang (1): drm/amd/display: Fix incorrect DPCD configs while Replay/PSR switch Leon Romanovsky (1): xfrm: prevent high SEQ input in non-ESN mode Li Bin (1): ARM: at91: pm: fix at91_suspend_finish for ZQ calibration Lijo Lazar (5): drm/amdgpu: Reinit FW shared flags on VCN v5.0.1 drm/amdgpu: Avoid HDP flush on JPEG v5.0.1 drm/amdgpu: Add offset normalization in VCN v5.0.1 drm/amd/pm: Fetch current power limit from PMFW drm/amdgpu: Use active umc info from discovery Lin.Cao (1): drm/buddy: fix issue that force_merge cannot free all roots Lingbo Kong (2): wifi: ath12k: report station mode receive rate for IEEE 802.11be wifi: ath12k: report station mode transmit rate Linus Torvalds (3): gcc-15: make 'unterminated string initialization' just a warning gcc-15: disable '-Wunterminated-string-initialization' entirely for now Fix mis-uses of 'cc-option' for warning disablement Linus Walleij (1): ASoC: pcm6240: Drop bogus code handling IRQ as GPIO Lizhi Hou (2): accel/amdxdna: Check interrupt register before mailbox_rx_worker exits accel/amdxdna: Refactor hardware context destroy routine Lorenzo Stoakes (1): intel_th: avoid using deprecated page->mapping, index fields Lucas De Marchi (2): drm/xe: Stop ignoring errors from xe_ttm_stolen_mgr_init() drm/xe: Fix xe_tile_init_noalloc() error propagation Luis de Arquer (1): spi-rockchip: Fix register out of bounds access Luiz Augusto von Dentz (1): Bluetooth: L2CAP: Fix not checking l2cap_chan security level Maarten Lankhorst (2): drm/xe: Move suballocator init to after display init drm/xe: Do not attempt to bootstrap VF in execlists mode Maciej S. Szmigiero (1): ALSA: hda/realtek: Enable PC beep passthrough for HP EliteBook 855 G7 Maher Sanalla (1): RDMA/uverbs: Propagate errors from rdma_lookup_get_uobject() Manish Pandey (1): scsi: ufs: Introduce quirk to extend PA_HIBERN8TIME for UFS devices Manuel Fombuena (2): leds: Kconfig: leds-st1202: Add select for required LEDS_TRIGGER_PATTERN leds: leds-st1202: Initialize hardware before DT node child operations Marcin Bernatowicz (1): drm/xe/client: Skip show_run_ticks if unable to read timestamp Marcos Paulo de Souza (1): printk: Check CON_SUSPEND when unblanking a console Marek Szyprowski (1): dma-mapping: avoid potential unused data compilation warning Marek Vasut (1): leds: trigger: netdev: Configure LED blink interval for HW offload Mario Limonciello (2): x86/amd_node: Add SMN offsets to exclusive region access Revert "drm/amd: Keep display off while going into S4" Mark Harmstone (1): btrfs: avoid linker error in btrfs_find_create_tree_block() Mark Pearson (1): platform/x86: think-lmi: Fix attribute name usage for non-compliant items Mark Zhang (1): net/mlx5e: Use right API to free bitmap memory Markus Elfring (1): media: c8sectpfe: Call of_node_put(i2c_bus) only once in c8sectpfe_probe() Martin Blumenstingl (1): pinctrl: meson: define the pull up/down resistor value as 60 kOhm Martin KaFai Lau (1): bpf: Use kallsyms to find the function name of a struct_ops's stub function Martin Povišer (1): ASoC: ops: Enforce platform maximum on initial value Martin Tsai (1): drm/amd/display: Support multiple options during psr entry. Masahiro Yamada (1): kconfig: do not clear SYMBOL_VALID when reading include/config/auto.conf Matt Johnston (1): fuse: Return EPERM rather than ENOSYS from link() Matthew Brost (2): drm/xe: Nuke VM's mapping upon close drm/xe: Retry BO allocation Matthew Sakai (1): dm vdo: use a short static string for thread name prefix Matthew Wilcox (Oracle) (2): orangefs: Do not truncate file size highmem: add folio_test_partial_kmap() Matthias Fend (1): media: tc358746: improve calculation of the D-PHY timing registers Matthieu Baerts (NGI0) (1): mptcp: pm: userspace: flags: clearer msg if no remote addr Matti Lehtimäki (2): remoteproc: qcom_wcnss: Handle platforms with only single power domain remoteproc: qcom_wcnss: Fix on platforms without fallback regulators Michael Chan (1): bnxt_en: Set NPAR 1.2 support when registering with firmware Michael Jeanson (1): rseq: Fix segfault on registration when rseq_cs is non-zero Michael Margolin (1): RDMA/core: Fix best page size finding when it can cross SG entries Michael S. Tsirkin (2): virtio: break and reset virtio devices on device_shutdown() virtgpu: don't reset on shutdown Michal Pecio (1): usb: xhci: Don't change the status of stalled TDs on failed Stop EP Michal Swiatkowski (3): ice: init flow director before RDMA ice: treat dyn_allowed only as suggestion ice: count combined queues using Rx/Tx count Michal Wajdeczko (7): drm/xe/pf: Release all VFs configs on device removal drm/xe/relay: Don't use GFP_KERNEL for new transactions drm/xe/pf: Reset GuC VF config when unprovisioning critical resource drm/xe/pf: Move VFs reprovisioning to worker drm/xe/sa: Always call drm_suballoc_manager_fini() drm/xe/vf: Perform early GT MMIO initialization to read GMDID drm/xe: Always setup GT MMIO adjustment data Mika Westerberg (1): thunderbolt: Do not add non-active NVM if NVM upgrade is disabled for retimer Mike Christie (1): vhost-scsi: Return queue full for page alloc failures during copy Mikulas Patocka (1): dm: restrict dm device size to 2^63-512 bytes Ming Lei (2): loop: move vfs_fsync() out of loop_update_dio() blk-throttle: don't take carryover for prioritized processing of metadata Ming Yen Hsieh (1): wifi: mt76: mt7925: load the appropriate CLC data based on hardware type Ming-Hung Tsai (1): dm cache: prevent BUG_ON by blocking retries on failed device resumes Miri Korenblit (2): wifi: iwlwifi: don't warn when if there is a FW error wifi: iwlwifi: don't warn during reprobe Moshe Shemesh (1): net/mlx5: Avoid report two health errors on same syndrome Mrinmay Sarkar (1): PCI: epf-mhi: Update device ID for SA8775P Mukesh Kumar Savaliya (1): i2c: qcom-geni: Update i2c frequency table to match hardware guidance Mykyta Yatsenko (1): bpf: Return prog btf_id without capable check Naman Trivedi (1): arm64: zynqmp: add clock-output-names property in clock nodes Namjae Jeon (2): cifs: add validation check for the fields in smb_aces ksmbd: fix stream write failure Nandakumar Edamana (1): libbpf: Fix out-of-bound read Nathan Chancellor (2): i3c: master: svc: Fix implicit fallthrough in svc_i3c_master_ibi_work() kbuild: Properly disable -Wunterminated-string-initialization for clang Navid Assadian (1): drm/amd/display: Add opp recout adjustment Nicholas Kazlauskas (2): drm/amd/display: Ensure DMCUB idle before reset on DCN31/DCN35 drm/amd/display: Guard against setting dispclk low when active Nicholas Susanto (1): drm/amd/display: Enable urgent latency adjustment on DCN35 Nick Hu (1): clocksource/drivers/timer-riscv: Stop stimecmp when cpu hotplug Nicolas Bouchinet (2): netfilter: conntrack: Bound nf_conntrack sysctl writes scsi: logging: Fix scsi_logging_level bounds Nicolas Bretz (1): ext4: on a remount, only log the ro or r/w state when it has changed Nicolas Escande (1): wifi: ath12k: fix ath12k_hal_tx_cmd_ext_desc_setup() info1 override Niklas Cassel (2): misc: pci_endpoint_test: Give disabled BARs a distinct error code selftests: pci_endpoint: Skip disabled BARs Niklas Neronin (1): usb: xhci: set page size to the xHCI-supported size Niklas Söderlund (1): media: adv7180: Disable test-pattern control on adv7180 Nilay Shroff (1): block: acquire q->limits_lock while reading sysfs attributes Nir Lichtman (1): x86/build: Fix broken copy command in genimage.sh when making isoimage Nícolas F. R. A. Prado (4): thermal/drivers/mediatek/lvts: Start sensor interrupts disabled ASoC: mediatek: mt6359: Add stub for mt6359_accdet_enable_jack_detect ASoC: mediatek: mt8188: Treat DMIC_GAINx_CUR as non-volatile ASoC: mediatek: mt8188: Add reference for dmic clocks Oak Zeng (1): drm/xe: Reject BO eviction if BO is bound to current VM Oliver Hartkopp (2): can: bcm: add locking for bcm_op runtime updates can: bcm: add missing rcu read protection for procfs content Olivier Moysan (1): drm: bridge: adv7511: fill stream capabilities Ovidiu Bunea (1): drm/amd/display: Exit idle optimizations before accessing PHY P Praneesh (3): wifi: ath12k: fix the ampdu id fetch in the HAL_RX_MPDU_START TLV wifi: ath12k: Fix end offset bit definition in monitor ring descriptor wifi: ath11k: Use dma_alloc_noncoherent for rx_tid buffer allocation Pali Rohár (10): cifs: Add fallback for SMB2 CREATE without FILE_READ_ATTRIBUTES cifs: Fix querying and creating MF symlinks over SMB1 cifs: Fix access_flags_to_smbopen_mode cifs: Fix negotiate retry functionality cifs: Set default Netbios RFC1001 server name to hostname in UNC cifs: Fix establishing NetBIOS session for SMB2+ connection cifs: Fix getting DACL-only xattr system.cifs_acl and system.smb3_acl cifs: Check if server supports reparse points before using them cifs: Fix and improve cifs_query_path_info() and cifs_query_file_info() cifs: Fix changing times and read-only attr over SMB1 smb_set_file_info() function Paolo Abeni (1): mr: consolidate the ipmr_can_free_table() checks. Patrisious Haddad (1): net/mlx5: Change POOL_NEXT_SIZE define value and make it global Paul Burton (2): MIPS: pm-cps: Use per-CPU variables as per-CPU, not per-core clocksource: mips-gic-timer: Enable counter when CPUs start Paul Chaignon (1): xfrm: Sanitize marks before insert Paul E. McKenney (1): rcu: Fix get_state_synchronize_rcu_full() GP-start detection Paul Elder (1): media: imx335: Set vblank immediately Paul Kocialkowski (1): net: dwmac-sun8i: Use parsed internal PHY address instead of 1 Pavan Kumar Linga (1): idpf: fix null-ptr-deref in idpf_features_check Pavel Begunkov (4): io_uring: don't duplicate flushing in io_req_post_cqe io_uring/msg: initialise msg request opcode io_uring: sanitise ring params earlier io_uring: fix overflow resched cqe reordering Pavel Nikulin (1): platform/x86: asus-wmi: Disable OOBE state after resume from hibernation Paweł Anikiel (1): x86/Kconfig: make CFI_AUTO_DEFAULT depend on !RUST or Rust >= 1.88 Pedro Nishiyama (1): Bluetooth: Disable SCO support if READ_VOICE_SETTING is unsupported/broken Peichen Huang (1): drm/amd/display: not abort link train when bw is low Pengyu Luo (1): cpufreq: Add SM8650 to cpufreq-dt-platdev blocklist Peter Seiderer (2): net: pktgen: fix mpls maximum labels list parsing net: pktgen: fix access outside of user given buffer in pktgen_thread_write() Peter Ujfalusi (3): ASoC: SOF: ipc4-control: Use SOF_CTRL_CMD_BINARY as numid for bytes_ext ASoC: SOF: Intel: hda-bus: Use PIO mode on ACE2+ platforms ASoC: SOF: ipc4-pcm: Delay reporting is only supported for playback direction Peter Zijlstra (5): perf/core: Clean up perf_try_init_event() perf/core: Fix perf_mmap() failure path x86/ibt: Handle FineIBT in handle_cfi_failure() x86/traps: Cleanup and robustify decode_bug() x86/boot: Mark start_secondary() with __noendbr Peter Zijlstra (Intel) (1): perf: Avoid the read if the count is already updated Peterson Guo (1): drm/amd/display: Reverse the visual confirm recouts Petr Machata (2): vxlan: Join / leave MC group after remote changes bridge: mdb: Allow replace of a host-joined group Philip Redkin (1): x86/mm: Check return value from memblock_phys_alloc_range() Philip Yang (1): drm/amdkfd: KFD release_work possible circular locking Philippe Simons (1): clk: sunxi-ng: h616: Reparent GPU clock during frequency changes Ping-Ke Shih (7): wifi: rtw89: fw: propagate error code from rtw89_h2c_tx() wifi: rtw89: fw: get sb_sel_ver via get_unaligned_le32() wifi: rtw89: fw: add blacklist to avoid obsolete secure firmware wifi: rtw89: fw: validate multi-firmware header before getting its size wifi: rtw89: fw: validate multi-firmware header before accessing wifi: rtw89: call power_on ahead before selecting firmware wifi: rtw89: add wiphy_lock() to work that isn't held wiphy_lock() yet Prathamesh Shete (1): pinctrl-tegra: Restore SFSEL bit when freeing pins Qu Wenruo (2): btrfs: run btrfs_error_commit_super() early btrfs: avoid NULL pointer dereference if no valid csum tree Quan Zhou (2): wifi: mt76: mt7925: Simplify HIF suspend handling to avoid suspend fail wifi: mt76: mt7925: fix fails to enter low power mode in suspend state Raag Jadav (2): devres: Introduce devm_kmemdup_array() err.h: move IOMEM_ERR_PTR() to err.h Rae Moar (1): kunit: tool: Fix bug in parsing test plan Rafael J. Wysocki (1): cpuidle: menu: Avoid discarding useful information Ramasamy Kaliappan (1): wifi: ath12k: Improve BSS discovery with hidden SSID in 6 GHz band Ranjan Kumar (2): scsi: mpi3mr: Add level check to control event logging scsi: mpi3mr: Update timestamp only for supervisor IOCs Ravi Bangoria (2): perf/amd/ibs: Fix perf_ibs_op.cnt_mask for CurCnt perf/amd/ibs: Fix ->config to sample period calculation for OP PMU Rex Lu (1): wifi: mt76: mt7996: fix SER reset trigger on WED reset Ricardo Ribalda (2): media: uvcvideo: Add sanity check to uvc_ioctl_xu_ctrl_map media: uvcvideo: Handle uvc menu translation inside uvc_get_le_value Rik van Riel (1): x86/mm: Make MMU_GATHER_RCU_TABLE_FREE unconditional Ritesh Harjani (IBM) (1): book3s64/radix: Fix compile errors when CONFIG_ARCH_WANT_OPTIMIZE_DAX_VMEMMAP=n Rob Herring (Arm) (1): perf: arm_pmuv3: Call kvm_vcpu_pmu_resync_el0() before enabling counters Robert Richter (1): libnvdimm/labels: Fix divide error in nd_label_data_init() Robin Murphy (1): iommu: Keep dev->iommu state consistent Rodrigo Vivi (2): drm/xe/display: Remove hpd cancel work sync from runtime pm path drm/xe: Fix PVC RPe and RPa information Roger Pau Monne (2): PCI: vmd: Disable MSI remapping bypass under Xen xen/pci: Do not register devices with segments >= 0x10000 Roger Quadros (1): dmaengine: ti: k3-udma-glue: Drop skip_fdq argument from k3_udma_glue_reset_rx_chn Ronak Doshi (1): vmxnet3: update MTU after device quiesce Rosen Penev (1): wifi: ath9k: return by of_get_mac_address Ryan Roberts (2): arm64/mm: Check pmd_table() in pmd_trans_huge() arm64/mm: Check PUD_TYPE_TABLE in pud_bad() Ryan Walklin (2): ASoC: sun4i-codec: support hp-det-gpios property ASoC: sun4i-codec: correct dapm widgets and controls for h616 Ryo Takakura (1): lockdep: Fix wait context check on softirq for PREEMPT_RT Ryusuke Konishi (1): nilfs2: fix deadlock warnings caused by lock dependency in init_nilfs() Sabrina Dubroca (2): espintcp: fix skb leaks espintcp: remove encap socket caching to avoid reference leak Sagi Maimon (1): ptp: ocp: Limit signal/freq counts in summary output functions Sakari Ailus (2): media: v4l: Memset argument to 0 before calling get_mbus_config pad op media: i2c: ov2740: Free control handler on error path Saket Kumar Bhaskar (1): perf/hw_breakpoint: Return EOPNOTSUPP for unsupported breakpoint type Salah Triki (1): smb: server: smb2pdu: check return value of xa_store() Samiullah Khawaja (1): xsk: Bring back busy polling support in XDP_COPY Samson Tam (3): drm/amd/display: fix check for identity ratio drm/amd/display: Fix mismatch type comparison in custom_float drm/amd/display: remove TF check for LLS policy Samuel Holland (1): riscv: Allow NOMMU kernels to access all of RAM Saranya Gopal (1): platform/x86/intel: hid: Add Pantherlake support Satyanarayana K V P (2): drm/xe/vf: Retry sending MMIO request to GUC on timeout error drm/xe/pf: Create a link between PF and VF devices Sean Anderson (1): spi: zynqmp-gqspi: Always acknowledge interrupts Sean Wang (1): Bluetooth: btmtksdio: Prevent enabling interrupts after IRQ handler removal Seongman Lee (1): x86/sev: Fix operator precedence in GHCB_MSR_VMPL_REQ_LEVEL macro Sergio Perez Gonzalez (1): spi: spi-mux: Fix coverity issue, unchecked return value Seyediman Seyedarab (1): kbuild: fix argument parsing in scripts/config Shahar Shitrit (2): net/mlx5: Modify LSB bitmask in temperature event to include only the first bit net/mlx5: Apply rate-limiting to high temperature warning Shashank Gupta (1): crypto: octeontx2 - suppress auth failure screaming due to negative tests Shayne Chen (1): wifi: mt76: Check link_conf pointer in mt76_connac_mcu_sta_basic_tlv() Shin'ichiro Kawasaki (1): null_blk: generate null_blk configfs features string Shivasharan S (1): scsi: mpt3sas: Send a diag reset if target reset fails Shiwu Zhang (1): drm/amdgpu: enlarge the VBIOS binary size limit Shixiong Ou (1): fbdev: fsl-diu-fb: add missing device_remove_file() Shree Ramamoorthy (1): mfd: tps65219: Remove TPS65219_REG_TI_DEV_ID check Shuicheng Lin (2): drm/xe/debugfs: Add missing xe_pm_runtime_put in wedge_mode_set drm/xe: Use xe_mmio_read32() to read mtcfg register Shyam Sundar S K (1): i2c: amd-asf: Set cmd variable when encountering an error Simona Vetter (1): drm/atomic: clarify the rules around drm_atomic_state->allow_modeset Siva Durga Prasad Paladugu (1): firmware: xilinx: Dont send linux address to get fpga config get status Soeren Moch (1): wifi: rtl8xxxu: retry firmware download on error Sohil Mehta (2): x86/smpboot: Fix INIT delay assignment for extended Intel Families x86/microcode: Update the Intel processor flag scan check Song Liu (1): bpf: arm64: Silence "UBSAN: negation-overflow" warning Song Yoong Siang (1): igc: Avoid unnecessary link down event in XDP_SETUP_PROG process Srinivasan Shanmugam (2): drm/amdgpu/gfx10: Add cleaner shader for GFX10.1.10 drm/amdkfd: Fix error handling for missing PASID in 'kfd_process_device_init_vm' Stanimir Varbanov (2): PCI: brcmstb: Expand inbound window size up to 64GB PCI: brcmstb: Add a softdep to MIP MSI-X driver Stanley Chu (1): i3c: master: svc: Fix missing STOP for master request Stefan Binding (2): ASoC: intel/sdw_utils: Add volume limit to cs42l43 speakers ASoC: intel/sdw_utils: Add volume limit to cs35l56 speakers Stefan Wahren (3): staging: vchiq_arm: Create keep-alive thread during probe drm/v3d: Add clock handling dmaengine: fsl-edma: Fix return code for unhandled interrupts Stefano Garzarella (1): vhost_task: fix vhost_task_create() documentation Stephan Gerhold (1): i2c: qup: Vote for interconnect bandwidth to DRAM Steven Rostedt (1): ring-buffer: Use kaslr address instead of text delta Subbaraya Sundeep (1): octeontx2-af: Set LMT_ENA bit for APR table entries Subramanian Mohan (1): pps: generators: replace copy of pps-gen info struct with const pointer Sudeep Holla (4): mailbox: pcc: Use acpi_os_ioremap() instead of ioremap() firmware: arm_ffa: Reject higher major version as incompatible firmware: arm_ffa: Handle the presence of host partition in the partition info firmware: arm_scmi: Relax duplicate name constraint across protocol ids Suman Ghosh (4): octeontx2-pf: use xdp_return_frame() to free xdp buffers octeontx2-pf: Add AF_XDP non-zero copy support octeontx2-pf: AF_XDP zero copy receive support octeontx2-pf: Avoid adding dcbnl_ops for LBK and SDP vf Sungjong Seo (1): exfat: call bh_read in get_block only when necessary Sunil Khatri (1): drm/ttm: fix the warning for hit_low and evict_low Suren Baghdasaryan (1): alloc_tag: allocate percpu counters for module tags dynamically Sven Schwermer (1): crypto: mxs-dcp - Only set OTP_KEY bit for OTP key Svyatoslav Ryhel (1): ARM: tegra: Switch DSI-B clock parent to PLLD on Tegra114 Takashi Iwai (5): ALSA: seq: Improve data consistency at polling ASoC: Intel: bytcr_rt5640: Add DMI quirk for Acer Aspire SW3-013 ALSA: hda/realtek: Add quirk for HP Spectre x360 15-df1xxx ALSA: usb-audio: Fix duplicated name in MIDI substream names ALSA: pcm: Fix race of buffer access at PCM OSS layer Taniya Das (1): clk: qcom: lpassaudiocc-sc7280: Add support for LPASS resets for QCM6490 Tao Zhou (1): drm/amdgpu: increase RAS bad page threshold Tavian Barnes (1): ASoC: SOF: Intel: hda: Fix UAF when reloading module Thangaraj Samynathan (1): net: lan743x: Restore SGMII CTRL register on resume Thippeswamy Havalige (1): PCI: xilinx-cpm: Add cpm_csr register mapping for CPM5_HOST1 variant Thomas Gleixner (1): posix-timers: Ensure that timer initialization is fully visible Thomas Huth (2): x86/headers: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-UAPI headers x86/headers: Replace __ASSEMBLY__ with __ASSEMBLER__ in UAPI headers Thomas Weißschuh (1): timer_list: Don't use %pK through printk() Thomas Zimmermann (4): drm/gem: Test for imported GEM buffers with helper drm/ast: Find VBIOS mode from regular display size drm/ast: Hide Gens 1 to 3 TX detection in branch drm/gem: Internally test import_attach for imported objects Tianyang Zhang (1): mm/page_alloc.c: avoid infinite retries caused by cpuset race Tiwei Bie (1): um: Update min_low_pfn to match changes in uml_reserved Tobias Brunner (1): xfrm: Fix UDP GRO handling for some corner cases Tom Chung (1): drm/amd/display: Initial psr_version with correct setting Trond Myklebust (7): NFSv4: Check for delegation validity in nfs_start_delegation_return_locked() NFS: Don't allow waiting for exiting tasks SUNRPC: Don't allow waiting for exiting tasks NFSv4: Treat ENETUNREACH errors as fatal for state recovery SUNRPC: rpc_clnt_set_transport() must not change the autobind setting SUNRPC: rpcbind should never reset the port to the value '0' pNFS/flexfiles: Report ENETDOWN as a connection error Tudor Ambarus (1): mailbox: use error ret code of of_parse_phandle_with_args() Uday Shankar (1): ublk: enforce ublks_max only for unprivileged devices Umesh Nerlige Ramappa (1): drm/xe/oa: Ensure that polled read returns latest data Uros Bizjak (1): x86/locking: Use ALT_OUTPUT_SP() for percpu_{,try_}cmpxchg{64,128}_op() Valentin Caron (1): pinctrl: devicetree: do not goto err when probing hogs in pinctrl_dt_to_map Vasant Hegde (1): iommu/amd/pgtbl_v2: Improve error handling Vicki Pfau (1): Input: xpad - add more controllers Victor Lu (1): drm/amdgpu: Do not program AGP BAR regs under SRIOV in gfxhub_v1_0.c Victor Skvortsov (2): drm/amdgpu: Skip pcie_replay_count sysfs creation for VF drm/amdgpu: Skip err_count sysfs creation on VF unsupported RAS blocks Vijendar Mukunda (1): soundwire: amd: change the soundwire wake enable/disable sequence Viktor Malik (1): bpftool: Fix readlink usage in get_fd_type Vinay Belgaumkar (1): drm/xe: Add locks in gtidle code Vinicius Costa Gomes (1): dmaengine: idxd: Fix allowing write() from different address spaces Vinith Kumar R (1): wifi: ath12k: Report proper tx completion status to mac80211 Viresh Kumar (1): firmware: arm_ffa: Set dma_mask for ffa devices Vitalii Mordan (1): i2c: pxa: fix call balance of i2c->clk handling routines Vitaliy Shevtsov (1): media: cec: use us_to_ktime() where appropriate Vladimir Kondratiev (1): irqchip/riscv-aplic: Add support for hart indexes Vladimir Moskovkin (1): platform/x86: dell-wmi-sysman: Avoid buffer overflow in current_password_store() Waiman Long (1): x86/nmi: Add an emergency handler in nmi_desc & use it in nmi_shootdown_cpus() Wang Liang (1): net/tipc: fix slab-use-after-free Read in tipc_aead_encrypt_done Wang Yaxin (1): taskstats: fix struct taskstats breaks backward compatibility since version 15 Wang Zhaolong (3): smb: client: Store original IO parameters and prevent zero IO sizes smb: client: Fix use-after-free in cifs_fill_dirent smb: client: Reset all search buffer pointers when releasing buffer Wentao Guan (2): nvme-pci: add quirks for device 126f:1001 nvme-pci: add quirks for WDC Blue SN550 15b7:5009 Willem de Bruijn (2): ipv6: save dontfrag in cork ipv6: remove leftover ip6 cookie initializer William Tu (3): net/mlx5e: set the tx_queue_len for pfifo_fast net/mlx5e: reduce rep rxq depth to 256 for ECPF net/mlx5e: reduce the max log mpwrq sz for ECPF and reps Xiao Liang (2): net: ipv6: Init tunnel link-netns before registering dev rtnetlink: Lookup device in target netns when creating link Xiaofei Tan (1): ACPI: HED: Always initialize before evged Xiaogang Chen (2): drm/amdkfd: Have kfd driver use same PASID values from graphic driver drm/amdkfd: Fix pasid value leak Xin Li (Intel) (1): x86/fred: Fix system hang during S4 resume with FRED enabled Xin Wang (1): drm/xe/debugfs: fixed the return value of wedged_mode_set Xu Yang (1): PM: sleep: Suppress sleeping parent warning in special case Yeoreum Yun (2): coresight-etb10: change etb_drvdata spinlock's type to raw_spinlock_t coresight: change coresight_trace_id_map's lock type to raw_spinlock_t Yi Liu (2): iommufd: Extend IOMMU_GET_HW_INFO to report PASID capability iommufd: Disallow allocating nested parent domain with fault ID Yihan Zhu (1): drm/amd/display: handle max_downscale_src_width fail check Yonghong Song (1): bpf: Allow pre-ordering for bpf cgroup progs Youssef Samir (1): accel/qaic: Mask out SR-IOV PCI resources Yuanjun Gong (1): leds: pwm-multicolor: Add check for fwnode_property_read_u32 Zhang Rui (1): thermal: intel: x86_pkg_temp_thermal: Fix bogus trip temperature Zhang Yi (2): ext4: don't write back data before punch hole in nojournal mode ext4: remove writable userspace mappings before truncating page cache Zhi Wang (1): drm/nouveau: fix the broken marco GSP_MSG_MAX_SIZE Zhikai Zhai (1): drm/amd/display: calculate the remain segments for all pipes Zhongqiu Han (1): virtio_ring: Fix data race by tagging event_triggered as racy for KCSAN Zhongwei Zhang (1): drm/amd/display: Correct timing_adjust_pending flag setting. Zsolt Kajtar (2): fbcon: Use correct erase colour for clearing in fbcon fbdev: core: tileblit: Implement missing margin clearing for tileblit feijuan.li (1): drm/edid: fixed the bug that hdr metadata was not reset gaoxu (1): cgroup: Fix compilation issue due to cgroup_mutex not being exported junan (1): HID: usbkbd: Fix the bit shift number for LED_KANA shantiprasad shettar (1): bnxt_en: Query FW parameters when the CAPS_CHANGE bit is set zihan zhou (1): sched: Reduce the default slice to avoid tasks getting an extra tick

3 months, 3 weeks

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1
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Linux 6.12.31

