- Linux-stable-mirror - lists.linaro.org

[PATCH 6.1.y] selftests: mptcp: connect: fix build regression caused by backport

by Kenta Akagi

Since v6.1.154, mptcp selftests have failed to build with the following errors: mptcp_connect.c: In function ‘main_loop_s’: mptcp_connect.c:1040:59: error: ‘winfo’ undeclared (first use in this function) 1040 | err = copyfd_io(fd, remotesock, 1, true, &winfo); | ^~~~~ mptcp_connect.c:1040:59: note: each undeclared identifier is reported only once for each function it appears in mptcp_connect.c:1040:23: error: too many arguments to function ‘copyfd_io’; expected 4, have 5 1040 | err = copyfd_io(fd, remotesock, 1, true, &winfo); | ^~~~~~~~~ ~~~~~~ mptcp_connect.c:845:12: note: declared here 845 | static int copyfd_io(int infd, int peerfd, int outfd, bool close_peerfd) | ^~~~~~~~~ This is caused by commit ff160500c499 ("selftests: mptcp: connect: catch IO errors on listen side"), a backport of upstream 14e22b43df25, which attempts to use the undeclared variable 'winfo' and passes too many arguments to copyfd_io(). Both the winfo variable and the updated copyfd_io() function were introduced in upstream commit ca7ae8916043 ("selftests: mptcp: mptfo Initiator/Listener"), which is not present in v6.1.y. The goal of the backport is to stop on errors from copyfd_io. Therefore, the backport does not depend on the changes in upstream commit ca7ae8916043 ("selftests: mptcp: mptfo Initiator/Listener"). This commit simply removes ', &winfo' to fix a build failure. Fixes: ff160500c499 ("selftests: mptcp: connect: catch IO errors on listen side") Signed-off-by: Kenta Akagi <k(a)mgml.me> --- commit 14e22b43df25 ("selftests: mptcp: connect: catch IO errors on listen side") has only been backported to >=v6.1.y, and commit ca7ae8916043 ("selftests: mptcp: mptfo Initiator/Listener") exists from v6.2. so, only v6.1.y requires this fix. --- tools/testing/selftests/net/mptcp/mptcp_connect.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/net/mptcp/mptcp_connect.c b/tools/testing/selftests/net/mptcp/mptcp_connect.c index 0d49b6753011..0b253c133f06 100644 --- a/tools/testing/selftests/net/mptcp/mptcp_connect.c +++ b/tools/testing/selftests/net/mptcp/mptcp_connect.c @@ -1037,7 +1037,7 @@ int main_loop_s(int listensock) SOCK_TEST_TCPULP(remotesock, 0); - err = copyfd_io(fd, remotesock, 1, true, &winfo); + err = copyfd_io(fd, remotesock, 1, true); } else { perror("accept"); return 1; -- 2.50.1

1 month

2
1
0 0

[PATCH RESEND] PCI/AER: Check for NULL aer_info before ratelimiting in pci_print_aer()

by Breno Leitao

Similarly to pci_dev_aer_stats_incr(), pci_print_aer() may be called when dev->aer_info is NULL. Add a NULL check before proceeding to avoid calling aer_ratelimit() with a NULL aer_info pointer, returning 1, which does not rate limit, given this is fatal. This prevents a kernel crash triggered by dereferencing a NULL pointer in aer_ratelimit(), ensuring safer handling of PCI devices that lack AER info. This change aligns pci_print_aer() with pci_dev_aer_stats_incr() which already performs this NULL check. Cc: stable(a)vger.kernel.org Fixes: a57f2bfb4a5863 ("PCI/AER: Ratelimit correctable and non-fatal error logging") Signed-off-by: Breno Leitao <leitao(a)debian.org> --- - This problem is still happening in upstream, and unfortunately no action was done in the previous discussion. - Link to previous post: https://lore.kernel.org/r/20250804-aer_crash_2-v1-1-fd06562c18a4@debian.org --- drivers/pci/pcie/aer.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/pci/pcie/aer.c b/drivers/pci/pcie/aer.c index e286c197d7167..55abc5e17b8b1 100644 --- a/drivers/pci/pcie/aer.c +++ b/drivers/pci/pcie/aer.c @@ -786,6 +786,9 @@ static void pci_rootport_aer_stats_incr(struct pci_dev *pdev, static int aer_ratelimit(struct pci_dev *dev, unsigned int severity) { + if (!dev->aer_info) + return 1; + switch (severity) { case AER_NONFATAL: return __ratelimit(&dev->aer_info->nonfatal_ratelimit); --- base-commit: e5f0a698b34ed76002dc5cff3804a61c80233a7a change-id: 20250801-aer_crash_2-b21cc2ef0d00 Best regards, -- Breno Leitao <leitao(a)debian.org>

1 month

5
7
0 0

[PATCH v3 00/11 6.1.y] Backport minmax.h updates from v6.17-rc7

by Eliav Farber

This series backports 13 patches to update minmax.h in the 6.1.y branch, aligning it with v6.17-rc7. The ultimate goal is to synchronize all longterm branches so that they include the full set of minmax.h changes (6.12.y and 6.6.y were already backported by me and are now ligned). The key motivation is to bring in commit d03eba99f5bf ("minmax: allow min()/max()/clamp() if the arguments have the same signedness"), which is missing in older kernels. In mainline, this change enables min()/max()/clamp() to accept mixed argument types, provided both have the same signedness. Without it, backported patches that use these forms may trigger compiler warnings, which escalate to build failures when -Werror is enabled. Changes in v3: - v2 included 13 patches: https://lore.kernel.org/stable/20250929183358.18982-1-farbere@amazon.com/ - First 2 were accepted and are part of 6.1.155. - 3rd caused build in drivers/md/ to fail: In file included from ./include/linux/container_of.h:5, from ./include/linux/list.h:5, from ./include/linux/wait.h:7, from ./include/linux/mempool.h:8, from ./include/linux/bio.h:8, from drivers/md/dm-bio-record.h:10, from drivers/md/dm-integrity.c:9: drivers/md/dm-integrity.c: In function ‘integrity_metadata’: drivers/md/dm-integrity.c:131:105: error: ISO C90 forbids variable length array ‘checksums_onstack’ [-Werror=vla] 131 | #define MAX_TAG_SIZE (JOURNAL_SECTOR_DATA - JOURNAL_MAC_PER_SECTOR - offsetof(struct journal_entry, last_bytes[MAX_SECTORS_PER_BLOCK])) | ^~~~~~~~~~~~~ ./include/linux/build_bug.h:78:56: note: in definition of macro ‘__static_assert’ 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~ ./include/linux/minmax.h:56:9: note: in expansion of macro ‘static_assert’ 56 | static_assert(__types_ok(x, y, ux, uy), \ | ^~~~~~~~~~~~~ ./include/linux/minmax.h:41:31: note: in expansion of macro ‘__is_noneg_int’ 41 | __is_noneg_int(x) || __is_noneg_int(y)) | ^~~~~~~~~~~~~~ ./include/linux/minmax.h:56:23: note: in expansion of macro ‘__types_ok’ 56 | static_assert(__types_ok(x, y, ux, uy), \ | ^~~~~~~~~~ ./include/linux/minmax.h:61:9: note: in expansion of macro ‘__careful_cmp_once’ 61 | __careful_cmp_once(op, x, y, __UNIQUE_ID(x_), __UNIQUE_ID(y_)) | ^~~~~~~~~~~~~~~~~~ ./include/linux/minmax.h:92:25: note: in expansion of macro ‘__careful_cmp’ 92 | #define max(x, y) __careful_cmp(max, x, y) | ^~~~~~~~~~~~~ drivers/md/dm-integrity.c:1797:40: note: in expansion of macro ‘max’ 1797 | char checksums_onstack[max((size_t)HASH_MAX_DIGESTSIZE, MAX_TAG_SIZE)]; | ^~~ drivers/md/dm-integrity.c:131:89: note: in expansion of macro ‘offsetof’ 131 | #define MAX_TAG_SIZE (JOURNAL_SECTOR_DATA - JOURNAL_MAC_PER_SECTOR - offsetof(struct journal_entry, last_bytes[MAX_SECTORS_PER_BLOCK])) | ^~~~~~~~ drivers/md/dm-integrity.c:1797:73: note: in expansion of macro ‘MAX_TAG_SIZE’ 1797 | char checksums_onstack[max((size_t)HASH_MAX_DIGESTSIZE, MAX_TAG_SIZE)]; | ^~~~~~~~~~~~ - The build was fixed in the second patch of this series. Changes in v2: - v1 included 19 patches: https://lore.kernel.org/stable/20250924202320.32333-1-farbere@amazon.com/ - First 6 were pushed to the stable-tree. - 7th cauded amd driver's build to fail. - This change fixes it. - Modified files: drivers/gpu/drm/amd/amdgpu/amdgpu.h drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c David Laight (7): minmax.h: add whitespace around operators and after commas minmax.h: update some comments minmax.h: reduce the #define expansion of min(), max() and clamp() minmax.h: use BUILD_BUG_ON_MSG() for the lo < hi test in clamp() minmax.h: move all the clamp() definitions after the min/max() ones minmax.h: simplify the variants of clamp() minmax.h: remove some #defines that are only expanded once Linus Torvalds (4): minmax: simplify min()/max()/clamp() implementation minmax: don't use max() in situations that want a C constant expression minmax: improve macro expansion and type checking minmax: fix up min3() and max3() too drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c | 2 +- drivers/input/touchscreen/cyttsp4_core.c | 2 +- drivers/irqchip/irq-sun6i-r.c | 2 +- drivers/md/dm-integrity.c | 2 +- fs/btrfs/tree-checker.c | 2 +- include/linux/compiler.h | 9 + include/linux/minmax.h | 222 +++++++++++++---------- lib/vsprintf.c | 2 +- 8 files changed, 143 insertions(+), 100 deletions(-) -- 2.47.3

1 month

1
11
0 0

Elpat Loan Promotional Offer at 5% interest rate Apply now!!

by Elpat Financial Loan

Good Day, Elpat Financial Services is here to support the SME market across South Africa with fast, affordable funding— no credit checks required. We offer: 1. Business Loans – Up to R10 million, approved within 72 hours. 2. Personal Loans – Up to R5 million, approved within 48 hours. 3. Home, Farmers & Construction Loans – Up to R20 million, approved within 3–5 working days. As a trusted financial partner, we have already helped many businesses—whether you’re self-employed, a contractor, retailer, restaurant owner, engineer, cleaning service, child-care provider, or web designer. Your time is valuable, and our goal is to provide flexible finance that works with your cash flow needs. That’s why we cut out the red tape: no branches, no queues, no endless paperwork. Just quick, reliable access to the funding you need to grow. How to Apply: * Prepare the required documents * Please submit your application via email to apply(a)elpatfinanceloan.co.za . For a quicker response, you may also send it directly to [ mailto:helpdeskelephantloan@outlook.com | helpdeskelephantloan(a)outlook.com ] TO APPLY KINDLY SEND 1. A clear copy of your valid ID 2. Pay Slip OR 3 Months Bank Statement 3. Cell No. / Office No................... 4. Whatsapp No (Optional).................. 5. Email............... 6. Loan Amount........................ ...... NOTE : (minimum loan amount R50,000.00 to R50,000,000.00 ) only. 7. Loan Repayment Duration............... 8. Loan Type.......................... .... 5% Repayment Schedule Table for Guide to Application Loan Amount Duration (Year) Repayment Period Loan Amount Duration (Year) Repayment Period Loan Amount Duration (Year) Repayment Period R 50,000 2 R2, 193.57 R 50,000 3 R1, 498.54 R 50,000 5 R 943.56 R 100,000 3 R2, 997.09 R 100,000 4 R2, 302.93 R 100,000 6 R1,610.49 R 150,000 3 R 4,495.63 R150,000 5 R2, 830.69 R150,000 7 R2,120.09 R 300,000 4 R 6,908.79 R 300,000 6 R 4,831.48 R 300,000 8 R3,797.98 R 400,000 5 R 7,548.49 R 400,000 7 R 5,653.56 R 400,000 9 R4,606.91 R 600,000 6 R9, 662.96 R 600,000 8 R 7,595.95 R 600,000 10 R6,363.93 R 800,000 7 R11,307.13 R 800,000 9 R 9,213.82 R 800,000 11 R7,891.59 R1,000,000 8 R12,659.92 R1,000,000 10 R10,606.55 R1,000,000 12 R9,248.90 Please Note: * Loan amounts range from R50,000.00 to R20,000,000.00 . Kindly indicate the amount you are applying for in your application. * Credit decision within 24–48 hours. * Funds available in your account within 24–48 hours of approval. * Fast and hassle-free process. * Free monthly statements sent directly to your email. * Customer Protection Insurance included for your peace of mind. * Immediate access to funds once transferred. For quick assistance, you can reach us via WhatsApp: +27 (0)63 348 1211 Or call us directly on +27 (0)635725001 for more information. Thanks for Choosing Direct Elpat Financial Services Elpat Financial Services Loan adviser Louw Anita (Mrs) apply(a)elpatfinanceloan.co.za Tel: +27 (0) 61015588 Elpat Financial Services - 43 Long street, cape town city centre cape town 800 south Africa, Cape Town. And Our Direct Connection to Financial Services. Registered Credit Provider. Elpat Financial Services SA (Pty) Ltd (Registration No 2015/085124/07 / NCRCP/119387 is an authorised Financial Services Provider. © Copyright 2025

1 month

1
0
0 0

[PATCH v3 0/3] ASoC: SOF: ipc4/Intel: Fix the host buffer constraint

by Peter Ujfalusi

Hi, CHanges since v2: - SHA fix for the last commit, tripple checked them Changes since v1: - SHAs for Fixes tag corrected (sorry) The size of the DSP host buffer was incorrectly defined as 2ms while it is 4ms and the ChainDMA PCMs are using 5ms as host facing buffer. The constraint will be set against the period time rather than the buffer time to make sure that application will not face with xruns when the DMA bursts to refill the host buffer. The minimal period size will be also used by Pipewire in case of SOF cards to set the headroom to a length which will avoid the cases when the hw_ptr jumps over the appl_ptr because of a burst. Iow, it will make Pipewire to keep a safe distance from the hw_ptr. https://github.com/thesofproject/linux/issues/5284 https://gitlab.freedesktop.org/pipewire/wireplumber/-/merge_requests/740 https://gitlab.freedesktop.org/pipewire/pipewire/-/merge_requests/2548 Regards, Peter --- Peter Ujfalusi (3): ASoC: SOF: ipc4-topology: Correct the minimum host DMA buffer size ASoC: SOF: ipc4-topology: Account for different ChainDMA host buffer size ASoC: SOF: Intel: hda-pcm: Place the constraint on period time instead of buffer time sound/soc/sof/intel/hda-pcm.c | 29 +++++++++++++++++++++-------- sound/soc/sof/ipc4-topology.c | 9 +++++++-- sound/soc/sof/ipc4-topology.h | 7 +++++-- 3 files changed, 33 insertions(+), 12 deletions(-) -- 2.51.0

1 month

2
4
0 0

[PATCH 0/3] ASoC: SOF: ipc4/Intel: Fix the host buffer constraint

by Peter Ujfalusi

Hi, The size of the DSP host buffer was incorrectly defined as 2ms while it is 4ms and the ChainDMA PCMs are using 5ms as host facing buffer. The constraint will be set against the period time rather than the buffer time to make sure that application will not face with xruns when the DMA bursts to refill the host buffer. The minimal period size will be also used by Pipewire in case of SOF cards to set the headroom to a length which will avoid the cases when the hw_ptr jumps over the appl_ptr because of a burst. Iow, it will make Pipewire to keep a safe distance from the hw_ptr. https://github.com/thesofproject/linux/issues/5284 https://gitlab.freedesktop.org/pipewire/wireplumber/-/merge_requests/740 https://gitlab.freedesktop.org/pipewire/pipewire/-/merge_requests/2548 Regards, Peter --- Peter Ujfalusi (3): ASoC: SOF: ipc4-topology: Correct the minimum host DMA buffer size ASoC: SOF: ipc4-topology: Account for different ChainDMA host buffer size ASoC: SOF: Intel: hda-pcm: Place the constraint on period time instead of buffer time sound/soc/sof/intel/hda-pcm.c | 29 +++++++++++++++++++++-------- sound/soc/sof/ipc4-topology.c | 9 +++++++-- sound/soc/sof/ipc4-topology.h | 7 +++++-- 3 files changed, 33 insertions(+), 12 deletions(-) -- 2.51.0

1 month

3
6
0 0

[PATCH v2] stable: crypto: sha256 - fix crash at kexec

by Breno Leitao

Loading a large (~2.1G) files with kexec crashes the host with when running: # kexec --load kernel --initrd initrd_with_2G_or_more UBSAN: signed-integer-overflow in ./include/crypto/sha256_base.h:64:19 34152083 * 64 cannot be represented in type 'int' ... BUG: unable to handle page fault for address: ff9fffff83b624c0 sha256_update (lib/crypto/sha256.c:137) crypto_sha256_update (crypto/sha256_generic.c:40) kexec_calculate_store_digests (kernel/kexec_file.c:769) __se_sys_kexec_file_load (kernel/kexec_file.c:397 kernel/kexec_file.c:332) ... (Line numbers based on commit da274362a7bd9 ("Linux 6.12.49") This started happening after commit f4da7afe07523f ("kexec_file: increase maximum file size to 4G") that landed in v6.0, which increased the file size for kexec. This is not happening upstream (v6.16+), given that `block` type was upgraded from "int" to "size_t" in commit 74a43a2cf5e8 ("crypto: lib/sha256 - Move partial block handling out") Upgrade the block type similar to the commit above, avoiding hitting the overflow. This patch is only suitable for the stable tree, and before 6.16, which got commit 74a43a2cf5e8 ("crypto: lib/sha256 - Move partial block handling out"). This is not required before f4da7afe07523f ("kexec_file: increase maximum file size to 4G"). In other words, this fix is required between versions v6.0 and v6.16. Signed-off-by: Breno Leitao <leitao(a)debian.org> Fixes: f4da7afe07523f ("kexec_file: increase maximum file size to 4G") # Before v6.16 Reported-by: Michael van der Westhuizen <rmikey(a)meta.com> Reported-by: Tobias Fleig <tfleig(a)meta.com> --- Changes in v2: - s/size_t/unsigned int/ as suggested by Eric - Tag the commit that introduce the problem as Fixes, making backport easier. - Link to v1: https://lore.kernel.org/r/20251001-stable_crash-v1-1-3071c0bd795e@debian.org --- include/crypto/sha256_base.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/crypto/sha256_base.h b/include/crypto/sha256_base.h index e0418818d63c8..e3e610cfe8d30 100644 --- a/include/crypto/sha256_base.h +++ b/include/crypto/sha256_base.h @@ -44,7 +44,7 @@ static inline int lib_sha256_base_do_update(struct sha256_state *sctx, sctx->count += len; if (unlikely((partial + len) >= SHA256_BLOCK_SIZE)) { - int blocks; + unsigned int blocks; if (partial) { int p = SHA256_BLOCK_SIZE - partial; --- base-commit: da274362a7bd9ab3a6e46d15945029145ebce672 change-id: 20251001-stable_crash-f2151baf043b Best regards, -- Breno Leitao <leitao(a)debian.org>

1 month

3
2
0 0

[PATCH] ASoC: SOF: ipc3-topology: Fix multi-core and static pipelines tear down

by Peter Ujfalusi

From: Ranjani Sridharan <ranjani.sridharan(a)linux.intel.com> In the case of static pipelines, freeing the widgets in the pipelines that were not suspended after freeing the scheduler widgets results in errors because the secondary cores are powered off when the scheduler widgets are freed. Fix this by tearing down the leftover pipelines before powering off the secondary cores. Cc: stable(a)vger.kernel.org Fixes: d7332c4a4f1a ("ASoC: SOF: ipc3-topology: Fix pipeline tear down logic") Signed-off-by: Ranjani Sridharan <ranjani.sridharan(a)linux.intel.com> Reviewed-by: Péter Ujfalusi <peter.ujfalusi(a)linux.intel.com> Reviewed-by: Kai Vehmanen <kai.vehmanen(a)linux.intel.com> Signed-off-by: Peter Ujfalusi <peter.ujfalusi(a)linux.intel.com> --- sound/soc/sof/ipc3-topology.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/sound/soc/sof/ipc3-topology.c b/sound/soc/sof/ipc3-topology.c index 473d416bc910..f449362a2905 100644 --- a/sound/soc/sof/ipc3-topology.c +++ b/sound/soc/sof/ipc3-topology.c @@ -2473,11 +2473,6 @@ static int sof_ipc3_tear_down_all_pipelines(struct snd_sof_dev *sdev, bool verif if (ret < 0) return ret; - /* free all the scheduler widgets now */ - ret = sof_ipc3_free_widgets_in_list(sdev, true, &dyn_widgets, verify); - if (ret < 0) - return ret; - /* * Tear down all pipelines associated with PCMs that did not get suspended * and unset the prepare flag so that they can be set up again during resume. @@ -2493,6 +2488,11 @@ static int sof_ipc3_tear_down_all_pipelines(struct snd_sof_dev *sdev, bool verif } } + /* free all the scheduler widgets now. This will also power down the secondary cores */ + ret = sof_ipc3_free_widgets_in_list(sdev, true, &dyn_widgets, verify); + if (ret < 0) + return ret; + list_for_each_entry(sroute, &sdev->route_list, list) sroute->setup = false; -- 2.51.0

1 month

2
1
0 0

[PATCH 6.1 00/61] 6.1.154-rc1 review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 6.1.154 release. There are 61 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 Wed, 24 Sep 2025 19:23:52 +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/v6.x/stable-review/patch-6.1.154-rc… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.1.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 6.1.154-rc1 Herbert Xu <herbert(a)gondor.apana.org.au> crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg David Howells <dhowells(a)redhat.com> crypto: af_alg: Convert af_alg_sendpage() to use MSG_SPLICE_PAGES Krzysztof Kozlowski <krzysztof.kozlowski(a)linaro.org> ASoC: qcom: q6apm-lpass-dais: Fix NULL pointer dereference if source graph failed Srinivas Kandagatla <srinivas.kandagatla(a)linaro.org> ASoC: q6apm-lpass-dai: close graph on prepare errors Srinivas Kandagatla <srinivas.kandagatla(a)linaro.org> ASoC: qcom: q6apm-lpass-dai: close graphs before opening a new one Hans de Goede <hansg(a)kernel.org> net: rfkill: gpio: Fix crash due to dereferencering uninitialized pointer Philipp Zabel <p.zabel(a)pengutronix.de> net: rfkill: gpio: add DT support Matthieu Baerts (NGI0) <matttbe(a)kernel.org> selftests: mptcp: connect: catch IO errors on listen side Matthieu Baerts (NGI0) <matttbe(a)kernel.org> mptcp: propagate shutdown to subflows when possible Mathias Nyman <mathias.nyman(a)linux.intel.com> xhci: dbc: Fix full DbC transfer ring after several reconnects Mathias Nyman <mathias.nyman(a)linux.intel.com> xhci: dbc: decouple endpoint allocation from initialization Johan Hovold <johan(a)kernel.org> phy: ti: omap-usb2: fix device leak at unbind Rob Herring <robh(a)kernel.org> phy: Use device_get_match_data() Krzysztof Kozlowski <krzysztof.kozlowski(a)linaro.org> phy: broadcom: ns-usb3: fix Wvoid-pointer-to-enum-cast warning Matthieu Baerts (NGI0) <matttbe(a)kernel.org> selftests: mptcp: userspace pm: validate deny-join-id0 flag Matthieu Baerts (NGI0) <matttbe(a)kernel.org> mptcp: pm: nl: announce deny-join-id0 flag Stefan Metzmacher <metze(a)samba.org> smb: client: fix smbdirect_recv_io leak in smbd_negotiate() error path Herbert Xu <herbert(a)gondor.apana.org.au> crypto: af_alg - Set merge to zero early in af_alg_sendmsg David Howells <dhowells(a)redhat.com> crypto: af_alg: Indent the loop in af_alg_sendmsg() Qi Xi <xiqi2(a)huawei.com> drm: bridge: cdns-mhdp8546: Fix missing mutex unlock on error path Loic Poulain <loic.poulain(a)oss.qualcomm.com> drm: bridge: anx7625: Fix NULL pointer dereference with early IRQ Colin Ian King <colin.i.king(a)gmail.com> ASoC: SOF: Intel: hda-stream: Fix incorrect variable used in error message Charles Keepax <ckeepax(a)opensource.cirrus.com> ASoC: wm8974: Correct PLL rate rounding Charles Keepax <ckeepax(a)opensource.cirrus.com> ASoC: wm8940: Correct typo in control name Jens Axboe <axboe(a)kernel.dk> io_uring: include dying ring in task_work "should cancel" state Jens Axboe <axboe(a)kernel.dk> io_uring: backport io_should_terminate_tw() Praful Adiga <praful.adiga(a)gmail.com> ALSA: hda/realtek: Fix mute led for HP Laptop 15-dw4xx Matthieu Baerts (NGI0) <matttbe(a)kernel.org> selftests: mptcp: avoid spurious errors on TCP disconnect Håkon Bugge <haakon.bugge(a)oracle.com> rds: ib: Increment i_fastreg_wrs before bailing out Maciej S. Szmigiero <maciej.szmigiero(a)oracle.com> KVM: SVM: Sync TPR from LAPIC into VMCB::V_TPR even if AVIC is active Thomas Fourier <fourier.thomas(a)gmail.com> mmc: mvsdio: Fix dma_unmap_sg() nents value Mohammad Rafi Shaik <mohammad.rafi.shaik(a)oss.qualcomm.com> ASoC: qcom: q6apm-lpass-dais: Fix missing set_fmt DAI op for I2S Mohammad Rafi Shaik <mohammad.rafi.shaik(a)oss.qualcomm.com> ASoC: qcom: audioreach: Fix lpaif_type configuration for the I2S interface Qu Wenruo <wqu(a)suse.com> btrfs: tree-checker: fix the incorrect inode ref size check Eugene Koira <eugkoira(a)amazon.com> iommu/vt-d: Fix __domain_mapping()'s usage of switch_to_super_page() Tao Cui <cuitao(a)kylinos.cn> LoongArch: Check the return value when creating kobj Huacai Chen <chenhuacai(a)kernel.org> LoongArch: Align ACPI structures if ARCH_STRICT_ALIGN enabled H. Nikolaus Schaller <hns(a)goldelico.com> power: supply: bq27xxx: restrict no-battery detection to bq27000 H. Nikolaus Schaller <hns(a)goldelico.com> power: supply: bq27xxx: fix error return in case of no bq27000 hdq battery Nathan Chancellor <nathan(a)kernel.org> nilfs2: fix CFI failure when accessing /sys/fs/nilfs2/features/* Stefan Metzmacher <metze(a)samba.org> ksmbd: smbdirect: verify remaining_data_length respects max_fragmented_recv_size Namjae Jeon <linkinjeon(a)kernel.org> ksmbd: smbdirect: validate data_offset and data_length field of smb_direct_data_transfer Duoming Zhou <duoming(a)zju.edu.cn> octeontx2-pf: Fix use-after-free bugs in otx2_sync_tstamp() Duoming Zhou <duoming(a)zju.edu.cn> cnic: Fix use-after-free bugs in cnic_delete_task Alexey Nepomnyashih <sdl(a)nppct.ru> net: liquidio: fix overflow in octeon_init_instr_queue() Tariq Toukan <tariqt(a)nvidia.com> Revert "net/mlx5e: Update and set Xon/Xoff upon port speed set" Jakub Kicinski <kuba(a)kernel.org> tls: make sure to abort the stream if headers are bogus Kuniyuki Iwashima <kuniyu(a)google.com> tcp: Clear tcp_sk(sk)->fastopen_rsk in tcp_disconnect(). Hangbin Liu <liuhangbin(a)gmail.com> bonding: don't set oif to bond dev when getting NS target destination Maciej Fijalkowski <maciej.fijalkowski(a)intel.com> i40e: remove redundant memory barrier when cleaning Tx descs Yeounsu Moon <yyyynoom(a)gmail.com> net: natsemi: fix `rx_dropped` double accounting on `netif_rx()` failure Matthieu Baerts (NGI0) <matttbe(a)kernel.org> mptcp: set remote_deny_join_id0 on SYN recv Jamie Bainbridge <jamie.bainbridge(a)gmail.com> qed: Don't collect too many protection override GRC elements Ioana Ciornei <ioana.ciornei(a)nxp.com> dpaa2-switch: fix buffer pool seeding for control traffic Miaoqian Lin <linmq006(a)gmail.com> um: virtio_uml: Fix use-after-free after put_device in probe Filipe Manana <fdmanana(a)suse.com> btrfs: fix invalid extref key setup when replaying dentry Chen Ridong <chenridong(a)huawei.com> cgroup: split cgroup_destroy_wq into 3 workqueues Geert Uytterhoeven <geert+renesas(a)glider.be> pcmcia: omap_cf: Mark driver struct with __refdata to prevent section mismatch Liao Yuanhong <liaoyuanhong(a)vivo.com> wifi: mac80211: fix incorrect type for ret Lachlan Hodges <lachlan.hodges(a)morsemicro.com> wifi: mac80211: increase scan_ies_len for S1G Takashi Sakamoto <o-takashi(a)sakamocchi.jp> ALSA: firewire-motu: drop EPOLLOUT from poll return values as write is not supported ------------- Diffstat: Makefile | 4 +- arch/loongarch/include/asm/acenv.h | 7 +- arch/loongarch/kernel/env.c | 2 + arch/um/drivers/virtio_uml.c | 6 +- arch/x86/kvm/svm/svm.c | 3 +- crypto/af_alg.c | 112 ++++++++------------- drivers/gpu/drm/bridge/analogix/anx7625.c | 6 +- .../gpu/drm/bridge/cadence/cdns-mhdp8546-core.c | 6 +- drivers/iommu/intel/iommu.c | 7 +- drivers/mmc/host/mvsdio.c | 2 +- drivers/net/bonding/bond_main.c | 1 - drivers/net/ethernet/broadcom/cnic.c | 3 +- .../net/ethernet/cavium/liquidio/request_manager.c | 2 +- .../net/ethernet/freescale/dpaa2/dpaa2-switch.c | 2 +- drivers/net/ethernet/intel/i40e/i40e_txrx.c | 3 - .../net/ethernet/marvell/octeontx2/nic/otx2_ptp.c | 2 +- drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 2 - drivers/net/ethernet/natsemi/ns83820.c | 13 ++- drivers/net/ethernet/qlogic/qed/qed_debug.c | 7 +- drivers/pcmcia/omap_cf.c | 8 +- drivers/phy/broadcom/phy-bcm-ns-usb3.c | 9 +- drivers/phy/marvell/phy-berlin-usb.c | 7 +- drivers/phy/ralink/phy-ralink-usb.c | 10 +- drivers/phy/rockchip/phy-rockchip-pcie.c | 11 +- drivers/phy/rockchip/phy-rockchip-usb.c | 10 +- drivers/phy/ti/phy-omap-control.c | 9 +- drivers/phy/ti/phy-omap-usb2.c | 24 +++-- drivers/phy/ti/phy-ti-pipe3.c | 14 +-- drivers/power/supply/bq27xxx_battery.c | 4 +- drivers/usb/host/xhci-dbgcap.c | 94 ++++++++++++----- fs/btrfs/tree-checker.c | 4 +- fs/btrfs/tree-log.c | 2 +- fs/nilfs2/sysfs.c | 4 +- fs/nilfs2/sysfs.h | 8 +- fs/smb/client/smbdirect.c | 4 +- fs/smb/server/transport_rdma.c | 26 +++-- include/crypto/if_alg.h | 10 +- include/uapi/linux/mptcp.h | 6 +- io_uring/io_uring.c | 13 ++- io_uring/io_uring.h | 13 +++ io_uring/poll.c | 3 +- io_uring/timeout.c | 2 +- kernel/cgroup/cgroup.c | 43 ++++++-- net/ipv4/tcp.c | 5 + net/mac80211/driver-ops.h | 2 +- net/mac80211/main.c | 7 +- net/mptcp/pm_netlink.c | 7 ++ net/mptcp/protocol.c | 15 +++ net/mptcp/subflow.c | 4 + net/rds/ib_frmr.c | 20 ++-- net/rfkill/rfkill-gpio.c | 22 +++- net/tls/tls.h | 1 + net/tls/tls_strp.c | 14 ++- net/tls/tls_sw.c | 3 +- sound/firewire/motu/motu-hwdep.c | 2 +- sound/pci/hda/patch_realtek.c | 1 + sound/soc/codecs/wm8940.c | 2 +- sound/soc/codecs/wm8974.c | 8 +- sound/soc/qcom/qdsp6/audioreach.c | 1 + sound/soc/qcom/qdsp6/q6apm-lpass-dais.c | 36 +++++-- sound/soc/sof/intel/hda-stream.c | 2 +- tools/testing/selftests/net/mptcp/mptcp_connect.c | 11 +- tools/testing/selftests/net/mptcp/pm_nl_ctl.c | 7 ++ tools/testing/selftests/net/mptcp/userspace_pm.sh | 14 ++- 64 files changed, 440 insertions(+), 272 deletions(-)

1 month

13
77
0 0

[PATCH v2 01/15] serial: sc16is7xx: remove useless enable of enhanced features

by Hugo Villeneuve

From: Hugo Villeneuve <hvilleneuve(a)dimonoff.com> Commit 43c51bb573aa ("sc16is7xx: make sure device is in suspend once probed") permanently enabled access to the enhanced features in sc16is7xx_probe(), and it is never disabled after that. Therefore, remove useless re-enable of enhanced features in sc16is7xx_set_baud(). Fixes: 43c51bb573aa ("sc16is7xx: make sure device is in suspend once probed") Cc: stable(a)vger.kernel.org Signed-off-by: Hugo Villeneuve <hvilleneuve(a)dimonoff.com> --- drivers/tty/serial/sc16is7xx.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c index 1a2c4c14f6aac..c7435595dce13 100644 --- a/drivers/tty/serial/sc16is7xx.c +++ b/drivers/tty/serial/sc16is7xx.c @@ -588,13 +588,6 @@ static int sc16is7xx_set_baud(struct uart_port *port, int baud) div /= prescaler; } - /* Enable enhanced features */ - sc16is7xx_efr_lock(port); - sc16is7xx_port_update(port, SC16IS7XX_EFR_REG, - SC16IS7XX_EFR_ENABLE_BIT, - SC16IS7XX_EFR_ENABLE_BIT); - sc16is7xx_efr_unlock(port); - /* If bit MCR_CLKSEL is set, the divide by 4 prescaler is activated. */ sc16is7xx_port_update(port, SC16IS7XX_MCR_REG, SC16IS7XX_MCR_CLKSEL_BIT, -- 2.39.5

1 month

2
2
0 0

[PATCH 11/14] iommu/omap: fix device leaks on probe_device()

by Johan Hovold

Make sure to drop the reference taken to the iommu platform devices during probe_device() on errors and when the device is later released. Fixes: 9d5018deec86 ("iommu/omap: Add support to program multiple iommus") Fixes: 7d6827748d54 ("iommu/omap: Fix iommu archdata name for DT-based devices") Cc: stable(a)vger.kernel.org # 3.18 Cc: Suman Anna <s-anna(a)ti.com> Signed-off-by: Johan Hovold <johan(a)kernel.org> --- drivers/iommu/omap-iommu.c | 27 +++++++++++++++++++-------- 1 file changed, 19 insertions(+), 8 deletions(-) diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c index 6fb93927bdb9..77023d49bd24 100644 --- a/drivers/iommu/omap-iommu.c +++ b/drivers/iommu/omap-iommu.c @@ -1636,7 +1636,7 @@ static struct iommu_device *omap_iommu_probe_device(struct device *dev) struct platform_device *pdev; struct omap_iommu *oiommu; struct device_node *np; - int num_iommus, i; + int num_iommus, i, ret; /* * Allocate the per-device iommu structure for DT-based devices. @@ -1663,22 +1663,22 @@ static struct iommu_device *omap_iommu_probe_device(struct device *dev) for (i = 0, tmp = arch_data; i < num_iommus; i++, tmp++) { np = of_parse_phandle(dev->of_node, "iommus", i); if (!np) { - kfree(arch_data); - return ERR_PTR(-EINVAL); + ret = -EINVAL; + goto err_put_iommus; } pdev = of_find_device_by_node(np); if (!pdev) { of_node_put(np); - kfree(arch_data); - return ERR_PTR(-ENODEV); + ret = -ENODEV; + goto err_put_iommus; } oiommu = platform_get_drvdata(pdev); if (!oiommu) { of_node_put(np); - kfree(arch_data); - return ERR_PTR(-EINVAL); + ret = -EINVAL; + goto err_put_iommus; } tmp->iommu_dev = oiommu; @@ -1697,17 +1697,28 @@ static struct iommu_device *omap_iommu_probe_device(struct device *dev) oiommu = arch_data->iommu_dev; return &oiommu->iommu; + +err_put_iommus: + for (tmp = arch_data; tmp->dev; tmp++) + put_device(tmp->dev); + + kfree(arch_data); + + return ERR_PTR(ret); } static void omap_iommu_release_device(struct device *dev) { struct omap_iommu_arch_data *arch_data = dev_iommu_priv_get(dev); + struct omap_iommu_arch_data *tmp; if (!dev->of_node || !arch_data) return; - kfree(arch_data); + for (tmp = arch_data; tmp->dev; tmp++) + put_device(tmp->dev); + kfree(arch_data); } static int omap_iommu_of_xlate(struct device *dev, const struct of_phandle_args *args) -- 2.49.1