by Greg Kroah-Hartman

I'm announcing the release of the 6.12.31 kernel. All users of the 6.12 kernel series must upgrade. The updated 6.12.y git tree can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-6.12.y and can be browsed at the normal kernel.org git web browser: https://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary thanks, greg k-h ------------ Documentation/admin-guide/kernel-parameters.txt | 2 Documentation/driver-api/serial/driver.rst | 2 Documentation/hwmon/dell-smm-hwmon.rst | 14 Makefile | 6 arch/arm/boot/dts/nvidia/tegra114.dtsi | 2 arch/arm/mach-at91/pm.c | 21 arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts | 38 - arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts | 14 arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi | 22 arch/arm64/boot/dts/marvell/armada-3720-uDPU.dtsi | 8 arch/arm64/boot/dts/nvidia/tegra210-p2597.dtsi | 2 arch/arm64/boot/dts/nvidia/tegra234-p3740-0002+p3701-0008.dts | 10 arch/arm64/boot/dts/xilinx/zynqmp-clk-ccf.dtsi | 15 arch/arm64/include/asm/cputype.h | 2 arch/arm64/include/asm/pgtable.h | 27 - arch/arm64/kernel/proton-pack.c | 1 arch/loongarch/kernel/Makefile | 8 arch/loongarch/kvm/Makefile | 2 arch/mips/include/asm/ftrace.h | 16 arch/mips/kernel/pm-cps.c | 30 - arch/powerpc/include/asm/mmzone.h | 1 arch/powerpc/kernel/prom_init.c | 4 arch/powerpc/mm/book3s64/radix_pgtable.c | 3 arch/powerpc/mm/numa.c | 2 arch/powerpc/perf/core-book3s.c | 20 arch/powerpc/perf/isa207-common.c | 4 arch/powerpc/platforms/pseries/iommu.c | 139 ++++-- arch/riscv/include/asm/page.h | 12 arch/riscv/include/asm/pgtable.h | 2 arch/riscv/kernel/Makefile | 4 arch/riscv/mm/tlbflush.c | 37 - arch/s390/hypfs/hypfs_diag_fs.c | 2 arch/s390/include/asm/tlb.h | 2 arch/um/kernel/mem.c | 1 arch/x86/Kconfig | 1 arch/x86/boot/genimage.sh | 5 arch/x86/entry/entry.S | 2 arch/x86/events/amd/ibs.c | 20 arch/x86/events/intel/ds.c | 9 arch/x86/include/asm/bug.h | 5 arch/x86/include/asm/cfi.h | 11 arch/x86/include/asm/ibt.h | 4 arch/x86/include/asm/intel-family.h | 1 arch/x86/include/asm/nmi.h | 2 arch/x86/include/asm/percpu.h | 28 - arch/x86/include/asm/perf_event.h | 1 arch/x86/include/asm/sev-common.h | 2 arch/x86/include/uapi/asm/bootparam.h | 4 arch/x86/include/uapi/asm/e820.h | 4 arch/x86/include/uapi/asm/ldt.h | 4 arch/x86/include/uapi/asm/msr.h | 4 arch/x86/include/uapi/asm/ptrace-abi.h | 6 arch/x86/include/uapi/asm/ptrace.h | 4 arch/x86/include/uapi/asm/setup_data.h | 4 arch/x86/include/uapi/asm/signal.h | 8 arch/x86/kernel/alternative.c | 30 + arch/x86/kernel/cfi.c | 22 arch/x86/kernel/cpu/bugs.c | 10 arch/x86/kernel/cpu/microcode/intel.c | 2 arch/x86/kernel/nmi.c | 42 + arch/x86/kernel/reboot.c | 10 arch/x86/kernel/smpboot.c | 6 arch/x86/kernel/traps.c | 82 ++- arch/x86/mm/init.c | 9 arch/x86/mm/init_64.c | 15 arch/x86/mm/kaslr.c | 10 arch/x86/power/cpu.c | 14 arch/x86/um/os-Linux/mcontext.c | 3 block/badblocks.c | 5 block/bdev.c | 17 block/blk-cgroup.c | 22 block/blk-settings.c | 5 block/blk-throttle.c | 15 block/blk-zoned.c | 5 block/blk.h | 3 block/bounce.c | 2 block/fops.c | 16 block/ioctl.c | 6 crypto/ahash.c | 4 crypto/algif_hash.c | 4 crypto/lzo-rle.c | 2 crypto/lzo.c | 2 crypto/skcipher.c | 1 drivers/accel/qaic/qaic_drv.c | 2 drivers/acpi/Kconfig | 2 drivers/acpi/acpi_pnp.c | 2 drivers/acpi/hed.c | 7 drivers/auxdisplay/charlcd.c | 5 drivers/auxdisplay/charlcd.h | 5 drivers/auxdisplay/hd44780.c | 2 drivers/auxdisplay/lcd2s.c | 2 drivers/auxdisplay/panel.c | 2 drivers/block/loop.c | 5 drivers/block/ublk_drv.c | 53 +- drivers/bluetooth/btmtksdio.c | 15 drivers/bluetooth/btusb.c | 98 +--- drivers/char/tpm/tpm2-sessions.c | 2 drivers/clk/clk-s2mps11.c | 3 drivers/clk/imx/clk-imx8mp.c | 151 ++++++ drivers/clk/qcom/Kconfig | 2 drivers/clk/qcom/camcc-sm8250.c | 56 +- drivers/clk/qcom/clk-alpha-pll.c | 52 +- drivers/clk/qcom/lpassaudiocc-sc7280.c | 23 - drivers/clk/renesas/rzg2l-cpg.c | 102 ++-- drivers/clk/sunxi-ng/ccu-sun20i-d1.c | 44 + drivers/clk/sunxi-ng/ccu_mp.h | 22 drivers/clocksource/mips-gic-timer.c | 6 drivers/clocksource/timer-riscv.c | 6 drivers/cpufreq/amd-pstate.c | 1 drivers/cpufreq/cpufreq-dt-platdev.c | 1 drivers/cpufreq/tegra186-cpufreq.c | 7 drivers/cpuidle/governors/menu.c | 13 drivers/crypto/marvell/octeontx2/otx2_cptvf_reqmgr.c | 7 drivers/crypto/mxs-dcp.c | 8 drivers/dma/fsl-edma-main.c | 2 drivers/dma/idxd/cdev.c | 9 drivers/dpll/dpll_core.c | 5 drivers/edac/ie31200_edac.c | 28 - drivers/firmware/arm_ffa/bus.c | 1 drivers/firmware/arm_ffa/driver.c | 12 drivers/firmware/arm_scmi/bus.c | 19 drivers/firmware/xilinx/zynqmp.c | 6 drivers/fpga/altera-cvp.c | 2 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h | 5 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 52 -- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 30 + drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c | 31 - drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c | 30 + drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 14 drivers/gpu/drm/amd/amdgpu/amdgpu_ih.h | 3 drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 38 + drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 7 drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c | 42 + drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 47 +- drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c | 48 +- drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c | 10 drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 1 drivers/gpu/drm/amd/amdgpu/mes_v11_0.c | 2 drivers/gpu/drm/amd/amdgpu/mmhub_v1_7.c | 25 + drivers/gpu/drm/amd/amdgpu/mmhub_v1_8.c | 27 + drivers/gpu/drm/amd/amdgpu/mmhub_v9_4.c | 31 + drivers/gpu/drm/amd/amdgpu/nv.c | 16 drivers/gpu/drm/amd/amdgpu/soc21.c | 10 drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c | 39 - drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_cik.c | 69 ++- drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_v10.c | 41 + drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_v11.c | 41 + drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_v12.c | 41 + drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_v9.c | 35 + drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager_vi.c | 71 +-- drivers/gpu/drm/amd/amdkfd/kfd_process.c | 16 drivers/gpu/drm/amd/amdkfd/kfd_svm.c | 2 drivers/gpu/drm/amd/amdkfd/kfd_topology.c | 23 - drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 41 + drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h | 2 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 2 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 6 drivers/gpu/drm/amd/display/dc/basics/dc_common.c | 3 drivers/gpu/drm/amd/display/dc/bios/command_table2.c | 9 drivers/gpu/drm/amd/display/dc/bios/command_table_helper2.c | 3 drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c | 22 drivers/gpu/drm/amd/display/dc/clk_mgr/dcn316/dcn316_clk_mgr.c | 15 drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c | 13 drivers/gpu/drm/amd/display/dc/clk_mgr/dcn401/dcn401_clk_mgr.c | 2 drivers/gpu/drm/amd/display/dc/core/dc.c | 22 drivers/gpu/drm/amd/display/dc/core/dc_hw_sequencer.c | 21 drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 4 drivers/gpu/drm/amd/display/dc/dc_dp_types.h | 12 drivers/gpu/drm/amd/display/dc/dc_hw_types.h | 5 drivers/gpu/drm/amd/display/dc/dc_types.h | 7 drivers/gpu/drm/amd/display/dc/dccg/dcn401/dcn401_dccg.c | 3 drivers/gpu/drm/amd/display/dc/dce/dce_stream_encoder.c | 3 drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c | 4 drivers/gpu/drm/amd/display/dc/dio/dcn10/dcn10_stream_encoder.c | 3 drivers/gpu/drm/amd/display/dc/dio/dcn401/dcn401_dio_stream_encoder.c | 3 drivers/gpu/drm/amd/display/dc/dml/dcn35/dcn35_fpu.c | 6 drivers/gpu/drm/amd/display/dc/dml/dcn351/dcn351_fpu.c | 1 drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_wrapper.c | 8 drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_dcn4_calcs.c | 5 drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.h | 1 drivers/gpu/drm/amd/display/dc/dpp/dcn30/dcn30_dpp.c | 11 drivers/gpu/drm/amd/display/dc/hpo/dcn31/dcn31_hpo_dp_stream_encoder.c | 3 drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c | 10 drivers/gpu/drm/amd/display/dc/hwss/dcn10/dcn10_hwseq.c | 7 drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c | 8 drivers/gpu/drm/amd/display/dc/hwss/dcn31/dcn31_hwseq.c | 4 drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c | 3 drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c | 139 +++++- drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.h | 7 drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_init.c | 4 drivers/gpu/drm/amd/display/dc/hwss/hw_sequencer.h | 6 drivers/gpu/drm/amd/display/dc/inc/core_types.h | 2 drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr_internal.h | 1 drivers/gpu/drm/amd/display/dc/inc/hw/dpp.h | 6 drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c | 42 + drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_phy.c | 8 drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training.c | 5 drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_training_8b_10b.c | 7 drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c | 25 - drivers/gpu/drm/amd/display/dc/resource/dcn315/dcn315_resource.c | 42 - drivers/gpu/drm/amd/display/dc/spl/dc_spl.c | 4 drivers/gpu/drm/amd/display/dc/spl/dc_spl_types.h | 2 drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h | 6 drivers/gpu/drm/amd/display/dmub/src/dmub_dcn31.c | 17 drivers/gpu/drm/amd/display/dmub/src/dmub_dcn35.c | 4 drivers/gpu/drm/amd/display/dmub/src/dmub_dcn401.c | 47 +- drivers/gpu/drm/amd/display/dmub/src/dmub_dcn401.h | 3 drivers/gpu/drm/amd/display/modules/info_packet/info_packet.c | 4 drivers/gpu/drm/amd/include/asic_reg/mmhub/mmhub_9_4_1_offset.h | 32 + drivers/gpu/drm/amd/include/asic_reg/mmhub/mmhub_9_4_1_sh_mask.h | 48 ++ drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 1 drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c | 5 drivers/gpu/drm/ast/ast_mode.c | 10 drivers/gpu/drm/bridge/adv7511/adv7511_audio.c | 2 drivers/gpu/drm/drm_atomic_helper.c | 28 + drivers/gpu/drm/drm_buddy.c | 5 drivers/gpu/drm/drm_edid.c | 1 drivers/gpu/drm/drm_gem.c | 4 drivers/gpu/drm/mediatek/mtk_dpi.c | 5 drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c | 2 drivers/gpu/drm/panel/panel-edp.c | 1 drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 40 + drivers/gpu/drm/v3d/v3d_drv.c | 25 - drivers/gpu/drm/xe/xe_bo.c | 22 drivers/gpu/drm/xe/xe_debugfs.c | 3 drivers/gpu/drm/xe/xe_device.c | 10 drivers/gpu/drm/xe/xe_gen_wa_oob.c | 6 drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c | 37 + drivers/gpu/drm/xe/xe_gt_sriov_vf.c | 12 drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c | 22 drivers/gpu/drm/xe/xe_gt_tlb_invalidation.h | 2 drivers/gpu/drm/xe/xe_guc_relay.c | 2 drivers/gpu/drm/xe/xe_oa.c | 1 drivers/gpu/drm/xe/xe_pci_sriov.c | 51 ++ drivers/gpu/drm/xe/xe_pt.c | 14 drivers/gpu/drm/xe/xe_pt.h | 3 drivers/gpu/drm/xe/xe_sa.c | 3 drivers/gpu/drm/xe/xe_tile.c | 12 drivers/gpu/drm/xe/xe_tile.h | 1 drivers/gpu/drm/xe/xe_ttm_stolen_mgr.c | 17 drivers/gpu/drm/xe/xe_ttm_stolen_mgr.h | 2 drivers/gpu/drm/xe/xe_vm.c | 32 + drivers/hid/usbhid/usbkbd.c | 2 drivers/hwmon/dell-smm-hwmon.c | 5 drivers/hwmon/gpio-fan.c | 16 drivers/hwmon/xgene-hwmon.c | 2 drivers/hwtracing/coresight/coresight-etb10.c | 26 - drivers/hwtracing/intel_th/Kconfig | 1 drivers/hwtracing/intel_th/msu.c | 31 - drivers/i2c/busses/i2c-designware-pcidrv.c | 33 - drivers/i2c/busses/i2c-designware-platdrv.c | 48 +- drivers/i2c/busses/i2c-pxa.c | 5 drivers/i2c/busses/i2c-qup.c | 36 + drivers/i3c/master/svc-i3c-master.c | 4 drivers/iio/adc/ad7944.c | 16 drivers/infiniband/core/umem.c | 36 + drivers/infiniband/core/uverbs_cmd.c | 144 +++--- drivers/infiniband/core/verbs.c | 11 drivers/input/joystick/xpad.c | 3 drivers/iommu/amd/io_pgtable_v2.c | 2 drivers/iommu/dma-iommu.c | 28 - drivers/iommu/iommu-priv.h | 2 drivers/iommu/iommu.c | 2 drivers/iommu/iommufd/device.c | 34 + drivers/iommu/iommufd/hw_pagetable.c | 3 drivers/iommu/of_iommu.c | 6 drivers/irqchip/irq-riscv-aplic-direct.c | 24 - drivers/irqchip/irq-riscv-imsic-early.c | 8 drivers/irqchip/irq-riscv-imsic-platform.c | 16 drivers/irqchip/irq-riscv-imsic-state.c | 96 ++-- drivers/irqchip/irq-riscv-imsic-state.h | 7 drivers/leds/rgb/leds-pwm-multicolor.c | 5 drivers/leds/trigger/ledtrig-netdev.c | 16 drivers/mailbox/mailbox.c | 7 drivers/mailbox/pcc.c | 8 drivers/md/dm-cache-target.c | 24 + drivers/md/dm-table.c | 4 drivers/md/dm-vdo/indexer/index-layout.c | 5 drivers/md/dm-vdo/vdo.c | 11 drivers/md/dm.c | 8 drivers/media/i2c/adv7180.c | 34 - drivers/media/i2c/imx219.c | 2 drivers/media/i2c/imx335.c | 21 drivers/media/i2c/tc358746.c | 19 drivers/media/platform/qcom/camss/camss-csid.c | 60 +- drivers/media/platform/qcom/camss/camss-vfe.c | 4 drivers/media/platform/st/sti/c8sectpfe/c8sectpfe-core.c | 3 drivers/media/test-drivers/vivid/vivid-kthread-cap.c | 11 drivers/media/test-drivers/vivid/vivid-kthread-out.c | 11 drivers/media/test-drivers/vivid/vivid-kthread-touch.c | 11 drivers/media/test-drivers/vivid/vivid-sdr-cap.c | 11 drivers/media/usb/cx231xx/cx231xx-417.c | 2 drivers/media/usb/uvc/uvc_ctrl.c | 77 +-- drivers/media/usb/uvc/uvc_v4l2.c | 6 drivers/media/v4l2-core/v4l2-subdev.c | 2 drivers/mfd/axp20x.c | 1 drivers/mfd/tps65219.c | 7 drivers/misc/eeprom/ee1004.c | 4 drivers/misc/mei/vsc-tp.c | 14 drivers/misc/pci_endpoint_test.c | 6 drivers/mmc/host/dw_mmc-exynos.c | 41 + drivers/mmc/host/sdhci-pci-core.c | 6 drivers/mmc/host/sdhci.c | 9 drivers/net/bonding/bond_main.c | 2 drivers/net/can/c_can/c_can_platform.c | 2 drivers/net/can/kvaser_pciefd.c | 101 ++-- drivers/net/can/slcan/slcan-core.c | 26 - drivers/net/ethernet/apm/xgene-v2/main.c | 4 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 8 drivers/net/ethernet/freescale/enetc/enetc.c | 16 drivers/net/ethernet/freescale/fec_main.c | 52 +- drivers/net/ethernet/intel/ice/ice_ethtool.c | 3 drivers/net/ethernet/intel/ice/ice_irq.c | 25 - drivers/net/ethernet/intel/ice/ice_lag.c | 6 drivers/net/ethernet/intel/ice/ice_lib.c | 2 drivers/net/ethernet/intel/ice/ice_main.c | 6 drivers/net/ethernet/intel/ice/ice_virtchnl.c | 1 drivers/net/ethernet/intel/idpf/idpf.h | 2 drivers/net/ethernet/intel/idpf/idpf_lib.c | 10 drivers/net/ethernet/intel/idpf/idpf_txrx.c | 18 drivers/net/ethernet/marvell/octeontx2/af/cgx.c | 14 drivers/net/ethernet/marvell/octeontx2/af/rvu.h | 2 drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c | 24 - drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c | 11 drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c | 8 drivers/net/ethernet/mediatek/mtk_ppe_offload.c | 22 drivers/net/ethernet/mellanox/mlx4/alloc.c | 6 drivers/net/ethernet/mellanox/mlx4/en_tx.c | 2 drivers/net/ethernet/mellanox/mlx5/core/en.h | 3 drivers/net/ethernet/mellanox/mlx5/core/en/params.c | 16 drivers/net/ethernet/mellanox/mlx5/core/en/params.h | 1 drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c | 1 drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c | 49 -- drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.c | 28 - drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 36 - drivers/net/ethernet/mellanox/mlx5/core/en_rep.c | 5 drivers/net/ethernet/mellanox/mlx5/core/en_selftest.c | 3 drivers/net/ethernet/mellanox/mlx5/core/esw/ipsec_fs.c | 13 drivers/net/ethernet/mellanox/mlx5/core/esw/ipsec_fs.h | 5 drivers/net/ethernet/mellanox/mlx5/core/esw/legacy.c | 2 drivers/net/ethernet/mellanox/mlx5/core/events.c | 11 drivers/net/ethernet/mellanox/mlx5/core/fs_ft_pool.c | 6 drivers/net/ethernet/mellanox/mlx5/core/fs_ft_pool.h | 2 drivers/net/ethernet/mellanox/mlx5/core/health.c | 1 drivers/net/ethernet/mellanox/mlx5/core/lib/fs_chains.c | 3 drivers/net/ethernet/meta/fbnic/fbnic_netdev.c | 2 drivers/net/ethernet/microchip/lan743x_main.c | 19 drivers/net/ethernet/microsoft/mana/gdma_main.c | 2 drivers/net/ethernet/realtek/r8169_main.c | 28 + drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c | 3 drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c | 21 drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 2 drivers/net/ethernet/tehuti/tn40.c | 9 drivers/net/ethernet/tehuti/tn40.h | 33 + drivers/net/ethernet/tehuti/tn40_mdio.c | 82 +++ drivers/net/ethernet/ti/cpsw_new.c | 1 drivers/net/ieee802154/ca8210.c | 9 drivers/net/mctp/mctp-i2c.c | 2 drivers/net/phy/nxp-c45-tja11xx.c | 54 ++ drivers/net/phy/phylink.c | 2 drivers/net/usb/r8152.c | 1 drivers/net/vmxnet3/vmxnet3_drv.c | 5 drivers/net/vxlan/vxlan_core.c | 36 + drivers/net/wireless/ath/ath11k/dp.h | 6 drivers/net/wireless/ath/ath11k/dp_rx.c | 117 ++--- drivers/net/wireless/ath/ath12k/core.c | 12 drivers/net/wireless/ath/ath12k/core.h | 1 drivers/net/wireless/ath/ath12k/dp_mon.c | 16 drivers/net/wireless/ath/ath12k/dp_tx.c | 6 drivers/net/wireless/ath/ath12k/hal_desc.h | 2 drivers/net/wireless/ath/ath12k/hal_rx.h | 3 drivers/net/wireless/ath/ath12k/pci.c | 13 drivers/net/wireless/ath/ath12k/wmi.c | 4 drivers/net/wireless/ath/ath9k/init.c | 4 drivers/net/wireless/intel/iwlwifi/cfg/dr.c | 2 drivers/net/wireless/intel/iwlwifi/fw/dbg.c | 4 drivers/net/wireless/intel/iwlwifi/fw/uefi.c | 8 drivers/net/wireless/intel/iwlwifi/fw/uefi.h | 4 drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c | 10 drivers/net/wireless/intel/iwlwifi/iwl-trans.c | 8 drivers/net/wireless/intel/iwlwifi/mvm/ftm-initiator.c | 4 drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c | 15 drivers/net/wireless/intel/iwlwifi/mvm/mld-mac80211.c | 3 drivers/net/wireless/intel/iwlwifi/mvm/mvm.h | 3 drivers/net/wireless/intel/iwlwifi/pcie/drv.c | 2 drivers/net/wireless/marvell/mwifiex/11n.c | 6 drivers/net/wireless/mediatek/mt76/mt76.h | 1 drivers/net/wireless/mediatek/mt76/mt76_connac3_mac.h | 3 drivers/net/wireless/mediatek/mt76/mt76x0/pci.c | 3 drivers/net/wireless/mediatek/mt76/mt76x0/usb.c | 3 drivers/net/wireless/mediatek/mt76/mt76x2/pci.c | 3 drivers/net/wireless/mediatek/mt76/mt76x2/usb.c | 3 drivers/net/wireless/mediatek/mt76/mt7925/mcu.c | 64 ++ drivers/net/wireless/mediatek/mt76/mt7925/mt7925.h | 3 drivers/net/wireless/mediatek/mt76/mt7996/mac.c | 4 drivers/net/wireless/mediatek/mt76/mt7996/mcu.h | 3 drivers/net/wireless/mediatek/mt76/mt7996/mmio.c | 2 drivers/net/wireless/mediatek/mt76/tx.c | 3 drivers/net/wireless/realtek/rtl8xxxu/core.c | 17 drivers/net/wireless/realtek/rtw88/mac.c | 6 drivers/net/wireless/realtek/rtw88/main.c | 40 - drivers/net/wireless/realtek/rtw88/reg.h | 3 drivers/net/wireless/realtek/rtw88/rtw8822b.c | 14 drivers/net/wireless/realtek/rtw88/util.c | 3 drivers/net/wireless/realtek/rtw89/coex.c | 14 drivers/net/wireless/realtek/rtw89/core.c | 23 - drivers/net/wireless/realtek/rtw89/core.h | 2 drivers/net/wireless/realtek/rtw89/fw.c | 101 ++++ drivers/net/wireless/realtek/rtw89/fw.h | 12 drivers/net/wireless/realtek/rtw89/mac.c | 55 ++ drivers/net/wireless/realtek/rtw89/mac.h | 3 drivers/net/wireless/realtek/rtw89/mac80211.c | 1 drivers/net/wireless/realtek/rtw89/reg.h | 4 drivers/net/wireless/realtek/rtw89/regd.c | 2 drivers/net/wireless/realtek/rtw89/rtw8851b.c | 1 drivers/net/wireless/realtek/rtw89/rtw8852a.c | 1 drivers/net/wireless/realtek/rtw89/rtw8852b.c | 1 drivers/net/wireless/realtek/rtw89/rtw8852bt.c | 1 drivers/net/wireless/realtek/rtw89/rtw8852c.c | 1 drivers/net/wireless/realtek/rtw89/rtw8922a.c | 1 drivers/net/wireless/realtek/rtw89/ser.c | 4 drivers/net/wireless/virtual/mac80211_hwsim.c | 14 drivers/nvdimm/label.c | 3 drivers/nvme/host/pci.c | 6 drivers/nvme/target/tcp.c | 3 drivers/nvmem/core.c | 40 + drivers/nvmem/qfprom.c | 26 - drivers/nvmem/rockchip-otp.c | 17 drivers/pci/Kconfig | 6 drivers/pci/ats.c | 33 + drivers/pci/controller/dwc/pcie-designware-ep.c | 2 drivers/pci/controller/dwc/pcie-designware-host.c | 2 drivers/pci/controller/pcie-brcmstb.c | 5 drivers/pci/controller/vmd.c | 20 drivers/pci/endpoint/functions/pci-epf-mhi.c | 2 drivers/pci/endpoint/functions/pci-epf-test.c | 2 drivers/pci/setup-bus.c | 6 drivers/perf/arm_pmuv3.c | 4 drivers/phy/phy-core.c | 7 drivers/phy/renesas/phy-rcar-gen3-usb2.c | 95 ++-- drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c | 4 drivers/phy/rockchip/phy-rockchip-usbdp.c | 87 ++- drivers/phy/samsung/phy-exynos5-usbdrd.c | 7 drivers/pinctrl/bcm/pinctrl-bcm281xx.c | 44 - drivers/pinctrl/devicetree.c | 10 drivers/pinctrl/meson/pinctrl-meson.c | 2 drivers/pinctrl/qcom/pinctrl-msm.c | 23 - drivers/pinctrl/renesas/pinctrl-rzg2l.c | 19 drivers/pinctrl/sophgo/pinctrl-cv18xx.c | 33 + drivers/pinctrl/tegra/pinctrl-tegra.c | 59 ++ drivers/pinctrl/tegra/pinctrl-tegra.h | 6 drivers/platform/x86/asus-wmi.c | 11 drivers/platform/x86/dell/dell-wmi-sysman/passobj-attributes.c | 2 drivers/platform/x86/ideapad-laptop.c | 16 drivers/platform/x86/intel/hid.c | 21 drivers/platform/x86/think-lmi.c | 26 - drivers/platform/x86/think-lmi.h | 1 drivers/pmdomain/core.c | 2 drivers/pmdomain/imx/gpcv2.c | 2 drivers/pmdomain/renesas/rcar-gen4-sysc.c | 5 drivers/pmdomain/renesas/rcar-sysc.c | 5 drivers/power/supply/axp20x_battery.c | 21 drivers/ptp/ptp_ocp.c | 24 - drivers/regulator/ad5398.c | 12 drivers/remoteproc/qcom_wcnss.c | 34 + drivers/rtc/rtc-ds1307.c | 4 drivers/rtc/rtc-rv3032.c | 2 drivers/s390/crypto/vfio_ap_ops.c | 72 ++- drivers/scsi/lpfc/lpfc_hbadisc.c | 29 - drivers/scsi/lpfc/lpfc_init.c | 2 drivers/scsi/mpi3mr/mpi3mr_fw.c | 8 drivers/scsi/mpt3sas/mpt3sas_ctl.c | 12 drivers/scsi/scsi_debug.c | 55 ++ drivers/scsi/scsi_sysctl.c | 4 drivers/scsi/st.c | 29 + drivers/scsi/st.h | 2 drivers/soc/apple/rtkit-internal.h | 1 drivers/soc/apple/rtkit.c | 58 +- drivers/soc/mediatek/mtk-mutex.c | 6 drivers/soc/samsung/exynos-asv.c | 1 drivers/soc/samsung/exynos-chipid.c | 1 drivers/soc/samsung/exynos-pmu.c | 1 drivers/soc/samsung/exynos-usi.c | 1 drivers/soc/samsung/exynos3250-pmu.c | 1 drivers/soc/samsung/exynos5250-pmu.c | 1 drivers/soc/samsung/exynos5420-pmu.c | 1 drivers/soc/ti/k3-socinfo.c | 13 drivers/soundwire/amd_manager.c | 2 drivers/soundwire/bus.c | 9 drivers/soundwire/cadence_master.c | 22 drivers/spi/spi-fsl-dspi.c | 46 +- drivers/spi/spi-mux.c | 4 drivers/spi/spi-rockchip.c | 2 drivers/spi/spi-zynqmp-gqspi.c | 20 drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c | 69 +-- drivers/target/iscsi/iscsi_target.c | 2 drivers/target/target_core_spc.c | 14 drivers/thermal/intel/x86_pkg_temp_thermal.c | 1 drivers/thermal/mediatek/lvts_thermal.c | 3 drivers/thermal/qoriq_thermal.c | 13 drivers/thunderbolt/retimer.c | 8 drivers/tty/serial/8250/8250_port.c | 2 drivers/tty/serial/atmel_serial.c | 2 drivers/tty/serial/imx.c | 2 drivers/tty/serial/serial_mctrl_gpio.c | 34 + drivers/tty/serial/serial_mctrl_gpio.h | 17 drivers/tty/serial/sh-sci.c | 98 ++++ drivers/tty/serial/stm32-usart.c | 2 drivers/ufs/core/ufshcd.c | 29 + drivers/usb/host/xhci-mem.c | 34 - drivers/usb/host/xhci-ring.c | 12 drivers/usb/host/xhci.h | 8 drivers/vdpa/mlx5/net/mlx5_vnet.c | 3 drivers/vfio/pci/vfio_pci_config.c | 3 drivers/vfio/pci/vfio_pci_core.c | 10 drivers/vfio/pci/vfio_pci_intrs.c | 2 drivers/vhost/scsi.c | 23 - drivers/video/fbdev/core/bitblit.c | 5 drivers/video/fbdev/core/fbcon.c | 10 drivers/video/fbdev/core/fbcon.h | 38 - drivers/video/fbdev/core/fbcon_ccw.c | 5 drivers/video/fbdev/core/fbcon_cw.c | 5 drivers/video/fbdev/core/fbcon_ud.c | 5 drivers/video/fbdev/core/tileblit.c | 45 + drivers/video/fbdev/fsl-diu-fb.c | 1 drivers/virtio/virtio_ring.c | 2 drivers/watchdog/aspeed_wdt.c | 81 +++ drivers/xen/pci.c | 32 + drivers/xen/platform-pci.c | 4 drivers/xen/xenbus/xenbus_probe.c | 14 fs/btrfs/block-group.c | 18 fs/btrfs/compression.c | 2 fs/btrfs/discard.c | 34 - fs/btrfs/disk-io.c | 28 - fs/btrfs/extent_io.c | 7 fs/btrfs/extent_io.h | 2 fs/btrfs/scrub.c | 4 fs/btrfs/send.c | 6 fs/buffer.c | 61 +- fs/dlm/lowcomms.c | 4 fs/erofs/internal.h | 4 fs/erofs/super.c | 46 -- fs/erofs/zdata.c | 4 fs/exfat/inode.c | 159 +++--- fs/ext4/balloc.c | 4 fs/ext4/ext4.h | 5 fs/ext4/extents.c | 19 fs/ext4/inode.c | 81 ++- fs/ext4/mballoc.c | 3 fs/ext4/page-io.c | 16 fs/ext4/super.c | 19 fs/f2fs/sysfs.c | 74 ++- fs/fuse/dir.c | 2 fs/gfs2/glock.c | 11 fs/jbd2/recovery.c | 11 fs/jbd2/revoke.c | 15 fs/namespace.c | 6 fs/nfs/delegation.c | 3 fs/nfs/flexfilelayout/flexfilelayout.c | 1 fs/nfs/inode.c | 2 fs/nfs/internal.h | 5 fs/nfs/nfs3proc.c | 2 fs/nfs/nfs4proc.c | 9 fs/nfs/nfs4state.c | 10 fs/nilfs2/the_nilfs.c | 3 fs/ocfs2/journal.c | 2 fs/orangefs/inode.c | 7 fs/pidfs.c | 9 fs/pstore/inode.c | 2 fs/pstore/internal.h | 4 fs/pstore/platform.c | 11 fs/smb/client/cifsacl.c | 17 fs/smb/client/cifspdu.h | 5 fs/smb/client/cifsproto.h | 7 fs/smb/client/cifssmb.c | 57 ++ fs/smb/client/connect.c | 30 + fs/smb/client/fs_context.c | 13 fs/smb/client/fs_context.h | 3 fs/smb/client/link.c | 8 fs/smb/client/readdir.c | 7 fs/smb/client/smb1ops.c | 228 ++++++++-- fs/smb/client/smb2file.c | 11 fs/smb/client/smb2ops.c | 30 - fs/smb/client/transport.c | 2 fs/smb/common/smb2pdu.h | 3 fs/smb/server/smb2pdu.c | 9 fs/smb/server/vfs.c | 14 include/crypto/hash.h | 3 include/drm/drm_atomic.h | 23 - include/drm/drm_gem.h | 13 include/linux/bpf-cgroup.h | 1 include/linux/buffer_head.h | 8 include/linux/device.h | 119 ----- include/linux/device/devres.h | 129 +++++ include/linux/dma-mapping.h | 12 include/linux/err.h | 3 include/linux/highmem.h | 10 include/linux/io.h | 2 include/linux/ipv6.h | 1 include/linux/lzo.h | 8 include/linux/mfd/axp20x.h | 1 include/linux/mlx4/device.h | 2 include/linux/mlx5/eswitch.h | 2 include/linux/mlx5/fs.h | 2 include/linux/mman.h | 2 include/linux/msi.h | 33 - include/linux/page-flags.h | 7 include/linux/pci-ats.h | 3 include/linux/perf_event.h | 8 include/linux/pnp.h | 2 include/linux/rcupdate.h | 2 include/linux/rcutree.h | 2 include/linux/spi/spi.h | 5 include/linux/trace.h | 4 include/linux/trace_seq.h | 8 include/linux/usb/r8152.h | 1 include/media/v4l2-subdev.h | 4 include/net/cfg80211.h | 3 include/net/mac80211.h | 4 include/net/xfrm.h | 1 include/rdma/uverbs_std_types.h | 2 include/sound/hda_codec.h | 1 include/sound/pcm.h | 2 include/trace/events/btrfs.h | 2 include/uapi/linux/bpf.h | 1 include/uapi/linux/iommufd.h | 14 include/uapi/linux/nl80211.h | 52 +- include/ufs/ufs_quirks.h | 6 io_uring/fdinfo.c | 4 io_uring/io_uring.c | 12 io_uring/msg_ring.c | 1 kernel/bpf/bpf_struct_ops.c | 98 +--- kernel/bpf/cgroup.c | 33 + kernel/bpf/hashtab.c | 2 kernel/bpf/syscall.c | 7 kernel/bpf/verifier.c | 34 + kernel/cgroup/cgroup.c | 2 kernel/cgroup/rstat.c | 12 kernel/dma/mapping.c | 25 - kernel/events/core.c | 98 ++-- kernel/events/hw_breakpoint.c | 5 kernel/events/ring_buffer.c | 1 kernel/exit.c | 6 kernel/fork.c | 9 kernel/padata.c | 3 kernel/printk/printk.c | 14 kernel/rcu/rcu.h | 2 kernel/rcu/tree.c | 15 kernel/rcu/tree_plugin.h | 22 kernel/sched/fair.c | 6 kernel/signal.c | 3 kernel/softirq.c | 18 kernel/time/hrtimer.c | 29 - kernel/time/posix-timers.c | 22 kernel/time/timer_list.c | 4 kernel/trace/trace.c | 11 kernel/trace/trace.h | 16 kernel/vhost_task.c | 2 lib/dynamic_queue_limits.c | 2 lib/lzo/Makefile | 2 lib/lzo/lzo1x_compress.c | 102 +++- lib/lzo/lzo1x_compress_safe.c | 18 mm/memcontrol.c | 6 mm/page_alloc.c | 8 mm/vmalloc.c | 13 net/bluetooth/hci_event.c | 3 net/bluetooth/l2cap_core.c | 15 net/bridge/br_mdb.c | 2 net/bridge/br_nf_core.c | 7 net/bridge/br_private.h | 1 net/can/bcm.c | 79 ++- net/core/dev.c | 12 net/core/dev.h | 12 net/core/page_pool.c | 7 net/core/pktgen.c | 13 net/dsa/tag_ksz.c | 19 net/hsr/hsr_device.c | 2 net/hsr/hsr_forward.c | 4 net/hsr/hsr_framereg.c | 95 ++++ net/hsr/hsr_framereg.h | 8 net/hsr/hsr_main.h | 2 net/ipv4/esp4.c | 53 -- net/ipv4/fib_frontend.c | 18 net/ipv4/fib_rules.c | 4 net/ipv4/fib_trie.c | 22 net/ipv4/inet_hashtables.c | 37 + net/ipv4/ip_gre.c | 16 net/ipv4/tcp_input.c | 56 +- net/ipv4/xfrm4_input.c | 18 net/ipv6/esp6.c | 53 -- net/ipv6/fib6_rules.c | 4 net/ipv6/ip6_gre.c | 2 net/ipv6/ip6_output.c | 9 net/ipv6/ip6_tunnel.c | 3 net/ipv6/ip6_vti.c | 3 net/ipv6/sit.c | 8 net/ipv6/xfrm6_input.c | 18 net/llc/af_llc.c | 8 net/mac80211/driver-ops.h | 3 net/mac80211/mlme.c | 10 net/mptcp/pm_userspace.c | 8 net/netfilter/nf_conntrack_standalone.c | 12 net/sched/sch_hfsc.c | 6 net/smc/smc_pnet.c | 8 net/sunrpc/clnt.c | 3 net/sunrpc/rpcb_clnt.c | 5 net/sunrpc/sched.c | 2 net/tipc/crypto.c | 5 net/wireless/chan.c | 8 net/wireless/nl80211.c | 4 net/wireless/reg.c | 4 net/xfrm/espintcp.c | 4 net/xfrm/xfrm_policy.c | 3 net/xfrm/xfrm_state.c | 6 net/xfrm/xfrm_user.c | 12 samples/bpf/Makefile | 2 scripts/Makefile.extrawarn | 11 scripts/config | 26 - scripts/kconfig/confdata.c | 19 scripts/kconfig/merge_config.sh | 4 security/integrity/ima/ima_main.c | 4 security/smack/smackfs.c | 21 sound/core/oss/pcm_oss.c | 3 sound/core/pcm_native.c | 11 sound/core/seq/seq_clientmgr.c | 5 sound/core/seq/seq_memory.c | 1 sound/pci/hda/hda_beep.c | 15 sound/pci/hda/patch_realtek.c | 77 +++ sound/soc/codecs/cs42l43-jack.c | 7 sound/soc/codecs/mt6359-accdet.h | 9 sound/soc/codecs/pcm3168a.c | 6 sound/soc/codecs/pcm6240.c | 28 - sound/soc/codecs/pcm6240.h | 7 sound/soc/codecs/rt722-sdca-sdw.c | 49 ++ sound/soc/codecs/tas2764.c | 53 +- sound/soc/codecs/wsa883x.c | 2 sound/soc/codecs/wsa884x.c | 2 sound/soc/fsl/imx-card.c | 2 sound/soc/intel/boards/bytcr_rt5640.c | 13 sound/soc/mediatek/mt8188/mt8188-afe-clk.c | 8 sound/soc/mediatek/mt8188/mt8188-afe-clk.h | 8 sound/soc/mediatek/mt8188/mt8188-afe-pcm.c | 4 sound/soc/qcom/sm8250.c | 3 sound/soc/sdw_utils/soc_sdw_cs42l43.c | 10 sound/soc/soc-dai.c | 8 sound/soc/soc-ops.c | 29 + sound/soc/sof/intel/hda-bus.c | 2 sound/soc/sof/intel/hda.c | 16 sound/soc/sof/ipc4-control.c | 11 sound/soc/sof/ipc4-pcm.c | 3 sound/soc/sof/topology.c | 18 sound/soc/sunxi/sun4i-codec.c | 53 ++ sound/usb/midi.c | 16 tools/bpf/bpftool/common.c | 3 tools/build/Makefile.build | 6 tools/include/uapi/linux/bpf.h | 1 tools/lib/bpf/libbpf.c | 2 tools/net/ynl/lib/ynl.c | 2 tools/net/ynl/ynl-gen-c.py | 3 tools/objtool/check.c | 21 tools/power/x86/turbostat/turbostat.8 | 1 tools/power/x86/turbostat/turbostat.c | 13 tools/testing/kunit/qemu_configs/x86_64.py | 4 tools/testing/selftests/bpf/prog_tests/sockmap_ktls.c | 1 tools/testing/selftests/iommu/iommufd.c | 4 tools/testing/selftests/net/forwarding/bridge_mdb.sh | 2 tools/testing/selftests/net/gro.sh | 3 767 files changed, 8223 insertions(+), 3618 deletions(-) Aaradhana Sahu (1): wifi: ath12k: Fetch regdb.bin file from board-2.bin Aaron Kling (1): cpufreq: tegra186: Share policy per cluster Adrian Hunter (1): perf/x86/intel: Fix segfault with PEBS-via-PT with sample_freq Ahmad Fatoum (2): clk: imx8mp: inform CCF of maximum frequency of clocks pmdomain: imx: gpcv2: use proper helper for property detection Al Viro (2): hypfs_create_cpu_files(): add missing check for hypfs_mkdir() failure __legitimize_mnt(): check for MNT_SYNC_UMOUNT should be under mount_lock Aleksander Jan Bajkowski (1): r8152: add vendor/device ID pair for Dell Alienware AW1022z Alex Deucher (5): drm/amdgpu: adjust drm_firmware_drivers_only() handling drm/amdgpu/gfx12: don't read registers in mqd init drm/amdgpu/gfx11: don't read registers in mqd init drm/amdgpu/mes11: fix set_hw_resources_1 calculation drm/amd/display/dm: drop hw_support check in amdgpu_dm_i2c_xfer() Alex Williamson (1): vfio/pci: Handle INTx IRQ_NOTCONNECTED Alexander Duyck (1): eth: fbnic: set IFF_UNICAST_FLT to avoid enabling promiscuous mode when adding unicast addrs Alexander Stein (1): hwmon: (gpio-fan) Add missing mutex locks Alexander Sverdlin (1): net: ethernet: ti: cpsw_new: populate netdev of_node Alexandre Belloni (2): rtc: rv3032: fix EERD location rtc: ds1307: stop disabling alarms on probe Alexandre Ghiti (1): riscv: Call secondary mmu notifier when flushing the tlb Alexei Lazar (2): net/mlx5: XDP, Enable TX side XDP multi-buffer support net/mlx5: Extend Ethtool loopback selftest to support non-linear SKB Alexey Klimov (1): ASoC: qcom: sm8250: explicitly set format in sm8250_be_hw_params_fixup() Alexis Lothoré (1): serial: mctrl_gpio: split disable_ms into sync and no_sync APIs Alice Guo (1): thermal/drivers/qoriq: Power down TMU on system suspend Alistair Francis (1): nvmet-tcp: don't restore null sk_state_change Amber Lin (1): drm/amdkfd: Correct F8_MODE for gfx950 Amery Hung (1): bpf: Search and add kfuncs in struct_ops prologue and epilogue Andre Przywara (1): clk: sunxi-ng: d1: Add missing divider for MMC mod clocks Andreas Gruenbacher (1): gfs2: Check for empty queue in run_queue Andreas Schwab (1): powerpc/prom_init: Fixup missing #size-cells on PowerBook6,7 Andrei Botila (1): net: phy: nxp-c45-tja11xx: add match_phy_device to TJA1103/TJA1104 Andrew Bresticker (1): irqchip/riscv-imsic: Start local sync timer on correct CPU Andrew Davis (1): soc: ti: k3-socinfo: Do not use syscon helper to build regmap Andrew Jones (1): irqchip/riscv-imsic: Set irq_set_affinity() for IMSIC base Andrey Vatoropin (1): hwmon: (xgene-hwmon) use appropriate type for the latency value André Draszik (2): phy: exynos5-usbdrd: fix EDS distribution tuning (gs101) clk: s2mps11: initialise clk_hw_onecell_data::num before accessing ::hws[] in probe() Andy Shevchenko (6): i2c: designware: Use temporary variable for struct device tracing: Mark binary printing functions with __printf() attribute auxdisplay: charlcd: Partially revert "Move hwidth and bwidth to struct hd44780_common" ieee802154: ca8210: Use proper setters and getters for bitwise types hrtimers: Replace hrtimer_clock_to_base_table with switch-case driver core: Split devres APIs to device/devres.h Andy Yan (2): phy: rockchip: usbdp: Only verify link rates/lanes/voltage when the corresponding set flags are set drm/rockchip: vop2: Add uv swap for cluster window AngeloGioacchino Del Regno (2): soc: mediatek: mtk-mutex: Add DPI1 SOF/EOF to MT8188 mutex tables drm/mediatek: mtk_dpi: Add checks for reg_h_fre_con existence Anjaneyulu (1): wifi: cfg80211: allow IR in 20 MHz configurations Ankur Arora (3): rcu: handle quiescent states for PREEMPT_RCU=n, PREEMPT_COUNT=y rcu: handle unstable rdp in rcu_read_unlock_strict() rcu: fix header guard for rcu_all_qs() Anthony Krowiak (1): s390/vfio-ap: Fix no AP queue sharing allowed message written to kernel log Anup Patel (1): irqchip/riscv-imsic: Separate next and previous pointers in IMSIC vector Aric Cyr (1): drm/amd/display: Request HW cursor on DCN3.2 with SubVP Arnd Bergmann (4): soc: samsung: include linux/array_size.h where needed net: xgene-v2: remove incorrect ACPI_PTR annotation EDAC/ie31200: work around false positive build warning watchdog: aspeed: fix 64-bit division Artur Weber (1): pinctrl: bcm281xx: Use "unsigned int" instead of bare "unsigned" Asad Kamal (1): drm/amd/pm: Skip P2S load for SMU v13.0.12 Assadian, Navid (1): drm/amd/display: Fix mismatch type comparison Athira Rajeev (1): arch/powerpc/perf: Check the instruction type before creating sample with perf_mem_data_src Austin Zheng (2): drm/amd/display: Use Nominal vBlank If Provided Instead Of Capping It drm/amd/display: Call FP Protect Before Mode Programming/Mode Support Avraham Stern (1): wifi: iwlwifi: mvm: fix setting the TK when associated Avula Sri Charan (1): wifi: ath12k: Avoid napi_sync() before napi_enable() Axel Forsman (2): can: kvaser_pciefd: Continue parsing DMA buf after dropped RX can: kvaser_pciefd: Fix echo_skb race Balbir Singh (4): dma/mapping.c: dev_dbg support for dma_addressing_limited dma-mapping: Fix warning reported for missing prototype x86/kaslr: Reduce KASLR entropy on most x86 systems x86/mm/init: Handle the special case of device private pages in add_pages(), to not increase max_pfn and trigger dma_addressing_limited() bounce buffers bounce buffers Baokun Li (2): ext4: reject the 'data_err=abort' option in nojournal mode ext4: do not convert the unwritten extents if data writeback fails Bard Liao (1): soundwire: cadence_master: set frame shape and divider based on actual clk freq Benjamin Berg (1): um: Store full CSGSFS and SS register from mcontext Benjamin Lin (1): wifi: mt76: mt7996: revise TXS size Bibo Mao (1): MIPS: Use arch specific syscall name match function Bitterblue Smith (6): wifi: rtw88: Fix rtw_init_vht_cap() for RTL8814AU wifi: rtw88: Fix rtw_init_ht_cap() for RTL8814AU wifi: rtw88: Fix rtw_desc_to_mcsrate() to handle MCS16-31 wifi: rtw88: Fix download_firmware_validate() for RTL8814AU wifi: rtw88: Fix __rtw_download_firmware() for RTL8814AU wifi: rtw88: Don't use static local variable in rtw8822b_set_tx_power_index_by_rate Bogdan-Gabriel Roman (1): spi: spi-fsl-dspi: Halt the module after a new message transfer Boris Burkov (2): btrfs: make btrfs_discard_workfn() block_group ref explicit btrfs: handle empty eb->folios in num_extent_folios() Brandon Kammerdiener (1): bpf: fix possible endless loop in BPF map iteration Brandon Syu (1): Revert "drm/amd/display: Exit idle optimizations before attempt to access PHY" Brendan Jackman (1): kunit: tool: Use qboot on QEMU x86_64 Breno Leitao (2): x86/bugs: Make spectre user default depend on MITIGATION_SPECTRE_V2 memcg: always call cond_resched() after fn() Caleb Sander Mateos (1): ublk: complete command synchronously on error Carlos Sanchez (1): can: slcan: allow reception of short error messages Carolina Jubran (1): net/mlx5e: Avoid WARN_ON when configuring MQPRIO with HTB offload enabled Cezary Rojewski (1): ASoC: codecs: pcm3168a: Allow for 24-bit in provider mode Chaohai Chen (1): scsi: target: spc: Fix loop traversal in spc_rsoc_get_descr() Charlene Liu (3): drm/amd/display: remove minimum Dispclk and apply oem panel timing. drm/amd/display: fix dcn4x init failed drm/amd/display: pass calculated dram_speed_mts to dml2 Charles Keepax (3): ASoC: rt722-sdca: Add some missing readable registers ASoC: cs42l43: Disable headphone clamps during type detection soundwire: bus: Fix race on the creation of the IRQ domain Chen Linxuan (1): blk-cgroup: improve policy registration error handling Chenyuan Yang (1): ASoC: imx-card: Adjust over allocation of memory in imx_card_parse_of() Chin-Ting Kuo (1): watchdog: aspeed: Update bootstatus handling Ching-Te Ku (2): wifi: rtw89: coex: Assign value over than 0 to avoid firmware timer hang wifi: rtw89: coex: Separated Wi-Fi connecting event from Wi-Fi scan event Choong Yong Liang (1): net: phylink: use pl->link_interface in phylink_expects_phy() Chris Lu (2): Bluetooth: btmtksdio: Check function enabled before doing close Bluetooth: btmtksdio: Do close if SDIO card removed without close Chris Morgan (2): power: supply: axp20x_battery: Update temp sensor for AXP717 from device tree mfd: axp20x: AXP717: Add AXP717_TS_PIN_CFG to writeable regs Christian Brauner (1): pidfs: improve multi-threaded exec and premature thread-group leader exit polling Christian Bruel (1): PCI: endpoint: pci-epf-test: Fix double free that causes kernel to oops Christian Göttsche (1): ext4: reorder capability check last Christian König (1): drm/amdgpu: remove all KFD fences from the BO on release Christoph Hellwig (3): block: mark bounce buffering as incompatible with integrity loop: check in LO_FLAGS_DIRECT_IO in loop_default_blocksize loop: don't require ->write_iter for writable files in loop_configure Christophe JAILLET (1): i2c: designware: Fix an error handling path in i2c_dw_pci_probe() ChunHao Lin (1): r8169: disable RTL8126 ZRX-DC timeout Chung Chung (1): dm vdo indexer: prevent unterminated string warning Claudiu Beznea (5): phy: renesas: rcar-gen3-usb2: Move IRQ request in probe phy: renesas: rcar-gen3-usb2: Lock around hardware registers and driver data phy: renesas: rcar-gen3-usb2: Assert PLL reset on PHY power off serial: sh-sci: Update the suspend/resume support pinctrl: renesas: rzg2l: Add suspend/resume support for pull up/down Coly Li (1): badblocks: Fix a nonsense WARN_ON() which checks whether a u64 variable < 0 Cong Wang (1): sch_hfsc: Fix qlen accounting bug when using peek in hfsc_enqueue() Cristian Ciocaltea (1): drm/rockchip: vop2: Improve display modes handling on RK3588 HDMI0 Csókás, Bence (1): net: fec: Refactor MAC reset to function Damon Ding (1): phy: phy-rockchip-samsung-hdptx: Swap the definitions of LCPLL_REF and ROPLL_REF Dan Carpenter (2): pmdomain: core: Fix error checking in genpd_dev_pm_attach_by_id() pinctrl: tegra: Fix off by one in tegra_pinctrl_get_group() Daniel Gabay (1): wifi: iwlwifi: w/a FW SMPS mode selection Daniel Gomez (2): kconfig: merge_config: use an empty file as initfile drm/xe: xe_gen_wa_oob: replace program_invocation_short_name Daniel Hsu (1): mctp: Fix incorrect tx flow invalidation condition in mctp-i2c Danny Wang (1): drm/amd/display: Do not enable replay when vtotal update is pending. Darrick J. Wong (1): block: fix race between set_blocksize and read paths Dave Ertman (1): ice: Fix LACP bonds without SRIOV environment Dave Jiang (1): dmaengine: idxd: Fix ->poll() return value David Hildenbrand (1): kernel/fork: only call untrack_pfn_clear() on VMAs duplicated for fork() David Lechner (1): iio: adc: ad7944: don't use storagebits for sizing David Plowman (1): media: i2c: imx219: Correct the minimum vblanking value David Rosca (1): drm/amdgpu: Update SRIOV video codec caps David Wei (1): tools: ynl-gen: validate 0 len strings from kernel Davidlohr Bueso (6): fs/buffer: split locking for pagecache lookups fs/buffer: introduce sleeping flavors for pagecache lookups fs/buffer: use sleeping version of __find_get_block() fs/ocfs2: use sleeping version of __find_get_block() fs/jbd2: use sleeping version of __find_get_block() fs/ext4: use sleeping version of sb_find_get_block() Depeng Shao (2): media: qcom: camss: csid: Only add TPG v4l2 ctrl if TPG hardware is available media: qcom: camss: Add default case in vfe_src_pad_code Dhananjay Ugwekar (1): cpufreq: amd-pstate: Remove unnecessary driver_lock in set_boost Dian-Syuan Yang (1): wifi: rtw89: set force HE TB mode when connecting to 11ax AP Dillon Varone (4): drm/amd/display: Configure DTBCLK_P with OPTC only for dcn401 drm/amd/display: Fix DMUB reset sequence for DCN401 drm/amd/display: Fix p-state type when p-state is unsupported drm/amd/display: Populate register address for dentist for dcn401 Diogo Ivo (2): ACPI: PNP: Add Intel OC Watchdog IDs to non-PNP device list arm64: tegra: p2597: Fix gpio for vdd-1v8-dis regulator Dmitry Baryshkov (6): nvmem: core: fix bit offsets of more than one byte nvmem: core: verify cell's raw_len nvmem: core: update raw_len if the bit reading is required nvmem: qfprom: switch to 4-byte aligned reads phy: core: don't require set_mode() callback for phy_get_mode() to work pinctrl: qcom: switch to devm_register_sys_off_handler() Dmitry Bogdanov (1): scsi: target: iscsi: Fix timeout on deleted connection Dominik Grzegorzek (1): padata: do not leak refcount in reorder_work Dongli Zhang (1): vhost-scsi: protect vq->log_used with vq->mutex Douglas Anderson (1): drm/panel-edp: Add Starry 116KHD024006 Ed Burcher (1): ALSA: hda/realtek: Add quirk for Lenovo Yoga Pro 7 14ASP10 Eddie James (1): eeprom: ee1004: Check chip before probing Eduard Zingerman (3): bpf: don't do clean_live_states when state->loop_entry->branches > 0 bpf: copy_verifier_state() should copy 'loop_entry' field bpf: abort verification if env->cur_state->loop_entry != NULL Emily Deng (1): drm/amdgpu: Fix missing drain retry fault the last entry Emmanuel Grumbach (2): wifi: iwlwifi: fix the ECKV UEFI variable name wifi: mac80211: set ieee80211_prep_tx_info::link_id upon Auth Rx En-Wei Wu (1): Bluetooth: btusb: use skb_pull to avoid unsafe access in QCA dump handling Eric Dumazet (5): cgroup/rstat: avoid disabling irqs for O(num_cpu) posix-timers: Add cond_resched() to posix_timer_add() search loop tcp: bring back NUMA dispersion in inet_ehash_locks_alloc() net: flush_backlog() small changes idpf: fix idpf_vport_splitq_napi_poll() Eric Huang (1): drm/amdkfd: fix missing L2 cache info in topology Eric Woudstra (1): net: ethernet: mtk_ppe_offload: Allow QinQ, double ETH_P_8021Q only Erick Shepherd (2): mmc: host: Wait for Vdd to settle on card power off mmc: sdhci: Disable SD card clock before changing parameters Felix Fietkau (1): wifi: mt76: only mark tx-status-failed frames as ACKed on mt76x0/2 Felix Kuehling (1): drm/amdgpu: Allow P2P access through XGMI Filipe Manana (3): btrfs: fix non-empty delayed iputs list on unmount due to async workers btrfs: get zone unusable bytes while holding lock at btrfs_reclaim_bgs_work() btrfs: send: return -ENAMETOOLONG when attempting a path that is too long Flora Cui (2): drm/amdgpu/discovery: check ip_discovery fw file available drm/amdgpu: release xcp_mgr on exit Frank Li (3): PCI: dwc: ep: Ensure proper iteration over outbound map windows PCI: dwc: Use resource start as ioremap() input in dw_pcie_pme_turn_off() i3c: master: svc: Flush FIFO before sending Dynamic Address Assignment(DAA) Frederick Lawler (1): ima: process_measurement() needlessly takes inode_lock() on MAY_READ Frediano Ziglio (1): xen: Add support for XenServer 6.1 platform device Gabor Juhos (1): arm64: dts: marvell: uDPU: define pinctrl state for alarm LEDs Gao Xiang (1): erofs: initialize decompression early Gaurav Batra (2): powerpc/pseries/iommu: memory notifier incorrectly adds TCEs for pmemory powerpc/pseries/iommu: create DDW for devices with DMA mask less than 64-bits Gašper Nemgar (1): platform/x86: ideapad-laptop: add support for some new buttons Geert Uytterhoeven (3): ipv4: ip_gre: Fix set but not used warning in ipgre_err() if IPv4-only pmdomain: renesas: rcar: Remove obsolete nullify checks serial: sh-sci: Save and restore more registers Geetha sowjanya (1): octeontx2-af: Fix APR entry mapping based on APR_LMT_CFG George Shen (3): drm/amd/display: Skip checking FRL_MODE bit for PCON BW determination drm/amd/display: Read LTTPR ALPM caps during link cap retrieval drm/amd/display: Update CR AUX RD interval interpretation Goldwyn Rodrigues (1): btrfs: correct the order of prelim_ref arguments in btrfs__prelim_ref Greg Kroah-Hartman (2): spi: use container_of_cont() for to_spi_device() Linux 6.12.31 Guangguan Wang (1): net/smc: use the correct ndev to find pnetid by pnetid table Hangbin Liu (1): bonding: report duplicate MAC address in all situations Hans Verkuil (2): media: cx231xx: set device_caps for 417 media: test-drivers: vivid: don't call schedule in loop Hans de Goede (1): mei: vsc: Use struct vsc_tp_packet as vsc-tp tx_buf and rx_buf type Hans-Frieder Vogt (2): net: tn40xx: add pci-id of the aqr105-based Tehuti TN4010 cards net: tn40xx: create swnode for mdio and aqr105 phy and add to mdiobus Haoran Jiang (1): samples/bpf: Fix compilation failure for samples/bpf on LoongArch Fedora Hariprasad Kelam (1): Octeontx2-af: RPM: Register driver with PCI subsys IDs Harish Kasiviswanathan (3): drm/amdkfd: Set per-process flags only once for gfx9/10/11/12 drm/amdkfd: Set per-process flags only once cik/vi drm/amdgpu: Set snoop bit for SDMA for MI series Harry VanZyllDeJong (1): drm/amd/display: Add support for disconnected eDP streams Harry Wentland (1): drm/amd/display: Don't treat wb connector as physical in create_validate_stream_for_sink Hector Martin (4): soc: apple: rtkit: Implement OSLog buffers properly ASoC: tas2764: Add reg defaults for TAS2764_INT_CLK_CFG ASoC: tas2764: Mark SW_RESET as volatile ASoC: tas2764: Power up/down amp on mute ops Heiko Carstens (1): s390/tlb: Use mm_has_pgste() instead of mm_alloc_pgste() Heiko Stuebner (2): nvmem: rockchip-otp: Move read-offset into variant-data nvmem: rockchip-otp: add rk3576 variant data Heiner Kallweit (1): r8169: don't scan PHY addresses > 0 Heming Zhao (1): dlm: make tcp still work in multi-link env Herbert Xu (3): crypto: lzo - Fix compression buffer overrun crypto: ahash - Set default reqsize from ahash_alg crypto: skcipher - Zap type in crypto_alloc_sync_skcipher Huacai Chen (1): net: stmmac: dwmac-loongson: Set correct {tx,rx}_fifo_size Ian Rogers (1): tools/build: Don't pass test log files to linker Ido Schimmel (2): vxlan: Annotate FDB data races bridge: netfilter: Fix forwarding of fragmented packets Ignacio Moreno Gonzalez (1): mm: mmap: map MAP_STACK to VM_NOHUGEPAGE only if THP is enabled Ihor Solodrai (1): selftests/bpf: Mitigate sockmap_ktls disconnect_after_delete failure Ilan Peer (1): wifi: mac80211_hwsim: Fix MLD address translation Ilia Gavrilov (1): llc: fix data loss when reading from a socket in llc_ui_recvmsg() Ilpo Järvinen (2): tcp: reorganize tcp_in_ack_event() and tcp_count_delivered() PCI: Fix old_size lower bound in calculate_iosize() too Ilya Bakoulin (2): drm/amd/display: Fix BT2020 YCbCr limited/full range input drm/amd/display: Don't try AUX transactions on disconnected link Ingo Molnar (1): x86/stackprotector/64: Only export __ref_stack_chk_guard on CONFIG_SMP Inochi Amaoto (1): pinctrl: sophgo: avoid to modify untouched bit when setting cv1800 pinconf Isaac Scott (1): regulator: ad5398: Add device tree support Ivan Pravdin (1): crypto: algif_hash - fix double free in hash_accept Jaakko Karrenpalo (1): net: hsr: Fix PRP duplicate detection Jacob Keller (1): ice: fix vf->num_mac count with port representors Jaegeuk Kim (1): f2fs: introduce f2fs_base_attr for global sysfs entries Jakob Unterwurzacher (1): net: dsa: microchip: linearize skb for tail-tagging switches Jakub Kicinski (3): eth: mlx4: don't try to complete XDP frames in netpoll net: page_pool: avoid false positive warning if NAPI was never added tools: ynl-gen: don't output external constants Jan Kara (1): jbd2: do not try to recover wiped journal Janne Grunau (1): soc: apple: rtkit: Use high prio work queue Jason Andryuk (1): xenbus: Allow PVH dom0 a non-local xenstore Jason Gunthorpe (1): genirq/msi: Store the IOMMU IOVA directly in msi_desc instead of iommu_cookie Jeff Chen (1): wifi: mwifiex: Fix HT40 bandwidth issue. Jens Axboe (1): io_uring/fdinfo: annotate racy sq/cq head/tail reads Jernej Skrabec (1): Revert "arm64: dts: allwinner: h6: Use RSB for AXP805 PMIC connection" Jessica Zhang (1): drm: Add valid clones check Jianbo Liu (1): net/mlx5e: Add correct match to check IPSec syndromes for switchdev mode Jiang Liu (1): drm/amdgpu: reset psp->cmd to NULL after releasing the buffer Jiasheng Jiang (1): dpll: Add an assertion to check freq_supported_num Jing Su (1): dql: Fix dql->limit value when reset. Jing Zhou (1): drm/amd/display: Guard against setting dispclk low for dcn31x Jinliang Zheng (1): dm: fix unconditional IO throttle caused by REQ_PREFLUSH Jinqian Yang (1): arm64: Add support for HIP09 Spectre-BHB mitigation Johannes Berg (7): wifi: iwlwifi: fix debug actions order wifi: iwlwifi: mark Br device not integrated wifi: mac80211: fix warning on disconnect during failed ML reconf wifi: iwlwifi: use correct IMR dump variable wifi: mac80211: don't unconditionally call drv_mgd_complete_tx() wifi: mac80211: remove misplaced drv_mgd_complete_tx() call wifi: iwlwifi: add support for Killer on MTL Johannes Thumshirn (1): block: only update request sector if needed John Olender (1): drm/amd/display: Defer BW-optimization-blocked DRR adjustments Jon Hunter (1): arm64: tegra: Resize aperture for the IGX PCIe C5 slot Jonas Karlman (1): net: stmmac: dwmac-rk: Validate GRF and peripheral GRF during probe Jonathan Kim (1): drm/amdkfd: set precise mem ops caps to disabled for gfx 11 and 12 Jonathan McDowell (1): tpm: Convert warn to dbg in tpm2_start_auth_session() Jordan Crouse (1): clk: qcom: camcc-sm8250: Use clk_rcg2_shared_ops for some RCGs Josh Poimboeuf (2): objtool: Properly disable uaccess validation objtool: Fix error handling inconsistencies in check() Joshua Aberback (1): drm/amd/display: Increase block_sequence array size Justin Tee (3): scsi: lpfc: Handle duplicate D_IDs in ndlp search-by D_ID routine scsi: lpfc: Ignore ndlp rport mismatch in dev_loss_tmo callbk scsi: lpfc: Free phba irq in lpfc_sli4_enable_msi() when pci_irq_vector() fails Kai Mäkisara (4): scsi: st: Tighten the page format heuristics with MODE SELECT scsi: st: ERASE does not change tape location scsi: scsi_debug: First fixes for tapes scsi: st: Restore some drive settings after reset Kai Vehmanen (1): ASoc: SOF: topology: connect DAI to a single DAI link Karl Chan (1): clk: qcom: ipq5018: allow it to be bulid on arm32 Kaustabh Chakraborty (1): mmc: dw_mmc: add exynos7870 DW MMC support Kees Cook (6): PNP: Expand length of fixup id string net/mlx4_core: Avoid impossible mlx4_db_alloc() order value pstore: Change kmsg_bytes storage size to u32 btrfs: compression: adjust cb->compressed_folios allocation type mm: vmalloc: actually use the in-place vrealloc region mm: vmalloc: only zero-init on vrealloc shrink Kevin Krakauer (1): selftests/net: have `gro.sh -t` return a correct exit code Konstantin Andreev (2): smack: recognize ipv4 CIPSO w/o categories smack: Revert "smackfs: Added check catlen" Konstantin Shkolnyy (1): vdpa/mlx5: Fix mlx5_vdpa_get_config() endianness on big-endian machines Konstantin Taranov (1): net/mana: fix warning in the writer of client oob Krzysztof Kozlowski (4): ASoC: codecs: wsa884x: Correct VI sense channel mask ASoC: codecs: wsa883x: Correct VI sense channel mask can: c_can: Use of_property_present() to test existence of DT property clk: qcom: clk-alpha-pll: Do not use random stack value for recalc rate Kuan-Chung Chen (1): wifi: rtw89: 8922a: fix incorrect STA-ID in EHT MU PPDU Kuhanh Murugasen Krishnan (1): fpga: altera-cvp: Increase credit timeout Kuninori Morimoto (1): ASoC: soc-dai: check return value at snd_soc_dai_set_tdm_slot() Kuniyuki Iwashima (2): ipv4: fib: Move fib_valid_key_len() to rtm_to_fib_config(). ip: fib_rules: Fetch net from fib_rule in fib[46]_rule_configure(). Kurt Borja (1): hwmon: (dell-smm) Increment the number of fans Lad Prabhakar (1): clk: renesas: rzg2l-cpg: Refactor Runtime PM clock validation Larisa Grigore (2): spi: spi-fsl-dspi: restrict register range for regmap access spi: spi-fsl-dspi: Reset SR flags before sending a new message Len Brown (1): tools/power turbostat: Clustered Uncore MHz counters should honor show/hide options Leo Zeng (1): Revert "drm/amd/display: Request HW cursor on DCN3.2 with SubVP" Leon Huang (1): drm/amd/display: Fix incorrect DPCD configs while Replay/PSR switch Leon Romanovsky (1): xfrm: prevent high SEQ input in non-ESN mode Li Bin (1): ARM: at91: pm: fix at91_suspend_finish for ZQ calibration Lijo Lazar (2): drm/amd/pm: Fetch current power limit from PMFW drm/amdgpu: Use active umc info from discovery Lin.Cao (1): drm/buddy: fix issue that force_merge cannot free all roots Linus Torvalds (3): gcc-15: make 'unterminated string initialization' just a warning gcc-15: disable '-Wunterminated-string-initialization' entirely for now Fix mis-uses of 'cc-option' for warning disablement Linus Walleij (1): ASoC: pcm6240: Drop bogus code handling IRQ as GPIO Lorenzo Stoakes (1): intel_th: avoid using deprecated page->mapping, index fields Lucas De Marchi (2): drm/xe: Stop ignoring errors from xe_ttm_stolen_mgr_init() drm/xe: Fix xe_tile_init_noalloc() error propagation Luis de Arquer (1): spi-rockchip: Fix register out of bounds access Luiz Augusto von Dentz (1): Bluetooth: L2CAP: Fix not checking l2cap_chan security level Maarten Lankhorst (2): drm/xe: Move suballocator init to after display init drm/xe: Do not attempt to bootstrap VF in execlists mode Maciej S. Szmigiero (1): ALSA: hda/realtek: Enable PC beep passthrough for HP EliteBook 855 G7 Maher Sanalla (1): RDMA/uverbs: Propagate errors from rdma_lookup_get_uobject() Manish Pandey (1): scsi: ufs: Introduce quirk to extend PA_HIBERN8TIME for UFS devices Marcos Paulo de Souza (1): printk: Check CON_SUSPEND when unblanking a console Marek Szyprowski (1): dma-mapping: avoid potential unused data compilation warning Marek Vasut (1): leds: trigger: netdev: Configure LED blink interval for HW offload Mario Limonciello (1): Revert "drm/amd: Keep display off while going into S4" Mark Harmstone (1): btrfs: avoid linker error in btrfs_find_create_tree_block() Mark Pearson (1): platform/x86: think-lmi: Fix attribute name usage for non-compliant items Markus Elfring (1): media: c8sectpfe: Call of_node_put(i2c_bus) only once in c8sectpfe_probe() Martin Blumenstingl (1): pinctrl: meson: define the pull up/down resistor value as 60 kOhm Martin KaFai Lau (1): bpf: Use kallsyms to find the function name of a struct_ops's stub function Martin Povišer (1): ASoC: ops: Enforce platform maximum on initial value Martin Tsai (1): drm/amd/display: Support multiple options during psr entry. Masahiro Yamada (1): kconfig: do not clear SYMBOL_VALID when reading include/config/auto.conf Matt Johnston (1): fuse: Return EPERM rather than ENOSYS from link() Matthew Brost (2): drm/xe: Nuke VM's mapping upon close drm/xe: Retry BO allocation Matthew Sakai (1): dm vdo: use a short static string for thread name prefix Matthew Wilcox (Oracle) (2): orangefs: Do not truncate file size highmem: add folio_test_partial_kmap() Matthias Fend (1): media: tc358746: improve calculation of the D-PHY timing registers Matthieu Baerts (NGI0) (1): mptcp: pm: userspace: flags: clearer msg if no remote addr Matti Lehtimäki (2): remoteproc: qcom_wcnss: Handle platforms with only single power domain remoteproc: qcom_wcnss: Fix on platforms without fallback regulators Michael Margolin (1): RDMA/core: Fix best page size finding when it can cross SG entries Michal Pecio (1): usb: xhci: Don't change the status of stalled TDs on failed Stop EP Michal Swiatkowski (3): ice: init flow director before RDMA ice: treat dyn_allowed only as suggestion ice: count combined queues using Rx/Tx count Michal Wajdeczko (3): drm/xe/relay: Don't use GFP_KERNEL for new transactions drm/xe/pf: Reset GuC VF config when unprovisioning critical resource drm/xe/sa: Always call drm_suballoc_manager_fini() Mika Westerberg (1): thunderbolt: Do not add non-active NVM if NVM upgrade is disabled for retimer Mike Christie (1): vhost-scsi: Return queue full for page alloc failures during copy Mikulas Patocka (1): dm: restrict dm device size to 2^63-512 bytes Ming Lei (1): blk-throttle: don't take carryover for prioritized processing of metadata Ming Yen Hsieh (1): wifi: mt76: mt7925: load the appropriate CLC data based on hardware type Ming-Hung Tsai (1): dm cache: prevent BUG_ON by blocking retries on failed device resumes Miri Korenblit (2): wifi: iwlwifi: don't warn when if there is a FW error wifi: iwlwifi: don't warn during reprobe Moshe Shemesh (1): net/mlx5: Avoid report two health errors on same syndrome Mrinmay Sarkar (1): PCI: epf-mhi: Update device ID for SA8775P Mykyta Yatsenko (1): bpf: Return prog btf_id without capable check Naman Trivedi (1): arm64: zynqmp: add clock-output-names property in clock nodes Namjae Jeon (2): cifs: add validation check for the fields in smb_aces ksmbd: fix stream write failure Nandakumar Edamana (1): libbpf: Fix out-of-bound read Nathan Chancellor (2): kbuild: Properly disable -Wunterminated-string-initialization for clang i3c: master: svc: Fix implicit fallthrough in svc_i3c_master_ibi_work() Nicholas Kazlauskas (2): drm/amd/display: Ensure DMCUB idle before reset on DCN31/DCN35 drm/amd/display: Guard against setting dispclk low when active Nicholas Susanto (1): drm/amd/display: Enable urgent latency adjustment on DCN35 Nick Hu (1): clocksource/drivers/timer-riscv: Stop stimecmp when cpu hotplug Nicolas Bouchinet (2): netfilter: conntrack: Bound nf_conntrack sysctl writes scsi: logging: Fix scsi_logging_level bounds Nicolas Bretz (1): ext4: on a remount, only log the ro or r/w state when it has changed Nicolas Escande (1): wifi: ath12k: fix ath12k_hal_tx_cmd_ext_desc_setup() info1 override Niklas Cassel (1): misc: pci_endpoint_test: Give disabled BARs a distinct error code Niklas Neronin (1): usb: xhci: set page size to the xHCI-supported size Niklas Söderlund (1): media: adv7180: Disable test-pattern control on adv7180 Nir Lichtman (1): x86/build: Fix broken copy command in genimage.sh when making isoimage Nícolas F. R. A. Prado (4): thermal/drivers/mediatek/lvts: Start sensor interrupts disabled ASoC: mediatek: mt6359: Add stub for mt6359_accdet_enable_jack_detect ASoC: mediatek: mt8188: Treat DMIC_GAINx_CUR as non-volatile ASoC: mediatek: mt8188: Add reference for dmic clocks Oak Zeng (1): drm/xe: Reject BO eviction if BO is bound to current VM Oliver Hartkopp (2): can: bcm: add locking for bcm_op runtime updates can: bcm: add missing rcu read protection for procfs content Olivier Moysan (1): drm: bridge: adv7511: fill stream capabilities Ovidiu Bunea (1): drm/amd/display: Exit idle optimizations before accessing PHY P Praneesh (3): wifi: ath12k: fix the ampdu id fetch in the HAL_RX_MPDU_START TLV wifi: ath12k: Fix end offset bit definition in monitor ring descriptor wifi: ath11k: Use dma_alloc_noncoherent for rx_tid buffer allocation Pali Rohár (7): cifs: Add fallback for SMB2 CREATE without FILE_READ_ATTRIBUTES cifs: Fix querying and creating MF symlinks over SMB1 cifs: Fix negotiate retry functionality cifs: Set default Netbios RFC1001 server name to hostname in UNC cifs: Fix establishing NetBIOS session for SMB2+ connection cifs: Fix and improve cifs_query_path_info() and cifs_query_file_info() cifs: Fix changing times and read-only attr over SMB1 smb_set_file_info() function Patrisious Haddad (1): net/mlx5: Change POOL_NEXT_SIZE define value and make it global Paul Burton (2): MIPS: pm-cps: Use per-CPU variables as per-CPU, not per-core clocksource: mips-gic-timer: Enable counter when CPUs start Paul Chaignon (1): xfrm: Sanitize marks before insert Paul E. McKenney (1): rcu: Fix get_state_synchronize_rcu_full() GP-start detection Paul Elder (1): media: imx335: Set vblank immediately Paul Kocialkowski (1): net: dwmac-sun8i: Use parsed internal PHY address instead of 1 Pavan Kumar Linga (1): idpf: fix null-ptr-deref in idpf_features_check Pavel Begunkov (3): io_uring: don't duplicate flushing in io_req_post_cqe io_uring/msg: initialise msg request opcode io_uring: fix overflow resched cqe reordering Pavel Nikulin (1): platform/x86: asus-wmi: Disable OOBE state after resume from hibernation Paweł Anikiel (1): x86/Kconfig: make CFI_AUTO_DEFAULT depend on !RUST or Rust >= 1.88 Pedro Nishiyama (1): Bluetooth: Disable SCO support if READ_VOICE_SETTING is unsupported/broken Peichen Huang (1): drm/amd/display: not abort link train when bw is low Pengyu Luo (1): cpufreq: Add SM8650 to cpufreq-dt-platdev blocklist Peter Seiderer (2): net: pktgen: fix mpls maximum labels list parsing net: pktgen: fix access outside of user given buffer in pktgen_thread_write() Peter Ujfalusi (3): ASoC: SOF: ipc4-control: Use SOF_CTRL_CMD_BINARY as numid for bytes_ext ASoC: SOF: Intel: hda-bus: Use PIO mode on ACE2+ platforms ASoC: SOF: ipc4-pcm: Delay reporting is only supported for playback direction Peter Zijlstra (3): perf/core: Clean up perf_try_init_event() x86/ibt: Handle FineIBT in handle_cfi_failure() x86/traps: Cleanup and robustify decode_bug() Peter Zijlstra (Intel) (1): perf: Avoid the read if the count is already updated Petr Machata (2): vxlan: Join / leave MC group after remote changes bridge: mdb: Allow replace of a host-joined group Philip Redkin (1): x86/mm: Check return value from memblock_phys_alloc_range() Philip Yang (1): drm/amdkfd: KFD release_work possible circular locking Ping-Ke Shih (7): wifi: rtw89: fw: propagate error code from rtw89_h2c_tx() wifi: rtw89: fw: get sb_sel_ver via get_unaligned_le32() wifi: rtw89: fw: add blacklist to avoid obsolete secure firmware wifi: rtw89: fw: validate multi-firmware header before getting its size wifi: rtw89: fw: validate multi-firmware header before accessing wifi: rtw89: call power_on ahead before selecting firmware wifi: rtw89: add wiphy_lock() to work that isn't held wiphy_lock() yet Prathamesh Shete (1): pinctrl-tegra: Restore SFSEL bit when freeing pins Qu Wenruo (2): btrfs: run btrfs_error_commit_super() early btrfs: avoid NULL pointer dereference if no valid csum tree Quan Zhou (1): wifi: mt76: mt7925: fix fails to enter low power mode in suspend state Raag Jadav (2): devres: Introduce devm_kmemdup_array() err.h: move IOMEM_ERR_PTR() to err.h Rafael J. Wysocki (1): cpuidle: menu: Avoid discarding useful information Ramasamy Kaliappan (1): wifi: ath12k: Improve BSS discovery with hidden SSID in 6 GHz band Ranjan Kumar (2): scsi: mpi3mr: Add level check to control event logging scsi: mpi3mr: Update timestamp only for supervisor IOCs Ravi Bangoria (2): perf/amd/ibs: Fix perf_ibs_op.cnt_mask for CurCnt perf/amd/ibs: Fix ->config to sample period calculation for OP PMU Rex Lu (1): wifi: mt76: mt7996: fix SER reset trigger on WED reset Ricardo Ribalda (2): media: uvcvideo: Add sanity check to uvc_ioctl_xu_ctrl_map media: uvcvideo: Handle uvc menu translation inside uvc_get_le_value Ritesh Harjani (IBM) (1): book3s64/radix: Fix compile errors when CONFIG_ARCH_WANT_OPTIMIZE_DAX_VMEMMAP=n Rob Herring (Arm) (1): perf: arm_pmuv3: Call kvm_vcpu_pmu_resync_el0() before enabling counters Robert Richter (1): libnvdimm/labels: Fix divide error in nd_label_data_init() Robin Murphy (1): iommu: Keep dev->iommu state consistent Roger Pau Monne (2): PCI: vmd: Disable MSI remapping bypass under Xen xen/pci: Do not register devices with segments >= 0x10000 Ronak Doshi (1): vmxnet3: update MTU after device quiesce Rosen Penev (1): wifi: ath9k: return by of_get_mac_address Ryan Roberts (2): arm64/mm: Check pmd_table() in pmd_trans_huge() arm64/mm: Check PUD_TYPE_TABLE in pud_bad() Ryan Walklin (1): ASoC: sun4i-codec: support hp-det-gpios property Ryo Takakura (1): lockdep: Fix wait context check on softirq for PREEMPT_RT Ryusuke Konishi (1): nilfs2: fix deadlock warnings caused by lock dependency in init_nilfs() Sabrina Dubroca (2): espintcp: fix skb leaks espintcp: remove encap socket caching to avoid reference leak Sagi Maimon (1): ptp: ocp: Limit signal/freq counts in summary output functions Sakari Ailus (1): media: v4l: Memset argument to 0 before calling get_mbus_config pad op Saket Kumar Bhaskar (1): perf/hw_breakpoint: Return EOPNOTSUPP for unsupported breakpoint type Salah Triki (1): smb: server: smb2pdu: check return value of xa_store() Samuel Holland (1): riscv: Allow NOMMU kernels to access all of RAM Saranya Gopal (1): platform/x86/intel: hid: Add Pantherlake support Satyanarayana K V P (2): drm/xe/vf: Retry sending MMIO request to GUC on timeout error drm/xe/pf: Create a link between PF and VF devices Sean Anderson (1): spi: zynqmp-gqspi: Always acknowledge interrupts Sean Wang (1): Bluetooth: btmtksdio: Prevent enabling interrupts after IRQ handler removal Seongman Lee (1): x86/sev: Fix operator precedence in GHCB_MSR_VMPL_REQ_LEVEL macro Sergio Perez Gonzalez (1): spi: spi-mux: Fix coverity issue, unchecked return value Seyediman Seyedarab (1): kbuild: fix argument parsing in scripts/config Shahar Shitrit (2): net/mlx5: Modify LSB bitmask in temperature event to include only the first bit net/mlx5: Apply rate-limiting to high temperature warning Shashank Gupta (1): crypto: octeontx2 - suppress auth failure screaming due to negative tests Shivasharan S (1): scsi: mpt3sas: Send a diag reset if target reset fails Shiwu Zhang (1): drm/amdgpu: enlarge the VBIOS binary size limit Shixiong Ou (1): fbdev: fsl-diu-fb: add missing device_remove_file() Shree Ramamoorthy (1): mfd: tps65219: Remove TPS65219_REG_TI_DEV_ID check Shuicheng Lin (1): drm/xe/debugfs: Add missing xe_pm_runtime_put in wedge_mode_set Simona Vetter (1): drm/atomic: clarify the rules around drm_atomic_state->allow_modeset Siva Durga Prasad Paladugu (1): firmware: xilinx: Dont send linux address to get fpga config get status Soeren Moch (1): wifi: rtl8xxxu: retry firmware download on error Sohil Mehta (2): x86/smpboot: Fix INIT delay assignment for extended Intel Families x86/microcode: Update the Intel processor flag scan check Stanimir Varbanov (2): PCI: brcmstb: Expand inbound window size up to 64GB PCI: brcmstb: Add a softdep to MIP MSI-X driver Stanley Chu (1): i3c: master: svc: Fix missing STOP for master request Stefan Binding (1): ASoC: intel/sdw_utils: Add volume limit to cs42l43 speakers Stefan Wahren (3): staging: vchiq_arm: Create keep-alive thread during probe drm/v3d: Add clock handling dmaengine: fsl-edma: Fix return code for unhandled interrupts Stefano Garzarella (1): vhost_task: fix vhost_task_create() documentation Stephan Gerhold (1): i2c: qup: Vote for interconnect bandwidth to DRAM Subbaraya Sundeep (1): octeontx2-af: Set LMT_ENA bit for APR table entries Sudeep Holla (4): mailbox: pcc: Use acpi_os_ioremap() instead of ioremap() firmware: arm_ffa: Reject higher major version as incompatible firmware: arm_ffa: Handle the presence of host partition in the partition info firmware: arm_scmi: Relax duplicate name constraint across protocol ids Suman Ghosh (1): octeontx2-pf: Add AF_XDP non-zero copy support Sungjong Seo (1): exfat: call bh_read in get_block only when necessary Sven Schwermer (1): crypto: mxs-dcp - Only set OTP_KEY bit for OTP key Svyatoslav Ryhel (1): ARM: tegra: Switch DSI-B clock parent to PLLD on Tegra114 Takashi Iwai (5): ALSA: seq: Improve data consistency at polling ASoC: Intel: bytcr_rt5640: Add DMI quirk for Acer Aspire SW3-013 ALSA: hda/realtek: Add quirk for HP Spectre x360 15-df1xxx ALSA: usb-audio: Fix duplicated name in MIDI substream names ALSA: pcm: Fix race of buffer access at PCM OSS layer Taniya Das (1): clk: qcom: lpassaudiocc-sc7280: Add support for LPASS resets for QCM6490 Tavian Barnes (1): ASoC: SOF: Intel: hda: Fix UAF when reloading module Thangaraj Samynathan (1): net: lan743x: Restore SGMII CTRL register on resume Thomas Gleixner (1): posix-timers: Ensure that timer initialization is fully visible Thomas Huth (1): x86/headers: Replace __ASSEMBLY__ with __ASSEMBLER__ in UAPI headers Thomas Weißschuh (1): timer_list: Don't use %pK through printk() Thomas Zimmermann (3): drm/gem: Test for imported GEM buffers with helper drm/ast: Find VBIOS mode from regular display size drm/gem: Internally test import_attach for imported objects Tianyang Zhang (1): mm/page_alloc.c: avoid infinite retries caused by cpuset race Tiwei Bie (1): um: Update min_low_pfn to match changes in uml_reserved Tobias Brunner (1): xfrm: Fix UDP GRO handling for some corner cases Tom Chung (1): drm/amd/display: Initial psr_version with correct setting Trond Myklebust (7): NFSv4: Check for delegation validity in nfs_start_delegation_return_locked() NFS: Don't allow waiting for exiting tasks SUNRPC: Don't allow waiting for exiting tasks NFSv4: Treat ENETUNREACH errors as fatal for state recovery SUNRPC: rpc_clnt_set_transport() must not change the autobind setting SUNRPC: rpcbind should never reset the port to the value '0' pNFS/flexfiles: Report ENETDOWN as a connection error Tudor Ambarus (1): mailbox: use error ret code of of_parse_phandle_with_args() Uday Shankar (1): ublk: enforce ublks_max only for unprivileged devices Umesh Nerlige Ramappa (1): drm/xe/oa: Ensure that polled read returns latest data Uros Bizjak (1): x86/locking: Use ALT_OUTPUT_SP() for percpu_{,try_}cmpxchg{64,128}_op() Valentin Caron (1): pinctrl: devicetree: do not goto err when probing hogs in pinctrl_dt_to_map Vasant Hegde (1): iommu/amd/pgtbl_v2: Improve error handling Vicki Pfau (1): Input: xpad - add more controllers Victor Lu (1): drm/amdgpu: Do not program AGP BAR regs under SRIOV in gfxhub_v1_0.c Victor Skvortsov (1): drm/amdgpu: Skip pcie_replay_count sysfs creation for VF Vijendar Mukunda (1): soundwire: amd: change the soundwire wake enable/disable sequence Viktor Malik (1): bpftool: Fix readlink usage in get_fd_type Vinicius Costa Gomes (1): dmaengine: idxd: Fix allowing write() from different address spaces Vinith Kumar R (1): wifi: ath12k: Report proper tx completion status to mac80211 Viresh Kumar (1): firmware: arm_ffa: Set dma_mask for ffa devices Vitalii Mordan (1): i2c: pxa: fix call balance of i2c->clk handling routines Vladimir Kondratiev (1): irqchip/riscv-aplic: Add support for hart indexes Vladimir Moskovkin (1): platform/x86: dell-wmi-sysman: Avoid buffer overflow in current_password_store() Vladimir Oltean (1): net: enetc: refactor bulk flipping of RX buffers to separate function Waiman Long (1): x86/nmi: Add an emergency handler in nmi_desc & use it in nmi_shootdown_cpus() Wang Liang (1): net/tipc: fix slab-use-after-free Read in tipc_aead_encrypt_done Wang Zhaolong (3): smb: client: Store original IO parameters and prevent zero IO sizes smb: client: Fix use-after-free in cifs_fill_dirent smb: client: Reset all search buffer pointers when releasing buffer Wentao Guan (2): nvme-pci: add quirks for device 126f:1001 nvme-pci: add quirks for WDC Blue SN550 15b7:5009 Willem de Bruijn (1): ipv6: save dontfrag in cork William Tu (3): net/mlx5e: set the tx_queue_len for pfifo_fast net/mlx5e: reduce rep rxq depth to 256 for ECPF net/mlx5e: reduce the max log mpwrq sz for ECPF and reps Xiao Liang (1): net: ipv6: Init tunnel link-netns before registering dev Xiaofei Tan (1): ACPI: HED: Always initialize before evged Xin Li (Intel) (1): x86/fred: Fix system hang during S4 resume with FRED enabled Xin Wang (1): drm/xe/debugfs: fixed the return value of wedged_mode_set Yeoreum Yun (1): coresight-etb10: change etb_drvdata spinlock's type to raw_spinlock_t Yi Liu (2): iommufd: Extend IOMMU_GET_HW_INFO to report PASID capability iommufd: Disallow allocating nested parent domain with fault ID Yihan Zhu (1): drm/amd/display: handle max_downscale_src_width fail check Yonghong Song (1): bpf: Allow pre-ordering for bpf cgroup progs Youssef Samir (1): accel/qaic: Mask out SR-IOV PCI resources Yuanjun Gong (1): leds: pwm-multicolor: Add check for fwnode_property_read_u32 Zhang Rui (1): thermal: intel: x86_pkg_temp_thermal: Fix bogus trip temperature Zhang Yi (2): ext4: don't write back data before punch hole in nojournal mode ext4: remove writable userspace mappings before truncating page cache Zhi Wang (1): drm/nouveau: fix the broken marco GSP_MSG_MAX_SIZE Zhikai Zhai (1): drm/amd/display: calculate the remain segments for all pipes Zhongqiu Han (1): virtio_ring: Fix data race by tagging event_triggered as racy for KCSAN Zhongwei Zhang (1): drm/amd/display: Correct timing_adjust_pending flag setting. Zsolt Kajtar (2): fbcon: Use correct erase colour for clearing in fbcon fbdev: core: tileblit: Implement missing margin clearing for tileblit feijuan.li (1): drm/edid: fixed the bug that hdr metadata was not reset gaoxu (1): cgroup: Fix compilation issue due to cgroup_mutex not being exported junan (1): HID: usbkbd: Fix the bit shift number for LED_KANA shantiprasad shettar (1): bnxt_en: Query FW parameters when the CAPS_CHANGE bit is set zihan zhou (1): sched: Reduce the default slice to avoid tasks getting an extra tick