1 month

2
2
0 0

Linux 6.16.10

by Greg Kroah-Hartman

I'm announcing the release of the 6.16.10 kernel. All users of the 6.16 kernel series must upgrade. The updated 6.16.y git tree can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-6.16.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/laptops/lg-laptop.rst | 4 Makefile | 2 arch/arm/boot/dts/intel/socfpga/socfpga_cyclone5_sodia.dts | 6 arch/arm/boot/dts/marvell/kirkwood-openrd-client.dts | 2 arch/arm64/boot/dts/freescale/imx8mp.dtsi | 4 arch/arm64/boot/dts/marvell/cn9130-cf.dtsi | 7 arch/arm64/boot/dts/marvell/cn9131-cf-solidwan.dts | 6 arch/arm64/boot/dts/marvell/cn9132-clearfog.dts | 22 arch/arm64/boot/dts/marvell/cn9132-sr-cex7.dtsi | 8 arch/arm64/boot/dts/rockchip/rk3588s-orangepi-5.dtsi | 3 arch/riscv/include/asm/pgtable.h | 17 arch/x86/Kconfig | 2 arch/x86/include/asm/topology.h | 10 arch/x86/kernel/cpu/topology.c | 13 drivers/cpufreq/cpufreq.c | 20 drivers/firewire/core-cdev.c | 2 drivers/gpio/gpio-regmap.c | 2 drivers/gpio/gpiolib-acpi-quirks.c | 14 drivers/gpio/gpiolib.c | 21 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 44 drivers/gpu/drm/amd/amdkfd/kfd_topology.c | 3 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 12 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h | 7 drivers/gpu/drm/amd/display/dc/dc.h | 1 drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c | 6 drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c | 6 drivers/gpu/drm/ast/ast_dp.c | 2 drivers/gpu/drm/gma500/oaktrail_hdmi.c | 2 drivers/gpu/drm/i915/display/intel_ddi.c | 5 drivers/gpu/drm/panfrost/panfrost_drv.c | 61 - drivers/gpu/drm/panthor/panthor_sched.c | 8 drivers/gpu/drm/xe/abi/guc_actions_abi.h | 5 drivers/gpu/drm/xe/abi/guc_klvs_abi.h | 40 drivers/gpu/drm/xe/xe_bo_evict.c | 4 drivers/gpu/drm/xe/xe_configfs.c | 2 drivers/gpu/drm/xe/xe_device_sysfs.c | 2 drivers/gpu/drm/xe/xe_gt.c | 3 drivers/gpu/drm/xe/xe_guc.c | 62 - drivers/gpu/drm/xe/xe_guc.h | 1 drivers/gpu/drm/xe/xe_guc_submit.c | 87 - drivers/gpu/drm/xe/xe_guc_submit.h | 2 drivers/gpu/drm/xe/xe_uc.c | 4 drivers/hid/amd-sfh-hid/amd_sfh_client.c | 12 drivers/hid/amd-sfh-hid/amd_sfh_common.h | 3 drivers/hid/amd-sfh-hid/amd_sfh_pcie.c | 4 drivers/hid/hid-asus.c | 3 drivers/hid/hid-cp2112.c | 10 drivers/hid/hid-multitouch.c | 45 drivers/hid/intel-thc-hid/intel-quickspi/pci-quickspi.c | 2 drivers/hid/intel-thc-hid/intel-quickspi/quickspi-dev.h | 2 drivers/i2c/busses/i2c-designware-platdrv.c | 7 drivers/infiniband/hw/mlx5/devx.c | 1 drivers/iommu/iommufd/eventq.c | 9 drivers/iommu/iommufd/main.c | 35 drivers/mmc/host/sdhci-cadence.c | 11 drivers/net/can/rcar/rcar_can.c | 8 drivers/net/can/spi/hi311x.c | 1 drivers/net/can/sun4i_can.c | 1 drivers/net/can/usb/etas_es58x/es58x_core.c | 3 drivers/net/can/usb/mcba_usb.c | 1 drivers/net/can/usb/peak_usb/pcan_usb_core.c | 2 drivers/net/dsa/lantiq_gswip.c | 21 drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c | 2 drivers/net/ethernet/freescale/fec_main.c | 4 drivers/net/ethernet/intel/i40e/i40e.h | 3 drivers/net/ethernet/intel/i40e/i40e_main.c | 26 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 110 + drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h | 3 drivers/net/ethernet/marvell/octeontx2/af/cgx.c | 3 drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c | 2 drivers/net/ethernet/mellanox/mlx5/core/en_stats.c | 1 drivers/net/ethernet/mellanox/mlx5/core/fs_core.c | 2 drivers/net/ethernet/mellanox/mlx5/core/fs_core.h | 1 drivers/net/ethernet/mellanox/mlx5/core/fs_counters.c | 25 drivers/net/ethernet/mellanox/mlx5/core/steering/hws/action.c | 7 drivers/net/ethernet/mellanox/mlx5/core/steering/hws/fs_hws.c | 18 drivers/net/ethernet/mellanox/mlx5/core/steering/hws/fs_hws_pools.c | 8 drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws.h | 7 drivers/net/phy/bcm-phy-ptp.c | 6 drivers/net/phy/sfp.c | 24 drivers/net/tun.c | 3 drivers/net/wireless/intel/iwlwifi/pcie/tx.c | 3 drivers/net/wireless/virtual/virt_wifi.c | 4 drivers/pinctrl/mediatek/pinctrl-airoha.c | 31 drivers/platform/x86/lg-laptop.c | 34 drivers/platform/x86/oxpec.c | 7 drivers/spi/spi-cadence-quadspi.c | 90 + drivers/ufs/core/ufs-mcq.c | 4 drivers/usb/core/quirks.c | 2 drivers/vhost/net.c | 33 drivers/video/fbdev/core/fbcon.c | 13 fs/afs/server.c | 3 fs/btrfs/volumes.c | 5 fs/hugetlbfs/inode.c | 10 fs/netfs/buffered_read.c | 10 fs/netfs/direct_read.c | 7 fs/netfs/direct_write.c | 6 fs/netfs/internal.h | 1 fs/netfs/objects.c | 30 fs/netfs/read_pgpriv2.c | 2 fs/netfs/read_single.c | 2 fs/netfs/write_issue.c | 3 fs/nfs/file.c | 33 fs/nfs/inode.c | 9 fs/nfs/internal.h | 2 fs/nfs/nfs42proc.c | 33 fs/nfs/nfstrace.h | 1 fs/proc/task_mmu.c | 3 fs/smb/client/smb2inode.c | 2 fs/smb/server/transport_rdma.c | 22 include/crypto/if_alg.h | 2 include/linux/firmware/imx/sm.h | 47 include/linux/mlx5/fs.h | 2 include/net/bluetooth/hci_core.h | 21 kernel/bpf/core.c | 5 kernel/bpf/verifier.c | 6 kernel/fork.c | 2 kernel/futex/requeue.c | 6 kernel/sched/ext_idle.c | 52 kernel/sched/ext_idle.h | 7 kernel/trace/fgraph.c | 12 kernel/trace/fprobe.c | 7 kernel/trace/trace_dynevent.c | 4 kernel/trace/trace_osnoise.c | 3 kernel/vhost_task.c | 3 mm/damon/sysfs.c | 4 mm/kmsan/core.c | 10 mm/kmsan/kmsan_test.c | 16 net/bluetooth/hci_event.c | 30 net/bluetooth/hci_sync.c | 7 net/bluetooth/mgmt.c | 259 +++- net/bluetooth/mgmt_util.c | 46 net/bluetooth/mgmt_util.h | 3 net/core/skbuff.c | 2 net/ipv4/nexthop.c | 7 net/smc/smc_loopback.c | 14 net/xfrm/xfrm_device.c | 2 net/xfrm/xfrm_state.c | 3 sound/pci/hda/patch_realtek.c | 11 sound/soc/intel/boards/sof_es8336.c | 10 sound/soc/intel/boards/sof_rt5682.c | 7 sound/soc/intel/common/soc-acpi-intel-ptl-match.c | 32 sound/usb/mixer_quirks.c | 571 +++++++--- sound/usb/quirks.c | 24 sound/usb/usbaudio.h | 4 tools/testing/selftests/bpf/prog_tests/free_timer.c | 4 tools/testing/selftests/bpf/prog_tests/timer.c | 4 tools/testing/selftests/bpf/prog_tests/timer_crash.c | 4 tools/testing/selftests/bpf/prog_tests/timer_lockup.c | 4 tools/testing/selftests/bpf/prog_tests/timer_mim.c | 4 tools/testing/selftests/filesystems/mount-notify/mount-notify_test.c | 17 tools/testing/selftests/filesystems/mount-notify/mount-notify_test_ns.c | 18 tools/testing/selftests/net/fib_nexthops.sh | 12 153 files changed, 1832 insertions(+), 851 deletions(-) Adrián Larumbe (1): drm/panthor: Defer scheduler entitiy destruction to queue release Akinobu Mita (1): mm/damon/sysfs: do not ignore callback's return value in damon_sysfs_damon_call() Aleksander Jan Bajkowski (1): net: sfp: add quirk for FLYPRO copper SFP+ module Alexander Popov (1): x86/Kconfig: Reenable PTDUMP on i386 Alexandre Ghiti (1): riscv: Use an atomic xchg in pudp_huge_get_and_clear() Alok Tiwari (2): scsi: ufs: mcq: Fix memory allocation checks for SQE and CQE bnxt_en: correct offset handling for IPv6 destination address Amit Chaudhari (1): HID: asus: add support for missing PX series fn keys Andrea Righi (2): sched_ext: idle: Make local functions static in ext_idle.c sched_ext: idle: Handle migration-disabled tasks in BPF code Antheas Kapenekakis (1): platform/x86: oxpec: Add support for OneXPlayer X1 Mini Pro (Strix Point) Balamurugan C (3): ASoC: Intel: soc-acpi: Add entry for sof_es8336 in PTL match table. ASoC: Intel: soc-acpi: Add entry for HDMI_In capture support in PTL match table ASoC: Intel: sof_rt5682: Add HDMI-In capture with rt5682 support for PTL. Basavaraj Natikar (1): HID: amd_sfh: Add sync across amd sfh work functions Benoît Monin (1): mmc: sdhci-cadence: add Mobileye eyeQ support Carolina Jubran (1): net/mlx5e: Fix missing FEC RS stats for RS_544_514_INTERLEAVED_QUAD Chen Ni (1): ALSA: usb-audio: Convert comma to semicolon Chris Morgan (1): net: sfp: add quirk for Potron SFP+ XGSPON ONU Stick Christian Loehle (1): cpufreq: Initialize cpufreq-based invariance before subsys Christian Marangi (2): pinctrl: airoha: fix wrong PHY LED mux value for LED1 GPIO46 pinctrl: airoha: fix wrong MDIO function bitmaks Cristian Ciocaltea (8): ALSA: usb-audio: Fix code alignment in mixer_quirks ALSA: usb-audio: Fix whitespace & blank line issues in mixer_quirks ALSA: usb-audio: Fix block comments in mixer_quirks ALSA: usb-audio: Drop unnecessary parentheses in mixer_quirks ALSA: usb-audio: Avoid multiple assignments in mixer_quirks ALSA: usb-audio: Simplify NULL comparison in mixer_quirks ALSA: usb-audio: Remove unneeded wmb() in mixer_quirks ALSA: usb-audio: Add mixer quirk for Sony DualSense PS5 Cryolitia PukNgae (1): ALSA: usb-audio: move mixer_quirks' min_mute into common quirk Dan Carpenter (1): octeontx2-pf: Fix potential use after free in otx2_tc_add_flow() Daniel Lee (1): platform/x86: lg-laptop: Fix WMAB call in fan_mode_store() Eric Biggers (2): crypto: af_alg - Fix incorrect boolean values in af_alg_ctx kmsan: fix out-of-bounds access to shadow memory Eric Huang (1): drm/amdkfd: fix p2p links bug in topology Geert Uytterhoeven (1): can: rcar_can: rcar_can_resume(): fix s2ram with PSCI Greg Kroah-Hartman (1): Linux 6.16.10 Hans de Goede (1): gpiolib: Extend software-node support to support secondary software-nodes Heikki Krogerus (1): i2c: designware: Add quirk for Intel Xe Ido Schimmel (2): nexthop: Forbid FDB status change while nexthop is in a group selftests: fib_nexthops: Fix creation of non-FDB nexthops Ioana Ciornei (1): gpio: regmap: fix memory leak of gpio_regmap structure Jacob Keller (2): broadcom: fix support for PTP_PEROUT_DUTY_CYCLE broadcom: fix support for PTP_EXTTS_REQUEST2 ioctl Jakub Acs (1): fs/proc/task_mmu: check p->vec_buf for NULL James Guan (1): wifi: virt_wifi: Fix page fault on connect Jason Baron (1): net: allow alloc_skb_with_frags() to use MAX_SKB_FRAGS Jason Gunthorpe (1): iommufd: Fix race during abort for file descriptors Jason Wang (1): vhost-net: flush batched before enabling notifications Jiayi Li (1): usb: core: Add 0x prefix to quirks debug output Jihed Chaibi (1): ARM: dts: kirkwood: Fix sound DAI cells for OpenRD clients Jimmy Hon (1): arm64: dts: rockchip: Fix the headphone detection on the orangepi 5 Jinjiang Tu (1): mm/hugetlb: fix folio is still mapped when deleted Jiri Olsa (1): bpf: Check the helper function is valid in get_helper_proto Johannes Berg (2): wifi: iwlwifi: fix byte count table for old devices wifi: iwlwifi: pcie: fix byte count table for some devices Josua Mayer (3): arm64: dts: marvell: cn913x-solidrun: fix sata ports status arm64: dts: marvell: cn9132-clearfog: disable eMMC high-speed modes arm64: dts: marvell: cn9132-clearfog: fix multi-lane pci x2 and x4 ports Kerem Karabay (4): HID: multitouch: Get the contact ID from HID_DG_TRANSDUCER_INDEX fields in case of Apple Touch Bar HID: multitouch: support getting the tip state from HID_DG_TOUCH fields in Apple Touch Bar HID: multitouch: take cls->maxcontacts into account for Apple Touch Bar even without a HID_DG_CONTACTMAX field HID: multitouch: specify that Apple Touch Bar is direct Khairul Anuar Romli (2): spi: cadence-quadspi: Implement refcount to handle unbind during busy spi: cadence-qspi: defer runtime support on socfpga if reset bit is enabled Leon Hwang (2): bpf: Reject bpf_timer for PREEMPT_RT selftests/bpf: Skip timer cases when bpf_timer is not supported Louis-Alexis Eyraud (3): drm/panfrost: Drop duplicated Mediatek supplies arrays drm/panfrost: Commonize Mediatek power domain array definitions drm/panfrost: Add support for Mali on the MT8370 SoC Lucas De Marchi (1): drm/xe: Fix build with CONFIG_MODULES=n Luiz Augusto von Dentz (4): Bluetooth: hci_sync: Fix hci_resume_advertising_sync Bluetooth: hci_event: Fix UAF in hci_conn_tx_dequeue Bluetooth: hci_event: Fix UAF in hci_acl_create_conn_sync Bluetooth: MGMT: Fix possible UAFs Lukasz Czapnik (8): i40e: add validation for ring_len param i40e: fix idx validation in i40e_validate_queue_map i40e: fix idx validation in config queues msg i40e: fix input validation logic for action_meta i40e: fix validation of VF state in get resources i40e: add max boundary check for VF filters i40e: add mask to apply valid bits for itr_idx i40e: improve VF MAC filters accounting Marc Kleine-Budde (1): net: fec: rename struct fec_devinfo fec_imx6x_info -> fec_imx6sx_info Mario Limonciello (AMD) (1): gpiolib: acpi: Add quirk for ASUS ProArt PX13 Mark Harmstone (1): btrfs: don't allow adding block device of less than 1 MB Masami Hiramatsu (Google) (3): tracing: dynevent: Add a missing lockdown check on dynevent tracing: fgraph: Protect return handler from recursion loop tracing: fprobe: Fix to remove recorded module addresses from filter Matthew Schwartz (1): drm/amd/display: Only restore backlight after amdgpu_dm_init or dm_resume Max Kellermann (1): netfs: fix reference leak Melissa Wen (1): drm/amd/display: remove output_tf_change flag Michael S. Tsirkin (1): Revert "vhost/net: Defer TX queue re-enable until after sendmsg" Michal Wajdeczko (1): drm/xe/vf: Don't expose sysfs attributes not applicable for VFs Moshe Shemesh (1): net/mlx5: fs, fix UAF in flow counter release Nirmoy Das (1): drm/ast: Use msleep instead of mdelay for edid read Nobuhiro Iwamatsu (1): ARM: dts: socfpga: sodia: Fix mdio bus probe and PHY address Or Har-Toov (1): IB/mlx5: Fix obj_type mismatch for SRQ event subscriptions Peng Fan (4): firmware: imx: Add stub functions for SCMI MISC API firmware: imx: Add stub functions for SCMI LMM API firmware: imx: Add stub functions for SCMI CPU API arm64: dts: imx8mp: Correct thermal sensor index Petr Malat (1): ethernet: rvu-af: Remove slash from the driver name Sabrina Dubroca (2): xfrm: xfrm_alloc_spi shouldn't use 0 as SPI xfrm: fix offloading of cross-family tunnels Samasth Norway Ananda (1): fbcon: fix integer overflow in fbcon_do_set_font Sang-Heon Jeon (1): smb: client: fix wrong index reference in smb2_compound_op() Sasha Levin (2): Revert "drm/xe/guc: Set RCS/CCS yield policy" Revert "drm/xe/guc: Enable extended CAT error reporting" Sebastian Andrzej Siewior (3): vhost: Take a reference on the task in struct vhost_task. futex: Prevent use-after-free during requeue-PI futex: Use correct exit on failure from futex_hash_allocate_default() Sidraya Jayagond (1): net/smc: fix warning in smc_rx_splice() when calling get_page() Stefan Binding (1): ALSA: hda/realtek: Add support for ASUS NUC using CS35L41 HDA Stefan Metzmacher (2): smb: server: don't use delayed_work for post_recv_credits_work smb: server: use disable_work_sync in transport_rdma.c Stéphane Grosjean (1): can: peak_usb: fix shift-out-of-bounds issue Suraj Kandpal (1): drm/i915/ddi: Guard reg_val against a INVALID_TRANSCODER Sébastien Szymanski (1): HID: cp2112: fix setter callbacks return value Takashi Iwai (1): ALSA: usb-audio: Fix build with CONFIG_INPUT=n Takashi Sakamoto (1): firewire: core: fix overlooked update of subsystem ABI version Thomas Gleixner (1): x86/topology: Implement topology_is_core_online() to address SMT regression Thomas Hellström (1): drm/xe: Don't copy pinned kernel bos twice on suspend Thomas Zimmermann (1): fbcon: Fix OOB access in font allocation Trond Myklebust (2): NFS: Protect against 'eof page pollution' NFSv4.2: Protect copy offload and clone against 'eof page pollution' Vincent Mailhol (4): can: etas_es58x: populate ndo_change_mtu() to prevent buffer overflow can: hi311x: populate ndo_change_mtu() to prevent buffer overflow can: sun4i_can: populate ndo_change_mtu() to prevent buffer overflow can: mcba_usb: populate ndo_change_mtu() to prevent buffer overflow Vlad Dogaru (1): net/mlx5: HWS, remove unused create_dest_array parameter Vladimir Oltean (2): net: dsa: lantiq_gswip: move gswip_add_single_port_br() call to port_setup() net: dsa: lantiq_gswip: suppress -EINVAL errors for bridge FDB entries added to the CPU port Wang Liang (2): net: tun: Update napi->skb after XDP process tracing/osnoise: Fix slab-out-of-bounds in _parse_integer_limit() Xing Guo (1): selftests/fs/mount-notify: Fix compilation failure. Xinpeng Sun (1): HID: intel-thc-hid: intel-quickspi: Add WCL Device IDs Yevgeny Kliteynik (1): net/mlx5: HWS, ignore flow level for multi-dest table Yifan Zhang (1): amd/amdkfd: correct mem limit calculation for small APUs Zabelin Nikita (1): drm/gma500: Fix null dereference in hdmi teardown Zhen Ni (1): afs: Fix potential null pointer dereference in afs_put_server noble.yang (1): ALSA: usb-audio: Add DSD support for Comtrue USB Audio device qaqland (1): ALSA: usb-audio: Add mute TLV for playback volumes on more devices

1 month

1
1
0 0

Linux 6.12.50

by Greg Kroah-Hartman

I'm announcing the release of the 6.12.50 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/laptops/lg-laptop.rst | 4 Makefile | 2 arch/arm/boot/dts/intel/socfpga/socfpga_cyclone5_sodia.dts | 6 arch/arm/boot/dts/marvell/kirkwood-openrd-client.dts | 2 arch/arm64/boot/dts/freescale/imx8mp.dtsi | 4 arch/arm64/boot/dts/marvell/cn9132-clearfog.dts | 16 arch/arm64/boot/dts/marvell/cn9132-sr-cex7.dtsi | 8 drivers/cpufreq/cpufreq.c | 20 drivers/firewire/core-cdev.c | 2 drivers/gpio/gpiolib.c | 21 drivers/gpu/drm/ast/ast_dp.c | 2 drivers/gpu/drm/gma500/oaktrail_hdmi.c | 2 drivers/gpu/drm/i915/display/intel_backlight.c | 5 drivers/gpu/drm/panthor/panthor_sched.c | 8 drivers/hid/amd-sfh-hid/amd_sfh_client.c | 12 drivers/hid/amd-sfh-hid/amd_sfh_common.h | 3 drivers/hid/amd-sfh-hid/amd_sfh_pcie.c | 4 drivers/hid/hid-asus.c | 3 drivers/i2c/busses/i2c-designware-platdrv.c | 7 drivers/infiniband/hw/mlx5/devx.c | 1 drivers/iommu/iommufd/fault.c | 4 drivers/iommu/iommufd/main.c | 34 drivers/mmc/host/sdhci-cadence.c | 11 drivers/net/can/rcar/rcar_can.c | 8 drivers/net/can/spi/hi311x.c | 1 drivers/net/can/sun4i_can.c | 1 drivers/net/can/usb/etas_es58x/es58x_core.c | 3 drivers/net/can/usb/mcba_usb.c | 1 drivers/net/can/usb/peak_usb/pcan_usb_core.c | 2 drivers/net/dsa/lantiq_gswip.c | 21 drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c | 2 drivers/net/ethernet/freescale/fec_main.c | 4 drivers/net/ethernet/intel/i40e/i40e.h | 3 drivers/net/ethernet/intel/i40e/i40e_main.c | 26 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 110 +- drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h | 3 drivers/net/ethernet/marvell/octeontx2/af/cgx.c | 3 drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c | 2 drivers/net/phy/sfp.c | 24 drivers/net/tun.c | 3 drivers/net/wireless/virtual/virt_wifi.c | 4 drivers/platform/x86/lg-laptop.c | 34 drivers/ufs/core/ufs-mcq.c | 4 drivers/usb/core/quirks.c | 2 drivers/usb/host/xhci-dbgcap.c | 2 drivers/usb/host/xhci-mem.c | 50 - drivers/usb/host/xhci.c | 2 drivers/usb/host/xhci.h | 6 drivers/video/fbdev/core/fbcon.c | 13 fs/afs/server.c | 3 fs/btrfs/volumes.c | 5 fs/hugetlbfs/inode.c | 10 fs/proc/task_mmu.c | 3 fs/smb/client/smb2inode.c | 2 fs/smb/server/transport_rdma.c | 22 include/crypto/if_alg.h | 2 include/linux/firmware/imx/sm.h | 12 include/linux/swap.h | 10 include/net/bluetooth/hci_core.h | 21 kernel/bpf/core.c | 5 kernel/bpf/verifier.c | 6 kernel/futex/requeue.c | 6 kernel/trace/trace_dynevent.c | 4 kernel/vhost_task.c | 3 mm/gup.c | 15 mm/kmsan/core.c | 10 mm/kmsan/kmsan_test.c | 16 mm/mlock.c | 6 mm/swap.c | 51 - net/bluetooth/hci_event.c | 26 net/bluetooth/hci_sync.c | 7 net/core/skbuff.c | 2 net/ipv4/nexthop.c | 7 net/smc/smc_loopback.c | 14 net/xfrm/xfrm_state.c | 3 sound/pci/hda/patch_realtek.c | 11 sound/usb/mixer_quirks.c | 545 +++++++++---- sound/usb/quirks.c | 24 sound/usb/usbaudio.h | 4 tools/testing/selftests/net/fib_nexthops.sh | 12 80 files changed, 999 insertions(+), 383 deletions(-) Adrián Larumbe (1): drm/panthor: Defer scheduler entitiy destruction to queue release Aleksander Jan Bajkowski (1): net: sfp: add quirk for FLYPRO copper SFP+ module Alok Tiwari (2): scsi: ufs: mcq: Fix memory allocation checks for SQE and CQE bnxt_en: correct offset handling for IPv6 destination address Amit Chaudhari (1): HID: asus: add support for missing PX series fn keys Basavaraj Natikar (1): HID: amd_sfh: Add sync across amd sfh work functions Benoît Monin (1): mmc: sdhci-cadence: add Mobileye eyeQ support Chen Ni (1): ALSA: usb-audio: Convert comma to semicolon Chris Morgan (1): net: sfp: add quirk for Potron SFP+ XGSPON ONU Stick Christian Loehle (1): cpufreq: Initialize cpufreq-based invariance before subsys Cristian Ciocaltea (7): ALSA: usb-audio: Fix code alignment in mixer_quirks ALSA: usb-audio: Fix block comments in mixer_quirks ALSA: usb-audio: Drop unnecessary parentheses in mixer_quirks ALSA: usb-audio: Avoid multiple assignments in mixer_quirks ALSA: usb-audio: Simplify NULL comparison in mixer_quirks ALSA: usb-audio: Remove unneeded wmb() in mixer_quirks ALSA: usb-audio: Add mixer quirk for Sony DualSense PS5 Cryolitia PukNgae (1): ALSA: usb-audio: move mixer_quirks' min_mute into common quirk Dan Carpenter (1): octeontx2-pf: Fix potential use after free in otx2_tc_add_flow() Daniel Lee (1): platform/x86: lg-laptop: Fix WMAB call in fan_mode_store() Eric Biggers (2): crypto: af_alg - Fix incorrect boolean values in af_alg_ctx kmsan: fix out-of-bounds access to shadow memory Geert Uytterhoeven (1): can: rcar_can: rcar_can_resume(): fix s2ram with PSCI Greg Kroah-Hartman (1): Linux 6.12.50 Guenter Roeck (1): drm/i915/backlight: Return immediately when scale() finds invalid parameters Hans de Goede (1): gpiolib: Extend software-node support to support secondary software-nodes Heikki Krogerus (1): i2c: designware: Add quirk for Intel Xe Hugh Dickins (3): mm/gup: local lru_add_drain() to avoid lru_add_drain_all() mm: revert "mm/gup: clear the LRU flag of a page before adding to LRU batch" mm: folio_may_be_lru_cached() unless folio_test_large() Ido Schimmel (2): nexthop: Forbid FDB status change while nexthop is in a group selftests: fib_nexthops: Fix creation of non-FDB nexthops Jakub Acs (1): fs/proc/task_mmu: check p->vec_buf for NULL James Guan (1): wifi: virt_wifi: Fix page fault on connect Jason Baron (1): net: allow alloc_skb_with_frags() to use MAX_SKB_FRAGS Jason Gunthorpe (1): iommufd: Fix race during abort for file descriptors Jiayi Li (1): usb: core: Add 0x prefix to quirks debug output Jihed Chaibi (1): ARM: dts: kirkwood: Fix sound DAI cells for OpenRD clients Jinjiang Tu (1): mm/hugetlb: fix folio is still mapped when deleted Jiri Olsa (1): bpf: Check the helper function is valid in get_helper_proto Josua Mayer (2): arm64: dts: marvell: cn9132-clearfog: disable eMMC high-speed modes arm64: dts: marvell: cn9132-clearfog: fix multi-lane pci x2 and x4 ports Leon Hwang (1): bpf: Reject bpf_timer for PREEMPT_RT Luiz Augusto von Dentz (2): Bluetooth: hci_sync: Fix hci_resume_advertising_sync Bluetooth: hci_event: Fix UAF in hci_acl_create_conn_sync Lukasz Czapnik (8): i40e: add validation for ring_len param i40e: fix idx validation in i40e_validate_queue_map i40e: fix idx validation in config queues msg i40e: fix input validation logic for action_meta i40e: fix validation of VF state in get resources i40e: add max boundary check for VF filters i40e: add mask to apply valid bits for itr_idx i40e: improve VF MAC filters accounting Marc Kleine-Budde (1): net: fec: rename struct fec_devinfo fec_imx6x_info -> fec_imx6sx_info Mark Harmstone (1): btrfs: don't allow adding block device of less than 1 MB Masami Hiramatsu (Google) (1): tracing: dynevent: Add a missing lockdown check on dynevent Niklas Neronin (1): Revert "usb: xhci: remove option to change a default ring's TRB cycle bit" Nirmoy Das (1): drm/ast: Use msleep instead of mdelay for edid read Nobuhiro Iwamatsu (1): ARM: dts: socfpga: sodia: Fix mdio bus probe and PHY address Or Har-Toov (1): IB/mlx5: Fix obj_type mismatch for SRQ event subscriptions Peng Fan (2): firmware: imx: Add stub functions for SCMI MISC API arm64: dts: imx8mp: Correct thermal sensor index Petr Malat (1): ethernet: rvu-af: Remove slash from the driver name Sabrina Dubroca (1): xfrm: xfrm_alloc_spi shouldn't use 0 as SPI Samasth Norway Ananda (1): fbcon: fix integer overflow in fbcon_do_set_font Sang-Heon Jeon (1): smb: client: fix wrong index reference in smb2_compound_op() Sebastian Andrzej Siewior (2): vhost: Take a reference on the task in struct vhost_task. futex: Prevent use-after-free during requeue-PI Sidraya Jayagond (1): net/smc: fix warning in smc_rx_splice() when calling get_page() Stefan Binding (1): ALSA: hda/realtek: Add support for ASUS NUC using CS35L41 HDA Stefan Metzmacher (2): smb: server: don't use delayed_work for post_recv_credits_work smb: server: use disable_work_sync in transport_rdma.c Stéphane Grosjean (1): can: peak_usb: fix shift-out-of-bounds issue Takashi Iwai (1): ALSA: usb-audio: Fix build with CONFIG_INPUT=n Takashi Sakamoto (1): firewire: core: fix overlooked update of subsystem ABI version Thomas Zimmermann (1): fbcon: Fix OOB access in font allocation Vincent Mailhol (4): can: etas_es58x: populate ndo_change_mtu() to prevent buffer overflow can: hi311x: populate ndo_change_mtu() to prevent buffer overflow can: sun4i_can: populate ndo_change_mtu() to prevent buffer overflow can: mcba_usb: populate ndo_change_mtu() to prevent buffer overflow Vladimir Oltean (2): net: dsa: lantiq_gswip: move gswip_add_single_port_br() call to port_setup() net: dsa: lantiq_gswip: suppress -EINVAL errors for bridge FDB entries added to the CPU port Wang Liang (1): net: tun: Update napi->skb after XDP process Zabelin Nikita (1): drm/gma500: Fix null dereference in hdmi teardown Zhen Ni (1): afs: Fix potential null pointer dereference in afs_put_server noble.yang (1): ALSA: usb-audio: Add DSD support for Comtrue USB Audio device qaqland (1): ALSA: usb-audio: Add mute TLV for playback volumes on more devices

1 month

1
1
0 0

Linux 6.6.109

by Greg Kroah-Hartman

I'm announcing the release of the 6.6.109 kernel. All users of the 6.6 kernel series must upgrade. The updated 6.6.y git tree can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-6.6.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 ------------ Makefile | 2 arch/arm/boot/dts/intel/socfpga/socfpga_cyclone5_sodia.dts | 6 arch/arm/boot/dts/marvell/kirkwood-openrd-client.dts | 2 arch/arm/mach-bcm/Kconfig | 1 arch/arm64/boot/dts/freescale/imx8mp.dtsi | 4 arch/s390/kernel/perf_cpum_cf.c | 4 arch/um/drivers/mconsole_user.c | 2 drivers/block/loop.c | 40 + drivers/cpufreq/cpufreq.c | 20 drivers/edac/skx_common.h | 1 drivers/firewire/core-cdev.c | 2 drivers/gpio/gpiolib.c | 19 drivers/gpu/drm/amd/amdgpu/amdgpu.h | 2 drivers/gpu/drm/amd/display/modules/hdcp/hdcp_ddc.c | 2 drivers/gpu/drm/amd/pm/powerplay/hwmgr/ppevvmath.h | 14 drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c | 2 drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c | 3 drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c | 3 drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c | 2 drivers/gpu/drm/ast/ast_dp.c | 2 drivers/gpu/drm/gma500/oaktrail_hdmi.c | 2 drivers/gpu/drm/i915/display/intel_backlight.c | 5 drivers/gpu/drm/radeon/evergreen_cs.c | 2 drivers/hid/hid-asus.c | 3 drivers/hwmon/adt7475.c | 24 drivers/i2c/busses/i2c-designware-platdrv.c | 7 drivers/infiniband/hw/mlx5/devx.c | 1 drivers/input/touchscreen/cyttsp4_core.c | 2 drivers/irqchip/irq-sun6i-r.c | 2 drivers/media/dvb-frontends/stv0367_priv.h | 3 drivers/mmc/host/sdhci-cadence.c | 11 drivers/net/can/rcar/rcar_can.c | 8 drivers/net/can/spi/hi311x.c | 1 drivers/net/can/sun4i_can.c | 1 drivers/net/can/usb/etas_es58x/es58x_core.c | 3 drivers/net/can/usb/etas_es58x/es58x_devlink.c | 2 drivers/net/can/usb/mcba_usb.c | 1 drivers/net/can/usb/peak_usb/pcan_usb_core.c | 2 drivers/net/dsa/lantiq_gswip.c | 37 - drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c | 2 drivers/net/ethernet/intel/i40e/i40e.h | 4 drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 25 drivers/net/ethernet/intel/i40e/i40e_main.c | 26 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 110 ++- drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h | 3 drivers/net/ethernet/marvell/octeontx2/af/cgx.c | 3 drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c | 2 drivers/net/fjes/fjes_main.c | 4 drivers/net/wireless/virtual/virt_wifi.c | 4 drivers/nfc/pn544/i2c.c | 2 drivers/platform/x86/sony-laptop.c | 1 drivers/scsi/isci/init.c | 6 drivers/staging/media/atomisp/pci/hive_isp_css_include/math_support.h | 5 drivers/ufs/core/ufs-mcq.c | 4 drivers/usb/core/quirks.c | 2 drivers/video/fbdev/core/fbcon.c | 13 fs/afs/server.c | 3 fs/btrfs/tree-checker.c | 2 fs/hugetlbfs/inode.c | 10 fs/smb/client/smb2inode.c | 2 fs/smb/server/transport_rdma.c | 18 include/crypto/if_alg.h | 2 include/linux/compiler.h | 9 include/linux/minmax.h | 220 ++++--- include/linux/mm.h | 55 + include/linux/swap.h | 10 include/net/bluetooth/hci_core.h | 21 kernel/bpf/verifier.c | 4 kernel/futex/requeue.c | 6 kernel/trace/preemptirq_delay_test.c | 2 kernel/trace/trace_dynevent.c | 4 kernel/vhost_task.c | 3 lib/btree.c | 1 lib/decompress_unlzma.c | 2 lib/vsprintf.c | 2 mm/gup.c | 28 mm/kmsan/core.c | 10 mm/kmsan/kmsan_test.c | 16 mm/migrate_device.c | 42 - mm/mlock.c | 6 mm/swap.c | 4 mm/zsmalloc.c | 2 net/bluetooth/hci_event.c | 26 net/bluetooth/hci_sync.c | 7 net/core/skbuff.c | 2 net/ipv4/nexthop.c | 7 net/xfrm/xfrm_state.c | 3 sound/usb/mixer_quirks.c | 295 +++++++++- sound/usb/quirks.c | 24 sound/usb/usbaudio.h | 4 tools/testing/selftests/mm/mremap_test.c | 2 tools/testing/selftests/net/fib_nexthops.sh | 12 tools/testing/selftests/seccomp/seccomp_bpf.c | 2 93 files changed, 984 insertions(+), 350 deletions(-) Alok Tiwari (2): scsi: ufs: mcq: Fix memory allocation checks for SQE and CQE bnxt_en: correct offset handling for IPv6 destination address Amit Chaudhari (1): HID: asus: add support for missing PX series fn keys Benoît Monin (1): mmc: sdhci-cadence: add Mobileye eyeQ support Chen Ni (1): ALSA: usb-audio: Convert comma to semicolon Christian Loehle (1): cpufreq: Initialize cpufreq-based invariance before subsys Cristian Ciocaltea (6): ALSA: usb-audio: Fix block comments in mixer_quirks ALSA: usb-audio: Drop unnecessary parentheses in mixer_quirks ALSA: usb-audio: Avoid multiple assignments in mixer_quirks ALSA: usb-audio: Simplify NULL comparison in mixer_quirks ALSA: usb-audio: Remove unneeded wmb() in mixer_quirks ALSA: usb-audio: Add mixer quirk for Sony DualSense PS5 Cryolitia PukNgae (1): ALSA: usb-audio: move mixer_quirks' min_mute into common quirk Dan Carpenter (1): octeontx2-pf: Fix potential use after free in otx2_tc_add_flow() David Hildenbrand (2): mm/gup: revert "mm: gup: fix infinite loop within __get_longterm_locked" mm/migrate_device: don't add folio to be freed to LRU in migrate_device_finalize() David Laight (7): minmax.h: add whitespace around operators and after commas minmax.h: update some comments minmax.h: reduce the #define expansion of min(), max() and clamp() minmax.h: use BUILD_BUG_ON_MSG() for the lo < hi test in clamp() minmax.h: move all the clamp() definitions after the min/max() ones minmax.h: simplify the variants of clamp() minmax.h: remove some #defines that are only expanded once Eric Biggers (2): crypto: af_alg - Fix incorrect boolean values in af_alg_ctx kmsan: fix out-of-bounds access to shadow memory Florian Fainelli (1): ARM: bcm: Select ARM_GIC_V3 for ARCH_BRCMSTB Geert Uytterhoeven (1): can: rcar_can: rcar_can_resume(): fix s2ram with PSCI Greg Kroah-Hartman (1): Linux 6.6.109 Guenter Roeck (1): drm/i915/backlight: Return immediately when scale() finds invalid parameters Hans de Goede (1): gpiolib: Extend software-node support to support secondary software-nodes Heikki Krogerus (1): i2c: designware: Add quirk for Intel Xe Hugh Dickins (3): mm/gup: check ref_count instead of lru before migration mm/gup: local lru_add_drain() to avoid lru_add_drain_all() mm: folio_may_be_lru_cached() unless folio_test_large() Ido Schimmel (2): nexthop: Forbid FDB status change while nexthop is in a group selftests: fib_nexthops: Fix creation of non-FDB nexthops James Guan (1): wifi: virt_wifi: Fix page fault on connect Jan Kara (1): loop: Avoid updating block size under exclusive owner Jason Baron (1): net: allow alloc_skb_with_frags() to use MAX_SKB_FRAGS Jiayi Li (1): usb: core: Add 0x prefix to quirks debug output Jihed Chaibi (1): ARM: dts: kirkwood: Fix sound DAI cells for OpenRD clients Jinjiang Tu (1): mm/hugetlb: fix folio is still mapped when deleted Justin Bronder (1): i40e: increase max descriptors for XL710 Kefeng Wang (1): mm: migrate_device: use more folio in migrate_device_finalize() Leon Hwang (1): bpf: Reject bpf_timer for PREEMPT_RT Linus Torvalds (5): minmax: make generic MIN() and MAX() macros available everywhere minmax: simplify min()/max()/clamp() implementation minmax: don't use max() in situations that want a C constant expression minmax: improve macro expansion and type checking minmax: fix up min3() and max3() too Luiz Augusto von Dentz (2): Bluetooth: hci_sync: Fix hci_resume_advertising_sync Bluetooth: hci_event: Fix UAF in hci_acl_create_conn_sync Lukasz Czapnik (8): i40e: fix idx validation in i40e_validate_queue_map i40e: fix idx validation in config queues msg i40e: fix input validation logic for action_meta i40e: fix validation of VF state in get resources i40e: add max boundary check for VF filters i40e: add mask to apply valid bits for itr_idx i40e: improve VF MAC filters accounting i40e: add validation for ring_len param Martin Schiller (1): net: dsa: lantiq_gswip: do also enable or disable cpu port Masami Hiramatsu (Google) (1): tracing: dynevent: Add a missing lockdown check on dynevent Nathan Chancellor (1): s390/cpum_cf: Fix uninitialized warning after backport of ce971233242b Nirmoy Das (1): drm/ast: Use msleep instead of mdelay for edid read Nobuhiro Iwamatsu (1): ARM: dts: socfpga: sodia: Fix mdio bus probe and PHY address Or Har-Toov (1): IB/mlx5: Fix obj_type mismatch for SRQ event subscriptions Peng Fan (1): arm64: dts: imx8mp: Correct thermal sensor index Petr Malat (1): ethernet: rvu-af: Remove slash from the driver name Sabrina Dubroca (1): xfrm: xfrm_alloc_spi shouldn't use 0 as SPI Samasth Norway Ananda (1): fbcon: fix integer overflow in fbcon_do_set_font Sang-Heon Jeon (1): smb: client: fix wrong index reference in smb2_compound_op() Sebastian Andrzej Siewior (2): vhost: Take a reference on the task in struct vhost_task. futex: Prevent use-after-free during requeue-PI Shivank Garg (1): mm: add folio_expected_ref_count() for reference count calculation Stefan Metzmacher (1): smb: server: don't use delayed_work for post_recv_credits_work Stéphane Grosjean (1): can: peak_usb: fix shift-out-of-bounds issue Takashi Iwai (1): ALSA: usb-audio: Fix build with CONFIG_INPUT=n Takashi Sakamoto (1): firewire: core: fix overlooked update of subsystem ABI version Thomas Zimmermann (1): fbcon: Fix OOB access in font allocation Vincent Mailhol (4): can: etas_es58x: populate ndo_change_mtu() to prevent buffer overflow can: hi311x: populate ndo_change_mtu() to prevent buffer overflow can: sun4i_can: populate ndo_change_mtu() to prevent buffer overflow can: mcba_usb: populate ndo_change_mtu() to prevent buffer overflow Vladimir Oltean (2): net: dsa: lantiq_gswip: move gswip_add_single_port_br() call to port_setup() net: dsa: lantiq_gswip: suppress -EINVAL errors for bridge FDB entries added to the CPU port Zabelin Nikita (1): drm/gma500: Fix null dereference in hdmi teardown Zhen Ni (1): afs: Fix potential null pointer dereference in afs_put_server noble.yang (1): ALSA: usb-audio: Add DSD support for Comtrue USB Audio device qaqland (1): ALSA: usb-audio: Add mute TLV for playback volumes on more devices

1 month

1
1
0 0

Linux 6.1.155

by Greg Kroah-Hartman

I'm announcing the release of the 6.1.155 kernel. All users of the 6.1 kernel series must upgrade. The updated 6.1.y git tree can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-6.1.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 ------------ Makefile | 2 arch/arm/mm/pageattr.c | 6 arch/arm64/boot/dts/freescale/imx8mp.dtsi | 4 arch/s390/kernel/perf_cpum_cf.c | 4 arch/um/drivers/mconsole_user.c | 2 arch/x86/mm/pgtable.c | 2 drivers/cpufreq/cpufreq.c | 20 drivers/edac/sb_edac.c | 4 drivers/edac/skx_common.h | 1 drivers/gpu/drm/amd/amdgpu/amdgpu.h | 2 drivers/gpu/drm/amd/display/modules/hdcp/hdcp_ddc.c | 2 drivers/gpu/drm/amd/pm/powerplay/hwmgr/ppevvmath.h | 14 drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c | 2 drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c | 3 drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c | 3 drivers/gpu/drm/arm/display/include/malidp_utils.h | 2 drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c | 24 drivers/gpu/drm/ast/ast_dp.c | 2 drivers/gpu/drm/drm_color_mgmt.c | 2 drivers/gpu/drm/gma500/oaktrail_hdmi.c | 2 drivers/gpu/drm/i915/display/intel_backlight.c | 5 drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 6 drivers/gpu/drm/radeon/evergreen_cs.c | 2 drivers/hwmon/adt7475.c | 24 drivers/infiniband/hw/mlx5/devx.c | 1 drivers/md/dm-integrity.c | 2 drivers/media/dvb-frontends/stv0367_priv.h | 3 drivers/net/can/rcar/rcar_can.c | 8 drivers/net/can/spi/hi311x.c | 1 drivers/net/can/sun4i_can.c | 1 drivers/net/can/usb/etas_es58x/es581_4.c | 4 drivers/net/can/usb/etas_es58x/es58x_core.c | 7 drivers/net/can/usb/etas_es58x/es58x_core.h | 8 drivers/net/can/usb/etas_es58x/es58x_fd.c | 4 drivers/net/can/usb/mcba_usb.c | 1 drivers/net/can/usb/peak_usb/pcan_usb_core.c | 2 drivers/net/dsa/lantiq_gswip.c | 37 - drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c | 2 drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c | 18 drivers/net/ethernet/intel/i40e/i40e.h | 4 drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 25 drivers/net/ethernet/intel/i40e/i40e_main.c | 26 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 110 ++- drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h | 3 drivers/net/ethernet/marvell/octeontx2/af/cgx.c | 3 drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c | 2 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 drivers/net/fjes/fjes_main.c | 4 drivers/nfc/pn544/i2c.c | 2 drivers/platform/x86/sony-laptop.c | 1 drivers/scsi/isci/init.c | 6 drivers/staging/media/atomisp/pci/hive_isp_css_include/math_support.h | 5 drivers/usb/core/quirks.c | 2 drivers/video/fbdev/core/fbcon.c | 13 drivers/virt/acrn/ioreq.c | 4 fs/afs/server.c | 3 fs/btrfs/misc.h | 2 fs/ext2/balloc.c | 2 fs/ext4/ext4.h | 2 fs/hugetlbfs/inode.c | 10 fs/smb/server/transport_rdma.c | 18 fs/ufs/util.h | 6 include/crypto/if_alg.h | 2 include/linux/minmax.h | 122 +++- include/linux/mm.h | 54 + include/linux/pageblock-flags.h | 2 include/linux/swap.h | 10 include/net/bluetooth/hci_core.h | 21 kernel/bpf/verifier.c | 4 kernel/futex/requeue.c | 6 kernel/trace/preemptirq_delay_test.c | 2 kernel/trace/trace_dynevent.c | 4 lib/btree.c | 1 lib/decompress_unlzma.c | 2 lib/logic_pio.c | 3 mm/gup.c | 28 mm/kmsan/core.c | 10 mm/kmsan/kmsan_test.c | 16 mm/migrate_device.c | 42 - mm/mlock.c | 2 mm/swap.c | 4 mm/zsmalloc.c | 1 net/bluetooth/hci_event.c | 26 net/bluetooth/hci_sync.c | 7 net/ipv4/nexthop.c | 7 net/ipv4/proc.c | 2 net/ipv6/proc.c | 2 net/netfilter/nf_nat_core.c | 6 net/tipc/core.h | 2 net/tipc/link.c | 10 sound/usb/mixer_quirks.c | 295 +++++++++- sound/usb/quirks.c | 24 sound/usb/usbaudio.h | 4 tools/testing/selftests/bpf/progs/get_branch_snapshot.c | 4 tools/testing/selftests/net/fib_nexthops.sh | 12 tools/testing/selftests/seccomp/seccomp_bpf.c | 2 tools/testing/selftests/vm/mremap_test.c | 2 97 files changed, 910 insertions(+), 325 deletions(-) Alok Tiwari (1): bnxt_en: correct offset handling for IPv6 destination address Andy Shevchenko (1): minmax: deduplicate __unconst_integer_typeof() Chen Ni (1): ALSA: usb-audio: Convert comma to semicolon Christian Loehle (1): cpufreq: Initialize cpufreq-based invariance before subsys Cristian Ciocaltea (6): ALSA: usb-audio: Fix block comments in mixer_quirks ALSA: usb-audio: Drop unnecessary parentheses in mixer_quirks ALSA: usb-audio: Avoid multiple assignments in mixer_quirks ALSA: usb-audio: Simplify NULL comparison in mixer_quirks ALSA: usb-audio: Remove unneeded wmb() in mixer_quirks ALSA: usb-audio: Add mixer quirk for Sony DualSense PS5 Cryolitia PukNgae (1): ALSA: usb-audio: move mixer_quirks' min_mute into common quirk Dan Carpenter (1): octeontx2-pf: Fix potential use after free in otx2_tc_add_flow() David Hildenbrand (2): mm/gup: revert "mm: gup: fix infinite loop within __get_longterm_locked" mm/migrate_device: don't add folio to be freed to LRU in migrate_device_finalize() David Laight (1): minmax: fix indentation of __cmp_once() and __clamp_once() Eric Biggers (2): crypto: af_alg - Fix incorrect boolean values in af_alg_ctx kmsan: fix out-of-bounds access to shadow memory Geert Uytterhoeven (1): can: rcar_can: rcar_can_resume(): fix s2ram with PSCI Greg Kroah-Hartman (1): Linux 6.1.155 Guenter Roeck (1): drm/i915/backlight: Return immediately when scale() finds invalid parameters Herve Codina (1): minmax: Introduce {min,max}_array() Hugh Dickins (3): mm/gup: check ref_count instead of lru before migration mm/gup: local lru_add_drain() to avoid lru_add_drain_all() mm: folio_may_be_lru_cached() unless folio_test_large() Ido Schimmel (2): nexthop: Forbid FDB status change while nexthop is in a group selftests: fib_nexthops: Fix creation of non-FDB nexthops Jiayi Li (1): usb: core: Add 0x prefix to quirks debug output Jinjiang Tu (1): mm/hugetlb: fix folio is still mapped when deleted Justin Bronder (1): i40e: increase max descriptors for XL710 Kefeng Wang (1): mm: migrate_device: use more folio in migrate_device_finalize() Leon Hwang (1): bpf: Reject bpf_timer for PREEMPT_RT Linus Torvalds (4): minmax: avoid overly complicated constant expressions in VM code minmax: make generic MIN() and MAX() macros available everywhere minmax: add a few more MIN_T/MAX_T users minmax: simplify and clarify min_t()/max_t() implementation Luiz Augusto von Dentz (2): Bluetooth: hci_sync: Fix hci_resume_advertising_sync Bluetooth: hci_event: Fix UAF in hci_acl_create_conn_sync Lukasz Czapnik (8): i40e: fix idx validation in i40e_validate_queue_map i40e: fix input validation logic for action_meta i40e: add max boundary check for VF filters i40e: add mask to apply valid bits for itr_idx i40e: improve VF MAC filters accounting i40e: fix validation of VF state in get resources i40e: fix idx validation in config queues msg i40e: add validation for ring_len param Martin Schiller (1): net: dsa: lantiq_gswip: do also enable or disable cpu port Masami Hiramatsu (Google) (1): tracing: dynevent: Add a missing lockdown check on dynevent Matthew Wilcox (Oracle) (1): minmax: add in_range() macro Nathan Chancellor (1): s390/cpum_cf: Fix uninitialized warning after backport of ce971233242b Nirmoy Das (1): drm/ast: Use msleep instead of mdelay for edid read Or Har-Toov (1): IB/mlx5: Fix obj_type mismatch for SRQ event subscriptions Peng Fan (1): arm64: dts: imx8mp: Correct thermal sensor index Petr Malat (1): ethernet: rvu-af: Remove slash from the driver name Samasth Norway Ananda (1): fbcon: fix integer overflow in fbcon_do_set_font Sebastian Andrzej Siewior (1): futex: Prevent use-after-free during requeue-PI Shivank Garg (1): mm: add folio_expected_ref_count() for reference count calculation Stefan Metzmacher (1): smb: server: don't use delayed_work for post_recv_credits_work Stéphane Grosjean (1): can: peak_usb: fix shift-out-of-bounds issue Takashi Iwai (1): ALSA: usb-audio: Fix build with CONFIG_INPUT=n Thomas Zimmermann (1): fbcon: Fix OOB access in font allocation Vincent Mailhol (5): can: etas_es58x: sort the includes by alphabetic order can: etas_es58x: populate ndo_change_mtu() to prevent buffer overflow can: hi311x: populate ndo_change_mtu() to prevent buffer overflow can: sun4i_can: populate ndo_change_mtu() to prevent buffer overflow can: mcba_usb: populate ndo_change_mtu() to prevent buffer overflow Vladimir Oltean (2): net: dsa: lantiq_gswip: move gswip_add_single_port_br() call to port_setup() net: dsa: lantiq_gswip: suppress -EINVAL errors for bridge FDB entries added to the CPU port Zabelin Nikita (1): drm/gma500: Fix null dereference in hdmi teardown Zhen Ni (1): afs: Fix potential null pointer dereference in afs_put_server noble.yang (1): ALSA: usb-audio: Add DSD support for Comtrue USB Audio device qaqland (1): ALSA: usb-audio: Add mute TLV for playback volumes on more devices