3 months, 3 weeks

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[PATCH -stable,5.4 0/3] Netfilter fixes for -stable

by Pablo Neira Ayuso

Hi Greg, Sasha, This batch contains a backport fix for 5.4 -stable. The following list shows the backported patches, I am using original commit IDs for reference: 1) 8965d42bcf54 ("netfilter: nf_tables: pass nft_chain to destroy function, not nft_ctx") This is a stable dependency for the next patch. 2) c03d278fdf35 ("netfilter: nf_tables: wait for rcu grace period on net_device removal") 3) b04df3da1b5c ("netfilter: nf_tables: do not defer rule destruction via call_rcu") This is a fix-for-fix for patch 2. These three patches are required to fix the netdevice release path for netdev family basechains. NOTE: -stable kernels >= 5.4 already provide these backport fixes. Please, apply, Thanks ** BLURB HERE *** Florian Westphal (2): netfilter: nf_tables: pass nft_chain to destroy function, not nft_ctx netfilter: nf_tables: do not defer rule destruction via call_rcu Pablo Neira Ayuso (1): netfilter: nf_tables: wait for rcu grace period on net_device removal net/netfilter/nf_tables_api.c | 51 ++++++++++++++++++++++++----------- 1 file changed, 36 insertions(+), 15 deletions(-) -- 2.30.2

3 months, 3 weeks

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[PATCH] leds: flash: leds-qcom-flash: Fix registry access after re-bind

by Krzysztof Kozlowski

Driver in probe() updates each of 'reg_field' with 'reg_base': for (i = 0; i < REG_MAX_COUNT; i++) regs[i].reg += reg_base; 'reg_field' array (under variable 'regs' above) is statically allocated, this each re-bind would add another 'reg_base' leading to bogus register addresses. Constify the local 'reg_field' array and duplicate it in probe to solve this. Fixes: 96a2e242a5dc ("leds: flash: Add driver to support flash LED module in QCOM PMICs") Cc: <stable(a)vger.kernel.org> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski(a)linaro.org> --- This is a nice example why constifying static memory is useful. --- drivers/leds/flash/leds-qcom-flash.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/drivers/leds/flash/leds-qcom-flash.c b/drivers/leds/flash/leds-qcom-flash.c index b4c19be51c4d..b8a48c15d797 100644 --- a/drivers/leds/flash/leds-qcom-flash.c +++ b/drivers/leds/flash/leds-qcom-flash.c @@ -117,7 +117,7 @@ enum { REG_MAX_COUNT, }; -static struct reg_field mvflash_3ch_regs[REG_MAX_COUNT] = { +static const struct reg_field mvflash_3ch_regs[REG_MAX_COUNT] = { REG_FIELD(0x08, 0, 7), /* status1 */ REG_FIELD(0x09, 0, 7), /* status2 */ REG_FIELD(0x0a, 0, 7), /* status3 */ @@ -132,7 +132,7 @@ static struct reg_field mvflash_3ch_regs[REG_MAX_COUNT] = { REG_FIELD(0x58, 0, 2), /* therm_thrsh3 */ }; -static struct reg_field mvflash_4ch_regs[REG_MAX_COUNT] = { +static const struct reg_field mvflash_4ch_regs[REG_MAX_COUNT] = { REG_FIELD(0x06, 0, 7), /* status1 */ REG_FIELD(0x07, 0, 6), /* status2 */ REG_FIELD(0x09, 0, 7), /* status3 */ @@ -854,11 +854,17 @@ static int qcom_flash_led_probe(struct platform_device *pdev) if (val == FLASH_SUBTYPE_3CH_PM8150_VAL || val == FLASH_SUBTYPE_3CH_PMI8998_VAL) { flash_data->hw_type = QCOM_MVFLASH_3CH; flash_data->max_channels = 3; - regs = mvflash_3ch_regs; + regs = devm_kmemdup(dev, mvflash_3ch_regs, sizeof(mvflash_3ch_regs), + GFP_KERNEL); + if (!regs) + return -ENOMEM; } else if (val == FLASH_SUBTYPE_4CH_VAL) { flash_data->hw_type = QCOM_MVFLASH_4CH; flash_data->max_channels = 4; - regs = mvflash_4ch_regs; + regs = devm_kmemdup(dev, mvflash_4ch_regs, sizeof(mvflash_3ch_regs), + GFP_KERNEL); + if (!regs) + return -ENOMEM; rc = regmap_read(regmap, reg_base + FLASH_REVISION_REG, &val); if (rc < 0) { @@ -880,6 +886,7 @@ static int qcom_flash_led_probe(struct platform_device *pdev) dev_err(dev, "Failed to allocate regmap field, rc=%d\n", rc); return rc; } + devm_kfree(dev, regs); /* devm_regmap_field_bulk_alloc() makes copies */ platform_set_drvdata(pdev, flash_data); mutex_init(&flash_data->lock); -- 2.45.2

3 months, 3 weeks

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[PATCH v3] drm/xe/sched: stop re-submitting signalled jobs

by Matthew Auld

Customer is reporting a really subtle issue where we get random DMAR faults, hangs and other nasties for kernel migration jobs when stressing stuff like s2idle/s3/s4. The explosions seems to happen somewhere after resuming the system with splats looking something like: PM: suspend exit rfkill: input handler disabled xe 0000:00:02.0: [drm] GT0: Engine reset: engine_class=bcs, logical_mask: 0x2, guc_id=0 xe 0000:00:02.0: [drm] GT0: Timedout job: seqno=24496, lrc_seqno=24496, guc_id=0, flags=0x13 in no process [-1] xe 0000:00:02.0: [drm] GT0: Kernel-submitted job timed out The likely cause appears to be a race between suspend cancelling the worker that processes the free_job()'s, such that we still have pending jobs to be freed after the cancel. Following from this, on resume the pending_list will now contain at least one already complete job, but it looks like we call drm_sched_resubmit_jobs(), which will then call run_job() on everything still on the pending_list. But if the job was already complete, then all the resources tied to the job, like the bb itself, any memory that is being accessed, the iommu mappings etc. might be long gone since those are usually tied to the fence signalling. This scenario can be seen in ftrace when running a slightly modified xe_pm (kernel was only modified to inject artificial latency into free_job to make the race easier to hit): xe_sched_job_run: dev=0000:00:02.0, fence=0xffff888276cc8540, seqno=0, lrc_seqno=0, gt=0, guc_id=0, batch_addr=0x000000146910 ... xe_exec_queue_stop: dev=0000:00:02.0, 3:0x2, gt=0, width=1, guc_id=0, guc_state=0x0, flags=0x13 xe_exec_queue_stop: dev=0000:00:02.0, 3:0x2, gt=0, width=1, guc_id=1, guc_state=0x0, flags=0x4 xe_exec_queue_stop: dev=0000:00:02.0, 4:0x1, gt=1, width=1, guc_id=0, guc_state=0x0, flags=0x3 xe_exec_queue_stop: dev=0000:00:02.0, 1:0x1, gt=1, width=1, guc_id=1, guc_state=0x0, flags=0x3 xe_exec_queue_stop: dev=0000:00:02.0, 4:0x1, gt=1, width=1, guc_id=2, guc_state=0x0, flags=0x3 xe_exec_queue_resubmit: dev=0000:00:02.0, 3:0x2, gt=0, width=1, guc_id=0, guc_state=0x0, flags=0x13 xe_sched_job_run: dev=0000:00:02.0, fence=0xffff888276cc8540, seqno=0, lrc_seqno=0, gt=0, guc_id=0, batch_addr=0x000000146910 ... ..... xe_exec_queue_memory_cat_error: dev=0000:00:02.0, 3:0x2, gt=0, width=1, guc_id=0, guc_state=0x3, flags=0x13 So the job_run() is clearly triggered twice for the same job, even though the first must have already signalled to completion during suspend. We can also see a CAT error after the re-submit. To prevent this try to call xe_sched_stop() to forcefully remove anything on the pending_list that has already signalled, before we re-submit. v2: - Make sure to re-arm the fence callbacks with sched_start(). v3 (Matt B): - Stop using drm_sched_resubmit_jobs(), which appears to be deprecated and just open-code a simple loop such that we skip calling run_job() and anything already signalled. Link: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/4856 Fixes: dd08ebf6c352 ("drm/xe: Introduce a new DRM driver for Intel GPUs") Signed-off-by: Matthew Auld <matthew.auld(a)intel.com> Cc: Thomas Hellström <thomas.hellstrom(a)linux.intel.com> Cc: Matthew Brost <matthew.brost(a)intel.com> Cc: William Tseng <william.tseng(a)intel.com> Cc: <stable(a)vger.kernel.org> # v6.8+ --- drivers/gpu/drm/xe/xe_gpu_scheduler.h | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/xe/xe_gpu_scheduler.h b/drivers/gpu/drm/xe/xe_gpu_scheduler.h index c250ea773491..308061f0cf37 100644 --- a/drivers/gpu/drm/xe/xe_gpu_scheduler.h +++ b/drivers/gpu/drm/xe/xe_gpu_scheduler.h @@ -51,7 +51,15 @@ static inline void xe_sched_tdr_queue_imm(struct xe_gpu_scheduler *sched) static inline void xe_sched_resubmit_jobs(struct xe_gpu_scheduler *sched) { - drm_sched_resubmit_jobs(&sched->base); + struct drm_sched_job *s_job; + + list_for_each_entry(s_job, &sched->base.pending_list, list) { + struct drm_sched_fence *s_fence = s_job->s_fence; + struct dma_fence *hw_fence = s_fence->parent; + + if (hw_fence && !dma_fence_is_signaled(hw_fence)) + sched->base.ops->run_job(s_job); + } } static inline bool -- 2.49.0

3 months, 3 weeks

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[PATCH] net: ch9200: fix uninitialised access during mii_nway_restart

by Qasim Ijaz

In mii_nway_restart() the code attempts to call mii->mdio_read which is ch9200_mdio_read(). ch9200_mdio_read() utilises a local buffer called "buff", which is initialised with control_read(). However "buff" is conditionally initialised inside control_read(): if (err == size) { memcpy(data, buf, size); } If the condition of "err == size" is not met, then "buff" remains uninitialised. Once this happens the uninitialised "buff" is accessed and returned during ch9200_mdio_read(): return (buff[0] | buff[1] << 8); The problem stems from the fact that ch9200_mdio_read() ignores the return value of control_read(), leading to uinit-access of "buff". To fix this we should check the return value of control_read() and return early on error. Reported-by: syzbot <syzbot+3361c2d6f78a3e0892f9(a)syzkaller.appspotmail.com> Closes: https://syzkaller.appspot.com/bug?extid=3361c2d6f78a3e0892f9 Tested-by: syzbot <syzbot+3361c2d6f78a3e0892f9(a)syzkaller.appspotmail.com> Fixes: 4a476bd6d1d9 ("usbnet: New driver for QinHeng CH9200 devices") Cc: stable(a)vger.kernel.org Signed-off-by: Qasim Ijaz <qasdev00(a)gmail.com> --- drivers/net/usb/ch9200.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/net/usb/ch9200.c b/drivers/net/usb/ch9200.c index f69d9b902da0..a206ffa76f1b 100644 --- a/drivers/net/usb/ch9200.c +++ b/drivers/net/usb/ch9200.c @@ -178,6 +178,7 @@ static int ch9200_mdio_read(struct net_device *netdev, int phy_id, int loc) { struct usbnet *dev = netdev_priv(netdev); unsigned char buff[2]; + int ret; netdev_dbg(netdev, "%s phy_id:%02x loc:%02x\n", __func__, phy_id, loc); @@ -185,8 +186,10 @@ static int ch9200_mdio_read(struct net_device *netdev, int phy_id, int loc) if (phy_id != 0) return -ENODEV; - control_read(dev, REQUEST_READ, 0, loc * 2, buff, 0x02, - CONTROL_TIMEOUT_MS); + ret = control_read(dev, REQUEST_READ, 0, loc * 2, buff, 0x02, + CONTROL_TIMEOUT_MS); + if (ret < 0) + return ret; return (buff[0] | buff[1] << 8); } -- 2.39.5

3 months, 3 weeks

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[PATCH] net: af_key: Add error check in set_sadb_address()

by Wentao Liang

The function set_sadb_address() calls the function pfkey_sockaddr_fill(), but does not check its return value. A proper implementation can be found in set_sadb_kmaddress(). Add an error check for set_sadb_address(), return error code if the function fails. Fixes: e5b56652c11b ("key: Share common code path to fill sockaddr{}.") Cc: stable(a)vger.kernel.org # v2.6 Signed-off-by: Wentao Liang <vulab(a)iscas.ac.cn> --- net/key/af_key.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/net/key/af_key.c b/net/key/af_key.c index c56bb4f451e6..537c9604e356 100644 --- a/net/key/af_key.c +++ b/net/key/af_key.c @@ -3474,15 +3474,17 @@ static int set_sadb_address(struct sk_buff *skb, int sasize, int type, switch (type) { case SADB_EXT_ADDRESS_SRC: addr->sadb_address_prefixlen = sel->prefixlen_s; - pfkey_sockaddr_fill(&sel->saddr, 0, - (struct sockaddr *)(addr + 1), - sel->family); + if (!pfkey_sockaddr_fill(&sel->saddr, 0, + (struct sockaddr *)(addr + 1), + sel->family)) + return -EINVAL; break; case SADB_EXT_ADDRESS_DST: addr->sadb_address_prefixlen = sel->prefixlen_d; - pfkey_sockaddr_fill(&sel->daddr, 0, - (struct sockaddr *)(addr + 1), - sel->family); + if (!pfkey_sockaddr_fill(&sel->daddr, 0, + (struct sockaddr *)(addr + 1), + sel->family)) + return -EINVAL; break; default: return -EINVAL; -- 2.42.0.windows.2

3 months, 3 weeks

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[PATCH 2/5] LoongArch: KVM: Check interrupt route from physical cpu with eiointc

by Bibo Mao

With eiointc interrupt controller, physical cpu id is set for irq route. However function kvm_get_vcpu() is used to get destination vCPU when delivering irq. With API kvm_get_vcpu(), logical cpu is used. With API kvm_get_vcpu_by_cpuid(), vCPU can be searched from physical cpu id. Cc: stable(a)vger.kernel.org Fixes: 3956a52bc05b ("LoongArch: KVM: Add EIOINTC read and write functions") Signed-off-by: Bibo Mao <maobibo(a)loongson.cn> --- arch/loongarch/kvm/intc/eiointc.c | 24 ++++++++++++++++++------ 1 file changed, 18 insertions(+), 6 deletions(-) diff --git a/arch/loongarch/kvm/intc/eiointc.c b/arch/loongarch/kvm/intc/eiointc.c index d2c521b0e923..0b648c56b0c3 100644 --- a/arch/loongarch/kvm/intc/eiointc.c +++ b/arch/loongarch/kvm/intc/eiointc.c @@ -9,7 +9,8 @@ static void eiointc_set_sw_coreisr(struct loongarch_eiointc *s) { - int ipnum, cpu, irq_index, irq_mask, irq; + int ipnum, cpu, irq_index, irq_mask, irq, cpuid; + struct kvm_vcpu *vcpu; for (irq = 0; irq < EIOINTC_IRQS; irq++) { ipnum = s->ipmap.reg_u8[irq / 32]; @@ -20,7 +21,12 @@ static void eiointc_set_sw_coreisr(struct loongarch_eiointc *s) irq_index = irq / 32; irq_mask = BIT(irq & 0x1f); - cpu = s->coremap.reg_u8[irq]; + cpuid = s->coremap.reg_u8[irq]; + vcpu = kvm_get_vcpu_by_cpuid(s->kvm, cpuid); + if (vcpu == NULL) + continue; + + cpu = vcpu->vcpu_id; if (!!(s->coreisr.reg_u32[cpu][irq_index] & irq_mask)) set_bit(irq, s->sw_coreisr[cpu][ipnum]); else @@ -68,17 +74,23 @@ static void eiointc_update_irq(struct loongarch_eiointc *s, int irq, int level) static inline void eiointc_update_sw_coremap(struct loongarch_eiointc *s, int irq, u64 val, u32 len, bool notify) { - int i, cpu; + int i, cpu, cpuid; + struct kvm_vcpu *vcpu; for (i = 0; i < len; i++) { - cpu = val & 0xff; + cpuid = val & 0xff; val = val >> 8; if (!(s->status & BIT(EIOINTC_ENABLE_CPU_ENCODE))) { - cpu = ffs(cpu) - 1; - cpu = (cpu >= 4) ? 0 : cpu; + cpuid = ffs(cpuid) - 1; + cpuid = (cpuid >= 4) ? 0 : cpuid; } + vcpu = kvm_get_vcpu_by_cpuid(s->kvm, cpuid); + if (vcpu == NULL) + continue; + + cpu = vcpu->vcpu_id; if (s->sw_coremap[irq + i] == cpu) continue; -- 2.39.3

3 months, 3 weeks

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[PATCH 1/5] LoongArch: KVM: Fix interrupt route update with eiointc

by Bibo Mao

With function eiointc_update_sw_coremap(), there is forced assignment like val = *(u64 *)pvalue. Parameter pvalue may be pointer to char type or others, there is problem with forced assignment with u64 type. Here the detailed value is passed rather address pointer. Cc: stable(a)vger.kernel.org Fixes: 3956a52bc05b ("LoongArch: KVM: Add EIOINTC read and write functions") Signed-off-by: Bibo Mao <maobibo(a)loongson.cn> --- arch/loongarch/kvm/intc/eiointc.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/arch/loongarch/kvm/intc/eiointc.c b/arch/loongarch/kvm/intc/eiointc.c index f39929d7bf8a..d2c521b0e923 100644 --- a/arch/loongarch/kvm/intc/eiointc.c +++ b/arch/loongarch/kvm/intc/eiointc.c @@ -66,10 +66,9 @@ static void eiointc_update_irq(struct loongarch_eiointc *s, int irq, int level) } static inline void eiointc_update_sw_coremap(struct loongarch_eiointc *s, - int irq, void *pvalue, u32 len, bool notify) + int irq, u64 val, u32 len, bool notify) { int i, cpu; - u64 val = *(u64 *)pvalue; for (i = 0; i < len; i++) { cpu = val & 0xff; @@ -398,7 +397,7 @@ static int loongarch_eiointc_writeb(struct kvm_vcpu *vcpu, irq = offset - EIOINTC_COREMAP_START; index = irq; s->coremap.reg_u8[index] = data; - eiointc_update_sw_coremap(s, irq, (void *)&data, sizeof(data), true); + eiointc_update_sw_coremap(s, irq, data, sizeof(data), true); break; default: ret = -EINVAL; @@ -484,7 +483,7 @@ static int loongarch_eiointc_writew(struct kvm_vcpu *vcpu, irq = offset - EIOINTC_COREMAP_START; index = irq >> 1; s->coremap.reg_u16[index] = data; - eiointc_update_sw_coremap(s, irq, (void *)&data, sizeof(data), true); + eiointc_update_sw_coremap(s, irq, data, sizeof(data), true); break; default: ret = -EINVAL; @@ -570,7 +569,7 @@ static int loongarch_eiointc_writel(struct kvm_vcpu *vcpu, irq = offset - EIOINTC_COREMAP_START; index = irq >> 2; s->coremap.reg_u32[index] = data; - eiointc_update_sw_coremap(s, irq, (void *)&data, sizeof(data), true); + eiointc_update_sw_coremap(s, irq, data, sizeof(data), true); break; default: ret = -EINVAL; @@ -656,7 +655,7 @@ static int loongarch_eiointc_writeq(struct kvm_vcpu *vcpu, irq = offset - EIOINTC_COREMAP_START; index = irq >> 3; s->coremap.reg_u64[index] = data; - eiointc_update_sw_coremap(s, irq, (void *)&data, sizeof(data), true); + eiointc_update_sw_coremap(s, irq, data, sizeof(data), true); break; default: ret = -EINVAL; @@ -809,7 +808,7 @@ static int kvm_eiointc_ctrl_access(struct kvm_device *dev, for (i = 0; i < (EIOINTC_IRQS / 4); i++) { start_irq = i * 4; eiointc_update_sw_coremap(s, start_irq, - (void *)&s->coremap.reg_u32[i], sizeof(u32), false); + s->coremap.reg_u32[i], sizeof(u32), false); } break; default: -- 2.39.3

3 months, 3 weeks

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[PATCH] net: ethernet: rtsn: Fix a null pointer dereference in rtsn_probe()

by Haoxiang Li

Add check for the return value of rcar_gen4_ptp_alloc() to prevent potential null pointer dereference. Fixes: b0d3969d2b4d ("net: ethernet: rtsn: Add support for Renesas Ethernet-TSN") Cc: stable(a)vger.kernel.org Signed-off-by: Haoxiang Li <haoxiang_li2024(a)163.com> --- drivers/net/ethernet/renesas/rtsn.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/ethernet/renesas/rtsn.c b/drivers/net/ethernet/renesas/rtsn.c index 6b3f7fca8d15..f5df3374d279 100644 --- a/drivers/net/ethernet/renesas/rtsn.c +++ b/drivers/net/ethernet/renesas/rtsn.c @@ -1260,6 +1260,10 @@ static int rtsn_probe(struct platform_device *pdev) priv->pdev = pdev; priv->ndev = ndev; priv->ptp_priv = rcar_gen4_ptp_alloc(pdev); + if (!priv->ptp_priv) { + ret = -ENOMEM; + goto error_free; + } spin_lock_init(&priv->lock); platform_set_drvdata(pdev, priv); -- 2.25.1

3 months, 3 weeks

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[alternative-merged] mm-contig_alloc-fix-alloc_contig_range-when-__gfp_comp-and-order-max_order.patch removed from -mm tree

by Andrew Morton

The quilt patch titled Subject: mm/contig_alloc: fix alloc_contig_range when __GFP_COMP and order < MAX_ORDER has been removed from the -mm tree. Its filename was mm-contig_alloc-fix-alloc_contig_range-when-__gfp_comp-and-order-max_order.patch This patch was dropped because an alternative patch was or shall be merged ------------------------------------------------------ From: Jinjiang Tu <tujinjiang(a)huawei.com> Subject: mm/contig_alloc: fix alloc_contig_range when __GFP_COMP and order < MAX_ORDER Date: Mon, 21 Apr 2025 09:36:20 +0800 When calling alloc_contig_range() with __GFP_COMP and the order of requested pfn range is pageblock_order, less than MAX_ORDER, I triggered WARNING as follows: PFN range: requested [2150105088, 2150105600), allocated [2150105088, 2150106112) WARNING: CPU: 3 PID: 580 at mm/page_alloc.c:6877 alloc_contig_range+0x280/0x340 alloc_contig_range() marks pageblocks of the requested pfn range to be isolated, migrate these pages if they are in use and will be freed to MIGRATE_ISOLATED freelist. Suppose two alloc_contig_range() calls at the same time and the requested pfn range are [0x80280000, 0x80280200) and [0x80280200, 0x80280400) respectively. Suppose the two memory range are in use, then alloc_contig_range() will migrate and free these pages to MIGRATE_ISOLATED freelist. __free_one_page() will merge MIGRATE_ISOLATE buddy to larger buddy, resulting in a MAX_ORDER buddy. Finally, find_large_buddy() in alloc_contig_range() returns a MAX_ORDER buddy and results in WARNING. To fix it, call free_contig_range() to free the excess pfn range. Link: https://lkml.kernel.org/r/20250421013620.459740-1-tujinjiang@huawei.com Fixes: e98337d11bbd ("mm/contig_alloc: support __GFP_COMP") Signed-off-by: Jinjiang Tu <tujinjiang(a)huawei.com> Reviewed-by: Zi Yan <ziy(a)nvidia.com> Cc: David Hildenbrand <david(a)redhat.com> Cc: Kefeng Wang <wangkefeng.wang(a)huawei.com> Cc: Yu Zhao <yuzhao(a)google.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- mm/page_alloc.c | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) --- a/mm/page_alloc.c~mm-contig_alloc-fix-alloc_contig_range-when-__gfp_comp-and-order-max_order +++ a/mm/page_alloc.c @@ -6693,6 +6693,7 @@ int alloc_contig_range_noprof(unsigned l .alloc_contig = true, }; INIT_LIST_HEAD(&cc.migratepages); + bool is_range_aligned; gfp_mask = current_gfp_context(gfp_mask); if (__alloc_contig_verify_gfp_mask(gfp_mask, (gfp_t *)&cc.gfp_mask)) @@ -6781,7 +6782,14 @@ int alloc_contig_range_noprof(unsigned l goto done; } - if (!(gfp_mask & __GFP_COMP)) { + /* + * With __GFP_COMP and the requested order < MAX_PAGE_ORDER, + * isolated free pages can have higher order than the requested + * one. Use split_free_pages() to free out of range pages. + */ + is_range_aligned = is_power_of_2(end - start); + if (!(gfp_mask & __GFP_COMP) || + (is_range_aligned && ilog2(end - start) < MAX_PAGE_ORDER)) { split_free_pages(cc.freepages, gfp_mask); /* Free head and tail (if any) */ @@ -6789,7 +6797,15 @@ int alloc_contig_range_noprof(unsigned l free_contig_range(outer_start, start - outer_start); if (end != outer_end) free_contig_range(end, outer_end - end); - } else if (start == outer_start && end == outer_end && is_power_of_2(end - start)) { + + outer_start = start; + outer_end = end; + + if (!(gfp_mask & __GFP_COMP)) + goto done; + } + + if (start == outer_start && end == outer_end && is_range_aligned) { struct page *head = pfn_to_page(start); int order = ilog2(end - start); _ Patches currently in -mm which might be from tujinjiang(a)huawei.com are