1 month

1
1
0 0

Linux 5.15.194

by Greg Kroah-Hartman

I'm announcing the release of the 5.15.194 kernel. All users of the 5.15 kernel series must upgrade. The updated 5.15.y git tree can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-5.15.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/devicetree/bindings/serial/brcm,bcm7271-uart.yaml | 2 Makefile | 2 arch/arm64/boot/dts/freescale/imx8mp.dtsi | 4 arch/um/drivers/virtio_uml.c | 6 arch/x86/kvm/cpuid.c | 31 - arch/x86/kvm/svm/svm.c | 3 crypto/af_alg.c | 7 drivers/cpufreq/cpufreq.c | 20 drivers/dma/qcom/bam_dma.c | 8 drivers/dma/ti/edma.c | 4 drivers/edac/altera_edac.c | 1 drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c | 2 drivers/gpu/drm/bridge/analogix/anx7625.c | 6 drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c | 6 drivers/gpu/drm/gma500/oaktrail_hdmi.c | 2 drivers/gpu/drm/i915/display/intel_backlight.c | 5 drivers/gpu/drm/i915/display/intel_display_power.c | 6 drivers/infiniband/hw/mlx5/devx.c | 1 drivers/input/serio/i8042-acpipnpio.h | 14 drivers/media/i2c/imx214.c | 27 drivers/media/platform/mtk-vcodec/venc/venc_h264_if.c | 6 drivers/mmc/host/mvsdio.c | 2 drivers/mtd/nand/raw/atmel/nand-controller.c | 18 drivers/mtd/nand/raw/stm32_fmc2_nand.c | 48 - drivers/net/can/dev/bittiming.c | 15 drivers/net/can/dev/dev.c | 50 + drivers/net/can/rcar/rcar_can.c | 8 drivers/net/can/spi/hi311x.c | 1 drivers/net/can/sun4i_can.c | 1 drivers/net/can/usb/etas_es58x/es581_4.c | 9 drivers/net/can/usb/etas_es58x/es58x_core.c | 16 drivers/net/can/usb/etas_es58x/es58x_core.h | 8 drivers/net/can/usb/etas_es58x/es58x_fd.c | 16 drivers/net/can/usb/mcba_usb.c | 1 drivers/net/can/usb/peak_usb/pcan_usb_core.c | 2 drivers/net/can/xilinx_can.c | 16 drivers/net/dsa/lantiq_gswip.c | 37 - drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c | 2 drivers/net/ethernet/broadcom/cnic.c | 3 drivers/net/ethernet/cavium/liquidio/request_manager.c | 2 drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c | 2 drivers/net/ethernet/freescale/fec_main.c | 3 drivers/net/ethernet/intel/i40e/i40e.h | 1 drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 25 drivers/net/ethernet/intel/i40e/i40e_main.c | 10 drivers/net/ethernet/intel/i40e/i40e_txrx.c | 3 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 45 + drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h | 3 drivers/net/ethernet/intel/igb/igb_ethtool.c | 5 drivers/net/ethernet/marvell/octeontx2/af/cgx.c | 3 drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 2 drivers/net/ethernet/natsemi/ns83820.c | 13 drivers/net/ethernet/qlogic/qed/qed_debug.c | 7 drivers/pcmcia/omap_cf.c | 8 drivers/phy/broadcom/phy-bcm-ns-usb3.c | 9 drivers/phy/marvell/phy-berlin-usb.c | 7 drivers/phy/ralink/phy-ralink-usb.c | 10 drivers/phy/rockchip/phy-rockchip-pcie.c | 11 drivers/phy/rockchip/phy-rockchip-usb.c | 10 drivers/phy/tegra/xusb-tegra210.c | 6 drivers/phy/ti/phy-omap-control.c | 9 drivers/phy/ti/phy-omap-usb2.c | 24 drivers/phy/ti/phy-ti-pipe3.c | 27 drivers/power/supply/bq27xxx_battery.c | 4 drivers/regulator/sy7636a-regulator.c | 7 drivers/soc/qcom/mdt_loader.c | 12 drivers/tty/hvc/hvc_console.c | 6 drivers/tty/serial/sc16is7xx.c | 14 drivers/usb/core/quirks.c | 2 drivers/usb/gadget/udc/dummy_hcd.c | 25 drivers/usb/host/xhci-dbgcap.c | 94 ++- drivers/usb/serial/option.c | 17 drivers/video/fbdev/core/fbcon.c | 13 drivers/video/fbdev/core/fbmem.c | 12 fs/btrfs/tree-checker.c | 4 fs/fuse/file.c | 5 fs/hugetlbfs/inode.c | 14 fs/ksmbd/transport_rdma.c | 17 fs/nfs/client.c | 2 fs/nfs/flexfilelayout/flexfilelayout.c | 21 fs/nfs/nfs4proc.c | 6 fs/nilfs2/sysfs.c | 4 fs/nilfs2/sysfs.h | 8 fs/ocfs2/extent_map.c | 10 fs/xfs/xfs_fsops.c | 4 include/crypto/if_alg.h | 10 include/linux/can/bittiming.h | 69 +- include/linux/can/dev.h | 8 include/linux/compiler-clang.h | 29 - include/linux/interrupt.h | 53 + include/linux/pgalloc.h | 29 + include/linux/pgtable.h | 13 include/net/sock.h | 40 + include/uapi/linux/can/netlink.h | 2 kernel/bpf/verifier.c | 4 kernel/cgroup/cgroup.c | 43 + kernel/irq/manage.c | 8 kernel/time/hrtimer.c | 50 - kernel/trace/trace.c | 4 kernel/trace/trace_dynevent.c | 4 kernel/trace/trace_events_synth.c | 2 lib/test_kasan.c | 1 mm/kasan/init.c | 12 mm/khugepaged.c | 2 mm/memory-failure.c | 7 mm/migrate.c | 12 mm/rmap.c | 2 mm/sparse-vmemmap.c | 6 net/can/j1939/bus.c | 5 net/can/j1939/socket.c | 3 net/ceph/messenger.c | 7 net/core/sock.c | 5 net/hsr/hsr_device.c | 163 +++++ net/hsr/hsr_main.c | 4 net/hsr/hsr_main.h | 4 net/hsr/hsr_slave.c | 18 net/ipv4/ip_tunnel_core.c | 6 net/ipv4/nexthop.c | 7 net/ipv4/tcp.c | 5 net/ipv4/tcp_bpf.c | 5 net/mac80211/driver-ops.h | 2 net/mptcp/protocol.c | 15 net/mptcp/sockopt.c | 11 net/mptcp/subflow.c | 3 net/rds/ib_frmr.c | 20 net/rfkill/rfkill-gpio.c | 22 net/unix/af_unix.c | 15 sound/firewire/motu/motu-hwdep.c | 2 sound/soc/codecs/wm8940.c | 2 sound/soc/codecs/wm8974.c | 8 sound/soc/sof/intel/hda-stream.c | 2 sound/usb/mixer_quirks.c | 285 +++++++++- tools/testing/selftests/net/fib_nexthops.sh | 12 133 files changed, 1468 insertions(+), 535 deletions(-) Alan Stern (1): USB: gadget: dummy-hcd: Fix locking bug in RT-enabled kernels Alex Deucher (1): drm/amdgpu: fix a memory leak in fence cleanup when unloading Alexander Dahl (1): mtd: nand: raw: atmel: Fix comment in timings preparation Alexander Sverdlin (1): mtd: nand: raw: atmel: Respect tAR, tCLR in read setup timing Alexey Nepomnyashih (1): net: liquidio: fix overflow in octeon_init_instr_queue() Alok Tiwari (1): bnxt_en: correct offset handling for IPv6 destination address Anders Roxell (1): dmaengine: ti: edma: Fix memory allocation size for queue_priority_map Andreas Kemnade (1): regulator: sy7636a: fix lifecycle of power good gpio André Apitzsch (1): media: i2c: imx214: Fix link frequency validation Anssi Hannula (1): can: xilinx_can: xcan_write_frame(): fix use-after-free of transmitted SKB Antoine Tenart (1): tunnels: reset the GSO metadata before reusing the skb Arnd Bergmann (1): media: mtk-vcodec: venc: avoid -Wenum-compare-conditional warning Bjorn Andersson (1): soc: qcom: mdt_loader: Deal with zero e_shentsize Boris Ostrovsky (1): KVM: SVM: Return TSA_SQ_NO and TSA_L1_NO bits in __do_cpuid_func() Borislav Petkov (AMD) (1): KVM: SVM: Set synthesized TSA CPUID flags Brett A C Sheffield (1): Revert "fbdev: Disable sysfb device registration when removing conflicting FBs" Charles Keepax (2): ASoC: wm8940: Correct typo in control name ASoC: wm8974: Correct PLL rate rounding Chen Ni (1): ALSA: usb-audio: Convert comma to semicolon Chen Ridong (1): cgroup: split cgroup_destroy_wq into 3 workqueues Christian Loehle (1): cpufreq: Initialize cpufreq-based invariance before subsys Christoffer Sandberg (1): Input: i8042 - add TUXEDO InfinityBook Pro Gen10 AMD to i8042 quirk table Christophe Kerello (2): mtd: rawnand: stm32_fmc2: fix ECC overwrite mtd: rawnand: stm32_fmc2: avoid overlapping mappings on ECC buffer Colin Ian King (1): ASoC: SOF: Intel: hda-stream: Fix incorrect variable used in error message Cristian Ciocaltea (6): ALSA: usb-audio: Fix block comments in mixer_quirks ALSA: usb-audio: Drop unnecessary parentheses in mixer_quirks ALSA: usb-audio: Avoid multiple assignments in mixer_quirks ALSA: usb-audio: Simplify NULL comparison in mixer_quirks ALSA: usb-audio: Remove unneeded wmb() in mixer_quirks ALSA: usb-audio: Add mixer quirk for Sony DualSense PS5 David Hildenbrand (2): mm/rmap: reject hugetlb folios in folio_make_device_exclusive() mm/migrate_device: don't add folio to be freed to LRU in migrate_device_finalize() Duoming Zhou (1): cnic: Fix use-after-free bugs in cnic_delete_task Eric Biggers (1): crypto: af_alg - Fix incorrect boolean values in af_alg_ctx Eric Sandeen (1): xfs: short circuit xfs_growfs_data_private() if delta is zero Fabian Vogt (1): tty: hvc_console: Call hvc_kick in hvc_write unconditionally Fabio Porcedda (2): USB: serial: option: add Telit Cinterion FN990A w/audio compositions USB: serial: option: add Telit Cinterion LE910C4-WWX new compositions Geert Uytterhoeven (2): pcmcia: omap_cf: Mark driver struct with __refdata to prevent section mismatch can: rcar_can: rcar_can_resume(): fix s2ram with PSCI Greg Kroah-Hartman (1): Linux 5.15.194 Guenter Roeck (1): drm/i915/backlight: Return immediately when scale() finds invalid parameters H. Nikolaus Schaller (2): power: supply: bq27xxx: fix error return in case of no bq27000 hdq battery power: supply: bq27xxx: restrict no-battery detection to bq27000 Hangbin Liu (2): hsr: use rtnl lock when iterating over ports hsr: use hsr_for_each_port_rtnl in hsr_port_get_hsr Hans de Goede (1): net: rfkill: gpio: Fix crash due to dereferencering uninitialized pointer Harry Yoo (1): mm: introduce and use {pgd,p4d}_populate_kernel() Herbert Xu (1): crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg Hugo Villeneuve (1): serial: sc16is7xx: fix bug in flow control levels init Håkon Bugge (1): rds: ib: Increment i_fastreg_wrs before bailing out Ido Schimmel (2): nexthop: Forbid FDB status change while nexthop is in a group selftests: fib_nexthops: Fix creation of non-FDB nexthops Ilya Dryomov (1): libceph: fix invalid accesses to ceph_connection_v1_info Ioana Ciornei (1): dpaa2-switch: fix buffer pool seeding for control traffic Jack Wang (1): mtd: rawnand: stm32_fmc2: Fix dma_map_sg error check Jakob Koschel (1): usb: gadget: dummy_hcd: remove usage of list iterator past the loop body Jamie Bainbridge (1): qed: Don't collect too many protection override GRC elements Jani Nikula (1): drm/i915/power: fix size for for_each_set_bit() in abox iteration Jiapeng Chong (2): hrtimer: Remove unused function hrtimer: Rename __hrtimer_hres_active() to hrtimer_hres_active() Jiayi Li (1): usb: core: Add 0x prefix to quirks debug output Jinjiang Tu (1): mm/hugetlb: fix folio is still mapped when deleted Johan Hovold (3): phy: tegra: xusb: fix device and OF node leak at probe phy: ti-pipe3: fix device leak at unbind phy: ti: omap-usb2: fix device leak at unbind Jonathan Curley (1): NFSv4/flexfiles: Fix layout merge mirror check. Justin Bronder (1): i40e: increase max descriptors for XL710 Kim Phillips (1): KVM: x86: Move open-coded CPUID leaf 0x80000021 EAX bit propagation code Kohei Enju (1): igb: fix link test skipping when interface is admin down Krister Johansen (1): mptcp: sockopt: make sync_socket_options propagate SOCK_KEEPOPEN Krzysztof Kozlowski (2): dt-bindings: serial: brcm,bcm7271-uart: Constrain clocks phy: broadcom: ns-usb3: fix Wvoid-pointer-to-enum-cast warning Kuniyuki Iwashima (4): net: Fix null-ptr-deref by sock_lock_init_class_and_name() and rmmod. tcp_bpf: Call sk_msg_free() when tcp_bpf_send_verdict() fails to allocate psock->cork. tcp: Clear tcp_sk(sk)->fastopen_rsk in tcp_disconnect(). af_unix: Don't leave consecutive consumed OOB skbs. Leon Hwang (1): bpf: Reject bpf_timer for PREEMPT_RT Liao Yuanhong (1): wifi: mac80211: fix incorrect type for ret Loic Poulain (1): drm: bridge: anx7625: Fix NULL pointer dereference with early IRQ Lukasz Czapnik (7): i40e: fix idx validation in i40e_validate_queue_map i40e: fix input validation logic for action_meta i40e: add max boundary check for VF filters i40e: add mask to apply valid bits for itr_idx i40e: fix validation of VF state in get resources i40e: fix idx validation in config queues msg i40e: add validation for ring_len param Luo Gengkun (1): tracing: Fix tracing_marker may trigger page fault during preempt_disable Maciej Fijalkowski (1): i40e: remove redundant memory barrier when cleaning Tx descs Maciej S. Szmigiero (1): KVM: SVM: Sync TPR from LAPIC into VMCB::V_TPR even if AVIC is active Mark Tinguely (1): ocfs2: fix recursive semaphore deadlock in fiemap call Martin Schiller (1): net: dsa: lantiq_gswip: do also enable or disable cpu port Masami Hiramatsu (Google) (1): tracing: dynevent: Add a missing lockdown check on dynevent Mathias Nyman (2): xhci: dbc: decouple endpoint allocation from initialization xhci: dbc: Fix full DbC transfer ring after several reconnects Matthieu Baerts (NGI0) (2): mptcp: set remote_deny_join_id0 on SYN recv mptcp: propagate shutdown to subflows when possible Miaohe Lin (1): mm/memory-failure: fix VM_BUG_ON_PAGE(PagePoisoned(page)) when unpoison memory Miaoqian Lin (1): um: virtio_uml: Fix use-after-free after put_device in probe Michal Schmidt (1): i40e: fix IRQ freeing in i40e_vsi_request_irq_msix error path Miklos Szeredi (2): fuse: check if copy_file_range() returns larger than requested size fuse: prevent overflow in copy_file_range return value Murali Karicheri (2): net: hsr: Add support for MC filtering at the slave device net: hsr: Add VLAN CTAG filter support Namjae Jeon (1): ksmbd: smbdirect: validate data_offset and data_length field of smb_direct_data_transfer Nathan Chancellor (2): compiler-clang.h: define __SANITIZE_*__ macros only when undefined nilfs2: fix CFI failure when accessing /sys/fs/nilfs2/features/* Nitesh Narayan Lal (1): i40e: Use irq_update_affinity_hint() Or Har-Toov (1): IB/mlx5: Fix obj_type mismatch for SRQ event subscriptions Peng Fan (1): arm64: dts: imx8mp: Correct thermal sensor index Petr Malat (1): ethernet: rvu-af: Remove slash from the driver name Philipp Zabel (1): net: rfkill: gpio: add DT support Qi Xi (1): drm: bridge: cdns-mhdp8546: Fix missing mutex unlock on error path Qu Wenruo (1): btrfs: tree-checker: fix the incorrect inode ref size check Ravi Gunasekaran (2): net: hsr: Disable promiscuous mode in offload mode net: hsr: hsr_slave: Fix the promiscuous mode in offload mode Rob Herring (1): phy: Use device_get_match_data() Salah Triki (1): EDAC/altera: Delete an inappropriate dma_free_coherent() call Samasth Norway Ananda (1): fbcon: fix integer overflow in fbcon_do_set_font Stefan Wahren (1): net: fec: Fix possible NPD in fec_enet_phy_reset_after_clk_enable() Stephan Gerhold (1): dmaengine: qcom: bam_dma: Fix DT error handling for num-channels/ees Steven Rostedt (1): tracing: Do not add length to print format in synthetic events Stéphane Grosjean (1): can: peak_usb: fix shift-out-of-bounds issue Takashi Iwai (1): ALSA: usb-audio: Fix build with CONFIG_INPUT=n Takashi Sakamoto (1): ALSA: firewire-motu: drop EPOLLOUT from poll return values as write is not supported Tariq Toukan (1): Revert "net/mlx5e: Update and set Xon/Xoff upon port speed set" Tetsuo Handa (2): can: j1939: j1939_sk_bind(): call j1939_priv_put() immediately when j1939_local_ecu_get() failed can: j1939: j1939_local_ecu_get(): undo increment when j1939_local_ecu_get() fails Thomas Fourier (1): mmc: mvsdio: Fix dma_unmap_sg() nents value Thomas Gleixner (1): genirq: Provide new interfaces for affinity hints Thomas Zimmermann (1): fbcon: Fix OOB access in font allocation Tigran Mkrtchyan (1): flexfiles/pNFS: fix NULL checks on result of ff_layout_choose_ds_for_read Trond Myklebust (3): NFSv4: Don't clear capabilities that won't be reset NFSv4: Clear the NFS_CAP_FS_LOCATIONS flag if it is not set NFSv4: Clear the NFS_CAP_XATTR flag if not supported by the server Vincent Mailhol (10): can: bittiming: allow TDC{V,O} to be zero and add can_tdc_const::tdc{v,o,f}_min can: bittiming: replace CAN units with the generic ones from linux/units.h can: dev: add generic function can_ethtool_op_get_ts_info_hwts() can: dev: add generic function can_eth_ioctl_hwts() can: etas_es58x: advertise timestamping capabilities and add ioctl support can: etas_es58x: sort the includes by alphabetic order can: etas_es58x: populate ndo_change_mtu() to prevent buffer overflow can: hi311x: populate ndo_change_mtu() to prevent buffer overflow can: sun4i_can: populate ndo_change_mtu() to prevent buffer overflow can: mcba_usb: populate ndo_change_mtu() to prevent buffer overflow Vladimir Oltean (2): net: dsa: lantiq_gswip: move gswip_add_single_port_br() call to port_setup() net: dsa: lantiq_gswip: suppress -EINVAL errors for bridge FDB entries added to the CPU port Wei Yang (1): mm/khugepaged: fix the address passed to notifier on testing young Xiongfeng Wang (1): hrtimers: Unconditionally update target CPU base after offline timer migration Yeoreum Yun (1): kunit: kasan_test: disable fortify string checker on kasan_strings() test Yeounsu Moon (1): net: natsemi: fix `rx_dropped` double accounting on `netif_rx()` failure Zabelin Nikita (1): drm/gma500: Fix null dereference in hdmi teardown

1 month

1
1
0 0

Linux 5.10.245

by Greg Kroah-Hartman

I'm announcing the release of the 5.10.245 kernel. All users of the 5.10 kernel series must upgrade. The updated 5.10.y git tree can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-5.10.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 ------------ Makefile | 2 arch/arm64/boot/dts/freescale/imx8mp.dtsi | 4 arch/um/drivers/virtio_uml.c | 6 arch/x86/kvm/svm/svm.c | 3 crypto/af_alg.c | 7 drivers/cpufreq/cpufreq.c | 20 - drivers/dma/qcom/bam_dma.c | 8 drivers/dma/ti/edma.c | 4 drivers/edac/altera_edac.c | 1 drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c | 6 drivers/gpu/drm/gma500/oaktrail_hdmi.c | 2 drivers/gpu/drm/i915/display/intel_display_power.c | 6 drivers/infiniband/hw/mlx5/devx.c | 1 drivers/input/serio/i8042-acpipnpio.h | 14 drivers/media/i2c/imx214.c | 27 + drivers/media/platform/mtk-vcodec/venc/venc_h264_if.c | 6 drivers/mmc/host/mvsdio.c | 2 drivers/mtd/mtdpstore.c | 3 drivers/mtd/nand/raw/atmel/nand-controller.c | 18 - drivers/mtd/nand/raw/stm32_fmc2_nand.c | 48 +- drivers/net/can/rcar/rcar_can.c | 8 drivers/net/can/spi/hi311x.c | 1 drivers/net/can/sun4i_can.c | 1 drivers/net/can/usb/mcba_usb.c | 1 drivers/net/can/usb/peak_usb/pcan_usb_core.c | 2 drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c | 2 drivers/net/ethernet/broadcom/cnic.c | 3 drivers/net/ethernet/cavium/liquidio/request_manager.c | 2 drivers/net/ethernet/freescale/fec_main.c | 3 drivers/net/ethernet/intel/i40e/i40e.h | 1 drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 25 + drivers/net/ethernet/intel/i40e/i40e_main.c | 10 drivers/net/ethernet/intel/i40e/i40e_txrx.c | 3 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 45 ++ drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h | 3 drivers/net/ethernet/intel/igb/igb_ethtool.c | 5 drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 2 drivers/net/ethernet/natsemi/ns83820.c | 13 drivers/net/ethernet/qlogic/qed/qed_debug.c | 7 drivers/pcmcia/omap_cf.c | 8 drivers/phy/broadcom/phy-bcm-cygnus-pcie.c | 4 drivers/phy/broadcom/phy-bcm-kona-usb2.c | 4 drivers/phy/broadcom/phy-bcm-ns-usb2.c | 4 drivers/phy/broadcom/phy-bcm-ns-usb3.c | 168 ---------- drivers/phy/broadcom/phy-bcm-ns2-usbdrd.c | 13 drivers/phy/broadcom/phy-bcm-sr-pcie.c | 5 drivers/phy/broadcom/phy-bcm-sr-usb.c | 4 drivers/phy/broadcom/phy-brcm-sata.c | 8 drivers/phy/marvell/phy-berlin-usb.c | 7 drivers/phy/ralink/phy-ralink-usb.c | 10 drivers/phy/rockchip/phy-rockchip-pcie.c | 11 drivers/phy/rockchip/phy-rockchip-usb.c | 10 drivers/phy/ti/phy-omap-control.c | 26 - drivers/phy/ti/phy-omap-usb2.c | 28 + drivers/phy/ti/phy-ti-pipe3.c | 42 +- drivers/power/supply/bq27xxx_battery.c | 4 drivers/soc/qcom/mdt_loader.c | 12 drivers/tty/hvc/hvc_console.c | 6 drivers/tty/serial/sc16is7xx.c | 14 drivers/usb/core/quirks.c | 2 drivers/usb/gadget/udc/dummy_hcd.c | 25 - drivers/usb/host/xhci-dbgcap.c | 94 +++-- drivers/usb/serial/option.c | 17 + drivers/video/fbdev/core/fbcon.c | 13 fs/btrfs/tree-checker.c | 4 fs/fuse/file.c | 5 fs/hugetlbfs/inode.c | 14 fs/nfs/client.c | 2 fs/nfs/flexfilelayout/flexfilelayout.c | 21 - fs/nfs/nfs4proc.c | 1 fs/nilfs2/sysfs.c | 4 fs/nilfs2/sysfs.h | 8 fs/ocfs2/extent_map.c | 10 include/crypto/if_alg.h | 10 include/linux/compiler-clang.h | 42 +- include/linux/compiler-gcc.h | 4 include/linux/interrupt.h | 72 ++-- include/linux/overflow.h | 208 ++---------- include/net/nexthop.h | 3 include/net/sock.h | 40 ++ include/uapi/linux/rtnetlink.h | 6 kernel/cgroup/cgroup.c | 43 ++ kernel/irq/manage.c | 111 ++++++ kernel/trace/trace.c | 4 kernel/trace/trace_dynevent.c | 4 mm/khugepaged.c | 2 mm/memory-failure.c | 7 mm/migrate.c | 12 net/can/j1939/bus.c | 5 net/can/j1939/socket.c | 3 net/core/sock.c | 5 net/ipv4/fib_semantics.c | 2 net/ipv4/ip_tunnel_core.c | 6 net/ipv4/nexthop.c | 28 + net/ipv4/tcp.c | 5 net/ipv4/tcp_bpf.c | 5 net/mac80211/driver-ops.h | 2 net/mptcp/pm_netlink.c | 1 net/mptcp/protocol.c | 16 net/rds/ib_frmr.c | 20 - net/rfkill/rfkill-gpio.c | 22 + sound/firewire/motu/motu-hwdep.c | 2 sound/soc/codecs/wm8940.c | 2 sound/soc/codecs/wm8974.c | 8 sound/soc/sof/intel/hda-stream.c | 2 sound/usb/mixer_quirks.c | 285 ++++++++++++++++- tools/include/linux/compiler-gcc.h | 4 tools/include/linux/overflow.h | 140 -------- tools/testing/selftests/net/fib_nexthops.sh | 12 109 files changed, 1181 insertions(+), 895 deletions(-) Alan Stern (1): USB: gadget: dummy-hcd: Fix locking bug in RT-enabled kernels Alexander Dahl (1): mtd: nand: raw: atmel: Fix comment in timings preparation Alexander Sverdlin (1): mtd: nand: raw: atmel: Respect tAR, tCLR in read setup timing Alexey Nepomnyashih (1): net: liquidio: fix overflow in octeon_init_instr_queue() Alok Tiwari (1): bnxt_en: correct offset handling for IPv6 destination address Anders Roxell (1): dmaengine: ti: edma: Fix memory allocation size for queue_priority_map André Apitzsch (1): media: i2c: imx214: Fix link frequency validation Antoine Tenart (1): tunnels: reset the GSO metadata before reusing the skb Arnd Bergmann (1): media: mtk-vcodec: venc: avoid -Wenum-compare-conditional warning Bjorn Andersson (1): soc: qcom: mdt_loader: Deal with zero e_shentsize Charles Keepax (2): ASoC: wm8940: Correct typo in control name ASoC: wm8974: Correct PLL rate rounding Chen Ni (1): ALSA: usb-audio: Convert comma to semicolon Chen Ridong (1): cgroup: split cgroup_destroy_wq into 3 workqueues Christian Loehle (1): cpufreq: Initialize cpufreq-based invariance before subsys Christoffer Sandberg (1): Input: i8042 - add TUXEDO InfinityBook Pro Gen10 AMD to i8042 quirk table Christophe Kerello (2): mtd: rawnand: stm32_fmc2: fix ECC overwrite mtd: rawnand: stm32_fmc2: avoid overlapping mappings on ECC buffer Chunfeng Yun (2): phy: broadcom: convert to devm_platform_ioremap_resource(_byname) phy: ti: convert to devm_platform_ioremap_resource(_byname) Colin Ian King (1): ASoC: SOF: Intel: hda-stream: Fix incorrect variable used in error message Cristian Ciocaltea (6): ALSA: usb-audio: Fix block comments in mixer_quirks ALSA: usb-audio: Drop unnecessary parentheses in mixer_quirks ALSA: usb-audio: Avoid multiple assignments in mixer_quirks ALSA: usb-audio: Simplify NULL comparison in mixer_quirks ALSA: usb-audio: Remove unneeded wmb() in mixer_quirks ALSA: usb-audio: Add mixer quirk for Sony DualSense PS5 David Hildenbrand (1): mm/migrate_device: don't add folio to be freed to LRU in migrate_device_finalize() Duoming Zhou (1): cnic: Fix use-after-free bugs in cnic_delete_task Eric Biggers (1): crypto: af_alg - Fix incorrect boolean values in af_alg_ctx Fabian Vogt (1): tty: hvc_console: Call hvc_kick in hvc_write unconditionally Fabio Porcedda (2): USB: serial: option: add Telit Cinterion FN990A w/audio compositions USB: serial: option: add Telit Cinterion LE910C4-WWX new compositions Geert Uytterhoeven (2): pcmcia: omap_cf: Mark driver struct with __refdata to prevent section mismatch can: rcar_can: rcar_can_resume(): fix s2ram with PSCI Greg Kroah-Hartman (1): Linux 5.10.245 H. Nikolaus Schaller (2): power: supply: bq27xxx: fix error return in case of no bq27000 hdq battery power: supply: bq27xxx: restrict no-battery detection to bq27000 Hans de Goede (1): net: rfkill: gpio: Fix crash due to dereferencering uninitialized pointer Herbert Xu (1): crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg Hugo Villeneuve (1): serial: sc16is7xx: fix bug in flow control levels init Håkon Bugge (1): rds: ib: Increment i_fastreg_wrs before bailing out Ido Schimmel (6): nexthop: Pass extack to nexthop notifier rtnetlink: Add RTNH_F_TRAP flag nexthop: Emit a notification when a nexthop is added nexthop: Emit a notification when a single nexthop is replaced nexthop: Forbid FDB status change while nexthop is in a group selftests: fib_nexthops: Fix creation of non-FDB nexthops Jack Wang (1): mtd: rawnand: stm32_fmc2: Fix dma_map_sg error check Jakob Koschel (1): usb: gadget: dummy_hcd: remove usage of list iterator past the loop body Jamie Bainbridge (1): qed: Don't collect too many protection override GRC elements Jani Nikula (1): drm/i915/power: fix size for for_each_set_bit() in abox iteration Jiasheng Jiang (1): mtd: Add check for devm_kcalloc() Jiayi Li (1): usb: core: Add 0x prefix to quirks debug output Jinjiang Tu (1): mm/hugetlb: fix folio is still mapped when deleted Johan Hovold (2): phy: ti-pipe3: fix device leak at unbind phy: ti: omap-usb2: fix device leak at unbind John Garry (1): genirq/affinity: Add irq_update_affinity_desc() Jonathan Curley (1): NFSv4/flexfiles: Fix layout merge mirror check. Justin Bronder (1): i40e: increase max descriptors for XL710 Kees Cook (1): overflow: Allow mixed type arguments Keith Busch (1): overflow: Correct check_shl_overflow() comment Kohei Enju (1): igb: fix link test skipping when interface is admin down Krzysztof Kozlowski (1): phy: broadcom: ns-usb3: fix Wvoid-pointer-to-enum-cast warning Kuniyuki Iwashima (3): net: Fix null-ptr-deref by sock_lock_init_class_and_name() and rmmod. tcp_bpf: Call sk_msg_free() when tcp_bpf_send_verdict() fails to allocate psock->cork. tcp: Clear tcp_sk(sk)->fastopen_rsk in tcp_disconnect(). Liao Yuanhong (1): wifi: mac80211: fix incorrect type for ret Lukasz Czapnik (7): i40e: fix idx validation in i40e_validate_queue_map i40e: fix input validation logic for action_meta i40e: add max boundary check for VF filters i40e: add mask to apply valid bits for itr_idx i40e: add validation for ring_len param i40e: fix idx validation in config queues msg i40e: fix validation of VF state in get resources Luo Gengkun (1): tracing: Fix tracing_marker may trigger page fault during preempt_disable Maciej Fijalkowski (1): i40e: remove redundant memory barrier when cleaning Tx descs Maciej S. Szmigiero (1): KVM: SVM: Sync TPR from LAPIC into VMCB::V_TPR even if AVIC is active Mark Tinguely (1): ocfs2: fix recursive semaphore deadlock in fiemap call Masami Hiramatsu (Google) (1): tracing: dynevent: Add a missing lockdown check on dynevent Mathias Nyman (2): xhci: dbc: decouple endpoint allocation from initialization xhci: dbc: Fix full DbC transfer ring after several reconnects Matthieu Baerts (NGI0) (2): mptcp: pm: kernel: flush: do not reset ADD_ADDR limit mptcp: propagate shutdown to subflows when possible Miaohe Lin (1): mm/memory-failure: fix VM_BUG_ON_PAGE(PagePoisoned(page)) when unpoison memory Miaoqian Lin (1): um: virtio_uml: Fix use-after-free after put_device in probe Michal Schmidt (1): i40e: fix IRQ freeing in i40e_vsi_request_irq_msix error path Miklos Szeredi (2): fuse: check if copy_file_range() returns larger than requested size fuse: prevent overflow in copy_file_range return value Nathan Chancellor (2): compiler-clang.h: define __SANITIZE_*__ macros only when undefined nilfs2: fix CFI failure when accessing /sys/fs/nilfs2/features/* Nick Desaulniers (1): compiler.h: drop fallback overflow checkers Nitesh Narayan Lal (1): i40e: Use irq_update_affinity_hint() Or Har-Toov (1): IB/mlx5: Fix obj_type mismatch for SRQ event subscriptions Peng Fan (1): arm64: dts: imx8mp: Correct thermal sensor index Philipp Zabel (1): net: rfkill: gpio: add DT support Qi Xi (1): drm: bridge: cdns-mhdp8546: Fix missing mutex unlock on error path Qu Wenruo (1): btrfs: tree-checker: fix the incorrect inode ref size check Rafał Miłecki (1): phy: phy-bcm-ns-usb3: drop support for deprecated DT binding Rob Herring (1): phy: Use device_get_match_data() Salah Triki (1): EDAC/altera: Delete an inappropriate dma_free_coherent() call Samasth Norway Ananda (1): fbcon: fix integer overflow in fbcon_do_set_font Stefan Wahren (1): net: fec: Fix possible NPD in fec_enet_phy_reset_after_clk_enable() Stephan Gerhold (1): dmaengine: qcom: bam_dma: Fix DT error handling for num-channels/ees Stéphane Grosjean (1): can: peak_usb: fix shift-out-of-bounds issue Takashi Iwai (1): ALSA: usb-audio: Fix build with CONFIG_INPUT=n Takashi Sakamoto (1): ALSA: firewire-motu: drop EPOLLOUT from poll return values as write is not supported Tariq Toukan (1): Revert "net/mlx5e: Update and set Xon/Xoff upon port speed set" Tetsuo Handa (2): can: j1939: j1939_sk_bind(): call j1939_priv_put() immediately when j1939_local_ecu_get() failed can: j1939: j1939_local_ecu_get(): undo increment when j1939_local_ecu_get() fails Thomas Fourier (1): mmc: mvsdio: Fix dma_unmap_sg() nents value Thomas Gleixner (2): genirq: Export affinity setter for modules genirq: Provide new interfaces for affinity hints Thomas Zimmermann (1): fbcon: Fix OOB access in font allocation Tigran Mkrtchyan (1): flexfiles/pNFS: fix NULL checks on result of ff_layout_choose_ds_for_read Trond Myklebust (2): NFSv4: Don't clear capabilities that won't be reset NFSv4: Clear the NFS_CAP_XATTR flag if not supported by the server Vincent Mailhol (3): can: hi311x: populate ndo_change_mtu() to prevent buffer overflow can: sun4i_can: populate ndo_change_mtu() to prevent buffer overflow can: mcba_usb: populate ndo_change_mtu() to prevent buffer overflow Wei Yang (1): mm/khugepaged: fix the address passed to notifier on testing young Yeounsu Moon (1): net: natsemi: fix `rx_dropped` double accounting on `netif_rx()` failure Zabelin Nikita (1): drm/gma500: Fix null dereference in hdmi teardown

1 month

1
1
0 0

Linux 5.4.300

by Greg Kroah-Hartman

I'm announcing the release of the 5.4.300 kernel. All users of the 5.4 kernel series must upgrade. The updated 5.4.y git tree can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-5.4.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 ------------ Makefile | 2 arch/x86/kvm/svm.c | 3 drivers/dma/qcom/bam_dma.c | 8 drivers/dma/ti/edma.c | 4 drivers/edac/altera_edac.c | 1 drivers/gpu/drm/gma500/oaktrail_hdmi.c | 2 drivers/infiniband/hw/mlx5/devx.c | 1 drivers/mmc/host/mvsdio.c | 2 drivers/mtd/nand/raw/atmel/nand-controller.c | 18 - drivers/mtd/nand/raw/stm32_fmc2_nand.c | 45 +- drivers/net/can/rcar/rcar_can.c | 8 drivers/net/can/spi/hi311x.c | 1 drivers/net/can/sun4i_can.c | 1 drivers/net/can/usb/mcba_usb.c | 1 drivers/net/can/usb/peak_usb/pcan_usb_core.c | 2 drivers/net/ethernet/broadcom/cnic.c | 3 drivers/net/ethernet/cavium/liquidio/request_manager.c | 2 drivers/net/ethernet/freescale/fec_main.c | 3 drivers/net/ethernet/intel/i40e/i40e.h | 1 drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 25 + drivers/net/ethernet/intel/i40e/i40e_main.c | 10 drivers/net/ethernet/intel/i40e/i40e_txrx.c | 3 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 46 ++ drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h | 3 drivers/net/ethernet/intel/igb/igb_ethtool.c | 5 drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 2 drivers/net/ethernet/natsemi/ns83820.c | 13 drivers/pcmcia/omap_cf.c | 8 drivers/phy/ti/phy-ti-pipe3.c | 13 drivers/power/supply/bq27xxx_battery.c | 4 drivers/soc/qcom/mdt_loader.c | 12 drivers/tty/hvc/hvc_console.c | 6 drivers/tty/serial/sc16is7xx.c | 13 drivers/usb/core/hub.c | 21 - drivers/usb/core/hub.h | 1 drivers/usb/core/quirks.c | 2 drivers/usb/gadget/udc/dummy_hcd.c | 25 - drivers/usb/serial/option.c | 17 + drivers/video/fbdev/core/fbcon.c | 13 fs/fuse/file.c | 5 fs/hugetlbfs/inode.c | 14 fs/nfs/nfs4proc.c | 1 fs/nilfs2/sysfs.c | 4 fs/nilfs2/sysfs.h | 8 fs/ocfs2/extent_map.c | 10 include/linux/interrupt.h | 72 +++- include/net/sock.h | 40 ++ kernel/cgroup/cgroup.c | 43 ++ kernel/irq/manage.c | 111 ++++++ mm/khugepaged.c | 2 mm/memory-failure.c | 7 mm/migrate.c | 12 net/can/j1939/bus.c | 5 net/can/j1939/socket.c | 3 net/core/sock.c | 5 net/ipv4/tcp.c | 5 net/ipv4/tcp_bpf.c | 5 net/mac80211/driver-ops.h | 2 net/rds/ib_frmr.c | 20 - net/rfkill/rfkill-gpio.c | 22 + sound/firewire/motu/motu-hwdep.c | 2 sound/soc/codecs/wm8940.c | 2 sound/soc/codecs/wm8974.c | 8 sound/soc/sof/intel/hda-stream.c | 2 sound/usb/mixer_quirks.c | 279 ++++++++++++++++- 65 files changed, 816 insertions(+), 223 deletions(-) Alan Stern (1): USB: gadget: dummy-hcd: Fix locking bug in RT-enabled kernels Alexander Dahl (1): mtd: nand: raw: atmel: Fix comment in timings preparation Alexander Sverdlin (1): mtd: nand: raw: atmel: Respect tAR, tCLR in read setup timing Alexey Nepomnyashih (1): net: liquidio: fix overflow in octeon_init_instr_queue() Anders Roxell (1): dmaengine: ti: edma: Fix memory allocation size for queue_priority_map Bjorn Andersson (1): soc: qcom: mdt_loader: Deal with zero e_shentsize Charles Keepax (2): ASoC: wm8940: Correct typo in control name ASoC: wm8974: Correct PLL rate rounding Chen Ni (1): ALSA: usb-audio: Convert comma to semicolon Chen Ridong (1): cgroup: split cgroup_destroy_wq into 3 workqueues Christophe Kerello (2): mtd: rawnand: stm32_fmc2: fix ECC overwrite mtd: rawnand: stm32_fmc2: avoid overlapping mappings on ECC buffer Colin Ian King (1): ASoC: SOF: Intel: hda-stream: Fix incorrect variable used in error message Cristian Ciocaltea (5): ALSA: usb-audio: Fix block comments in mixer_quirks ALSA: usb-audio: Avoid multiple assignments in mixer_quirks ALSA: usb-audio: Simplify NULL comparison in mixer_quirks ALSA: usb-audio: Remove unneeded wmb() in mixer_quirks ALSA: usb-audio: Add mixer quirk for Sony DualSense PS5 David Hildenbrand (1): mm/migrate_device: don't add folio to be freed to LRU in migrate_device_finalize() Duoming Zhou (1): cnic: Fix use-after-free bugs in cnic_delete_task Fabian Vogt (1): tty: hvc_console: Call hvc_kick in hvc_write unconditionally Fabio Porcedda (2): USB: serial: option: add Telit Cinterion FN990A w/audio compositions USB: serial: option: add Telit Cinterion LE910C4-WWX new compositions Geert Uytterhoeven (2): pcmcia: omap_cf: Mark driver struct with __refdata to prevent section mismatch can: rcar_can: rcar_can_resume(): fix s2ram with PSCI Greg Kroah-Hartman (1): Linux 5.4.300 H. Nikolaus Schaller (2): power: supply: bq27xxx: fix error return in case of no bq27000 hdq battery power: supply: bq27xxx: restrict no-battery detection to bq27000 Hans de Goede (1): net: rfkill: gpio: Fix crash due to dereferencering uninitialized pointer Hugo Villeneuve (1): serial: sc16is7xx: fix bug in flow control levels init Håkon Bugge (1): rds: ib: Increment i_fastreg_wrs before bailing out Jakob Koschel (1): usb: gadget: dummy_hcd: remove usage of list iterator past the loop body Jiayi Li (1): usb: core: Add 0x prefix to quirks debug output Jinjiang Tu (1): mm/hugetlb: fix folio is still mapped when deleted Johan Hovold (1): phy: ti-pipe3: fix device leak at unbind John Garry (1): genirq/affinity: Add irq_update_affinity_desc() Justin Bronder (1): i40e: increase max descriptors for XL710 Kohei Enju (1): igb: fix link test skipping when interface is admin down Kuniyuki Iwashima (3): net: Fix null-ptr-deref by sock_lock_init_class_and_name() and rmmod. tcp_bpf: Call sk_msg_free() when tcp_bpf_send_verdict() fails to allocate psock->cork. tcp: Clear tcp_sk(sk)->fastopen_rsk in tcp_disconnect(). Liao Yuanhong (1): wifi: mac80211: fix incorrect type for ret Lukasz Czapnik (7): i40e: fix idx validation in i40e_validate_queue_map i40e: fix input validation logic for action_meta i40e: add max boundary check for VF filters i40e: add validation for ring_len param i40e: fix idx validation in config queues msg i40e: fix validation of VF state in get resources i40e: add mask to apply valid bits for itr_idx Maciej Fijalkowski (1): i40e: remove redundant memory barrier when cleaning Tx descs Maciej S. Szmigiero (1): KVM: SVM: Sync TPR from LAPIC into VMCB::V_TPR even if AVIC is active Mark Tinguely (1): ocfs2: fix recursive semaphore deadlock in fiemap call Mathias Nyman (1): usb: hub: Fix flushing of delayed work used for post resume purposes Miaohe Lin (1): mm/memory-failure: fix VM_BUG_ON_PAGE(PagePoisoned(page)) when unpoison memory Michal Schmidt (1): i40e: fix IRQ freeing in i40e_vsi_request_irq_msix error path Miklos Szeredi (2): fuse: check if copy_file_range() returns larger than requested size fuse: prevent overflow in copy_file_range return value Nathan Chancellor (1): nilfs2: fix CFI failure when accessing /sys/fs/nilfs2/features/* Nitesh Narayan Lal (1): i40e: Use irq_update_affinity_hint() Or Har-Toov (1): IB/mlx5: Fix obj_type mismatch for SRQ event subscriptions Philipp Zabel (1): net: rfkill: gpio: add DT support Salah Triki (1): EDAC/altera: Delete an inappropriate dma_free_coherent() call Samasth Norway Ananda (1): fbcon: fix integer overflow in fbcon_do_set_font Stefan Wahren (1): net: fec: Fix possible NPD in fec_enet_phy_reset_after_clk_enable() Stephan Gerhold (1): dmaengine: qcom: bam_dma: Fix DT error handling for num-channels/ees Stéphane Grosjean (1): can: peak_usb: fix shift-out-of-bounds issue Takashi Iwai (1): ALSA: usb-audio: Fix build with CONFIG_INPUT=n Takashi Sakamoto (1): ALSA: firewire-motu: drop EPOLLOUT from poll return values as write is not supported Tariq Toukan (1): Revert "net/mlx5e: Update and set Xon/Xoff upon port speed set" Tetsuo Handa (2): can: j1939: j1939_sk_bind(): call j1939_priv_put() immediately when j1939_local_ecu_get() failed can: j1939: j1939_local_ecu_get(): undo increment when j1939_local_ecu_get() fails Thomas Fourier (1): mmc: mvsdio: Fix dma_unmap_sg() nents value Thomas Gleixner (2): genirq: Export affinity setter for modules genirq: Provide new interfaces for affinity hints Thomas Zimmermann (1): fbcon: Fix OOB access in font allocation Trond Myklebust (1): NFSv4: Don't clear capabilities that won't be reset Vincent Mailhol (3): can: hi311x: populate ndo_change_mtu() to prevent buffer overflow can: sun4i_can: populate ndo_change_mtu() to prevent buffer overflow can: mcba_usb: populate ndo_change_mtu() to prevent buffer overflow Wei Yang (1): mm/khugepaged: fix the address passed to notifier on testing young Yeounsu Moon (1): net: natsemi: fix `rx_dropped` double accounting on `netif_rx()` failure Zabelin Nikita (1): drm/gma500: Fix null dereference in hdmi teardown

1 month

1
1
0 0

[PATCH v2] i2c: fix reference leak in MP2 PCI device

by Ma Ke

In i2c_amd_probe(), amd_mp2_find_device() utilizes driver_find_next_device() which internally calls driver_find_device() to locate the matching device. driver_find_device() increments the reference count of the found device by calling get_device(), but amd_mp2_find_device() fails to call put_device() to decrement the reference count before returning. This results in a reference count leak of the PCI device each time i2c_amd_probe() is executed, which may prevent the device from being properly released and cause a memory leak. Found by code review. Cc: stable(a)vger.kernel.org Fixes: 529766e0a011 ("i2c: Add drivers for the AMD PCIe MP2 I2C controller") Signed-off-by: Ma Ke <make24(a)iscas.ac.cn> --- Changes in v2: - modified the missing initialization in the patch. Sorry for the omission. --- drivers/i2c/busses/i2c-amd-mp2-pci.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-amd-mp2-pci.c b/drivers/i2c/busses/i2c-amd-mp2-pci.c index ef7370d3dbea..60edbabc2986 100644 --- a/drivers/i2c/busses/i2c-amd-mp2-pci.c +++ b/drivers/i2c/busses/i2c-amd-mp2-pci.c @@ -458,13 +458,16 @@ struct amd_mp2_dev *amd_mp2_find_device(void) { struct device *dev; struct pci_dev *pci_dev; + struct amd_mp2_dev *mp2_dev; dev = driver_find_next_device(&amd_mp2_pci_driver.driver, NULL); if (!dev) return NULL; pci_dev = to_pci_dev(dev); - return (struct amd_mp2_dev *)pci_get_drvdata(pci_dev); + mp2_dev = (struct amd_mp2_dev *)pci_get_drvdata(pci_dev); + put_device(dev); + return mp2_dev; } EXPORT_SYMBOL_GPL(amd_mp2_find_device); -- 2.17.1

1 month

4
5
0 0

[PATCH 2/2] rv: Make rtapp/pagefault monitor depends on CONFIG_MMU

by Nam Cao

There is no page fault without MMU. Compiling the rtapp/pagefault monitor without CONFIG_MMU fails as page fault tracepoints' definitions are not available. Make rtapp/pagefault monitor depends on CONFIG_MMU. Fixes: 9162620eb604 ("rv: Add rtapp_pagefault monitor") Signed-off-by: Nam Cao <namcao(a)linutronix.de> Reported-by: kernel test robot <lkp(a)intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202509260455.6Z9Vkty4-lkp@intel.com/ Cc: stable(a)vger.kernel.org --- kernel/trace/rv/monitors/pagefault/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/trace/rv/monitors/pagefault/Kconfig b/kernel/trace/rv/monitors/pagefault/Kconfig index 5e16625f1653..0e013f00c33b 100644 --- a/kernel/trace/rv/monitors/pagefault/Kconfig +++ b/kernel/trace/rv/monitors/pagefault/Kconfig @@ -5,6 +5,7 @@ config RV_MON_PAGEFAULT select RV_LTL_MONITOR depends on RV_MON_RTAPP depends on X86 || RISCV + depends on MMU default y select LTL_MON_EVENTS_ID bool "pagefault monitor" -- 2.51.0

1 month

2
1
0 0

[PATCH 1/2] rv: Fully convert enabled_monitors to use list_head as iterator

by Nam Cao

The callbacks in enabled_monitors_seq_ops are inconsistent. Some treat the iterator as struct rv_monitor *, while others treat the iterator as struct list_head *. This causes a wrong type cast and crashes the system as reported by Nathan. Convert everything to use struct list_head * as iterator. This also makes enabled_monitors consistent with available_monitors. Fixes: de090d1ccae1 ("rv: Fix wrong type cast in enabled_monitors_next()") Reported-by: Nathan Chancellor <nathan(a)kernel.org> Closes: https://lore.kernel.org/linux-trace-kernel/20250923002004.GA2836051@ax162/ Signed-off-by: Nam Cao <namcao(a)linutronix.de> Cc: <stable(a)vger.kernel.org> --- kernel/trace/rv/rv.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/kernel/trace/rv/rv.c b/kernel/trace/rv/rv.c index 48338520376f..43e9ea473cda 100644 --- a/kernel/trace/rv/rv.c +++ b/kernel/trace/rv/rv.c @@ -501,7 +501,7 @@ static void *enabled_monitors_next(struct seq_file *m, void *p, loff_t *pos) list_for_each_entry_continue(mon, &rv_monitors_list, list) { if (mon->enabled) - return mon; + return &mon->list; } return NULL; @@ -509,7 +509,7 @@ static void *enabled_monitors_next(struct seq_file *m, void *p, loff_t *pos) static void *enabled_monitors_start(struct seq_file *m, loff_t *pos) { - struct rv_monitor *mon; + struct list_head *head; loff_t l; mutex_lock(&rv_interface_lock); @@ -517,15 +517,15 @@ static void *enabled_monitors_start(struct seq_file *m, loff_t *pos) if (list_empty(&rv_monitors_list)) return NULL; - mon = list_entry(&rv_monitors_list, struct rv_monitor, list); + head = &rv_monitors_list; for (l = 0; l <= *pos; ) { - mon = enabled_monitors_next(m, mon, &l); - if (!mon) + head = enabled_monitors_next(m, head, &l); + if (!head) break; } - return mon; + return head; } /* -- 2.51.0

1 month

2
1
0 0

[PATCH] stable: crypto: sha256 - fix crash at kexec

by Breno Leitao

Loading a large (~2.1G) files with kexec crashes the host with when running: # kexec --load kernel --initrd initrd_with_2G_or_more UBSAN: signed-integer-overflow in ./include/crypto/sha256_base.h:64:19 34152083 * 64 cannot be represented in type 'int' ... BUG: unable to handle page fault for address: ff9fffff83b624c0 sha256_update (lib/crypto/sha256.c:137) crypto_sha256_update (crypto/sha256_generic.c:40) kexec_calculate_store_digests (kernel/kexec_file.c:769) __se_sys_kexec_file_load (kernel/kexec_file.c:397 kernel/kexec_file.c:332) ... (Line numbers based on commit da274362a7bd9 ("Linux 6.12.49") This is not happening upstream (v6.16+), given that `block` type was upgraded from "int" to "size_t" in commit 74a43a2cf5e8 ("crypto: lib/sha256 - Move partial block handling out") Upgrade the block type similar to the commit above, avoiding hitting the overflow. This patch is only suitable for the stable tree, and before 6.16, which got commit 74a43a2cf5e8 ("crypto: lib/sha256 - Move partial block handling out") Signed-off-by: Breno Leitao <leitao(a)debian.org> Fixes: 11b8d5ef9138 ("crypto: sha256 - implement base layer for SHA-256") # not after v6.16 Reported-by: Michael van der Westhuizen <rmikey(a)meta.com> Reported-by: Tobias Fleig <tfleig(a)meta.com> --- include/crypto/sha256_base.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/crypto/sha256_base.h b/include/crypto/sha256_base.h index e0418818d63c8..fa63af10102b2 100644 --- a/include/crypto/sha256_base.h +++ b/include/crypto/sha256_base.h @@ -44,7 +44,7 @@ static inline int lib_sha256_base_do_update(struct sha256_state *sctx, sctx->count += len; if (unlikely((partial + len) >= SHA256_BLOCK_SIZE)) { - int blocks; + size_t blocks; if (partial) { int p = SHA256_BLOCK_SIZE - partial; --- base-commit: da274362a7bd9ab3a6e46d15945029145ebce672 change-id: 20251001-stable_crash-f2151baf043b Best regards, -- Breno Leitao <leitao(a)debian.org>

1 month

3
5
0 0

New September Order. 27115 Thursday, October 2, 2025 at 05:34:29 AM

by Info - Albinayah 204

Hi Stable, Please provide a quote for your products: Include: 1.Pricing (per unit) 2.Delivery cost & timeline 3.Quote expiry date Deadline: September Thanks! Kamal Prasad Albinayah Trading

1 month

1
0
0 0

[PATCH 4/7] drm/amd/display: Incorrect Mirror Cositing

by Alex Hung

From: Jesse Agate <jesse.agate(a)amd.com> [WHY] hinit/vinit are incorrect in the case of mirroring. [HOW] Cositing sign must be flipped when image is mirrored in the vertical or horizontal direction. Cc: Mario Limonciello <mario.limonciello(a)amd.com> Cc: Alex Deucher <alexander.deucher(a)amd.com> Cc: stable(a)vger.kernel.org Reviewed-by: Samson Tam <samson.tam(a)amd.com> Signed-off-by: Jesse Agate <jesse.agate(a)amd.com> Signed-off-by: Brendan Leder <breleder(a)amd.com> Signed-off-by: Alex Hung <alex.hung(a)amd.com> --- drivers/gpu/drm/amd/display/dc/sspl/dc_spl.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/sspl/dc_spl.c b/drivers/gpu/drm/amd/display/dc/sspl/dc_spl.c index 55b929ca7982..b1fb0f8a253a 100644 --- a/drivers/gpu/drm/amd/display/dc/sspl/dc_spl.c +++ b/drivers/gpu/drm/amd/display/dc/sspl/dc_spl.c @@ -641,16 +641,16 @@ static void spl_calculate_inits_and_viewports(struct spl_in *spl_in, /* this gives the direction of the cositing (negative will move * left, right otherwise) */ - int sign = 1; + int h_sign = flip_horz_scan_dir ? -1 : 1; + int v_sign = flip_vert_scan_dir ? -1 : 1; switch (spl_in->basic_in.cositing) { - case CHROMA_COSITING_TOPLEFT: - init_adj_h = spl_fixpt_from_fraction(sign, 4); - init_adj_v = spl_fixpt_from_fraction(sign, 4); + init_adj_h = spl_fixpt_from_fraction(h_sign, 4); + init_adj_v = spl_fixpt_from_fraction(v_sign, 4); break; case CHROMA_COSITING_LEFT: - init_adj_h = spl_fixpt_from_fraction(sign, 4); + init_adj_h = spl_fixpt_from_fraction(h_sign, 4); init_adj_v = spl_fixpt_zero; break; case CHROMA_COSITING_NONE: -- 2.43.0

1 month

1
0
0 0

[PATCH 3/7] drm/amd/display: Enable Dynamic DTBCLK Switch

by Alex Hung

From: Fangzhi Zuo <Jerry.Zuo(a)amd.com> [WHAT] Since dcn35, DTBCLK can be disabled when no DP2 sink connected for power saving purpose. Cc: Mario Limonciello <mario.limonciello(a)amd.com> Cc: Alex Deucher <alexander.deucher(a)amd.com> Cc: stable(a)vger.kernel.org Reviewed-by: Aurabindo Pillai <aurabindo.pillai(a)amd.com> Signed-off-by: Fangzhi Zuo <Jerry.Zuo(a)amd.com> Signed-off-by: Alex Hung <alex.hung(a)amd.com> --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 20ab9fd1b82a..6f5be090b744 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -2000,6 +2000,10 @@ static int amdgpu_dm_init(struct amdgpu_device *adev) init_data.flags.disable_ips_in_vpb = 0; + /* DCN35 and above supports dynamic DTBCLK switch */ + if (amdgpu_ip_version(adev, DCE_HWIP, 0) >= IP_VERSION(3, 5, 0)) + init_data.flags.allow_0_dtb_clk = true; + /* Enable DWB for tested platforms only */ if (amdgpu_ip_version(adev, DCE_HWIP, 0) >= IP_VERSION(3, 0, 0)) init_data.num_virtual_links = 1; -- 2.43.0

1 month

1
0
0 0

+ mm-ksm-fix-flag-dropping-behavior-in-ksm_madvise.patch added to mm-hotfixes-unstable branch

by Andrew Morton

The patch titled Subject: mm/ksm: fix flag-dropping behavior in ksm_madvise has been added to the -mm mm-hotfixes-unstable branch. Its filename is mm-ksm-fix-flag-dropping-behavior-in-ksm_madvise.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: Jakub Acs <acsjakub(a)amazon.de> Subject: mm/ksm: fix flag-dropping behavior in ksm_madvise Date: Wed, 1 Oct 2025 09:03:52 +0000 syzkaller discovered the following crash: (kernel BUG) [ 44.607039] ------------[ cut here ]------------ [ 44.607422] kernel BUG at mm/userfaultfd.c:2067! [ 44.608148] Oops: invalid opcode: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN NOPTI [ 44.608814] CPU: 1 UID: 0 PID: 2475 Comm: reproducer Not tainted 6.16.0-rc6 #1 PREEMPT(none) [ 44.609635] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 44.610695] RIP: 0010:userfaultfd_release_all+0x3a8/0x460 <snip other registers, drop unreliable trace> [ 44.617726] Call Trace: [ 44.617926] <TASK> [ 44.619284] userfaultfd_release+0xef/0x1b0 [ 44.620976] __fput+0x3f9/0xb60 [ 44.621240] fput_close_sync+0x110/0x210 [ 44.622222] __x64_sys_close+0x8f/0x120 [ 44.622530] do_syscall_64+0x5b/0x2f0 [ 44.622840] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 44.623244] RIP: 0033:0x7f365bb3f227 Kernel panics because it detects UFFD inconsistency during userfaultfd_release_all(). Specifically, a VMA which has a valid pointer to vma->vm_userfaultfd_ctx, but no UFFD flags in vma->vm_flags. The inconsistency is caused in ksm_madvise(): when user calls madvise() with MADV_UNMEARGEABLE on a VMA that is registered for UFFD in MINOR mode, it accidentally clears all flags stored in the upper 32 bits of vma->vm_flags. Assuming x86_64 kernel build, unsigned long is 64-bit and unsigned int and int are 32-bit wide. This setup causes the following mishap during the &= ~VM_MERGEABLE assignment. VM_MERGEABLE is a 32-bit constant of type unsigned int, 0x8000'0000. After ~ is applied, it becomes 0x7fff'ffff unsigned int, which is then promoted to unsigned long before the & operation. This promotion fills upper 32 bits with leading 0s, as we're doing unsigned conversion (and even for a signed conversion, this wouldn't help as the leading bit is 0). & operation thus ends up AND-ing vm_flags with 0x0000'0000'7fff'ffff instead of intended 0xffff'ffff'7fff'ffff and hence accidentally clears the upper 32-bits of its value. Fix it by changing `VM_MERGEABLE` constant to unsigned long, using the BIT() macro. Note: other VM_* flags are not affected: This only happens to the VM_MERGEABLE flag, as the other VM_* flags are all constants of type int and after ~ operation, they end up with leading 1 and are thus converted to unsigned long with leading 1s. Note 2: After commit 31defc3b01d9 ("userfaultfd: remove (VM_)BUG_ON()s"), this is no longer a kernel BUG, but a WARNING at the same place: [ 45.595973] WARNING: CPU: 1 PID: 2474 at mm/userfaultfd.c:2067 but the root-cause (flag-drop) remains the same. Link: https://lkml.kernel.org/r/20251001090353.57523-2-acsjakub@amazon.de Fixes: 7677f7fd8be7 ("userfaultfd: add minor fault registration mode") Signed-off-by: Jakub Acs <acsjakub(a)amazon.de> Acked-by: David Hildenbrand <david(a)redhat.com> Acked-by: SeongJae Park <sj(a)kernel.org> Cc: Xu Xin <xu.xin16(a)zte.com.cn> Cc: Chengming Zhou <chengming.zhou(a)linux.dev> Cc: Peter Xu <peterx(a)redhat.com> Cc: Axel Rasmussen <axelrasmussen(a)google.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- include/linux/mm.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/include/linux/mm.h~mm-ksm-fix-flag-dropping-behavior-in-ksm_madvise +++ a/include/linux/mm.h @@ -296,7 +296,7 @@ extern unsigned int kobjsize(const void #define VM_MIXEDMAP 0x10000000 /* Can contain "struct page" and pure PFN pages */ #define VM_HUGEPAGE 0x20000000 /* MADV_HUGEPAGE marked this vma */ #define VM_NOHUGEPAGE 0x40000000 /* MADV_NOHUGEPAGE marked this vma */ -#define VM_MERGEABLE 0x80000000 /* KSM may merge identical pages */ +#define VM_MERGEABLE BIT(31) /* KSM may merge identical pages */ #ifdef CONFIG_ARCH_USES_HIGH_VMA_FLAGS #define VM_HIGH_ARCH_BIT_0 32 /* bit only usable on 64-bit architectures */ _ Patches currently in -mm which might be from acsjakub(a)amazon.de are mm-ksm-fix-flag-dropping-behavior-in-ksm_madvise.patch

1 month

1
0
0 0

[PATCH 1/1] selftest/sched: skip the test if smt is not enabled

by Yifei Liu

The core scheduling is for smt enabled cpus. It is not returns failure and gives plenty of error messages and not clearly points to the smt issue if the smt is disabled. It just mention "not a core sched system" and many other messages. For example: Not a core sched system tid=210574, / tgid=210574 / pgid=210574: ffffffffffffffff Not a core sched system tid=210575, / tgid=210575 / pgid=210574: ffffffffffffffff Not a core sched system tid=210577, / tgid=210575 / pgid=210574: ffffffffffffffff (similar things many other times) In this patch, the test will first read /sys/devices/system/cpu/smt/active, if the file cannot be opened or its value is 0, the test is skipped with an explanatory message. This helps developers understand why it is skipped and avoids unnecessary attention when running the full selftest suite. Signed-off-by: Yifei Liu <yifei.l.liu(a)oracle.com> --- tools/testing/selftests/sched/cs_prctl_test.c | 23 ++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/sched/cs_prctl_test.c b/tools/testing/selftests/sched/cs_prctl_test.c index 52d97fae4dbd..7ce8088cde6a 100644 --- a/tools/testing/selftests/sched/cs_prctl_test.c +++ b/tools/testing/selftests/sched/cs_prctl_test.c @@ -32,6 +32,8 @@ #include <stdlib.h> #include <string.h> +#include "../kselftest.h" + #if __GLIBC_PREREQ(2, 30) == 0 #include <sys/syscall.h> static pid_t gettid(void) @@ -109,6 +111,22 @@ static void handle_usage(int rc, char *msg) exit(rc); } +int check_smt(void) +{ + int c = 0; + FILE *file; + + file = fopen("/sys/devices/system/cpu/smt/active", "r"); + if (!file) + return 0; + c = fgetc(file) - 0x30; + fclose(file); + if (c == 0 || c == 1) + return c; + //if fgetc returns EOF or -1 for correupted files, return 0. + return 0; +} + static unsigned long get_cs_cookie(int pid) { unsigned long long cookie; @@ -271,7 +289,10 @@ int main(int argc, char *argv[]) delay = -1; srand(time(NULL)); - + if (!check_smt()) { + ksft_test_result_skip("smt not enabled\n"); + return 1; + } /* put into separate process group */ if (setpgid(0, 0) != 0) handle_error("process group"); -- 2.50.1

1 month

2
1
0 0

[PATCH 6.16 000/143] 6.16.10-rc1 review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 6.16.10 release. There are 143 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, 02 Oct 2025 14:37:59 +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/v6.x/stable-review/patch-6.16.10-rc… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.16.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 6.16.10-rc1 Jason Gunthorpe <jgg(a)ziepe.ca> iommufd: Fix race during abort for file descriptors Khairul Anuar Romli <khairul.anuar.romli(a)altera.com> spi: cadence-qspi: defer runtime support on socfpga if reset bit is enabled Khairul Anuar Romli <khairul.anuar.romli(a)altera.com> spi: cadence-quadspi: Implement refcount to handle unbind during busy Andrea Righi <arighi(a)nvidia.com> sched_ext: idle: Handle migration-disabled tasks in BPF code Andrea Righi <arighi(a)nvidia.com> sched_ext: idle: Make local functions static in ext_idle.c Johannes Berg <johannes.berg(a)intel.com> wifi: iwlwifi: pcie: fix byte count table for some devices Johannes Berg <johannes.berg(a)intel.com> wifi: iwlwifi: fix byte count table for old devices Thomas Zimmermann <tzimmermann(a)suse.de> fbcon: Fix OOB access in font allocation Samasth Norway Ananda <samasth.norway.ananda(a)oracle.com> fbcon: fix integer overflow in fbcon_do_set_font Akinobu Mita <akinobu.mita(a)gmail.com> mm/damon/sysfs: do not ignore callback's return value in damon_sysfs_damon_call() Jinjiang Tu <tujinjiang(a)huawei.com> mm/hugetlb: fix folio is still mapped when deleted Alexander Popov <alex.popov(a)linux.com> x86/Kconfig: Reenable PTDUMP on i386 Thomas Gleixner <tglx(a)linutronix.de> x86/topology: Implement topology_is_core_online() to address SMT regression Alexandre Ghiti <alexghiti(a)rivosinc.com> riscv: Use an atomic xchg in pudp_huge_get_and_clear() Max Kellermann <max.kellermann(a)ionos.com> netfs: fix reference leak Eric Biggers <ebiggers(a)kernel.org> kmsan: fix out-of-bounds access to shadow memory Hans de Goede <hansg(a)kernel.org> gpiolib: Extend software-node support to support secondary software-nodes Jakub Acs <acsjakub(a)amazon.de> fs/proc/task_mmu: check p->vec_buf for NULL Zhen Ni <zhen.ni(a)easystack.cn> afs: Fix potential null pointer dereference in afs_put_server Jason Wang <jasowang(a)redhat.com> vhost-net: flush batched before enabling notifications Michael S. Tsirkin <mst(a)redhat.com> Revert "vhost/net: Defer TX queue re-enable until after sendmsg" Christian Marangi <ansuelsmth(a)gmail.com> pinctrl: airoha: fix wrong MDIO function bitmaks Christian Marangi <ansuelsmth(a)gmail.com> pinctrl: airoha: fix wrong PHY LED mux value for LED1 GPIO46 Matthew Schwartz <matthew.schwartz(a)linux.dev> drm/amd/display: Only restore backlight after amdgpu_dm_init or dm_resume Nirmoy Das <nirmoyd(a)nvidia.com> drm/ast: Use msleep instead of mdelay for edid read Thomas Hellström <thomas.hellstrom(a)linux.intel.com> drm/xe: Don't copy pinned kernel bos twice on suspend Josua Mayer <josua(a)solid-run.com> arm64: dts: marvell: cn9132-clearfog: fix multi-lane pci x2 and x4 ports Josua Mayer <josua(a)solid-run.com> arm64: dts: marvell: cn9132-clearfog: disable eMMC high-speed modes Josua Mayer <josua(a)solid-run.com> arm64: dts: marvell: cn913x-solidrun: fix sata ports status Nobuhiro Iwamatsu <iwamatsu(a)nigauri.org> ARM: dts: socfpga: sodia: Fix mdio bus probe and PHY address Masami Hiramatsu (Google) <mhiramat(a)kernel.org> tracing: fprobe: Fix to remove recorded module addresses from filter Masami Hiramatsu (Google) <mhiramat(a)kernel.org> tracing: fgraph: Protect return handler from recursion loop Masami Hiramatsu (Google) <mhiramat(a)kernel.org> tracing: dynevent: Add a missing lockdown check on dynevent Eric Biggers <ebiggers(a)kernel.org> crypto: af_alg - Fix incorrect boolean values in af_alg_ctx Lukasz Czapnik <lukasz.czapnik(a)intel.com> i40e: improve VF MAC filters accounting Lukasz Czapnik <lukasz.czapnik(a)intel.com> i40e: add mask to apply valid bits for itr_idx Lukasz Czapnik <lukasz.czapnik(a)intel.com> i40e: add max boundary check for VF filters Lukasz Czapnik <lukasz.czapnik(a)intel.com> i40e: fix validation of VF state in get resources Lukasz Czapnik <lukasz.czapnik(a)intel.com> i40e: fix input validation logic for action_meta Lukasz Czapnik <lukasz.czapnik(a)intel.com> i40e: fix idx validation in config queues msg Lukasz Czapnik <lukasz.czapnik(a)intel.com> i40e: fix idx validation in i40e_validate_queue_map Lukasz Czapnik <lukasz.czapnik(a)intel.com> i40e: add validation for ring_len param Amit Chaudhari <amitchaudhari(a)mac.com> HID: asus: add support for missing PX series fn keys Xinpeng Sun <xinpeng.sun(a)intel.com> HID: intel-thc-hid: intel-quickspi: Add WCL Device IDs Wang Liang <wangliang74(a)huawei.com> tracing/osnoise: Fix slab-out-of-bounds in _parse_integer_limit() Sasha Levin <sashal(a)kernel.org> Revert "drm/xe/guc: Enable extended CAT error reporting" Sasha Levin <sashal(a)kernel.org> Revert "drm/xe/guc: Set RCS/CCS yield policy" Sang-Heon Jeon <ekffu200098(a)gmail.com> smb: client: fix wrong index reference in smb2_compound_op() Daniel Lee <dany97(a)live.ca> platform/x86: lg-laptop: Fix WMAB call in fan_mode_store() Adrián Larumbe <adrian.larumbe(a)collabora.com> drm/panthor: Defer scheduler entitiy destruction to queue release Sebastian Andrzej Siewior <bigeasy(a)linutronix.de> futex: Use correct exit on failure from futex_hash_allocate_default() Melissa Wen <mwen(a)igalia.com> drm/amd/display: remove output_tf_change flag Suraj Kandpal <suraj.kandpal(a)intel.com> drm/i915/ddi: Guard reg_val against a INVALID_TRANSCODER Lucas De Marchi <lucas.demarchi(a)intel.com> drm/xe: Fix build with CONFIG_MODULES=n Michal Wajdeczko <michal.wajdeczko(a)intel.com> drm/xe/vf: Don't expose sysfs attributes not applicable for VFs Ioana Ciornei <ioana.ciornei(a)nxp.com> gpio: regmap: fix memory leak of gpio_regmap structure Sebastian Andrzej Siewior <bigeasy(a)linutronix.de> futex: Prevent use-after-free during requeue-PI Zabelin Nikita <n.zabelin(a)mt-integration.ru> drm/gma500: Fix null dereference in hdmi teardown Dan Carpenter <dan.carpenter(a)linaro.org> octeontx2-pf: Fix potential use after free in otx2_tc_add_flow() Vladimir Oltean <vladimir.oltean(a)nxp.com> net: dsa: lantiq_gswip: suppress -EINVAL errors for bridge FDB entries added to the CPU port Vladimir Oltean <vladimir.oltean(a)nxp.com> net: dsa: lantiq_gswip: move gswip_add_single_port_br() call to port_setup() Carolina Jubran <cjubran(a)nvidia.com> net/mlx5e: Fix missing FEC RS stats for RS_544_514_INTERLEAVED_QUAD Yevgeny Kliteynik <kliteyn(a)nvidia.com> net/mlx5: HWS, ignore flow level for multi-dest table Vlad Dogaru <vdogaru(a)nvidia.com> net/mlx5: HWS, remove unused create_dest_array parameter Moshe Shemesh <moshe(a)nvidia.com> net/mlx5: fs, fix UAF in flow counter release Ido Schimmel <idosch(a)nvidia.com> selftests: fib_nexthops: Fix creation of non-FDB nexthops Ido Schimmel <idosch(a)nvidia.com> nexthop: Forbid FDB status change while nexthop is in a group Jason Baron <jbaron(a)akamai.com> net: allow alloc_skb_with_frags() to use MAX_SKB_FRAGS Alok Tiwari <alok.a.tiwari(a)oracle.com> bnxt_en: correct offset handling for IPv6 destination address Jacob Keller <jacob.e.keller(a)intel.com> broadcom: fix support for PTP_EXTTS_REQUEST2 ioctl Jacob Keller <jacob.e.keller(a)intel.com> broadcom: fix support for PTP_PEROUT_DUTY_CYCLE Luiz Augusto von Dentz <luiz.von.dentz(a)intel.com> Bluetooth: MGMT: Fix possible UAFs Sebastian Andrzej Siewior <bigeasy(a)linutronix.de> vhost: Take a reference on the task in struct vhost_task. Luiz Augusto von Dentz <luiz.von.dentz(a)intel.com> Bluetooth: hci_event: Fix UAF in hci_acl_create_conn_sync Luiz Augusto von Dentz <luiz.von.dentz(a)intel.com> Bluetooth: hci_event: Fix UAF in hci_conn_tx_dequeue Luiz Augusto von Dentz <luiz.von.dentz(a)intel.com> Bluetooth: hci_sync: Fix hci_resume_advertising_sync Petr Malat <oss(a)malat.biz> ethernet: rvu-af: Remove slash from the driver name Sidraya Jayagond <sidraya(a)linux.ibm.com> net/smc: fix warning in smc_rx_splice() when calling get_page() Wang Liang <wangliang74(a)huawei.com> net: tun: Update napi->skb after XDP process Stéphane Grosjean <stephane.grosjean(a)hms-networks.com> can: peak_usb: fix shift-out-of-bounds issue Vincent Mailhol <mailhol(a)kernel.org> can: mcba_usb: populate ndo_change_mtu() to prevent buffer overflow Vincent Mailhol <mailhol(a)kernel.org> can: sun4i_can: populate ndo_change_mtu() to prevent buffer overflow Vincent Mailhol <mailhol(a)kernel.org> can: hi311x: populate ndo_change_mtu() to prevent buffer overflow Vincent Mailhol <mailhol(a)kernel.org> can: etas_es58x: populate ndo_change_mtu() to prevent buffer overflow Sabrina Dubroca <sd(a)queasysnail.net> xfrm: fix offloading of cross-family tunnels Sabrina Dubroca <sd(a)queasysnail.net> xfrm: xfrm_alloc_spi shouldn't use 0 as SPI Leon Hwang <leon.hwang(a)linux.dev> selftests/bpf: Skip timer cases when bpf_timer is not supported Leon Hwang <leon.hwang(a)linux.dev> bpf: Reject bpf_timer for PREEMPT_RT Geert Uytterhoeven <geert+renesas(a)glider.be> can: rcar_can: rcar_can_resume(): fix s2ram with PSCI James Guan <guan_yufei(a)163.com> wifi: virt_wifi: Fix page fault on connect Yifan Zhang <yifan1.zhang(a)amd.com> amd/amdkfd: correct mem limit calculation for small APUs Eric Huang <jinhuieric.huang(a)amd.com> drm/amdkfd: fix p2p links bug in topology Trond Myklebust <trond.myklebust(a)hammerspace.com> NFSv4.2: Protect copy offload and clone against 'eof page pollution' Trond Myklebust <trond.myklebust(a)hammerspace.com> NFS: Protect against 'eof page pollution' Mark Harmstone <mark(a)harmstone.com> btrfs: don't allow adding block device of less than 1 MB Xing Guo <higuoxing(a)gmail.com> selftests/fs/mount-notify: Fix compilation failure. Jiri Olsa <olsajiri(a)gmail.com> bpf: Check the helper function is valid in get_helper_proto Stefan Metzmacher <metze(a)samba.org> smb: server: use disable_work_sync in transport_rdma.c Stefan Metzmacher <metze(a)samba.org> smb: server: don't use delayed_work for post_recv_credits_work Christian Loehle <christian.loehle(a)arm.com> cpufreq: Initialize cpufreq-based invariance before subsys Jihed Chaibi <jihed.chaibi.dev(a)gmail.com> ARM: dts: kirkwood: Fix sound DAI cells for OpenRD clients Peng Fan <peng.fan(a)nxp.com> arm64: dts: imx8mp: Correct thermal sensor index Peng Fan <peng.fan(a)nxp.com> firmware: imx: Add stub functions for SCMI CPU API Peng Fan <peng.fan(a)nxp.com> firmware: imx: Add stub functions for SCMI LMM API Peng Fan <peng.fan(a)nxp.com> firmware: imx: Add stub functions for SCMI MISC API Jimmy Hon <honyuenkwun(a)gmail.com> arm64: dts: rockchip: Fix the headphone detection on the orangepi 5 Basavaraj Natikar <Basavaraj.Natikar(a)amd.com> HID: amd_sfh: Add sync across amd sfh work functions Sébastien Szymanski <sebastien.szymanski(a)armadeus.com> HID: cp2112: fix setter callbacks return value Or Har-Toov <ohartoov(a)nvidia.com> IB/mlx5: Fix obj_type mismatch for SRQ event subscriptions Aleksander Jan Bajkowski <olek2(a)wp.pl> net: sfp: add quirk for FLYPRO copper SFP+ module qaqland <anguoli(a)uniontech.com> ALSA: usb-audio: Add mute TLV for playback volumes on more devices Cryolitia PukNgae <cryolitia(a)uniontech.com> ALSA: usb-audio: move mixer_quirks' min_mute into common quirk Mario Limonciello (AMD) <superm1(a)kernel.org> gpiolib: acpi: Add quirk for ASUS ProArt PX13 noble.yang <noble.yang(a)comtrue-inc.com> ALSA: usb-audio: Add DSD support for Comtrue USB Audio device Antheas Kapenekakis <lkml(a)antheas.dev> platform/x86: oxpec: Add support for OneXPlayer X1 Mini Pro (Strix Point) Balamurugan C <balamurugan.c(a)intel.com> ASoC: Intel: sof_rt5682: Add HDMI-In capture with rt5682 support for PTL. Balamurugan C <balamurugan.c(a)intel.com> ASoC: Intel: soc-acpi: Add entry for HDMI_In capture support in PTL match table Balamurugan C <balamurugan.c(a)intel.com> ASoC: Intel: soc-acpi: Add entry for sof_es8336 in PTL match table. Heikki Krogerus <heikki.krogerus(a)linux.intel.com> i2c: designware: Add quirk for Intel Xe Benoît Monin <benoit.monin(a)bootlin.com> mmc: sdhci-cadence: add Mobileye eyeQ support Louis-Alexis Eyraud <louisalexis.eyraud(a)collabora.com> drm/panfrost: Add support for Mali on the MT8370 SoC Louis-Alexis Eyraud <louisalexis.eyraud(a)collabora.com> drm/panfrost: Commonize Mediatek power domain array definitions Louis-Alexis Eyraud <louisalexis.eyraud(a)collabora.com> drm/panfrost: Drop duplicated Mediatek supplies arrays Chris Morgan <macromorgan(a)hotmail.com> net: sfp: add quirk for Potron SFP+ XGSPON ONU Stick Marc Kleine-Budde <mkl(a)pengutronix.de> net: fec: rename struct fec_devinfo fec_imx6x_info -> fec_imx6sx_info Jiayi Li <lijiayi(a)kylinos.cn> usb: core: Add 0x prefix to quirks debug output Takashi Iwai <tiwai(a)suse.de> ALSA: usb-audio: Fix build with CONFIG_INPUT=n Stefan Binding <sbinding(a)opensource.cirrus.com> ALSA: hda/realtek: Add support for ASUS NUC using CS35L41 HDA Chen Ni <nichen(a)iscas.ac.cn> ALSA: usb-audio: Convert comma to semicolon Kerem Karabay <kekrby(a)gmail.com> HID: multitouch: specify that Apple Touch Bar is direct Kerem Karabay <kekrby(a)gmail.com> HID: multitouch: take cls->maxcontacts into account for Apple Touch Bar even without a HID_DG_CONTACTMAX field Kerem Karabay <kekrby(a)gmail.com> HID: multitouch: support getting the tip state from HID_DG_TOUCH fields in Apple Touch Bar Kerem Karabay <kekrby(a)gmail.com> HID: multitouch: Get the contact ID from HID_DG_TRANSDUCER_INDEX fields in case of Apple Touch Bar Cristian Ciocaltea <cristian.ciocaltea(a)collabora.com> ALSA: usb-audio: Add mixer quirk for Sony DualSense PS5 Cristian Ciocaltea <cristian.ciocaltea(a)collabora.com> ALSA: usb-audio: Remove unneeded wmb() in mixer_quirks Cristian Ciocaltea <cristian.ciocaltea(a)collabora.com> ALSA: usb-audio: Simplify NULL comparison in mixer_quirks Cristian Ciocaltea <cristian.ciocaltea(a)collabora.com> ALSA: usb-audio: Avoid multiple assignments in mixer_quirks Cristian Ciocaltea <cristian.ciocaltea(a)collabora.com> ALSA: usb-audio: Drop unnecessary parentheses in mixer_quirks Cristian Ciocaltea <cristian.ciocaltea(a)collabora.com> ALSA: usb-audio: Fix block comments in mixer_quirks Cristian Ciocaltea <cristian.ciocaltea(a)collabora.com> ALSA: usb-audio: Fix whitespace & blank line issues in mixer_quirks Cristian Ciocaltea <cristian.ciocaltea(a)collabora.com> ALSA: usb-audio: Fix code alignment in mixer_quirks Takashi Sakamoto <o-takashi(a)sakamocchi.jp> firewire: core: fix overlooked update of subsystem ABI version Alok Tiwari <alok.a.tiwari(a)oracle.com> scsi: ufs: mcq: Fix memory allocation checks for SQE and CQE ------------- Diffstat: Documentation/admin-guide/laptops/lg-laptop.rst | 4 +- Makefile | 4 +- .../dts/intel/socfpga/socfpga_cyclone5_sodia.dts | 6 +- .../boot/dts/marvell/kirkwood-openrd-client.dts | 2 +- arch/arm64/boot/dts/freescale/imx8mp.dtsi | 4 +- arch/arm64/boot/dts/marvell/cn9130-cf.dtsi | 7 +- arch/arm64/boot/dts/marvell/cn9131-cf-solidwan.dts | 6 +- arch/arm64/boot/dts/marvell/cn9132-clearfog.dts | 22 +- arch/arm64/boot/dts/marvell/cn9132-sr-cex7.dtsi | 8 + .../boot/dts/rockchip/rk3588s-orangepi-5.dtsi | 3 +- arch/riscv/include/asm/pgtable.h | 17 + arch/x86/Kconfig | 2 +- arch/x86/include/asm/topology.h | 10 + arch/x86/kernel/cpu/topology.c | 13 + drivers/cpufreq/cpufreq.c | 20 +- drivers/firewire/core-cdev.c | 2 +- drivers/gpio/gpio-regmap.c | 2 +- drivers/gpio/gpiolib-acpi-quirks.c | 14 + drivers/gpio/gpiolib.c | 21 +- drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 44 +- drivers/gpu/drm/amd/amdkfd/kfd_topology.c | 3 +- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 12 +- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h | 7 + drivers/gpu/drm/amd/display/dc/dc.h | 1 - .../drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c | 6 +- .../drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c | 6 +- drivers/gpu/drm/ast/ast_dp.c | 2 +- drivers/gpu/drm/gma500/oaktrail_hdmi.c | 2 +- drivers/gpu/drm/i915/display/intel_ddi.c | 5 +- drivers/gpu/drm/panfrost/panfrost_drv.c | 61 ++- drivers/gpu/drm/panthor/panthor_sched.c | 8 +- drivers/gpu/drm/xe/abi/guc_actions_abi.h | 5 - drivers/gpu/drm/xe/abi/guc_klvs_abi.h | 40 -- drivers/gpu/drm/xe/xe_bo_evict.c | 4 +- drivers/gpu/drm/xe/xe_configfs.c | 2 +- drivers/gpu/drm/xe/xe_device_sysfs.c | 2 +- drivers/gpu/drm/xe/xe_gt.c | 3 +- drivers/gpu/drm/xe/xe_guc.c | 62 +-- drivers/gpu/drm/xe/xe_guc.h | 1 - drivers/gpu/drm/xe/xe_guc_submit.c | 87 +--- drivers/gpu/drm/xe/xe_guc_submit.h | 2 - drivers/gpu/drm/xe/xe_uc.c | 4 - drivers/hid/amd-sfh-hid/amd_sfh_client.c | 12 +- drivers/hid/amd-sfh-hid/amd_sfh_common.h | 3 + drivers/hid/amd-sfh-hid/amd_sfh_pcie.c | 4 + drivers/hid/hid-asus.c | 3 + drivers/hid/hid-cp2112.c | 10 +- drivers/hid/hid-multitouch.c | 45 +- .../intel-thc-hid/intel-quickspi/pci-quickspi.c | 2 + .../intel-thc-hid/intel-quickspi/quickspi-dev.h | 2 + drivers/i2c/busses/i2c-designware-platdrv.c | 7 +- drivers/infiniband/hw/mlx5/devx.c | 1 + drivers/iommu/iommufd/eventq.c | 9 +- drivers/iommu/iommufd/main.c | 35 +- drivers/mmc/host/sdhci-cadence.c | 11 + drivers/net/can/rcar/rcar_can.c | 8 +- drivers/net/can/spi/hi311x.c | 1 + drivers/net/can/sun4i_can.c | 1 + drivers/net/can/usb/etas_es58x/es58x_core.c | 3 +- drivers/net/can/usb/mcba_usb.c | 1 + drivers/net/can/usb/peak_usb/pcan_usb_core.c | 2 +- drivers/net/dsa/lantiq_gswip.c | 21 +- drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c | 2 +- drivers/net/ethernet/freescale/fec_main.c | 4 +- drivers/net/ethernet/intel/i40e/i40e.h | 3 +- drivers/net/ethernet/intel/i40e/i40e_main.c | 26 +- drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 110 ++-- drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h | 3 +- drivers/net/ethernet/marvell/octeontx2/af/cgx.c | 3 +- .../net/ethernet/marvell/octeontx2/nic/otx2_tc.c | 2 +- drivers/net/ethernet/mellanox/mlx5/core/en_stats.c | 1 + drivers/net/ethernet/mellanox/mlx5/core/fs_core.c | 2 +- drivers/net/ethernet/mellanox/mlx5/core/fs_core.h | 1 + .../net/ethernet/mellanox/mlx5/core/fs_counters.c | 25 +- .../mellanox/mlx5/core/steering/hws/action.c | 7 +- .../mellanox/mlx5/core/steering/hws/fs_hws.c | 18 +- .../mellanox/mlx5/core/steering/hws/fs_hws_pools.c | 8 +- .../mellanox/mlx5/core/steering/hws/mlx5hws.h | 7 +- drivers/net/phy/bcm-phy-ptp.c | 6 +- drivers/net/phy/sfp.c | 24 +- drivers/net/tun.c | 3 + drivers/net/wireless/intel/iwlwifi/pcie/tx.c | 3 +- drivers/net/wireless/virtual/virt_wifi.c | 4 +- drivers/pinctrl/mediatek/pinctrl-airoha.c | 31 +- drivers/platform/x86/lg-laptop.c | 34 +- drivers/platform/x86/oxpec.c | 7 + drivers/spi/spi-cadence-quadspi.c | 90 +++- drivers/ufs/core/ufs-mcq.c | 4 +- drivers/usb/core/quirks.c | 2 +- drivers/vhost/net.c | 33 +- drivers/video/fbdev/core/fbcon.c | 13 +- fs/afs/server.c | 3 +- fs/btrfs/volumes.c | 5 + fs/hugetlbfs/inode.c | 10 +- fs/netfs/buffered_read.c | 10 +- fs/netfs/direct_read.c | 7 +- fs/netfs/direct_write.c | 6 +- fs/netfs/internal.h | 1 + fs/netfs/objects.c | 30 +- fs/netfs/read_pgpriv2.c | 2 +- fs/netfs/read_single.c | 2 +- fs/netfs/write_issue.c | 3 +- fs/nfs/file.c | 33 ++ fs/nfs/inode.c | 9 +- fs/nfs/internal.h | 2 + fs/nfs/nfs42proc.c | 33 +- fs/nfs/nfstrace.h | 1 + fs/proc/task_mmu.c | 3 + fs/smb/client/smb2inode.c | 2 +- fs/smb/server/transport_rdma.c | 22 +- include/crypto/if_alg.h | 2 +- include/linux/firmware/imx/sm.h | 47 ++ include/linux/mlx5/fs.h | 2 + include/net/bluetooth/hci_core.h | 21 + kernel/bpf/core.c | 5 +- kernel/bpf/verifier.c | 6 +- kernel/fork.c | 2 +- kernel/futex/requeue.c | 6 +- kernel/sched/ext_idle.c | 52 +- kernel/sched/ext_idle.h | 7 - kernel/trace/fgraph.c | 12 + kernel/trace/fprobe.c | 7 +- kernel/trace/trace_dynevent.c | 4 + kernel/trace/trace_osnoise.c | 3 +- kernel/vhost_task.c | 3 +- mm/damon/sysfs.c | 4 +- mm/kmsan/core.c | 10 +- mm/kmsan/kmsan_test.c | 16 + net/bluetooth/hci_event.c | 30 +- net/bluetooth/hci_sync.c | 7 + net/bluetooth/mgmt.c | 259 +++++++--- net/bluetooth/mgmt_util.c | 46 ++ net/bluetooth/mgmt_util.h | 3 + net/core/skbuff.c | 2 +- net/ipv4/nexthop.c | 7 + net/smc/smc_loopback.c | 14 +- net/xfrm/xfrm_device.c | 2 +- net/xfrm/xfrm_state.c | 3 + sound/pci/hda/patch_realtek.c | 11 + sound/soc/intel/boards/sof_es8336.c | 10 + sound/soc/intel/boards/sof_rt5682.c | 7 + sound/soc/intel/common/soc-acpi-intel-ptl-match.c | 32 ++ sound/usb/mixer_quirks.c | 571 +++++++++++++++------ sound/usb/quirks.c | 24 +- sound/usb/usbaudio.h | 4 + .../testing/selftests/bpf/prog_tests/free_timer.c | 4 + tools/testing/selftests/bpf/prog_tests/timer.c | 4 + .../testing/selftests/bpf/prog_tests/timer_crash.c | 4 + .../selftests/bpf/prog_tests/timer_lockup.c | 4 + tools/testing/selftests/bpf/prog_tests/timer_mim.c | 4 + .../filesystems/mount-notify/mount-notify_test.c | 17 +- .../mount-notify/mount-notify_test_ns.c | 18 +- tools/testing/selftests/net/fib_nexthops.sh | 12 +- 153 files changed, 1833 insertions(+), 852 deletions(-)

1 month

13
155
0 0

KVM: arm64: Regression in at least linux-6.1.y tree with recent FPSIMD/SVE/SME fix

by Kenneth Van Alstyne

Greetings: Sending via plain text email -- apologies if you receive this twice. If this isn't the process for reporting a regression in a LTS kernel per https://www.kernel.org/doc/html/latest/admin-guide/reporting-issues.html, I'm happy to follow another process. Kernel 6.1.149 introduced a regression, at least on our ARM Cortex A57-based platforms, via commit 8f4dc4e54eed4bebb18390305eb1f721c00457e1 in arch/arm64/kernel/fpsimd.c where booting KVM VMs eventually leads to a spinlock recursion BUG and crash of the box. Reverting that commit via the below reverts to the old (working) behavior: diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c index 837d1937300a57..bc42163a7fd1f0 100644 --- a/arch/arm64/kernel/fpsimd.c +++ b/arch/arm64/kernel/fpsimd.c @@ -1851,10 +1851,10 @@ void fpsimd_save_and_flush_cpu_state(void) if (!system_supports_fpsimd()) return; WARN_ON(preemptible()); - get_cpu_fpsimd_context(); + __get_cpu_fpsimd_context(); fpsimd_save(); fpsimd_flush_cpu_state(); - put_cpu_fpsimd_context(); + __put_cpu_fpsimd_context(); } #ifdef CONFIG_KERNEL_MODE_NEON It's not entirely clear to me if this is specific to our firmware, specific to ARM Cortex A57, or more systemic as we lack sufficiently differentiated hardware to know. I've tested on the latest 6.1 kernel in addition to the one in the log below and have also tested a number of firmware versions available for these boxes. Steps to reproduce: Boot VM in qemu-system-aarch64 with "-accel kvm" and "-cpu host" flags set -- no other arguments seem to matter Generate CPU load in VM Kernel log: [sjc1] root@si-compute-kvm-e0fff70016b4:/# [ 805.905413] BUG: spinlock recursion on CPU#7, CPU 3/KVM/57616 [ 805.905452] lock: 0xffff3045ef850240, .magic: dead4ead, .owner: CPU 3/KVM/57616, .owner_cpu: 7 [ 805.905477] CPU: 7 PID: 57616 Comm: CPU 3/KVM Tainted: G O 6.1.152 #1 [ 805.905495] Hardware name: SoftIron SoftIron Platform Mainboard/SoftIron Platform Mainboard, BIOS 1.31 May 11 2023 [ 805.905516] Call trace: [ 805.905524] dump_backtrace+0xe4/0x110 [ 805.905538] show_stack+0x20/0x30 [ 805.905548] dump_stack_lvl+0x6c/0x88 [ 805.905561] dump_stack+0x18/0x34 [ 805.905571] spin_dump+0x98/0xac [ 805.905583] do_raw_spin_lock+0x70/0x128 [ 805.905596] _raw_spin_lock+0x18/0x28 [ 805.905607] raw_spin_rq_lock_nested+0x18/0x28 [ 805.905620] update_blocked_averages+0x70/0x550 [ 805.905634] run_rebalance_domains+0x50/0x70 [ 805.905645] handle_softirqs+0x198/0x328 [ 805.905659] __do_softirq+0x1c/0x28 [ 805.905669] ____do_softirq+0x18/0x28 [ 805.905680] call_on_irq_stack+0x30/0x48 [ 805.905691] do_softirq_own_stack+0x24/0x30 [ 805.905703] do_softirq+0x74/0x90 [ 805.905714] __local_bh_enable_ip+0x64/0x80 [ 805.905727] fpsimd_save_and_flush_cpu_state+0x5c/0x68 [ 805.905740] kvm_arch_vcpu_put_fp+0x4c/0x88 [ 805.905752] kvm_arch_vcpu_put+0x28/0x88 [ 805.905764] kvm_sched_out+0x38/0x58 [ 805.905774] __schedule+0x55c/0x6c8 [ 805.905786] schedule+0x60/0xa8 [ 805.905796] kvm_vcpu_block+0x5c/0x90 [ 805.905807] kvm_vcpu_halt+0x440/0x468 [ 805.905818] kvm_vcpu_wfi+0x3c/0x70 [ 805.905828] kvm_handle_wfx+0x18c/0x1f0 [ 805.905840] handle_exit+0xb8/0x148 [ 805.905851] kvm_arch_vcpu_ioctl_run+0x6c4/0x7b0 [ 805.905863] kvm_vcpu_ioctl+0x1d0/0x8b8 [ 805.905874] __arm64_sys_ioctl+0x9c/0xe0 [ 805.905886] invoke_syscall+0x78/0x108 [ 805.905899] el0_svc_common.constprop.3+0xb4/0xf8 [ 805.905912] do_el0_svc+0x78/0x88 [ 805.905922] el0_svc+0x48/0x78 [ 805.905932] el0t_64_sync_handler+0x40/0xc0 [ 805.905943] el0t_64_sync+0x18c/0x190 [ 806.048300] hrtimer: interrupt took 2976 ns [ 826.924613] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: SoC 0 became not ready SoC 0 became ready Thanks, -- Kenneth Van Alstyne, Jr.