3 months, 3 weeks

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[for-next][PATCH 02/10] ring-buffer: Do not trigger WARN_ON() due to a commit_overrun

by Steven Rostedt

From: Steven Rostedt <rostedt(a)goodmis.org> When reading a memory mapped buffer the reader page is just swapped out with the last page written in the write buffer. If the reader page is the same as the commit buffer (the buffer that is currently being written to) it was assumed that it should never have missed events. If it does, it triggers a WARN_ON_ONCE(). But there just happens to be one scenario where this can legitimately happen. That is on a commit_overrun. A commit overrun is when an interrupt preempts an event being written to the buffer and then the interrupt adds so many new events that it fills and wraps the buffer back to the commit. Any new events would then be dropped and be reported as "missed_events". In this case, the next page to read is the commit buffer and after the swap of the reader page, the reader page will be the commit buffer, but this time there will be missed events and this triggers the following warning: ------------[ cut here ]------------ WARNING: CPU: 2 PID: 1127 at kernel/trace/ring_buffer.c:7357 ring_buffer_map_get_reader+0x49a/0x780 Modules linked in: kvm_intel kvm irqbypass CPU: 2 UID: 0 PID: 1127 Comm: trace-cmd Not tainted 6.15.0-rc7-test-00004-g478bc2824b45-dirty #564 PREEMPT Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:ring_buffer_map_get_reader+0x49a/0x780 Code: 00 00 00 48 89 fe 48 c1 ee 03 80 3c 2e 00 0f 85 ec 01 00 00 4d 3b a6 a8 00 00 00 0f 85 8a fd ff ff 48 85 c0 0f 84 55 fe ff ff <0f> 0b e9 4e fe ff ff be 08 00 00 00 4c 89 54 24 58 48 89 54 24 50 RSP: 0018:ffff888121787dc0 EFLAGS: 00010002 RAX: 00000000000006a2 RBX: ffff888100062800 RCX: ffffffff8190cb49 RDX: ffff888126934c00 RSI: 1ffff11020200a15 RDI: ffff8881010050a8 RBP: dffffc0000000000 R08: 0000000000000000 R09: ffffed1024d26982 R10: ffff888126934c17 R11: ffff8881010050a8 R12: ffff888126934c00 R13: ffff8881010050b8 R14: ffff888101005000 R15: ffff888126930008 FS: 00007f95c8cd7540(0000) GS:ffff8882b576e000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f95c8de4dc0 CR3: 0000000128452002 CR4: 0000000000172ef0 Call Trace: <TASK> ? __pfx_ring_buffer_map_get_reader+0x10/0x10 tracing_buffers_ioctl+0x283/0x370 __x64_sys_ioctl+0x134/0x190 do_syscall_64+0x79/0x1c0 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7f95c8de48db Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 00 00 RSP: 002b:00007ffe037ba110 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007ffe037bb2b0 RCX: 00007f95c8de48db RDX: 0000000000000000 RSI: 0000000000005220 RDI: 0000000000000006 RBP: 00007ffe037ba180 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe037bb6f8 R14: 00007f95c9065000 R15: 00005575c7492c90 </TASK> irq event stamp: 5080 hardirqs last enabled at (5079): [<ffffffff83e0adb0>] _raw_spin_unlock_irqrestore+0x50/0x70 hardirqs last disabled at (5080): [<ffffffff83e0aa83>] _raw_spin_lock_irqsave+0x63/0x70 softirqs last enabled at (4182): [<ffffffff81516122>] handle_softirqs+0x552/0x710 softirqs last disabled at (4159): [<ffffffff815163f7>] __irq_exit_rcu+0x107/0x210 ---[ end trace 0000000000000000 ]--- The above was triggered by running on a kernel with both lockdep and KASAN as well as kmemleak enabled and executing the following command: # perf record -o perf-test.dat -a -- trace-cmd record --nosplice -e all -p function hackbench 50 With perf interjecting a lot of interrupts and trace-cmd enabling all events as well as function tracing, with lockdep, KASAN and kmemleak enabled, it could cause an interrupt preempting an event being written to add enough events to wrap the buffer. trace-cmd was modified to have --nosplice use mmap instead of reading the buffer. The way to differentiate this case from the normal case of there only being one page written to where the swap of the reader page received that one page (which is the commit page), check if the tail page is on the reader page. The difference between the commit page and the tail page is that the tail page is where new writes go to, and the commit page holds the first write that hasn't been committed yet. In the case of an interrupt preempting the write of an event and filling the buffer, it would move the tail page but not the commit page. Have the warning only trigger if the tail page is also on the reader page, and also print out the number of events dropped by a commit overrun as that can not yet be safely added to the page so that the reader can see there were events dropped. Cc: stable(a)vger.kernel.org Cc: Masami Hiramatsu <mhiramat(a)kernel.org> Cc: Mathieu Desnoyers <mathieu.desnoyers(a)efficios.com> Cc: Vincent Donnefort <vdonnefort(a)google.com> Link: https://lore.kernel.org/20250528121555.2066527e@gandalf.local.home Fixes: fe832be05a8ee ("ring-buffer: Have mmapped ring buffer keep track of missed events") Signed-off-by: Steven Rostedt (Google) <rostedt(a)goodmis.org> --- kernel/trace/ring_buffer.c | 26 ++++++++++++++++++-------- 1 file changed, 18 insertions(+), 8 deletions(-) diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index ca1a8e706004..683aa57870fe 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -7285,8 +7285,8 @@ int ring_buffer_map_get_reader(struct trace_buffer *buffer, int cpu) /* Check if any events were dropped */ missed_events = cpu_buffer->lost_events; - if (cpu_buffer->reader_page != cpu_buffer->commit_page) { - if (missed_events) { + if (missed_events) { + if (cpu_buffer->reader_page != cpu_buffer->commit_page) { struct buffer_data_page *bpage = reader->page; unsigned int commit; /* @@ -7307,13 +7307,23 @@ int ring_buffer_map_get_reader(struct trace_buffer *buffer, int cpu) local_add(RB_MISSED_STORED, &bpage->commit); } local_add(RB_MISSED_EVENTS, &bpage->commit); + } else if (!WARN_ONCE(cpu_buffer->reader_page == cpu_buffer->tail_page, + "Reader on commit with %ld missed events", + missed_events)) { + /* + * There shouldn't be any missed events if the tail_page + * is on the reader page. But if the tail page is not on the + * reader page and the commit_page is, that would mean that + * there's a commit_overrun (an interrupt preempted an + * addition of an event and then filled the buffer + * with new events). In this case it's not an + * error, but it should still be reported. + * + * TODO: Add missed events to the page for user space to know. + */ + pr_info("Ring buffer [%d] commit overrun lost %ld events at timestamp:%lld\n", + cpu, missed_events, cpu_buffer->reader_page->page->time_stamp); } - } else { - /* - * There really shouldn't be any missed events if the commit - * is on the reader page. - */ - WARN_ON_ONCE(missed_events); } cpu_buffer->lost_events = 0; -- 2.47.2

3 months, 3 weeks

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[for-next][PATCH 01/10] ring-buffer: Move cpus_read_lock() outside of buffer->mutex

by Steven Rostedt

From: Steven Rostedt <rostedt(a)goodmis.org> Running a modified trace-cmd record --nosplice where it does a mmap of the ring buffer when '--nosplice' is set, caused the following lockdep splat: ====================================================== WARNING: possible circular locking dependency detected 6.15.0-rc7-test-00002-gfb7d03d8a82f #551 Not tainted ------------------------------------------------------ trace-cmd/1113 is trying to acquire lock: ffff888100062888 (&buffer->mutex){+.+.}-{4:4}, at: ring_buffer_map+0x11c/0xe70 but task is already holding lock: ffff888100a5f9f8 (&cpu_buffer->mapping_lock){+.+.}-{4:4}, at: ring_buffer_map+0xcf/0xe70 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #5 (&cpu_buffer->mapping_lock){+.+.}-{4:4}: __mutex_lock+0x192/0x18c0 ring_buffer_map+0xcf/0xe70 tracing_buffers_mmap+0x1c4/0x3b0 __mmap_region+0xd8d/0x1f70 do_mmap+0x9d7/0x1010 vm_mmap_pgoff+0x20b/0x390 ksys_mmap_pgoff+0x2e9/0x440 do_syscall_64+0x79/0x1c0 entry_SYSCALL_64_after_hwframe+0x76/0x7e -> #4 (&mm->mmap_lock){++++}-{4:4}: __might_fault+0xa5/0x110 _copy_to_user+0x22/0x80 _perf_ioctl+0x61b/0x1b70 perf_ioctl+0x62/0x90 __x64_sys_ioctl+0x134/0x190 do_syscall_64+0x79/0x1c0 entry_SYSCALL_64_after_hwframe+0x76/0x7e -> #3 (&cpuctx_mutex){+.+.}-{4:4}: __mutex_lock+0x192/0x18c0 perf_event_init_cpu+0x325/0x7c0 perf_event_init+0x52a/0x5b0 start_kernel+0x263/0x3e0 x86_64_start_reservations+0x24/0x30 x86_64_start_kernel+0x95/0xa0 common_startup_64+0x13e/0x141 -> #2 (pmus_lock){+.+.}-{4:4}: __mutex_lock+0x192/0x18c0 perf_event_init_cpu+0xb7/0x7c0 cpuhp_invoke_callback+0x2c0/0x1030 __cpuhp_invoke_callback_range+0xbf/0x1f0 _cpu_up+0x2e7/0x690 cpu_up+0x117/0x170 cpuhp_bringup_mask+0xd5/0x120 bringup_nonboot_cpus+0x13d/0x170 smp_init+0x2b/0xf0 kernel_init_freeable+0x441/0x6d0 kernel_init+0x1e/0x160 ret_from_fork+0x34/0x70 ret_from_fork_asm+0x1a/0x30 -> #1 (cpu_hotplug_lock){++++}-{0:0}: cpus_read_lock+0x2a/0xd0 ring_buffer_resize+0x610/0x14e0 __tracing_resize_ring_buffer.part.0+0x42/0x120 tracing_set_tracer+0x7bd/0xa80 tracing_set_trace_write+0x132/0x1e0 vfs_write+0x21c/0xe80 ksys_write+0xf9/0x1c0 do_syscall_64+0x79/0x1c0 entry_SYSCALL_64_after_hwframe+0x76/0x7e -> #0 (&buffer->mutex){+.+.}-{4:4}: __lock_acquire+0x1405/0x2210 lock_acquire+0x174/0x310 __mutex_lock+0x192/0x18c0 ring_buffer_map+0x11c/0xe70 tracing_buffers_mmap+0x1c4/0x3b0 __mmap_region+0xd8d/0x1f70 do_mmap+0x9d7/0x1010 vm_mmap_pgoff+0x20b/0x390 ksys_mmap_pgoff+0x2e9/0x440 do_syscall_64+0x79/0x1c0 entry_SYSCALL_64_after_hwframe+0x76/0x7e other info that might help us debug this: Chain exists of: &buffer->mutex --> &mm->mmap_lock --> &cpu_buffer->mapping_lock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&cpu_buffer->mapping_lock); lock(&mm->mmap_lock); lock(&cpu_buffer->mapping_lock); lock(&buffer->mutex); *** DEADLOCK *** 2 locks held by trace-cmd/1113: #0: ffff888106b847e0 (&mm->mmap_lock){++++}-{4:4}, at: vm_mmap_pgoff+0x192/0x390 #1: ffff888100a5f9f8 (&cpu_buffer->mapping_lock){+.+.}-{4:4}, at: ring_buffer_map+0xcf/0xe70 stack backtrace: CPU: 5 UID: 0 PID: 1113 Comm: trace-cmd Not tainted 6.15.0-rc7-test-00002-gfb7d03d8a82f #551 PREEMPT Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0x6e/0xa0 print_circular_bug.cold+0x178/0x1be check_noncircular+0x146/0x160 __lock_acquire+0x1405/0x2210 lock_acquire+0x174/0x310 ? ring_buffer_map+0x11c/0xe70 ? ring_buffer_map+0x11c/0xe70 ? __mutex_lock+0x169/0x18c0 __mutex_lock+0x192/0x18c0 ? ring_buffer_map+0x11c/0xe70 ? ring_buffer_map+0x11c/0xe70 ? function_trace_call+0x296/0x370 ? __pfx___mutex_lock+0x10/0x10 ? __pfx_function_trace_call+0x10/0x10 ? __pfx___mutex_lock+0x10/0x10 ? _raw_spin_unlock+0x2d/0x50 ? ring_buffer_map+0x11c/0xe70 ? ring_buffer_map+0x11c/0xe70 ? __mutex_lock+0x5/0x18c0 ring_buffer_map+0x11c/0xe70 ? do_raw_spin_lock+0x12d/0x270 ? find_held_lock+0x2b/0x80 ? _raw_spin_unlock+0x2d/0x50 ? rcu_is_watching+0x15/0xb0 ? _raw_spin_unlock+0x2d/0x50 ? trace_preempt_on+0xd0/0x110 tracing_buffers_mmap+0x1c4/0x3b0 __mmap_region+0xd8d/0x1f70 ? ring_buffer_lock_reserve+0x99/0xff0 ? __pfx___mmap_region+0x10/0x10 ? ring_buffer_lock_reserve+0x99/0xff0 ? __pfx_ring_buffer_lock_reserve+0x10/0x10 ? __pfx_ring_buffer_lock_reserve+0x10/0x10 ? bpf_lsm_mmap_addr+0x4/0x10 ? security_mmap_addr+0x46/0xd0 ? lock_is_held_type+0xd9/0x130 do_mmap+0x9d7/0x1010 ? 0xffffffffc0370095 ? __pfx_do_mmap+0x10/0x10 vm_mmap_pgoff+0x20b/0x390 ? __pfx_vm_mmap_pgoff+0x10/0x10 ? 0xffffffffc0370095 ksys_mmap_pgoff+0x2e9/0x440 do_syscall_64+0x79/0x1c0 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7fb0963a7de2 Code: 00 00 00 0f 1f 44 00 00 41 f7 c1 ff 0f 00 00 75 27 55 89 cd 53 48 89 fb 48 85 ff 74 3b 41 89 ea 48 89 df b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 76 5b 5d c3 0f 1f 00 48 8b 05 e1 9f 0d 00 64 RSP: 002b:00007ffdcc8fb878 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb0963a7de2 RDX: 0000000000000001 RSI: 0000000000001000 RDI: 0000000000000000 RBP: 0000000000000001 R08: 0000000000000006 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdcc8fbe68 R14: 00007fb096628000 R15: 00005633e01a5c90 </TASK> The issue is that cpus_read_lock() is taken within buffer->mutex. The memory mapped pages are taken with the mmap_lock held. The buffer->mutex is taken within the cpu_buffer->mapping_lock. There's quite a chain with all these locks, where the deadlock can be fixed by moving the cpus_read_lock() outside the taking of the buffer->mutex. Cc: stable(a)vger.kernel.org Cc: Masami Hiramatsu <mhiramat(a)kernel.org> Cc: Mathieu Desnoyers <mathieu.desnoyers(a)efficios.com> Cc: Vincent Donnefort <vdonnefort(a)google.com> Link: https://lore.kernel.org/20250527105820.0f45d045@gandalf.local.home Fixes: 117c39200d9d7 ("ring-buffer: Introducing ring-buffer mapping functions") Signed-off-by: Steven Rostedt (Google) <rostedt(a)goodmis.org> --- kernel/trace/ring_buffer.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index 3f9bf562beea..ca1a8e706004 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -2849,6 +2849,12 @@ int ring_buffer_resize(struct trace_buffer *buffer, unsigned long size, if (nr_pages < 2) nr_pages = 2; + /* + * Keep CPUs from coming online while resizing to synchronize + * with new per CPU buffers being created. + */ + guard(cpus_read_lock)(); + /* prevent another thread from changing buffer sizes */ mutex_lock(&buffer->mutex); atomic_inc(&buffer->resizing); @@ -2893,7 +2899,6 @@ int ring_buffer_resize(struct trace_buffer *buffer, unsigned long size, cond_resched(); } - cpus_read_lock(); /* * Fire off all the required work handlers * We can't schedule on offline CPUs, but it's not necessary @@ -2933,7 +2938,6 @@ int ring_buffer_resize(struct trace_buffer *buffer, unsigned long size, cpu_buffer->nr_pages_to_update = 0; } - cpus_read_unlock(); } else { cpu_buffer = buffer->buffers[cpu_id]; @@ -2961,8 +2965,6 @@ int ring_buffer_resize(struct trace_buffer *buffer, unsigned long size, goto out_err; } - cpus_read_lock(); - /* Can't run something on an offline CPU. */ if (!cpu_online(cpu_id)) rb_update_pages(cpu_buffer); @@ -2981,7 +2983,6 @@ int ring_buffer_resize(struct trace_buffer *buffer, unsigned long size, } cpu_buffer->nr_pages_to_update = 0; - cpus_read_unlock(); } out: -- 2.47.2

3 months, 3 weeks

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[PATCH AUTOSEL 5.4] fs/filesystems: Fix potential unsigned integer underflow in fs_name()

by Sasha Levin

From: Zijun Hu <quic_zijuhu(a)quicinc.com> [ Upstream commit 1363c134ade81e425873b410566e957fecebb261 ] fs_name() has @index as unsigned int, so there is underflow risk for operation '@index--'. Fix by breaking the for loop when '@index == 0' which is also more proper than '@index <= 0' for unsigned integer comparison. Signed-off-by: Zijun Hu <quic_zijuhu(a)quicinc.com> Link: https://lore.kernel.org/20250410-fix_fs-v1-1-7c14ccc8ebaa@quicinc.com Signed-off-by: Christian Brauner <brauner(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- **YES** This commit should be backported to stable kernel trees. **Detailed Analysis:** **The Bug:** The `fs_name()` function at `fs/filesystems.c:156-174` has a critical unsigned integer underflow vulnerability. When the function receives `index=0` as a parameter, the loop `for (tmp = file_systems; tmp; tmp = tmp->next, index--)` decrements `index` from 0 to `UINT_MAX` (4294967295 on 32-bit systems), causing the condition `if (index <= 0 && try_module_get(tmp->owner))` to evaluate incorrectly. **The Fix:** The commit changes the logic from: - Old: `if (index <= 0 && try_module_get(tmp->owner))` - New: `if (index == 0) { if (try_module_get(tmp->owner)) res = 0; break; }` This prevents the unsigned integer from wrapping around and provides proper bounds checking. **Impact and Severity:** 1. **User-accessible vulnerability**: The `fs_name()` function is called through the `sysfs` system call (syscall #139) with option 2, making it directly accessible to userspace applications. 2. **Potential for exploitation**: An attacker could call `sysfs(2, 0, buffer)` to trigger the underflow, potentially causing: - Infinite loops in the filesystem list traversal - Unintended module reference acquisition - System instability or denial of service 3. **Core filesystem subsystem**: This affects the fundamental filesystem registration mechanism in the kernel. **Comparison with Similar Commits:** This follows the same pattern as the **accepted backport examples**: - **Similar to Commit #1 (ntfs3)**: Both fix integer overflow/underflow issues that could cause system instability - **Similar to Commit #3 (f2fs)**: Both prevent integer arithmetic issues in filesystem code - **Similar to Commit #5 (f2fs)**: Both add bounds checking to prevent corruption **Stable Tree Criteria:** ✅ **Fixes important bug**: Prevents potential system instability and undefined behavior ✅ **Small and contained**: Minimal code change, only affects one function ✅ **Clear side effects**: No architectural changes, just safer bounds checking ✅ **Low regression risk**: The fix makes the function more robust without changing expected behavior ✅ **Critical subsystem**: Filesystem management is fundamental to kernel operation **Conclusion:** This is a textbook example of a commit suitable for stable backporting: it fixes a clear bug with security implications in core kernel infrastructure, uses a minimal and safe approach, and has no risk of introducing regressions. The unsigned integer underflow could lead to system instability when triggered through the accessible `sysfs` syscall. fs/filesystems.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/fs/filesystems.c b/fs/filesystems.c index 5e1a190133738..148073e372acd 100644 --- a/fs/filesystems.c +++ b/fs/filesystems.c @@ -155,15 +155,19 @@ static int fs_index(const char __user * __name) static int fs_name(unsigned int index, char __user * buf) { struct file_system_type * tmp; - int len, res; + int len, res = -EINVAL; read_lock(&file_systems_lock); - for (tmp = file_systems; tmp; tmp = tmp->next, index--) - if (index <= 0 && try_module_get(tmp->owner)) + for (tmp = file_systems; tmp; tmp = tmp->next, index--) { + if (index == 0) { + if (try_module_get(tmp->owner)) + res = 0; break; + } + } read_unlock(&file_systems_lock); - if (!tmp) - return -EINVAL; + if (res) + return res; /* OK, we got the reference, so we can safely block */ len = strlen(tmp->name) + 1; -- 2.39.5

3 months, 3 weeks

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[PATCH AUTOSEL 5.10] fs/filesystems: Fix potential unsigned integer underflow in fs_name()

by Sasha Levin

From: Zijun Hu <quic_zijuhu(a)quicinc.com> [ Upstream commit 1363c134ade81e425873b410566e957fecebb261 ] fs_name() has @index as unsigned int, so there is underflow risk for operation '@index--'. Fix by breaking the for loop when '@index == 0' which is also more proper than '@index <= 0' for unsigned integer comparison. Signed-off-by: Zijun Hu <quic_zijuhu(a)quicinc.com> Link: https://lore.kernel.org/20250410-fix_fs-v1-1-7c14ccc8ebaa@quicinc.com Signed-off-by: Christian Brauner <brauner(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- **YES** This commit should be backported to stable kernel trees. **Detailed Analysis:** **The Bug:** The `fs_name()` function at `fs/filesystems.c:156-174` has a critical unsigned integer underflow vulnerability. When the function receives `index=0` as a parameter, the loop `for (tmp = file_systems; tmp; tmp = tmp->next, index--)` decrements `index` from 0 to `UINT_MAX` (4294967295 on 32-bit systems), causing the condition `if (index <= 0 && try_module_get(tmp->owner))` to evaluate incorrectly. **The Fix:** The commit changes the logic from: - Old: `if (index <= 0 && try_module_get(tmp->owner))` - New: `if (index == 0) { if (try_module_get(tmp->owner)) res = 0; break; }` This prevents the unsigned integer from wrapping around and provides proper bounds checking. **Impact and Severity:** 1. **User-accessible vulnerability**: The `fs_name()` function is called through the `sysfs` system call (syscall #139) with option 2, making it directly accessible to userspace applications. 2. **Potential for exploitation**: An attacker could call `sysfs(2, 0, buffer)` to trigger the underflow, potentially causing: - Infinite loops in the filesystem list traversal - Unintended module reference acquisition - System instability or denial of service 3. **Core filesystem subsystem**: This affects the fundamental filesystem registration mechanism in the kernel. **Comparison with Similar Commits:** This follows the same pattern as the **accepted backport examples**: - **Similar to Commit #1 (ntfs3)**: Both fix integer overflow/underflow issues that could cause system instability - **Similar to Commit #3 (f2fs)**: Both prevent integer arithmetic issues in filesystem code - **Similar to Commit #5 (f2fs)**: Both add bounds checking to prevent corruption **Stable Tree Criteria:** ✅ **Fixes important bug**: Prevents potential system instability and undefined behavior ✅ **Small and contained**: Minimal code change, only affects one function ✅ **Clear side effects**: No architectural changes, just safer bounds checking ✅ **Low regression risk**: The fix makes the function more robust without changing expected behavior ✅ **Critical subsystem**: Filesystem management is fundamental to kernel operation **Conclusion:** This is a textbook example of a commit suitable for stable backporting: it fixes a clear bug with security implications in core kernel infrastructure, uses a minimal and safe approach, and has no risk of introducing regressions. The unsigned integer underflow could lead to system instability when triggered through the accessible `sysfs` syscall. fs/filesystems.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/fs/filesystems.c b/fs/filesystems.c index 90b8d879fbaf3..1ab8eb5edf28e 100644 --- a/fs/filesystems.c +++ b/fs/filesystems.c @@ -156,15 +156,19 @@ static int fs_index(const char __user * __name) static int fs_name(unsigned int index, char __user * buf) { struct file_system_type * tmp; - int len, res; + int len, res = -EINVAL; read_lock(&file_systems_lock); - for (tmp = file_systems; tmp; tmp = tmp->next, index--) - if (index <= 0 && try_module_get(tmp->owner)) + for (tmp = file_systems; tmp; tmp = tmp->next, index--) { + if (index == 0) { + if (try_module_get(tmp->owner)) + res = 0; break; + } + } read_unlock(&file_systems_lock); - if (!tmp) - return -EINVAL; + if (res) + return res; /* OK, we got the reference, so we can safely block */ len = strlen(tmp->name) + 1; -- 2.39.5

3 months, 3 weeks

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[PATCH AUTOSEL 5.15 1/3] fs/filesystems: Fix potential unsigned integer underflow in fs_name()

by Sasha Levin

From: Zijun Hu <quic_zijuhu(a)quicinc.com> [ Upstream commit 1363c134ade81e425873b410566e957fecebb261 ] fs_name() has @index as unsigned int, so there is underflow risk for operation '@index--'. Fix by breaking the for loop when '@index == 0' which is also more proper than '@index <= 0' for unsigned integer comparison. Signed-off-by: Zijun Hu <quic_zijuhu(a)quicinc.com> Link: https://lore.kernel.org/20250410-fix_fs-v1-1-7c14ccc8ebaa@quicinc.com Signed-off-by: Christian Brauner <brauner(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- **YES** This commit should be backported to stable kernel trees. **Detailed Analysis:** **The Bug:** The `fs_name()` function at `fs/filesystems.c:156-174` has a critical unsigned integer underflow vulnerability. When the function receives `index=0` as a parameter, the loop `for (tmp = file_systems; tmp; tmp = tmp->next, index--)` decrements `index` from 0 to `UINT_MAX` (4294967295 on 32-bit systems), causing the condition `if (index <= 0 && try_module_get(tmp->owner))` to evaluate incorrectly. **The Fix:** The commit changes the logic from: - Old: `if (index <= 0 && try_module_get(tmp->owner))` - New: `if (index == 0) { if (try_module_get(tmp->owner)) res = 0; break; }` This prevents the unsigned integer from wrapping around and provides proper bounds checking. **Impact and Severity:** 1. **User-accessible vulnerability**: The `fs_name()` function is called through the `sysfs` system call (syscall #139) with option 2, making it directly accessible to userspace applications. 2. **Potential for exploitation**: An attacker could call `sysfs(2, 0, buffer)` to trigger the underflow, potentially causing: - Infinite loops in the filesystem list traversal - Unintended module reference acquisition - System instability or denial of service 3. **Core filesystem subsystem**: This affects the fundamental filesystem registration mechanism in the kernel. **Comparison with Similar Commits:** This follows the same pattern as the **accepted backport examples**: - **Similar to Commit #1 (ntfs3)**: Both fix integer overflow/underflow issues that could cause system instability - **Similar to Commit #3 (f2fs)**: Both prevent integer arithmetic issues in filesystem code - **Similar to Commit #5 (f2fs)**: Both add bounds checking to prevent corruption **Stable Tree Criteria:** ✅ **Fixes important bug**: Prevents potential system instability and undefined behavior ✅ **Small and contained**: Minimal code change, only affects one function ✅ **Clear side effects**: No architectural changes, just safer bounds checking ✅ **Low regression risk**: The fix makes the function more robust without changing expected behavior ✅ **Critical subsystem**: Filesystem management is fundamental to kernel operation **Conclusion:** This is a textbook example of a commit suitable for stable backporting: it fixes a clear bug with security implications in core kernel infrastructure, uses a minimal and safe approach, and has no risk of introducing regressions. The unsigned integer underflow could lead to system instability when triggered through the accessible `sysfs` syscall. fs/filesystems.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/fs/filesystems.c b/fs/filesystems.c index 58b9067b2391c..95e5256821a53 100644 --- a/fs/filesystems.c +++ b/fs/filesystems.c @@ -156,15 +156,19 @@ static int fs_index(const char __user * __name) static int fs_name(unsigned int index, char __user * buf) { struct file_system_type * tmp; - int len, res; + int len, res = -EINVAL; read_lock(&file_systems_lock); - for (tmp = file_systems; tmp; tmp = tmp->next, index--) - if (index <= 0 && try_module_get(tmp->owner)) + for (tmp = file_systems; tmp; tmp = tmp->next, index--) { + if (index == 0) { + if (try_module_get(tmp->owner)) + res = 0; break; + } + } read_unlock(&file_systems_lock); - if (!tmp) - return -EINVAL; + if (res) + return res; /* OK, we got the reference, so we can safely block */ len = strlen(tmp->name) + 1; -- 2.39.5

3 months, 3 weeks

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[PATCH AUTOSEL 6.1 1/3] fs/filesystems: Fix potential unsigned integer underflow in fs_name()

by Sasha Levin

From: Zijun Hu <quic_zijuhu(a)quicinc.com> [ Upstream commit 1363c134ade81e425873b410566e957fecebb261 ] fs_name() has @index as unsigned int, so there is underflow risk for operation '@index--'. Fix by breaking the for loop when '@index == 0' which is also more proper than '@index <= 0' for unsigned integer comparison. Signed-off-by: Zijun Hu <quic_zijuhu(a)quicinc.com> Link: https://lore.kernel.org/20250410-fix_fs-v1-1-7c14ccc8ebaa@quicinc.com Signed-off-by: Christian Brauner <brauner(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- **YES** This commit should be backported to stable kernel trees. **Detailed Analysis:** **The Bug:** The `fs_name()` function at `fs/filesystems.c:156-174` has a critical unsigned integer underflow vulnerability. When the function receives `index=0` as a parameter, the loop `for (tmp = file_systems; tmp; tmp = tmp->next, index--)` decrements `index` from 0 to `UINT_MAX` (4294967295 on 32-bit systems), causing the condition `if (index <= 0 && try_module_get(tmp->owner))` to evaluate incorrectly. **The Fix:** The commit changes the logic from: - Old: `if (index <= 0 && try_module_get(tmp->owner))` - New: `if (index == 0) { if (try_module_get(tmp->owner)) res = 0; break; }` This prevents the unsigned integer from wrapping around and provides proper bounds checking. **Impact and Severity:** 1. **User-accessible vulnerability**: The `fs_name()` function is called through the `sysfs` system call (syscall #139) with option 2, making it directly accessible to userspace applications. 2. **Potential for exploitation**: An attacker could call `sysfs(2, 0, buffer)` to trigger the underflow, potentially causing: - Infinite loops in the filesystem list traversal - Unintended module reference acquisition - System instability or denial of service 3. **Core filesystem subsystem**: This affects the fundamental filesystem registration mechanism in the kernel. **Comparison with Similar Commits:** This follows the same pattern as the **accepted backport examples**: - **Similar to Commit #1 (ntfs3)**: Both fix integer overflow/underflow issues that could cause system instability - **Similar to Commit #3 (f2fs)**: Both prevent integer arithmetic issues in filesystem code - **Similar to Commit #5 (f2fs)**: Both add bounds checking to prevent corruption **Stable Tree Criteria:** ✅ **Fixes important bug**: Prevents potential system instability and undefined behavior ✅ **Small and contained**: Minimal code change, only affects one function ✅ **Clear side effects**: No architectural changes, just safer bounds checking ✅ **Low regression risk**: The fix makes the function more robust without changing expected behavior ✅ **Critical subsystem**: Filesystem management is fundamental to kernel operation **Conclusion:** This is a textbook example of a commit suitable for stable backporting: it fixes a clear bug with security implications in core kernel infrastructure, uses a minimal and safe approach, and has no risk of introducing regressions. The unsigned integer underflow could lead to system instability when triggered through the accessible `sysfs` syscall. fs/filesystems.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/fs/filesystems.c b/fs/filesystems.c index 58b9067b2391c..95e5256821a53 100644 --- a/fs/filesystems.c +++ b/fs/filesystems.c @@ -156,15 +156,19 @@ static int fs_index(const char __user * __name) static int fs_name(unsigned int index, char __user * buf) { struct file_system_type * tmp; - int len, res; + int len, res = -EINVAL; read_lock(&file_systems_lock); - for (tmp = file_systems; tmp; tmp = tmp->next, index--) - if (index <= 0 && try_module_get(tmp->owner)) + for (tmp = file_systems; tmp; tmp = tmp->next, index--) { + if (index == 0) { + if (try_module_get(tmp->owner)) + res = 0; break; + } + } read_unlock(&file_systems_lock); - if (!tmp) - return -EINVAL; + if (res) + return res; /* OK, we got the reference, so we can safely block */ len = strlen(tmp->name) + 1; -- 2.39.5

3 months, 3 weeks

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[PATCH AUTOSEL 6.6 1/3] fs/filesystems: Fix potential unsigned integer underflow in fs_name()

by Sasha Levin

From: Zijun Hu <quic_zijuhu(a)quicinc.com> [ Upstream commit 1363c134ade81e425873b410566e957fecebb261 ] fs_name() has @index as unsigned int, so there is underflow risk for operation '@index--'. Fix by breaking the for loop when '@index == 0' which is also more proper than '@index <= 0' for unsigned integer comparison. Signed-off-by: Zijun Hu <quic_zijuhu(a)quicinc.com> Link: https://lore.kernel.org/20250410-fix_fs-v1-1-7c14ccc8ebaa@quicinc.com Signed-off-by: Christian Brauner <brauner(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- **YES** This commit should be backported to stable kernel trees. **Detailed Analysis:** **The Bug:** The `fs_name()` function at `fs/filesystems.c:156-174` has a critical unsigned integer underflow vulnerability. When the function receives `index=0` as a parameter, the loop `for (tmp = file_systems; tmp; tmp = tmp->next, index--)` decrements `index` from 0 to `UINT_MAX` (4294967295 on 32-bit systems), causing the condition `if (index <= 0 && try_module_get(tmp->owner))` to evaluate incorrectly. **The Fix:** The commit changes the logic from: - Old: `if (index <= 0 && try_module_get(tmp->owner))` - New: `if (index == 0) { if (try_module_get(tmp->owner)) res = 0; break; }` This prevents the unsigned integer from wrapping around and provides proper bounds checking. **Impact and Severity:** 1. **User-accessible vulnerability**: The `fs_name()` function is called through the `sysfs` system call (syscall #139) with option 2, making it directly accessible to userspace applications. 2. **Potential for exploitation**: An attacker could call `sysfs(2, 0, buffer)` to trigger the underflow, potentially causing: - Infinite loops in the filesystem list traversal - Unintended module reference acquisition - System instability or denial of service 3. **Core filesystem subsystem**: This affects the fundamental filesystem registration mechanism in the kernel. **Comparison with Similar Commits:** This follows the same pattern as the **accepted backport examples**: - **Similar to Commit #1 (ntfs3)**: Both fix integer overflow/underflow issues that could cause system instability - **Similar to Commit #3 (f2fs)**: Both prevent integer arithmetic issues in filesystem code - **Similar to Commit #5 (f2fs)**: Both add bounds checking to prevent corruption **Stable Tree Criteria:** ✅ **Fixes important bug**: Prevents potential system instability and undefined behavior ✅ **Small and contained**: Minimal code change, only affects one function ✅ **Clear side effects**: No architectural changes, just safer bounds checking ✅ **Low regression risk**: The fix makes the function more robust without changing expected behavior ✅ **Critical subsystem**: Filesystem management is fundamental to kernel operation **Conclusion:** This is a textbook example of a commit suitable for stable backporting: it fixes a clear bug with security implications in core kernel infrastructure, uses a minimal and safe approach, and has no risk of introducing regressions. The unsigned integer underflow could lead to system instability when triggered through the accessible `sysfs` syscall. fs/filesystems.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/fs/filesystems.c b/fs/filesystems.c index 58b9067b2391c..95e5256821a53 100644 --- a/fs/filesystems.c +++ b/fs/filesystems.c @@ -156,15 +156,19 @@ static int fs_index(const char __user * __name) static int fs_name(unsigned int index, char __user * buf) { struct file_system_type * tmp; - int len, res; + int len, res = -EINVAL; read_lock(&file_systems_lock); - for (tmp = file_systems; tmp; tmp = tmp->next, index--) - if (index <= 0 && try_module_get(tmp->owner)) + for (tmp = file_systems; tmp; tmp = tmp->next, index--) { + if (index == 0) { + if (try_module_get(tmp->owner)) + res = 0; break; + } + } read_unlock(&file_systems_lock); - if (!tmp) - return -EINVAL; + if (res) + return res; /* OK, we got the reference, so we can safely block */ len = strlen(tmp->name) + 1; -- 2.39.5

3 months, 3 weeks

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[PATCH AUTOSEL 6.12 1/7] btrfs: exit after state insertion failure at btrfs_convert_extent_bit()

by Sasha Levin

From: Filipe Manana <fdmanana(a)suse.com> [ Upstream commit 3bf179e36da917c5d9bec71c714573ed1649b7c1 ] If insert_state() state failed it returns an error pointer and we call extent_io_tree_panic() which will trigger a BUG() call. However if CONFIG_BUG is disabled, which is an uncommon and exotic scenario, then we fallthrough and call cache_state() which will dereference the error pointer, resulting in an invalid memory access. So jump to the 'out' label after calling extent_io_tree_panic(), it also makes the code more clear besides dealing with the exotic scenario where CONFIG_BUG is disabled. Signed-off-by: Filipe Manana <fdmanana(a)suse.com> Reviewed-by: David Sterba <dsterba(a)suse.com> Signed-off-by: David Sterba <dsterba(a)suse.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- **YES** This commit should be backported to stable kernel trees. **Detailed Analysis:** **1. Bug Description and Impact:** The commit fixes a serious potential memory corruption bug in the btrfs filesystem. When `insert_state()` fails in `btrfs_convert_extent_bit()`, it returns an error pointer (ERR_PTR). The current code calls `extent_io_tree_panic()` which triggers `BUG()`, but if `CONFIG_BUG` is disabled, the code continues executing and calls `cache_state(inserted_state, cached_state)` with the error pointer, causing invalid memory access. **2. Code Changes Analysis:** The fix is minimal and surgical - just adding a single `goto out;` statement after the `extent_io_tree_panic()` call: ```c if (IS_ERR(inserted_state)) { ret = PTR_ERR(inserted_state); extent_io_tree_panic(tree, prealloc, "insert", ret); + goto out; // <-- The fix } ``` This ensures that when `CONFIG_BUG` is disabled, execution jumps to the cleanup code instead of continuing with an invalid pointer. **3. Comparison with Similar Commits:** This commit aligns with the pattern seen in "Similar Commit #2" (Status: YES), which also: - Removes reliance on `BUG_ON()` behavior - Provides graceful error handling - Has minimal risk - Fixes a potential crash/corruption scenario Similar to commit #3 and #5 (both Status: NO), this touches BUG() handling, but unlike those commits which make broader architectural changes to error handling patterns, this fix is much more contained. **4. Stable Tree Criteria Assessment:** ✅ **Fixes important bug**: Prevents potential memory corruption/crashes ✅ **Small and contained**: Single line addition ✅ **Minimal risk**: Only affects error path when insert_state() fails AND CONFIG_BUG is disabled ✅ **No new features**: Pure bug fix ✅ **No architectural changes**: Preserves existing error handling, just prevents fallthrough ✅ **Critical subsystem**: btrfs filesystem corruption prevention ✅ **Clear side effects**: No unintended consequences beyond fixing the bug **5. Risk Assessment:** - **Very Low Risk**: The change only affects an error condition that's already problematic - **Exotic scenario**: Only impacts systems with `CONFIG_BUG` disabled (uncommon but not impossible) - **No regression potential**: The change only prevents executing invalid code, doesn't change normal operation - **Well-contained**: Affects only one function in one file **6. Security Implications:** While `CONFIG_BUG` disabled is uncommon, this could potentially be exploited if an attacker can trigger the `insert_state()` failure condition, leading to memory corruption. The fix prevents this attack vector. This is a clear candidate for stable backporting - it fixes a real bug with minimal risk and follows the stable tree rules perfectly. fs/btrfs/extent-io-tree.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/btrfs/extent-io-tree.c b/fs/btrfs/extent-io-tree.c index 6d08c100b01de..bb3aaf610652a 100644 --- a/fs/btrfs/extent-io-tree.c +++ b/fs/btrfs/extent-io-tree.c @@ -1456,6 +1456,7 @@ int convert_extent_bit(struct extent_io_tree *tree, u64 start, u64 end, if (IS_ERR(inserted_state)) { ret = PTR_ERR(inserted_state); extent_io_tree_panic(tree, prealloc, "insert", ret); + goto out; } cache_state(inserted_state, cached_state); if (inserted_state == prealloc) -- 2.39.5

3 months, 3 weeks

1
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[PATCH AUTOSEL 6.14 1/8] btrfs: exit after state insertion failure at btrfs_convert_extent_bit()

by Sasha Levin

From: Filipe Manana <fdmanana(a)suse.com> [ Upstream commit 3bf179e36da917c5d9bec71c714573ed1649b7c1 ] If insert_state() state failed it returns an error pointer and we call extent_io_tree_panic() which will trigger a BUG() call. However if CONFIG_BUG is disabled, which is an uncommon and exotic scenario, then we fallthrough and call cache_state() which will dereference the error pointer, resulting in an invalid memory access. So jump to the 'out' label after calling extent_io_tree_panic(), it also makes the code more clear besides dealing with the exotic scenario where CONFIG_BUG is disabled. Signed-off-by: Filipe Manana <fdmanana(a)suse.com> Reviewed-by: David Sterba <dsterba(a)suse.com> Signed-off-by: David Sterba <dsterba(a)suse.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- **YES** This commit should be backported to stable kernel trees. **Detailed Analysis:** **1. Bug Description and Impact:** The commit fixes a serious potential memory corruption bug in the btrfs filesystem. When `insert_state()` fails in `btrfs_convert_extent_bit()`, it returns an error pointer (ERR_PTR). The current code calls `extent_io_tree_panic()` which triggers `BUG()`, but if `CONFIG_BUG` is disabled, the code continues executing and calls `cache_state(inserted_state, cached_state)` with the error pointer, causing invalid memory access. **2. Code Changes Analysis:** The fix is minimal and surgical - just adding a single `goto out;` statement after the `extent_io_tree_panic()` call: ```c if (IS_ERR(inserted_state)) { ret = PTR_ERR(inserted_state); extent_io_tree_panic(tree, prealloc, "insert", ret); + goto out; // <-- The fix } ``` This ensures that when `CONFIG_BUG` is disabled, execution jumps to the cleanup code instead of continuing with an invalid pointer. **3. Comparison with Similar Commits:** This commit aligns with the pattern seen in "Similar Commit #2" (Status: YES), which also: - Removes reliance on `BUG_ON()` behavior - Provides graceful error handling - Has minimal risk - Fixes a potential crash/corruption scenario Similar to commit #3 and #5 (both Status: NO), this touches BUG() handling, but unlike those commits which make broader architectural changes to error handling patterns, this fix is much more contained. **4. Stable Tree Criteria Assessment:** ✅ **Fixes important bug**: Prevents potential memory corruption/crashes ✅ **Small and contained**: Single line addition ✅ **Minimal risk**: Only affects error path when insert_state() fails AND CONFIG_BUG is disabled ✅ **No new features**: Pure bug fix ✅ **No architectural changes**: Preserves existing error handling, just prevents fallthrough ✅ **Critical subsystem**: btrfs filesystem corruption prevention ✅ **Clear side effects**: No unintended consequences beyond fixing the bug **5. Risk Assessment:** - **Very Low Risk**: The change only affects an error condition that's already problematic - **Exotic scenario**: Only impacts systems with `CONFIG_BUG` disabled (uncommon but not impossible) - **No regression potential**: The change only prevents executing invalid code, doesn't change normal operation - **Well-contained**: Affects only one function in one file **6. Security Implications:** While `CONFIG_BUG` disabled is uncommon, this could potentially be exploited if an attacker can trigger the `insert_state()` failure condition, leading to memory corruption. The fix prevents this attack vector. This is a clear candidate for stable backporting - it fixes a real bug with minimal risk and follows the stable tree rules perfectly. fs/btrfs/extent-io-tree.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/btrfs/extent-io-tree.c b/fs/btrfs/extent-io-tree.c index 6d08c100b01de..bb3aaf610652a 100644 --- a/fs/btrfs/extent-io-tree.c +++ b/fs/btrfs/extent-io-tree.c @@ -1456,6 +1456,7 @@ int convert_extent_bit(struct extent_io_tree *tree, u64 start, u64 end, if (IS_ERR(inserted_state)) { ret = PTR_ERR(inserted_state); extent_io_tree_panic(tree, prealloc, "insert", ret); + goto out; } cache_state(inserted_state, cached_state); if (inserted_state == prealloc) -- 2.39.5

3 months, 3 weeks

1
7
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[PATCH AUTOSEL 6.15 1/9] btrfs: exit after state insertion failure at btrfs_convert_extent_bit()

by Sasha Levin

From: Filipe Manana <fdmanana(a)suse.com> [ Upstream commit 3bf179e36da917c5d9bec71c714573ed1649b7c1 ] If insert_state() state failed it returns an error pointer and we call extent_io_tree_panic() which will trigger a BUG() call. However if CONFIG_BUG is disabled, which is an uncommon and exotic scenario, then we fallthrough and call cache_state() which will dereference the error pointer, resulting in an invalid memory access. So jump to the 'out' label after calling extent_io_tree_panic(), it also makes the code more clear besides dealing with the exotic scenario where CONFIG_BUG is disabled. Signed-off-by: Filipe Manana <fdmanana(a)suse.com> Reviewed-by: David Sterba <dsterba(a)suse.com> Signed-off-by: David Sterba <dsterba(a)suse.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- **YES** This commit should be backported to stable kernel trees. **Detailed Analysis:** **1. Bug Description and Impact:** The commit fixes a serious potential memory corruption bug in the btrfs filesystem. When `insert_state()` fails in `btrfs_convert_extent_bit()`, it returns an error pointer (ERR_PTR). The current code calls `extent_io_tree_panic()` which triggers `BUG()`, but if `CONFIG_BUG` is disabled, the code continues executing and calls `cache_state(inserted_state, cached_state)` with the error pointer, causing invalid memory access. **2. Code Changes Analysis:** The fix is minimal and surgical - just adding a single `goto out;` statement after the `extent_io_tree_panic()` call: ```c if (IS_ERR(inserted_state)) { ret = PTR_ERR(inserted_state); extent_io_tree_panic(tree, prealloc, "insert", ret); + goto out; // <-- The fix } ``` This ensures that when `CONFIG_BUG` is disabled, execution jumps to the cleanup code instead of continuing with an invalid pointer. **3. Comparison with Similar Commits:** This commit aligns with the pattern seen in "Similar Commit #2" (Status: YES), which also: - Removes reliance on `BUG_ON()` behavior - Provides graceful error handling - Has minimal risk - Fixes a potential crash/corruption scenario Similar to commit #3 and #5 (both Status: NO), this touches BUG() handling, but unlike those commits which make broader architectural changes to error handling patterns, this fix is much more contained. **4. Stable Tree Criteria Assessment:** ✅ **Fixes important bug**: Prevents potential memory corruption/crashes ✅ **Small and contained**: Single line addition ✅ **Minimal risk**: Only affects error path when insert_state() fails AND CONFIG_BUG is disabled ✅ **No new features**: Pure bug fix ✅ **No architectural changes**: Preserves existing error handling, just prevents fallthrough ✅ **Critical subsystem**: btrfs filesystem corruption prevention ✅ **Clear side effects**: No unintended consequences beyond fixing the bug **5. Risk Assessment:** - **Very Low Risk**: The change only affects an error condition that's already problematic - **Exotic scenario**: Only impacts systems with `CONFIG_BUG` disabled (uncommon but not impossible) - **No regression potential**: The change only prevents executing invalid code, doesn't change normal operation - **Well-contained**: Affects only one function in one file **6. Security Implications:** While `CONFIG_BUG` disabled is uncommon, this could potentially be exploited if an attacker can trigger the `insert_state()` failure condition, leading to memory corruption. The fix prevents this attack vector. This is a clear candidate for stable backporting - it fixes a real bug with minimal risk and follows the stable tree rules perfectly. fs/btrfs/extent-io-tree.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/btrfs/extent-io-tree.c b/fs/btrfs/extent-io-tree.c index 13de6af279e52..92cfde37b1d33 100644 --- a/fs/btrfs/extent-io-tree.c +++ b/fs/btrfs/extent-io-tree.c @@ -1456,6 +1456,7 @@ int convert_extent_bit(struct extent_io_tree *tree, u64 start, u64 end, if (IS_ERR(inserted_state)) { ret = PTR_ERR(inserted_state); extent_io_tree_panic(tree, prealloc, "insert", ret); + goto out; } cache_state(inserted_state, cached_state); if (inserted_state == prealloc) -- 2.39.5