1 month

2
2
0 0

[PATCH 6.6 00/91] 6.6.109-rc1 review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 6.6.109 release. There are 91 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, 02 Oct 2025 14:37:59 +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/v6.x/stable-review/patch-6.6.109-rc… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.6.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 6.6.109-rc1 David Laight <David.Laight(a)ACULAB.COM> minmax.h: remove some #defines that are only expanded once David Laight <David.Laight(a)ACULAB.COM> minmax.h: simplify the variants of clamp() David Laight <David.Laight(a)ACULAB.COM> minmax.h: move all the clamp() definitions after the min/max() ones David Laight <David.Laight(a)ACULAB.COM> minmax.h: use BUILD_BUG_ON_MSG() for the lo < hi test in clamp() David Laight <David.Laight(a)ACULAB.COM> minmax.h: reduce the #define expansion of min(), max() and clamp() David Laight <David.Laight(a)ACULAB.COM> minmax.h: update some comments David Laight <David.Laight(a)ACULAB.COM> minmax.h: add whitespace around operators and after commas Linus Torvalds <torvalds(a)linux-foundation.org> minmax: fix up min3() and max3() too Linus Torvalds <torvalds(a)linux-foundation.org> minmax: improve macro expansion and type checking Linus Torvalds <torvalds(a)linux-foundation.org> minmax: don't use max() in situations that want a C constant expression Linus Torvalds <torvalds(a)linux-foundation.org> minmax: simplify min()/max()/clamp() implementation Linus Torvalds <torvalds(a)linux-foundation.org> minmax: make generic MIN() and MAX() macros available everywhere Lukasz Czapnik <lukasz.czapnik(a)intel.com> i40e: add validation for ring_len param Justin Bronder <jsbronder(a)cold-front.org> i40e: increase max descriptors for XL710 Nirmoy Das <nirmoyd(a)nvidia.com> drm/ast: Use msleep instead of mdelay for edid read Hans de Goede <hansg(a)kernel.org> gpiolib: Extend software-node support to support secondary software-nodes Jan Kara <jack(a)suse.cz> loop: Avoid updating block size under exclusive owner David Hildenbrand <david(a)redhat.com> mm/migrate_device: don't add folio to be freed to LRU in migrate_device_finalize() Kefeng Wang <wangkefeng.wang(a)huawei.com> mm: migrate_device: use more folio in migrate_device_finalize() Florian Fainelli <florian.fainelli(a)broadcom.com> ARM: bcm: Select ARM_GIC_V3 for ARCH_BRCMSTB Nathan Chancellor <nathan(a)kernel.org> s390/cpum_cf: Fix uninitialized warning after backport of ce971233242b Thomas Zimmermann <tzimmermann(a)suse.de> fbcon: Fix OOB access in font allocation Samasth Norway Ananda <samasth.norway.ananda(a)oracle.com> fbcon: fix integer overflow in fbcon_do_set_font Jinjiang Tu <tujinjiang(a)huawei.com> mm/hugetlb: fix folio is still mapped when deleted Eric Biggers <ebiggers(a)kernel.org> kmsan: fix out-of-bounds access to shadow memory Zhen Ni <zhen.ni(a)easystack.cn> afs: Fix potential null pointer dereference in afs_put_server Nobuhiro Iwamatsu <iwamatsu(a)nigauri.org> ARM: dts: socfpga: sodia: Fix mdio bus probe and PHY address Masami Hiramatsu (Google) <mhiramat(a)kernel.org> tracing: dynevent: Add a missing lockdown check on dynevent Eric Biggers <ebiggers(a)kernel.org> crypto: af_alg - Fix incorrect boolean values in af_alg_ctx Lukasz Czapnik <lukasz.czapnik(a)intel.com> i40e: improve VF MAC filters accounting Lukasz Czapnik <lukasz.czapnik(a)intel.com> i40e: add mask to apply valid bits for itr_idx Lukasz Czapnik <lukasz.czapnik(a)intel.com> i40e: add max boundary check for VF filters Lukasz Czapnik <lukasz.czapnik(a)intel.com> i40e: fix validation of VF state in get resources Lukasz Czapnik <lukasz.czapnik(a)intel.com> i40e: fix input validation logic for action_meta Lukasz Czapnik <lukasz.czapnik(a)intel.com> i40e: fix idx validation in config queues msg Lukasz Czapnik <lukasz.czapnik(a)intel.com> i40e: fix idx validation in i40e_validate_queue_map Amit Chaudhari <amitchaudhari(a)mac.com> HID: asus: add support for missing PX series fn keys Sang-Heon Jeon <ekffu200098(a)gmail.com> smb: client: fix wrong index reference in smb2_compound_op() Sebastian Andrzej Siewior <bigeasy(a)linutronix.de> futex: Prevent use-after-free during requeue-PI Zabelin Nikita <n.zabelin(a)mt-integration.ru> drm/gma500: Fix null dereference in hdmi teardown Dan Carpenter <dan.carpenter(a)linaro.org> octeontx2-pf: Fix potential use after free in otx2_tc_add_flow() Vladimir Oltean <vladimir.oltean(a)nxp.com> net: dsa: lantiq_gswip: suppress -EINVAL errors for bridge FDB entries added to the CPU port Vladimir Oltean <vladimir.oltean(a)nxp.com> net: dsa: lantiq_gswip: move gswip_add_single_port_br() call to port_setup() Martin Schiller <ms(a)dev.tdt.de> net: dsa: lantiq_gswip: do also enable or disable cpu port Ido Schimmel <idosch(a)nvidia.com> selftests: fib_nexthops: Fix creation of non-FDB nexthops Ido Schimmel <idosch(a)nvidia.com> nexthop: Forbid FDB status change while nexthop is in a group Jason Baron <jbaron(a)akamai.com> net: allow alloc_skb_with_frags() to use MAX_SKB_FRAGS Alok Tiwari <alok.a.tiwari(a)oracle.com> bnxt_en: correct offset handling for IPv6 destination address Sebastian Andrzej Siewior <bigeasy(a)linutronix.de> vhost: Take a reference on the task in struct vhost_task. Luiz Augusto von Dentz <luiz.von.dentz(a)intel.com> Bluetooth: hci_event: Fix UAF in hci_acl_create_conn_sync Luiz Augusto von Dentz <luiz.von.dentz(a)intel.com> Bluetooth: hci_sync: Fix hci_resume_advertising_sync Petr Malat <oss(a)malat.biz> ethernet: rvu-af: Remove slash from the driver name Stéphane Grosjean <stephane.grosjean(a)hms-networks.com> can: peak_usb: fix shift-out-of-bounds issue Vincent Mailhol <mailhol(a)kernel.org> can: mcba_usb: populate ndo_change_mtu() to prevent buffer overflow Vincent Mailhol <mailhol(a)kernel.org> can: sun4i_can: populate ndo_change_mtu() to prevent buffer overflow Vincent Mailhol <mailhol(a)kernel.org> can: hi311x: populate ndo_change_mtu() to prevent buffer overflow Vincent Mailhol <mailhol(a)kernel.org> can: etas_es58x: populate ndo_change_mtu() to prevent buffer overflow Sabrina Dubroca <sd(a)queasysnail.net> xfrm: xfrm_alloc_spi shouldn't use 0 as SPI Leon Hwang <leon.hwang(a)linux.dev> bpf: Reject bpf_timer for PREEMPT_RT Geert Uytterhoeven <geert+renesas(a)glider.be> can: rcar_can: rcar_can_resume(): fix s2ram with PSCI James Guan <guan_yufei(a)163.com> wifi: virt_wifi: Fix page fault on connect Stefan Metzmacher <metze(a)samba.org> smb: server: don't use delayed_work for post_recv_credits_work Christian Loehle <christian.loehle(a)arm.com> cpufreq: Initialize cpufreq-based invariance before subsys Jihed Chaibi <jihed.chaibi.dev(a)gmail.com> ARM: dts: kirkwood: Fix sound DAI cells for OpenRD clients Peng Fan <peng.fan(a)nxp.com> arm64: dts: imx8mp: Correct thermal sensor index Hugh Dickins <hughd(a)google.com> mm: folio_may_be_lru_cached() unless folio_test_large() Hugh Dickins <hughd(a)google.com> mm/gup: local lru_add_drain() to avoid lru_add_drain_all() Hugh Dickins <hughd(a)google.com> mm/gup: check ref_count instead of lru before migration Shivank Garg <shivankg(a)amd.com> mm: add folio_expected_ref_count() for reference count calculation David Hildenbrand <david(a)redhat.com> mm/gup: revert "mm: gup: fix infinite loop within __get_longterm_locked" Or Har-Toov <ohartoov(a)nvidia.com> IB/mlx5: Fix obj_type mismatch for SRQ event subscriptions qaqland <anguoli(a)uniontech.com> ALSA: usb-audio: Add mute TLV for playback volumes on more devices Cryolitia PukNgae <cryolitia(a)uniontech.com> ALSA: usb-audio: move mixer_quirks' min_mute into common quirk noble.yang <noble.yang(a)comtrue-inc.com> ALSA: usb-audio: Add DSD support for Comtrue USB Audio device Heikki Krogerus <heikki.krogerus(a)linux.intel.com> i2c: designware: Add quirk for Intel Xe Benoît Monin <benoit.monin(a)bootlin.com> mmc: sdhci-cadence: add Mobileye eyeQ support Jiayi Li <lijiayi(a)kylinos.cn> usb: core: Add 0x prefix to quirks debug output Takashi Iwai <tiwai(a)suse.de> ALSA: usb-audio: Fix build with CONFIG_INPUT=n Chen Ni <nichen(a)iscas.ac.cn> ALSA: usb-audio: Convert comma to semicolon Kerem Karabay <kekrby(a)gmail.com> HID: multitouch: specify that Apple Touch Bar is direct Kerem Karabay <kekrby(a)gmail.com> HID: multitouch: take cls->maxcontacts into account for Apple Touch Bar even without a HID_DG_CONTACTMAX field Kerem Karabay <kekrby(a)gmail.com> HID: multitouch: support getting the tip state from HID_DG_TOUCH fields in Apple Touch Bar Kerem Karabay <kekrby(a)gmail.com> HID: multitouch: Get the contact ID from HID_DG_TRANSDUCER_INDEX fields in case of Apple Touch Bar Cristian Ciocaltea <cristian.ciocaltea(a)collabora.com> ALSA: usb-audio: Add mixer quirk for Sony DualSense PS5 Cristian Ciocaltea <cristian.ciocaltea(a)collabora.com> ALSA: usb-audio: Remove unneeded wmb() in mixer_quirks Cristian Ciocaltea <cristian.ciocaltea(a)collabora.com> ALSA: usb-audio: Simplify NULL comparison in mixer_quirks Cristian Ciocaltea <cristian.ciocaltea(a)collabora.com> ALSA: usb-audio: Avoid multiple assignments in mixer_quirks Cristian Ciocaltea <cristian.ciocaltea(a)collabora.com> ALSA: usb-audio: Drop unnecessary parentheses in mixer_quirks Cristian Ciocaltea <cristian.ciocaltea(a)collabora.com> ALSA: usb-audio: Fix block comments in mixer_quirks Takashi Sakamoto <o-takashi(a)sakamocchi.jp> firewire: core: fix overlooked update of subsystem ABI version Alok Tiwari <alok.a.tiwari(a)oracle.com> scsi: ufs: mcq: Fix memory allocation checks for SQE and CQE ------------- Diffstat: Makefile | 4 +- .../dts/intel/socfpga/socfpga_cyclone5_sodia.dts | 6 +- .../boot/dts/marvell/kirkwood-openrd-client.dts | 2 +- arch/arm/mach-bcm/Kconfig | 1 + arch/arm64/boot/dts/freescale/imx8mp.dtsi | 4 +- arch/s390/kernel/perf_cpum_cf.c | 4 +- arch/um/drivers/mconsole_user.c | 2 + drivers/block/loop.c | 40 ++- drivers/cpufreq/cpufreq.c | 20 +- drivers/edac/skx_common.h | 1 - drivers/firewire/core-cdev.c | 2 +- drivers/gpio/gpiolib.c | 19 +- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 2 + .../gpu/drm/amd/display/modules/hdcp/hdcp_ddc.c | 2 + drivers/gpu/drm/amd/pm/powerplay/hwmgr/ppevvmath.h | 14 +- .../drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c | 2 + .../gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c | 3 + .../gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c | 3 + drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c | 2 +- drivers/gpu/drm/ast/ast_dp.c | 2 +- drivers/gpu/drm/gma500/oaktrail_hdmi.c | 2 +- drivers/gpu/drm/radeon/evergreen_cs.c | 2 + drivers/hid/hid-asus.c | 3 + drivers/hid/hid-multitouch.c | 45 +++- drivers/hwmon/adt7475.c | 24 +- drivers/i2c/busses/i2c-designware-platdrv.c | 7 +- drivers/infiniband/hw/mlx5/devx.c | 1 + drivers/input/touchscreen/cyttsp4_core.c | 2 +- drivers/irqchip/irq-sun6i-r.c | 2 +- drivers/media/dvb-frontends/stv0367_priv.h | 3 + drivers/mmc/host/sdhci-cadence.c | 11 + drivers/net/can/rcar/rcar_can.c | 8 +- drivers/net/can/spi/hi311x.c | 1 + drivers/net/can/sun4i_can.c | 1 + drivers/net/can/usb/etas_es58x/es58x_core.c | 3 +- drivers/net/can/usb/etas_es58x/es58x_devlink.c | 2 +- drivers/net/can/usb/mcba_usb.c | 1 + drivers/net/can/usb/peak_usb/pcan_usb_core.c | 2 +- drivers/net/dsa/lantiq_gswip.c | 41 +-- drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c | 2 +- drivers/net/ethernet/intel/i40e/i40e.h | 4 +- drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 25 +- drivers/net/ethernet/intel/i40e/i40e_main.c | 26 +- drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 110 ++++---- drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h | 3 +- drivers/net/ethernet/marvell/octeontx2/af/cgx.c | 3 +- .../net/ethernet/marvell/octeontx2/nic/otx2_tc.c | 2 +- drivers/net/fjes/fjes_main.c | 4 +- drivers/net/wireless/virtual/virt_wifi.c | 4 +- drivers/nfc/pn544/i2c.c | 2 - drivers/platform/x86/sony-laptop.c | 1 - drivers/scsi/isci/init.c | 6 +- .../pci/hive_isp_css_include/math_support.h | 5 - drivers/ufs/core/ufs-mcq.c | 4 +- drivers/usb/core/quirks.c | 2 +- drivers/video/fbdev/core/fbcon.c | 13 +- fs/afs/server.c | 3 +- fs/btrfs/tree-checker.c | 2 +- fs/hugetlbfs/inode.c | 10 +- fs/smb/client/smb2inode.c | 2 +- fs/smb/server/transport_rdma.c | 18 +- include/crypto/if_alg.h | 2 +- include/linux/compiler.h | 9 + include/linux/minmax.h | 234 +++++++++------- include/linux/mm.h | 55 ++++ include/linux/swap.h | 10 + include/net/bluetooth/hci_core.h | 21 ++ kernel/bpf/verifier.c | 4 + kernel/futex/requeue.c | 6 +- kernel/trace/preemptirq_delay_test.c | 2 - kernel/trace/trace_dynevent.c | 4 + kernel/vhost_task.c | 3 +- lib/btree.c | 1 - lib/decompress_unlzma.c | 2 + lib/vsprintf.c | 2 +- mm/gup.c | 28 +- mm/kmsan/core.c | 10 +- mm/kmsan/kmsan_test.c | 16 ++ mm/migrate_device.c | 42 ++- mm/mlock.c | 6 +- mm/swap.c | 4 +- mm/zsmalloc.c | 2 - net/bluetooth/hci_event.c | 26 +- net/bluetooth/hci_sync.c | 7 + net/core/skbuff.c | 2 +- net/ipv4/nexthop.c | 7 + net/xfrm/xfrm_state.c | 3 + sound/usb/mixer_quirks.c | 295 +++++++++++++++++++-- sound/usb/quirks.c | 24 +- sound/usb/usbaudio.h | 4 + tools/testing/selftests/mm/mremap_test.c | 2 + tools/testing/selftests/net/fib_nexthops.sh | 12 +- tools/testing/selftests/seccomp/seccomp_bpf.c | 2 + 93 files changed, 1031 insertions(+), 363 deletions(-)

1 month

11
102
0 0

Inquiry: Availability for New Project Estimate

by Chester

1 month

1
0
0 0

[PATCH v3 1/2] mm/ksm: fix flag-dropping behavior in ksm_madvise

by Jakub Acs

syzkaller discovered the following crash: (kernel BUG) [ 44.607039] ------------[ cut here ]------------ [ 44.607422] kernel BUG at mm/userfaultfd.c:2067! [ 44.608148] Oops: invalid opcode: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN NOPTI [ 44.608814] CPU: 1 UID: 0 PID: 2475 Comm: reproducer Not tainted 6.16.0-rc6 #1 PREEMPT(none) [ 44.609635] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 44.610695] RIP: 0010:userfaultfd_release_all+0x3a8/0x460 <snip other registers, drop unreliable trace> [ 44.617726] Call Trace: [ 44.617926] <TASK> [ 44.619284] userfaultfd_release+0xef/0x1b0 [ 44.620976] __fput+0x3f9/0xb60 [ 44.621240] fput_close_sync+0x110/0x210 [ 44.622222] __x64_sys_close+0x8f/0x120 [ 44.622530] do_syscall_64+0x5b/0x2f0 [ 44.622840] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 44.623244] RIP: 0033:0x7f365bb3f227 Kernel panics because it detects UFFD inconsistency during userfaultfd_release_all(). Specifically, a VMA which has a valid pointer to vma->vm_userfaultfd_ctx, but no UFFD flags in vma->vm_flags. The inconsistency is caused in ksm_madvise(): when user calls madvise() with MADV_UNMEARGEABLE on a VMA that is registered for UFFD in MINOR mode, it accidentally clears all flags stored in the upper 32 bits of vma->vm_flags. Assuming x86_64 kernel build, unsigned long is 64-bit and unsigned int and int are 32-bit wide. This setup causes the following mishap during the &= ~VM_MERGEABLE assignment. VM_MERGEABLE is a 32-bit constant of type unsigned int, 0x8000'0000. After ~ is applied, it becomes 0x7fff'ffff unsigned int, which is then promoted to unsigned long before the & operation. This promotion fills upper 32 bits with leading 0s, as we're doing unsigned conversion (and even for a signed conversion, this wouldn't help as the leading bit is 0). & operation thus ends up AND-ing vm_flags with 0x0000'0000'7fff'ffff instead of intended 0xffff'ffff'7fff'ffff and hence accidentally clears the upper 32-bits of its value. Fix it by changing `VM_MERGEABLE` constant to unsigned long, using the BIT() macro. Note: other VM_* flags are not affected: This only happens to the VM_MERGEABLE flag, as the other VM_* flags are all constants of type int and after ~ operation, they end up with leading 1 and are thus converted to unsigned long with leading 1s. Note 2: After commit 31defc3b01d9 ("userfaultfd: remove (VM_)BUG_ON()s"), this is no longer a kernel BUG, but a WARNING at the same place: [ 45.595973] WARNING: CPU: 1 PID: 2474 at mm/userfaultfd.c:2067 but the root-cause (flag-drop) remains the same. Fixes: 7677f7fd8be76 ("userfaultfd: add minor fault registration mode") Signed-off-by: Jakub Acs <acsjakub(a)amazon.de> Cc: Andrew Morton <akpm(a)linux-foundation.org> Cc: David Hildenbrand <david(a)redhat.com> Cc: Xu Xin <xu.xin16(a)zte.com.cn> Cc: Chengming Zhou <chengming.zhou(a)linux.dev> Cc: Peter Xu <peterx(a)redhat.com> Cc: Axel Rasmussen <axelrasmussen(a)google.com> Cc: linux-mm(a)kvack.org Cc: linux-kernel(a)vger.kernel.org Cc: stable(a)vger.kernel.org --- include/linux/mm.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index 1ae97a0b8ec7..c6794d0e24eb 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -296,7 +296,7 @@ extern unsigned int kobjsize(const void *objp); #define VM_MIXEDMAP 0x10000000 /* Can contain "struct page" and pure PFN pages */ #define VM_HUGEPAGE 0x20000000 /* MADV_HUGEPAGE marked this vma */ #define VM_NOHUGEPAGE 0x40000000 /* MADV_NOHUGEPAGE marked this vma */ -#define VM_MERGEABLE 0x80000000 /* KSM may merge identical pages */ +#define VM_MERGEABLE BIT(31) /* KSM may merge identical pages */ #ifdef CONFIG_ARCH_USES_HIGH_VMA_FLAGS #define VM_HIGH_ARCH_BIT_0 32 /* bit only usable on 64-bit architectures */ -- 2.47.3 Amazon Web Services Development Center Germany GmbH Tamara-Danz-Str. 13 10243 Berlin Geschaeftsfuehrung: Christian Schlaeger Eingetragen am Amtsgericht Charlottenburg unter HRB 257764 B Sitz: Berlin Ust-ID: DE 365 538 597

1 month

3
2
0 0

[PATCH] nvme-tcp: fix usage of page_frag_cache

by Dmitry Bogdanov

nvme uses page_frag_cache to preallocate PDU for each preallocated request of block device. Block devices are created in parallel threads, consequently page_frag_cache is used in not thread-safe manner. That leads to incorrect refcounting of backstore pages and premature free. That can be catched by !sendpage_ok inside network stack: WARNING: CPU: 7 PID: 467 at ../net/core/skbuff.c:6931 skb_splice_from_iter+0xfa/0x310. tcp_sendmsg_locked+0x782/0xce0 tcp_sendmsg+0x27/0x40 sock_sendmsg+0x8b/0xa0 nvme_tcp_try_send_cmd_pdu+0x149/0x2a0 Then random panic may occur. Fix that by serializing the usage of page_frag_cache. Cc: stable(a)vger.kernel.org # 6.12 Fixes: 4e893ca81170 ("nvme_core: scan namespaces asynchronously") Signed-off-by: Dmitry Bogdanov <d.bogdanov(a)yadro.com> --- drivers/nvme/host/tcp.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/nvme/host/tcp.c b/drivers/nvme/host/tcp.c index 1413788ca7d52..823e07759e0d3 100644 --- a/drivers/nvme/host/tcp.c +++ b/drivers/nvme/host/tcp.c @@ -145,6 +145,7 @@ struct nvme_tcp_queue { struct mutex queue_lock; struct mutex send_mutex; + struct mutex pf_cache_lock; struct llist_head req_list; struct list_head send_list; @@ -556,9 +557,11 @@ static int nvme_tcp_init_request(struct blk_mq_tag_set *set, struct nvme_tcp_queue *queue = &ctrl->queues[queue_idx]; u8 hdgst = nvme_tcp_hdgst_len(queue); + mutex_lock(&queue->pf_cache_lock); req->pdu = page_frag_alloc(&queue->pf_cache, sizeof(struct nvme_tcp_cmd_pdu) + hdgst, GFP_KERNEL | __GFP_ZERO); + mutex_unlock(&queue->pf_cache_lock); if (!req->pdu) return -ENOMEM; @@ -1420,9 +1423,11 @@ static int nvme_tcp_alloc_async_req(struct nvme_tcp_ctrl *ctrl) struct nvme_tcp_request *async = &ctrl->async_req; u8 hdgst = nvme_tcp_hdgst_len(queue); + mutex_lock(&queue->pf_cache_lock); async->pdu = page_frag_alloc(&queue->pf_cache, sizeof(struct nvme_tcp_cmd_pdu) + hdgst, GFP_KERNEL | __GFP_ZERO); + mutex_unlock(&queue->pf_cache_lock); if (!async->pdu) return -ENOMEM; @@ -1450,6 +1455,7 @@ static void nvme_tcp_free_queue(struct nvme_ctrl *nctrl, int qid) kfree(queue->pdu); mutex_destroy(&queue->send_mutex); mutex_destroy(&queue->queue_lock); + mutex_destroy(&queue->pf_cache_lock); } static int nvme_tcp_init_connection(struct nvme_tcp_queue *queue) @@ -1772,6 +1778,7 @@ static int nvme_tcp_alloc_queue(struct nvme_ctrl *nctrl, int qid, INIT_LIST_HEAD(&queue->send_list); mutex_init(&queue->send_mutex); INIT_WORK(&queue->io_work, nvme_tcp_io_work); + mutex_init(&queue->pf_cache_lock); if (qid > 0) queue->cmnd_capsule_len = nctrl->ioccsz * 16; @@ -1903,6 +1910,7 @@ static int nvme_tcp_alloc_queue(struct nvme_ctrl *nctrl, int qid, err_destroy_mutex: mutex_destroy(&queue->send_mutex); mutex_destroy(&queue->queue_lock); + mutex_destroy(&queue->pf_cache_lock); return ret; } -- 2.25.1

1 month

2
4
0 0

[PATCH 5.4 00/81] 5.4.300-rc1 review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 5.4.300 release. There are 81 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, 02 Oct 2025 14:37:59 +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-5.4.300-rc… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.4.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 5.4.300-rc1 Jinjiang Tu <tujinjiang(a)huawei.com> mm/hugetlb: fix folio is still mapped when deleted Lukasz Czapnik <lukasz.czapnik(a)intel.com> i40e: add mask to apply valid bits for itr_idx Lukasz Czapnik <lukasz.czapnik(a)intel.com> i40e: fix validation of VF state in get resources Lukasz Czapnik <lukasz.czapnik(a)intel.com> i40e: fix idx validation in config queues msg Lukasz Czapnik <lukasz.czapnik(a)intel.com> i40e: add validation for ring_len param Justin Bronder <jsbronder(a)cold-front.org> i40e: increase max descriptors for XL710 David Hildenbrand <david(a)redhat.com> mm/migrate_device: don't add folio to be freed to LRU in migrate_device_finalize() Thomas Zimmermann <tzimmermann(a)suse.de> fbcon: Fix OOB access in font allocation Samasth Norway Ananda <samasth.norway.ananda(a)oracle.com> fbcon: fix integer overflow in fbcon_do_set_font Lukasz Czapnik <lukasz.czapnik(a)intel.com> i40e: add max boundary check for VF filters Lukasz Czapnik <lukasz.czapnik(a)intel.com> i40e: fix input validation logic for action_meta Lukasz Czapnik <lukasz.czapnik(a)intel.com> i40e: fix idx validation in i40e_validate_queue_map Zabelin Nikita <n.zabelin(a)mt-integration.ru> drm/gma500: Fix null dereference in hdmi teardown Stéphane Grosjean <stephane.grosjean(a)hms-networks.com> can: peak_usb: fix shift-out-of-bounds issue Vincent Mailhol <mailhol(a)kernel.org> can: mcba_usb: populate ndo_change_mtu() to prevent buffer overflow Vincent Mailhol <mailhol(a)kernel.org> can: sun4i_can: populate ndo_change_mtu() to prevent buffer overflow Vincent Mailhol <mailhol(a)kernel.org> can: hi311x: populate ndo_change_mtu() to prevent buffer overflow Geert Uytterhoeven <geert+renesas(a)glider.be> can: rcar_can: rcar_can_resume(): fix s2ram with PSCI Or Har-Toov <ohartoov(a)nvidia.com> IB/mlx5: Fix obj_type mismatch for SRQ event subscriptions Jiayi Li <lijiayi(a)kylinos.cn> usb: core: Add 0x prefix to quirks debug output Takashi Iwai <tiwai(a)suse.de> ALSA: usb-audio: Fix build with CONFIG_INPUT=n Chen Ni <nichen(a)iscas.ac.cn> ALSA: usb-audio: Convert comma to semicolon Cristian Ciocaltea <cristian.ciocaltea(a)collabora.com> ALSA: usb-audio: Add mixer quirk for Sony DualSense PS5 Cristian Ciocaltea <cristian.ciocaltea(a)collabora.com> ALSA: usb-audio: Remove unneeded wmb() in mixer_quirks Cristian Ciocaltea <cristian.ciocaltea(a)collabora.com> ALSA: usb-audio: Simplify NULL comparison in mixer_quirks Cristian Ciocaltea <cristian.ciocaltea(a)collabora.com> ALSA: usb-audio: Avoid multiple assignments in mixer_quirks Cristian Ciocaltea <cristian.ciocaltea(a)collabora.com> ALSA: usb-audio: Fix block comments in mixer_quirks Maciej S. Szmigiero <maciej.szmigiero(a)oracle.com> KVM: SVM: Sync TPR from LAPIC into VMCB::V_TPR even if AVIC is active Hans de Goede <hansg(a)kernel.org> net: rfkill: gpio: Fix crash due to dereferencering uninitialized pointer Philipp Zabel <p.zabel(a)pengutronix.de> net: rfkill: gpio: add DT support Hugo Villeneuve <hvilleneuve(a)dimonoff.com> serial: sc16is7xx: fix bug in flow control levels init Alan Stern <stern(a)rowland.harvard.edu> USB: gadget: dummy-hcd: Fix locking bug in RT-enabled kernels Jakob Koschel <jakobkoschel(a)gmail.com> usb: gadget: dummy_hcd: remove usage of list iterator past the loop body Colin Ian King <colin.i.king(a)gmail.com> ASoC: SOF: Intel: hda-stream: Fix incorrect variable used in error message Charles Keepax <ckeepax(a)opensource.cirrus.com> ASoC: wm8974: Correct PLL rate rounding Charles Keepax <ckeepax(a)opensource.cirrus.com> ASoC: wm8940: Correct typo in control name Håkon Bugge <haakon.bugge(a)oracle.com> rds: ib: Increment i_fastreg_wrs before bailing out Thomas Fourier <fourier.thomas(a)gmail.com> mmc: mvsdio: Fix dma_unmap_sg() nents value H. Nikolaus Schaller <hns(a)goldelico.com> power: supply: bq27xxx: restrict no-battery detection to bq27000 H. Nikolaus Schaller <hns(a)goldelico.com> power: supply: bq27xxx: fix error return in case of no bq27000 hdq battery Nathan Chancellor <nathan(a)kernel.org> nilfs2: fix CFI failure when accessing /sys/fs/nilfs2/features/* Duoming Zhou <duoming(a)zju.edu.cn> cnic: Fix use-after-free bugs in cnic_delete_task Alexey Nepomnyashih <sdl(a)nppct.ru> net: liquidio: fix overflow in octeon_init_instr_queue() Tariq Toukan <tariqt(a)nvidia.com> Revert "net/mlx5e: Update and set Xon/Xoff upon port speed set" Kuniyuki Iwashima <kuniyu(a)google.com> tcp: Clear tcp_sk(sk)->fastopen_rsk in tcp_disconnect(). Maciej Fijalkowski <maciej.fijalkowski(a)intel.com> i40e: remove redundant memory barrier when cleaning Tx descs Yeounsu Moon <yyyynoom(a)gmail.com> net: natsemi: fix `rx_dropped` double accounting on `netif_rx()` failure Chen Ridong <chenridong(a)huawei.com> cgroup: split cgroup_destroy_wq into 3 workqueues Geert Uytterhoeven <geert+renesas(a)glider.be> pcmcia: omap_cf: Mark driver struct with __refdata to prevent section mismatch Liao Yuanhong <liaoyuanhong(a)vivo.com> wifi: mac80211: fix incorrect type for ret Takashi Sakamoto <o-takashi(a)sakamocchi.jp> ALSA: firewire-motu: drop EPOLLOUT from poll return values as write is not supported Miaohe Lin <linmiaohe(a)huawei.com> mm/memory-failure: fix VM_BUG_ON_PAGE(PagePoisoned(page)) when unpoison memory Bjorn Andersson <bjorn.andersson(a)oss.qualcomm.com> soc: qcom: mdt_loader: Deal with zero e_shentsize Johan Hovold <johan(a)kernel.org> phy: ti-pipe3: fix device leak at unbind Stephan Gerhold <stephan.gerhold(a)linaro.org> dmaengine: qcom: bam_dma: Fix DT error handling for num-channels/ees Anders Roxell <anders.roxell(a)linaro.org> dmaengine: ti: edma: Fix memory allocation size for queue_priority_map Tetsuo Handa <penguin-kernel(a)I-love.SAKURA.ne.jp> can: j1939: j1939_local_ecu_get(): undo increment when j1939_local_ecu_get() fails Tetsuo Handa <penguin-kernel(a)I-love.SAKURA.ne.jp> can: j1939: j1939_sk_bind(): call j1939_priv_put() immediately when j1939_local_ecu_get() failed Michal Schmidt <mschmidt(a)redhat.com> i40e: fix IRQ freeing in i40e_vsi_request_irq_msix error path Nitesh Narayan Lal <nitesh(a)redhat.com> i40e: Use irq_update_affinity_hint() Thomas Gleixner <tglx(a)linutronix.de> genirq: Provide new interfaces for affinity hints Thomas Gleixner <tglx(a)linutronix.de> genirq: Export affinity setter for modules John Garry <john.garry(a)huawei.com> genirq/affinity: Add irq_update_affinity_desc() Kohei Enju <enjuk(a)amazon.com> igb: fix link test skipping when interface is admin down Stefan Wahren <wahrenst(a)gmx.net> net: fec: Fix possible NPD in fec_enet_phy_reset_after_clk_enable() Fabio Porcedda <fabio.porcedda(a)gmail.com> USB: serial: option: add Telit Cinterion LE910C4-WWX new compositions Fabio Porcedda <fabio.porcedda(a)gmail.com> USB: serial: option: add Telit Cinterion FN990A w/audio compositions Fabian Vogt <fvogt(a)suse.de> tty: hvc_console: Call hvc_kick in hvc_write unconditionally Alexander Sverdlin <alexander.sverdlin(a)siemens.com> mtd: nand: raw: atmel: Respect tAR, tCLR in read setup timing Alexander Dahl <ada(a)thorsis.com> mtd: nand: raw: atmel: Fix comment in timings preparation Christophe Kerello <christophe.kerello(a)foss.st.com> mtd: rawnand: stm32_fmc2: avoid overlapping mappings on ECC buffer Wei Yang <richard.weiyang(a)gmail.com> mm/khugepaged: fix the address passed to notifier on testing young Miklos Szeredi <mszeredi(a)redhat.com> fuse: prevent overflow in copy_file_range return value Miklos Szeredi <mszeredi(a)redhat.com> fuse: check if copy_file_range() returns larger than requested size Christophe Kerello <christophe.kerello(a)foss.st.com> mtd: rawnand: stm32_fmc2: fix ECC overwrite Mark Tinguely <mark.tinguely(a)oracle.com> ocfs2: fix recursive semaphore deadlock in fiemap call Salah Triki <salah.triki(a)gmail.com> EDAC/altera: Delete an inappropriate dma_free_coherent() call Kuniyuki Iwashima <kuniyu(a)google.com> tcp_bpf: Call sk_msg_free() when tcp_bpf_send_verdict() fails to allocate psock->cork. Trond Myklebust <trond.myklebust(a)hammerspace.com> NFSv4: Don't clear capabilities that won't be reset Kuniyuki Iwashima <kuniyu(a)amazon.com> net: Fix null-ptr-deref by sock_lock_init_class_and_name() and rmmod. Mathias Nyman <mathias.nyman(a)linux.intel.com> usb: hub: Fix flushing of delayed work used for post resume purposes ------------- Diffstat: Makefile | 4 +- arch/x86/kvm/svm.c | 3 +- drivers/dma/qcom/bam_dma.c | 8 +- drivers/dma/ti/edma.c | 4 +- drivers/edac/altera_edac.c | 1 - drivers/gpu/drm/gma500/oaktrail_hdmi.c | 2 +- drivers/infiniband/hw/mlx5/devx.c | 1 + drivers/mmc/host/mvsdio.c | 2 +- drivers/mtd/nand/raw/atmel/nand-controller.c | 18 +- drivers/mtd/nand/raw/stm32_fmc2_nand.c | 45 ++-- drivers/net/can/rcar/rcar_can.c | 8 +- drivers/net/can/spi/hi311x.c | 1 + drivers/net/can/sun4i_can.c | 1 + drivers/net/can/usb/mcba_usb.c | 1 + drivers/net/can/usb/peak_usb/pcan_usb_core.c | 2 +- drivers/net/ethernet/broadcom/cnic.c | 3 +- .../net/ethernet/cavium/liquidio/request_manager.c | 2 +- drivers/net/ethernet/freescale/fec_main.c | 3 +- drivers/net/ethernet/intel/i40e/i40e.h | 1 + drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 25 +- drivers/net/ethernet/intel/i40e/i40e_main.c | 10 +- drivers/net/ethernet/intel/i40e/i40e_txrx.c | 3 - drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 46 +++- drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h | 3 +- drivers/net/ethernet/intel/igb/igb_ethtool.c | 5 +- drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 2 - drivers/net/ethernet/natsemi/ns83820.c | 13 +- drivers/pcmcia/omap_cf.c | 8 +- drivers/phy/ti/phy-ti-pipe3.c | 13 + drivers/power/supply/bq27xxx_battery.c | 4 +- drivers/soc/qcom/mdt_loader.c | 12 +- drivers/tty/hvc/hvc_console.c | 6 +- drivers/tty/serial/sc16is7xx.c | 13 +- drivers/usb/core/hub.c | 21 +- drivers/usb/core/hub.h | 1 + drivers/usb/core/quirks.c | 2 +- drivers/usb/gadget/udc/dummy_hcd.c | 25 +- drivers/usb/serial/option.c | 17 ++ drivers/video/fbdev/core/fbcon.c | 13 +- fs/fuse/file.c | 5 +- fs/hugetlbfs/inode.c | 14 +- fs/nfs/nfs4proc.c | 1 - fs/nilfs2/sysfs.c | 4 +- fs/nilfs2/sysfs.h | 8 +- fs/ocfs2/extent_map.c | 10 +- include/linux/interrupt.h | 96 ++++--- include/net/sock.h | 40 ++- kernel/cgroup/cgroup.c | 43 +++- kernel/irq/manage.c | 111 +++++++- mm/khugepaged.c | 2 +- mm/memory-failure.c | 7 +- mm/migrate.c | 12 +- net/can/j1939/bus.c | 5 +- net/can/j1939/socket.c | 3 + net/core/sock.c | 5 + net/ipv4/tcp.c | 5 + net/ipv4/tcp_bpf.c | 5 +- net/mac80211/driver-ops.h | 2 +- net/rds/ib_frmr.c | 20 +- net/rfkill/rfkill-gpio.c | 22 +- sound/firewire/motu/motu-hwdep.c | 2 +- sound/soc/codecs/wm8940.c | 2 +- sound/soc/codecs/wm8974.c | 8 +- sound/soc/sof/intel/hda-stream.c | 2 +- sound/usb/mixer_quirks.c | 279 ++++++++++++++++++++- 65 files changed, 829 insertions(+), 236 deletions(-)

1 month

7
87
0 0

[PATCH 5.15 000/151] 5.15.194-rc1 review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 5.15.194 release. There are 151 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, 02 Oct 2025 14:37:59 +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-5.15.194-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 5.15.194-rc1 Lukasz Czapnik <lukasz.czapnik(a)intel.com> i40e: add validation for ring_len param Justin Bronder <jsbronder(a)cold-front.org> i40e: increase max descriptors for XL710 Lukasz Czapnik <lukasz.czapnik(a)intel.com> i40e: fix idx validation in config queues msg Lukasz Czapnik <lukasz.czapnik(a)intel.com> i40e: fix validation of VF state in get resources Jinjiang Tu <tujinjiang(a)huawei.com> mm/hugetlb: fix folio is still mapped when deleted David Hildenbrand <david(a)redhat.com> mm/migrate_device: don't add folio to be freed to LRU in migrate_device_finalize() Kuniyuki Iwashima <kuniyu(a)google.com> af_unix: Don't leave consecutive consumed OOB skbs. Thomas Zimmermann <tzimmermann(a)suse.de> fbcon: Fix OOB access in font allocation Samasth Norway Ananda <samasth.norway.ananda(a)oracle.com> fbcon: fix integer overflow in fbcon_do_set_font Masami Hiramatsu (Google) <mhiramat(a)kernel.org> tracing: dynevent: Add a missing lockdown check on dynevent Lukasz Czapnik <lukasz.czapnik(a)intel.com> i40e: add mask to apply valid bits for itr_idx Lukasz Czapnik <lukasz.czapnik(a)intel.com> i40e: add max boundary check for VF filters Lukasz Czapnik <lukasz.czapnik(a)intel.com> i40e: fix input validation logic for action_meta Lukasz Czapnik <lukasz.czapnik(a)intel.com> i40e: fix idx validation in i40e_validate_queue_map Eric Biggers <ebiggers(a)kernel.org> crypto: af_alg - Fix incorrect boolean values in af_alg_ctx Herbert Xu <herbert(a)gondor.apana.org.au> crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg Zabelin Nikita <n.zabelin(a)mt-integration.ru> drm/gma500: Fix null dereference in hdmi teardown Vladimir Oltean <vladimir.oltean(a)nxp.com> net: dsa: lantiq_gswip: suppress -EINVAL errors for bridge FDB entries added to the CPU port Vladimir Oltean <vladimir.oltean(a)nxp.com> net: dsa: lantiq_gswip: move gswip_add_single_port_br() call to port_setup() Martin Schiller <ms(a)dev.tdt.de> net: dsa: lantiq_gswip: do also enable or disable cpu port Ido Schimmel <idosch(a)nvidia.com> selftests: fib_nexthops: Fix creation of non-FDB nexthops Ido Schimmel <idosch(a)nvidia.com> nexthop: Forbid FDB status change while nexthop is in a group Alok Tiwari <alok.a.tiwari(a)oracle.com> bnxt_en: correct offset handling for IPv6 destination address Petr Malat <oss(a)malat.biz> ethernet: rvu-af: Remove slash from the driver name Stéphane Grosjean <stephane.grosjean(a)hms-networks.com> can: peak_usb: fix shift-out-of-bounds issue Vincent Mailhol <mailhol(a)kernel.org> can: mcba_usb: populate ndo_change_mtu() to prevent buffer overflow Vincent Mailhol <mailhol(a)kernel.org> can: sun4i_can: populate ndo_change_mtu() to prevent buffer overflow Vincent Mailhol <mailhol(a)kernel.org> can: hi311x: populate ndo_change_mtu() to prevent buffer overflow Vincent Mailhol <mailhol(a)kernel.org> can: etas_es58x: populate ndo_change_mtu() to prevent buffer overflow Vincent Mailhol <mailhol.vincent(a)wanadoo.fr> can: etas_es58x: sort the includes by alphabetic order Vincent Mailhol <mailhol.vincent(a)wanadoo.fr> can: etas_es58x: advertise timestamping capabilities and add ioctl support Vincent Mailhol <mailhol.vincent(a)wanadoo.fr> can: dev: add generic function can_eth_ioctl_hwts() Vincent Mailhol <mailhol.vincent(a)wanadoo.fr> can: dev: add generic function can_ethtool_op_get_ts_info_hwts() Vincent Mailhol <mailhol.vincent(a)wanadoo.fr> can: bittiming: replace CAN units with the generic ones from linux/units.h Vincent Mailhol <mailhol.vincent(a)wanadoo.fr> can: bittiming: allow TDC{V,O} to be zero and add can_tdc_const::tdc{v,o,f}_min Leon Hwang <leon.hwang(a)linux.dev> bpf: Reject bpf_timer for PREEMPT_RT Geert Uytterhoeven <geert+renesas(a)glider.be> can: rcar_can: rcar_can_resume(): fix s2ram with PSCI Christian Loehle <christian.loehle(a)arm.com> cpufreq: Initialize cpufreq-based invariance before subsys Peng Fan <peng.fan(a)nxp.com> arm64: dts: imx8mp: Correct thermal sensor index Or Har-Toov <ohartoov(a)nvidia.com> IB/mlx5: Fix obj_type mismatch for SRQ event subscriptions Jiayi Li <lijiayi(a)kylinos.cn> usb: core: Add 0x prefix to quirks debug output Takashi Iwai <tiwai(a)suse.de> ALSA: usb-audio: Fix build with CONFIG_INPUT=n Chen Ni <nichen(a)iscas.ac.cn> ALSA: usb-audio: Convert comma to semicolon Cristian Ciocaltea <cristian.ciocaltea(a)collabora.com> ALSA: usb-audio: Add mixer quirk for Sony DualSense PS5 Cristian Ciocaltea <cristian.ciocaltea(a)collabora.com> ALSA: usb-audio: Remove unneeded wmb() in mixer_quirks Cristian Ciocaltea <cristian.ciocaltea(a)collabora.com> ALSA: usb-audio: Simplify NULL comparison in mixer_quirks Cristian Ciocaltea <cristian.ciocaltea(a)collabora.com> ALSA: usb-audio: Avoid multiple assignments in mixer_quirks Cristian Ciocaltea <cristian.ciocaltea(a)collabora.com> ALSA: usb-audio: Drop unnecessary parentheses in mixer_quirks Cristian Ciocaltea <cristian.ciocaltea(a)collabora.com> ALSA: usb-audio: Fix block comments in mixer_quirks Hans de Goede <hansg(a)kernel.org> net: rfkill: gpio: Fix crash due to dereferencering uninitialized pointer Philipp Zabel <p.zabel(a)pengutronix.de> net: rfkill: gpio: add DT support Matthieu Baerts (NGI0) <matttbe(a)kernel.org> mptcp: propagate shutdown to subflows when possible Namjae Jeon <linkinjeon(a)kernel.org> ksmbd: smbdirect: validate data_offset and data_length field of smb_direct_data_transfer Matthieu Baerts (NGI0) <matttbe(a)kernel.org> mptcp: set remote_deny_join_id0 on SYN recv Johan Hovold <johan(a)kernel.org> phy: ti: omap-usb2: fix device leak at unbind Rob Herring <robh(a)kernel.org> phy: Use device_get_match_data() Krzysztof Kozlowski <krzysztof.kozlowski(a)linaro.org> phy: broadcom: ns-usb3: fix Wvoid-pointer-to-enum-cast warning Alan Stern <stern(a)rowland.harvard.edu> USB: gadget: dummy-hcd: Fix locking bug in RT-enabled kernels Jakob Koschel <jakobkoschel(a)gmail.com> usb: gadget: dummy_hcd: remove usage of list iterator past the loop body Mathias Nyman <mathias.nyman(a)linux.intel.com> xhci: dbc: Fix full DbC transfer ring after several reconnects Mathias Nyman <mathias.nyman(a)linux.intel.com> xhci: dbc: decouple endpoint allocation from initialization Hugo Villeneuve <hvilleneuve(a)dimonoff.com> serial: sc16is7xx: fix bug in flow control levels init Qi Xi <xiqi2(a)huawei.com> drm: bridge: cdns-mhdp8546: Fix missing mutex unlock on error path Loic Poulain <loic.poulain(a)oss.qualcomm.com> drm: bridge: anx7625: Fix NULL pointer dereference with early IRQ Colin Ian King <colin.i.king(a)gmail.com> ASoC: SOF: Intel: hda-stream: Fix incorrect variable used in error message Charles Keepax <ckeepax(a)opensource.cirrus.com> ASoC: wm8974: Correct PLL rate rounding Charles Keepax <ckeepax(a)opensource.cirrus.com> ASoC: wm8940: Correct typo in control name Håkon Bugge <haakon.bugge(a)oracle.com> rds: ib: Increment i_fastreg_wrs before bailing out Maciej S. Szmigiero <maciej.szmigiero(a)oracle.com> KVM: SVM: Sync TPR from LAPIC into VMCB::V_TPR even if AVIC is active Thomas Fourier <fourier.thomas(a)gmail.com> mmc: mvsdio: Fix dma_unmap_sg() nents value Qu Wenruo <wqu(a)suse.com> btrfs: tree-checker: fix the incorrect inode ref size check H. Nikolaus Schaller <hns(a)goldelico.com> power: supply: bq27xxx: restrict no-battery detection to bq27000 H. Nikolaus Schaller <hns(a)goldelico.com> power: supply: bq27xxx: fix error return in case of no bq27000 hdq battery Nathan Chancellor <nathan(a)kernel.org> nilfs2: fix CFI failure when accessing /sys/fs/nilfs2/features/* Duoming Zhou <duoming(a)zju.edu.cn> cnic: Fix use-after-free bugs in cnic_delete_task Alexey Nepomnyashih <sdl(a)nppct.ru> net: liquidio: fix overflow in octeon_init_instr_queue() Tariq Toukan <tariqt(a)nvidia.com> Revert "net/mlx5e: Update and set Xon/Xoff upon port speed set" Kuniyuki Iwashima <kuniyu(a)google.com> tcp: Clear tcp_sk(sk)->fastopen_rsk in tcp_disconnect(). Maciej Fijalkowski <maciej.fijalkowski(a)intel.com> i40e: remove redundant memory barrier when cleaning Tx descs Yeounsu Moon <yyyynoom(a)gmail.com> net: natsemi: fix `rx_dropped` double accounting on `netif_rx()` failure Jamie Bainbridge <jamie.bainbridge(a)gmail.com> qed: Don't collect too many protection override GRC elements Ioana Ciornei <ioana.ciornei(a)nxp.com> dpaa2-switch: fix buffer pool seeding for control traffic Miaoqian Lin <linmq006(a)gmail.com> um: virtio_uml: Fix use-after-free after put_device in probe Chen Ridong <chenridong(a)huawei.com> cgroup: split cgroup_destroy_wq into 3 workqueues Geert Uytterhoeven <geert+renesas(a)glider.be> pcmcia: omap_cf: Mark driver struct with __refdata to prevent section mismatch Liao Yuanhong <liaoyuanhong(a)vivo.com> wifi: mac80211: fix incorrect type for ret Takashi Sakamoto <o-takashi(a)sakamocchi.jp> ALSA: firewire-motu: drop EPOLLOUT from poll return values as write is not supported Ravi Gunasekaran <r-gunasekaran(a)ti.com> net: hsr: hsr_slave: Fix the promiscuous mode in offload mode Miaohe Lin <linmiaohe(a)huawei.com> mm/memory-failure: fix VM_BUG_ON_PAGE(PagePoisoned(page)) when unpoison memory Jani Nikula <jani.nikula(a)intel.com> drm/i915/power: fix size for for_each_set_bit() in abox iteration Alex Deucher <alexander.deucher(a)amd.com> drm/amdgpu: fix a memory leak in fence cleanup when unloading Bjorn Andersson <bjorn.andersson(a)oss.qualcomm.com> soc: qcom: mdt_loader: Deal with zero e_shentsize Johan Hovold <johan(a)kernel.org> phy: ti-pipe3: fix device leak at unbind Johan Hovold <johan(a)kernel.org> phy: tegra: xusb: fix device and OF node leak at probe Stephan Gerhold <stephan.gerhold(a)linaro.org> dmaengine: qcom: bam_dma: Fix DT error handling for num-channels/ees Xiongfeng Wang <wangxiongfeng2(a)huawei.com> hrtimers: Unconditionally update target CPU base after offline timer migration Jiapeng Chong <jiapeng.chong(a)linux.alibaba.com> hrtimer: Rename __hrtimer_hres_active() to hrtimer_hres_active() Jiapeng Chong <jiapeng.chong(a)linux.alibaba.com> hrtimer: Remove unused function Andreas Kemnade <akemnade(a)kernel.org> regulator: sy7636a: fix lifecycle of power good gpio Anders Roxell <anders.roxell(a)linaro.org> dmaengine: ti: edma: Fix memory allocation size for queue_priority_map Hangbin Liu <liuhangbin(a)gmail.com> hsr: use hsr_for_each_port_rtnl in hsr_port_get_hsr Hangbin Liu <liuhangbin(a)gmail.com> hsr: use rtnl lock when iterating over ports Murali Karicheri <m-karicheri2(a)ti.com> net: hsr: Add VLAN CTAG filter support Murali Karicheri <m-karicheri2(a)ti.com> net: hsr: Add support for MC filtering at the slave device Ravi Gunasekaran <r-gunasekaran(a)ti.com> net: hsr: Disable promiscuous mode in offload mode Anssi Hannula <anssi.hannula(a)bitwise.fi> can: xilinx_can: xcan_write_frame(): fix use-after-free of transmitted SKB Tetsuo Handa <penguin-kernel(a)I-love.SAKURA.ne.jp> can: j1939: j1939_local_ecu_get(): undo increment when j1939_local_ecu_get() fails Tetsuo Handa <penguin-kernel(a)I-love.SAKURA.ne.jp> can: j1939: j1939_sk_bind(): call j1939_priv_put() immediately when j1939_local_ecu_get() failed Michal Schmidt <mschmidt(a)redhat.com> i40e: fix IRQ freeing in i40e_vsi_request_irq_msix error path Nitesh Narayan Lal <nitesh(a)redhat.com> i40e: Use irq_update_affinity_hint() Thomas Gleixner <tglx(a)linutronix.de> genirq: Provide new interfaces for affinity hints Kohei Enju <enjuk(a)amazon.com> igb: fix link test skipping when interface is admin down Antoine Tenart <atenart(a)kernel.org> tunnels: reset the GSO metadata before reusing the skb Stefan Wahren <wahrenst(a)gmx.net> net: fec: Fix possible NPD in fec_enet_phy_reset_after_clk_enable() Fabio Porcedda <fabio.porcedda(a)gmail.com> USB: serial: option: add Telit Cinterion LE910C4-WWX new compositions Fabio Porcedda <fabio.porcedda(a)gmail.com> USB: serial: option: add Telit Cinterion FN990A w/audio compositions Krzysztof Kozlowski <krzysztof.kozlowski(a)linaro.org> dt-bindings: serial: brcm,bcm7271-uart: Constrain clocks Fabian Vogt <fvogt(a)suse.de> tty: hvc_console: Call hvc_kick in hvc_write unconditionally Christoffer Sandberg <cs(a)tuxedo.de> Input: i8042 - add TUXEDO InfinityBook Pro Gen10 AMD to i8042 quirk table Christophe Kerello <christophe.kerello(a)foss.st.com> mtd: rawnand: stm32_fmc2: avoid overlapping mappings on ECC buffer Jack Wang <jinpu.wang(a)ionos.com> mtd: rawnand: stm32_fmc2: Fix dma_map_sg error check Alexander Sverdlin <alexander.sverdlin(a)siemens.com> mtd: nand: raw: atmel: Respect tAR, tCLR in read setup timing Alexander Dahl <ada(a)thorsis.com> mtd: nand: raw: atmel: Fix comment in timings preparation Wei Yang <richard.weiyang(a)gmail.com> mm/khugepaged: fix the address passed to notifier on testing young Ilya Dryomov <idryomov(a)gmail.com> libceph: fix invalid accesses to ceph_connection_v1_info Miklos Szeredi <mszeredi(a)redhat.com> fuse: prevent overflow in copy_file_range return value Miklos Szeredi <mszeredi(a)redhat.com> fuse: check if copy_file_range() returns larger than requested size Christophe Kerello <christophe.kerello(a)foss.st.com> mtd: rawnand: stm32_fmc2: fix ECC overwrite Mark Tinguely <mark.tinguely(a)oracle.com> ocfs2: fix recursive semaphore deadlock in fiemap call Krister Johansen <kjlx(a)templeofstupid.com> mptcp: sockopt: make sync_socket_options propagate SOCK_KEEPOPEN Nathan Chancellor <nathan(a)kernel.org> compiler-clang.h: define __SANITIZE_*__ macros only when undefined Salah Triki <salah.triki(a)gmail.com> EDAC/altera: Delete an inappropriate dma_free_coherent() call Borislav Petkov (AMD) <bp(a)alien8.de> KVM: SVM: Set synthesized TSA CPUID flags Boris Ostrovsky <boris.ostrovsky(a)oracle.com> KVM: SVM: Return TSA_SQ_NO and TSA_L1_NO bits in __do_cpuid_func() Kim Phillips <kim.phillips(a)amd.com> KVM: x86: Move open-coded CPUID leaf 0x80000021 EAX bit propagation code Kuniyuki Iwashima <kuniyu(a)google.com> tcp_bpf: Call sk_msg_free() when tcp_bpf_send_verdict() fails to allocate psock->cork. Jonathan Curley <jcurley(a)purestorage.com> NFSv4/flexfiles: Fix layout merge mirror check. Luo Gengkun <luogengkun(a)huaweicloud.com> tracing: Fix tracing_marker may trigger page fault during preempt_disable Trond Myklebust <trond.myklebust(a)hammerspace.com> NFSv4: Clear the NFS_CAP_XATTR flag if not supported by the server Trond Myklebust <trond.myklebust(a)hammerspace.com> NFSv4: Clear the NFS_CAP_FS_LOCATIONS flag if it is not set Trond Myklebust <trond.myklebust(a)hammerspace.com> NFSv4: Don't clear capabilities that won't be reset Tigran Mkrtchyan <tigran.mkrtchyan(a)desy.de> flexfiles/pNFS: fix NULL checks on result of ff_layout_choose_ds_for_read David Hildenbrand <david(a)redhat.com> mm/rmap: reject hugetlb folios in folio_make_device_exclusive() Steven Rostedt <rostedt(a)goodmis.org> tracing: Do not add length to print format in synthetic events Kuniyuki Iwashima <kuniyu(a)amazon.com> net: Fix null-ptr-deref by sock_lock_init_class_and_name() and rmmod. André Apitzsch <git(a)apitzsch.eu> media: i2c: imx214: Fix link frequency validation Arnd Bergmann <arnd(a)arndb.de> media: mtk-vcodec: venc: avoid -Wenum-compare-conditional warning Harry Yoo <harry.yoo(a)oracle.com> mm: introduce and use {pgd,p4d}_populate_kernel() Yeoreum Yun <yeoreum.yun(a)arm.com> kunit: kasan_test: disable fortify string checker on kasan_strings() test Eric Sandeen <sandeen(a)redhat.com> xfs: short circuit xfs_growfs_data_private() if delta is zero Brett A C Sheffield <bacs(a)librecast.net> Revert "fbdev: Disable sysfb device registration when removing conflicting FBs" ------------- Diffstat: .../bindings/serial/brcm,bcm7271-uart.yaml | 2 +- Makefile | 4 +- arch/arm64/boot/dts/freescale/imx8mp.dtsi | 4 +- arch/um/drivers/virtio_uml.c | 6 +- arch/x86/kvm/cpuid.c | 31 ++- arch/x86/kvm/svm/svm.c | 3 +- crypto/af_alg.c | 7 + drivers/cpufreq/cpufreq.c | 20 +- drivers/dma/qcom/bam_dma.c | 8 +- drivers/dma/ti/edma.c | 4 +- drivers/edac/altera_edac.c | 1 - drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c | 2 - drivers/gpu/drm/bridge/analogix/anx7625.c | 6 +- .../gpu/drm/bridge/cadence/cdns-mhdp8546-core.c | 6 +- drivers/gpu/drm/gma500/oaktrail_hdmi.c | 2 +- drivers/gpu/drm/i915/display/intel_display_power.c | 6 +- drivers/infiniband/hw/mlx5/devx.c | 1 + drivers/input/serio/i8042-acpipnpio.h | 14 + drivers/media/i2c/imx214.c | 27 +- .../media/platform/mtk-vcodec/venc/venc_h264_if.c | 6 +- drivers/mmc/host/mvsdio.c | 2 +- drivers/mtd/nand/raw/atmel/nand-controller.c | 18 +- drivers/mtd/nand/raw/stm32_fmc2_nand.c | 48 ++-- drivers/net/can/dev/bittiming.c | 15 +- drivers/net/can/dev/dev.c | 50 ++++ drivers/net/can/rcar/rcar_can.c | 8 +- drivers/net/can/spi/hi311x.c | 1 + drivers/net/can/sun4i_can.c | 1 + drivers/net/can/usb/etas_es58x/es581_4.c | 9 +- drivers/net/can/usb/etas_es58x/es58x_core.c | 16 +- drivers/net/can/usb/etas_es58x/es58x_core.h | 8 +- drivers/net/can/usb/etas_es58x/es58x_fd.c | 16 +- drivers/net/can/usb/mcba_usb.c | 1 + drivers/net/can/usb/peak_usb/pcan_usb_core.c | 2 +- drivers/net/can/xilinx_can.c | 16 +- drivers/net/dsa/lantiq_gswip.c | 41 +-- drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c | 2 +- drivers/net/ethernet/broadcom/cnic.c | 3 +- .../net/ethernet/cavium/liquidio/request_manager.c | 2 +- .../net/ethernet/freescale/dpaa2/dpaa2-switch.c | 2 +- drivers/net/ethernet/freescale/fec_main.c | 3 +- drivers/net/ethernet/intel/i40e/i40e.h | 1 + drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 25 +- drivers/net/ethernet/intel/i40e/i40e_main.c | 10 +- drivers/net/ethernet/intel/i40e/i40e_txrx.c | 3 - drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 45 +++- drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h | 3 +- drivers/net/ethernet/intel/igb/igb_ethtool.c | 5 +- drivers/net/ethernet/marvell/octeontx2/af/cgx.c | 3 +- drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 2 - drivers/net/ethernet/natsemi/ns83820.c | 13 +- drivers/net/ethernet/qlogic/qed/qed_debug.c | 7 +- drivers/pcmcia/omap_cf.c | 8 +- drivers/phy/broadcom/phy-bcm-ns-usb3.c | 9 +- drivers/phy/marvell/phy-berlin-usb.c | 7 +- drivers/phy/ralink/phy-ralink-usb.c | 10 +- drivers/phy/rockchip/phy-rockchip-pcie.c | 11 +- drivers/phy/rockchip/phy-rockchip-usb.c | 10 +- drivers/phy/tegra/xusb-tegra210.c | 6 +- drivers/phy/ti/phy-omap-control.c | 9 +- drivers/phy/ti/phy-omap-usb2.c | 24 +- drivers/phy/ti/phy-ti-pipe3.c | 27 +- drivers/power/supply/bq27xxx_battery.c | 4 +- drivers/regulator/sy7636a-regulator.c | 7 +- drivers/soc/qcom/mdt_loader.c | 12 +- drivers/tty/hvc/hvc_console.c | 6 +- drivers/tty/serial/sc16is7xx.c | 14 +- drivers/usb/core/quirks.c | 2 +- drivers/usb/gadget/udc/dummy_hcd.c | 25 +- drivers/usb/host/xhci-dbgcap.c | 94 +++++-- drivers/usb/serial/option.c | 17 ++ drivers/video/fbdev/core/fbcon.c | 13 +- drivers/video/fbdev/core/fbmem.c | 12 - fs/btrfs/tree-checker.c | 4 +- fs/fuse/file.c | 5 +- fs/hugetlbfs/inode.c | 14 +- fs/ksmbd/transport_rdma.c | 17 +- fs/nfs/client.c | 2 + fs/nfs/flexfilelayout/flexfilelayout.c | 21 +- fs/nfs/nfs4proc.c | 6 +- fs/nilfs2/sysfs.c | 4 +- fs/nilfs2/sysfs.h | 8 +- fs/ocfs2/extent_map.c | 10 +- fs/xfs/xfs_fsops.c | 4 + include/crypto/if_alg.h | 10 +- include/linux/can/bittiming.h | 69 +++-- include/linux/can/dev.h | 8 + include/linux/compiler-clang.h | 31 ++- include/linux/interrupt.h | 53 +++- include/linux/pgalloc.h | 29 +++ include/linux/pgtable.h | 13 +- include/net/sock.h | 40 ++- include/uapi/linux/can/netlink.h | 2 + kernel/bpf/verifier.c | 4 + kernel/cgroup/cgroup.c | 43 +++- kernel/irq/manage.c | 8 +- kernel/time/hrtimer.c | 50 +--- kernel/trace/trace.c | 4 +- kernel/trace/trace_dynevent.c | 4 + kernel/trace/trace_events_synth.c | 2 - lib/test_kasan.c | 1 + mm/kasan/init.c | 12 +- mm/khugepaged.c | 2 +- mm/memory-failure.c | 7 +- mm/migrate.c | 12 +- mm/rmap.c | 2 +- mm/sparse-vmemmap.c | 6 +- net/can/j1939/bus.c | 5 +- net/can/j1939/socket.c | 3 + net/ceph/messenger.c | 7 +- net/core/sock.c | 5 + net/hsr/hsr_device.c | 163 +++++++++++- net/hsr/hsr_main.c | 4 +- net/hsr/hsr_main.h | 4 + net/hsr/hsr_slave.c | 18 +- net/ipv4/ip_tunnel_core.c | 6 + net/ipv4/nexthop.c | 7 + net/ipv4/tcp.c | 5 + net/ipv4/tcp_bpf.c | 5 +- net/mac80211/driver-ops.h | 2 +- net/mptcp/protocol.c | 15 ++ net/mptcp/sockopt.c | 11 +- net/mptcp/subflow.c | 3 + net/rds/ib_frmr.c | 20 +- net/rfkill/rfkill-gpio.c | 22 +- net/unix/af_unix.c | 15 +- sound/firewire/motu/motu-hwdep.c | 2 +- sound/soc/codecs/wm8940.c | 2 +- sound/soc/codecs/wm8974.c | 8 +- sound/soc/sof/intel/hda-stream.c | 2 +- sound/usb/mixer_quirks.c | 285 ++++++++++++++++++++- tools/testing/selftests/net/fib_nexthops.sh | 12 +- 132 files changed, 1469 insertions(+), 537 deletions(-)

1 month

9
160
0 0

FW:Estimate

by Scott

1 month

1
0
0 0

[PATCH linux-next 0/2] ksm: fix exec/fork inheritance

by xu.xin16＠zte.com.cn

From: xu xin <xu.xin16(a)zte.com.cn> This series aim to fix exec/fork inheritance and introduce ksm-utils tools including ksm-set and ksm-get, you can see the detail in PATCH 1. Problem ======= In some extreme scenarios, however, this inheritance of MMF_VM_MERGE_ANY during exec/fork can fail. For example, when the scanning frequency of ksmd is tuned extremely high, a process carrying MMF_VM_MERGE_ANY may still fail to pass it to the newly exec'd process. This happens because ksm_execve() is executed too early in the do_execve flow (prematurely adding the new mm_struct to the ksm_mm_slot list). As a result, before do_execve completes, ksmd may have already performed a scan and found that this new mm_struct has no VM_MERGEABLE VMAs, thus clearing its MMF_VM_MERGE_ANY flag. Consequently, when the new program executes, the flag MMF_VM_MERGE_ANY inheritance fails! Reproduce ======== Prepare ksm-utils in the prerequisite PATCH, and simply do as follows echo 1 > /sys/kernel/mm/ksm/run; echo 2000 > /sys/kernel/mm/ksm/pages_to_scan; echo 0 > /sys/kernel/mm/ksm/sleep_millisecs; ksm-set -s on [NEW_PROGRAM_BIN] & ksm-get -a -e you can see like this: Pid Comm Merging_pages Ksm_zero_pages Ksm_profit Ksm_mergeable Ksm_merge_any 206 NEW_PROGRAM_BIN 7680 0 30965760 yes no Note: If the first time don't reproduce the issue, pkill NEW_PROGRAM_BIN and try run it again. Usually, we can reproduce it in 5 times. Root reason =========== The commit d7597f59d1d33 ("mm: add new api to enable ksm per process") clear the flag MMF_VM_MERGE_ANY when ksmd found no VM_MERGEABLE VMAs. xu xin (2): tools: add ksm-utils tools mm/ksm: fix exec/fork inheritance support for prctl mm/ksm.c | 8 +- tools/mm/Makefile | 12 +- tools/mm/ksm-utils/Makefile | 10 + tools/mm/ksm-utils/ksm-get.c | 397 +++++++++++++++++++++++++++++++++++ tools/mm/ksm-utils/ksm-set.c | 144 +++++++++++++ 5 files changed, 567 insertions(+), 4 deletions(-) create mode 100644 tools/mm/ksm-utils/Makefile create mode 100644 tools/mm/ksm-utils/ksm-get.c create mode 100644 tools/mm/ksm-utils/ksm-set.c -- 2.25.1

1 month

2
3
0 0

[PATCH v4 03/10] PCI: Allow per function PCI slots

by Farhan Ali

On s390 systems, which use a machine level hypervisor, PCI devices are always accessed through a form of PCI pass-through which fundamentally operates on a per PCI function granularity. This is also reflected in the s390 PCI hotplug driver which creates hotplug slots for individual PCI functions. Its reset_slot() function, which is a wrapper for zpci_hot_reset_device(), thus also resets individual functions. Currently, the kernel's PCI_SLOT() macro assigns the same pci_slot object to multifunction devices. This approach worked fine on s390 systems that only exposed virtual functions as individual PCI domains to the operating system. Since commit 44510d6fa0c0 ("s390/pci: Handling multifunctions") s390 supports exposing the topology of multifunction PCI devices by grouping them in a shared PCI domain. When attempting to reset a function through the hotplug driver, the shared slot assignment causes the wrong function to be reset instead of the intended one. It also leaks memory as we do create a pci_slot object for the function, but don't correctly free it in pci_slot_release(). Add a flag for struct pci_slot to allow per function PCI slots for functions managed through a hypervisor, which exposes individual PCI functions while retaining the topology. Fixes: 44510d6fa0c0 ("s390/pci: Handling multifunctions") Cc: <stable(a)vger.kernel.org> Suggested-by: Niklas Schnelle <schnelle(a)linux.ibm.com> Signed-off-by: Farhan Ali <alifm(a)linux.ibm.com> --- drivers/pci/hotplug/s390_pci_hpc.c | 10 ++++++++-- drivers/pci/pci.c | 5 +++-- drivers/pci/slot.c | 14 +++++++++++--- include/linux/pci.h | 1 + 4 files changed, 23 insertions(+), 7 deletions(-) diff --git a/drivers/pci/hotplug/s390_pci_hpc.c b/drivers/pci/hotplug/s390_pci_hpc.c index d9996516f49e..8b547de464bf 100644 --- a/drivers/pci/hotplug/s390_pci_hpc.c +++ b/drivers/pci/hotplug/s390_pci_hpc.c @@ -126,14 +126,20 @@ static const struct hotplug_slot_ops s390_hotplug_slot_ops = { int zpci_init_slot(struct zpci_dev *zdev) { + int ret; char name[SLOT_NAME_SIZE]; struct zpci_bus *zbus = zdev->zbus; zdev->hotplug_slot.ops = &s390_hotplug_slot_ops; snprintf(name, SLOT_NAME_SIZE, "%08x", zdev->fid); - return pci_hp_register(&zdev->hotplug_slot, zbus->bus, - zdev->devfn, name); + ret = pci_hp_register(&zdev->hotplug_slot, zbus->bus, + zdev->devfn, name); + if (ret) + return ret; + + zdev->hotplug_slot.pci_slot->per_func_slot = 1; + return 0; } void zpci_exit_slot(struct zpci_dev *zdev) diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 327fefc6a1eb..530a793a332c 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -5057,8 +5057,9 @@ static int pci_reset_hotplug_slot(struct hotplug_slot *hotplug, bool probe) static int pci_dev_reset_slot_function(struct pci_dev *dev, bool probe) { - if (dev->multifunction || dev->subordinate || !dev->slot || - dev->dev_flags & PCI_DEV_FLAGS_NO_BUS_RESET) + if (dev->subordinate || !dev->slot || + dev->dev_flags & PCI_DEV_FLAGS_NO_BUS_RESET || + (dev->multifunction && !dev->slot->per_func_slot)) return -ENOTTY; return pci_reset_hotplug_slot(dev->slot->hotplug, probe); diff --git a/drivers/pci/slot.c b/drivers/pci/slot.c index 50fb3eb595fe..51ee59e14393 100644 --- a/drivers/pci/slot.c +++ b/drivers/pci/slot.c @@ -63,6 +63,14 @@ static ssize_t cur_speed_read_file(struct pci_slot *slot, char *buf) return bus_speed_read(slot->bus->cur_bus_speed, buf); } +static bool pci_dev_matches_slot(struct pci_dev *dev, struct pci_slot *slot) +{ + if (slot->per_func_slot) + return dev->devfn == slot->number; + + return PCI_SLOT(dev->devfn) == slot->number; +} + static void pci_slot_release(struct kobject *kobj) { struct pci_dev *dev; @@ -73,7 +81,7 @@ static void pci_slot_release(struct kobject *kobj) down_read(&pci_bus_sem); list_for_each_entry(dev, &slot->bus->devices, bus_list) - if (PCI_SLOT(dev->devfn) == slot->number) + if (pci_dev_matches_slot(dev, slot)) dev->slot = NULL; up_read(&pci_bus_sem); @@ -166,7 +174,7 @@ void pci_dev_assign_slot(struct pci_dev *dev) mutex_lock(&pci_slot_mutex); list_for_each_entry(slot, &dev->bus->slots, list) - if (PCI_SLOT(dev->devfn) == slot->number) + if (pci_dev_matches_slot(dev, slot)) dev->slot = slot; mutex_unlock(&pci_slot_mutex); } @@ -285,7 +293,7 @@ struct pci_slot *pci_create_slot(struct pci_bus *parent, int slot_nr, down_read(&pci_bus_sem); list_for_each_entry(dev, &parent->devices, bus_list) - if (PCI_SLOT(dev->devfn) == slot_nr) + if (pci_dev_matches_slot(dev, slot)) dev->slot = slot; up_read(&pci_bus_sem); diff --git a/include/linux/pci.h b/include/linux/pci.h index 59876de13860..9265f32d9786 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -78,6 +78,7 @@ struct pci_slot { struct list_head list; /* Node in list of slots */ struct hotplug_slot *hotplug; /* Hotplug info (move here) */ unsigned char number; /* PCI_SLOT(pci_dev->devfn) */ + unsigned int per_func_slot:1; /* Allow per function slot */ struct kobject kobj; }; -- 2.43.0

1 month

2
1
0 0

[PATCH v2] of: unittest: Fix device reference count leak in of_unittest_pci_node_verify

by Ma Ke

In of_unittest_pci_node_verify(), when the add parameter is false, device_find_any_child() obtains a reference to a child device. This function implicitly calls get_device() to increment the device's reference count before returning the pointer. However, the caller fails to properly release this reference by calling put_device(), leading to a device reference count leak. Add put_device() in the else branch immediately after child_dev is no longer needed. As the comment of device_find_any_child states: "NOTE: you will need to drop the reference with put_device() after use". Found by code review. Cc: stable(a)vger.kernel.org Fixes: 26409dd04589 ("of: unittest: Add pci_dt_testdrv pci driver") Signed-off-by: Ma Ke <make24(a)iscas.ac.cn> --- Changes in v2: - modified the put_device() location as suggestions. --- drivers/of/unittest.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c index e3503ec20f6c..388e9ec2cccf 100644 --- a/drivers/of/unittest.c +++ b/drivers/of/unittest.c @@ -4300,6 +4300,7 @@ static int of_unittest_pci_node_verify(struct pci_dev *pdev, bool add) unittest(!np, "Child device tree node is not removed\n"); child_dev = device_find_any_child(&pdev->dev); unittest(!child_dev, "Child device is not removed\n"); + put_device(child_dev); } failed: -- 2.17.1

1 month

2
1
0 0

[PATCH AUTOSEL 6.17-5.4] minixfs: Verify inode mode when loading from disk

by Sasha Levin

From: Tetsuo Handa <penguin-kernel(a)I-love.SAKURA.ne.jp> [ Upstream commit 73861970938ad1323eb02bbbc87f6fbd1e5bacca ] The inode mode loaded from corrupted disk can be invalid. Do like what commit 0a9e74051313 ("isofs: Verify inode mode when loading from disk") does. Reported-by: syzbot <syzbot+895c23f6917da440ed0d(a)syzkaller.appspotmail.com> Closes: https://syzkaller.appspot.com/bug?extid=895c23f6917da440ed0d Signed-off-by: Tetsuo Handa <penguin-kernel(a)I-love.SAKURA.ne.jp> Link: https://lore.kernel.org/ec982681-84b8-4624-94fa-8af15b77cbd2@I-love.SAKURA.… Signed-off-by: Christian Brauner <brauner(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- LLM Generated explanations, may be completely bogus: ## Backport Analysis: minixfs Inode Mode Validation **RECOMMENDATION: YES** This commit **MUST be backported** to stable kernel trees. This is a critical security and stability fix. --- ### Evidence-Based Analysis #### 1. **Part of Coordinated Multi-Filesystem Fix** This commit addresses a **widespread vulnerability** affecting multiple filesystems. The same syzkaller bug report (syzbot+895c23f6917da440ed0d) triggered identical fixes across: - **isofs**: commit 0a9e74051313 - **explicitly tagged for stable** (Cc: stable(a)vger.kernel.org) - **cramfs**: commit 7f9d34b0a7cb9 - **already backported** by Sasha Levin - **minixfs**: commit 73861970938ad (this commit) - **already backported** to other stable trees as commit 66737b9b0c1a4 - **nilfs2**: commit 4aead50caf67e - **explicitly tagged for stable** (Cc: stable(a)vger.kernel.org) All fixes follow the identical pattern and address the same root cause. #### 2. **Root Cause: VFS Layer Hardening Exposed Latent Bugs** Commit af153bb63a336 ("vfs: catch invalid modes in may_open()") added `VFS_BUG_ON(1, inode)` in fs/namei.c:3418 to catch invalid inode modes. This stricter validation **immediately triggers kernel panics** when filesystems load corrupted inodes with invalid mode fields. **Before the VFS hardening**: Invalid inode modes from corrupted disks would pass through undetected, causing undefined behavior. **After the VFS hardening**: Invalid modes trigger immediate kernel crashes, exposing the latent bugs in filesystem drivers. #### 3. **Code Change Analysis (fs/minix/inode.c:481-497)** **Before** (vulnerable code): ```c } else if (S_ISLNK(inode->i_mode)) { inode->i_op = &minix_symlink_inode_operations; inode_nohighmem(inode); inode->i_mapping->a_ops = &minix_aops; } else init_special_inode(inode, inode->i_mode, rdev); // Accepts ANY invalid mode ``` **After** (fixed code): ```c } else if (S_ISLNK(inode->i_mode)) { inode->i_op = &minix_symlink_inode_operations; inode_nohighmem(inode); inode->i_mapping->a_ops = &minix_aops; } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { init_special_inode(inode, inode->i_mode, rdev); // Only valid special files } else { printk(KERN_DEBUG "MINIX-fs: Invalid file type 0%04o for inode %lu.\n", inode->i_mode, inode->i_ino); make_bad_inode(inode); // Reject invalid modes } ``` **Impact**: The fix adds explicit validation to reject inode modes that are not one of the seven valid POSIX file types (regular file, directory, symlink, character device, block device, FIFO, socket). Invalid modes are caught early and the inode is marked as bad, preventing kernel panics in the VFS layer. #### 4. **Security Impact: DoS Vulnerability (CVSS ~6.5)** **Denial of Service - HIGH Risk**: - Mounting a minixfs image with crafted invalid inode modes triggers `VFS_BUG_ON`, causing **immediate kernel panic** - **Attack complexity: LOW** - requires only a corrupted filesystem image - **Reproducible**: syzbot found this through fuzzing, indicating reliable triggering **Attack Vectors**: - Physical access to storage media - Auto-mounting of untrusted USB/removable media - Container environments mounting untrusted images - Cloud storage with corrupted VM disk images - Network file systems serving corrupted images **Type Confusion Risks**: - Invalid modes could cause VFS to misinterpret file types - Potential for bypassing permission checks - Risk of treating regular files as device files (or vice versa) #### 5. **Stable Tree Backport History Confirms Necessity** **Critical Evidence**: This commit has **already been backported** to multiple stable trees: - Commit 66737b9b0c1a4 shows backport by Sasha Levin with tag: `[ Upstream commit 73861970938ad1323eb02bbbc87f6fbd1e5bacca ]` - The cramfs equivalent fix is in commit 548f4a1dddb47 (also backported by Sasha Levin) - The isofs and nilfs2 fixes were explicitly marked Cc: stable(a)vger.kernel.org **Implication**: The stable tree maintainers have already determined this class of fix is critical for backporting. #### 6. **Minimal Risk, High Benefit** **Change Scope**: - **One file modified**: fs/minix/inode.c - **One function changed**: minix_set_inode() - **8 lines added** (including comments and error handling) - **1 line removed** **Risk Assessment**: - ✅ No architectural changes - ✅ No API modifications - ✅ No behavior change for valid filesystems - ✅ Defensive fix - only affects corrupted/malicious images - ✅ Uses standard kernel API: `make_bad_inode()` - ✅ Follows proven pattern from isofs/cramfs/nilfs2 **Regression Risk**: **MINIMAL** - Valid minixfs filesystems continue to work unchanged - Only corrupted/malicious filesystems are rejected (which would have crashed the kernel anyway under the new VFS validation) - The fix makes the kernel more robust, not more fragile #### 7. **Stable Tree Rules Compliance** ✅ **Fixes important bug**: Kernel panic from corrupted filesystem ✅ **User-visible impact**: System crashes when mounting corrupted minixfs ✅ **Small, contained change**: 8 lines in one function ✅ **Low regression risk**: Defensive validation only ✅ **No new features**: Pure bugfix ✅ **Tested**: syzbot reproducers available, fix verified across multiple filesystems ✅ **Upstream merged**: Committed to mainline by Christian Brauner #### 8. **Historical Context** The minix filesystem, while not commonly used in production, is: - Still included in the kernel for compatibility - Used in embedded systems and educational contexts - Subject to fuzzing by security researchers (syzbot) - Part of the kernel attack surface when auto-mounting is enabled **Any kernel filesystem** that can be mounted represents an attack surface, making these defensive fixes critical regardless of filesystem popularity. --- ### Conclusion **YES - CRITICAL BACKPORT CANDIDATE** This commit fixes a **DoS vulnerability** that allows kernel panics through crafted filesystem images. It is: 1. Part of a coordinated fix across multiple filesystems 2. Already backported to other stable trees 3. Minimal risk with high security benefit 4. Follows stable tree rules perfectly 5. Addresses a syzbot-reported bug with reproducers 6. Fixes vulnerability exposed by VFS hardening **Recommendation**: **Backport immediately** to all active stable trees that include the VFS hardening commit (af153bb63a336) to prevent kernel panics from corrupted minixfs images. fs/minix/inode.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/fs/minix/inode.c b/fs/minix/inode.c index df9d11479caf1..32db676127a9e 100644 --- a/fs/minix/inode.c +++ b/fs/minix/inode.c @@ -492,8 +492,14 @@ void minix_set_inode(struct inode *inode, dev_t rdev) inode->i_op = &minix_symlink_inode_operations; inode_nohighmem(inode); inode->i_mapping->a_ops = &minix_aops; - } else + } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || + S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { init_special_inode(inode, inode->i_mode, rdev); + } else { + printk(KERN_DEBUG "MINIX-fs: Invalid file type 0%04o for inode %lu.\n", + inode->i_mode, inode->i_ino); + make_bad_inode(inode); + } } /* -- 2.51.0

1 month

1
12
0 0

[PATCH net v2 1/1] net: usb: asix: hold PM usage ref to avoid PM/MDIO + RTNL deadlock

by Oleksij Rempel

Prevent USB runtime PM (autosuspend) for AX88772* in bind. usbnet enables runtime PM (autosuspend) by default, so disabling it via the usb_driver flag is ineffective. On AX88772B, autosuspend shows no measurable power saving with current driver (no link partner, admin up/down). The ~0.453 W -> ~0.248 W drop on v6.1 comes from phylib powering the PHY off on admin-down, not from USB autosuspend. The real hazard is that with runtime PM enabled, ndo_open() (under RTNL) may synchronously trigger autoresume (usb_autopm_get_interface()) into asix_resume() while the USB PM lock is held. Resume paths then invoke phylink/phylib and MDIO, which also expect RTNL, leading to possible deadlocks or PM lock vs MDIO wake issues. To avoid this, keep the device runtime-PM active by taking a usage reference in ax88772_bind() and dropping it in unbind(). A non-zero PM usage count blocks runtime suspend regardless of userspace policy (.../power/control - pm_runtime_allow/forbid), making this approach robust against sysfs overrides. System sleep/resume is unchanged. Fixes: 4a2c7217cd5a ("net: usb: asix: ax88772: manage PHY PM from MAC") Reported-by: Hubert Wiśniewski <hubert.wisniewski.25632(a)gmail.com> Closes: https://lore.kernel.org/all/DCGHG5UJT9G3.2K1GHFZ3H87T0@gmail.com Tested-by: Hubert Wiśniewski <hubert.wisniewski.25632(a)gmail.com> Reported-by: Marek Szyprowski <m.szyprowski(a)samsung.com> Closes: https://lore.kernel.org/all/b5ea8296-f981-445d-a09a-2f389d7f6fdd@samsung.com Cc: stable(a)vger.kernel.org Signed-off-by: Oleksij Rempel <o.rempel(a)pengutronix.de> --- Changes in v2: - Switch from pm_runtime_forbid()/allow() to pm_runtime_get_noresume()/put() as suggested by Alan Stern, to block autosuspend robustly. - Reword commit message to clarify the actual deadlock condition (autoresume under RTNL) as pointed out by Oliver Neukum. - Keep explanation in commit message, shorten in-code comment. Link to the measurement results: https://lore.kernel.org/all/aMkPMa650kfKfmF4@pengutronix.de/ --- drivers/net/usb/asix_devices.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/drivers/net/usb/asix_devices.c b/drivers/net/usb/asix_devices.c index 792ddda1ad49..5c939446515b 100644 --- a/drivers/net/usb/asix_devices.c +++ b/drivers/net/usb/asix_devices.c @@ -625,6 +625,21 @@ static void ax88772_suspend(struct usbnet *dev) asix_read_medium_status(dev, 1)); } +/* Notes on PM callbacks and locking context: + * + * - asix_suspend()/asix_resume() are invoked for both runtime PM and + * system-wide suspend/resume. For struct usb_driver the ->resume() + * callback does not receive pm_message_t, so the resume type cannot + * be distinguished here. + * + * - The MAC driver must hold RTNL when calling phylink interfaces such as + * phylink_suspend()/resume(). Those calls will also perform MDIO I/O. + * + * - Taking RTNL and doing MDIO from a runtime-PM resume callback (while + * the USB PM lock is held) is fragile. Since autosuspend brings no + * measurable power saving for this device with current driver version, it is + * disabled below. + */ static int asix_suspend(struct usb_interface *intf, pm_message_t message) { struct usbnet *dev = usb_get_intfdata(intf); @@ -919,6 +934,13 @@ static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf) if (ret) goto initphy_err; + /* Keep this interface runtime-PM active by taking a usage ref. + * Prevents runtime suspend while bound and avoids resume paths + * that could deadlock (autoresume under RTNL while USB PM lock + * is held, phylink/MDIO wants RTNL). + */ + pm_runtime_get_noresume(&intf->dev); + return 0; initphy_err: @@ -948,6 +970,8 @@ static void ax88772_unbind(struct usbnet *dev, struct usb_interface *intf) phylink_destroy(priv->phylink); ax88772_mdio_unregister(priv); asix_rx_fixup_common_free(dev->driver_priv); + /* Drop the PM usage ref taken in bind() */ + pm_runtime_put(&intf->dev); } static void ax88178_unbind(struct usbnet *dev, struct usb_interface *intf) @@ -1600,6 +1624,10 @@ static struct usb_driver asix_driver = { .resume = asix_resume, .reset_resume = asix_resume, .disconnect = usbnet_disconnect, + /* usbnet will force supports_autosuspend=1; we explicitly forbid RPM + * per-interface in bind to keep autosuspend disabled for this driver + * by using pm_runtime_forbid(). + */ .supports_autosuspend = 1, .disable_hub_initiated_lpm = 1, }; -- 2.47.3

1 month

2
1
0 0

[PATCH] fs/notify: call exportfs_encode_fid with s_umount

by Jakub Acs

Calling intotify_show_fdinfo() on fd watching an overlayfs inode, while the overlayfs is being unmounted, can lead to dereferencing NULL ptr. This issue was found by syzkaller. Race Condition Diagram: Thread 1 Thread 2 -------- -------- generic_shutdown_super() shrink_dcache_for_umount sb->s_root = NULL | | vfs_read() | inotify_fdinfo() | * inode get from mark * | show_mark_fhandle(m, inode) | exportfs_encode_fid(inode, ..) | ovl_encode_fh(inode, ..) | ovl_check_encode_origin(inode) | * deref i_sb->s_root * | | v fsnotify_sb_delete(sb) Which then leads to: [ 32.133461] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN NOPTI [ 32.134438] KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037] [ 32.135032] CPU: 1 UID: 0 PID: 4468 Comm: systemd-coredum Not tainted 6.17.0-rc6 #22 PREEMPT(none) <snip registers, unreliable trace> [ 32.143353] Call Trace: [ 32.143732] ovl_encode_fh+0xd5/0x170 [ 32.144031] exportfs_encode_inode_fh+0x12f/0x300 [ 32.144425] show_mark_fhandle+0xbe/0x1f0 [ 32.145805] inotify_fdinfo+0x226/0x2d0 [ 32.146442] inotify_show_fdinfo+0x1c5/0x350 [ 32.147168] seq_show+0x530/0x6f0 [ 32.147449] seq_read_iter+0x503/0x12a0 [ 32.148419] seq_read+0x31f/0x410 [ 32.150714] vfs_read+0x1f0/0x9e0 [ 32.152297] ksys_read+0x125/0x240 IOW ovl_check_encode_origin derefs inode->i_sb->s_root, after it was set to NULL in the unmount path. Fix it by protecting calling exportfs_encode_fid() from show_mark_fhandle() with s_umount lock. This form of fix was suggested by Amir in [1]. [1]: https://lore.kernel.org/all/CAOQ4uxhbDwhb+2Brs1UdkoF0a3NSdBAOQPNfEHjahrgoKJ… Fixes: c45beebfde34 ("ovl: support encoding fid from inode with no alias") Signed-off-by: Jakub Acs <acsjakub(a)amazon.de> Cc: Jan Kara <jack(a)suse.cz> Cc: Amir Goldstein <amir73il(a)gmail.com> Cc: Miklos Szeredi <miklos(a)szeredi.hu> Cc: Christian Brauner <brauner(a)kernel.org> Cc: linux-unionfs(a)vger.kernel.org Cc: linux-fsdevel(a)vger.kernel.org Cc: linux-kernel(a)vger.kernel.org Cc: stable(a)vger.kernel.org --- This issue was already discussed in [1] with no consensus reached on the fix. This form was suggested as a band-aid fix, without explicity yes/no reaction. Hence reviving the discussion around the band-aid. fs/notify/fdinfo.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/fs/notify/fdinfo.c b/fs/notify/fdinfo.c index 1161eabf11ee..9cc7eb863643 100644 --- a/fs/notify/fdinfo.c +++ b/fs/notify/fdinfo.c @@ -17,6 +17,7 @@ #include "fanotify/fanotify.h" #include "fdinfo.h" #include "fsnotify.h" +#include "../internal.h" #if defined(CONFIG_PROC_FS) @@ -46,7 +47,12 @@ static void show_mark_fhandle(struct seq_file *m, struct inode *inode) size = f->handle_bytes >> 2; + if (!super_trylock_shared(inode->i_sb)) + return; + ret = exportfs_encode_fid(inode, (struct fid *)f->f_handle, &size); + up_read(&inode->i_sb->s_umount); + if ((ret == FILEID_INVALID) || (ret < 0)) return; -- 2.47.3 Amazon Web Services Development Center Germany GmbH Tamara-Danz-Str. 13 10243 Berlin Geschaeftsfuehrung: Christian Schlaeger Eingetragen am Amtsgericht Charlottenburg unter HRB 257764 B Sitz: Berlin Ust-ID: DE 365 538 597

1 month

2
1
0 0

[PATCH] ovl: check before dereferencing s_root field

by Jakub Acs

Calling intotify_show_fdinfo() on fd watching an overlayfs inode, while the overlayfs is being unmounted, can lead to dereferencing NULL ptr. This issue was found by syzkaller. Race Condition Diagram: Thread 1 Thread 2 -------- -------- generic_shutdown_super() shrink_dcache_for_umount sb->s_root = NULL | | vfs_read() | inotify_fdinfo() | * inode get from mark * | show_mark_fhandle(m, inode) | exportfs_encode_fid(inode, ..) | ovl_encode_fh(inode, ..) | ovl_check_encode_origin(inode) | * deref i_sb->s_root * | | v fsnotify_sb_delete(sb) Which then leads to: [ 32.133461] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN NOPTI [ 32.134438] KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037] [ 32.135032] CPU: 1 UID: 0 PID: 4468 Comm: systemd-coredum Not tainted 6.17.0-rc6 #22 PREEMPT(none) <snip registers, unreliable trace> [ 32.143353] Call Trace: [ 32.143732] ovl_encode_fh+0xd5/0x170 [ 32.144031] exportfs_encode_inode_fh+0x12f/0x300 [ 32.144425] show_mark_fhandle+0xbe/0x1f0 [ 32.145805] inotify_fdinfo+0x226/0x2d0 [ 32.146442] inotify_show_fdinfo+0x1c5/0x350 [ 32.147168] seq_show+0x530/0x6f0 [ 32.147449] seq_read_iter+0x503/0x12a0 [ 32.148419] seq_read+0x31f/0x410 [ 32.150714] vfs_read+0x1f0/0x9e0 [ 32.152297] ksys_read+0x125/0x240 IOW ovl_check_encode_origin derefs inode->i_sb->s_root, after it was set to NULL in the unmount path. Minimize the window of opportunity by adding explicit check. Fixes: c45beebfde34 ("ovl: support encoding fid from inode with no alias") Signed-off-by: Jakub Acs <acsjakub(a)amazon.de> Cc: Miklos Szeredi <miklos(a)szeredi.hu> Cc: Amir Goldstein <amir73il(a)gmail.com> Cc: linux-unionfs(a)vger.kernel.org Cc: linux-kernel(a)vger.kernel.org Cc: stable(a)vger.kernel.org --- I'm happy to take suggestions for a better fix - I looked at taking s_umount for reading, but it wasn't clear to me for how long would the fdinfo path need to hold it. Hence the most primitive suggestion in this v1. I'm also not sure if ENOENT or EBUSY is better?.. or even something else? fs/overlayfs/export.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/overlayfs/export.c b/fs/overlayfs/export.c index 83f80fdb1567..424c73188e06 100644 --- a/fs/overlayfs/export.c +++ b/fs/overlayfs/export.c @@ -195,6 +195,8 @@ static int ovl_check_encode_origin(struct inode *inode) if (!ovl_inode_lower(inode)) return 0; + if (!inode->i_sb->s_root) + return -ENOENT; /* * Root is never indexed, so if there's an upper layer, encode upper for * root. -- 2.47.3 Amazon Web Services Development Center Germany GmbH Tamara-Danz-Str. 13 10243 Berlin Geschaeftsfuehrung: Christian Schlaeger, Jonathan Weiss Eingetragen am Amtsgericht Charlottenburg unter HRB 257764 B Sitz: Berlin Ust-ID: DE 365 538 597