3 months, 3 weeks

1
8
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[PATCH v3] mm/hugetlb: fix a deadlock with pagecache_folio and hugetlb_fault_mutex_table

by Gavin Guo

There is ABBA dead locking scenario happening between hugetlb_fault() and hugetlb_wp() on the pagecache folio's lock and hugetlb global mutex, which is reproducible with syzkaller [1]. As below stack traces reveal, process-1 tries to take the hugetlb global mutex (A3), but with the pagecache folio's lock hold. Process-2 took the hugetlb global mutex but tries to take the pagecache folio's lock. Process-1 Process-2 ========= ========= hugetlb_fault mutex_lock (A1) filemap_lock_hugetlb_folio (B1) hugetlb_wp alloc_hugetlb_folio #error mutex_unlock (A2) hugetlb_fault mutex_lock (A4) filemap_lock_hugetlb_folio (B4) unmap_ref_private mutex_lock (A3) Fix it by releasing the pagecache folio's lock at (A2) of process-1 so that pagecache folio's lock is available to process-2 at (B4), to avoid the deadlock. In process-1, a new variable is added to track if the pagecache folio's lock has been released by its child function hugetlb_wp() to avoid double releases on the lock in hugetlb_fault(). The similar changes are applied to hugetlb_no_page(). Link: https://drive.google.com/file/d/1DVRnIW-vSayU5J1re9Ct_br3jJQU6Vpb/view?usp=… [1] Fixes: 40549ba8f8e0 ("hugetlb: use new vma_lock for pmd sharing synchronization") Cc: <stable(a)vger.kernel.org> Cc: Hugh Dickins <hughd(a)google.com> Cc: Florent Revest <revest(a)google.com> Reviewed-by: Gavin Shan <gshan(a)redhat.com> Signed-off-by: Gavin Guo <gavinguo(a)igalia.com> --- V1 -> V2 Suggested-by Oscar Salvador: - Use folio_test_locked to replace the unnecessary parameter passing. V2 -> V3 - Dropped the approach suggested by Oscar. - Refine the code and git commit suggested by Gavin Shan. mm/hugetlb.c | 25 +++++++++++++++++++++---- 1 file changed, 21 insertions(+), 4 deletions(-) diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 6a3cf7935c14..560b9b35262a 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -6137,7 +6137,8 @@ static void unmap_ref_private(struct mm_struct *mm, struct vm_area_struct *vma, * Keep the pte_same checks anyway to make transition from the mutex easier. */ static vm_fault_t hugetlb_wp(struct folio *pagecache_folio, - struct vm_fault *vmf) + struct vm_fault *vmf, + bool *pagecache_folio_locked) { struct vm_area_struct *vma = vmf->vma; struct mm_struct *mm = vma->vm_mm; @@ -6234,6 +6235,18 @@ static vm_fault_t hugetlb_wp(struct folio *pagecache_folio, u32 hash; folio_put(old_folio); + /* + * The pagecache_folio has to be unlocked to avoid + * deadlock and we won't re-lock it in hugetlb_wp(). The + * pagecache_folio could be truncated after being + * unlocked. So its state should not be reliable + * subsequently. + */ + if (pagecache_folio) { + folio_unlock(pagecache_folio); + if (pagecache_folio_locked) + *pagecache_folio_locked = false; + } /* * Drop hugetlb_fault_mutex and vma_lock before * unmapping. unmapping needs to hold vma_lock @@ -6588,7 +6601,7 @@ static vm_fault_t hugetlb_no_page(struct address_space *mapping, hugetlb_count_add(pages_per_huge_page(h), mm); if ((vmf->flags & FAULT_FLAG_WRITE) && !(vma->vm_flags & VM_SHARED)) { /* Optimization, do the COW without a second fault */ - ret = hugetlb_wp(folio, vmf); + ret = hugetlb_wp(folio, vmf, NULL); } spin_unlock(vmf->ptl); @@ -6660,6 +6673,7 @@ vm_fault_t hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma, struct hstate *h = hstate_vma(vma); struct address_space *mapping; int need_wait_lock = 0; + bool pagecache_folio_locked = true; struct vm_fault vmf = { .vma = vma, .address = address & huge_page_mask(h), @@ -6814,7 +6828,8 @@ vm_fault_t hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma, if (flags & (FAULT_FLAG_WRITE|FAULT_FLAG_UNSHARE)) { if (!huge_pte_write(vmf.orig_pte)) { - ret = hugetlb_wp(pagecache_folio, &vmf); + ret = hugetlb_wp(pagecache_folio, &vmf, + &pagecache_folio_locked); goto out_put_page; } else if (likely(flags & FAULT_FLAG_WRITE)) { vmf.orig_pte = huge_pte_mkdirty(vmf.orig_pte); @@ -6832,7 +6847,9 @@ vm_fault_t hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma, spin_unlock(vmf.ptl); if (pagecache_folio) { - folio_unlock(pagecache_folio); + if (pagecache_folio_locked) + folio_unlock(pagecache_folio); + folio_put(pagecache_folio); } out_mutex: base-commit: 914873bc7df913db988284876c16257e6ab772c6 -- 2.43.0

3 months, 3 weeks

5
10
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[PATCH 2/8] drm/fdinfo: Switch to idr_for_each() in drm_show_memory_stats()

by Simona Vetter

Unlike idr_for_each_entry(), which terminates on the first NULL entry, idr_for_each passes them through. This fixes potential issues with the idr walk terminating prematurely due to transient NULL entries the exist when creating and destroying a handle. Note that transient NULL pointers in drm_file.object_idr have been a thing since f6cd7daecff5 ("drm: Release driver references to handle before making it available again"), this is a really old issue. Aside from temporarily inconsistent fdinfo statistic there's no other impact of this issue. Fixes: 686b21b5f6ca ("drm: Add fdinfo memory stats") Cc: Rob Clark <robdclark(a)chromium.org> Cc: Emil Velikov <emil.l.velikov(a)gmail.com> Cc: Tvrtko Ursulin <tvrtko.ursulin(a)intel.com> Cc: <stable(a)vger.kernel.org> # v6.5+ Signed-off-by: Simona Vetter <simona.vetter(a)intel.com> Signed-off-by: Simona Vetter <simona.vetter(a)ffwll.ch> --- drivers/gpu/drm/drm_file.c | 95 ++++++++++++++++++++++---------------- 1 file changed, 55 insertions(+), 40 deletions(-) diff --git a/drivers/gpu/drm/drm_file.c b/drivers/gpu/drm/drm_file.c index 246cf845e2c9..428a4eb85e94 100644 --- a/drivers/gpu/drm/drm_file.c +++ b/drivers/gpu/drm/drm_file.c @@ -892,6 +892,58 @@ void drm_print_memory_stats(struct drm_printer *p, } EXPORT_SYMBOL(drm_print_memory_stats); +struct drm_bo_print_data { + struct drm_memory_stats status; + enum drm_gem_object_status supported_status; +}; + +static int +drm_bo_memory_stats(int id, void *ptr, void *data) +{ + struct drm_bo_print_data *drm_data; + struct drm_gem_object *obj = ptr; + enum drm_gem_object_status s = 0; + size_t add_size; + + if (!obj) + return 0; + + add_size = (obj->funcs && obj->funcs->rss) ? + obj->funcs->rss(obj) : obj->size; + + if (obj->funcs && obj->funcs->status) { + s = obj->funcs->status(obj); + drm_data->supported_status |= s; + } + + if (drm_gem_object_is_shared_for_memory_stats(obj)) + drm_data->status.shared += obj->size; + else + drm_data->status.private += obj->size; + + if (s & DRM_GEM_OBJECT_RESIDENT) { + drm_data->status.resident += add_size; + } else { + /* If already purged or not yet backed by pages, don't + * count it as purgeable: + */ + s &= ~DRM_GEM_OBJECT_PURGEABLE; + } + + if (!dma_resv_test_signaled(obj->resv, dma_resv_usage_rw(true))) { + drm_data->status.active += add_size; + drm_data->supported_status |= DRM_GEM_OBJECT_ACTIVE; + + /* If still active, don't count as purgeable: */ + s &= ~DRM_GEM_OBJECT_PURGEABLE; + } + + if (s & DRM_GEM_OBJECT_PURGEABLE) + drm_data->status.purgeable += add_size; + + return 0; +} + /** * drm_show_memory_stats - Helper to collect and show standard fdinfo memory stats * @p: the printer to print output to @@ -902,50 +954,13 @@ EXPORT_SYMBOL(drm_print_memory_stats); */ void drm_show_memory_stats(struct drm_printer *p, struct drm_file *file) { - struct drm_gem_object *obj; - struct drm_memory_stats status = {}; - enum drm_gem_object_status supported_status = 0; - int id; + struct drm_bo_print_data data = {}; spin_lock(&file->table_lock); - idr_for_each_entry (&file->object_idr, obj, id) { - enum drm_gem_object_status s = 0; - size_t add_size = (obj->funcs && obj->funcs->rss) ? - obj->funcs->rss(obj) : obj->size; - - if (obj->funcs && obj->funcs->status) { - s = obj->funcs->status(obj); - supported_status |= s; - } - - if (drm_gem_object_is_shared_for_memory_stats(obj)) - status.shared += obj->size; - else - status.private += obj->size; - - if (s & DRM_GEM_OBJECT_RESIDENT) { - status.resident += add_size; - } else { - /* If already purged or not yet backed by pages, don't - * count it as purgeable: - */ - s &= ~DRM_GEM_OBJECT_PURGEABLE; - } - - if (!dma_resv_test_signaled(obj->resv, dma_resv_usage_rw(true))) { - status.active += add_size; - supported_status |= DRM_GEM_OBJECT_ACTIVE; - - /* If still active, don't count as purgeable: */ - s &= ~DRM_GEM_OBJECT_PURGEABLE; - } - - if (s & DRM_GEM_OBJECT_PURGEABLE) - status.purgeable += add_size; - } + idr_for_each(&file->object_idr, &drm_bo_memory_stats, &data); spin_unlock(&file->table_lock); - drm_print_memory_stats(p, &status, supported_status, "memory"); + drm_print_memory_stats(p, &data.status, data.supported_status, "memory"); } EXPORT_SYMBOL(drm_show_memory_stats); -- 2.49.0

3 months, 3 weeks

2
2
0 0

[PATCH v2] can: kvaser_pciefd: refine error prone echo_skb_max handling logic

by Fedor Pchelkin

echo_skb_max should define the supported upper limit of echo_skb[] allocated inside the netdevice's priv. The corresponding size value provided by this driver to alloc_candev() is KVASER_PCIEFD_CAN_TX_MAX_COUNT which is 17. But later echo_skb_max is rounded up to the nearest power of two (for the max case, that would be 32) and the tx/ack indices calculated further during tx/rx may exceed the upper array boundary. Kasan reported this for the ack case inside kvaser_pciefd_handle_ack_packet(), though the xmit function has actually caught the same thing earlier. BUG: KASAN: slab-out-of-bounds in kvaser_pciefd_handle_ack_packet+0x2d7/0x92a drivers/net/can/kvaser_pciefd.c:1528 Read of size 8 at addr ffff888105e4f078 by task swapper/4/0 CPU: 4 UID: 0 PID: 0 Comm: swapper/4 Not tainted 6.15.0 #12 PREEMPT(voluntary) Call Trace: <IRQ> dump_stack_lvl lib/dump_stack.c:122 print_report mm/kasan/report.c:521 kasan_report mm/kasan/report.c:634 kvaser_pciefd_handle_ack_packet drivers/net/can/kvaser_pciefd.c:1528 kvaser_pciefd_read_packet drivers/net/can/kvaser_pciefd.c:1605 kvaser_pciefd_read_buffer drivers/net/can/kvaser_pciefd.c:1656 kvaser_pciefd_receive_irq drivers/net/can/kvaser_pciefd.c:1684 kvaser_pciefd_irq_handler drivers/net/can/kvaser_pciefd.c:1733 __handle_irq_event_percpu kernel/irq/handle.c:158 handle_irq_event kernel/irq/handle.c:210 handle_edge_irq kernel/irq/chip.c:833 __common_interrupt arch/x86/kernel/irq.c:296 common_interrupt arch/x86/kernel/irq.c:286 </IRQ> Tx max count definitely matters for kvaser_pciefd_tx_avail(), but for seq numbers' generation that's not the case - we're free to calculate them as would be more convenient, not taking tx max count into account. The only downside is that the size of echo_skb[] should correspond to the max seq number (not tx max count), so in some situations a bit more memory would be consumed than could be. Thus make the size of the underlying echo_skb[] sufficient for the rounded max tx value. Found by Linux Verification Center (linuxtesting.org) with Syzkaller. Fixes: 8256e0ca6010 ("can: kvaser_pciefd: Fix echo_skb race") Cc: stable(a)vger.kernel.org Signed-off-by: Fedor Pchelkin <pchelkin(a)ispras.ru> --- v2: fix the problem by rounding up the KVASER_PCIEFD_CAN_TX_MAX_COUNT constant when allocating candev (Axel Forsman) drivers/net/can/kvaser_pciefd.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/can/kvaser_pciefd.c b/drivers/net/can/kvaser_pciefd.c index f6921368cd14..0071a51ce2c1 100644 --- a/drivers/net/can/kvaser_pciefd.c +++ b/drivers/net/can/kvaser_pciefd.c @@ -966,7 +966,7 @@ static int kvaser_pciefd_setup_can_ctrls(struct kvaser_pciefd *pcie) u32 status, tx_nr_packets_max; netdev = alloc_candev(sizeof(struct kvaser_pciefd_can), - KVASER_PCIEFD_CAN_TX_MAX_COUNT); + roundup_pow_of_two(KVASER_PCIEFD_CAN_TX_MAX_COUNT)); if (!netdev) return -ENOMEM; @@ -995,7 +995,6 @@ static int kvaser_pciefd_setup_can_ctrls(struct kvaser_pciefd *pcie) can->tx_max_count = min(KVASER_PCIEFD_CAN_TX_MAX_COUNT, tx_nr_packets_max - 1); can->can.clock.freq = pcie->freq; - can->can.echo_skb_max = roundup_pow_of_two(can->tx_max_count); spin_lock_init(&can->lock); can->can.bittiming_const = &kvaser_pciefd_bittiming_const; -- 2.49.0

3 months, 3 weeks

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[PATCH] can: kvaser_pciefd: refine error prone echo_skb_max handling logic

by Fedor Pchelkin

echo_skb_max should define the supported upper limit of echo_skb[] allocated inside the netdevice's priv. The corresponding size value provided by this driver to alloc_candev() is KVASER_PCIEFD_CAN_TX_MAX_COUNT which is 17. But later echo_skb_max is rounded up to the nearest power of two (for the max case, that would be 32) and the tx/ack indices calculated further during tx/rx may exceed the upper array boundary. Kasan reported this for the ack case inside kvaser_pciefd_handle_ack_packet(), though the xmit function has actually caught the same thing earlier. BUG: KASAN: slab-out-of-bounds in kvaser_pciefd_handle_ack_packet+0x2d7/0x92a drivers/net/can/kvaser_pciefd.c:1528 Read of size 8 at addr ffff888105e4f078 by task swapper/4/0 CPU: 4 UID: 0 PID: 0 Comm: swapper/4 Not tainted 6.15.0 #12 PREEMPT(voluntary) Call Trace: <IRQ> dump_stack_lvl lib/dump_stack.c:122 print_report mm/kasan/report.c:521 kasan_report mm/kasan/report.c:634 kvaser_pciefd_handle_ack_packet drivers/net/can/kvaser_pciefd.c:1528 kvaser_pciefd_read_packet drivers/net/can/kvaser_pciefd.c:1605 kvaser_pciefd_read_buffer drivers/net/can/kvaser_pciefd.c:1656 kvaser_pciefd_receive_irq drivers/net/can/kvaser_pciefd.c:1684 kvaser_pciefd_irq_handler drivers/net/can/kvaser_pciefd.c:1733 __handle_irq_event_percpu kernel/irq/handle.c:158 handle_irq_event kernel/irq/handle.c:210 handle_edge_irq kernel/irq/chip.c:833 __common_interrupt arch/x86/kernel/irq.c:296 common_interrupt arch/x86/kernel/irq.c:286 </IRQ> Remove echo_skb_max rounding as this may increase it to unexpected values. In this sense restore echo_skb_max handling logic prior to commit 8256e0ca6010 ("can: kvaser_pciefd: Fix echo_skb race"). Found by Linux Verification Center (linuxtesting.org) with Syzkaller. Fixes: 8256e0ca6010 ("can: kvaser_pciefd: Fix echo_skb race") Cc: stable(a)vger.kernel.org Signed-off-by: Fedor Pchelkin <pchelkin(a)ispras.ru> --- Actually the trick with rounding up allows to calculate seq numbers efficiently, avoiding a more consuming 'mod' operation used in the current patch. I see tx max size definitely matters only for kvaser_pciefd_tx_avail(), but for seq numbers' generation that's not the case - we're free to calculate them as would be more convenient, not taking tx max size into account. The only downside is that the size of echo_skb[] should correspond to the max seq number (not tx max number), so in some situations a bit more memory would be consumed than could be. So another approach to fix the problem would be to precompute the rounded up value of echo_skb_max and pass it to alloc_candev() making the size of the underlying echo_skb[] sufficient. If that looks more acceptable, I'll be glad to rework the patch in that direction. drivers/net/can/kvaser_pciefd.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/net/can/kvaser_pciefd.c b/drivers/net/can/kvaser_pciefd.c index f6921368cd14..1ec4ab9510b6 100644 --- a/drivers/net/can/kvaser_pciefd.c +++ b/drivers/net/can/kvaser_pciefd.c @@ -411,7 +411,6 @@ struct kvaser_pciefd_can { void __iomem *reg_base; struct can_berr_counter bec; u8 cmd_seq; - u8 tx_max_count; u8 tx_idx; u8 ack_idx; int err_rep_cnt; @@ -760,7 +759,7 @@ static int kvaser_pciefd_stop(struct net_device *netdev) static unsigned int kvaser_pciefd_tx_avail(const struct kvaser_pciefd_can *can) { - return can->tx_max_count - (READ_ONCE(can->tx_idx) - READ_ONCE(can->ack_idx)); + return can->can.echo_skb_max - (READ_ONCE(can->tx_idx) - READ_ONCE(can->ack_idx)); } static int kvaser_pciefd_prepare_tx_packet(struct kvaser_pciefd_tx_packet *p, @@ -810,7 +809,7 @@ static netdev_tx_t kvaser_pciefd_start_xmit(struct sk_buff *skb, { struct kvaser_pciefd_can *can = netdev_priv(netdev); struct kvaser_pciefd_tx_packet packet; - unsigned int seq = can->tx_idx & (can->can.echo_skb_max - 1); + unsigned int seq = can->tx_idx % can->can.echo_skb_max; unsigned int frame_len; int nr_words; @@ -992,10 +991,9 @@ static int kvaser_pciefd_setup_can_ctrls(struct kvaser_pciefd *pcie) tx_nr_packets_max = FIELD_GET(KVASER_PCIEFD_KCAN_TX_NR_PACKETS_MAX_MASK, ioread32(can->reg_base + KVASER_PCIEFD_KCAN_TX_NR_PACKETS_REG)); - can->tx_max_count = min(KVASER_PCIEFD_CAN_TX_MAX_COUNT, tx_nr_packets_max - 1); + can->can.echo_skb_max = min(KVASER_PCIEFD_CAN_TX_MAX_COUNT, tx_nr_packets_max - 1); can->can.clock.freq = pcie->freq; - can->can.echo_skb_max = roundup_pow_of_two(can->tx_max_count); spin_lock_init(&can->lock); can->can.bittiming_const = &kvaser_pciefd_bittiming_const; @@ -1523,7 +1521,7 @@ static int kvaser_pciefd_handle_ack_packet(struct kvaser_pciefd *pcie, unsigned int len, frame_len = 0; struct sk_buff *skb; - if (echo_idx != (can->ack_idx & (can->can.echo_skb_max - 1))) + if (echo_idx != can->ack_idx % can->can.echo_skb_max) return 0; skb = can->can.echo_skb[echo_idx]; if (!skb) -- 2.49.0

3 months, 3 weeks

2
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[PATCH] accel/ivpu: Fix warning in ivpu_gem_bo_free()

by Jacek Lawrynowicz

Don't WARN if imported buffers are in use in ivpu_gem_bo_free() as they can be indeed used in the original context/driver. Fixes: 647371a6609d ("accel/ivpu: Add GEM buffer object management") Cc: <stable(a)vger.kernel.org> # v6.3 Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz(a)linux.intel.com> --- drivers/accel/ivpu/ivpu_gem.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/accel/ivpu/ivpu_gem.c b/drivers/accel/ivpu/ivpu_gem.c index 5908268ca45e9..0371a8b4a474f 100644 --- a/drivers/accel/ivpu/ivpu_gem.c +++ b/drivers/accel/ivpu/ivpu_gem.c @@ -285,7 +285,8 @@ static void ivpu_gem_bo_free(struct drm_gem_object *obj) list_del(&bo->bo_list_node); mutex_unlock(&vdev->bo_list_lock); - drm_WARN_ON(&vdev->drm, !dma_resv_test_signaled(obj->resv, DMA_RESV_USAGE_READ)); + drm_WARN_ON(&vdev->drm, !bo->base.base.import_attach && + !dma_resv_test_signaled(obj->resv, DMA_RESV_USAGE_READ)); drm_WARN_ON(&vdev->drm, ivpu_bo_size(bo) == 0); drm_WARN_ON(&vdev->drm, bo->base.vaddr); -- 2.45.1

3 months, 3 weeks

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[PATCH] e1000e: fix heap overflow in e1000_set_eeprom()

by Mikael Wessel

The ETHTOOL_SETEEPROM ioctl copies user data into a kmalloc'ed buffer without validating eeprom->len and eeprom->offset. A CAP_NET_ADMIN user can overflow the heap and crash the kernel or gain code execution. Validate length and offset before kmalloc() to avoid leaking eeprom_buff. Fixes: bc7f75fa9788 ("[E1000E]: New pci-express e1000 driver (currently for ICH9 devices only)") Reported-by: Mikael Wessel <post(a)mikaelkw.online> Signed-off-by: Mikael Wessel <post(a)mikaelkw.online> Cc: stable(a)vger.kernel.org --- drivers/net/ethernet/intel/e1000e/ethtool.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/intel/e1000e/ethtool.c b/drivers/net/ethernet/intel/e1000e/ethtool.c index 98e541e39730..d04e59528619 100644 --- a/drivers/net/ethernet/intel/e1000e/ethtool.c +++ b/drivers/net/ethernet/intel/e1000e/ethtool.c @@ -561,7 +561,7 @@ static int e1000_set_eeprom(struct net_device *netdev, return -EOPNOTSUPP; if (eeprom->magic != - (adapter->pdev->vendor | (adapter->pdev->device << 16))) + (adapter->pdev->vendor | (adapter->pdev->device << 16))) return -EFAULT; if (adapter->flags & FLAG_READ_ONLY_NVM) @@ -569,6 +569,10 @@ static int e1000_set_eeprom(struct net_device *netdev, max_len = hw->nvm.word_size * 2; + /* bounds check: offset + len must not exceed EEPROM size */ + if (eeprom->offset + eeprom->len > max_len) + return -EINVAL; + first_word = eeprom->offset >> 1; last_word = (eeprom->offset + eeprom->len - 1) >> 1; eeprom_buff = kmalloc(max_len, GFP_KERNEL); @@ -596,9 +600,6 @@ static int e1000_set_eeprom(struct net_device *netdev, for (i = 0; i < last_word - first_word + 1; i++) le16_to_cpus(&eeprom_buff[i]); - if (eeprom->len > max_len || - eeprom->offset > max_len - eeprom->len) - return -EINVAL; memcpy(ptr, bytes, eeprom->len); for (i = 0; i < last_word - first_word + 1; i++) -- 2.48.1

3 months, 3 weeks

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[PATCH] wifi: ath12k: fix ring-buffer corruption

by Johan Hovold

Users of the Lenovo ThinkPad X13s have reported that Wi-Fi sometimes breaks and the log fills up with errors like: ath11k_pci 0006:01:00.0: HTC Rx: insufficient length, got 1484, expected 1492 ath11k_pci 0006:01:00.0: HTC Rx: insufficient length, got 1460, expected 1484 which based on a quick look at the ath11k driver seemed to indicate some kind of ring-buffer corruption. Miaoqing Pan tracked it down to the host seeing the updated destination ring head pointer before the updated descriptor, and the error handling for that in turn leaves the ring buffer in an inconsistent state. While this has not yet been observed with ath12k, the ring-buffer implementation is very similar to the ath11k one and it suffers from the same bugs. Add the missing memory barrier to make sure that the descriptor is read after the head pointer to address the root cause of the corruption while fixing up the error handling in case there are ever any (ordering) bugs on the device side. Note that the READ_ONCE() are only needed to avoid compiler mischief in case the ring-buffer helpers are ever inlined. Tested-on: WCN7850 hw2.0 WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 Fixes: d889913205cf ("wifi: ath12k: driver for Qualcomm Wi-Fi 7 devices") Cc: stable(a)vger.kernel.org # 6.3 Link: https://bugzilla.kernel.org/show_bug.cgi?id=218623 Link: https://lore.kernel.org/20250310010217.3845141-3-quic_miaoqing@quicinc.com Cc: Miaoqing Pan <quic_miaoqing(a)quicinc.com> Signed-off-by: Johan Hovold <johan+linaro(a)kernel.org> --- drivers/net/wireless/ath/ath12k/ce.c | 11 +++++------ drivers/net/wireless/ath/ath12k/hal.c | 4 ++-- 2 files changed, 7 insertions(+), 8 deletions(-) diff --git a/drivers/net/wireless/ath/ath12k/ce.c b/drivers/net/wireless/ath/ath12k/ce.c index be0d669d31fc..740586fe49d1 100644 --- a/drivers/net/wireless/ath/ath12k/ce.c +++ b/drivers/net/wireless/ath/ath12k/ce.c @@ -343,11 +343,10 @@ static int ath12k_ce_completed_recv_next(struct ath12k_ce_pipe *pipe, goto err; } + /* Make sure descriptor is read after the head pointer. */ + dma_rmb(); + *nbytes = ath12k_hal_ce_dst_status_get_length(desc); - if (*nbytes == 0) { - ret = -EIO; - goto err; - } *skb = pipe->dest_ring->skb[sw_index]; pipe->dest_ring->skb[sw_index] = NULL; @@ -380,8 +379,8 @@ static void ath12k_ce_recv_process_cb(struct ath12k_ce_pipe *pipe) dma_unmap_single(ab->dev, ATH12K_SKB_RXCB(skb)->paddr, max_nbytes, DMA_FROM_DEVICE); - if (unlikely(max_nbytes < nbytes)) { - ath12k_warn(ab, "rxed more than expected (nbytes %d, max %d)", + if (unlikely(max_nbytes < nbytes || nbytes == 0)) { + ath12k_warn(ab, "unexpected rx length (nbytes %d, max %d)", nbytes, max_nbytes); dev_kfree_skb_any(skb); continue; diff --git a/drivers/net/wireless/ath/ath12k/hal.c b/drivers/net/wireless/ath/ath12k/hal.c index cd59ff8e6c7b..91d5126ca149 100644 --- a/drivers/net/wireless/ath/ath12k/hal.c +++ b/drivers/net/wireless/ath/ath12k/hal.c @@ -1962,7 +1962,7 @@ u32 ath12k_hal_ce_dst_status_get_length(struct hal_ce_srng_dst_status_desc *desc { u32 len; - len = le32_get_bits(desc->flags, HAL_CE_DST_STATUS_DESC_FLAGS_LEN); + len = le32_get_bits(READ_ONCE(desc->flags), HAL_CE_DST_STATUS_DESC_FLAGS_LEN); desc->flags &= ~cpu_to_le32(HAL_CE_DST_STATUS_DESC_FLAGS_LEN); return len; @@ -2132,7 +2132,7 @@ void ath12k_hal_srng_access_begin(struct ath12k_base *ab, struct hal_srng *srng) srng->u.src_ring.cached_tp = *(volatile u32 *)srng->u.src_ring.tp_addr; else - srng->u.dst_ring.cached_hp = *srng->u.dst_ring.hp_addr; + srng->u.dst_ring.cached_hp = READ_ONCE(*srng->u.dst_ring.hp_addr); } /* Update cached ring head/tail pointers to HW. ath12k_hal_srng_access_begin() -- 2.48.1

3 months, 3 weeks

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[PATCH] iommu/arm-smmu-qcom: Add SM6115 MDSS compatible

by Alexey Klimov

Add the SM6115 MDSS compatible to clients compatible list, as it also needs that workaround. Without this workaround, for example, QRB4210 RB2 which is based on SM4250/SM6115 generates a lot of smmu unhandled context faults during boot: arm_smmu_context_fault: 116854 callbacks suppressed arm-smmu c600000.iommu: Unhandled context fault: fsr=0x402, iova=0x5c0ec600, fsynr=0x320021, cbfrsynra=0x420, cb=5 arm-smmu c600000.iommu: FSR = 00000402 [Format=2 TF], SID=0x420 arm-smmu c600000.iommu: FSYNR0 = 00320021 [S1CBNDX=50 PNU PLVL=1] arm-smmu c600000.iommu: Unhandled context fault: fsr=0x402, iova=0x5c0d7800, fsynr=0x320021, cbfrsynra=0x420, cb=5 arm-smmu c600000.iommu: FSR = 00000402 [Format=2 TF], SID=0x420 and also leads to failed initialisation of lontium lt9611uxc driver and gpu afterwards: ------------[ cut here ]------------ !aspace WARNING: CPU: 6 PID: 324 at drivers/gpu/drm/msm/msm_gem_vma.c:130 msm_gem_vma_init+0x150/0x18c [msm] Modules linked in: ... (long list of modules) CPU: 6 UID: 0 PID: 324 Comm: (udev-worker) Not tainted 6.15.0-03037-gaacc73ceeb8b #4 PREEMPT Hardware name: Qualcomm Technologies, Inc. QRB4210 RB2 (DT) pstate: 80000005 (Nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : msm_gem_vma_init+0x150/0x18c [msm] lr : msm_gem_vma_init+0x150/0x18c [msm] sp : ffff80008144b280 ... Call trace: msm_gem_vma_init+0x150/0x18c [msm] (P) get_vma_locked+0xc0/0x194 [msm] msm_gem_get_and_pin_iova_range+0x4c/0xdc [msm] msm_gem_kernel_new+0x48/0x160 [msm] msm_gpu_init+0x34c/0x53c [msm] adreno_gpu_init+0x1b0/0x2d8 [msm] a6xx_gpu_init+0x1e8/0x9e0 [msm] adreno_bind+0x2b8/0x348 [msm] component_bind_all+0x100/0x230 msm_drm_bind+0x13c/0x3d0 [msm] try_to_bring_up_aggregate_device+0x164/0x1d0 __component_add+0xa4/0x174 component_add+0x14/0x20 dsi_dev_attach+0x20/0x34 [msm] dsi_host_attach+0x58/0x98 [msm] devm_mipi_dsi_attach+0x34/0x90 lt9611uxc_attach_dsi.isra.0+0x94/0x124 [lontium_lt9611uxc] lt9611uxc_probe+0x540/0x5fc [lontium_lt9611uxc] i2c_device_probe+0x148/0x2a8 really_probe+0xbc/0x2c0 __driver_probe_device+0x78/0x120 driver_probe_device+0x3c/0x154 __driver_attach+0x90/0x1a0 bus_for_each_dev+0x68/0xb8 driver_attach+0x24/0x30 bus_add_driver+0xe4/0x208 driver_register+0x68/0x124 i2c_register_driver+0x48/0xcc lt9611uxc_driver_init+0x20/0x1000 [lontium_lt9611uxc] do_one_initcall+0x60/0x1d4 do_init_module+0x54/0x1fc load_module+0x1748/0x1c8c init_module_from_file+0x74/0xa0 __arm64_sys_finit_module+0x130/0x2f8 invoke_syscall+0x48/0x104 el0_svc_common.constprop.0+0xc0/0xe0 do_el0_svc+0x1c/0x28 el0_svc+0x2c/0x80 el0t_64_sync_handler+0x10c/0x138 el0t_64_sync+0x198/0x19c ---[ end trace 0000000000000000 ]--- msm_dpu 5e01000.display-controller: [drm:msm_gpu_init [msm]] *ERROR* could not allocate memptrs: -22 msm_dpu 5e01000.display-controller: failed to load adreno gpu platform a400000.remoteproc:glink-edge:apr:service@7:dais: Adding to iommu group 19 msm_dpu 5e01000.display-controller: failed to bind 5900000.gpu (ops a3xx_ops [msm]): -22 msm_dpu 5e01000.display-controller: adev bind failed: -22 lt9611uxc 0-002b: failed to attach dsi to host lt9611uxc 0-002b: probe with driver lt9611uxc failed with error -22 Suggested-by: Bjorn Andersson <andersson(a)kernel.org> Cc: <stable(a)vger.kernel.org> Signed-off-by: Alexey Klimov <alexey.klimov(a)linaro.org> --- drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c index 59d02687280e..c919babcea75 100644 --- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c @@ -365,6 +365,7 @@ static const struct of_device_id qcom_smmu_client_of_match[] __maybe_unused = { { .compatible = "qcom,sdm670-mdss" }, { .compatible = "qcom,sdm845-mdss" }, { .compatible = "qcom,sdm845-mss-pil" }, + { .compatible = "qcom,sm6115-mdss" }, { .compatible = "qcom,sm6350-mdss" }, { .compatible = "qcom,sm6375-mdss" }, { .compatible = "qcom,sm8150-mdss" }, -- 2.47.2

3 months, 3 weeks

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[PATCH 2/2] drm/amdgpu: Dirty cleared blocks on allocation

by Natalie Vock

If we hand out cleared blocks to users, they are expected to write at least some non-zero values somewhere. If we keep the CLEAR bit set on the block, amdgpu_fill_buffer will assume there is nothing to do and incorrectly skip clearing the block. Ultimately, the (still dirty) block will be reused as if it were cleared, without any wiping of the memory contents. Most severely, this means that any buffer allocated with AMDGPU_GEM_CREATE_VRAM_CLEARED | AMDGPU_GEM_CREATE_WIPE_ON_RELEASE (which is the case for **all userspace buffers**) are neither guaranteed to contain cleared VRAM, nor are they being wiped on release, potentially leaking application memory to arbitrary other applications. Fixes: a68c7eaa7a8ff ("drm/amdgpu: Enable clear page functionality") Cc: stable(a)vger.kernel.org Link: https://gitlab.freedesktop.org/drm/amd/-/issues/3812 Signed-off-by: Natalie Vock <natalie.vock(a)gmx.de> --- drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c index 2d7f82e98df9..cecc67d0f0b8 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c @@ -591,6 +591,13 @@ static int amdgpu_vram_mgr_new(struct ttm_resource_manager *man, list_for_each_entry(block, &vres->blocks, link) { unsigned long start; + /* + * Allocated blocks may be dirtied as soon as we return. + * Mark all blocks as dirty here, otherwise we might + * incorrectly assume the memory is still zeroed. + */ + drm_buddy_block_set_dirty(block); + start = amdgpu_vram_mgr_block_start(block) + amdgpu_vram_mgr_block_size(block); start >>= PAGE_SHIFT; -- 2.49.0

3 months, 3 weeks

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FAILED: patch "[PATCH] can: kvaser_pciefd: Force IRQ edge in case of nested IRQ" failed to apply to 6.6-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.6-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y git checkout FETCH_HEAD git cherry-pick -x 9176bd205ee0b2cd35073a9973c2a0936bcb579e # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025052430-customary-paramount-b71a@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 9176bd205ee0b2cd35073a9973c2a0936bcb579e Mon Sep 17 00:00:00 2001 From: Axel Forsman <axfo(a)kvaser.com> Date: Tue, 20 May 2025 13:43:30 +0200 Subject: [PATCH] can: kvaser_pciefd: Force IRQ edge in case of nested IRQ Avoid the driver missing IRQs by temporarily masking IRQs in the ISR to enforce an edge even if a different IRQ is signalled before handled IRQs are cleared. Fixes: 48f827d4f48f ("can: kvaser_pciefd: Move reset of DMA RX buffers to the end of the ISR") Cc: stable(a)vger.kernel.org Signed-off-by: Axel Forsman <axfo(a)kvaser.com> Tested-by: Jimmy Assarsson <extja(a)kvaser.com> Reviewed-by: Jimmy Assarsson <extja(a)kvaser.com> Link: https://patch.msgid.link/20250520114332.8961-2-axfo@kvaser.com Signed-off-by: Marc Kleine-Budde <mkl(a)pengutronix.de> diff --git a/drivers/net/can/kvaser_pciefd.c b/drivers/net/can/kvaser_pciefd.c index cf0d51805272..9cc9176c2058 100644 --- a/drivers/net/can/kvaser_pciefd.c +++ b/drivers/net/can/kvaser_pciefd.c @@ -1646,24 +1646,28 @@ static int kvaser_pciefd_read_buffer(struct kvaser_pciefd *pcie, int dma_buf) return res; } -static u32 kvaser_pciefd_receive_irq(struct kvaser_pciefd *pcie) +static void kvaser_pciefd_receive_irq(struct kvaser_pciefd *pcie) { + void __iomem *srb_cmd_reg = KVASER_PCIEFD_SRB_ADDR(pcie) + KVASER_PCIEFD_SRB_CMD_REG; u32 irq = ioread32(KVASER_PCIEFD_SRB_ADDR(pcie) + KVASER_PCIEFD_SRB_IRQ_REG); - if (irq & KVASER_PCIEFD_SRB_IRQ_DPD0) - kvaser_pciefd_read_buffer(pcie, 0); + iowrite32(irq, KVASER_PCIEFD_SRB_ADDR(pcie) + KVASER_PCIEFD_SRB_IRQ_REG); - if (irq & KVASER_PCIEFD_SRB_IRQ_DPD1) + if (irq & KVASER_PCIEFD_SRB_IRQ_DPD0) { + kvaser_pciefd_read_buffer(pcie, 0); + iowrite32(KVASER_PCIEFD_SRB_CMD_RDB0, srb_cmd_reg); /* Rearm buffer */ + } + + if (irq & KVASER_PCIEFD_SRB_IRQ_DPD1) { kvaser_pciefd_read_buffer(pcie, 1); + iowrite32(KVASER_PCIEFD_SRB_CMD_RDB1, srb_cmd_reg); /* Rearm buffer */ + } if (unlikely(irq & KVASER_PCIEFD_SRB_IRQ_DOF0 || irq & KVASER_PCIEFD_SRB_IRQ_DOF1 || irq & KVASER_PCIEFD_SRB_IRQ_DUF0 || irq & KVASER_PCIEFD_SRB_IRQ_DUF1)) dev_err(&pcie->pci->dev, "DMA IRQ error 0x%08X\n", irq); - - iowrite32(irq, KVASER_PCIEFD_SRB_ADDR(pcie) + KVASER_PCIEFD_SRB_IRQ_REG); - return irq; } static void kvaser_pciefd_transmit_irq(struct kvaser_pciefd_can *can) @@ -1691,29 +1695,22 @@ static irqreturn_t kvaser_pciefd_irq_handler(int irq, void *dev) struct kvaser_pciefd *pcie = (struct kvaser_pciefd *)dev; const struct kvaser_pciefd_irq_mask *irq_mask = pcie->driver_data->irq_mask; u32 pci_irq = ioread32(KVASER_PCIEFD_PCI_IRQ_ADDR(pcie)); - u32 srb_irq = 0; - u32 srb_release = 0; int i; if (!(pci_irq & irq_mask->all)) return IRQ_NONE; + iowrite32(0, KVASER_PCIEFD_PCI_IEN_ADDR(pcie)); + if (pci_irq & irq_mask->kcan_rx0) - srb_irq = kvaser_pciefd_receive_irq(pcie); + kvaser_pciefd_receive_irq(pcie); for (i = 0; i < pcie->nr_channels; i++) { if (pci_irq & irq_mask->kcan_tx[i]) kvaser_pciefd_transmit_irq(pcie->can[i]); } - if (srb_irq & KVASER_PCIEFD_SRB_IRQ_DPD0) - srb_release |= KVASER_PCIEFD_SRB_CMD_RDB0; - - if (srb_irq & KVASER_PCIEFD_SRB_IRQ_DPD1) - srb_release |= KVASER_PCIEFD_SRB_CMD_RDB1; - - if (srb_release) - iowrite32(srb_release, KVASER_PCIEFD_SRB_ADDR(pcie) + KVASER_PCIEFD_SRB_CMD_REG); + iowrite32(irq_mask->all, KVASER_PCIEFD_PCI_IEN_ADDR(pcie)); return IRQ_HANDLED; } @@ -1733,13 +1730,22 @@ static void kvaser_pciefd_teardown_can_ctrls(struct kvaser_pciefd *pcie) } } +static void kvaser_pciefd_disable_irq_srcs(struct kvaser_pciefd *pcie) +{ + unsigned int i; + + /* Masking PCI_IRQ is insufficient as running ISR will unmask it */ + iowrite32(0, KVASER_PCIEFD_SRB_ADDR(pcie) + KVASER_PCIEFD_SRB_IEN_REG); + for (i = 0; i < pcie->nr_channels; ++i) + iowrite32(0, pcie->can[i]->reg_base + KVASER_PCIEFD_KCAN_IEN_REG); +} + static int kvaser_pciefd_probe(struct pci_dev *pdev, const struct pci_device_id *id) { int ret; struct kvaser_pciefd *pcie; const struct kvaser_pciefd_irq_mask *irq_mask; - void __iomem *irq_en_base; pcie = devm_kzalloc(&pdev->dev, sizeof(*pcie), GFP_KERNEL); if (!pcie) @@ -1805,8 +1811,7 @@ static int kvaser_pciefd_probe(struct pci_dev *pdev, KVASER_PCIEFD_SRB_ADDR(pcie) + KVASER_PCIEFD_SRB_IEN_REG); /* Enable PCI interrupts */ - irq_en_base = KVASER_PCIEFD_PCI_IEN_ADDR(pcie); - iowrite32(irq_mask->all, irq_en_base); + iowrite32(irq_mask->all, KVASER_PCIEFD_PCI_IEN_ADDR(pcie)); /* Ready the DMA buffers */ iowrite32(KVASER_PCIEFD_SRB_CMD_RDB0, KVASER_PCIEFD_SRB_ADDR(pcie) + KVASER_PCIEFD_SRB_CMD_REG); @@ -1820,8 +1825,7 @@ static int kvaser_pciefd_probe(struct pci_dev *pdev, return 0; err_free_irq: - /* Disable PCI interrupts */ - iowrite32(0, irq_en_base); + kvaser_pciefd_disable_irq_srcs(pcie); free_irq(pcie->pci->irq, pcie); err_pci_free_irq_vectors: @@ -1844,35 +1848,26 @@ static int kvaser_pciefd_probe(struct pci_dev *pdev, return ret; } -static void kvaser_pciefd_remove_all_ctrls(struct kvaser_pciefd *pcie) -{ - int i; - - for (i = 0; i < pcie->nr_channels; i++) { - struct kvaser_pciefd_can *can = pcie->can[i]; - - if (can) { - iowrite32(0, can->reg_base + KVASER_PCIEFD_KCAN_IEN_REG); - unregister_candev(can->can.dev); - timer_delete(&can->bec_poll_timer); - kvaser_pciefd_pwm_stop(can); - free_candev(can->can.dev); - } - } -} - static void kvaser_pciefd_remove(struct pci_dev *pdev) { struct kvaser_pciefd *pcie = pci_get_drvdata(pdev); + unsigned int i; - kvaser_pciefd_remove_all_ctrls(pcie); + for (i = 0; i < pcie->nr_channels; ++i) { + struct kvaser_pciefd_can *can = pcie->can[i]; - /* Disable interrupts */ - iowrite32(0, KVASER_PCIEFD_SRB_ADDR(pcie) + KVASER_PCIEFD_SRB_CTRL_REG); - iowrite32(0, KVASER_PCIEFD_PCI_IEN_ADDR(pcie)); + unregister_candev(can->can.dev); + timer_delete(&can->bec_poll_timer); + kvaser_pciefd_pwm_stop(can); + } + kvaser_pciefd_disable_irq_srcs(pcie); free_irq(pcie->pci->irq, pcie); pci_free_irq_vectors(pcie->pci); + + for (i = 0; i < pcie->nr_channels; ++i) + free_candev(pcie->can[i]->can.dev); + pci_iounmap(pdev, pcie->reg_base); pci_release_regions(pdev); pci_disable_device(pdev);

3 months, 3 weeks

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[PATCH v4] usb: dwc3: Abort suspend on soft disconnect failure

by Kuen-Han Tsai

When dwc3_gadget_soft_disconnect() fails, dwc3_suspend_common() keeps going with the suspend, resulting in a period where the power domain is off, but the gadget driver remains connected. Within this time frame, invoking vbus_event_work() will cause an error as it attempts to access DWC3 registers for endpoint disabling after the power domain has been completely shut down. Abort the suspend sequence when dwc3_gadget_suspend() cannot halt the controller and proceeds with a soft connect. Fixes: 9f8a67b65a49 ("usb: dwc3: gadget: fix gadget suspend/resume") CC: stable(a)vger.kernel.org Signed-off-by: Kuen-Han Tsai <khtsai(a)google.com> --- Kernel panic - not syncing: Asynchronous SError Interrupt Workqueue: events vbus_event_work Call trace: dump_backtrace+0xf4/0x118 show_stack+0x18/0x24 dump_stack_lvl+0x60/0x7c dump_stack+0x18/0x3c panic+0x16c/0x390 nmi_panic+0xa4/0xa8 arm64_serror_panic+0x6c/0x94 do_serror+0xc4/0xd0 el1h_64_error_handler+0x34/0x48 el1h_64_error+0x68/0x6c readl+0x4c/0x8c __dwc3_gadget_ep_disable+0x48/0x230 dwc3_gadget_ep_disable+0x50/0xc0 usb_ep_disable+0x44/0xe4 ffs_func_eps_disable+0x64/0xc8 ffs_func_set_alt+0x74/0x368 ffs_func_disable+0x18/0x28 composite_disconnect+0x90/0xec configfs_composite_disconnect+0x64/0x88 usb_gadget_disconnect_locked+0xc0/0x168 vbus_event_work+0x3c/0x58 process_one_work+0x1e4/0x43c worker_thread+0x25c/0x430 kthread+0x104/0x1d4 ret_from_fork+0x10/0x20 --- Changelog: v4: - correct the mistake where semicolon was forgotten - return -EAGAIN upon dwc3_gadget_suspend() failure v3: - change the Fixes tag v2: - move declarations in separate lines - add the Fixes tag --- drivers/usb/dwc3/core.c | 9 +++++++-- drivers/usb/dwc3/gadget.c | 22 +++++++++------------- 2 files changed, 16 insertions(+), 15 deletions(-) diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 66a08b527165..f36bc933c55b 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -2388,6 +2388,7 @@ static int dwc3_suspend_common(struct dwc3 *dwc, pm_message_t msg) { u32 reg; int i; + int ret; if (!pm_runtime_suspended(dwc->dev) && !PMSG_IS_AUTO(msg)) { dwc->susphy_state = (dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0)) & @@ -2406,7 +2407,9 @@ static int dwc3_suspend_common(struct dwc3 *dwc, pm_message_t msg) case DWC3_GCTL_PRTCAP_DEVICE: if (pm_runtime_suspended(dwc->dev)) break; - dwc3_gadget_suspend(dwc); + ret = dwc3_gadget_suspend(dwc); + if (ret) + return ret; synchronize_irq(dwc->irq_gadget); dwc3_core_exit(dwc); break; @@ -2441,7 +2444,9 @@ static int dwc3_suspend_common(struct dwc3 *dwc, pm_message_t msg) break; if (dwc->current_otg_role == DWC3_OTG_ROLE_DEVICE) { - dwc3_gadget_suspend(dwc); + ret = dwc3_gadget_suspend(dwc); + if (ret) + return ret; synchronize_irq(dwc->irq_gadget); } diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 89a4dc8ebf94..630fd5f0ce97 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -4776,26 +4776,22 @@ int dwc3_gadget_suspend(struct dwc3 *dwc) int ret; ret = dwc3_gadget_soft_disconnect(dwc); - if (ret) - goto err; - - spin_lock_irqsave(&dwc->lock, flags); - if (dwc->gadget_driver) - dwc3_disconnect_gadget(dwc); - spin_unlock_irqrestore(&dwc->lock, flags); - - return 0; - -err: /* * Attempt to reset the controller's state. Likely no * communication can be established until the host * performs a port reset. */ - if (dwc->softconnect) + if (ret && dwc->softconnect) { dwc3_gadget_soft_connect(dwc); + return -EAGAIN; + } - return ret; + spin_lock_irqsave(&dwc->lock, flags); + if (dwc->gadget_driver) + dwc3_disconnect_gadget(dwc); + spin_unlock_irqrestore(&dwc->lock, flags); + + return 0; } int dwc3_gadget_resume(struct dwc3 *dwc) -- 2.49.0.604.gff1f9ca942-goog