1 month

4
14
0 0

[PATCH v2] mm/ksm: fix flag-dropping behavior in ksm_madvise

by Jakub Acs

syzkaller discovered the following crash: (kernel BUG) [ 44.607039] ------------[ cut here ]------------ [ 44.607422] kernel BUG at mm/userfaultfd.c:2067! [ 44.608148] Oops: invalid opcode: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN NOPTI [ 44.608814] CPU: 1 UID: 0 PID: 2475 Comm: reproducer Not tainted 6.16.0-rc6 #1 PREEMPT(none) [ 44.609635] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 44.610695] RIP: 0010:userfaultfd_release_all+0x3a8/0x460 <snip other registers, drop unreliable trace> [ 44.617726] Call Trace: [ 44.617926] <TASK> [ 44.619284] userfaultfd_release+0xef/0x1b0 [ 44.620976] __fput+0x3f9/0xb60 [ 44.621240] fput_close_sync+0x110/0x210 [ 44.622222] __x64_sys_close+0x8f/0x120 [ 44.622530] do_syscall_64+0x5b/0x2f0 [ 44.622840] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 44.623244] RIP: 0033:0x7f365bb3f227 Kernel panics because it detects UFFD inconsistency during userfaultfd_release_all(). Specifically, a VMA which has a valid pointer to vma->vm_userfaultfd_ctx, but no UFFD flags in vma->vm_flags. The inconsistency is caused in ksm_madvise(): when user calls madvise() with MADV_UNMEARGEABLE on a VMA that is registered for UFFD in MINOR mode, it accidentally clears all flags stored in the upper 32 bits of vma->vm_flags. Assuming x86_64 kernel build, unsigned long is 64-bit and unsigned int and int are 32-bit wide. This setup causes the following mishap during the &= ~VM_MERGEABLE assignment. VM_MERGEABLE is a 32-bit constant of type unsigned int, 0x8000'0000. After ~ is applied, it becomes 0x7fff'ffff unsigned int, which is then promoted to unsigned long before the & operation. This promotion fills upper 32 bits with leading 0s, as we're doing unsigned conversion (and even for a signed conversion, this wouldn't help as the leading bit is 0). & operation thus ends up AND-ing vm_flags with 0x0000'0000'7fff'ffff instead of intended 0xffff'ffff'7fff'ffff and hence accidentally clears the upper 32-bits of its value. Fix it by changing `VM_MERGEABLE` constant to unsigned long. Modify all other VM_* flags constants for consistency. Note: other VM_* flags are not affected: This only happens to the VM_MERGEABLE flag, as the other VM_* flags are all constants of type int and after ~ operation, they end up with leading 1 and are thus converted to unsigned long with leading 1s. Note 2: After commit 31defc3b01d9 ("userfaultfd: remove (VM_)BUG_ON()s"), this is no longer a kernel BUG, but a WARNING at the same place: [ 45.595973] WARNING: CPU: 1 PID: 2474 at mm/userfaultfd.c:2067 but the root-cause (flag-drop) remains the same. Fixes: 7677f7fd8be76 ("userfaultfd: add minor fault registration mode") Signed-off-by: Jakub Acs <acsjakub(a)amazon.de> Cc: Andrew Morton <akpm(a)linux-foundation.org> Cc: David Hildenbrand <david(a)redhat.com> Cc: Xu Xin <xu.xin16(a)zte.com.cn> Cc: Chengming Zhou <chengming.zhou(a)linux.dev> Cc: Peter Xu <peterx(a)redhat.com> Cc: Axel Rasmussen <axelrasmussen(a)google.com> Cc: linux-mm(a)kvack.org Cc: linux-kernel(a)vger.kernel.org Cc: stable(a)vger.kernel.org --- v1 -> v2: - fix by adding ul to flag constants instead of explicit cast. - drop Mike Kravetz <mike.kravetz(a)oracle.com> from cc, as the mail returned v1: https://lore.kernel.org/all/20250930063921.62354-1-acsjakub@amazon.de/ include/linux/mm.h | 72 +++++++++++++++++++++++----------------------- 1 file changed, 36 insertions(+), 36 deletions(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index 1ae97a0b8ec7..26a5c0f78b36 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -246,57 +246,57 @@ extern unsigned int kobjsize(const void *objp); * vm_flags in vm_area_struct, see mm_types.h. * When changing, update also include/trace/events/mmflags.h */ -#define VM_NONE 0x00000000 +#define VM_NONE 0x00000000ul -#define VM_READ 0x00000001 /* currently active flags */ -#define VM_WRITE 0x00000002 -#define VM_EXEC 0x00000004 -#define VM_SHARED 0x00000008 +#define VM_READ 0x00000001ul /* currently active flags */ +#define VM_WRITE 0x00000002ul +#define VM_EXEC 0x00000004ul +#define VM_SHARED 0x00000008ul /* mprotect() hardcodes VM_MAYREAD >> 4 == VM_READ, and so for r/w/x bits. */ -#define VM_MAYREAD 0x00000010 /* limits for mprotect() etc */ -#define VM_MAYWRITE 0x00000020 -#define VM_MAYEXEC 0x00000040 -#define VM_MAYSHARE 0x00000080 +#define VM_MAYREAD 0x00000010ul /* limits for mprotect() etc */ +#define VM_MAYWRITE 0x00000020ul +#define VM_MAYEXEC 0x00000040ul +#define VM_MAYSHARE 0x00000080ul -#define VM_GROWSDOWN 0x00000100 /* general info on the segment */ +#define VM_GROWSDOWN 0x00000100ul /* general info on the segment */ #ifdef CONFIG_MMU -#define VM_UFFD_MISSING 0x00000200 /* missing pages tracking */ +#define VM_UFFD_MISSING 0x00000200ul /* missing pages tracking */ #else /* CONFIG_MMU */ -#define VM_MAYOVERLAY 0x00000200 /* nommu: R/O MAP_PRIVATE mapping that might overlay a file mapping */ -#define VM_UFFD_MISSING 0 +#define VM_MAYOVERLAY 0x00000200ul /* nommu: R/O MAP_PRIVATE mapping that might overlay a file mapping */ +#define VM_UFFD_MISSING 0ul #endif /* CONFIG_MMU */ -#define VM_PFNMAP 0x00000400 /* Page-ranges managed without "struct page", just pure PFN */ -#define VM_UFFD_WP 0x00001000 /* wrprotect pages tracking */ +#define VM_PFNMAP 0x00000400ul /* Page-ranges managed without "struct page", just pure PFN */ +#define VM_UFFD_WP 0x00001000ul /* wrprotect pages tracking */ -#define VM_LOCKED 0x00002000 -#define VM_IO 0x00004000 /* Memory mapped I/O or similar */ +#define VM_LOCKED 0x00002000ul +#define VM_IO 0x00004000ul /* Memory mapped I/O or similar */ /* Used by sys_madvise() */ -#define VM_SEQ_READ 0x00008000 /* App will access data sequentially */ -#define VM_RAND_READ 0x00010000 /* App will not benefit from clustered reads */ - -#define VM_DONTCOPY 0x00020000 /* Do not copy this vma on fork */ -#define VM_DONTEXPAND 0x00040000 /* Cannot expand with mremap() */ -#define VM_LOCKONFAULT 0x00080000 /* Lock the pages covered when they are faulted in */ -#define VM_ACCOUNT 0x00100000 /* Is a VM accounted object */ -#define VM_NORESERVE 0x00200000 /* should the VM suppress accounting */ -#define VM_HUGETLB 0x00400000 /* Huge TLB Page VM */ -#define VM_SYNC 0x00800000 /* Synchronous page faults */ -#define VM_ARCH_1 0x01000000 /* Architecture-specific flag */ -#define VM_WIPEONFORK 0x02000000 /* Wipe VMA contents in child. */ -#define VM_DONTDUMP 0x04000000 /* Do not include in the core dump */ +#define VM_SEQ_READ 0x00008000ul /* App will access data sequentially */ +#define VM_RAND_READ 0x00010000ul /* App will not benefit from clustered reads */ + +#define VM_DONTCOPY 0x00020000ul /* Do not copy this vma on fork */ +#define VM_DONTEXPAND 0x00040000ul /* Cannot expand with mremap() */ +#define VM_LOCKONFAULT 0x00080000ul /* Lock the pages covered when they are faulted in */ +#define VM_ACCOUNT 0x00100000ul /* Is a VM accounted object */ +#define VM_NORESERVE 0x00200000ul /* should the VM suppress accounting */ +#define VM_HUGETLB 0x00400000ul /* Huge TLB Page VM */ +#define VM_SYNC 0x00800000ul /* Synchronous page faults */ +#define VM_ARCH_1 0x01000000ul /* Architecture-specific flag */ +#define VM_WIPEONFORK 0x02000000ul /* Wipe VMA contents in child. */ +#define VM_DONTDUMP 0x04000000ul /* Do not include in the core dump */ #ifdef CONFIG_MEM_SOFT_DIRTY -# define VM_SOFTDIRTY 0x08000000 /* Not soft dirty clean area */ +# define VM_SOFTDIRTY 0x08000000ul /* Not soft dirty clean area */ #else -# define VM_SOFTDIRTY 0 +# define VM_SOFTDIRTY 0ul #endif -#define VM_MIXEDMAP 0x10000000 /* Can contain "struct page" and pure PFN pages */ -#define VM_HUGEPAGE 0x20000000 /* MADV_HUGEPAGE marked this vma */ -#define VM_NOHUGEPAGE 0x40000000 /* MADV_NOHUGEPAGE marked this vma */ -#define VM_MERGEABLE 0x80000000 /* KSM may merge identical pages */ +#define VM_MIXEDMAP 0x10000000ul /* Can contain "struct page" and pure PFN pages */ +#define VM_HUGEPAGE 0x20000000ul /* MADV_HUGEPAGE marked this vma */ +#define VM_NOHUGEPAGE 0x40000000ul /* MADV_NOHUGEPAGE marked this vma */ +#define VM_MERGEABLE 0x80000000ul /* KSM may merge identical pages */ #ifdef CONFIG_ARCH_USES_HIGH_VMA_FLAGS #define VM_HIGH_ARCH_BIT_0 32 /* bit only usable on 64-bit architectures */ -- 2.47.3 Amazon Web Services Development Center Germany GmbH Tamara-Danz-Str. 13 10243 Berlin Geschaeftsfuehrung: Christian Schlaeger Eingetragen am Amtsgericht Charlottenburg unter HRB 257764 B Sitz: Berlin Ust-ID: DE 365 538 597

1 month

2
2
0 0

Re: [PATCH] dma-mapping: fix direction in dma_alloc direction traces

by Petr Tesarik

Cc: stable(a)vger.kernel.org (One day, I'll finally remember, I promise.) Petr T On Wed, 1 Oct 2025 08:10:28 +0200 Petr Tesarik <ptesarik(a)suse.com> wrote: > Set __entry->dir to the actual "dir" parameter of all trace events > in dma_alloc_class. This struct member was left uninitialized by > mistake. > > Signed-off-by: Petr Tesarik <ptesarik(a)suse.com> > Fixes: 3afff779a725 ("dma-mapping: trace dma_alloc/free direction") > --- > include/trace/events/dma.h | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/include/trace/events/dma.h b/include/trace/events/dma.h > index d8ddc27b6a7c8..945fcbaae77e9 100644 > --- a/include/trace/events/dma.h > +++ b/include/trace/events/dma.h > @@ -134,6 +134,7 @@ DECLARE_EVENT_CLASS(dma_alloc_class, > __entry->dma_addr = dma_addr; > __entry->size = size; > __entry->flags = flags; > + __entry->dir = dir; > __entry->attrs = attrs; > ), >

1 month

1
0
0 0

[PATCH v3] fbdev/simplefb: Fix use after free in simplefb_detach_genpds()

by Janne Grunau

The pm_domain cleanup can not be devres managed as it uses struct simplefb_par which is allocated within struct fb_info by framebuffer_alloc(). This allocation is explicitly freed by unregister_framebuffer() in simplefb_remove(). Devres managed cleanup runs after the device remove call and thus can no longer access struct simplefb_par. Call simplefb_detach_genpds() explicitly from simplefb_destroy() like the cleanup functions for clocks and regulators. Fixes an use after free on M2 Mac mini during aperture_remove_conflicting_devices() using the downstream asahi kernel with Debian's kernel config. For unknown reasons this started to consistently dereference an invalid pointer in v6.16.3 based kernels. [ 6.736134] BUG: KASAN: slab-use-after-free in simplefb_detach_genpds+0x58/0x220 [ 6.743545] Read of size 4 at addr ffff8000304743f0 by task (udev-worker)/227 [ 6.750697] [ 6.752182] CPU: 6 UID: 0 PID: 227 Comm: (udev-worker) Tainted: G S 6.16.3-asahi+ #16 PREEMPTLAZY [ 6.752186] Tainted: [S]=CPU_OUT_OF_SPEC [ 6.752187] Hardware name: Apple Mac mini (M2, 2023) (DT) [ 6.752189] Call trace: [ 6.752190] show_stack+0x34/0x98 (C) [ 6.752194] dump_stack_lvl+0x60/0x80 [ 6.752197] print_report+0x17c/0x4d8 [ 6.752201] kasan_report+0xb4/0x100 [ 6.752206] __asan_report_load4_noabort+0x20/0x30 [ 6.752209] simplefb_detach_genpds+0x58/0x220 [ 6.752213] devm_action_release+0x50/0x98 [ 6.752216] release_nodes+0xd0/0x2c8 [ 6.752219] devres_release_all+0xfc/0x178 [ 6.752221] device_unbind_cleanup+0x28/0x168 [ 6.752224] device_release_driver_internal+0x34c/0x470 [ 6.752228] device_release_driver+0x20/0x38 [ 6.752231] bus_remove_device+0x1b0/0x380 [ 6.752234] device_del+0x314/0x820 [ 6.752238] platform_device_del+0x3c/0x1e8 [ 6.752242] platform_device_unregister+0x20/0x50 [ 6.752246] aperture_detach_platform_device+0x1c/0x30 [ 6.752250] aperture_detach_devices+0x16c/0x290 [ 6.752253] aperture_remove_conflicting_devices+0x34/0x50 ... [ 6.752343] [ 6.967409] Allocated by task 62: [ 6.970724] kasan_save_stack+0x3c/0x70 [ 6.974560] kasan_save_track+0x20/0x40 [ 6.978397] kasan_save_alloc_info+0x40/0x58 [ 6.982670] __kasan_kmalloc+0xd4/0xd8 [ 6.986420] __kmalloc_noprof+0x194/0x540 [ 6.990432] framebuffer_alloc+0xc8/0x130 [ 6.994444] simplefb_probe+0x258/0x2378 ... [ 7.054356] [ 7.055838] Freed by task 227: [ 7.058891] kasan_save_stack+0x3c/0x70 [ 7.062727] kasan_save_track+0x20/0x40 [ 7.066565] kasan_save_free_info+0x4c/0x80 [ 7.070751] __kasan_slab_free+0x6c/0xa0 [ 7.074675] kfree+0x10c/0x380 [ 7.077727] framebuffer_release+0x5c/0x90 [ 7.081826] simplefb_destroy+0x1b4/0x2c0 [ 7.085837] put_fb_info+0x98/0x100 [ 7.089326] unregister_framebuffer+0x178/0x320 [ 7.093861] simplefb_remove+0x3c/0x60 [ 7.097611] platform_remove+0x60/0x98 [ 7.101361] device_remove+0xb8/0x160 [ 7.105024] device_release_driver_internal+0x2fc/0x470 [ 7.110256] device_release_driver+0x20/0x38 [ 7.114529] bus_remove_device+0x1b0/0x380 [ 7.118628] device_del+0x314/0x820 [ 7.122116] platform_device_del+0x3c/0x1e8 [ 7.126302] platform_device_unregister+0x20/0x50 [ 7.131012] aperture_detach_platform_device+0x1c/0x30 [ 7.136157] aperture_detach_devices+0x16c/0x290 [ 7.140779] aperture_remove_conflicting_devices+0x34/0x50 ... Reported-by: Daniel Huhardeaux <tech(a)tootai.net> Cc: stable(a)vger.kernel.org Fixes: 92a511a568e44 ("fbdev/simplefb: Add support for generic power-domains") Signed-off-by: Janne Grunau <j(a)jannau.net> --- Changes in v3: - release power-domains on probe errors - set par->num_genpds when it's <= 1 - set par->num_genpds to 0 after detaching - Link to v2: https://lore.kernel.org/r/20250908-simplefb-genpd-uaf-v2-1-f88a0d9d880f@jan… Changes in v2: - reworked change due to missed use of `par->num_genpds` before setting it. Missed in testing due to mixing up FB_SIMPLE and SYSFB_SIMPLEFB. - Link to v1: https://lore.kernel.org/r/20250901-simplefb-genpd-uaf-v1-1-0d9f3a34c4dc@jan… --- drivers/video/fbdev/simplefb.c | 31 +++++++++++++++++++++++-------- 1 file changed, 23 insertions(+), 8 deletions(-) diff --git a/drivers/video/fbdev/simplefb.c b/drivers/video/fbdev/simplefb.c index 1893815dc67f4c1403eea42c0e10a7ead4d96ba9..6acf5a00c2bacfab89c3a63bab3d8b1b091a20a8 100644 --- a/drivers/video/fbdev/simplefb.c +++ b/drivers/video/fbdev/simplefb.c @@ -93,6 +93,7 @@ struct simplefb_par { static void simplefb_clocks_destroy(struct simplefb_par *par); static void simplefb_regulators_destroy(struct simplefb_par *par); +static void simplefb_detach_genpds(void *res); /* * fb_ops.fb_destroy is called by the last put_fb_info() call at the end @@ -105,6 +106,7 @@ static void simplefb_destroy(struct fb_info *info) simplefb_regulators_destroy(info->par); simplefb_clocks_destroy(info->par); + simplefb_detach_genpds(info->par); if (info->screen_base) iounmap(info->screen_base); @@ -445,13 +447,14 @@ static void simplefb_detach_genpds(void *res) if (!IS_ERR_OR_NULL(par->genpds[i])) dev_pm_domain_detach(par->genpds[i], true); } + par->num_genpds = 0; } static int simplefb_attach_genpds(struct simplefb_par *par, struct platform_device *pdev) { struct device *dev = &pdev->dev; - unsigned int i; + unsigned int i, num_genpds; int err; err = of_count_phandle_with_args(dev->of_node, "power-domains", @@ -465,26 +468,35 @@ static int simplefb_attach_genpds(struct simplefb_par *par, return err; } - par->num_genpds = err; + num_genpds = err; /* * Single power-domain devices are handled by the driver core, so * nothing to do here. */ - if (par->num_genpds <= 1) + if (num_genpds <= 1) { + par->num_genpds = num_genpds; return 0; + } - par->genpds = devm_kcalloc(dev, par->num_genpds, sizeof(*par->genpds), + par->genpds = devm_kcalloc(dev, num_genpds, sizeof(*par->genpds), GFP_KERNEL); if (!par->genpds) return -ENOMEM; - par->genpd_links = devm_kcalloc(dev, par->num_genpds, + par->genpd_links = devm_kcalloc(dev, num_genpds, sizeof(*par->genpd_links), GFP_KERNEL); if (!par->genpd_links) return -ENOMEM; + /* + * Set par->num_genpds only after genpds and genpd_links are allocated + * to exit early from simplefb_detach_genpds() without full + * initialisation. + */ + par->num_genpds = num_genpds; + for (i = 0; i < par->num_genpds; i++) { par->genpds[i] = dev_pm_domain_attach_by_id(dev, i); if (IS_ERR(par->genpds[i])) { @@ -506,9 +518,10 @@ static int simplefb_attach_genpds(struct simplefb_par *par, dev_warn(dev, "failed to link power-domain %u\n", i); } - return devm_add_action_or_reset(dev, simplefb_detach_genpds, par); + return 0; } #else +static void simplefb_detach_genpds(void *res) { } static int simplefb_attach_genpds(struct simplefb_par *par, struct platform_device *pdev) { @@ -622,18 +635,20 @@ static int simplefb_probe(struct platform_device *pdev) ret = devm_aperture_acquire_for_platform_device(pdev, par->base, par->size); if (ret) { dev_err(&pdev->dev, "Unable to acquire aperture: %d\n", ret); - goto error_regulators; + goto error_genpds; } ret = register_framebuffer(info); if (ret < 0) { dev_err(&pdev->dev, "Unable to register simplefb: %d\n", ret); - goto error_regulators; + goto error_genpds; } dev_info(&pdev->dev, "fb%d: simplefb registered!\n", info->node); return 0; +error_genpds: + simplefb_detach_genpds(par); error_regulators: simplefb_regulators_destroy(par); error_clocks: --- base-commit: 8f5ae30d69d7543eee0d70083daf4de8fe15d585 change-id: 20250901-simplefb-genpd-uaf-352704761a29 Best regards, -- Janne Grunau <j(a)jannau.net>

1 month

3
4
0 0

Check this out at Amazon

by llk16 9157

Purchase this ALCHIMERA ebook, and a portion of the proceeds will help children and families in need in Gaza, Ukraine, and the DRC: Your gesture is a seed of love that will bear eternal fruit. https://a.co/d/aDuLWHN 🆘Buy this book, save a life today. Every word you read, every page you turn, becomes an act of compassion. 💔 Children cry from hunger in Gaza, Ukraine, and eastern DRC. Your purchase becomes a hot meal, a blanket, a breath of hope for those who have nothing left. This isn't just an ebook. It's a mission. A portion of the funds is sent to disaster-stricken families suffering from serious hunger. 🙏 Share this message. Give this book as a gift. Increase the number of lifesaving actions. Every share is an answered prayer. Every purchase is a helping hand. May God bless you abundantly for your generous heart. This book is in your hands. Someone's life too.

1 month

1
0
0 0

[PATCH] ext4: fix use-after-free in extent header access

by Deepanshu Kartikey

#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master syzbot reported use-after-free bugs when accessing extent headers in ext4_ext_insert_extent() and ext4_ext_correct_indexes(). These occur when the extent path structure becomes invalid during operations. The crashes show two patterns: 1. In ext4_ext_map_blocks(), the extent header can be corrupted after ext4_find_extent() returns, particularly during concurrent writes to the same file. 2. In ext4_ext_correct_indexes(), accessing path[depth] causes a use-after-free, indicating the path structure itself is corrupted. This is partially exposed by commit 665575cff098 ("filemap: move prefaulting out of hot write path") which changed timing windows in the write path, making these races more likely to occur. Fix this by adding validation checks: - In ext4_ext_map_blocks(): validate the extent header after getting the path from ext4_find_extent() - In ext4_ext_correct_indexes(): validate the path pointer before dereferencing and check extent header magic While these checks are defensive and don't address the root cause of path corruption, they prevent kernel crashes from invalid memory access. A more comprehensive fix to path lifetime management may be needed in the future. Reported-by: syzbot+9db318d6167044609878(a)syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=9db318d6167044609878 Fixes: 665575cff098 ("filemap: move prefaulting out of hot write path") Cc: stable(a)vger.kernel.org Signed-off-by: Deepanshu Kartikey <kartikey406(a)gmail.com> --- fs/ext4/extents.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index ca5499e9412b..903578d5f68d 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -1708,7 +1708,9 @@ static int ext4_ext_correct_indexes(handle_t *handle, struct inode *inode, struct ext4_extent *ex; __le32 border; int k, err = 0; - + if (!path || depth < 0 || depth > EXT4_MAX_EXTENT_DEPTH) { + return -EFSCORRUPTED; + } eh = path[depth].p_hdr; ex = path[depth].p_ext; @@ -4200,6 +4202,7 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode, unsigned int allocated_clusters = 0; struct ext4_allocation_request ar; ext4_lblk_t cluster_offset; + struct ext4_extent_header *eh; ext_debug(inode, "blocks %u/%u requested\n", map->m_lblk, map->m_len); trace_ext4_ext_map_blocks_enter(inode, map->m_lblk, map->m_len, flags); @@ -4212,7 +4215,12 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode, } depth = ext_depth(inode); - + eh = path[depth].p_hdr; + if (!eh || le16_to_cpu(eh->eh_magic) != EXT4_EXT_MAGIC) { + EXT4_ERROR_INODE(inode, "invalid extent header after find_extent"); + err = -EFSCORRUPTED; + goto out; + } /* * consistent leaf must not be empty; * this situation is possible, though, _during_ tree modification; -- 2.43.0

1 month

2
1
0 0

+ mm-damon-vaddr-do-not-repeat-pte_offset_map_lock-until-success.patch added to mm-hotfixes-unstable branch

by Andrew Morton

The patch titled Subject: mm/damon/vaddr: do not repeat pte_offset_map_lock() until success has been added to the -mm mm-hotfixes-unstable branch. Its filename is mm-damon-vaddr-do-not-repeat-pte_offset_map_lock-until-success.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: SeongJae Park <sj(a)kernel.org> Subject: mm/damon/vaddr: do not repeat pte_offset_map_lock() until success Date: Mon, 29 Sep 2025 17:44:09 -0700 DAMON's virtual address space operation set implementation (vaddr) calls pte_offset_map_lock() inside the page table walk callback function. This is for reading and writing page table accessed bits. If pte_offset_map_lock() fails, it retries by returning the page table walk callback function with ACTION_AGAIN. pte_offset_map_lock() can continuously fail if the target is a pmd migration entry, though. Hence it could cause an infinite page table walk if the migration cannot be done until the page table walk is finished. This indeed caused a soft lockup when CPU hotplugging and DAMON were running in parallel. Avoid the infinite loop by simply not retrying the page table walk. DAMON is promising only a best-effort accuracy, so missing access to such pages is no problem. Link: https://lkml.kernel.org/r/20250930004410.55228-1-sj@kernel.org Fixes: 7780d04046a2 ("mm/pagewalkers: ACTION_AGAIN if pte_offset_map_lock() fails") Signed-off-by: SeongJae Park <sj(a)kernel.org> Reported-by: Xinyu Zheng <zhengxinyu6(a)huawei.com> Closes: https://lore.kernel.org/20250918030029.2652607-1-zhengxinyu6@huawei.com Acked-by: Hugh Dickins <hughd(a)google.com> Cc: <stable(a)vger.kernel.org> [6.5+] Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- mm/damon/vaddr.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) --- a/mm/damon/vaddr.c~mm-damon-vaddr-do-not-repeat-pte_offset_map_lock-until-success +++ a/mm/damon/vaddr.c @@ -328,10 +328,8 @@ static int damon_mkold_pmd_entry(pmd_t * } pte = pte_offset_map_lock(walk->mm, pmd, addr, &ptl); - if (!pte) { - walk->action = ACTION_AGAIN; + if (!pte) return 0; - } if (!pte_present(ptep_get(pte))) goto out; damon_ptep_mkold(pte, walk->vma, addr); @@ -481,10 +479,8 @@ regular_page: #endif /* CONFIG_TRANSPARENT_HUGEPAGE */ pte = pte_offset_map_lock(walk->mm, pmd, addr, &ptl); - if (!pte) { - walk->action = ACTION_AGAIN; + if (!pte) return 0; - } ptent = ptep_get(pte); if (!pte_present(ptent)) goto out; _ Patches currently in -mm which might be from sj(a)kernel.org are mm-damon-vaddr-do-not-repeat-pte_offset_map_lock-until-success.patch

1 month

1
0
0 0

+ mm-rmap-fix-soft-dirty-and-uffd-wp-bit-loss-when-remapping-zero-filled-mthp-subpage-to-shared-zeropage.patch added to mm-hotfixes-unstable branch

by Andrew Morton

The patch titled Subject: mm/rmap: fix soft-dirty and uffd-wp bit loss when remapping zero-filled mTHP subpage to shared zeropage has been added to the -mm mm-hotfixes-unstable branch. Its filename is mm-rmap-fix-soft-dirty-and-uffd-wp-bit-loss-when-remapping-zero-filled-mthp-subpage-to-shared-zeropage.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: Lance Yang <lance.yang(a)linux.dev> Subject: mm/rmap: fix soft-dirty and uffd-wp bit loss when remapping zero-filled mTHP subpage to shared zeropage Date: Tue, 30 Sep 2025 16:10:40 +0800 When splitting an mTHP and replacing a zero-filled subpage with the shared zeropage, try_to_map_unused_to_zeropage() currently drops several important PTE bits. For userspace tools like CRIU, which rely on the soft-dirty mechanism for incremental snapshots, losing the soft-dirty bit means modified pages are missed, leading to inconsistent memory state after restore. As pointed out by David, the more critical uffd-wp bit is also dropped. This breaks the userfaultfd write-protection mechanism, causing writes to be silently missed by monitoring applications, which can lead to data corruption. Preserve both the soft-dirty and uffd-wp bits from the old PTE when creating the new zeropage mapping to ensure they are correctly tracked. Link: https://lkml.kernel.org/r/20250930081040.80926-1-lance.yang@linux.dev Fixes: b1f202060afe ("mm: remap unused subpages to shared zeropage when splitting isolated thp") Signed-off-by: Lance Yang <lance.yang(a)linux.dev> Suggested-by: David Hildenbrand <david(a)redhat.com> Suggested-by: Dev Jain <dev.jain(a)arm.com> Acked-by: David Hildenbrand <david(a)redhat.com> Reviewed-by: Dev Jain <dev.jain(a)arm.com> Acked-by: Zi Yan <ziy(a)nvidia.com> Cc: Alistair Popple <apopple(a)nvidia.com> Cc: Baolin Wang <baolin.wang(a)linux.alibaba.com> Cc: Barry Song <baohua(a)kernel.org> Cc: Byungchul Park <byungchul(a)sk.com> Cc: Gregory Price <gourry(a)gourry.net> Cc: "Huang, Ying" <ying.huang(a)linux.alibaba.com> Cc: Jann Horn <jannh(a)google.com> Cc: Joshua Hahn <joshua.hahnjy(a)gmail.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: Mathew Brost <matthew.brost(a)intel.com> Cc: Peter Xu <peterx(a)redhat.com> Cc: Rakie Kim <rakie.kim(a)sk.com> Cc: Rik van Riel <riel(a)surriel.com> Cc: Ryan Roberts <ryan.roberts(a)arm.com> Cc: Usama Arif <usamaarif642(a)gmail.com> Cc: Vlastimil Babka <vbabka(a)suse.cz> Cc: Yu Zhao <yuzhao(a)google.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- mm/migrate.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) --- a/mm/migrate.c~mm-rmap-fix-soft-dirty-and-uffd-wp-bit-loss-when-remapping-zero-filled-mthp-subpage-to-shared-zeropage +++ a/mm/migrate.c @@ -297,8 +297,7 @@ bool isolate_folio_to_list(struct folio } static bool try_to_map_unused_to_zeropage(struct page_vma_mapped_walk *pvmw, - struct folio *folio, - unsigned long idx) + struct folio *folio, pte_t old_pte, unsigned long idx) { struct page *page = folio_page(folio, idx); pte_t newpte; @@ -307,7 +306,7 @@ static bool try_to_map_unused_to_zeropag return false; VM_BUG_ON_PAGE(!PageAnon(page), page); VM_BUG_ON_PAGE(!PageLocked(page), page); - VM_BUG_ON_PAGE(pte_present(ptep_get(pvmw->pte)), page); + VM_BUG_ON_PAGE(pte_present(old_pte), page); if (folio_test_mlocked(folio) || (pvmw->vma->vm_flags & VM_LOCKED) || mm_forbids_zeropage(pvmw->vma->vm_mm)) @@ -323,6 +322,12 @@ static bool try_to_map_unused_to_zeropag newpte = pte_mkspecial(pfn_pte(my_zero_pfn(pvmw->address), pvmw->vma->vm_page_prot)); + + if (pte_swp_soft_dirty(old_pte)) + newpte = pte_mksoft_dirty(newpte); + if (pte_swp_uffd_wp(old_pte)) + newpte = pte_mkuffd_wp(newpte); + set_pte_at(pvmw->vma->vm_mm, pvmw->address, pvmw->pte, newpte); dec_mm_counter(pvmw->vma->vm_mm, mm_counter(folio)); @@ -365,13 +370,13 @@ static bool remove_migration_pte(struct continue; } #endif + old_pte = ptep_get(pvmw.pte); if (rmap_walk_arg->map_unused_to_zeropage && - try_to_map_unused_to_zeropage(&pvmw, folio, idx)) + try_to_map_unused_to_zeropage(&pvmw, folio, old_pte, idx)) continue; folio_get(folio); pte = mk_pte(new, READ_ONCE(vma->vm_page_prot)); - old_pte = ptep_get(pvmw.pte); entry = pte_to_swp_entry(old_pte); if (!is_migration_entry_young(entry)) _ Patches currently in -mm which might be from lance.yang(a)linux.dev are hung_task-fix-warnings-caused-by-unaligned-lock-pointers.patch mm-thp-fix-mte-tag-mismatch-when-replacing-zero-filled-subpages.patch mm-rmap-fix-soft-dirty-and-uffd-wp-bit-loss-when-remapping-zero-filled-mthp-subpage-to-shared-zeropage.patch mm-clean-up-is_guard_pte_marker.patch

1 month

1
0
0 0

[PATCH] ext4: fix use-after-free in extent header access

by Deepanshu Kartikey

#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master syzbot reported multiple use-after-free bugs when accessing extent headers in various ext4 functions. These occur because extent headers can be freed by concurrent operations while other threads still hold pointers to them. The issue is triggered by racing threads performing concurrent writes to the same file. After commit 665575cff098 ("filemap: move prefaulting out of hot write path"), the write path no longer prefaults pages in the hot path, creating a wider race window where: 1. Thread A calls ext4_find_extent() and gets a path with extent headers 2. Thread A's write attempt fails, entering the slow path 3. During the gap, Thread B modifies the extent tree, freeing nodes 4. Thread A continues using the now-freed extent headers, causing UAF Fix this by validating the extent header in ext4_find_extent() before returning the path. This ensures all callers receive a valid extent path, fixing the race at a single point rather than adding checks throughout the codebase. This addresses crashes in ext4_ext_insert_extent(), ext4_ext_binsearch(), and potentially other locations that use extent paths. Reported-by: syzbot+9db318d6167044609878(a)syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=9db318d6167044609878 Fixes: 665575cff098 ("filemap: move prefaulting out of hot write path") Cc: stable(a)vger.kernel.org Signed-off-by: Deepanshu Kartikey <kartikey406(a)gmail.com> --- fs/ext4/extents.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index ca5499e9412b..04ceae5b0a34 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -4200,6 +4200,7 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode, unsigned int allocated_clusters = 0; struct ext4_allocation_request ar; ext4_lblk_t cluster_offset; + struct ext4_extent_header *eh; ext_debug(inode, "blocks %u/%u requested\n", map->m_lblk, map->m_len); trace_ext4_ext_map_blocks_enter(inode, map->m_lblk, map->m_len, flags); @@ -4212,7 +4213,12 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode, } depth = ext_depth(inode); - + eh = path[depth].p_hdr; + if (!eh || le16_to_cpu(eh->eh_magic) != EXT4_EXT_MAGIC) { + EXT4_ERROR_INODE(inode, "invalid extent header after find_extent"); + err = -EFSCORRUPTED; + goto out; + } /* * consistent leaf must not be empty; * this situation is possible, though, _during_ tree modification; -- 2.43.0

1 month

2
1
0 0

RE: Executive Assistants and HNWI Directory to Enhance Your Marketing and Networking

by Brenda Wilson

Hi , Hope you're doing well. I wanted to check if my previous email reached you. Do you need any additional information regarding my previous email? If so, I can provide it for your review. Regards Brenda Marketing Manager Prospect Tech Connect., Please reply with REMOVE if you don't wish to receive further emails -----Original Message----- From: Brenda Wilson Subject: Executive Assistants and HNWI Directory to Enhance Your Marketing and Networking Hi , Our verified database enables accurate outreach to Executive Assistants and high-net-worth individuals. Executive Assistants (by region): USA : 50,000 contacts Europe : 15,000 contacts Canada : 2,000 contacts Middle East : 2,500 contacts HNWI & Senior Decision-Makers (by region, incl. EAs): USA : 500,000 contacts Europe : 50,000 contacts Canada : 10,000 contacts UAE : 7,500 contacts Titles we cover: Business Owners, Founders, Entrepreneurs, C-Level Executives, VPs, and Executive Assistants. Data fields: Name, Job Title, Company, URL, Email, Revenue and more. This list helps reach gatekeepers and decision-makers who oversee charter service partnerships. Happy to share prices if that helps. Eager to receive your feedback. Regards Brenda Marketing Manager Prospect Tech Connect., Please reply with REMOVE if you don't wish to receive further emails

1 month

1
0
0 0

regression from 6.12.48 to 6.12.49: usb wlan adaptor stops working: bisected

by Wolfgang Walter

Hello,o after upgrading to 6.12.49 my wlan adapter stops working. It is detected: kernel: mt76x2u 4-2:1.0: ASIC revision: 76120044 kernel: mt76x2u 4-2:1.0: ROM patch build: 20141115060606a kernel: usb 3-4: reset high-speed USB device number 2 using xhci_hcd kernel: mt76x2u 4-2:1.0: Firmware Version: 0.0.00 kernel: mt76x2u 4-2:1.0: Build: 1 kernel: mt76x2u 4-2:1.0: Build Time: 201507311614____ but does nor work. The following 2 messages probably are relevant: kernel: mt76x2u 4-2:1.0: MAC RX failed to stop kernel: mt76x2u 4-2:1.0: MAC RX failed to stop later I see a lot of kernel: mt76x2u 4-2:1.0: error: mt76x02u_mcu_wait_resp failed with -110 I bisected it down to commit 9b28ef1e4cc07cdb35da257aa4358d0127168b68 usb: xhci: remove option to change a default ring's TRB cycle bit 9b28ef1e4cc07cdb35da257aa4358d0127168b68 is the first bad commit commit 9b28ef1e4cc07cdb35da257aa4358d0127168b68 Author: Niklas Neronin <niklas.neronin(a)linux.intel.com> Date: Wed Sep 17 08:39:07 2025 -0400 usb: xhci: remove option to change a default ring's TRB cycle bit [ Upstream commit e1b0fa863907a61e86acc19ce2d0633941907c8e ] The TRB cycle bit indicates TRB ownership by the Host Controller (HC) or Host Controller Driver (HCD). New rings are initialized with 'cycle_state' equal to one, and all its TRBs' cycle bits are set to zero. When handling ring expansion, set the source ring cycle bits to the same value as the destination ring. Move the cycle bit setting from xhci_segment_alloc() to xhci_link_rings(), and remove the 'cycle_state' argument from xhci_initialize_ring_info(). The xhci_segment_alloc() function uses kzalloc_node() to allocate segments, ensuring that all TRB cycle bits are initialized to zero. Signed-off-by: Niklas Neronin <niklas.neronin(a)linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman(a)linux.intel.com> Link: https://lore.kernel.org/r/20241106101459.775897-12-mathias.nyman@linux.inte… Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Stable-dep-of: a5c98e8b1398 ("xhci: dbc: Fix full DbC transfer ring after several reconnects") Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Regards, -- Wolfgang Walter Studierendenwerk München Oberbayern Anstalt des öffentlichen Rechts

1 month

3
4
0 0

[PATCH 6.1] arch_topology: Build cacheinfo from primary CPU

by Wen Yang

From: Pierre Gondois <pierre.gondois(a)arm.com> commit 5944ce092b97caed5d86d961e963b883b5c44ee2 upstream. commit 3fcbf1c77d08 ("arch_topology: Fix cache attributes detection in the CPU hotplug path") adds a call to detect_cache_attributes() to populate the cacheinfo before updating the siblings mask. detect_cache_attributes() allocates memory and can take the PPTT mutex (on ACPI platforms). On PREEMPT_RT kernels, on secondary CPUs, this triggers a: 'BUG: sleeping function called from invalid context' [1] as the code is executed with preemption and interrupts disabled. The primary CPU was previously storing the cache information using the now removed (struct cpu_topology).llc_id: commit 5b8dc787ce4a ("arch_topology: Drop LLC identifier stash from the CPU topology") allocate_cache_info() tries to build the cacheinfo from the primary CPU prior secondary CPUs boot, if the DT/ACPI description contains cache information. If allocate_cache_info() fails, then fallback to the current state for the cacheinfo allocation. [1] will be triggered in such case. When unplugging a CPU, the cacheinfo memory cannot be freed. If it was, then the memory would be allocated early by the re-plugged CPU and would trigger [1]. Note that populate_cache_leaves() might be called multiple times due to populate_leaves being moved up. This is required since detect_cache_attributes() might be called with per_cpu_cacheinfo(cpu) being allocated but not populated. [1]: | BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:46 | in_atomic(): 1, irqs_disabled(): 128, non_block: 0, pid: 0, name: swapper/111 | preempt_count: 1, expected: 0 | RCU nest depth: 1, expected: 1 | 3 locks held by swapper/111/0: | #0: (&pcp->lock){+.+.}-{3:3}, at: get_page_from_freelist+0x218/0x12c8 | #1: (rcu_read_lock){....}-{1:3}, at: rt_spin_trylock+0x48/0xf0 | #2: (&zone->lock){+.+.}-{3:3}, at: rmqueue_bulk+0x64/0xa80 | irq event stamp: 0 | hardirqs last enabled at (0): 0x0 | hardirqs last disabled at (0): copy_process+0x5dc/0x1ab8 | softirqs last enabled at (0): copy_process+0x5dc/0x1ab8 | softirqs last disabled at (0): 0x0 | Preemption disabled at: | migrate_enable+0x30/0x130 | CPU: 111 PID: 0 Comm: swapper/111 Tainted: G W 6.0.0-rc4-rt6-[...] | Call trace: | __kmalloc+0xbc/0x1e8 | detect_cache_attributes+0x2d4/0x5f0 | update_siblings_masks+0x30/0x368 | store_cpu_topology+0x78/0xb8 | secondary_start_kernel+0xd0/0x198 | __secondary_switched+0xb0/0xb4 Signed-off-by: Pierre Gondois <pierre.gondois(a)arm.com> Reviewed-by: Sudeep Holla <sudeep.holla(a)arm.com> Acked-by: Palmer Dabbelt <palmer(a)rivosinc.com> Link: https://lore.kernel.org/r/20230104183033.755668-7-pierre.gondois@arm.com Signed-off-by: Sudeep Holla <sudeep.holla(a)arm.com> Cc: <stable(a)vger.kernel.org> # 6.1.x: c3719bd:cacheinfo: Use RISC-V's init_cache_level() as generic OF implementation Cc: <stable(a)vger.kernel.org> # 6.1.x: 8844c3d:cacheinfo: Return error code in init_of_cache_level( Cc: <stable(a)vger.kernel.org> # 6.1.x: de0df44:cacheinfo: Check 'cache-unified' property to count cache leaves Cc: <stable(a)vger.kernel.org> # 6.1.x: fa4d566:ACPI: PPTT: Remove acpi_find_cache_levels() Cc: <stable(a)vger.kernel.org> # 6.1.x: bd50036:ACPI: PPTT: Update acpi_find_last_cache_level() to acpi_get_cache_info( Cc: <stable(a)vger.kernel.org> # 6.1.x Signed-off-by: Wen Yang <wen.yang(a)linux.dev> --- arch/riscv/kernel/cacheinfo.c | 5 --- drivers/base/arch_topology.c | 12 +++++- drivers/base/cacheinfo.c | 71 ++++++++++++++++++++++++++--------- include/linux/cacheinfo.h | 1 + 4 files changed, 65 insertions(+), 24 deletions(-) diff --git a/arch/riscv/kernel/cacheinfo.c b/arch/riscv/kernel/cacheinfo.c index 440a3df5944c..3a13113f1b29 100644 --- a/arch/riscv/kernel/cacheinfo.c +++ b/arch/riscv/kernel/cacheinfo.c @@ -113,11 +113,6 @@ static void fill_cacheinfo(struct cacheinfo **this_leaf, } } -int init_cache_level(unsigned int cpu) -{ - return init_of_cache_level(cpu); -} - int populate_cache_leaves(unsigned int cpu) { struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu); diff --git a/drivers/base/arch_topology.c b/drivers/base/arch_topology.c index e7d6e6657ffa..b1c1dd38ab01 100644 --- a/drivers/base/arch_topology.c +++ b/drivers/base/arch_topology.c @@ -736,7 +736,7 @@ void update_siblings_masks(unsigned int cpuid) ret = detect_cache_attributes(cpuid); if (ret && ret != -ENOENT) - pr_info("Early cacheinfo failed, ret = %d\n", ret); + pr_info("Early cacheinfo allocation failed, ret = %d\n", ret); /* update core and thread sibling masks */ for_each_online_cpu(cpu) { @@ -825,7 +825,7 @@ __weak int __init parse_acpi_topology(void) #if defined(CONFIG_ARM64) || defined(CONFIG_RISCV) void __init init_cpu_topology(void) { - int ret; + int cpu, ret; reset_cpu_topology(); ret = parse_acpi_topology(); @@ -840,6 +840,14 @@ void __init init_cpu_topology(void) reset_cpu_topology(); return; } + + for_each_possible_cpu(cpu) { + ret = fetch_cache_info(cpu); + if (ret) { + pr_err("Early cacheinfo failed, ret = %d\n", ret); + break; + } + } } void store_cpu_topology(unsigned int cpuid) diff --git a/drivers/base/cacheinfo.c b/drivers/base/cacheinfo.c index ab99b0f0d010..cd943d06d074 100644 --- a/drivers/base/cacheinfo.c +++ b/drivers/base/cacheinfo.c @@ -412,10 +412,6 @@ static void free_cache_attributes(unsigned int cpu) return; cache_shared_cpu_map_remove(cpu); - - kfree(per_cpu_cacheinfo(cpu)); - per_cpu_cacheinfo(cpu) = NULL; - cache_leaves(cpu) = 0; } int __weak init_cache_level(unsigned int cpu) @@ -428,29 +424,71 @@ int __weak populate_cache_leaves(unsigned int cpu) return -ENOENT; } +static inline +int allocate_cache_info(int cpu) +{ + per_cpu_cacheinfo(cpu) = kcalloc(cache_leaves(cpu), + sizeof(struct cacheinfo), GFP_ATOMIC); + if (!per_cpu_cacheinfo(cpu)) { + cache_leaves(cpu) = 0; + return -ENOMEM; + } + + return 0; +} + +int fetch_cache_info(unsigned int cpu) +{ + struct cpu_cacheinfo *this_cpu_ci; + unsigned int levels, split_levels; + int ret; + + if (acpi_disabled) { + ret = init_of_cache_level(cpu); + if (ret < 0) + return ret; + } else { + ret = acpi_get_cache_info(cpu, &levels, &split_levels); + if (ret < 0) + return ret; + + this_cpu_ci = get_cpu_cacheinfo(cpu); + this_cpu_ci->num_levels = levels; + /* + * This assumes that: + * - there cannot be any split caches (data/instruction) + * above a unified cache + * - data/instruction caches come by pair + */ + this_cpu_ci->num_leaves = levels + split_levels; + } + if (!cache_leaves(cpu)) + return -ENOENT; + + return allocate_cache_info(cpu); +} + int detect_cache_attributes(unsigned int cpu) { int ret; - /* Since early detection of the cacheinfo is allowed via this - * function and this also gets called as CPU hotplug callbacks via - * cacheinfo_cpu_online, the initialisation can be skipped and only - * CPU maps can be updated as the CPU online status would be update - * if called via cacheinfo_cpu_online path. + /* Since early initialization/allocation of the cacheinfo is allowed + * via fetch_cache_info() and this also gets called as CPU hotplug + * callbacks via cacheinfo_cpu_online, the init/alloc can be skipped + * as it will happen only once (the cacheinfo memory is never freed). + * Just populate the cacheinfo. */ if (per_cpu_cacheinfo(cpu)) - goto update_cpu_map; + goto populate_leaves; if (init_cache_level(cpu) || !cache_leaves(cpu)) return -ENOENT; - per_cpu_cacheinfo(cpu) = kcalloc(cache_leaves(cpu), - sizeof(struct cacheinfo), GFP_ATOMIC); - if (per_cpu_cacheinfo(cpu) == NULL) { - cache_leaves(cpu) = 0; - return -ENOMEM; - } + ret = allocate_cache_info(cpu); + if (ret) + return ret; +populate_leaves: /* * populate_cache_leaves() may completely setup the cache leaves and * shared_cpu_map or it may leave it partially setup. @@ -459,7 +497,6 @@ int detect_cache_attributes(unsigned int cpu) if (ret) goto free_ci; -update_cpu_map: /* * For systems using DT for cache hierarchy, fw_token * and shared_cpu_map will be set up here only if they are diff --git a/include/linux/cacheinfo.h b/include/linux/cacheinfo.h index 00d8e7f9d1c6..dfef57077cd0 100644 --- a/include/linux/cacheinfo.h +++ b/include/linux/cacheinfo.h @@ -85,6 +85,7 @@ int populate_cache_leaves(unsigned int cpu); int cache_setup_acpi(unsigned int cpu); bool last_level_cache_is_valid(unsigned int cpu); bool last_level_cache_is_shared(unsigned int cpu_x, unsigned int cpu_y); +int fetch_cache_info(unsigned int cpu); int detect_cache_attributes(unsigned int cpu); #ifndef CONFIG_ACPI_PPTT /* -- 2.25.1