3 months, 3 weeks

3
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[PATCH v5] usb: dwc3: Abort suspend on soft disconnect failure

by Kuen-Han Tsai

When dwc3_gadget_soft_disconnect() fails, dwc3_suspend_common() keeps going with the suspend, resulting in a period where the power domain is off, but the gadget driver remains connected. Within this time frame, invoking vbus_event_work() will cause an error as it attempts to access DWC3 registers for endpoint disabling after the power domain has been completely shut down. Abort the suspend sequence when dwc3_gadget_suspend() cannot halt the controller and proceeds with a soft connect. Fixes: 9f8a67b65a49 ("usb: dwc3: gadget: fix gadget suspend/resume") CC: stable(a)vger.kernel.org Acked-by: Thinh Nguyen <Thinh.Nguyen(a)synopsys.com> Signed-off-by: Kuen-Han Tsai <khtsai(a)google.com> --- Kernel panic - not syncing: Asynchronous SError Interrupt Workqueue: events vbus_event_work Call trace: dump_backtrace+0xf4/0x118 show_stack+0x18/0x24 dump_stack_lvl+0x60/0x7c dump_stack+0x18/0x3c panic+0x16c/0x390 nmi_panic+0xa4/0xa8 arm64_serror_panic+0x6c/0x94 do_serror+0xc4/0xd0 el1h_64_error_handler+0x34/0x48 el1h_64_error+0x68/0x6c readl+0x4c/0x8c __dwc3_gadget_ep_disable+0x48/0x230 dwc3_gadget_ep_disable+0x50/0xc0 usb_ep_disable+0x44/0xe4 ffs_func_eps_disable+0x64/0xc8 ffs_func_set_alt+0x74/0x368 ffs_func_disable+0x18/0x28 composite_disconnect+0x90/0xec configfs_composite_disconnect+0x64/0x88 usb_gadget_disconnect_locked+0xc0/0x168 vbus_event_work+0x3c/0x58 process_one_work+0x1e4/0x43c worker_thread+0x25c/0x430 kthread+0x104/0x1d4 ret_from_fork+0x10/0x20 --- Changelog: v5: - add the Acked-by tag v4: - correct the mistake where semicolon was forgotten - return -EAGAIN upon dwc3_gadget_suspend() failure v3: - change the Fixes tag v2: - move declarations in separate lines - add the Fixes tag --- drivers/usb/dwc3/core.c | 9 +++++++-- drivers/usb/dwc3/gadget.c | 22 +++++++++------------- 2 files changed, 16 insertions(+), 15 deletions(-) diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 66a08b527165..f36bc933c55b 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -2388,6 +2388,7 @@ static int dwc3_suspend_common(struct dwc3 *dwc, pm_message_t msg) { u32 reg; int i; + int ret; if (!pm_runtime_suspended(dwc->dev) && !PMSG_IS_AUTO(msg)) { dwc->susphy_state = (dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0)) & @@ -2406,7 +2407,9 @@ static int dwc3_suspend_common(struct dwc3 *dwc, pm_message_t msg) case DWC3_GCTL_PRTCAP_DEVICE: if (pm_runtime_suspended(dwc->dev)) break; - dwc3_gadget_suspend(dwc); + ret = dwc3_gadget_suspend(dwc); + if (ret) + return ret; synchronize_irq(dwc->irq_gadget); dwc3_core_exit(dwc); break; @@ -2441,7 +2444,9 @@ static int dwc3_suspend_common(struct dwc3 *dwc, pm_message_t msg) break; if (dwc->current_otg_role == DWC3_OTG_ROLE_DEVICE) { - dwc3_gadget_suspend(dwc); + ret = dwc3_gadget_suspend(dwc); + if (ret) + return ret; synchronize_irq(dwc->irq_gadget); } diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 321361288935..b6b63b530148 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -4821,26 +4821,22 @@ int dwc3_gadget_suspend(struct dwc3 *dwc) int ret; ret = dwc3_gadget_soft_disconnect(dwc); - if (ret) - goto err; - - spin_lock_irqsave(&dwc->lock, flags); - if (dwc->gadget_driver) - dwc3_disconnect_gadget(dwc); - spin_unlock_irqrestore(&dwc->lock, flags); - - return 0; - -err: /* * Attempt to reset the controller's state. Likely no * communication can be established until the host * performs a port reset. */ - if (dwc->softconnect) + if (ret && dwc->softconnect) { dwc3_gadget_soft_connect(dwc); + return -EAGAIN; + } - return ret; + spin_lock_irqsave(&dwc->lock, flags); + if (dwc->gadget_driver) + dwc3_disconnect_gadget(dwc); + spin_unlock_irqrestore(&dwc->lock, flags); + + return 0; } int dwc3_gadget_resume(struct dwc3 *dwc) -- 2.49.0.1164.gab81da1b16-goog

3 months, 3 weeks

1
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[PATCH] accel/ivpu: Use firmware names from upstream repo

by Jacek Lawrynowicz

Use FW names from linux-firmware repo instead of deprecated ones. Fixes: c140244f0cfb ("accel/ivpu: Add initial Panther Lake support") Cc: <stable(a)vger.kernel.org> # v6.13+ Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz(a)linux.intel.com> --- drivers/accel/ivpu/ivpu_fw.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/accel/ivpu/ivpu_fw.c b/drivers/accel/ivpu/ivpu_fw.c index ccaaf6c100c02..9db741695401e 100644 --- a/drivers/accel/ivpu/ivpu_fw.c +++ b/drivers/accel/ivpu/ivpu_fw.c @@ -55,18 +55,18 @@ static struct { int gen; const char *name; } fw_names[] = { - { IVPU_HW_IP_37XX, "vpu_37xx.bin" }, + { IVPU_HW_IP_37XX, "intel/vpu/vpu_37xx_v1.bin" }, { IVPU_HW_IP_37XX, "intel/vpu/vpu_37xx_v0.0.bin" }, - { IVPU_HW_IP_40XX, "vpu_40xx.bin" }, + { IVPU_HW_IP_40XX, "intel/vpu/vpu_40xx_v1.bin" }, { IVPU_HW_IP_40XX, "intel/vpu/vpu_40xx_v0.0.bin" }, - { IVPU_HW_IP_50XX, "vpu_50xx.bin" }, + { IVPU_HW_IP_50XX, "intel/vpu/vpu_50xx_v1.bin" }, { IVPU_HW_IP_50XX, "intel/vpu/vpu_50xx_v0.0.bin" }, }; /* Production fw_names from the table above */ -MODULE_FIRMWARE("intel/vpu/vpu_37xx_v0.0.bin"); -MODULE_FIRMWARE("intel/vpu/vpu_40xx_v0.0.bin"); -MODULE_FIRMWARE("intel/vpu/vpu_50xx_v0.0.bin"); +MODULE_FIRMWARE("intel/vpu/vpu_37xx_v1.bin"); +MODULE_FIRMWARE("intel/vpu/vpu_40xx_v1.bin"); +MODULE_FIRMWARE("intel/vpu/vpu_50xx_v1.bin"); static int ivpu_fw_request(struct ivpu_device *vdev) { -- 2.45.1

3 months, 3 weeks

3
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[PATCH] accel/ivpu: Improve buffer object logging

by Jacek Lawrynowicz

- Fix missing alloc log when drm_gem_handle_create() fails in drm_vma_node_allow() and open callback is not called - Add ivpu_bo->ctx_id that enables to log the actual context id instead of using 0 as default - Add couple WARNs and errors so we can catch more memory corruption issues Fixes: 37dee2a2f433 ("accel/ivpu: Improve buffer object debug logs") Cc: <stable(a)vger.kernel.org> # v6.8+ Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz(a)linux.intel.com> --- drivers/accel/ivpu/ivpu_gem.c | 25 +++++++++++++++++-------- drivers/accel/ivpu/ivpu_gem.h | 1 + 2 files changed, 18 insertions(+), 8 deletions(-) diff --git a/drivers/accel/ivpu/ivpu_gem.c b/drivers/accel/ivpu/ivpu_gem.c index e0d242d9f3e50..a76cbf4761f8c 100644 --- a/drivers/accel/ivpu/ivpu_gem.c +++ b/drivers/accel/ivpu/ivpu_gem.c @@ -28,7 +28,7 @@ static inline void ivpu_dbg_bo(struct ivpu_device *vdev, struct ivpu_bo *bo, con { ivpu_dbg(vdev, BO, "%6s: bo %8p vpu_addr %9llx size %8zu ctx %d has_pages %d dma_mapped %d mmu_mapped %d wc %d imported %d\n", - action, bo, bo->vpu_addr, ivpu_bo_size(bo), bo->ctx ? bo->ctx->id : 0, + action, bo, bo->vpu_addr, ivpu_bo_size(bo), bo->ctx_id, (bool)bo->base.pages, (bool)bo->base.sgt, bo->mmu_mapped, bo->base.map_wc, (bool)drm_gem_is_imported(&bo->base.base)); } @@ -94,8 +94,6 @@ ivpu_bo_alloc_vpu_addr(struct ivpu_bo *bo, struct ivpu_mmu_context *ctx, ivpu_err(vdev, "Failed to add BO to context %u: %d\n", ctx->id, ret); } - ivpu_dbg_bo(vdev, bo, "alloc"); - mutex_unlock(&bo->lock); drm_dev_exit(idx); @@ -215,7 +213,7 @@ struct drm_gem_object *ivpu_gem_prime_import(struct drm_device *dev, return ERR_PTR(ret); } -static struct ivpu_bo *ivpu_bo_alloc(struct ivpu_device *vdev, u64 size, u32 flags) +static struct ivpu_bo *ivpu_bo_alloc(struct ivpu_device *vdev, u64 size, u32 flags, u32 ctx_id) { struct drm_gem_shmem_object *shmem; struct ivpu_bo *bo; @@ -233,6 +231,7 @@ static struct ivpu_bo *ivpu_bo_alloc(struct ivpu_device *vdev, u64 size, u32 fla return ERR_CAST(shmem); bo = to_ivpu_bo(&shmem->base); + bo->ctx_id = ctx_id; bo->base.map_wc = flags & DRM_IVPU_BO_WC; bo->flags = flags; @@ -240,6 +239,8 @@ static struct ivpu_bo *ivpu_bo_alloc(struct ivpu_device *vdev, u64 size, u32 fla list_add_tail(&bo->bo_list_node, &vdev->bo_list); mutex_unlock(&vdev->bo_list_lock); + ivpu_dbg_bo(vdev, bo, "alloc"); + return bo; } @@ -278,8 +279,13 @@ static void ivpu_gem_bo_free(struct drm_gem_object *obj) mutex_unlock(&vdev->bo_list_lock); drm_WARN_ON(&vdev->drm, !dma_resv_test_signaled(obj->resv, DMA_RESV_USAGE_READ)); + drm_WARN_ON(&vdev->drm, ivpu_bo_size(bo) == 0); + drm_WARN_ON(&vdev->drm, bo->base.vaddr); ivpu_bo_unbind_locked(bo); + drm_WARN_ON(&vdev->drm, bo->mmu_mapped); + drm_WARN_ON(&vdev->drm, bo->ctx); + mutex_destroy(&bo->lock); drm_WARN_ON(obj->dev, refcount_read(&bo->base.pages_use_count) > 1); @@ -314,7 +320,7 @@ int ivpu_bo_create_ioctl(struct drm_device *dev, void *data, struct drm_file *fi if (size == 0) return -EINVAL; - bo = ivpu_bo_alloc(vdev, size, args->flags); + bo = ivpu_bo_alloc(vdev, size, args->flags, file_priv->ctx.id); if (IS_ERR(bo)) { ivpu_err(vdev, "Failed to allocate BO: %pe (ctx %u size %llu flags 0x%x)", bo, file_priv->ctx.id, args->size, args->flags); @@ -322,7 +328,10 @@ int ivpu_bo_create_ioctl(struct drm_device *dev, void *data, struct drm_file *fi } ret = drm_gem_handle_create(file, &bo->base.base, &args->handle); - if (!ret) + if (ret) + ivpu_err(vdev, "Failed to create handle for BO: %pe (ctx %u size %llu flags 0x%x)", + bo, file_priv->ctx.id, args->size, args->flags); + else args->vpu_addr = bo->vpu_addr; drm_gem_object_put(&bo->base.base); @@ -345,7 +354,7 @@ ivpu_bo_create(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx, drm_WARN_ON(&vdev->drm, !PAGE_ALIGNED(range->end)); drm_WARN_ON(&vdev->drm, !PAGE_ALIGNED(size)); - bo = ivpu_bo_alloc(vdev, size, flags); + bo = ivpu_bo_alloc(vdev, size, flags, IVPU_GLOBAL_CONTEXT_MMU_SSID); if (IS_ERR(bo)) { ivpu_err(vdev, "Failed to allocate BO: %pe (vpu_addr 0x%llx size %llu flags 0x%x)", bo, range->start, size, flags); @@ -452,7 +461,7 @@ static void ivpu_bo_print_info(struct ivpu_bo *bo, struct drm_printer *p) mutex_lock(&bo->lock); drm_printf(p, "%-9p %-3u 0x%-12llx %-10lu 0x%-8x %-4u", - bo, bo->ctx ? bo->ctx->id : 0, bo->vpu_addr, bo->base.base.size, + bo, bo->ctx_id, bo->vpu_addr, bo->base.base.size, bo->flags, kref_read(&bo->base.base.refcount)); if (bo->base.pages) diff --git a/drivers/accel/ivpu/ivpu_gem.h b/drivers/accel/ivpu/ivpu_gem.h index a222a9ec9d611..0c93118c85bd3 100644 --- a/drivers/accel/ivpu/ivpu_gem.h +++ b/drivers/accel/ivpu/ivpu_gem.h @@ -21,6 +21,7 @@ struct ivpu_bo { u64 vpu_addr; u32 flags; u32 job_status; /* Valid only for command buffer */ + u32 ctx_id; bool mmu_mapped; }; -- 2.45.1

3 months, 3 weeks

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[PATCH 2/5] mm/filemap: use filemap_end_dropbehind() for read invalidation

by Jens Axboe

Use the filemap_end_dropbehind() helper rather than calling folio_unmap_invalidate() directly, as we need to check if the folio has been redirtied or marked for writeback once the folio lock has been re-acquired. Cc: stable(a)vger.kernel.org Reported-by: Trond Myklebust <trondmy(a)hammerspace.com> Fixes: 8026e49bff9b ("mm/filemap: add read support for RWF_DONTCACHE") Link: https://lore.kernel.org/linux-fsdevel/ba8a9805331ce258a622feaca266b163db681… Signed-off-by: Jens Axboe <axboe(a)kernel.dk> --- mm/filemap.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/mm/filemap.c b/mm/filemap.c index 008a55290f34..6af6d8f2929c 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -2644,8 +2644,7 @@ static inline bool pos_same_folio(loff_t pos1, loff_t pos2, struct folio *folio) return (pos1 >> shift == pos2 >> shift); } -static void filemap_end_dropbehind_read(struct address_space *mapping, - struct folio *folio) +static void filemap_end_dropbehind_read(struct folio *folio) { if (!folio_test_dropbehind(folio)) return; @@ -2653,7 +2652,7 @@ static void filemap_end_dropbehind_read(struct address_space *mapping, return; if (folio_trylock(folio)) { if (folio_test_clear_dropbehind(folio)) - folio_unmap_invalidate(mapping, folio, 0); + filemap_end_dropbehind(folio); folio_unlock(folio); } } @@ -2774,7 +2773,7 @@ ssize_t filemap_read(struct kiocb *iocb, struct iov_iter *iter, for (i = 0; i < folio_batch_count(&fbatch); i++) { struct folio *folio = fbatch.folios[i]; - filemap_end_dropbehind_read(mapping, folio); + filemap_end_dropbehind_read(folio); folio_put(folio); } folio_batch_init(&fbatch); -- 2.49.0

3 months, 3 weeks

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[PATCH 1/5] mm/filemap: gate dropbehind invalidate on folio !dirty && !writeback

by Jens Axboe

It's possible for the folio to either get marked for writeback or redirtied. Add a helper, filemap_end_dropbehind(), which guards the folio_unmap_invalidate() call behind check for the folio being both non-dirty and not under writeback AFTER the folio lock has been acquired. Use this helper folio_end_dropbehind_write(). Cc: stable(a)vger.kernel.org Reported-by: Al Viro <viro(a)zeniv.linux.org.uk> Fixes: fb7d3bc41493 ("mm/filemap: drop streaming/uncached pages when writeback completes") Link: https://lore.kernel.org/linux-fsdevel/20250525083209.GS2023217@ZenIV/ Signed-off-by: Jens Axboe <axboe(a)kernel.dk> --- mm/filemap.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/mm/filemap.c b/mm/filemap.c index 7b90cbeb4a1a..008a55290f34 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -1589,6 +1589,16 @@ int folio_wait_private_2_killable(struct folio *folio) } EXPORT_SYMBOL(folio_wait_private_2_killable); +static void filemap_end_dropbehind(struct folio *folio) +{ + struct address_space *mapping = folio->mapping; + + VM_BUG_ON_FOLIO(!folio_test_locked(folio), folio); + + if (mapping && !folio_test_writeback(folio) && !folio_test_dirty(folio)) + folio_unmap_invalidate(mapping, folio, 0); +} + /* * If folio was marked as dropbehind, then pages should be dropped when writeback * completes. Do that now. If we fail, it's likely because of a big folio - @@ -1604,8 +1614,7 @@ static void folio_end_dropbehind_write(struct folio *folio) * invalidation in that case. */ if (in_task() && folio_trylock(folio)) { - if (folio->mapping) - folio_unmap_invalidate(folio->mapping, folio, 0); + filemap_end_dropbehind(folio); folio_unlock(folio); } } -- 2.49.0

3 months, 3 weeks

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FAILED: patch "[PATCH] can: kvaser_pciefd: Force IRQ edge in case of nested IRQ" failed to apply to 6.12-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.12-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.12.y git checkout FETCH_HEAD git cherry-pick -x 9176bd205ee0b2cd35073a9973c2a0936bcb579e # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025052430-pettiness-opponent-56cd@gregkh' --subject-prefix 'PATCH 6.12.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 9176bd205ee0b2cd35073a9973c2a0936bcb579e Mon Sep 17 00:00:00 2001 From: Axel Forsman <axfo(a)kvaser.com> Date: Tue, 20 May 2025 13:43:30 +0200 Subject: [PATCH] can: kvaser_pciefd: Force IRQ edge in case of nested IRQ Avoid the driver missing IRQs by temporarily masking IRQs in the ISR to enforce an edge even if a different IRQ is signalled before handled IRQs are cleared. Fixes: 48f827d4f48f ("can: kvaser_pciefd: Move reset of DMA RX buffers to the end of the ISR") Cc: stable(a)vger.kernel.org Signed-off-by: Axel Forsman <axfo(a)kvaser.com> Tested-by: Jimmy Assarsson <extja(a)kvaser.com> Reviewed-by: Jimmy Assarsson <extja(a)kvaser.com> Link: https://patch.msgid.link/20250520114332.8961-2-axfo@kvaser.com Signed-off-by: Marc Kleine-Budde <mkl(a)pengutronix.de> diff --git a/drivers/net/can/kvaser_pciefd.c b/drivers/net/can/kvaser_pciefd.c index cf0d51805272..9cc9176c2058 100644 --- a/drivers/net/can/kvaser_pciefd.c +++ b/drivers/net/can/kvaser_pciefd.c @@ -1646,24 +1646,28 @@ static int kvaser_pciefd_read_buffer(struct kvaser_pciefd *pcie, int dma_buf) return res; } -static u32 kvaser_pciefd_receive_irq(struct kvaser_pciefd *pcie) +static void kvaser_pciefd_receive_irq(struct kvaser_pciefd *pcie) { + void __iomem *srb_cmd_reg = KVASER_PCIEFD_SRB_ADDR(pcie) + KVASER_PCIEFD_SRB_CMD_REG; u32 irq = ioread32(KVASER_PCIEFD_SRB_ADDR(pcie) + KVASER_PCIEFD_SRB_IRQ_REG); - if (irq & KVASER_PCIEFD_SRB_IRQ_DPD0) - kvaser_pciefd_read_buffer(pcie, 0); + iowrite32(irq, KVASER_PCIEFD_SRB_ADDR(pcie) + KVASER_PCIEFD_SRB_IRQ_REG); - if (irq & KVASER_PCIEFD_SRB_IRQ_DPD1) + if (irq & KVASER_PCIEFD_SRB_IRQ_DPD0) { + kvaser_pciefd_read_buffer(pcie, 0); + iowrite32(KVASER_PCIEFD_SRB_CMD_RDB0, srb_cmd_reg); /* Rearm buffer */ + } + + if (irq & KVASER_PCIEFD_SRB_IRQ_DPD1) { kvaser_pciefd_read_buffer(pcie, 1); + iowrite32(KVASER_PCIEFD_SRB_CMD_RDB1, srb_cmd_reg); /* Rearm buffer */ + } if (unlikely(irq & KVASER_PCIEFD_SRB_IRQ_DOF0 || irq & KVASER_PCIEFD_SRB_IRQ_DOF1 || irq & KVASER_PCIEFD_SRB_IRQ_DUF0 || irq & KVASER_PCIEFD_SRB_IRQ_DUF1)) dev_err(&pcie->pci->dev, "DMA IRQ error 0x%08X\n", irq); - - iowrite32(irq, KVASER_PCIEFD_SRB_ADDR(pcie) + KVASER_PCIEFD_SRB_IRQ_REG); - return irq; } static void kvaser_pciefd_transmit_irq(struct kvaser_pciefd_can *can) @@ -1691,29 +1695,22 @@ static irqreturn_t kvaser_pciefd_irq_handler(int irq, void *dev) struct kvaser_pciefd *pcie = (struct kvaser_pciefd *)dev; const struct kvaser_pciefd_irq_mask *irq_mask = pcie->driver_data->irq_mask; u32 pci_irq = ioread32(KVASER_PCIEFD_PCI_IRQ_ADDR(pcie)); - u32 srb_irq = 0; - u32 srb_release = 0; int i; if (!(pci_irq & irq_mask->all)) return IRQ_NONE; + iowrite32(0, KVASER_PCIEFD_PCI_IEN_ADDR(pcie)); + if (pci_irq & irq_mask->kcan_rx0) - srb_irq = kvaser_pciefd_receive_irq(pcie); + kvaser_pciefd_receive_irq(pcie); for (i = 0; i < pcie->nr_channels; i++) { if (pci_irq & irq_mask->kcan_tx[i]) kvaser_pciefd_transmit_irq(pcie->can[i]); } - if (srb_irq & KVASER_PCIEFD_SRB_IRQ_DPD0) - srb_release |= KVASER_PCIEFD_SRB_CMD_RDB0; - - if (srb_irq & KVASER_PCIEFD_SRB_IRQ_DPD1) - srb_release |= KVASER_PCIEFD_SRB_CMD_RDB1; - - if (srb_release) - iowrite32(srb_release, KVASER_PCIEFD_SRB_ADDR(pcie) + KVASER_PCIEFD_SRB_CMD_REG); + iowrite32(irq_mask->all, KVASER_PCIEFD_PCI_IEN_ADDR(pcie)); return IRQ_HANDLED; } @@ -1733,13 +1730,22 @@ static void kvaser_pciefd_teardown_can_ctrls(struct kvaser_pciefd *pcie) } } +static void kvaser_pciefd_disable_irq_srcs(struct kvaser_pciefd *pcie) +{ + unsigned int i; + + /* Masking PCI_IRQ is insufficient as running ISR will unmask it */ + iowrite32(0, KVASER_PCIEFD_SRB_ADDR(pcie) + KVASER_PCIEFD_SRB_IEN_REG); + for (i = 0; i < pcie->nr_channels; ++i) + iowrite32(0, pcie->can[i]->reg_base + KVASER_PCIEFD_KCAN_IEN_REG); +} + static int kvaser_pciefd_probe(struct pci_dev *pdev, const struct pci_device_id *id) { int ret; struct kvaser_pciefd *pcie; const struct kvaser_pciefd_irq_mask *irq_mask; - void __iomem *irq_en_base; pcie = devm_kzalloc(&pdev->dev, sizeof(*pcie), GFP_KERNEL); if (!pcie) @@ -1805,8 +1811,7 @@ static int kvaser_pciefd_probe(struct pci_dev *pdev, KVASER_PCIEFD_SRB_ADDR(pcie) + KVASER_PCIEFD_SRB_IEN_REG); /* Enable PCI interrupts */ - irq_en_base = KVASER_PCIEFD_PCI_IEN_ADDR(pcie); - iowrite32(irq_mask->all, irq_en_base); + iowrite32(irq_mask->all, KVASER_PCIEFD_PCI_IEN_ADDR(pcie)); /* Ready the DMA buffers */ iowrite32(KVASER_PCIEFD_SRB_CMD_RDB0, KVASER_PCIEFD_SRB_ADDR(pcie) + KVASER_PCIEFD_SRB_CMD_REG); @@ -1820,8 +1825,7 @@ static int kvaser_pciefd_probe(struct pci_dev *pdev, return 0; err_free_irq: - /* Disable PCI interrupts */ - iowrite32(0, irq_en_base); + kvaser_pciefd_disable_irq_srcs(pcie); free_irq(pcie->pci->irq, pcie); err_pci_free_irq_vectors: @@ -1844,35 +1848,26 @@ static int kvaser_pciefd_probe(struct pci_dev *pdev, return ret; } -static void kvaser_pciefd_remove_all_ctrls(struct kvaser_pciefd *pcie) -{ - int i; - - for (i = 0; i < pcie->nr_channels; i++) { - struct kvaser_pciefd_can *can = pcie->can[i]; - - if (can) { - iowrite32(0, can->reg_base + KVASER_PCIEFD_KCAN_IEN_REG); - unregister_candev(can->can.dev); - timer_delete(&can->bec_poll_timer); - kvaser_pciefd_pwm_stop(can); - free_candev(can->can.dev); - } - } -} - static void kvaser_pciefd_remove(struct pci_dev *pdev) { struct kvaser_pciefd *pcie = pci_get_drvdata(pdev); + unsigned int i; - kvaser_pciefd_remove_all_ctrls(pcie); + for (i = 0; i < pcie->nr_channels; ++i) { + struct kvaser_pciefd_can *can = pcie->can[i]; - /* Disable interrupts */ - iowrite32(0, KVASER_PCIEFD_SRB_ADDR(pcie) + KVASER_PCIEFD_SRB_CTRL_REG); - iowrite32(0, KVASER_PCIEFD_PCI_IEN_ADDR(pcie)); + unregister_candev(can->can.dev); + timer_delete(&can->bec_poll_timer); + kvaser_pciefd_pwm_stop(can); + } + kvaser_pciefd_disable_irq_srcs(pcie); free_irq(pcie->pci->irq, pcie); pci_free_irq_vectors(pcie->pci); + + for (i = 0; i < pcie->nr_channels; ++i) + free_candev(pcie->can[i]->can.dev); + pci_iounmap(pdev, pcie->reg_base); pci_release_regions(pdev); pci_disable_device(pdev);

3 months, 3 weeks

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FAILED: patch "[PATCH] can: kvaser_pciefd: Force IRQ edge in case of nested IRQ" failed to apply to 6.14-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.14-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.14.y git checkout FETCH_HEAD git cherry-pick -x 9176bd205ee0b2cd35073a9973c2a0936bcb579e # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025052429-stadium-triage-c0af@gregkh' --subject-prefix 'PATCH 6.14.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 9176bd205ee0b2cd35073a9973c2a0936bcb579e Mon Sep 17 00:00:00 2001 From: Axel Forsman <axfo(a)kvaser.com> Date: Tue, 20 May 2025 13:43:30 +0200 Subject: [PATCH] can: kvaser_pciefd: Force IRQ edge in case of nested IRQ Avoid the driver missing IRQs by temporarily masking IRQs in the ISR to enforce an edge even if a different IRQ is signalled before handled IRQs are cleared. Fixes: 48f827d4f48f ("can: kvaser_pciefd: Move reset of DMA RX buffers to the end of the ISR") Cc: stable(a)vger.kernel.org Signed-off-by: Axel Forsman <axfo(a)kvaser.com> Tested-by: Jimmy Assarsson <extja(a)kvaser.com> Reviewed-by: Jimmy Assarsson <extja(a)kvaser.com> Link: https://patch.msgid.link/20250520114332.8961-2-axfo@kvaser.com Signed-off-by: Marc Kleine-Budde <mkl(a)pengutronix.de> diff --git a/drivers/net/can/kvaser_pciefd.c b/drivers/net/can/kvaser_pciefd.c index cf0d51805272..9cc9176c2058 100644 --- a/drivers/net/can/kvaser_pciefd.c +++ b/drivers/net/can/kvaser_pciefd.c @@ -1646,24 +1646,28 @@ static int kvaser_pciefd_read_buffer(struct kvaser_pciefd *pcie, int dma_buf) return res; } -static u32 kvaser_pciefd_receive_irq(struct kvaser_pciefd *pcie) +static void kvaser_pciefd_receive_irq(struct kvaser_pciefd *pcie) { + void __iomem *srb_cmd_reg = KVASER_PCIEFD_SRB_ADDR(pcie) + KVASER_PCIEFD_SRB_CMD_REG; u32 irq = ioread32(KVASER_PCIEFD_SRB_ADDR(pcie) + KVASER_PCIEFD_SRB_IRQ_REG); - if (irq & KVASER_PCIEFD_SRB_IRQ_DPD0) - kvaser_pciefd_read_buffer(pcie, 0); + iowrite32(irq, KVASER_PCIEFD_SRB_ADDR(pcie) + KVASER_PCIEFD_SRB_IRQ_REG); - if (irq & KVASER_PCIEFD_SRB_IRQ_DPD1) + if (irq & KVASER_PCIEFD_SRB_IRQ_DPD0) { + kvaser_pciefd_read_buffer(pcie, 0); + iowrite32(KVASER_PCIEFD_SRB_CMD_RDB0, srb_cmd_reg); /* Rearm buffer */ + } + + if (irq & KVASER_PCIEFD_SRB_IRQ_DPD1) { kvaser_pciefd_read_buffer(pcie, 1); + iowrite32(KVASER_PCIEFD_SRB_CMD_RDB1, srb_cmd_reg); /* Rearm buffer */ + } if (unlikely(irq & KVASER_PCIEFD_SRB_IRQ_DOF0 || irq & KVASER_PCIEFD_SRB_IRQ_DOF1 || irq & KVASER_PCIEFD_SRB_IRQ_DUF0 || irq & KVASER_PCIEFD_SRB_IRQ_DUF1)) dev_err(&pcie->pci->dev, "DMA IRQ error 0x%08X\n", irq); - - iowrite32(irq, KVASER_PCIEFD_SRB_ADDR(pcie) + KVASER_PCIEFD_SRB_IRQ_REG); - return irq; } static void kvaser_pciefd_transmit_irq(struct kvaser_pciefd_can *can) @@ -1691,29 +1695,22 @@ static irqreturn_t kvaser_pciefd_irq_handler(int irq, void *dev) struct kvaser_pciefd *pcie = (struct kvaser_pciefd *)dev; const struct kvaser_pciefd_irq_mask *irq_mask = pcie->driver_data->irq_mask; u32 pci_irq = ioread32(KVASER_PCIEFD_PCI_IRQ_ADDR(pcie)); - u32 srb_irq = 0; - u32 srb_release = 0; int i; if (!(pci_irq & irq_mask->all)) return IRQ_NONE; + iowrite32(0, KVASER_PCIEFD_PCI_IEN_ADDR(pcie)); + if (pci_irq & irq_mask->kcan_rx0) - srb_irq = kvaser_pciefd_receive_irq(pcie); + kvaser_pciefd_receive_irq(pcie); for (i = 0; i < pcie->nr_channels; i++) { if (pci_irq & irq_mask->kcan_tx[i]) kvaser_pciefd_transmit_irq(pcie->can[i]); } - if (srb_irq & KVASER_PCIEFD_SRB_IRQ_DPD0) - srb_release |= KVASER_PCIEFD_SRB_CMD_RDB0; - - if (srb_irq & KVASER_PCIEFD_SRB_IRQ_DPD1) - srb_release |= KVASER_PCIEFD_SRB_CMD_RDB1; - - if (srb_release) - iowrite32(srb_release, KVASER_PCIEFD_SRB_ADDR(pcie) + KVASER_PCIEFD_SRB_CMD_REG); + iowrite32(irq_mask->all, KVASER_PCIEFD_PCI_IEN_ADDR(pcie)); return IRQ_HANDLED; } @@ -1733,13 +1730,22 @@ static void kvaser_pciefd_teardown_can_ctrls(struct kvaser_pciefd *pcie) } } +static void kvaser_pciefd_disable_irq_srcs(struct kvaser_pciefd *pcie) +{ + unsigned int i; + + /* Masking PCI_IRQ is insufficient as running ISR will unmask it */ + iowrite32(0, KVASER_PCIEFD_SRB_ADDR(pcie) + KVASER_PCIEFD_SRB_IEN_REG); + for (i = 0; i < pcie->nr_channels; ++i) + iowrite32(0, pcie->can[i]->reg_base + KVASER_PCIEFD_KCAN_IEN_REG); +} + static int kvaser_pciefd_probe(struct pci_dev *pdev, const struct pci_device_id *id) { int ret; struct kvaser_pciefd *pcie; const struct kvaser_pciefd_irq_mask *irq_mask; - void __iomem *irq_en_base; pcie = devm_kzalloc(&pdev->dev, sizeof(*pcie), GFP_KERNEL); if (!pcie) @@ -1805,8 +1811,7 @@ static int kvaser_pciefd_probe(struct pci_dev *pdev, KVASER_PCIEFD_SRB_ADDR(pcie) + KVASER_PCIEFD_SRB_IEN_REG); /* Enable PCI interrupts */ - irq_en_base = KVASER_PCIEFD_PCI_IEN_ADDR(pcie); - iowrite32(irq_mask->all, irq_en_base); + iowrite32(irq_mask->all, KVASER_PCIEFD_PCI_IEN_ADDR(pcie)); /* Ready the DMA buffers */ iowrite32(KVASER_PCIEFD_SRB_CMD_RDB0, KVASER_PCIEFD_SRB_ADDR(pcie) + KVASER_PCIEFD_SRB_CMD_REG); @@ -1820,8 +1825,7 @@ static int kvaser_pciefd_probe(struct pci_dev *pdev, return 0; err_free_irq: - /* Disable PCI interrupts */ - iowrite32(0, irq_en_base); + kvaser_pciefd_disable_irq_srcs(pcie); free_irq(pcie->pci->irq, pcie); err_pci_free_irq_vectors: @@ -1844,35 +1848,26 @@ static int kvaser_pciefd_probe(struct pci_dev *pdev, return ret; } -static void kvaser_pciefd_remove_all_ctrls(struct kvaser_pciefd *pcie) -{ - int i; - - for (i = 0; i < pcie->nr_channels; i++) { - struct kvaser_pciefd_can *can = pcie->can[i]; - - if (can) { - iowrite32(0, can->reg_base + KVASER_PCIEFD_KCAN_IEN_REG); - unregister_candev(can->can.dev); - timer_delete(&can->bec_poll_timer); - kvaser_pciefd_pwm_stop(can); - free_candev(can->can.dev); - } - } -} - static void kvaser_pciefd_remove(struct pci_dev *pdev) { struct kvaser_pciefd *pcie = pci_get_drvdata(pdev); + unsigned int i; - kvaser_pciefd_remove_all_ctrls(pcie); + for (i = 0; i < pcie->nr_channels; ++i) { + struct kvaser_pciefd_can *can = pcie->can[i]; - /* Disable interrupts */ - iowrite32(0, KVASER_PCIEFD_SRB_ADDR(pcie) + KVASER_PCIEFD_SRB_CTRL_REG); - iowrite32(0, KVASER_PCIEFD_PCI_IEN_ADDR(pcie)); + unregister_candev(can->can.dev); + timer_delete(&can->bec_poll_timer); + kvaser_pciefd_pwm_stop(can); + } + kvaser_pciefd_disable_irq_srcs(pcie); free_irq(pcie->pci->irq, pcie); pci_free_irq_vectors(pcie->pci); + + for (i = 0; i < pcie->nr_channels; ++i) + free_candev(pcie->can[i]->can.dev); + pci_iounmap(pdev, pcie->reg_base); pci_release_regions(pdev); pci_disable_device(pdev);

3 months, 3 weeks

2
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[PATCH 1/6] pinctrl: airoha: fix wrong PHY LED mux value for LED1 GPIO46

by Christian Marangi

In all the MUX value for LED1 GPIO46 there is a Copy-Paste error where the MUX value is set to LED0_MODE_MASK instead of LED1_MODE_MASK. This wasn't notice as there were no board that made use of the secondary PHY LED but looking at the internal Documentation the actual value should be LED1_MODE_MASK similar to the other GPIO entry. Fix the wrong value to apply the correct MUX configuration. Cc: stable(a)vger.kernel.org Fixes: 1c8ace2d0725 ("pinctrl: airoha: Add support for EN7581 SoC") Signed-off-by: Christian Marangi <ansuelsmth(a)gmail.com> --- drivers/pinctrl/mediatek/pinctrl-airoha.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/pinctrl/mediatek/pinctrl-airoha.c b/drivers/pinctrl/mediatek/pinctrl-airoha.c index b97b28ebb37a..8ef7f88477aa 100644 --- a/drivers/pinctrl/mediatek/pinctrl-airoha.c +++ b/drivers/pinctrl/mediatek/pinctrl-airoha.c @@ -1752,8 +1752,8 @@ static const struct airoha_pinctrl_func_group phy1_led1_func_group[] = { .regmap[0] = { AIROHA_FUNC_MUX, REG_GPIO_2ND_I2C_MODE, - GPIO_LAN3_LED0_MODE_MASK, - GPIO_LAN3_LED0_MODE_MASK + GPIO_LAN3_LED1_MODE_MASK, + GPIO_LAN3_LED1_MODE_MASK }, .regmap[1] = { AIROHA_FUNC_MUX, @@ -1816,8 +1816,8 @@ static const struct airoha_pinctrl_func_group phy2_led1_func_group[] = { .regmap[0] = { AIROHA_FUNC_MUX, REG_GPIO_2ND_I2C_MODE, - GPIO_LAN3_LED0_MODE_MASK, - GPIO_LAN3_LED0_MODE_MASK + GPIO_LAN3_LED1_MODE_MASK, + GPIO_LAN3_LED1_MODE_MASK }, .regmap[1] = { AIROHA_FUNC_MUX, @@ -1880,8 +1880,8 @@ static const struct airoha_pinctrl_func_group phy3_led1_func_group[] = { .regmap[0] = { AIROHA_FUNC_MUX, REG_GPIO_2ND_I2C_MODE, - GPIO_LAN3_LED0_MODE_MASK, - GPIO_LAN3_LED0_MODE_MASK + GPIO_LAN3_LED1_MODE_MASK, + GPIO_LAN3_LED1_MODE_MASK }, .regmap[1] = { AIROHA_FUNC_MUX, @@ -1944,8 +1944,8 @@ static const struct airoha_pinctrl_func_group phy4_led1_func_group[] = { .regmap[0] = { AIROHA_FUNC_MUX, REG_GPIO_2ND_I2C_MODE, - GPIO_LAN3_LED0_MODE_MASK, - GPIO_LAN3_LED0_MODE_MASK + GPIO_LAN3_LED1_MODE_MASK, + GPIO_LAN3_LED1_MODE_MASK }, .regmap[1] = { AIROHA_FUNC_MUX, -- 2.48.1

3 months, 3 weeks

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Recall: [PATCH] selftests/vm: fix split huge page tests

by Wang, Guangming

Guangming.Wang(a)windriver.com would like to recall the message, "[PATCH] selftests/vm: fix split huge page tests".

3 months, 3 weeks

1
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[PATCH] selftests/vm: fix split huge page tests

by wndgwang4

Fix two inputs to check_anon_huge() and one if condition, so the tests work as expected. Link: https://lkml.kernel.org/r/20230306160907.16804-1-zi.yan@sent.com Fixes: c07c343cda8e ("selftests/vm: dedup THP helpers") Cc: stable(a)vger.kernel.org Signed-off-by: Zi Yan <ziy(a)nvidia.com> Reviewed-by: Zach O'Keefe <zokeefe(a)google.com> Tested-by: Zach O'Keefe <zokeefe(a)google.com> Acked-by: David Hildenbrand <david(a)redhat.com> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Signed-off-by: wndgwang4 <guangming.wang(a)windriver.com> --- tools/testing/selftests/vm/split_huge_page_test.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/vm/split_huge_page_test.c b/tools/testing/selftests/vm/split_huge_page_test.c index 76e1c36dd..b8558c7f1 100644 --- a/tools/testing/selftests/vm/split_huge_page_test.c +++ b/tools/testing/selftests/vm/split_huge_page_test.c @@ -106,7 +106,7 @@ void split_pmd_thp(void) for (i = 0; i < len; i++) one_page[i] = (char)i; - if (!check_huge_anon(one_page, 1, pmd_pagesize)) { + if (!check_huge_anon(one_page, 4, pmd_pagesize)) { printf("No THP is allocated\n"); exit(EXIT_FAILURE); } @@ -122,7 +122,7 @@ void split_pmd_thp(void) } - if (check_huge_anon(one_page, 0, pmd_pagesize)) { + if (!check_huge_anon(one_page, 0, pmd_pagesize)) { printf("Still AnonHugePages not split\n"); exit(EXIT_FAILURE); } @@ -169,7 +169,7 @@ void split_pte_mapped_thp(void) for (i = 0; i < len; i++) one_page[i] = (char)i; - if (!check_huge_anon(one_page, 1, pmd_pagesize)) { + if (!check_huge_anon(one_page, 4, pmd_pagesize)) { printf("No THP is allocated\n"); exit(EXIT_FAILURE); } -- 2.34.1

3 months, 3 weeks

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[PATCH 09/24] drm/amd/display: Correct non-OLED pre_T11_delay.

by Wayne Lin

From: Zhongwei Zhang <Zhongwei.Zhang(a)amd.com> [Why] Only OLED panels require non-zero pre_T11_delay defaultly. Others should be controlled by power sequence. [How] For non OLED, pre_T11_delay delay in code should be zero. Also post_T7_delay. Cc: Mario Limonciello <mario.limonciello(a)amd.com> Cc: Alex Deucher <alexander.deucher(a)amd.com> Cc: stable(a)vger.kernel.org Reviewed-by: Charlene Liu <charlene.liu(a)amd.com> Signed-off-by: Zhongwei Zhang <Zhongwei.Zhang(a)amd.com> Signed-off-by: Wayne Lin <wayne.lin(a)amd.com> --- drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c index 28f37437176e..a8174669bc49 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c @@ -953,8 +953,8 @@ void dce110_edp_backlight_control( struct dc_context *ctx = link->ctx; struct bp_transmitter_control cntl = { 0 }; uint8_t pwrseq_instance = 0; - unsigned int pre_T11_delay = OLED_PRE_T11_DELAY; - unsigned int post_T7_delay = OLED_POST_T7_DELAY; + unsigned int pre_T11_delay = (link->dpcd_sink_ext_caps.bits.oled ? OLED_PRE_T11_DELAY : 0); + unsigned int post_T7_delay = (link->dpcd_sink_ext_caps.bits.oled ? OLED_POST_T7_DELAY : 0); if (dal_graphics_object_id_get_connector_id(link->link_enc->connector) != CONNECTOR_ID_EDP) { @@ -1070,7 +1070,8 @@ void dce110_edp_backlight_control( if (!enable) { /*follow oem panel config's requirement*/ pre_T11_delay += link->panel_config.pps.extra_pre_t11_ms; - msleep(pre_T11_delay); + if (pre_T11_delay) + msleep(pre_T11_delay); } } -- 2.43.0

3 months, 3 weeks

1
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[PATCH 08/24] drm/amd/display: Call setup_stream_attribute after stream enc clk is ungated

by Wayne Lin

From: Michael Strauss <michael.strauss(a)amd.com> [WHY] If symclk RCO is enabled, stream encoder may not be receiving an ungated clock by the time we attempt to set stream attributes when setting dpms on. Since the clock is gated, register writes to the stream encoder fail. [HOW] Move set_stream_attribute call into enable_stream, just after the point where symclk32_se is ungated. Logically there is no need to set stream attributes as early as is currently done in link_set_dpms_on, so this should have no impact beyond the RCO fix. Cc: Mario Limonciello <mario.limonciello(a)amd.com> Cc: Alex Deucher <alexander.deucher(a)amd.com> Cc: stable(a)vger.kernel.org Reviewed-by: Wenjing Liu <wenjing.liu(a)amd.com> Signed-off-by: Michael Strauss <michael.strauss(a)amd.com> Signed-off-by: Wayne Lin <wayne.lin(a)amd.com> --- drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c | 1 + drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c | 2 ++ drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c | 2 ++ drivers/gpu/drm/amd/display/dc/link/link_dpms.c | 3 --- .../drm/amd/display/dc/virtual/virtual_stream_encoder.c | 7 +++++++ 5 files changed, 12 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c index 23bec5d25ed6..28f37437176e 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c @@ -671,6 +671,7 @@ void dce110_enable_stream(struct pipe_ctx *pipe_ctx) uint32_t early_control = 0; struct timing_generator *tg = pipe_ctx->stream_res.tg; + link_hwss->setup_stream_attribute(pipe_ctx); link_hwss->setup_stream_encoder(pipe_ctx); dc->hwss.update_info_frame(pipe_ctx); diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c index 4ea3b4ad179b..9f082a4c2610 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c @@ -3046,6 +3046,8 @@ void dcn20_enable_stream(struct pipe_ctx *pipe_ctx) link_enc->transmitter - TRANSMITTER_UNIPHY_A); } + link_hwss->setup_stream_attribute(pipe_ctx); + if (dc->res_pool->dccg->funcs->set_pixel_rate_div) dc->res_pool->dccg->funcs->set_pixel_rate_div( dc->res_pool->dccg, diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c index ea28c75fdace..82b13cc7a262 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c @@ -967,6 +967,8 @@ void dcn401_enable_stream(struct pipe_ctx *pipe_ctx) } } + link_hwss->setup_stream_attribute(pipe_ctx); + if (dc->res_pool->dccg->funcs->set_pixel_rate_div) { dc->res_pool->dccg->funcs->set_pixel_rate_div( dc->res_pool->dccg, diff --git a/drivers/gpu/drm/amd/display/dc/link/link_dpms.c b/drivers/gpu/drm/amd/display/dc/link/link_dpms.c index 273a3be6d593..f1b8f8f7b3a4 100644 --- a/drivers/gpu/drm/amd/display/dc/link/link_dpms.c +++ b/drivers/gpu/drm/amd/display/dc/link/link_dpms.c @@ -2458,7 +2458,6 @@ void link_set_dpms_on( struct link_encoder *link_enc = pipe_ctx->link_res.dio_link_enc; enum otg_out_mux_dest otg_out_dest = OUT_MUX_DIO; struct vpg *vpg = pipe_ctx->stream_res.stream_enc->vpg; - const struct link_hwss *link_hwss = get_link_hwss(link, &pipe_ctx->link_res); bool apply_edp_fast_boot_optimization = pipe_ctx->stream->apply_edp_fast_boot_optimization; @@ -2502,8 +2501,6 @@ void link_set_dpms_on( pipe_ctx->stream_res.tg->funcs->set_out_mux(pipe_ctx->stream_res.tg, otg_out_dest); } - link_hwss->setup_stream_attribute(pipe_ctx); - pipe_ctx->stream->apply_edp_fast_boot_optimization = false; // Enable VPG before building infoframe diff --git a/drivers/gpu/drm/amd/display/dc/virtual/virtual_stream_encoder.c b/drivers/gpu/drm/amd/display/dc/virtual/virtual_stream_encoder.c index ad088d70e189..6ffc74fc9dcd 100644 --- a/drivers/gpu/drm/amd/display/dc/virtual/virtual_stream_encoder.c +++ b/drivers/gpu/drm/amd/display/dc/virtual/virtual_stream_encoder.c @@ -44,6 +44,11 @@ static void virtual_stream_encoder_dvi_set_stream_attribute( struct dc_crtc_timing *crtc_timing, bool is_dual_link) {} +static void virtual_stream_encoder_lvds_set_stream_attribute( + struct stream_encoder *enc, + struct dc_crtc_timing *crtc_timing) +{} + static void virtual_stream_encoder_set_throttled_vcp_size( struct stream_encoder *enc, struct fixed31_32 avg_time_slots_per_mtp) @@ -115,6 +120,8 @@ static const struct stream_encoder_funcs virtual_str_enc_funcs = { virtual_stream_encoder_hdmi_set_stream_attribute, .dvi_set_stream_attribute = virtual_stream_encoder_dvi_set_stream_attribute, + .lvds_set_stream_attribute = + virtual_stream_encoder_lvds_set_stream_attribute, .set_throttled_vcp_size = virtual_stream_encoder_set_throttled_vcp_size, .update_hdmi_info_packets = -- 2.43.0

3 months, 3 weeks

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[PATCH] binder: fix yet another UAF in binder_devices

by Carlos Llamas

Commit e77aff5528a18 ("binderfs: fix use-after-free in binder_devices") addressed a use-after-free where devices could be released without first being removed from the binder_devices list. However, there is a similar path in binder_free_proc() that was missed: ================================================================== BUG: KASAN: slab-use-after-free in binder_remove_device+0xd4/0x100 Write of size 8 at addr ffff0000c773b900 by task umount/467 CPU: 12 UID: 0 PID: 467 Comm: umount Not tainted 6.15.0-rc7-00138-g57483a362741 #9 PREEMPT Hardware name: linux,dummy-virt (DT) Call trace: binder_remove_device+0xd4/0x100 binderfs_evict_inode+0x230/0x2f0 evict+0x25c/0x5dc iput+0x304/0x480 dentry_unlink_inode+0x208/0x46c __dentry_kill+0x154/0x530 [...] Allocated by task 463: __kmalloc_cache_noprof+0x13c/0x324 binderfs_binder_device_create.isra.0+0x138/0xa60 binder_ctl_ioctl+0x1ac/0x230 [...] Freed by task 215: kfree+0x184/0x31c binder_proc_dec_tmpref+0x33c/0x4ac binder_deferred_func+0xc10/0x1108 process_one_work+0x520/0xba4 [...] ================================================================== Call binder_remove_device() within binder_free_proc() to ensure the device is removed from the binder_devices list before being kfreed. Cc: stable(a)vger.kernel.org Fixes: 12d909cac1e1 ("binderfs: add new binder devices to binder_devices") Reported-by: syzbot+4af454407ec393de51d6(a)syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=4af454407ec393de51d6 Tested-by: syzbot+4af454407ec393de51d6(a)syzkaller.appspotmail.com Signed-off-by: Carlos Llamas <cmllamas(a)google.com> --- drivers/android/binder.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/android/binder.c b/drivers/android/binder.c index 682bbe4ad550..c463ca4a8fff 100644 --- a/drivers/android/binder.c +++ b/drivers/android/binder.c @@ -5241,6 +5241,7 @@ static void binder_free_proc(struct binder_proc *proc) __func__, proc->outstanding_txns); device = container_of(proc->context, struct binder_device, context); if (refcount_dec_and_test(&device->ref)) { + binder_remove_device(device); kfree(proc->context->name); kfree(device); } -- 2.49.0.1151.ga128411c76-goog

3 months, 3 weeks

3
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[PATCH net v5] net/mlx5: Add error handling in mlx5_query_nic_vport_node_guid()

by Wentao Liang

The function mlx5_query_nic_vport_node_guid() calls the function mlx5_query_nic_vport_context() but does not check its return value. A proper implementation can be found in mlx5_nic_vport_query_local_lb(). Add error handling for mlx5_query_nic_vport_context(). If it fails, free the out buffer via kvfree() and return error code. Fixes: 9efa75254593 ("net/mlx5_core: Introduce access functions to query vport RoCE fields") Cc: stable(a)vger.kernel.org # v4.5 Signed-off-by: Wentao Liang <vulab(a)iscas.ac.cn> --- v5: Remove error tag. v4: Fix code error. v3: Explicitly mention target branch. Change improper code. v2: Remove redundant reassignment. Fix typo error. drivers/net/ethernet/mellanox/mlx5/core/vport.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/vport.c b/drivers/net/ethernet/mellanox/mlx5/core/vport.c index 0d5f750faa45..c34cd9a1a79b 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/vport.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/vport.c @@ -465,19 +465,22 @@ int mlx5_query_nic_vport_node_guid(struct mlx5_core_dev *mdev, u64 *node_guid) { u32 *out; int outlen = MLX5_ST_SZ_BYTES(query_nic_vport_context_out); + int err; out = kvzalloc(outlen, GFP_KERNEL); if (!out) return -ENOMEM; - mlx5_query_nic_vport_context(mdev, 0, out); + err = mlx5_query_nic_vport_context(mdev, 0, out); + if (err) + goto out; *node_guid = MLX5_GET64(query_nic_vport_context_out, out, nic_vport_context.node_guid); - +out: kvfree(out); - return 0; + return err; } EXPORT_SYMBOL_GPL(mlx5_query_nic_vport_node_guid); -- 2.42.0.windows.2

3 months, 3 weeks

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+ fs-dax-fix-dont-skip-locked-entries-when-scanning-entries.patch added to mm-hotfixes-unstable branch

by Andrew Morton

The patch titled Subject: fs/dax: fix "don't skip locked entries when scanning entries" has been added to the -mm mm-hotfixes-unstable branch. Its filename is fs-dax-fix-dont-skip-locked-entries-when-scanning-entries.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patche… This patch will later appear in the mm-hotfixes-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Alistair Popple <apopple(a)nvidia.com> Subject: fs/dax: fix "don't skip locked entries when scanning entries" Date: Fri, 23 May 2025 14:37:49 +1000 Commit 6be3e21d25ca ("fs/dax: don't skip locked entries when scanning entries") introduced a new function, wait_entry_unlocked_exclusive(), which waits for the current entry to become unlocked without advancing the XArray iterator state. Waiting for the entry to become unlocked requires dropping the XArray lock. This requires calling xas_pause() prior to dropping the lock which leaves the xas in a suitable state for the next iteration. However this has the side-effect of advancing the xas state to the next index. Normally this isn't an issue because xas_for_each() contains code to detect this state and thus avoid advancing the index a second time on the next loop iteration. However both callers of and wait_entry_unlocked_exclusive() itself subsequently use the xas state to reload the entry. As xas_pause() updated the state to the next index this will cause the current entry which is being waited on to be skipped. This caused the following warning to fire intermittently when running xftest generic/068 on an XFS filesystem with FS DAX enabled: [ 35.067397] ------------[ cut here ]------------ [ 35.068229] WARNING: CPU: 21 PID: 1640 at mm/truncate.c:89 truncate_folio_batch_exceptionals+0xd8/0x1e0 [ 35.069717] Modules linked in: nd_pmem dax_pmem nd_btt nd_e820 libnvdimm [ 35.071006] CPU: 21 UID: 0 PID: 1640 Comm: fstest Not tainted 6.15.0-rc7+ #77 PREEMPT(voluntary) [ 35.072613] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/204 [ 35.074845] RIP: 0010:truncate_folio_batch_exceptionals+0xd8/0x1e0 [ 35.075962] Code: a1 00 00 00 f6 47 0d 20 0f 84 97 00 00 00 4c 63 e8 41 39 c4 7f 0b eb 61 49 83 c5 01 45 39 ec 7e 58 42 f68 [ 35.079522] RSP: 0018:ffffb04e426c7850 EFLAGS: 00010202 [ 35.080359] RAX: 0000000000000000 RBX: ffff9d21e3481908 RCX: ffffb04e426c77f4 [ 35.081477] RDX: ffffb04e426c79e8 RSI: ffffb04e426c79e0 RDI: ffff9d21e34816e8 [ 35.082590] RBP: ffffb04e426c79e0 R08: 0000000000000001 R09: 0000000000000003 [ 35.083733] R10: 0000000000000000 R11: 822b53c0f7a49868 R12: 000000000000001f [ 35.084850] R13: 0000000000000000 R14: ffffb04e426c78e8 R15: fffffffffffffffe [ 35.085953] FS: 00007f9134c87740(0000) GS:ffff9d22abba0000(0000) knlGS:0000000000000000 [ 35.087346] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.088244] CR2: 00007f9134c86000 CR3: 000000040afff000 CR4: 00000000000006f0 [ 35.089354] Call Trace: [ 35.089749] <TASK> [ 35.090168] truncate_inode_pages_range+0xfc/0x4d0 [ 35.091078] truncate_pagecache+0x47/0x60 [ 35.091735] xfs_setattr_size+0xc7/0x3e0 [ 35.092648] xfs_vn_setattr+0x1ea/0x270 [ 35.093437] notify_change+0x1f4/0x510 [ 35.094219] ? do_truncate+0x97/0xe0 [ 35.094879] do_truncate+0x97/0xe0 [ 35.095640] path_openat+0xabd/0xca0 [ 35.096278] do_filp_open+0xd7/0x190 [ 35.096860] do_sys_openat2+0x8a/0xe0 [ 35.097459] __x64_sys_openat+0x6d/0xa0 [ 35.098076] do_syscall_64+0xbb/0x1d0 [ 35.098647] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 35.099444] RIP: 0033:0x7f9134d81fc1 [ 35.100033] Code: 75 57 89 f0 25 00 00 41 00 3d 00 00 41 00 74 49 80 3d 2a 26 0e 00 00 74 6d 89 da 48 89 ee bf 9c ff ff ff5 [ 35.102993] RSP: 002b:00007ffcd41e0d10 EFLAGS: 00000202 ORIG_RAX: 0000000000000101 [ 35.104263] RAX: ffffffffffffffda RBX: 0000000000000242 RCX: 00007f9134d81fc1 [ 35.105452] RDX: 0000000000000242 RSI: 00007ffcd41e1200 RDI: 00000000ffffff9c [ 35.106663] RBP: 00007ffcd41e1200 R08: 0000000000000000 R09: 0000000000000064 [ 35.107923] R10: 00000000000001a4 R11: 0000000000000202 R12: 0000000000000066 [ 35.109112] R13: 0000000000100000 R14: 0000000000100000 R15: 0000000000000400 [ 35.110357] </TASK> [ 35.110769] irq event stamp: 8415587 [ 35.111486] hardirqs last enabled at (8415599): [<ffffffff8d74b562>] __up_console_sem+0x52/0x60 [ 35.113067] hardirqs last disabled at (8415610): [<ffffffff8d74b547>] __up_console_sem+0x37/0x60 [ 35.114575] softirqs last enabled at (8415300): [<ffffffff8d6ac625>] handle_softirqs+0x315/0x3f0 [ 35.115933] softirqs last disabled at (8415291): [<ffffffff8d6ac811>] __irq_exit_rcu+0xa1/0xc0 [ 35.117316] ---[ end trace 0000000000000000 ]--- Fix this by using xas_reset() instead, which is equivalent in implementation to xas_pause() but does not advance the XArray state. Link: https://lkml.kernel.org/r/20250523043749.1460780-1-apopple@nvidia.com Fixes: 6be3e21d25ca ("fs/dax: don't skip locked entries when scanning entries") Signed-off-by: Alistair Popple <apopple(a)nvidia.com> Reviewed-by: Jan Kara <jack(a)suse.cz> Reviewed-by: Dan Williams <dan.j.williams(a)intel.com> Cc: Alison Schofield <alison.schofield(a)intel.com> Cc: Matthew Wilcow (Oracle) <willy(a)infradead.org> Cc: Balbir Singh <balbirs(a)nvidia.com> Cc: "Darrick J. Wong" <djwong(a)kernel.org> Cc: Dave Chinner <david(a)fromorbit.com> Cc: David Hildenbrand <david(a)redhat.com> Cc: John Hubbard <jhubbard(a)nvidia.com> Cc: Ted Ts'o <tytso(a)mit.edu> Cc: Alexander Viro <viro(a)zeniv.linux.org.uk> Cc: Christian Brauner <brauner(a)kernel.org> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- fs/dax.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/fs/dax.c~fs-dax-fix-dont-skip-locked-entries-when-scanning-entries +++ a/fs/dax.c @@ -257,7 +257,7 @@ static void *wait_entry_unlocked_exclusi wq = dax_entry_waitqueue(xas, entry, &ewait.key); prepare_to_wait_exclusive(wq, &ewait.wait, TASK_UNINTERRUPTIBLE); - xas_pause(xas); + xas_reset(xas); xas_unlock_irq(xas); schedule(); finish_wait(wq, &ewait.wait); _ Patches currently in -mm which might be from apopple(a)nvidia.com are fs-dax-fix-dont-skip-locked-entries-when-scanning-entries.patch

3 months, 3 weeks

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+ mm-khugepaged-fix-race-with-folio-split-free-using-temporary-reference.patch added to mm-hotfixes-unstable branch

by Andrew Morton

The patch titled Subject: mm/khugepaged: fix race with folio split/free using temporary reference has been added to the -mm mm-hotfixes-unstable branch. Its filename is mm-khugepaged-fix-race-with-folio-split-free-using-temporary-reference.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patche… This patch will later appear in the mm-hotfixes-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Shivank Garg <shivankg(a)amd.com> Subject: mm/khugepaged: fix race with folio split/free using temporary reference Date: Mon, 26 May 2025 18:28:18 +0000 hpage_collapse_scan_file() calls is_refcount_suitable(), which in turn calls folio_mapcount(). folio_mapcount() checks folio_test_large() before proceeding to folio_large_mapcount(), but there is a race window where the folio may get split/freed between these checks, triggering: VM_WARN_ON_FOLIO(!folio_test_large(folio), folio) Take a temporary reference to the folio in hpage_collapse_scan_file(). This stabilizes the folio during refcount check and prevents incorrect large folio detection due to concurrent split/free. Use helper folio_expected_ref_count() + 1 to compare with folio_ref_count() instead of using is_refcount_suitable(). Link: https://lkml.kernel.org/r/20250526182818.37978-1-shivankg@amd.com Fixes: 05c5323b2a34 ("mm: track mapcount of large folios in single value") Signed-off-by: Shivank Garg <shivankg(a)amd.com> Reported-by: syzbot+2b99589e33edbe9475ca(a)syzkaller.appspotmail.com Closes: https://lore.kernel.org/all/6828470d.a70a0220.38f255.000c.GAE@google.com Suggested-by: David Hildenbrand <david(a)redhat.com> Acked-by: David Hildenbrand <david(a)redhat.com> Acked-by: Dev Jain <dev.jain(a)arm.com> Reviewed-by: Baolin Wang <baolin.wang(a)linux.alibaba.com> Cc: Bharata B Rao <bharata(a)amd.com> Cc: Fengwei Yin <fengwei.yin(a)intel.com> Cc: Liam Howlett <liam.howlett(a)oracle.com> Cc: Lorenzo Stoakes <lorenzo.stoakes(a)oracle.com> Cc: Mariano Pache <npache(a)redhat.com> Cc: Ryan Roberts <ryan.roberts(a)arm.com> Cc: Zi Yan <ziy(a)nvidia.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- mm/khugepaged.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) --- a/mm/khugepaged.c~mm-khugepaged-fix-race-with-folio-split-free-using-temporary-reference +++ a/mm/khugepaged.c @@ -2295,6 +2295,17 @@ static int hpage_collapse_scan_file(stru continue; } + if (!folio_try_get(folio)) { + xas_reset(&xas); + continue; + } + + if (unlikely(folio != xas_reload(&xas))) { + folio_put(folio); + xas_reset(&xas); + continue; + } + if (folio_order(folio) == HPAGE_PMD_ORDER && folio->index == start) { /* Maybe PMD-mapped */ @@ -2305,23 +2316,27 @@ static int hpage_collapse_scan_file(stru * it's safe to skip LRU and refcount checks before * returning. */ + folio_put(folio); break; } node = folio_nid(folio); if (hpage_collapse_scan_abort(node, cc)) { result = SCAN_SCAN_ABORT; + folio_put(folio); break; } cc->node_load[node]++; if (!folio_test_lru(folio)) { result = SCAN_PAGE_LRU; + folio_put(folio); break; } - if (!is_refcount_suitable(folio)) { + if (folio_expected_ref_count(folio) + 1 != folio_ref_count(folio)) { result = SCAN_PAGE_COUNT; + folio_put(folio); break; } @@ -2333,6 +2348,7 @@ static int hpage_collapse_scan_file(stru */ present += folio_nr_pages(folio); + folio_put(folio); if (need_resched()) { xas_pause(&xas); _ Patches currently in -mm which might be from shivankg(a)amd.com are mm-khugepaged-fix-race-with-folio-split-free-using-temporary-reference.patch mm-khugepaged-clean-up-refcount-check-using-folio_expected_ref_count.patch

3 months, 3 weeks

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[PATCH] block: Fix a deadlock related freezing zoned storage devices

by Bart Van Assche

blk_mq_freeze_queue() never terminates if one or more bios are on the plug list and if the block device driver defines a .submit_bio() method. This is the case for device mapper drivers. The deadlock happens because blk_mq_freeze_queue() waits for q_usage_counter to drop to zero, because a queue reference is held by bios on the plug list and because the __bio_queue_enter() call in __submit_bio() waits for the queue to be unfrozen. This patch fixes the following deadlock: Workqueue: dm-51_zwplugs blk_zone_wplug_bio_work Call trace: __schedule+0xb08/0x1160 schedule+0x48/0xc8 __bio_queue_enter+0xcc/0x1d0 __submit_bio+0x100/0x1b0 submit_bio_noacct_nocheck+0x230/0x49c blk_zone_wplug_bio_work+0x168/0x250 process_one_work+0x26c/0x65c worker_thread+0x33c/0x498 kthread+0x110/0x134 ret_from_fork+0x10/0x20 Call trace: __switch_to+0x230/0x410 __schedule+0xb08/0x1160 schedule+0x48/0xc8 blk_mq_freeze_queue_wait+0x78/0xb8 blk_mq_freeze_queue+0x90/0xa4 queue_attr_store+0x7c/0xf0 sysfs_kf_write+0x98/0xc8 kernfs_fop_write_iter+0x12c/0x1d4 vfs_write+0x340/0x3ac ksys_write+0x78/0xe8 Cc: Christoph Hellwig <hch(a)lst.de> Cc: Damien Le Moal <dlemoal(a)kernel.org> Cc: Yu Kuai <yukuai1(a)huaweicloud.com> Cc: Ming Lei <ming.lei(a)redhat.com> Cc: stable(a)vger.kernel.org Fixes: dd291d77cc90 ("block: Introduce zone write plugging") Signed-off-by: Bart Van Assche <bvanassche(a)acm.org> --- Changes compared to v1: fixed a race condition. Call bio_zone_write_plugging() only before submitting the bio and not after it has been submitted. block/blk-core.c | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) diff --git a/block/blk-core.c b/block/blk-core.c index b862c66018f2..713fb3865260 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -621,6 +621,13 @@ static inline blk_status_t blk_check_zone_append(struct request_queue *q, return BLK_STS_OK; } +/* + * Do not call bio_queue_enter() if the BIO_ZONE_WRITE_PLUGGING flag has been + * set because this causes blk_mq_freeze_queue() to deadlock if + * blk_zone_wplug_bio_work() submits a bio. Calling bio_queue_enter() for bios + * on the plug list is not necessary since a q_usage_counter reference is held + * while a bio is on the plug list. + */ static void __submit_bio(struct bio *bio) { /* If plug is not used, add new plug here to cache nsecs time. */ @@ -633,8 +640,12 @@ static void __submit_bio(struct bio *bio) if (!bdev_test_flag(bio->bi_bdev, BD_HAS_SUBMIT_BIO)) { blk_mq_submit_bio(bio); - } else if (likely(bio_queue_enter(bio) == 0)) { + } else { struct gendisk *disk = bio->bi_bdev->bd_disk; + bool zwp = bio_zone_write_plugging(bio); + + if (unlikely(!zwp && bio_queue_enter(bio) != 0)) + goto finish_plug; if ((bio->bi_opf & REQ_POLLED) && !(disk->queue->limits.features & BLK_FEAT_POLL)) { @@ -643,9 +654,12 @@ static void __submit_bio(struct bio *bio) } else { disk->fops->submit_bio(bio); } - blk_queue_exit(disk->queue); + + if (!zwp) + blk_queue_exit(disk->queue); } +finish_plug: blk_finish_plug(&plug); }

3 months, 3 weeks

5
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[PATCH 1/2] drm/buddy: Add public helper to dirty blocks

by Natalie Vock

Cleared blocks that are handed out to users after allocation cannot be presumed to remain cleared. Thus, allocators using drm_buddy need to dirty all blocks on the allocation success path. Provide a helper for them to use. Fixes: 96950929eb232 ("drm/buddy: Implement tracking clear page feature") Cc: stable(a)vger.kernel.org Signed-off-by: Natalie Vock <natalie.vock(a)gmx.de> --- include/drm/drm_buddy.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/include/drm/drm_buddy.h b/include/drm/drm_buddy.h index 9689a7c5dd36..48628ff1c24f 100644 --- a/include/drm/drm_buddy.h +++ b/include/drm/drm_buddy.h @@ -142,6 +142,12 @@ drm_buddy_block_size(struct drm_buddy *mm, return mm->chunk_size << drm_buddy_block_order(block); } +static inline void +drm_buddy_block_set_dirty(struct drm_buddy_block *block) +{ + block->header &= ~DRM_BUDDY_HEADER_CLEAR; +} + int drm_buddy_init(struct drm_buddy *mm, u64 size, u64 chunk_size); void drm_buddy_fini(struct drm_buddy *mm); -- 2.49.0

3 months, 3 weeks

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[PATCH v2] drm/xe/sched: stop re-submitting signalled jobs

by Matthew Auld

Customer is reporting a really subtle issue where we get random DMAR faults, hangs and other nasties for kernel migration jobs when stressing stuff like s2idle/s3/s4. The explosions seems to happen somewhere after resuming the system with splats looking something like: PM: suspend exit rfkill: input handler disabled xe 0000:00:02.0: [drm] GT0: Engine reset: engine_class=bcs, logical_mask: 0x2, guc_id=0 xe 0000:00:02.0: [drm] GT0: Timedout job: seqno=24496, lrc_seqno=24496, guc_id=0, flags=0x13 in no process [-1] xe 0000:00:02.0: [drm] GT0: Kernel-submitted job timed out The likely cause appears to be a race between suspend cancelling the worker that processes the free_job()'s, such that we still have pending jobs to be freed after the cancel. Following from this, on resume the pending_list will now contain at least one already complete job, but it looks like we call drm_sched_resubmit_jobs(), which will then call run_job() on everything still on the pending_list. But if the job was already complete, then all the resources tied to the job, like the bb itself, any memory that is being accessed, the iommu mappings etc. might be long gone since those are usually tied to the fence signalling. This scenario can be seen in ftrace when running a slightly modified xe_pm (kernel was only modified to inject artificial latency into free_job to make the race easier to hit): xe_sched_job_run: dev=0000:00:02.0, fence=0xffff888276cc8540, seqno=0, lrc_seqno=0, gt=0, guc_id=0, batch_addr=0x000000146910 ... xe_exec_queue_stop: dev=0000:00:02.0, 3:0x2, gt=0, width=1, guc_id=0, guc_state=0x0, flags=0x13 xe_exec_queue_stop: dev=0000:00:02.0, 3:0x2, gt=0, width=1, guc_id=1, guc_state=0x0, flags=0x4 xe_exec_queue_stop: dev=0000:00:02.0, 4:0x1, gt=1, width=1, guc_id=0, guc_state=0x0, flags=0x3 xe_exec_queue_stop: dev=0000:00:02.0, 1:0x1, gt=1, width=1, guc_id=1, guc_state=0x0, flags=0x3 xe_exec_queue_stop: dev=0000:00:02.0, 4:0x1, gt=1, width=1, guc_id=2, guc_state=0x0, flags=0x3 xe_exec_queue_resubmit: dev=0000:00:02.0, 3:0x2, gt=0, width=1, guc_id=0, guc_state=0x0, flags=0x13 xe_sched_job_run: dev=0000:00:02.0, fence=0xffff888276cc8540, seqno=0, lrc_seqno=0, gt=0, guc_id=0, batch_addr=0x000000146910 ... ..... xe_exec_queue_memory_cat_error: dev=0000:00:02.0, 3:0x2, gt=0, width=1, guc_id=0, guc_state=0x3, flags=0x13 So the job_run() is clearly triggered twice for the same job, even though the first must have already signalled to completion during suspend. We can also see a CAT error after the re-submit. To prevent this try to call xe_sched_stop() to forcefully remove anything on the pending_list that has already signalled, before we re-submit. v2: - Make sure to re-arm the fence callbacks with sched_start(). Link: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/4856 Fixes: dd08ebf6c352 ("drm/xe: Introduce a new DRM driver for Intel GPUs") Signed-off-by: Matthew Auld <matthew.auld(a)intel.com> Cc: Thomas Hellström <thomas.hellstrom(a)linux.intel.com> Cc: Matthew Brost <matthew.brost(a)intel.com> Cc: William Tseng <william.tseng(a)intel.com> Cc: <stable(a)vger.kernel.org> # v6.8+ --- drivers/gpu/drm/xe/xe_gpu_scheduler.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/xe/xe_gpu_scheduler.h b/drivers/gpu/drm/xe/xe_gpu_scheduler.h index c250ea773491..0c8fe0461df9 100644 --- a/drivers/gpu/drm/xe/xe_gpu_scheduler.h +++ b/drivers/gpu/drm/xe/xe_gpu_scheduler.h @@ -51,7 +51,9 @@ static inline void xe_sched_tdr_queue_imm(struct xe_gpu_scheduler *sched) static inline void xe_sched_resubmit_jobs(struct xe_gpu_scheduler *sched) { + drm_sched_stop(&sched->base, NULL); /* remove completed jobs */ drm_sched_resubmit_jobs(&sched->base); + drm_sched_start(&sched->base, 0); /* re-add fence callback for pending jobs */ } static inline bool -- 2.49.0

3 months, 3 weeks

2
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[PATCH 0/3] ASoC: codecs: wcd93xx: Few regulator supplies fixes

by Krzysztof Kozlowski

Fix cleanup paths in wcd9335 and wcd937x codec drivers. Best regards, Krzysztof --- Krzysztof Kozlowski (3): ASoC: codecs: wcd9335: Fix missing free of regulator supplies ASoC: codecs: wcd937x: Drop unused buck_supply ASoC: codecs: wcd9375: Fix double free of regulator supplies sound/soc/codecs/wcd9335.c | 25 +++++++------------------ sound/soc/codecs/wcd937x.c | 7 +------ 2 files changed, 8 insertions(+), 24 deletions(-) --- base-commit: 393d0c54cae31317deaa9043320c5fd9454deabc change-id: 20250526-b4-b4-asoc-wcd9395-vdd-px-fixes-0ce64398f9cc Best regards, -- Krzysztof Kozlowski <krzysztof.kozlowski(a)linaro.org>

3 months, 3 weeks

2
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Re: Patch "libbpf: Pass BPF token from find_prog_btf_id to BPF_BTF_GET_FD_BY_ID" has been added to the 6

by Pascal Ernster

[2025-05-22 23:08] Sasha Levin: > This is a note to let you know that I've just added the patch titled > > libbpf: Pass BPF token from find_prog_btf_id to BPF_BTF_GET_FD_BY_ID > > to the 6.14-stable tree which can be found at: > http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… > > The filename of the patch is: > libbpf-pass-bpf-token-from-find_prog_btf_id-to-bpf_b.patch > and it can be found in the queue-6.14 subdirectory. > > If you, or anyone else, feels it should not be added to the stable tree, > please let <stable(a)vger.kernel.org> know about it. > > > > commit 7a8beec7026564efe57ebf9c4c568ed0071f2e39 > Author: Mykyta Yatsenko <yatsenko(a)meta.com> > Date: Mon Mar 17 17:40:38 2025 +0000 > > libbpf: Pass BPF token from find_prog_btf_id to BPF_BTF_GET_FD_BY_ID > > [ Upstream commit 974ef9f0d23edc1a802691c585b84514b414a96d ] > > Pass BPF token from bpf_program__set_attach_target to > BPF_BTF_GET_FD_BY_ID bpf command. > When freplace program attaches to target program, it needs to look up > for BTF of the target, this may require BPF token, if, for example, > running from user namespace. > > Signed-off-by: Mykyta Yatsenko <yatsenko(a)meta.com> > Signed-off-by: Andrii Nakryiko <andrii(a)kernel.org> > Acked-by: Yonghong Song <yonghong.song(a)linux.dev> > Link: https://lore.kernel.org/bpf/20250317174039.161275-4-mykyta.yatsenko5@gmail.… > Signed-off-by: Sasha Levin <sashal(a)kernel.org> > > diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c > index 359f73ead6137..a9c3e33d0f8a9 100644 > --- a/tools/lib/bpf/bpf.c > +++ b/tools/lib/bpf/bpf.c > @@ -1097,7 +1097,7 @@ int bpf_map_get_fd_by_id(__u32 id) > int bpf_btf_get_fd_by_id_opts(__u32 id, > const struct bpf_get_fd_by_id_opts *opts) > { > - const size_t attr_sz = offsetofend(union bpf_attr, open_flags); > + const size_t attr_sz = offsetofend(union bpf_attr, fd_by_id_token_fd); > union bpf_attr attr; > int fd; > > @@ -1107,6 +1107,7 @@ int bpf_btf_get_fd_by_id_opts(__u32 id, > memset(&attr, 0, attr_sz); > attr.btf_id = id; > attr.open_flags = OPTS_GET(opts, open_flags, 0); > + attr.fd_by_id_token_fd = OPTS_GET(opts, token_fd, 0); > > fd = sys_bpf_fd(BPF_BTF_GET_FD_BY_ID, &attr, attr_sz); > return libbpf_err_errno(fd); > diff --git a/tools/lib/bpf/bpf.h b/tools/lib/bpf/bpf.h > index 435da95d20589..777627d33d257 100644 > --- a/tools/lib/bpf/bpf.h > +++ b/tools/lib/bpf/bpf.h > @@ -487,9 +487,10 @@ LIBBPF_API int bpf_link_get_next_id(__u32 start_id, __u32 *next_id); > struct bpf_get_fd_by_id_opts { > size_t sz; /* size of this struct for forward/backward compatibility */ > __u32 open_flags; /* permissions requested for the operation on fd */ > + __u32 token_fd; > size_t :0; > }; > -#define bpf_get_fd_by_id_opts__last_field open_flags > +#define bpf_get_fd_by_id_opts__last_field token_fd > > LIBBPF_API int bpf_prog_get_fd_by_id(__u32 id); > LIBBPF_API int bpf_prog_get_fd_by_id_opts(__u32 id, > diff --git a/tools/lib/bpf/btf.c b/tools/lib/bpf/btf.c > index 560b519f820e2..03cc7c46c16b5 100644 > --- a/tools/lib/bpf/btf.c > +++ b/tools/lib/bpf/btf.c > @@ -1619,12 +1619,18 @@ struct btf *btf_get_from_fd(int btf_fd, struct btf *base_btf) > return btf; > } > > -struct btf *btf__load_from_kernel_by_id_split(__u32 id, struct btf *base_btf) > +struct btf *btf_load_from_kernel(__u32 id, struct btf *base_btf, int token_fd) > { > struct btf *btf; > int btf_fd; > + LIBBPF_OPTS(bpf_get_fd_by_id_opts, opts); > + > + if (token_fd) { > + opts.open_flags |= BPF_F_TOKEN_FD; > + opts.token_fd = token_fd; > + } > > - btf_fd = bpf_btf_get_fd_by_id(id); > + btf_fd = bpf_btf_get_fd_by_id_opts(id, &opts); > if (btf_fd < 0) > return libbpf_err_ptr(-errno); > > @@ -1634,6 +1640,11 @@ struct btf *btf__load_from_kernel_by_id_split(__u32 id, struct btf *base_btf) > return libbpf_ptr(btf); > } > > +struct btf *btf__load_from_kernel_by_id_split(__u32 id, struct btf *base_btf) > +{ > + return btf_load_from_kernel(id, base_btf, 0); > +} > + > struct btf *btf__load_from_kernel_by_id(__u32 id) > { > return btf__load_from_kernel_by_id_split(id, NULL); > diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c > index 194809da51725..6b436ec872b0f 100644 > --- a/tools/lib/bpf/libbpf.c > +++ b/tools/lib/bpf/libbpf.c > @@ -9959,7 +9959,7 @@ int libbpf_find_vmlinux_btf_id(const char *name, > return libbpf_err(err); > } > > -static int libbpf_find_prog_btf_id(const char *name, __u32 attach_prog_fd) > +static int libbpf_find_prog_btf_id(const char *name, __u32 attach_prog_fd, int token_fd) > { > struct bpf_prog_info info; > __u32 info_len = sizeof(info); > @@ -9979,7 +9979,7 @@ static int libbpf_find_prog_btf_id(const char *name, __u32 attach_prog_fd) > pr_warn("The target program doesn't have BTF\n"); > goto out; > } > - btf = btf__load_from_kernel_by_id(info.btf_id); > + btf = btf_load_from_kernel(info.btf_id, NULL, token_fd); > err = libbpf_get_error(btf); > if (err) { > pr_warn("Failed to get BTF %d of the program: %s\n", info.btf_id, errstr(err)); > @@ -10062,7 +10062,7 @@ static int libbpf_find_attach_btf_id(struct bpf_program *prog, const char *attac > pr_warn("prog '%s': attach program FD is not set\n", prog->name); > return -EINVAL; > } > - err = libbpf_find_prog_btf_id(attach_name, attach_prog_fd); > + err = libbpf_find_prog_btf_id(attach_name, attach_prog_fd, prog->obj->token_fd); > if (err < 0) { > pr_warn("prog '%s': failed to find BPF program (FD %d) BTF ID for '%s': %s\n", > prog->name, attach_prog_fd, attach_name, errstr(err)); > @@ -12858,7 +12858,7 @@ struct bpf_link *bpf_program__attach_freplace(const struct bpf_program *prog, > if (target_fd) { > LIBBPF_OPTS(bpf_link_create_opts, target_opts); > > - btf_id = libbpf_find_prog_btf_id(attach_func_name, target_fd); > + btf_id = libbpf_find_prog_btf_id(attach_func_name, target_fd, prog->obj->token_fd); > if (btf_id < 0) > return libbpf_err_ptr(btf_id); > > @@ -13679,7 +13679,7 @@ int bpf_program__set_attach_target(struct bpf_program *prog, > > if (attach_prog_fd) { > btf_id = libbpf_find_prog_btf_id(attach_func_name, > - attach_prog_fd); > + attach_prog_fd, prog->obj->token_fd); > if (btf_id < 0) > return libbpf_err(btf_id); > } else { > diff --git a/tools/lib/bpf/libbpf_internal.h b/tools/lib/bpf/libbpf_internal.h > index de498e2dd6b0b..76669c73dcd16 100644 > --- a/tools/lib/bpf/libbpf_internal.h > +++ b/tools/lib/bpf/libbpf_internal.h > @@ -409,6 +409,7 @@ int libbpf__load_raw_btf(const char *raw_types, size_t types_len, > int btf_load_into_kernel(struct btf *btf, > char *log_buf, size_t log_sz, __u32 log_level, > int token_fd); > +struct btf *btf_load_from_kernel(__u32 id, struct btf *base_btf, int token_fd); > > struct btf *btf_get_from_fd(int btf_fd, struct btf *base_btf); > void btf_get_kernel_prefix_kind(enum bpf_attach_type attach_type, Hi, this patch breaks the build for Kernel 6.14.8 with all the other patches from https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tre… applied on top. A backported version of the same patch is also in queue-6.12, but I haven't tested if that one also breaks the build for Kernel 6.12.30. Regards Pascal

3 months, 3 weeks

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[PATCH v2 net 0/1] e1000e: fix heap overflow in e1000_set_eeprom()

by Mikael Wessel

v2: patch the correct write helper and add bounds-checking; v1 mistakenly guarded e1000_get_eeprom() (read path). --- Mikael Wessel (1): e1000e: fix heap overflow in e1000_set_eeprom() drivers/net/ethernet/intel/e1000e/ethtool.c | 3 +++ 1 file changed, 3 insertions(+) -- 2.48.1

3 months, 3 weeks

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Series for -Wunterminated-string-initialization in 6.14 and 6.12

by Nathan Chancellor

Hi Greg and Sasha, Please find attatched backports for 6.14 and 6.12 (which have -Wextra enabled by default) to turn off a new warning from -Wextra in GCC 15 and Clang 21, -Wunterminated-string-initialization, which is fatal when CONFIG_WERROR is enabled. Please let me know if there are any issues or questions. Cheers, Nathan

3 months, 3 weeks

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[SRU] [Noble] [PATCH 1/1] net: usb: usbnet: restore usb%d name exception for local mac addresses

by Jianlin Lv

From: Dominique Martinet <dominique.martinet(a)atmark-techno.com> BugLink: https://bugs.launchpad.net/bugs/2111592 commit 8a7d12d674ac ("net: usb: usbnet: fix name regression") assumed that local addresses always came from the kernel, but some devices hand out local mac addresses so we ended up with point-to-point devices with a mac set by the driver, renaming to eth%d when they used to be named usb%d. Userspace should not rely on device name, but for the sake of stability restore the local mac address check portion of the naming exception: point to point devices which either have no mac set by the driver or have a local mac handed out by the driver will keep the usb%d name. (some USB LTE modems are known to hand out a stable mac from the locally administered range; that mac appears to be random (different for mulitple devices) and can be reset with device-specific commands, so while such devices would benefit from getting a OUI reserved, we have to deal with these and might as well preserve the existing behavior to avoid breaking fragile openwrt configurations and such on upgrade.) Link: https://lkml.kernel.org/r/20241203130457.904325-1-asmadeus@codewreck.org Fixes: 8a7d12d674ac ("net: usb: usbnet: fix name regression") Cc: stable(a)vger.kernel.org Tested-by: Ahmed Naseef <naseefkm(a)gmail.com> Signed-off-by: Dominique Martinet <dominique.martinet(a)atmark-techno.com> Acked-by: Oliver Neukum <oneukum(a)suse.com> Link: https://patch.msgid.link/20250326-usbnet_rename-v2-1-57eb21fcff26@atmark-te… Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> (cherry picked from commit 2ea396448f26d0d7d66224cb56500a6789c7ed07) Signed-off-by: Jianlin Lv <iecedge(a)gmail.com> --- drivers/net/usb/usbnet.c | 21 +++++++++++++++------ 1 file changed, 15 insertions(+), 6 deletions(-) diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index 9f66c47dc58b..08cbc8e4b361 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -178,6 +178,17 @@ int usbnet_get_ethernet_addr(struct usbnet *dev, int iMACAddress) } EXPORT_SYMBOL_GPL(usbnet_get_ethernet_addr); +static bool usbnet_needs_usb_name_format(struct usbnet *dev, struct net_device *net) +{ + /* Point to point devices which don't have a real MAC address + * (or report a fake local one) have historically used the usb%d + * naming. Preserve this.. + */ + return (dev->driver_info->flags & FLAG_POINTTOPOINT) != 0 && + (is_zero_ether_addr(net->dev_addr) || + is_local_ether_addr(net->dev_addr)); +} + static void intr_complete (struct urb *urb) { struct usbnet *dev = urb->context; @@ -1766,13 +1777,11 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) if (status < 0) goto out1; - // heuristic: "usb%d" for links we know are two-host, - // else "eth%d" when there's reasonable doubt. userspace - // can rename the link if it knows better. + /* heuristic: rename to "eth%d" if we are not sure this link + * is two-host (these links keep "usb%d") + */ if ((dev->driver_info->flags & FLAG_ETHER) != 0 && - ((dev->driver_info->flags & FLAG_POINTTOPOINT) == 0 || - /* somebody touched it*/ - !is_zero_ether_addr(net->dev_addr))) + !usbnet_needs_usb_name_format(dev, net)) strscpy(net->name, "eth%d", sizeof(net->name)); /* WLAN devices should always be named "wlan%d" */ if ((dev->driver_info->flags & FLAG_WLAN) != 0) -- 2.34.1

3 months, 3 weeks

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Re: Patch "btrfs: properly limit inline data extent according to block size" has been added to the 6.12-stable tree

by Qu Wenruo

在 2025/5/23 07:31, Sasha Levin 写道: > This is a note to let you know that I've just added the patch titled > > btrfs: properly limit inline data extent according to block size > > to the 6.12-stable tree which can be found at: > http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… > > The filename of the patch is: > btrfs-properly-limit-inline-data-extent-according-to.patch > and it can be found in the queue-6.12 subdirectory. > > If you, or anyone else, feels it should not be added to the stable tree, > please let <stable(a)vger.kernel.org> know about it. Please drop this patch from all stable trees. This is only for a debug feature, 2K block size, and it will never be exposed to end users (only to allow people without a 64K page sized system to test subpage routine on x86_64). Thanks, Qu > > > > commit a5afc96d757771c992eb3af4629a562ec52ba1dc > Author: Qu Wenruo <wqu(a)suse.com> > Date: Tue Feb 25 14:30:44 2025 +1030 > > btrfs: properly limit inline data extent according to block size > > [ Upstream commit 23019d3e6617a8ec99a8d2f5947aa3dd8a74a1b8 ] > > Btrfs utilizes inline data extent for the following cases: > > - Regular small files > - Symlinks > > And "btrfs check" detects any file extents that are too large as an > error. > > It's not a problem for 4K block size, but for the incoming smaller > block sizes (2K), it can cause problems due to bad limits: > > - Non-compressed inline data extents > We do not allow a non-compressed inline data extent to be as large as > block size. > > - Symlinks > Currently the only real limit on symlinks are 4K, which can be larger > than 2K block size. > > These will result btrfs-check to report too large file extents. > > Fix it by adding proper size checks for the above cases. > > Signed-off-by: Qu Wenruo <wqu(a)suse.com> > Reviewed-by: David Sterba <dsterba(a)suse.com> > Signed-off-by: David Sterba <dsterba(a)suse.com> > Signed-off-by: Sasha Levin <sashal(a)kernel.org> > > diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c > index 9ce1270addb04..0da2611fb9c85 100644 > --- a/fs/btrfs/inode.c > +++ b/fs/btrfs/inode.c > @@ -623,6 +623,10 @@ static bool can_cow_file_range_inline(struct btrfs_inode *inode, > if (size > fs_info->sectorsize) > return false; > > + /* We do not allow a non-compressed extent to be as large as block size. */ > + if (data_len >= fs_info->sectorsize) > + return false; > + > /* We cannot exceed the maximum inline data size. */ > if (data_len > BTRFS_MAX_INLINE_DATA_SIZE(fs_info)) > return false; > @@ -8691,7 +8695,12 @@ static int btrfs_symlink(struct mnt_idmap *idmap, struct inode *dir, > struct extent_buffer *leaf; > > name_len = strlen(symname); > - if (name_len > BTRFS_MAX_INLINE_DATA_SIZE(fs_info)) > + /* > + * Symlinks utilize uncompressed inline extent data, which should not > + * reach block size. > + */ > + if (name_len > BTRFS_MAX_INLINE_DATA_SIZE(fs_info) || > + name_len >= fs_info->sectorsize) > return -ENAMETOOLONG; > > inode = new_inode(dir->i_sb);

3 months, 3 weeks

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Re: Patch "btrfs: zoned: exit btrfs_can_activate_zone if BTRFS_FS_NEED_ZONE_FINISH is set" has been added to the 6.14-stable tree

by Johannes Thumshirn

On 22.05.25 23:06, Sasha Levin wrote: > This is a note to let you know that I've just added the patch titled > > btrfs: zoned: exit btrfs_can_activate_zone if BTRFS_FS_NEED_ZONE_FINISH is set > > to the 6.14-stable tree which can be found at: > http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… > > The filename of the patch is: > btrfs-zoned-exit-btrfs_can_activate_zone-if-btrfs_fs.patch > and it can be found in the queue-6.14 subdirectory. > > If you, or anyone else, feels it should not be added to the stable tree, > please let <stable(a)vger.kernel.org> know about it. > Hey Sasha, this patch is just a readability cleanup, no reason to backport it. Thanks, Johannes > > > commit 1136d333d91088ecf2d5189367540a84e60449a0 > Author: Johannes Thumshirn <johannes.thumshirn(a)wdc.com> > Date: Wed Feb 12 15:05:00 2025 +0100 > > btrfs: zoned: exit btrfs_can_activate_zone if BTRFS_FS_NEED_ZONE_FINISH is set > > [ Upstream commit 26b38e28162ef4ceb1e0482299820fbbd7dbcd92 ] > > If BTRFS_FS_NEED_ZONE_FINISH is already set for the whole filesystem, exit > early in btrfs_can_activate_zone(). There's no need to check if > BTRFS_FS_NEED_ZONE_FINISH needs to be set if it is already set. > > Reviewed-by: Naohiro Aota <naohiro.aota(a)wdc.com> > Signed-off-by: Johannes Thumshirn <johannes.thumshirn(a)wdc.com> > Reviewed-by: David Sterba <dsterba(a)suse.com> > Signed-off-by: David Sterba <dsterba(a)suse.com> > Signed-off-by: Sasha Levin <sashal(a)kernel.org> > > diff --git a/fs/btrfs/zoned.c b/fs/btrfs/zoned.c > index f39656668967c..4a3e02b49f295 100644 > --- a/fs/btrfs/zoned.c > +++ b/fs/btrfs/zoned.c > @@ -2344,6 +2344,9 @@ bool btrfs_can_activate_zone(struct btrfs_fs_devices *fs_devices, u64 flags) > if (!btrfs_is_zoned(fs_info)) > return true; > > + if (test_bit(BTRFS_FS_NEED_ZONE_FINISH, &fs_info->flags)) > + return false; > + > /* Check if there is a device with active zones left */ > mutex_lock(&fs_info->chunk_mutex); > spin_lock(&fs_info->zone_active_bgs_lock); >

3 months, 3 weeks

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[SRU] [Noble] [PATCH 1/1] net: usb: usbnet: restore usb%d name exception for local mac addresses

by Jianlin Lv

From: Dominique Martinet <dominique.martinet(a)atmark-techno.com> commit 8a7d12d674ac ("net: usb: usbnet: fix name regression") assumed that local addresses always came from the kernel, but some devices hand out local mac addresses so we ended up with point-to-point devices with a mac set by the driver, renaming to eth%d when they used to be named usb%d. Userspace should not rely on device name, but for the sake of stability restore the local mac address check portion of the naming exception: point to point devices which either have no mac set by the driver or have a local mac handed out by the driver will keep the usb%d name. (some USB LTE modems are known to hand out a stable mac from the locally administered range; that mac appears to be random (different for mulitple devices) and can be reset with device-specific commands, so while such devices would benefit from getting a OUI reserved, we have to deal with these and might as well preserve the existing behavior to avoid breaking fragile openwrt configurations and such on upgrade.) Link: https://lkml.kernel.org/r/20241203130457.904325-1-asmadeus@codewreck.org Fixes: 8a7d12d674ac ("net: usb: usbnet: fix name regression") Cc: stable(a)vger.kernel.org Tested-by: Ahmed Naseef <naseefkm(a)gmail.com> Signed-off-by: Dominique Martinet <dominique.martinet(a)atmark-techno.com> Acked-by: Oliver Neukum <oneukum(a)suse.com> Link: https://patch.msgid.link/20250326-usbnet_rename-v2-1-57eb21fcff26@atmark-te… Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> (cherry picked from commit 2ea396448f26d0d7d66224cb56500a6789c7ed07) Signed-off-by: Jianlin Lv <iecedge(a)gmail.com> --- drivers/net/usb/usbnet.c | 21 +++++++++++++++------ 1 file changed, 15 insertions(+), 6 deletions(-) diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index 9f66c47dc58b..08cbc8e4b361 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -178,6 +178,17 @@ int usbnet_get_ethernet_addr(struct usbnet *dev, int iMACAddress) } EXPORT_SYMBOL_GPL(usbnet_get_ethernet_addr); +static bool usbnet_needs_usb_name_format(struct usbnet *dev, struct net_device *net) +{ + /* Point to point devices which don't have a real MAC address + * (or report a fake local one) have historically used the usb%d + * naming. Preserve this.. + */ + return (dev->driver_info->flags & FLAG_POINTTOPOINT) != 0 && + (is_zero_ether_addr(net->dev_addr) || + is_local_ether_addr(net->dev_addr)); +} + static void intr_complete (struct urb *urb) { struct usbnet *dev = urb->context; @@ -1766,13 +1777,11 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) if (status < 0) goto out1; - // heuristic: "usb%d" for links we know are two-host, - // else "eth%d" when there's reasonable doubt. userspace - // can rename the link if it knows better. + /* heuristic: rename to "eth%d" if we are not sure this link + * is two-host (these links keep "usb%d") + */ if ((dev->driver_info->flags & FLAG_ETHER) != 0 && - ((dev->driver_info->flags & FLAG_POINTTOPOINT) == 0 || - /* somebody touched it*/ - !is_zero_ether_addr(net->dev_addr))) + !usbnet_needs_usb_name_format(dev, net)) strscpy(net->name, "eth%d", sizeof(net->name)); /* WLAN devices should always be named "wlan%d" */ if ((dev->driver_info->flags & FLAG_WLAN) != 0) -- 2.34.1

3 months, 3 weeks

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About patch "remoteproc: qcom_wcnss: Handle platforms with only single power domain" in stable queue

by Matti Lehtimäki

Hi Patch "remoteproc: qcom_wcnss: Handle platforms with only single power domain" was added to stable queue for 6.14, 6.12, 6.6, 6.1 and 5.15 but the patch has an issue which was fixed in upstream commit 4ca45af0a56d00b86285d6fdd720dca3215059a7 (https://lore.kernel.org/linux-arm-msm/20250511234026.94735-1-matti.lehtimak…). Either the patch"remoteproc: qcom_wcnss: Handle platforms with only single power domain" should not be included in stable releases or the fix should be included as well. Adding "remoteproc: qcom_wcnss: Handle platforms with only single power domain" to stable releases is probably not really necessary anyway. Thanks, Matti

3 months, 3 weeks

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Re: Patch "bpf: Prevent unsafe access to the sock fields in the BPF timestamping callback" has been added to the 6.1-stable tree

by Jason Xing

On Fri, May 23, 2025 at 7:17 AM Sasha Levin <sashal(a)kernel.org> wrote: > > This is a note to let you know that I've just added the patch titled > > bpf: Prevent unsafe access to the sock fields in the BPF timestamping callback > > to the 6.1-stable tree which can be found at: > http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… > > The filename of the patch is: > bpf-prevent-unsafe-access-to-the-sock-fields-in-the-.patch > and it can be found in the queue-6.1 subdirectory. > > If you, or anyone else, feels it should not be added to the stable tree, > please let <stable(a)vger.kernel.org> know about it. Hi, I'm notified that this patch has been added into many branches, which is against my expectations. The BPF timestaping feature was implemented in 6.14 and the patch you are handling is just one of them. The function of this patch prevents unexpected bpf programs using this feature from triggering fatal problems. So, IMHO, we don't need this patch in all the older/stable branches:) Thanks, Jason > > > > commit 00b709040e0fdf5949dfbf02f38521e0b10943ac > Author: Jason Xing <kerneljasonxing(a)gmail.com> > Date: Thu Feb 20 15:29:31 2025 +0800 > > bpf: Prevent unsafe access to the sock fields in the BPF timestamping callback > > [ Upstream commit fd93eaffb3f977b23bc0a48d4c8616e654fcf133 ] > > The subsequent patch will implement BPF TX timestamping. It will > call the sockops BPF program without holding the sock lock. > > This breaks the current assumption that all sock ops programs will > hold the sock lock. The sock's fields of the uapi's bpf_sock_ops > requires this assumption. > > To address this, a new "u8 is_locked_tcp_sock;" field is added. This > patch sets it in the current sock_ops callbacks. The "is_fullsock" > test is then replaced by the "is_locked_tcp_sock" test during > sock_ops_convert_ctx_access(). > > The new TX timestamping callbacks added in the subsequent patch will > not have this set. This will prevent unsafe access from the new > timestamping callbacks. > > Potentially, we could allow read-only access. However, this would > require identifying which callback is read-safe-only and also requires > additional BPF instruction rewrites in the covert_ctx. Since the BPF > program can always read everything from a socket (e.g., by using > bpf_core_cast), this patch keeps it simple and disables all read > and write access to any socket fields through the bpf_sock_ops > UAPI from the new TX timestamping callback. > > Moreover, note that some of the fields in bpf_sock_ops are specific > to tcp_sock, and sock_ops currently only supports tcp_sock. In > the future, UDP timestamping will be added, which will also break > this assumption. The same idea used in this patch will be reused. > Considering that the current sock_ops only supports tcp_sock, the > variable is named is_locked_"tcp"_sock. > > Signed-off-by: Jason Xing <kerneljasonxing(a)gmail.com> > Signed-off-by: Martin KaFai Lau <martin.lau(a)kernel.org> > Link: https://patch.msgid.link/20250220072940.99994-4-kerneljasonxing@gmail.com > Signed-off-by: Sasha Levin <sashal(a)kernel.org> > > diff --git a/include/linux/filter.h b/include/linux/filter.h > index f3ef1a8965bb2..09cc8fb735f02 100644 > --- a/include/linux/filter.h > +++ b/include/linux/filter.h > @@ -1319,6 +1319,7 @@ struct bpf_sock_ops_kern { > void *skb_data_end; > u8 op; > u8 is_fullsock; > + u8 is_locked_tcp_sock; > u8 remaining_opt_len; > u64 temp; /* temp and everything after is not > * initialized to 0 before calling > diff --git a/include/net/tcp.h b/include/net/tcp.h > index 83e0362e3b721..63caa3181dfe6 100644 > --- a/include/net/tcp.h > +++ b/include/net/tcp.h > @@ -2409,6 +2409,7 @@ static inline int tcp_call_bpf(struct sock *sk, int op, u32 nargs, u32 *args) > memset(&sock_ops, 0, offsetof(struct bpf_sock_ops_kern, temp)); > if (sk_fullsock(sk)) { > sock_ops.is_fullsock = 1; > + sock_ops.is_locked_tcp_sock = 1; > sock_owned_by_me(sk); > } > > diff --git a/net/core/filter.c b/net/core/filter.c > index 497b41ac399da..5c9f3fcb957bb 100644 > --- a/net/core/filter.c > +++ b/net/core/filter.c > @@ -10240,10 +10240,10 @@ static u32 sock_ops_convert_ctx_access(enum bpf_access_type type, > } \ > *insn++ = BPF_LDX_MEM(BPF_FIELD_SIZEOF( \ > struct bpf_sock_ops_kern, \ > - is_fullsock), \ > + is_locked_tcp_sock), \ > fullsock_reg, si->src_reg, \ > offsetof(struct bpf_sock_ops_kern, \ > - is_fullsock)); \ > + is_locked_tcp_sock)); \ > *insn++ = BPF_JMP_IMM(BPF_JEQ, fullsock_reg, 0, jmp); \ > if (si->dst_reg == si->src_reg) \ > *insn++ = BPF_LDX_MEM(BPF_DW, reg, si->src_reg, \ > @@ -10328,10 +10328,10 @@ static u32 sock_ops_convert_ctx_access(enum bpf_access_type type, > temp)); \ > *insn++ = BPF_LDX_MEM(BPF_FIELD_SIZEOF( \ > struct bpf_sock_ops_kern, \ > - is_fullsock), \ > + is_locked_tcp_sock), \ > reg, si->dst_reg, \ > offsetof(struct bpf_sock_ops_kern, \ > - is_fullsock)); \ > + is_locked_tcp_sock)); \ > *insn++ = BPF_JMP_IMM(BPF_JEQ, reg, 0, 2); \ > *insn++ = BPF_LDX_MEM(BPF_FIELD_SIZEOF( \ > struct bpf_sock_ops_kern, sk),\ > diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c > index db1a99df29d55..16f4a41a068e4 100644 > --- a/net/ipv4/tcp_input.c > +++ b/net/ipv4/tcp_input.c > @@ -168,6 +168,7 @@ static void bpf_skops_parse_hdr(struct sock *sk, struct sk_buff *skb) > memset(&sock_ops, 0, offsetof(struct bpf_sock_ops_kern, temp)); > sock_ops.op = BPF_SOCK_OPS_PARSE_HDR_OPT_CB; > sock_ops.is_fullsock = 1; > + sock_ops.is_locked_tcp_sock = 1; > sock_ops.sk = sk; > bpf_skops_init_skb(&sock_ops, skb, tcp_hdrlen(skb)); > > @@ -184,6 +185,7 @@ static void bpf_skops_established(struct sock *sk, int bpf_op, > memset(&sock_ops, 0, offsetof(struct bpf_sock_ops_kern, temp)); > sock_ops.op = bpf_op; > sock_ops.is_fullsock = 1; > + sock_ops.is_locked_tcp_sock = 1; > sock_ops.sk = sk; > /* sk with TCP_REPAIR_ON does not have skb in tcp_finish_connect */ > if (skb) > diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c > index 40568365cdb3b..2f109f1968253 100644 > --- a/net/ipv4/tcp_output.c > +++ b/net/ipv4/tcp_output.c > @@ -509,6 +509,7 @@ static void bpf_skops_hdr_opt_len(struct sock *sk, struct sk_buff *skb, > sock_owned_by_me(sk); > > sock_ops.is_fullsock = 1; > + sock_ops.is_locked_tcp_sock = 1; > sock_ops.sk = sk; > } > > @@ -554,6 +555,7 @@ static void bpf_skops_write_hdr_opt(struct sock *sk, struct sk_buff *skb, > sock_owned_by_me(sk); > > sock_ops.is_fullsock = 1; > + sock_ops.is_locked_tcp_sock = 1; > sock_ops.sk = sk; > } >

3 months, 3 weeks

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[ANNOUNCE] AUTOSEL: Modern AI-powered Linux Kernel Stable Backport Classifier

by Sasha Levin

Hello folks, I'm pleased to announce the release of AUTOSEL, a complete rewrite of the stable kernel patch selection tool that Julia Lawall and I presented back in 2018[1]. Unlike the previous version that relied on word statistics and older neural network techniques, AUTOSEL leverages modern large language models and embedding technology to provide significantly more accurate recommendations. ## What is AUTOSEL? AUTOSEL automatically analyzes Linux kernel commits to determine whether they should be backported to stable kernel trees. It examines commit messages, code changes, and historical backporting patterns to make intelligent recommendations. This is a complete rewrite of the original tool[1], with several major improvements: 1. Uses large language models (Claude, OpenAI, NVIDIA models) for semantic understanding 2. Implements embeddings-based similar commit retrieval for better context 3. Provides detailed explanations for each recommendation 4. Supports batch processing for efficient analysis of multiple commits ## Key Features - Support for multiple LLM providers (Claude, OpenAI, NVIDIA) - Self-contained embeddings using Candle - Optional CUDA acceleration for faster analysis - Detailed explanations of backporting decisions - Extensive test coverage and validation ## Getting Started ``` git clone https://git.sr.ht/~sashal/autosel cd autosel cargo build --release ``` To analyze a specific commit: ``` ./target/release/autosel --kernel-repo ~/linux --models claude --commit <SHA> ``` For more information, see the README.md file in the repository. [1] https://lwn.net/Articles/764647/ -- Thanks, Sasha

3 months, 3 weeks

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stable-rc/queue/6.14: S390: devres.h:111:16: error: implicit declaration of function 'IOMEM_ERR_PTR' [-Werror=implicit-function-declaration]

by Naresh Kamboju

Regressions on S390 tinyconfig builds failing with gcc-13, gcc-8 and clang-20 and clang-nightly tool chains on the stable-rc/queue/6.14. Regression Analysis: - New regression? Yes - Reproducible? Yes Build regression: S390 tinyconfig devres.h 'devm_ioremap_resource' implicit declaration of function 'IOMEM_ERR_PTR' Reported-by: Linux Kernel Functional Testing <lkft(a)linaro.org> Build log: --------- In file included from include/linux/device.h:31, from include/linux/node.h:18, from include/linux/cpu.h:17, from arch/s390/kernel/traps.c:28: include/linux/device/devres.h: In function 'devm_ioremap_resource': include/linux/device/devres.h:111:16: error: implicit declaration of function 'IOMEM_ERR_PTR' [-Werror=implicit-function-declaration] 111 | return IOMEM_ERR_PTR(-EINVAL); | ^~~~~~~~~~~~~ ## Source * kernel version: 6.14.8 * git tree: https://kernel.googlesource.com/pub/scm/linux/kernel/git/stable/linux-stabl… * git sha: 3413aa4d097e291186719c26f341c52f8550e22c * git describe: v6.14.8-756-g3413aa4d097e * project details: https://qa-reports.linaro.org/lkft/linux-stable-rc-queues-queue_6.14/build/… * architecture: S390 * toolchain: gcc-8, gcc-13, clang-20, clang-nightly * config : tinyconfig * Build config: https://storage.tuxsuite.com/public/linaro/lkft/builds/2xbEAey3MY3M8lp7doND… * Build: https://storage.tuxsuite.com/public/linaro/lkft/builds/2xbEAey3MY3M8lp7doND… ## Boot log * Build log: https://qa-reports.linaro.org/lkft/linux-stable-rc-queues-queue_6.14/build/… * Build details: https://qa-reports.linaro.org/lkft/linux-stable-rc-queues-queue_6.14/build/… * Build history: https://qa-reports.linaro.org/lkft/linux-stable-rc-queues-queue_6.14/build/… ## Steps to reproduce - tuxmake --runtime podman --target-arch s390 --toolchain gcc-13 --kconfig tinyconfig -- Linaro LKFT https://lkft.linaro.org

3 months, 3 weeks

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[PATCH] ice: Fix a null pointer dereference in ice_copy_and_init_pkg()

by Haoxiang Li

Add check for the return value of devm_kmemdup() to prevent potential null pointer dereference. Fixes: 2ffd87d38d6b ("ice: Move support DDP code out of ice_flex_pipe.c") Cc: stable(a)vger.kernel.org Signed-off-by: Haoxiang Li <haoxiang_li2024(a)163.com> --- drivers/net/ethernet/intel/ice/ice_ddp.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/intel/ice/ice_ddp.c b/drivers/net/ethernet/intel/ice/ice_ddp.c index 59323c019544..351824dc3c62 100644 --- a/drivers/net/ethernet/intel/ice/ice_ddp.c +++ b/drivers/net/ethernet/intel/ice/ice_ddp.c @@ -2301,6 +2301,8 @@ enum ice_ddp_state ice_copy_and_init_pkg(struct ice_hw *hw, const u8 *buf, return ICE_DDP_PKG_ERR; buf_copy = devm_kmemdup(ice_hw_to_dev(hw), buf, len, GFP_KERNEL); + if (!buf_copy) + return ICE_DDP_PKG_ERR; state = ice_init_pkg(hw, buf_copy, len); if (!ice_is_init_pkg_successful(state)) { -- 2.25.1

3 months, 3 weeks

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[PATCH v2] riscv: hwprobe: Fix stale vDSO data for late-initialized keys at boot

by Jingwei Wang

The riscv_hwprobe vDSO data is populated by init_hwprobe_vdso_data(), an arch_initcall_sync. However, underlying data for some keys, like RISCV_HWPROBE_KEY_MISALIGNED_VECTOR_PERF, is determined asynchronously. Specifically, the per_cpu(vector_misaligned_access, cpu) values are set by the vec_check_unaligned_access_speed_all_cpus kthread. This kthread is spawned by an earlier arch_initcall (check_unaligned_access_all_cpus) and may complete its benchmark *after* init_hwprobe_vdso_data() has already populated the vDSO with default/stale values. So, refresh the vDSO data for specified keys (e.g., MISALIGNED_VECTOR_PERF) ensuring it reflects the final boot-time values. Test by comparing vDSO and syscall results for affected keys (e.g., MISALIGNED_VECTOR_PERF), which now match their final boot-time values. Reported-by: Tsukasa OI <research_trasio(a)irq.a4lg.com> Closes: https://lore.kernel.org/linux-riscv/760d637b-b13b-4518-b6bf-883d55d44e7f@ir… Fixes: e7c9d66e313b ("RISC-V: Report vector unaligned access speed hwprobe") Cc: stable(a)vger.kernel.org Signed-off-by: Jingwei Wang <wangjingwei(a)iscas.ac.cn> --- Changes in v2: - Addressed feedback from Yixun's regarding #ifdef CONFIG_MMU usage. - Updated commit message to provide a high-level summary. - Added Fixes tag for commit e7c9d66e313b. v1: https://lore.kernel.org/linux-riscv/20250521052754.185231-1-wangjingwei@isc… arch/riscv/include/asm/hwprobe.h | 6 ++++++ arch/riscv/kernel/sys_hwprobe.c | 16 ++++++++++++++++ arch/riscv/kernel/unaligned_access_speed.c | 2 +- 3 files changed, 23 insertions(+), 1 deletion(-) diff --git a/arch/riscv/include/asm/hwprobe.h b/arch/riscv/include/asm/hwprobe.h index 1f690fea0e03de6a..58dc847d86c7f2b0 100644 --- a/arch/riscv/include/asm/hwprobe.h +++ b/arch/riscv/include/asm/hwprobe.h @@ -40,4 +40,10 @@ static inline bool riscv_hwprobe_pair_cmp(struct riscv_hwprobe *pair, return pair->value == other_pair->value; } +#ifdef CONFIG_MMU +void riscv_hwprobe_vdso_sync(__s64 sync_key); +#else +static inline void riscv_hwprobe_vdso_sync(__s64 sync_key) { }; +#endif /* CONFIG_MMU */ + #endif diff --git a/arch/riscv/kernel/sys_hwprobe.c b/arch/riscv/kernel/sys_hwprobe.c index 249aec8594a92a80..2e3e612b7ac6fd57 100644 --- a/arch/riscv/kernel/sys_hwprobe.c +++ b/arch/riscv/kernel/sys_hwprobe.c @@ -17,6 +17,7 @@ #include <asm/vector.h> #include <asm/vendor_extensions/thead_hwprobe.h> #include <vdso/vsyscall.h> +#include <vdso/datapage.h> static void hwprobe_arch_id(struct riscv_hwprobe *pair, @@ -500,6 +501,21 @@ static int __init init_hwprobe_vdso_data(void) arch_initcall_sync(init_hwprobe_vdso_data); +void riscv_hwprobe_vdso_sync(__s64 sync_key) +{ + struct vdso_arch_data *avd = vdso_k_arch_data; + struct riscv_hwprobe pair; + + pair.key = sync_key; + hwprobe_one_pair(&pair, cpu_online_mask); + /* + * Update vDSO data for the given key. + * Currently for non-ID key updates (e.g. MISALIGNED_VECTOR_PERF), + * so 'homogeneous_cpus' is not re-evaluated here. + */ + avd->all_cpu_hwprobe_values[sync_key] = pair.value; +} + #endif /* CONFIG_MMU */ SYSCALL_DEFINE5(riscv_hwprobe, struct riscv_hwprobe __user *, pairs, diff --git a/arch/riscv/kernel/unaligned_access_speed.c b/arch/riscv/kernel/unaligned_access_speed.c index 585d2dcf2dab1ccb..81bc4997350acc87 100644 --- a/arch/riscv/kernel/unaligned_access_speed.c +++ b/arch/riscv/kernel/unaligned_access_speed.c @@ -375,7 +375,7 @@ static void check_vector_unaligned_access(struct work_struct *work __always_unus static int __init vec_check_unaligned_access_speed_all_cpus(void *unused __always_unused) { schedule_on_each_cpu(check_vector_unaligned_access); - + riscv_hwprobe_vdso_sync(RISCV_HWPROBE_KEY_MISALIGNED_VECTOR_PERF); return 0; } #else /* CONFIG_RISCV_PROBE_VECTOR_UNALIGNED_ACCESS */ -- 2.49.0

3 months, 3 weeks

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[PATCH] Revert "drm/i915/gem: Allow EXEC_CAPTURE on recoverable contexts on DG1"

by Joonas Lahtinen

This reverts commit d6e020819612a4a06207af858e0978be4d3e3140. The IS_DGFX check was put in place because error capture of buffer objects is expected to be broken on devices with VRAM. We seem to have already submitted the userspace fix to remove that flag, so lets just rely on that for DG1. Cc: stable(a)vger.kernel.org # v6.0+ Cc: Ville Syrjälä <ville.syrjala(a)linux.intel.com> Cc: Andi Shyti <andi.shyti(a)linux.intel.com> Cc: Matthew Auld <matthew.auld(a)intel.com> Cc: Thomas Hellström <thomas.hellstrom(a)linux.intel.com> Cc: Tvrtko Ursulin <tursulin(a)ursulin.net> Signed-off-by: Joonas Lahtinen <joonas.lahtinen(a)linux.intel.com> --- drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c index 7d44aadcd5a5..02c59808cbe4 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c @@ -2013,7 +2013,7 @@ static int eb_capture_stage(struct i915_execbuffer *eb) continue; if (i915_gem_context_is_recoverable(eb->gem_context) && - GRAPHICS_VER_FULL(eb->i915) > IP_VER(12, 10)) + (IS_DGFX(eb->i915) || GRAPHICS_VER_FULL(eb->i915) > IP_VER(12, 0))) return -EINVAL; for_each_batch_create_order(eb, j) { -- 2.49.0

3 months, 3 weeks

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[PATCH] Bluetooth: hci_qca: move the SoC type check to the right place

by Bartosz Golaszewski

From: Bartosz Golaszewski <bartosz.golaszewski(a)linaro.org> Commit 3d05fc82237a ("Bluetooth: qca: set power_ctrl_enabled on NULL returned by gpiod_get_optional()") accidentally changed the prevous behavior where power control would be disabled without the BT_EN GPIO only on QCA_WCN6750 and QCA_WCN6855 while also getting the error check wrong. We should treat every IS_ERR() return value from devm_gpiod_get_optional() as a reason to bail-out while we should only set power_ctrl_enabled to false on the two models mentioned above. While at it: use dev_err_probe() to save a LOC. Cc: stable(a)vger.kernel.org Fixes: 3d05fc82237a ("Bluetooth: qca: set power_ctrl_enabled on NULL returned by gpiod_get_optional()") Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski(a)linaro.org> --- drivers/bluetooth/hci_qca.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c index e00590ba24fdb..a2dc39c005f4f 100644 --- a/drivers/bluetooth/hci_qca.c +++ b/drivers/bluetooth/hci_qca.c @@ -2415,14 +2415,14 @@ static int qca_serdev_probe(struct serdev_device *serdev) qcadev->bt_en = devm_gpiod_get_optional(&serdev->dev, "enable", GPIOD_OUT_LOW); - if (IS_ERR(qcadev->bt_en) && - (data->soc_type == QCA_WCN6750 || - data->soc_type == QCA_WCN6855)) { - dev_err(&serdev->dev, "failed to acquire BT_EN gpio\n"); - return PTR_ERR(qcadev->bt_en); - } + if (IS_ERR(qcadev->bt_en)) + return dev_err_probe(&serdev->dev, + PTR_ERR(qcadev->bt_en), + "failed to acquire BT_EN gpio\n"); - if (!qcadev->bt_en) + if (!qcadev->bt_en && + (data->soc_type == QCA_WCN6750 || + data->soc_type == QCA_WCN6855)) power_ctrl_enabled = false; qcadev->sw_ctrl = devm_gpiod_get_optional(&serdev->dev, "swctrl", -- 2.48.1

3 months, 3 weeks

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[PATCH] Bluetooth: btusb: Add USB ID 3625:010b for TP-LINK Archer TX10UB Nano

by Zenm Chen

Add USB ID 3625:010b for TP-LINK Archer TX10UB Nano which is based on a Realtek RTL8851BU chip. The information in /sys/kernel/debug/usb/devices about the Bluetooth device is listed as the below: T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 9 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=3625 ProdID=010b Rev= 0.00 S: Manufacturer=Realtek S: Product=802.11ax WLAN Adapter S: SerialNumber=00e04c000001 C:* #Ifs= 3 Cfg#= 1 Atr=e0 MxPwr=500mA A: FirstIf#= 0 IfCount= 2 Cls=e0(wlcon) Sub=01 Prot=01 I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=1ms E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms I: If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms I: If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms I: If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms I: If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms I: If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms I: If#= 1 Alt= 6 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=03(O) Atr=01(Isoc) MxPS= 63 Ivl=1ms E: Ad=83(I) Atr=01(Isoc) MxPS= 63 Ivl=1ms I:* If#= 2 Alt= 0 #EPs= 8 Cls=ff(vend.) Sub=ff Prot=ff Driver=rtl8851bu E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=06(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=07(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=09(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=0a(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=0b(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=0c(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms Cc: stable(a)vger.kernel.org Signed-off-by: Zenm Chen <zenmchen(a)gmail.com> --- drivers/bluetooth/btusb.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 9ab661d2d1e6..3016ee9f2932 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -516,6 +516,10 @@ static const struct usb_device_id quirks_table[] = { { USB_DEVICE(0x0bda, 0xb850), .driver_info = BTUSB_REALTEK }, { USB_DEVICE(0x13d3, 0x3600), .driver_info = BTUSB_REALTEK }, + /* Realtek 8851BU Bluetooth devices */ + { USB_DEVICE(0x3625, 0x010b), .driver_info = BTUSB_REALTEK | + BTUSB_WIDEBAND_SPEECH }, + /* Realtek 8852AE Bluetooth devices */ { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK | BTUSB_WIDEBAND_SPEECH }, -- 2.49.0

3 months, 3 weeks

2
1
0 0

[PATCH] mm/hugetlb: fix a deadlock with pagecache_folio and hugetlb_fault_mutex_table

by Gavin Guo

The patch fixes a deadlock which can be triggered by an internal syzkaller [1] reproducer and captured by bpftrace script [2] and its log [3] in this scenario: Process 1 Process 2 --- --- hugetlb_fault mutex_lock(B) // take B filemap_lock_hugetlb_folio filemap_lock_folio __filemap_get_folio folio_lock(A) // take A hugetlb_wp mutex_unlock(B) // release B ... hugetlb_fault ... mutex_lock(B) // take B filemap_lock_hugetlb_folio filemap_lock_folio __filemap_get_folio folio_lock(A) // blocked unmap_ref_private ... mutex_lock(B) // retake and blocked This is a ABBA deadlock involving two locks: - Lock A: pagecache_folio lock - Lock B: hugetlb_fault_mutex_table lock The deadlock occurs between two processes as follows: 1. The first process (let’s call it Process 1) is handling a copy-on-write (COW) operation on a hugepage via hugetlb_wp. Due to insufficient reserved hugetlb pages, Process 1, owner of the reserved hugetlb page, attempts to unmap a hugepage owned by another process (non-owner) to satisfy the reservation. Before unmapping, Process 1 acquires lock B (hugetlb_fault_mutex_table lock) and then lock A (pagecache_folio lock). To proceed with the unmap, it releases Lock B but retains Lock A. After the unmap, Process 1 tries to reacquire Lock B. However, at this point, Lock B has already been acquired by another process. 2. The second process (Process 2) enters the hugetlb_fault handler during the unmap operation. It successfully acquires Lock B (hugetlb_fault_mutex_table lock) that was just released by Process 1, but then attempts to acquire Lock A (pagecache_folio lock), which is still held by Process 1. As a result, Process 1 (holding Lock A) is blocked waiting for Lock B (held by Process 2), while Process 2 (holding Lock B) is blocked waiting for Lock A (held by Process 1), constructing a ABBA deadlock scenario. The solution here is to unlock the pagecache_folio and provide the pagecache_folio_unlocked variable to the caller to have the visibility over the pagecache_folio status for subsequent handling. The error message: INFO: task repro_20250402_:13229 blocked for more than 64 seconds. Not tainted 6.15.0-rc3+ #24 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:repro_20250402_ state:D stack:25856 pid:13229 tgid:13228 ppid:3513 task_flags:0x400040 flags:0x00004006 Call Trace: <TASK> __schedule+0x1755/0x4f50 schedule+0x158/0x330 schedule_preempt_disabled+0x15/0x30 __mutex_lock+0x75f/0xeb0 hugetlb_wp+0xf88/0x3440 hugetlb_fault+0x14c8/0x2c30 trace_clock_x86_tsc+0x20/0x20 do_user_addr_fault+0x61d/0x1490 exc_page_fault+0x64/0x100 asm_exc_page_fault+0x26/0x30 RIP: 0010:__put_user_4+0xd/0x20 copy_process+0x1f4a/0x3d60 kernel_clone+0x210/0x8f0 __x64_sys_clone+0x18d/0x1f0 do_syscall_64+0x6a/0x120 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x41b26d </TASK> INFO: task repro_20250402_:13229 is blocked on a mutex likely owned by task repro_20250402_:13250. task:repro_20250402_ state:D stack:28288 pid:13250 tgid:13228 ppid:3513 task_flags:0x400040 flags:0x00000006 Call Trace: <TASK> __schedule+0x1755/0x4f50 schedule+0x158/0x330 io_schedule+0x92/0x110 folio_wait_bit_common+0x69a/0xba0 __filemap_get_folio+0x154/0xb70 hugetlb_fault+0xa50/0x2c30 trace_clock_x86_tsc+0x20/0x20 do_user_addr_fault+0xace/0x1490 exc_page_fault+0x64/0x100 asm_exc_page_fault+0x26/0x30 RIP: 0033:0x402619 </TASK> INFO: task repro_20250402_:13250 blocked for more than 65 seconds. Not tainted 6.15.0-rc3+ #24 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:repro_20250402_ state:D stack:28288 pid:13250 tgid:13228 ppid:3513 task_flags:0x400040 flags:0x00000006 Call Trace: <TASK> __schedule+0x1755/0x4f50 schedule+0x158/0x330 io_schedule+0x92/0x110 folio_wait_bit_common+0x69a/0xba0 __filemap_get_folio+0x154/0xb70 hugetlb_fault+0xa50/0x2c30 trace_clock_x86_tsc+0x20/0x20 do_user_addr_fault+0xace/0x1490 exc_page_fault+0x64/0x100 asm_exc_page_fault+0x26/0x30 RIP: 0033:0x402619 </TASK> Showing all locks held in the system: 1 lock held by khungtaskd/35: #0: ffffffff879a7440 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x30/0x180 2 locks held by repro_20250402_/13229: #0: ffff888017d801e0 (&mm->mmap_lock){++++}-{4:4}, at: lock_mm_and_find_vma+0x37/0x300 #1: ffff888000fec848 (&hugetlb_fault_mutex_table[i]){+.+.}-{4:4}, at: hugetlb_wp+0xf88/0x3440 3 locks held by repro_20250402_/13250: #0: ffff8880177f3d08 (vm_lock){++++}-{0:0}, at: do_user_addr_fault+0x41b/0x1490 #1: ffff888000fec848 (&hugetlb_fault_mutex_table[i]){+.+.}-{4:4}, at: hugetlb_fault+0x3b8/0x2c30 #2: ffff8880129500e8 (&resv_map->rw_sema){++++}-{4:4}, at: hugetlb_fault+0x494/0x2c30 Link: https://drive.google.com/file/d/1DVRnIW-vSayU5J1re9Ct_br3jJQU6Vpb/view?usp=… [1] Link: https://github.com/bboymimi/bpftracer/blob/master/scripts/hugetlb_lock_debu… [2] Link: https://drive.google.com/file/d/1bWq2-8o-BJAuhoHWX7zAhI6ggfhVzQUI/view?usp=… [3] Fixes: 40549ba8f8e0 ("hugetlb: use new vma_lock for pmd sharing synchronization") Cc: <stable(a)vger.kernel.org> Cc: Hugh Dickins <hughd(a)google.com> Cc: Florent Revest <revest(a)google.com> Cc: Gavin Shan <gshan(a)redhat.com> Signed-off-by: Gavin Guo <gavinguo(a)igalia.com> --- mm/hugetlb.c | 33 ++++++++++++++++++++++++++++----- 1 file changed, 28 insertions(+), 5 deletions(-) diff --git a/mm/hugetlb.c b/mm/hugetlb.c index e3e6ac991b9c..ad54a74aa563 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -6115,7 +6115,8 @@ static void unmap_ref_private(struct mm_struct *mm, struct vm_area_struct *vma, * Keep the pte_same checks anyway to make transition from the mutex easier. */ static vm_fault_t hugetlb_wp(struct folio *pagecache_folio, - struct vm_fault *vmf) + struct vm_fault *vmf, + bool *pagecache_folio_unlocked) { struct vm_area_struct *vma = vmf->vma; struct mm_struct *mm = vma->vm_mm; @@ -6212,6 +6213,22 @@ static vm_fault_t hugetlb_wp(struct folio *pagecache_folio, u32 hash; folio_put(old_folio); + /* + * The pagecache_folio needs to be unlocked to avoid + * deadlock and we won't re-lock it in hugetlb_wp(). The + * pagecache_folio could be truncated after being + * unlocked. So its state should not be relied + * subsequently. + * + * Setting *pagecache_folio_unlocked to true allows the + * caller to handle any necessary logic related to the + * folio's unlocked state. + */ + if (pagecache_folio) { + folio_unlock(pagecache_folio); + if (pagecache_folio_unlocked) + *pagecache_folio_unlocked = true; + } /* * Drop hugetlb_fault_mutex and vma_lock before * unmapping. unmapping needs to hold vma_lock @@ -6566,7 +6583,7 @@ static vm_fault_t hugetlb_no_page(struct address_space *mapping, hugetlb_count_add(pages_per_huge_page(h), mm); if ((vmf->flags & FAULT_FLAG_WRITE) && !(vma->vm_flags & VM_SHARED)) { /* Optimization, do the COW without a second fault */ - ret = hugetlb_wp(folio, vmf); + ret = hugetlb_wp(folio, vmf, NULL); } spin_unlock(vmf->ptl); @@ -6638,6 +6655,7 @@ vm_fault_t hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma, struct hstate *h = hstate_vma(vma); struct address_space *mapping; int need_wait_lock = 0; + bool pagecache_folio_unlocked = false; struct vm_fault vmf = { .vma = vma, .address = address & huge_page_mask(h), @@ -6792,7 +6810,8 @@ vm_fault_t hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma, if (flags & (FAULT_FLAG_WRITE|FAULT_FLAG_UNSHARE)) { if (!huge_pte_write(vmf.orig_pte)) { - ret = hugetlb_wp(pagecache_folio, &vmf); + ret = hugetlb_wp(pagecache_folio, &vmf, + &pagecache_folio_unlocked); goto out_put_page; } else if (likely(flags & FAULT_FLAG_WRITE)) { vmf.orig_pte = huge_pte_mkdirty(vmf.orig_pte); @@ -6809,10 +6828,14 @@ vm_fault_t hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma, out_ptl: spin_unlock(vmf.ptl); - if (pagecache_folio) { + /* + * If the pagecache_folio is unlocked in hugetlb_wp(), we skip + * folio_unlock() here. + */ + if (pagecache_folio && !pagecache_folio_unlocked) folio_unlock(pagecache_folio); + if (pagecache_folio) folio_put(pagecache_folio); - } out_mutex: hugetlb_vma_unlock_read(vma); base-commit: d76bb1ebb5587f66b0f8b8099bfbb44722bc08b3 -- 2.43.0

3 months, 3 weeks

5
13
0 0

Re: [PATCH v2] virtio_blk: Fix disk deletion hang on device surprise removal

by Michael S. Tsirkin

On Mon, May 26, 2025 at 02:40:33PM +0000, Parav Pandit wrote: > When the PCI device is surprise-removed, requests may not complete on > the device as the VQ is marked as broken. As a result, disk deletion > hangs. > > Fix it by aborting the requests when the VQ is broken. > > With this fix now fio completes swiftly. > An alternative of IO timeout has been considered, however > when the driver knows about unresponsive block device, swiftly clearing > them enables users and upper layers to react quickly. > > Verified with multiple device unplug iterations with pending requests in > virtio used ring and some pending with the device. > > Fixes: 43bb40c5b926 ("virtio_pci: Support surprise removal of virtio pci device") > Cc: stable(a)vger.kernel.org > Reported-by: Li RongQing <lirongqing(a)baidu.com> > Closes: https://lore.kernel.org/virtualization/c45dd68698cd47238c55fb73ca9b4741@bai… > Reviewed-by: Max Gurtovoy <mgurtovoy(a)nvidia.com> > Reviewed-by: Israel Rukshin <israelr(a)nvidia.com> > Signed-off-by: Parav Pandit <parav(a)nvidia.com> Thanks! I like the patch. Yes something to improve: > --- > v1->v2: > - Addressed comments from Stephan > - fixed spelling to 'waiting' > - Addressed comments from Michael > - Dropped checking broken vq from queue_rq() and queue_rqs() > because it is checked in lower layer routines in virtio core > > v0->v1: > - Fixed comments from Stefan to rename a cleanup function > - Improved logic for handling any outstanding requests > in bio layer > - improved cancel callback to sync with ongoing done() > --- > drivers/block/virtio_blk.c | 83 ++++++++++++++++++++++++++++++++++++++ > 1 file changed, 83 insertions(+) > > diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c > index 7cffea01d868..12f31e6c00cb 100644 > --- a/drivers/block/virtio_blk.c > +++ b/drivers/block/virtio_blk.c > @@ -1554,6 +1554,87 @@ static int virtblk_probe(struct virtio_device *vdev) > return err; > } > > +static bool virtblk_request_cancel(struct request *rq, void *data) > +{ > + struct virtblk_req *vbr = blk_mq_rq_to_pdu(rq); > + struct virtio_blk *vblk = data; > + struct virtio_blk_vq *vq; > + unsigned long flags; > + > + vq = &vblk->vqs[rq->mq_hctx->queue_num]; > + > + spin_lock_irqsave(&vq->lock, flags); > + > + vbr->in_hdr.status = VIRTIO_BLK_S_IOERR; My undertanding is that this is only safe to call when device is not accessing the vq anymore? Right? otherwise device can overwrite the status? But I am not sure I understand what guarantees this. Is there an assumption here that if vq is broken and we are on remove path then device is already gone? It seems to hold but I'd prefer something that makes this guarantee at the API level. > + if (blk_mq_request_started(rq) && !blk_mq_request_completed(rq)) > + blk_mq_complete_request(rq); > + > + spin_unlock_irqrestore(&vq->lock, flags); > + return true; > +} > + > +static void virtblk_broken_device_cleanup(struct virtio_blk *vblk) > +{ > + struct request_queue *q = vblk->disk->queue; > + > + if (!virtqueue_is_broken(vblk->vqs[0].vq)) > + return; can marking vqs broken be in progress such that 0 is already broken but another one is not, yet? if not pls add a comment explainging why. > + > + /* Start freezing the queue, so that new requests keeps waiting at the > + * door of bio_queue_enter(). We cannot fully freeze the queue because > + * freezed queue is an empty queue and there are pending requests, so > + * only start freezing it. > + */ > + blk_freeze_queue_start(q); > + > + /* When quiescing completes, all ongoing dispatches have completed > + * and no new dispatch will happen towards the driver. > + * This ensures that later when cancel is attempted, then are not > + * getting processed by the queue_rq() or queue_rqs() handlers. > + */ > + blk_mq_quiesce_queue(q); > + > + /* > + * Synchronize with any ongoing VQ callbacks, effectively quiescing > + * the device and preventing it from completing further requests > + * to the block layer. Any outstanding, incomplete requests will be > + * completed by virtblk_request_cancel(). I think what you really mean is: finish processing in callbacks, that might have started before vqs were marked as broken. > + */ > + virtio_synchronize_cbs(vblk->vdev); > + > + /* At this point, no new requests can enter the queue_rq() and > + * completion routine will not complete any new requests either for the > + * broken vq. Hence, it is safe to cancel all requests which are > + * started. > + */ > + blk_mq_tagset_busy_iter(&vblk->tag_set, virtblk_request_cancel, vblk); > + blk_mq_tagset_wait_completed_request(&vblk->tag_set); > + > + /* All pending requests are cleaned up. Time to resume so that disk > + * deletion can be smooth. Start the HW queues so that when queue is > + * unquiesced requests can again enter the driver. > + */ > + blk_mq_start_stopped_hw_queues(q, true); > + > + /* Unquiescing will trigger dispatching any pending requests to the > + * driver which has crossed bio_queue_enter() to the driver. > + */ > + blk_mq_unquiesce_queue(q); > + > + /* Wait for all pending dispatches to terminate which may have been > + * initiated after unquiescing. > + */ > + blk_mq_freeze_queue_wait(q); > + > + /* Mark the disk dead so that once queue unfreeze, the requests > + * waiting at the door of bio_queue_enter() can be aborted right away. > + */ > + blk_mark_disk_dead(vblk->disk); > + > + /* Unfreeze the queue so that any waiting requests will be aborted. */ > + blk_mq_unfreeze_queue_nomemrestore(q); > +} > + > static void virtblk_remove(struct virtio_device *vdev) > { > struct virtio_blk *vblk = vdev->priv; > @@ -1561,6 +1642,8 @@ static void virtblk_remove(struct virtio_device *vdev) > /* Make sure no work handler is accessing the device. */ > flush_work(&vblk->config_work); > > + virtblk_broken_device_cleanup(vblk); > + > del_gendisk(vblk->disk); > blk_mq_free_tag_set(&vblk->tag_set); > > -- > 2.34.1

3 months, 3 weeks

2
2
0 0

[PATCH] drm/amd/display: Add null pointer check for get_first_active_display()

by Wentao Liang

The function mod_hdcp_hdcp1_enable_encryption() calls the function get_first_active_display(), but does not check its return value. The return value is a null pointer if the display list is empty. This will lead to a null pointer dereference in mod_hdcp_hdcp2_enable_encryption(). Add a null pointer check for get_first_active_display() and return MOD_HDCP_STATUS_DISPLAY_NOT_FOUND if the function return null. Fixes: 2deade5ede56 ("drm/amd/display: Remove hdcp display state with mst fix") Cc: stable(a)vger.kernel.org # v5.8 Signed-off-by: Wentao Liang <vulab(a)iscas.ac.cn> --- drivers/gpu/drm/amd/display/modules/hdcp/hdcp_psp.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp_psp.c b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp_psp.c index 8c137d7c032e..e58e7b93810b 100644 --- a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp_psp.c +++ b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp_psp.c @@ -368,6 +368,9 @@ enum mod_hdcp_status mod_hdcp_hdcp1_enable_encryption(struct mod_hdcp *hdcp) struct mod_hdcp_display *display = get_first_active_display(hdcp); enum mod_hdcp_status status = MOD_HDCP_STATUS_SUCCESS; + if (!display) + return MOD_HDCP_STATUS_DISPLAY_NOT_FOUND; + mutex_lock(&psp->hdcp_context.mutex); hdcp_cmd = (struct ta_hdcp_shared_memory *)psp->hdcp_context.context.mem_context.shared_buf; memset(hdcp_cmd, 0, sizeof(struct ta_hdcp_shared_memory)); -- 2.42.0.windows.2

3 months, 4 weeks

2
1
0 0

[PATCH AUTOSEL 5.4 1/2] platform/x86: fujitsu-laptop: Support Lifebook S2110 hotkeys

by Sasha Levin

From: Valtteri Koskivuori <vkoskiv(a)gmail.com> [ Upstream commit a7e255ff9fe4d9b8b902023aaf5b7a673786bb50 ] The S2110 has an additional set of media playback control keys enabled by a hardware toggle button that switches the keys between "Application" and "Player" modes. Toggling "Player" mode just shifts the scancode of each hotkey up by 4. Add defines for new scancodes, and a keymap and dmi id for the S2110. Tested on a Fujitsu Lifebook S2110. Signed-off-by: Valtteri Koskivuori <vkoskiv(a)gmail.com> Acked-by: Jonathan Woithe <jwoithe(a)just42.net> Link: https://lore.kernel.org/r/20250509184251.713003-1-vkoskiv@gmail.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen(a)linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen(a)linux.intel.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- drivers/platform/x86/fujitsu-laptop.c | 33 +++++++++++++++++++++++---- 1 file changed, 29 insertions(+), 4 deletions(-) diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c index 80929380ec7e3..04ccfdd99e277 100644 --- a/drivers/platform/x86/fujitsu-laptop.c +++ b/drivers/platform/x86/fujitsu-laptop.c @@ -17,13 +17,13 @@ /* * fujitsu-laptop.c - Fujitsu laptop support, providing access to additional * features made available on a range of Fujitsu laptops including the - * P2xxx/P5xxx/S6xxx/S7xxx series. + * P2xxx/P5xxx/S2xxx/S6xxx/S7xxx series. * * This driver implements a vendor-specific backlight control interface for * Fujitsu laptops and provides support for hotkeys present on certain Fujitsu * laptops. * - * This driver has been tested on a Fujitsu Lifebook S6410, S7020 and + * This driver has been tested on a Fujitsu Lifebook S2110, S6410, S7020 and * P8010. It should work on most P-series and S-series Lifebooks, but * YMMV. * @@ -102,7 +102,11 @@ #define KEY2_CODE 0x411 #define KEY3_CODE 0x412 #define KEY4_CODE 0x413 -#define KEY5_CODE 0x420 +#define KEY5_CODE 0x414 +#define KEY6_CODE 0x415 +#define KEY7_CODE 0x416 +#define KEY8_CODE 0x417 +#define KEY9_CODE 0x420 /* Hotkey ringbuffer limits */ #define MAX_HOTKEY_RINGBUFFER_SIZE 100 @@ -450,7 +454,7 @@ static const struct key_entry keymap_default[] = { { KE_KEY, KEY2_CODE, { KEY_PROG2 } }, { KE_KEY, KEY3_CODE, { KEY_PROG3 } }, { KE_KEY, KEY4_CODE, { KEY_PROG4 } }, - { KE_KEY, KEY5_CODE, { KEY_RFKILL } }, + { KE_KEY, KEY9_CODE, { KEY_RFKILL } }, /* Soft keys read from status flags */ { KE_KEY, FLAG_RFKILL, { KEY_RFKILL } }, { KE_KEY, FLAG_TOUCHPAD_TOGGLE, { KEY_TOUCHPAD_TOGGLE } }, @@ -474,6 +478,18 @@ static const struct key_entry keymap_p8010[] = { { KE_END, 0 } }; +static const struct key_entry keymap_s2110[] = { + { KE_KEY, KEY1_CODE, { KEY_PROG1 } }, /* "A" */ + { KE_KEY, KEY2_CODE, { KEY_PROG2 } }, /* "B" */ + { KE_KEY, KEY3_CODE, { KEY_WWW } }, /* "Internet" */ + { KE_KEY, KEY4_CODE, { KEY_EMAIL } }, /* "E-mail" */ + { KE_KEY, KEY5_CODE, { KEY_STOPCD } }, + { KE_KEY, KEY6_CODE, { KEY_PLAYPAUSE } }, + { KE_KEY, KEY7_CODE, { KEY_PREVIOUSSONG } }, + { KE_KEY, KEY8_CODE, { KEY_NEXTSONG } }, + { KE_END, 0 } +}; + static const struct key_entry *keymap = keymap_default; static int fujitsu_laptop_dmi_keymap_override(const struct dmi_system_id *id) @@ -511,6 +527,15 @@ static const struct dmi_system_id fujitsu_laptop_dmi_table[] = { }, .driver_data = (void *)keymap_p8010 }, + { + .callback = fujitsu_laptop_dmi_keymap_override, + .ident = "Fujitsu LifeBook S2110", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), + DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK S2110"), + }, + .driver_data = (void *)keymap_s2110 + }, {} }; -- 2.39.5

3 months, 4 weeks

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[PATCH AUTOSEL 5.10 1/2] platform/x86: fujitsu-laptop: Support Lifebook S2110 hotkeys

by Sasha Levin

From: Valtteri Koskivuori <vkoskiv(a)gmail.com> [ Upstream commit a7e255ff9fe4d9b8b902023aaf5b7a673786bb50 ] The S2110 has an additional set of media playback control keys enabled by a hardware toggle button that switches the keys between "Application" and "Player" modes. Toggling "Player" mode just shifts the scancode of each hotkey up by 4. Add defines for new scancodes, and a keymap and dmi id for the S2110. Tested on a Fujitsu Lifebook S2110. Signed-off-by: Valtteri Koskivuori <vkoskiv(a)gmail.com> Acked-by: Jonathan Woithe <jwoithe(a)just42.net> Link: https://lore.kernel.org/r/20250509184251.713003-1-vkoskiv@gmail.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen(a)linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen(a)linux.intel.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- drivers/platform/x86/fujitsu-laptop.c | 33 +++++++++++++++++++++++---- 1 file changed, 29 insertions(+), 4 deletions(-) diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c index 80929380ec7e3..04ccfdd99e277 100644 --- a/drivers/platform/x86/fujitsu-laptop.c +++ b/drivers/platform/x86/fujitsu-laptop.c @@ -17,13 +17,13 @@ /* * fujitsu-laptop.c - Fujitsu laptop support, providing access to additional * features made available on a range of Fujitsu laptops including the - * P2xxx/P5xxx/S6xxx/S7xxx series. + * P2xxx/P5xxx/S2xxx/S6xxx/S7xxx series. * * This driver implements a vendor-specific backlight control interface for * Fujitsu laptops and provides support for hotkeys present on certain Fujitsu * laptops. * - * This driver has been tested on a Fujitsu Lifebook S6410, S7020 and + * This driver has been tested on a Fujitsu Lifebook S2110, S6410, S7020 and * P8010. It should work on most P-series and S-series Lifebooks, but * YMMV. * @@ -102,7 +102,11 @@ #define KEY2_CODE 0x411 #define KEY3_CODE 0x412 #define KEY4_CODE 0x413 -#define KEY5_CODE 0x420 +#define KEY5_CODE 0x414 +#define KEY6_CODE 0x415 +#define KEY7_CODE 0x416 +#define KEY8_CODE 0x417 +#define KEY9_CODE 0x420 /* Hotkey ringbuffer limits */ #define MAX_HOTKEY_RINGBUFFER_SIZE 100 @@ -450,7 +454,7 @@ static const struct key_entry keymap_default[] = { { KE_KEY, KEY2_CODE, { KEY_PROG2 } }, { KE_KEY, KEY3_CODE, { KEY_PROG3 } }, { KE_KEY, KEY4_CODE, { KEY_PROG4 } }, - { KE_KEY, KEY5_CODE, { KEY_RFKILL } }, + { KE_KEY, KEY9_CODE, { KEY_RFKILL } }, /* Soft keys read from status flags */ { KE_KEY, FLAG_RFKILL, { KEY_RFKILL } }, { KE_KEY, FLAG_TOUCHPAD_TOGGLE, { KEY_TOUCHPAD_TOGGLE } }, @@ -474,6 +478,18 @@ static const struct key_entry keymap_p8010[] = { { KE_END, 0 } }; +static const struct key_entry keymap_s2110[] = { + { KE_KEY, KEY1_CODE, { KEY_PROG1 } }, /* "A" */ + { KE_KEY, KEY2_CODE, { KEY_PROG2 } }, /* "B" */ + { KE_KEY, KEY3_CODE, { KEY_WWW } }, /* "Internet" */ + { KE_KEY, KEY4_CODE, { KEY_EMAIL } }, /* "E-mail" */ + { KE_KEY, KEY5_CODE, { KEY_STOPCD } }, + { KE_KEY, KEY6_CODE, { KEY_PLAYPAUSE } }, + { KE_KEY, KEY7_CODE, { KEY_PREVIOUSSONG } }, + { KE_KEY, KEY8_CODE, { KEY_NEXTSONG } }, + { KE_END, 0 } +}; + static const struct key_entry *keymap = keymap_default; static int fujitsu_laptop_dmi_keymap_override(const struct dmi_system_id *id) @@ -511,6 +527,15 @@ static const struct dmi_system_id fujitsu_laptop_dmi_table[] = { }, .driver_data = (void *)keymap_p8010 }, + { + .callback = fujitsu_laptop_dmi_keymap_override, + .ident = "Fujitsu LifeBook S2110", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), + DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK S2110"), + }, + .driver_data = (void *)keymap_s2110 + }, {} }; -- 2.39.5

3 months, 4 weeks

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