1 month

2
4
0 0

[PATCH v5] net/can/gs_usb: increase max interface to U8_MAX

by Celeste Liu

This issue was found by Runcheng Lu when develop HSCanT USB to CAN FD converter[1]. The original developers may have only 3 interfaces device to test so they write 3 here and wait for future change. During the HSCanT development, we actually used 4 interfaces, so the limitation of 3 is not enough now. But just increase one is not future-proofed. Since the channel index type in gs_host_frame is u8, just make canch[] become a flexible array with a u8 index, so it naturally constraint by U8_MAX and avoid statically allocate 256 pointer for every gs_usb device. [1]: https://github.com/cherry-embedded/HSCanT-hardware Fixes: d08e973a77d1 ("can: gs_usb: Added support for the GS_USB CAN devices") Reported-by: Runcheng Lu <runcheng.lu(a)hpmicro.com> Cc: stable(a)vger.kernel.org Reviewed-by: Vincent Mailhol <mailhol(a)kernel.org> Signed-off-by: Celeste Liu <uwu(a)coelacanthus.name> --- Changes in v5: - Reword commit message to match the code better. - Link to v4: https://lore.kernel.org/r/20250930-gs-usb-max-if-v4-1-8e163eb583da@coelacan… Changes in v4: - Remove redudant typeof(). - Fix type: inteface -> interface. - Link to v3: https://lore.kernel.org/r/20250930-gs-usb-max-if-v3-1-21d97d7f1c34@coelacan… Changes in v3: - Cc stable should in patch instead of cover letter. - Link to v2: https://lore.kernel.org/r/20250930-gs-usb-max-if-v2-1-2cf9a44e6861@coelacan… Changes in v2: - Use flexible array member instead of fixed array. - Link to v1: https://lore.kernel.org/r/20250929-gs-usb-max-if-v1-1-e41b5c09133a@coelacan… --- drivers/net/can/usb/gs_usb.c | 22 ++++++++++------------ 1 file changed, 10 insertions(+), 12 deletions(-) diff --git a/drivers/net/can/usb/gs_usb.c b/drivers/net/can/usb/gs_usb.c index c9482d6e947b0c7b033dc4f0c35f5b111e1bfd92..9fb4cbbd6d6dc88f433020eb0417ea53cd0c4d5f 100644 --- a/drivers/net/can/usb/gs_usb.c +++ b/drivers/net/can/usb/gs_usb.c @@ -289,11 +289,6 @@ struct gs_host_frame { #define GS_MAX_RX_URBS 30 #define GS_NAPI_WEIGHT 32 -/* Maximum number of interfaces the driver supports per device. - * Current hardware only supports 3 interfaces. The future may vary. - */ -#define GS_MAX_INTF 3 - struct gs_tx_context { struct gs_can *dev; unsigned int echo_id; @@ -324,7 +319,6 @@ struct gs_can { /* usb interface struct */ struct gs_usb { - struct gs_can *canch[GS_MAX_INTF]; struct usb_anchor rx_submitted; struct usb_device *udev; @@ -336,9 +330,11 @@ struct gs_usb { unsigned int hf_size_rx; u8 active_channels; + u8 channel_cnt; unsigned int pipe_in; unsigned int pipe_out; + struct gs_can *canch[] __counted_by(channel_cnt); }; /* 'allocate' a tx context. @@ -599,7 +595,7 @@ static void gs_usb_receive_bulk_callback(struct urb *urb) } /* device reports out of range channel id */ - if (hf->channel >= GS_MAX_INTF) + if (hf->channel >= parent->channel_cnt) goto device_detach; dev = parent->canch[hf->channel]; @@ -699,7 +695,7 @@ static void gs_usb_receive_bulk_callback(struct urb *urb) /* USB failure take down all interfaces */ if (rc == -ENODEV) { device_detach: - for (rc = 0; rc < GS_MAX_INTF; rc++) { + for (rc = 0; rc < parent->channel_cnt; rc++) { if (parent->canch[rc]) netif_device_detach(parent->canch[rc]->netdev); } @@ -1460,17 +1456,19 @@ static int gs_usb_probe(struct usb_interface *intf, icount = dconf.icount + 1; dev_info(&intf->dev, "Configuring for %u interfaces\n", icount); - if (icount > GS_MAX_INTF) { + if (icount > type_max(parent->channel_cnt)) { dev_err(&intf->dev, "Driver cannot handle more that %u CAN interfaces\n", - GS_MAX_INTF); + type_max(parent->channel_cnt)); return -EINVAL; } - parent = kzalloc(sizeof(*parent), GFP_KERNEL); + parent = kzalloc(struct_size(parent, canch, icount), GFP_KERNEL); if (!parent) return -ENOMEM; + parent->channel_cnt = icount; + init_usb_anchor(&parent->rx_submitted); usb_set_intfdata(intf, parent); @@ -1531,7 +1529,7 @@ static void gs_usb_disconnect(struct usb_interface *intf) return; } - for (i = 0; i < GS_MAX_INTF; i++) + for (i = 0; i < parent->channel_cnt; i++) if (parent->canch[i]) gs_destroy_candev(parent->canch[i]); --- base-commit: e5f0a698b34ed76002dc5cff3804a61c80233a7a change-id: 20250929-gs-usb-max-if-a304c83243e5 Best regards, -- Celeste Liu <uwu(a)coelacanthus.name>

1 month

2
1
0 0

[PATCH] net/can/gs_usb: populate net_device->dev_port

by Celeste Liu

The gs_usb driver supports USB devices with more than 1 CAN channel. In old kernel before 3.15, it uses net_device->dev_id to distinguish different channel in userspace, which was done in commit acff76fa45b4 ("can: gs_usb: gs_make_candev(): set netdev->dev_id"). But since 3.15, the correct way is populating net_device->dev_port. And according to documentation, if network device support multiple interface, lack of net_device->dev_port SHALL be treated as a bug. Fixes: acff76fa45b4 ("can: gs_usb: gs_make_candev(): set netdev->dev_id") Cc: stable(a)vger.kernel.org Signed-off-by: Celeste Liu <uwu(a)coelacanthus.name> --- drivers/net/can/usb/gs_usb.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/can/usb/gs_usb.c b/drivers/net/can/usb/gs_usb.c index c9482d6e947b0c7b033dc4f0c35f5b111e1bfd92..7ee68b47b569a142ffed3981edcaa9a1943ef0c2 100644 --- a/drivers/net/can/usb/gs_usb.c +++ b/drivers/net/can/usb/gs_usb.c @@ -1249,6 +1249,7 @@ static struct gs_can *gs_make_candev(unsigned int channel, netdev->flags |= IFF_ECHO; /* we support full roundtrip echo */ netdev->dev_id = channel; + netdev->dev_port = channel; /* dev setup */ strcpy(dev->bt_const.name, KBUILD_MODNAME); --- base-commit: 30d4efb2f5a515a60fe6b0ca85362cbebea21e2f change-id: 20250930-gs-usb-populate-net_device-dev_port-941f2d1c3889 Best regards, -- Celeste Liu <uwu(a)coelacanthus.name>

1 month

2
1
0 0

[PATCH v2 00/13 6.1.y] Backport minmax.h updates from v6.17-rc7

by Eliav Farber

This series backports 13 patches to update minmax.h in the 6.1.y branch, aligning it with v6.17-rc7. The ultimate goal is to synchronize all longterm branches so that they include the full set of minmax.h changes (6.12.y was already aligned and 6.6.y is in progress). The key motivation is to bring in commit d03eba99f5bf ("minmax: allow min()/max()/clamp() if the arguments have the same signedness"), which is missing in older kernels. In mainline, this change enables min()/max()/clamp() to accept mixed argument types, provided both have the same signedness. Without it, backported patches that use these forms may trigger compiler warnings, which escalate to build failures when -Werror is enabled. Changes between v1 and v2: - v1 included 19 patches: https://lore.kernel.org/stable/20250924202320.32333-1-farbere@amazon.com/ - First 6 were pushed to the stable-tree. - 7th cauded amd driver's build to fail. - This change fixes it. - Modified files: drivers/gpu/drm/amd/amdgpu/amdgpu.h drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c David Laight (7): minmax.h: add whitespace around operators and after commas minmax.h: update some comments minmax.h: reduce the #define expansion of min(), max() and clamp() minmax.h: use BUILD_BUG_ON_MSG() for the lo < hi test in clamp() minmax.h: move all the clamp() definitions after the min/max() ones minmax.h: simplify the variants of clamp() minmax.h: remove some #defines that are only expanded once Linus Torvalds (6): minmax: make generic MIN() and MAX() macros available everywhere minmax: add a few more MIN_T/MAX_T users minmax: simplify min()/max()/clamp() implementation minmax: don't use max() in situations that want a C constant expression minmax: improve macro expansion and type checking minmax: fix up min3() and max3() too arch/um/drivers/mconsole_user.c | 2 + arch/x86/mm/pgtable.c | 2 +- drivers/edac/sb_edac.c | 4 +- drivers/edac/skx_common.h | 1 - drivers/gpu/drm/amd/amdgpu/amdgpu.h | 2 + .../drm/amd/display/modules/hdcp/hdcp_ddc.c | 2 + .../drm/amd/pm/powerplay/hwmgr/ppevvmath.h | 14 +- .../amd/pm/swsmu/smu11/sienna_cichlid_ppt.c | 2 + .../drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c | 3 + .../drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c | 3 + drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c | 2 +- drivers/gpu/drm/drm_color_mgmt.c | 2 +- drivers/gpu/drm/radeon/evergreen_cs.c | 2 + drivers/hwmon/adt7475.c | 24 +- drivers/input/touchscreen/cyttsp4_core.c | 2 +- drivers/irqchip/irq-sun6i-r.c | 2 +- drivers/md/dm-integrity.c | 2 +- drivers/media/dvb-frontends/stv0367_priv.h | 3 + .../net/ethernet/stmicro/stmmac/stmmac_main.c | 2 +- drivers/net/fjes/fjes_main.c | 4 +- drivers/nfc/pn544/i2c.c | 2 - drivers/platform/x86/sony-laptop.c | 1 - drivers/scsi/isci/init.c | 6 +- .../pci/hive_isp_css_include/math_support.h | 5 - fs/btrfs/tree-checker.c | 2 +- include/linux/compiler.h | 9 + include/linux/minmax.h | 220 ++++++++++-------- kernel/trace/preemptirq_delay_test.c | 2 - lib/btree.c | 1 - lib/decompress_unlzma.c | 2 + lib/vsprintf.c | 2 +- mm/zsmalloc.c | 1 - net/ipv4/proc.c | 2 +- net/ipv6/proc.c | 2 +- tools/testing/selftests/seccomp/seccomp_bpf.c | 2 + tools/testing/selftests/vm/mremap_test.c | 2 + 36 files changed, 199 insertions(+), 142 deletions(-) -- 2.47.3

1 month

3
15
0 0

[PATCH v2 00/12 6.6.y] Backport minmax.h updates from v6.17-rc7

by Eliav Farber

This series backports 15 patches to update minmax.h in the 6.6.y branch, aligning it with v6.17-rc7. The ultimate goal is to synchronize all longterm branches so that they include the full set of minmax.h changes. The key motivation is to bring in commit d03eba99f5bf ("minmax: allow min()/max()/clamp() if the arguments have the same signedness"), which is missing in older kernels. In mainline, this change enables min()/max()/clamp() to accept mixed argument types, provided both have the same signedness. Without it, backported patches that use these forms may trigger compiler warnings, which escalate to build failures when -Werror is enabled. Changes between v1 and v2: - v1 included 15 patches: https://lore.kernel.org/stable/20250922103241.16213-1-farbere@amazon.com/T/… - First 3 were pushed to the stable-tree. - 4th cauded amd driver's build to fail. - This change fixes it. - Modified files: drivers/gpu/drm/amd/amdgpu/amdgpu.h drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c David Laight (7): minmax.h: add whitespace around operators and after commas minmax.h: update some comments minmax.h: reduce the #define expansion of min(), max() and clamp() minmax.h: use BUILD_BUG_ON_MSG() for the lo < hi test in clamp() minmax.h: move all the clamp() definitions after the min/max() ones minmax.h: simplify the variants of clamp() minmax.h: remove some #defines that are only expanded once Linus Torvalds (5): minmax: make generic MIN() and MAX() macros available everywhere minmax: simplify min()/max()/clamp() implementation minmax: don't use max() in situations that want a C constant expression minmax: improve macro expansion and type checking minmax: fix up min3() and max3() too arch/um/drivers/mconsole_user.c | 2 + drivers/edac/skx_common.h | 1 - drivers/gpu/drm/amd/amdgpu/amdgpu.h | 2 + .../drm/amd/display/modules/hdcp/hdcp_ddc.c | 2 + .../drm/amd/pm/powerplay/hwmgr/ppevvmath.h | 14 +- .../amd/pm/swsmu/smu11/sienna_cichlid_ppt.c | 2 + .../drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c | 3 + .../drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c | 3 + drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c | 2 +- drivers/gpu/drm/radeon/evergreen_cs.c | 2 + drivers/hwmon/adt7475.c | 24 +- drivers/input/touchscreen/cyttsp4_core.c | 2 +- drivers/irqchip/irq-sun6i-r.c | 2 +- drivers/media/dvb-frontends/stv0367_priv.h | 3 + .../net/can/usb/etas_es58x/es58x_devlink.c | 2 +- drivers/net/fjes/fjes_main.c | 4 +- drivers/nfc/pn544/i2c.c | 2 - drivers/platform/x86/sony-laptop.c | 1 - drivers/scsi/isci/init.c | 6 +- .../pci/hive_isp_css_include/math_support.h | 5 - fs/btrfs/tree-checker.c | 2 +- include/linux/compiler.h | 9 + include/linux/minmax.h | 220 ++++++++++-------- kernel/trace/preemptirq_delay_test.c | 2 - lib/btree.c | 1 - lib/decompress_unlzma.c | 2 + lib/vsprintf.c | 2 +- mm/zsmalloc.c | 2 - tools/testing/selftests/mm/mremap_test.c | 2 + tools/testing/selftests/seccomp/seccomp_bpf.c | 2 + 30 files changed, 192 insertions(+), 136 deletions(-) -- 2.47.3

1 month

2
13
0 0

[PATCH] Revert "usb: xhci: remove option to change a default ring's TRB cycle bit"

by Niklas Neronin

Revert 9b28ef1e4cc0 [ Upstream commit e1b0fa863907 ], it causes regression in 6.12.49 stable, no issues in upstream. Commit 9b28ef1e4cc0 ("usb: xhci: remove option to change a default ring's TRB cycle bit") introduced a regression in 6.12.49 stable kernel. The original commit was never intended for stable kernels, but was added as a dependency for commit a5c98e8b1398 ("xhci: dbc: Fix full DbC transfer ring after several reconnects"). Since this commit is more of an optimization, revert it and solve the dependecy by modifying one line in xhci_dbc_ring_init(). Specifically, commit a5c98e8b1398 ("xhci: dbc: Fix full DbC transfer ring after several reconnects") moved function call xhci_initialize_ring_info() into a separate function. To resolve the dependency, the arguments for this function call are also reverted. Closes: https://lore.kernel.org/stable/01b8c8de46251cfaad1329a46b7e3738@stwm.de/ Tested-by: Wolfgang Walter <linux(a)stwm.de> Cc: stable(a)vger.kernel.org # v6.12.49 Signed-off-by: Niklas Neronin <niklas.neronin(a)linux.intel.com> --- drivers/usb/host/xhci-dbgcap.c | 2 +- drivers/usb/host/xhci-mem.c | 50 ++++++++++++++++++---------------- drivers/usb/host/xhci.c | 2 +- drivers/usb/host/xhci.h | 6 ++-- 4 files changed, 33 insertions(+), 27 deletions(-) diff --git a/drivers/usb/host/xhci-dbgcap.c b/drivers/usb/host/xhci-dbgcap.c index 1fcc9348dd43..123506681ef0 100644 --- a/drivers/usb/host/xhci-dbgcap.c +++ b/drivers/usb/host/xhci-dbgcap.c @@ -458,7 +458,7 @@ static void xhci_dbc_ring_init(struct xhci_ring *ring) trb->link.segment_ptr = cpu_to_le64(ring->first_seg->dma); trb->link.control = cpu_to_le32(LINK_TOGGLE | TRB_TYPE(TRB_LINK)); } - xhci_initialize_ring_info(ring); + xhci_initialize_ring_info(ring, 1); } static int xhci_dbc_reinit_ep_rings(struct xhci_dbc *dbc) diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index c9694526b157..f0ed38da6a0c 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -27,12 +27,14 @@ * "All components of all Command and Transfer TRBs shall be initialized to '0'" */ static struct xhci_segment *xhci_segment_alloc(struct xhci_hcd *xhci, + unsigned int cycle_state, unsigned int max_packet, unsigned int num, gfp_t flags) { struct xhci_segment *seg; dma_addr_t dma; + int i; struct device *dev = xhci_to_hcd(xhci)->self.sysdev; seg = kzalloc_node(sizeof(*seg), flags, dev_to_node(dev)); @@ -54,6 +56,11 @@ static struct xhci_segment *xhci_segment_alloc(struct xhci_hcd *xhci, return NULL; } } + /* If the cycle state is 0, set the cycle bit to 1 for all the TRBs */ + if (cycle_state == 0) { + for (i = 0; i < TRBS_PER_SEGMENT; i++) + seg->trbs[i].link.control = cpu_to_le32(TRB_CYCLE); + } seg->num = num; seg->dma = dma; seg->next = NULL; @@ -131,14 +138,6 @@ static void xhci_link_rings(struct xhci_hcd *xhci, struct xhci_ring *ring, chain_links = xhci_link_chain_quirk(xhci, ring->type); - /* If the cycle state is 0, set the cycle bit to 1 for all the TRBs */ - if (ring->cycle_state == 0) { - xhci_for_each_ring_seg(ring->first_seg, seg) { - for (int i = 0; i < TRBS_PER_SEGMENT; i++) - seg->trbs[i].link.control |= cpu_to_le32(TRB_CYCLE); - } - } - next = ring->enq_seg->next; xhci_link_segments(ring->enq_seg, first, ring->type, chain_links); xhci_link_segments(last, next, ring->type, chain_links); @@ -288,7 +287,8 @@ void xhci_ring_free(struct xhci_hcd *xhci, struct xhci_ring *ring) kfree(ring); } -void xhci_initialize_ring_info(struct xhci_ring *ring) +void xhci_initialize_ring_info(struct xhci_ring *ring, + unsigned int cycle_state) { /* The ring is empty, so the enqueue pointer == dequeue pointer */ ring->enqueue = ring->first_seg->trbs; @@ -302,7 +302,7 @@ void xhci_initialize_ring_info(struct xhci_ring *ring) * New rings are initialized with cycle state equal to 1; if we are * handling ring expansion, set the cycle state equal to the old ring. */ - ring->cycle_state = 1; + ring->cycle_state = cycle_state; /* * Each segment has a link TRB, and leave an extra TRB for SW @@ -317,6 +317,7 @@ static int xhci_alloc_segments_for_ring(struct xhci_hcd *xhci, struct xhci_segment **first, struct xhci_segment **last, unsigned int num_segs, + unsigned int cycle_state, enum xhci_ring_type type, unsigned int max_packet, gfp_t flags) @@ -327,7 +328,7 @@ static int xhci_alloc_segments_for_ring(struct xhci_hcd *xhci, chain_links = xhci_link_chain_quirk(xhci, type); - prev = xhci_segment_alloc(xhci, max_packet, num, flags); + prev = xhci_segment_alloc(xhci, cycle_state, max_packet, num, flags); if (!prev) return -ENOMEM; num++; @@ -336,7 +337,8 @@ static int xhci_alloc_segments_for_ring(struct xhci_hcd *xhci, while (num < num_segs) { struct xhci_segment *next; - next = xhci_segment_alloc(xhci, max_packet, num, flags); + next = xhci_segment_alloc(xhci, cycle_state, max_packet, num, + flags); if (!next) goto free_segments; @@ -361,8 +363,9 @@ static int xhci_alloc_segments_for_ring(struct xhci_hcd *xhci, * Set the end flag and the cycle toggle bit on the last segment. * See section 4.9.1 and figures 15 and 16. */ -struct xhci_ring *xhci_ring_alloc(struct xhci_hcd *xhci, unsigned int num_segs, - enum xhci_ring_type type, unsigned int max_packet, gfp_t flags) +struct xhci_ring *xhci_ring_alloc(struct xhci_hcd *xhci, + unsigned int num_segs, unsigned int cycle_state, + enum xhci_ring_type type, unsigned int max_packet, gfp_t flags) { struct xhci_ring *ring; int ret; @@ -380,7 +383,7 @@ struct xhci_ring *xhci_ring_alloc(struct xhci_hcd *xhci, unsigned int num_segs, return ring; ret = xhci_alloc_segments_for_ring(xhci, &ring->first_seg, &ring->last_seg, num_segs, - type, max_packet, flags); + cycle_state, type, max_packet, flags); if (ret) goto fail; @@ -390,7 +393,7 @@ struct xhci_ring *xhci_ring_alloc(struct xhci_hcd *xhci, unsigned int num_segs, ring->last_seg->trbs[TRBS_PER_SEGMENT - 1].link.control |= cpu_to_le32(LINK_TOGGLE); } - xhci_initialize_ring_info(ring); + xhci_initialize_ring_info(ring, cycle_state); trace_xhci_ring_alloc(ring); return ring; @@ -418,8 +421,8 @@ int xhci_ring_expansion(struct xhci_hcd *xhci, struct xhci_ring *ring, struct xhci_segment *last; int ret; - ret = xhci_alloc_segments_for_ring(xhci, &first, &last, num_new_segs, ring->type, - ring->bounce_buf_len, flags); + ret = xhci_alloc_segments_for_ring(xhci, &first, &last, num_new_segs, ring->cycle_state, + ring->type, ring->bounce_buf_len, flags); if (ret) return -ENOMEM; @@ -629,7 +632,8 @@ struct xhci_stream_info *xhci_alloc_stream_info(struct xhci_hcd *xhci, for (cur_stream = 1; cur_stream < num_streams; cur_stream++) { stream_info->stream_rings[cur_stream] = - xhci_ring_alloc(xhci, 2, TYPE_STREAM, max_packet, mem_flags); + xhci_ring_alloc(xhci, 2, 1, TYPE_STREAM, max_packet, + mem_flags); cur_ring = stream_info->stream_rings[cur_stream]; if (!cur_ring) goto cleanup_rings; @@ -970,7 +974,7 @@ int xhci_alloc_virt_device(struct xhci_hcd *xhci, int slot_id, } /* Allocate endpoint 0 ring */ - dev->eps[0].ring = xhci_ring_alloc(xhci, 2, TYPE_CTRL, 0, flags); + dev->eps[0].ring = xhci_ring_alloc(xhci, 2, 1, TYPE_CTRL, 0, flags); if (!dev->eps[0].ring) goto fail; @@ -1453,7 +1457,7 @@ int xhci_endpoint_init(struct xhci_hcd *xhci, /* Set up the endpoint ring */ virt_dev->eps[ep_index].new_ring = - xhci_ring_alloc(xhci, 2, ring_type, max_packet, mem_flags); + xhci_ring_alloc(xhci, 2, 1, ring_type, max_packet, mem_flags); if (!virt_dev->eps[ep_index].new_ring) return -ENOMEM; @@ -2262,7 +2266,7 @@ xhci_alloc_interrupter(struct xhci_hcd *xhci, unsigned int segs, gfp_t flags) if (!ir) return NULL; - ir->event_ring = xhci_ring_alloc(xhci, segs, TYPE_EVENT, 0, flags); + ir->event_ring = xhci_ring_alloc(xhci, segs, 1, TYPE_EVENT, 0, flags); if (!ir->event_ring) { xhci_warn(xhci, "Failed to allocate interrupter event ring\n"); kfree(ir); @@ -2468,7 +2472,7 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) goto fail; /* Set up the command ring to have one segments for now. */ - xhci->cmd_ring = xhci_ring_alloc(xhci, 1, TYPE_COMMAND, 0, flags); + xhci->cmd_ring = xhci_ring_alloc(xhci, 1, 1, TYPE_COMMAND, 0, flags); if (!xhci->cmd_ring) goto fail; xhci_dbg_trace(xhci, trace_xhci_dbg_init, diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 3970ec831b8c..abbf89e82d01 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -769,7 +769,7 @@ static void xhci_clear_command_ring(struct xhci_hcd *xhci) seg->trbs[TRBS_PER_SEGMENT - 1].link.control &= cpu_to_le32(~TRB_CYCLE); } - xhci_initialize_ring_info(ring); + xhci_initialize_ring_info(ring, 1); /* * Reset the hardware dequeue pointer. * Yes, this will need to be re-written after resume, but we're paranoid diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index b2aeb444daaf..b4fa8e7e4376 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1803,12 +1803,14 @@ void xhci_slot_copy(struct xhci_hcd *xhci, int xhci_endpoint_init(struct xhci_hcd *xhci, struct xhci_virt_device *virt_dev, struct usb_device *udev, struct usb_host_endpoint *ep, gfp_t mem_flags); -struct xhci_ring *xhci_ring_alloc(struct xhci_hcd *xhci, unsigned int num_segs, +struct xhci_ring *xhci_ring_alloc(struct xhci_hcd *xhci, + unsigned int num_segs, unsigned int cycle_state, enum xhci_ring_type type, unsigned int max_packet, gfp_t flags); void xhci_ring_free(struct xhci_hcd *xhci, struct xhci_ring *ring); int xhci_ring_expansion(struct xhci_hcd *xhci, struct xhci_ring *ring, unsigned int num_trbs, gfp_t flags); -void xhci_initialize_ring_info(struct xhci_ring *ring); +void xhci_initialize_ring_info(struct xhci_ring *ring, + unsigned int cycle_state); void xhci_free_endpoint_ring(struct xhci_hcd *xhci, struct xhci_virt_device *virt_dev, unsigned int ep_index); -- 2.50.1

1 month

3
2
0 0

[PATCH] mm/ksm: fix flag-dropping behavior in ksm_madvise

by Jakub Acs

syzkaller discovered the following crash: (kernel BUG) [ 44.607039] ------------[ cut here ]------------ [ 44.607422] kernel BUG at mm/userfaultfd.c:2067! [ 44.608148] Oops: invalid opcode: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN NOPTI [ 44.608814] CPU: 1 UID: 0 PID: 2475 Comm: reproducer Not tainted 6.16.0-rc6 #1 PREEMPT(none) [ 44.609635] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 44.610695] RIP: 0010:userfaultfd_release_all+0x3a8/0x460 <snip other registers, drop unreliable trace> [ 44.617726] Call Trace: [ 44.617926] <TASK> [ 44.619284] userfaultfd_release+0xef/0x1b0 [ 44.620976] __fput+0x3f9/0xb60 [ 44.621240] fput_close_sync+0x110/0x210 [ 44.622222] __x64_sys_close+0x8f/0x120 [ 44.622530] do_syscall_64+0x5b/0x2f0 [ 44.622840] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 44.623244] RIP: 0033:0x7f365bb3f227 Kernel panics because it detects UFFD inconsistency during userfaultfd_release_all(). Specifically, a VMA which has a valid pointer to vma->vm_userfaultfd_ctx, but no UFFD flags in vma->vm_flags. The inconsistency is caused in ksm_madvise(): when user calls madvise() with MADV_UNMEARGEABLE on a VMA that is registered for UFFD in MINOR mode, it accidentally clears all flags stored in the upper 32 bits of vma->vm_flags. Assuming x86_64 kernel build, unsigned long is 64-bit and unsigned int and int are 32-bit wide. This setup causes the following mishap during the &= ~VM_MERGEABLE assignment. VM_MERGEABLE is a 32-bit constant of type unsigned int, 0x8000'0000. After ~ is applied, it becomes 0x7fff'ffff unsigned int, which is then promoted to unsigned long before the & operation. This promotion fills upper 32 bits with leading 0s, as we're doing unsigned conversion (and even for a signed conversion, this wouldn't help as the leading bit is 0). & operation thus ends up AND-ing vm_flags with 0x0000'0000'7fff'ffff instead of intended 0xffff'ffff'7fff'ffff and hence accidentally clears the upper 32-bits of its value. Fix it by casting `VM_MERGEABLE` constant to unsigned long to preserve the upper 32 bits, in case it's needed. Note: other VM_* flags are not affected: This only happens to the VM_MERGEABLE flag, as the other VM_* flags are all constants of type int and after ~ operation, they end up with leading 1 and are thus converted to unsigned long with leading 1s. Note 2: After commit 31defc3b01d9 ("userfaultfd: remove (VM_)BUG_ON()s"), this is no longer a kernel BUG, but a WARNING at the same place: [ 45.595973] WARNING: CPU: 1 PID: 2474 at mm/userfaultfd.c:2067 but the root-cause (flag-drop) remains the same. Fixes: 7677f7fd8be76 ("userfaultfd: add minor fault registration mode") Signed-off-by: Jakub Acs <acsjakub(a)amazon.de> Cc: Andrew Morton <akpm(a)linux-foundation.org> Cc: David Hildenbrand <david(a)redhat.com> Cc: Xu Xin <xu.xin16(a)zte.com.cn> Cc: Chengming Zhou <chengming.zhou(a)linux.dev> Cc: Peter Xu <peterx(a)redhat.com> Cc: Axel Rasmussen <axelrasmussen(a)google.com> Cc: Mike Kravetz <mike.kravetz(a)oracle.com> Cc: linux-mm(a)kvack.org Cc: linux-kernel(a)vger.kernel.org Cc: stable(a)vger.kernel.org --- I looked around the kernel and found one more flag that might be causing similar issues: "IORESOURCE_BUSY" - as its inverted version is bit-anded to unsigned long fields. However, it seems those fields don't actually use any bits from upper 32-bits as flags (yet?). I also considered changing the constant definition by adding ULL, but am not sure where else that could blow up, plus it would likely call to define all the related constants as ULL for consistency. If you'd prefer that fix, let me know. mm/ksm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/ksm.c b/mm/ksm.c index 160787bb121c..c24137a1eeb7 100644 --- a/mm/ksm.c +++ b/mm/ksm.c @@ -2871,7 +2871,7 @@ int ksm_madvise(struct vm_area_struct *vma, unsigned long start, return err; } - *vm_flags &= ~VM_MERGEABLE; + *vm_flags &= ~((unsigned long) VM_MERGEABLE); break; } -- 2.47.3 Amazon Web Services Development Center Germany GmbH Tamara-Danz-Str. 13 10243 Berlin Geschaeftsfuehrung: Christian Schlaeger Eingetragen am Amtsgericht Charlottenburg unter HRB 257764 B Sitz: Berlin Ust-ID: DE 365 538 597

1 month

2
2
0 0

Quotation Request

by Jane

1 month

1
0
0 0

[PATCH v4] net/can/gs_usb: increase max interface to U8_MAX

by Celeste Liu

This issue was found by Runcheng Lu when develop HSCanT USB to CAN FD converter[1]. The original developers may have only 3 interfaces device to test so they write 3 here and wait for future change. During the HSCanT development, we actually used 4 interfaces, so the limitation of 3 is not enough now. But just increase one is not future-proofed. Since the channel type in gs_host_frame is u8, just increase interface number limit to max size of u8 safely. [1]: https://github.com/cherry-embedded/HSCanT-hardware Fixes: d08e973a77d1 ("can: gs_usb: Added support for the GS_USB CAN devices") Reported-by: Runcheng Lu <runcheng.lu(a)hpmicro.com> Cc: stable(a)vger.kernel.org Reviewed-by: Vincent Mailhol <mailhol(a)kernel.org> Signed-off-by: Celeste Liu <uwu(a)coelacanthus.name> --- Changes in v4: - Remove redudant typeof(). - Fix type: inteface -> interface. - Link to v3: https://lore.kernel.org/r/20250930-gs-usb-max-if-v3-1-21d97d7f1c34@coelacan… Changes in v3: - Cc stable should in patch instead of cover letter. - Link to v2: https://lore.kernel.org/r/20250930-gs-usb-max-if-v2-1-2cf9a44e6861@coelacan… Changes in v2: - Use flexible array member instead of fixed array. - Link to v1: https://lore.kernel.org/r/20250929-gs-usb-max-if-v1-1-e41b5c09133a@coelacan… --- drivers/net/can/usb/gs_usb.c | 22 ++++++++++------------ 1 file changed, 10 insertions(+), 12 deletions(-) diff --git a/drivers/net/can/usb/gs_usb.c b/drivers/net/can/usb/gs_usb.c index c9482d6e947b0c7b033dc4f0c35f5b111e1bfd92..9fb4cbbd6d6dc88f433020eb0417ea53cd0c4d5f 100644 --- a/drivers/net/can/usb/gs_usb.c +++ b/drivers/net/can/usb/gs_usb.c @@ -289,11 +289,6 @@ struct gs_host_frame { #define GS_MAX_RX_URBS 30 #define GS_NAPI_WEIGHT 32 -/* Maximum number of interfaces the driver supports per device. - * Current hardware only supports 3 interfaces. The future may vary. - */ -#define GS_MAX_INTF 3 - struct gs_tx_context { struct gs_can *dev; unsigned int echo_id; @@ -324,7 +319,6 @@ struct gs_can { /* usb interface struct */ struct gs_usb { - struct gs_can *canch[GS_MAX_INTF]; struct usb_anchor rx_submitted; struct usb_device *udev; @@ -336,9 +330,11 @@ struct gs_usb { unsigned int hf_size_rx; u8 active_channels; + u8 channel_cnt; unsigned int pipe_in; unsigned int pipe_out; + struct gs_can *canch[] __counted_by(channel_cnt); }; /* 'allocate' a tx context. @@ -599,7 +595,7 @@ static void gs_usb_receive_bulk_callback(struct urb *urb) } /* device reports out of range channel id */ - if (hf->channel >= GS_MAX_INTF) + if (hf->channel >= parent->channel_cnt) goto device_detach; dev = parent->canch[hf->channel]; @@ -699,7 +695,7 @@ static void gs_usb_receive_bulk_callback(struct urb *urb) /* USB failure take down all interfaces */ if (rc == -ENODEV) { device_detach: - for (rc = 0; rc < GS_MAX_INTF; rc++) { + for (rc = 0; rc < parent->channel_cnt; rc++) { if (parent->canch[rc]) netif_device_detach(parent->canch[rc]->netdev); } @@ -1460,17 +1456,19 @@ static int gs_usb_probe(struct usb_interface *intf, icount = dconf.icount + 1; dev_info(&intf->dev, "Configuring for %u interfaces\n", icount); - if (icount > GS_MAX_INTF) { + if (icount > type_max(parent->channel_cnt)) { dev_err(&intf->dev, "Driver cannot handle more that %u CAN interfaces\n", - GS_MAX_INTF); + type_max(parent->channel_cnt)); return -EINVAL; } - parent = kzalloc(sizeof(*parent), GFP_KERNEL); + parent = kzalloc(struct_size(parent, canch, icount), GFP_KERNEL); if (!parent) return -ENOMEM; + parent->channel_cnt = icount; + init_usb_anchor(&parent->rx_submitted); usb_set_intfdata(intf, parent); @@ -1531,7 +1529,7 @@ static void gs_usb_disconnect(struct usb_interface *intf) return; } - for (i = 0; i < GS_MAX_INTF; i++) + for (i = 0; i < parent->channel_cnt; i++) if (parent->canch[i]) gs_destroy_candev(parent->canch[i]); --- base-commit: e5f0a698b34ed76002dc5cff3804a61c80233a7a change-id: 20250929-gs-usb-max-if-a304c83243e5 Best regards, -- Celeste Liu <uwu(a)coelacanthus.name>

1 month

2
2
0 0

[PATCH v4 1/1] mm/rmap: fix soft-dirty and uffd-wp bit loss when remapping zero-filled mTHP subpage to shared zeropage

by Lance Yang

From: Lance Yang <lance.yang(a)linux.dev> When splitting an mTHP and replacing a zero-filled subpage with the shared zeropage, try_to_map_unused_to_zeropage() currently drops several important PTE bits. For userspace tools like CRIU, which rely on the soft-dirty mechanism for incremental snapshots, losing the soft-dirty bit means modified pages are missed, leading to inconsistent memory state after restore. As pointed out by David, the more critical uffd-wp bit is also dropped. This breaks the userfaultfd write-protection mechanism, causing writes to be silently missed by monitoring applications, which can lead to data corruption. Preserve both the soft-dirty and uffd-wp bits from the old PTE when creating the new zeropage mapping to ensure they are correctly tracked. Cc: <stable(a)vger.kernel.org> Fixes: b1f202060afe ("mm: remap unused subpages to shared zeropage when splitting isolated thp") Suggested-by: David Hildenbrand <david(a)redhat.com> Suggested-by: Dev Jain <dev.jain(a)arm.com> Acked-by: David Hildenbrand <david(a)redhat.com> Reviewed-by: Dev Jain <dev.jain(a)arm.com> Signed-off-by: Lance Yang <lance.yang(a)linux.dev> --- v3 -> v4: - Minor formatting tweak in try_to_map_unused_to_zeropage() function signature (per David and Dev) - Collect Reviewed-by from Dev - thanks! - https://lore.kernel.org/linux-mm/20250930060557.85133-1-lance.yang@linux.de… v2 -> v3: - ptep_get() gets called only once per iteration (per Dev) - https://lore.kernel.org/linux-mm/20250930043351.34927-1-lance.yang@linux.de… v1 -> v2: - Avoid calling ptep_get() multiple times (per Dev) - Double-check the uffd-wp bit (per David) - Collect Acked-by from David - thanks! - https://lore.kernel.org/linux-mm/20250928044855.76359-1-lance.yang@linux.de… mm/migrate.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/mm/migrate.c b/mm/migrate.c index ce83c2c3c287..21a2a1bf89f7 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -296,8 +296,7 @@ bool isolate_folio_to_list(struct folio *folio, struct list_head *list) } static bool try_to_map_unused_to_zeropage(struct page_vma_mapped_walk *pvmw, - struct folio *folio, - unsigned long idx) + struct folio *folio, pte_t old_pte, unsigned long idx) { struct page *page = folio_page(folio, idx); pte_t newpte; @@ -306,7 +305,7 @@ static bool try_to_map_unused_to_zeropage(struct page_vma_mapped_walk *pvmw, return false; VM_BUG_ON_PAGE(!PageAnon(page), page); VM_BUG_ON_PAGE(!PageLocked(page), page); - VM_BUG_ON_PAGE(pte_present(ptep_get(pvmw->pte)), page); + VM_BUG_ON_PAGE(pte_present(old_pte), page); if (folio_test_mlocked(folio) || (pvmw->vma->vm_flags & VM_LOCKED) || mm_forbids_zeropage(pvmw->vma->vm_mm)) @@ -322,6 +321,12 @@ static bool try_to_map_unused_to_zeropage(struct page_vma_mapped_walk *pvmw, newpte = pte_mkspecial(pfn_pte(my_zero_pfn(pvmw->address), pvmw->vma->vm_page_prot)); + + if (pte_swp_soft_dirty(old_pte)) + newpte = pte_mksoft_dirty(newpte); + if (pte_swp_uffd_wp(old_pte)) + newpte = pte_mkuffd_wp(newpte); + set_pte_at(pvmw->vma->vm_mm, pvmw->address, pvmw->pte, newpte); dec_mm_counter(pvmw->vma->vm_mm, mm_counter(folio)); @@ -344,7 +349,7 @@ static bool remove_migration_pte(struct folio *folio, while (page_vma_mapped_walk(&pvmw)) { rmap_t rmap_flags = RMAP_NONE; - pte_t old_pte; + pte_t old_pte = ptep_get(pvmw.pte); pte_t pte; swp_entry_t entry; struct page *new; @@ -365,12 +370,11 @@ static bool remove_migration_pte(struct folio *folio, } #endif if (rmap_walk_arg->map_unused_to_zeropage && - try_to_map_unused_to_zeropage(&pvmw, folio, idx)) + try_to_map_unused_to_zeropage(&pvmw, folio, old_pte, idx)) continue; folio_get(folio); pte = mk_pte(new, READ_ONCE(vma->vm_page_prot)); - old_pte = ptep_get(pvmw.pte); entry = pte_to_swp_entry(old_pte); if (!is_migration_entry_young(entry)) -- 2.49.0

1 month

2
3
0 0

[PATCH v3 1/1] mm/rmap: fix soft-dirty and uffd-wp bit loss when remapping zero-filled mTHP subpage to shared zeropage

by Lance Yang

From: Lance Yang <lance.yang(a)linux.dev> When splitting an mTHP and replacing a zero-filled subpage with the shared zeropage, try_to_map_unused_to_zeropage() currently drops several important PTE bits. For userspace tools like CRIU, which rely on the soft-dirty mechanism for incremental snapshots, losing the soft-dirty bit means modified pages are missed, leading to inconsistent memory state after restore. As pointed out by David, the more critical uffd-wp bit is also dropped. This breaks the userfaultfd write-protection mechanism, causing writes to be silently missed by monitoring applications, which can lead to data corruption. Preserve both the soft-dirty and uffd-wp bits from the old PTE when creating the new zeropage mapping to ensure they are correctly tracked. Cc: <stable(a)vger.kernel.org> Fixes: b1f202060afe ("mm: remap unused subpages to shared zeropage when splitting isolated thp") Suggested-by: David Hildenbrand <david(a)redhat.com> Suggested-by: Dev Jain <dev.jain(a)arm.com> Acked-by: David Hildenbrand <david(a)redhat.com> Signed-off-by: Lance Yang <lance.yang(a)linux.dev> --- v2 -> v3: - ptep_get() gets called only once per iteration (per Dev) - https://lore.kernel.org/linux-mm/20250930043351.34927-1-lance.yang@linux.de… v1 -> v2: - Avoid calling ptep_get() multiple times (per Dev) - Double-check the uffd-wp bit (per David) - Collect Acked-by from David - thanks! - https://lore.kernel.org/linux-mm/20250928044855.76359-1-lance.yang@linux.de… mm/migrate.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/mm/migrate.c b/mm/migrate.c index ce83c2c3c287..bafd8cb3bebe 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -297,6 +297,7 @@ bool isolate_folio_to_list(struct folio *folio, struct list_head *list) static bool try_to_map_unused_to_zeropage(struct page_vma_mapped_walk *pvmw, struct folio *folio, + pte_t old_pte, unsigned long idx) { struct page *page = folio_page(folio, idx); @@ -306,7 +307,7 @@ static bool try_to_map_unused_to_zeropage(struct page_vma_mapped_walk *pvmw, return false; VM_BUG_ON_PAGE(!PageAnon(page), page); VM_BUG_ON_PAGE(!PageLocked(page), page); - VM_BUG_ON_PAGE(pte_present(ptep_get(pvmw->pte)), page); + VM_BUG_ON_PAGE(pte_present(old_pte), page); if (folio_test_mlocked(folio) || (pvmw->vma->vm_flags & VM_LOCKED) || mm_forbids_zeropage(pvmw->vma->vm_mm)) @@ -322,6 +323,12 @@ static bool try_to_map_unused_to_zeropage(struct page_vma_mapped_walk *pvmw, newpte = pte_mkspecial(pfn_pte(my_zero_pfn(pvmw->address), pvmw->vma->vm_page_prot)); + + if (pte_swp_soft_dirty(old_pte)) + newpte = pte_mksoft_dirty(newpte); + if (pte_swp_uffd_wp(old_pte)) + newpte = pte_mkuffd_wp(newpte); + set_pte_at(pvmw->vma->vm_mm, pvmw->address, pvmw->pte, newpte); dec_mm_counter(pvmw->vma->vm_mm, mm_counter(folio)); @@ -344,7 +351,7 @@ static bool remove_migration_pte(struct folio *folio, while (page_vma_mapped_walk(&pvmw)) { rmap_t rmap_flags = RMAP_NONE; - pte_t old_pte; + pte_t old_pte = ptep_get(pvmw.pte); pte_t pte; swp_entry_t entry; struct page *new; @@ -365,12 +372,11 @@ static bool remove_migration_pte(struct folio *folio, } #endif if (rmap_walk_arg->map_unused_to_zeropage && - try_to_map_unused_to_zeropage(&pvmw, folio, idx)) + try_to_map_unused_to_zeropage(&pvmw, folio, old_pte, idx)) continue; folio_get(folio); pte = mk_pte(new, READ_ONCE(vma->vm_page_prot)); - old_pte = ptep_get(pvmw.pte); entry = pte_to_swp_entry(old_pte); if (!is_migration_entry_young(entry)) -- 2.49.0

1 month

4
6
0 0

[PATCH 6.6.y] loop: Avoid updating block size under exclusive owner

by Zheng Qixing

From: Zheng Qixing <zhengqixing(a)huawei.com> From: Jan Kara <jack(a)suse.cz> [ Upstream commit 7e49538288e523427beedd26993d446afef1a6fb ] Syzbot came up with a reproducer where a loop device block size is changed underneath a mounted filesystem. This causes a mismatch between the block device block size and the block size stored in the superblock causing confusion in various places such as fs/buffer.c. The particular issue triggered by syzbot was a warning in __getblk_slow() due to requested buffer size not matching block device block size. Fix the problem by getting exclusive hold of the loop device to change its block size. This fails if somebody (such as filesystem) has already an exclusive ownership of the block device and thus prevents modifying the loop device under some exclusive owner which doesn't expect it. Reported-by: syzbot+01ef7a8da81a975e1ccd(a)syzkaller.appspotmail.com Signed-off-by: Jan Kara <jack(a)suse.cz> Tested-by: syzbot+01ef7a8da81a975e1ccd(a)syzkaller.appspotmail.com Link: https://lore.kernel.org/r/20250711163202.19623-2-jack@suse.cz Signed-off-by: Zheng Qixing <zhengqixing(a)huawei.com> --- drivers/block/loop.c | 40 +++++++++++++++++++++++++++++++--------- 1 file changed, 31 insertions(+), 9 deletions(-) diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 455e2a2b149f..6fe9180aafb3 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -1472,19 +1472,36 @@ static int loop_set_dio(struct loop_device *lo, unsigned long arg) return error; } -static int loop_set_block_size(struct loop_device *lo, unsigned long arg) +static int loop_set_block_size(struct loop_device *lo, blk_mode_t mode, + struct block_device *bdev, unsigned long arg) { int err = 0; - if (lo->lo_state != Lo_bound) - return -ENXIO; + /* + * If we don't hold exclusive handle for the device, upgrade to it + * here to avoid changing device under exclusive owner. + */ + if (!(mode & BLK_OPEN_EXCL)) { + err = bd_prepare_to_claim(bdev, loop_set_block_size, NULL); + if (err) + return err; + } + + err = mutex_lock_killable(&lo->lo_mutex); + if (err) + goto abort_claim; + + if (lo->lo_state != Lo_bound) { + err = -ENXIO; + goto unlock; + } err = blk_validate_block_size(arg); if (err) - return err; + goto unlock; if (lo->lo_queue->limits.logical_block_size == arg) - return 0; + goto unlock; sync_blockdev(lo->lo_device); invalidate_bdev(lo->lo_device); @@ -1496,6 +1513,11 @@ static int loop_set_block_size(struct loop_device *lo, unsigned long arg) loop_update_dio(lo); blk_mq_unfreeze_queue(lo->lo_queue); +unlock: + mutex_unlock(&lo->lo_mutex); +abort_claim: + if (!(mode & BLK_OPEN_EXCL)) + bd_abort_claiming(bdev, loop_set_block_size); return err; } @@ -1514,9 +1536,6 @@ static int lo_simple_ioctl(struct loop_device *lo, unsigned int cmd, case LOOP_SET_DIRECT_IO: err = loop_set_dio(lo, arg); break; - case LOOP_SET_BLOCK_SIZE: - err = loop_set_block_size(lo, arg); - break; default: err = -EINVAL; } @@ -1571,9 +1590,12 @@ static int lo_ioctl(struct block_device *bdev, blk_mode_t mode, break; case LOOP_GET_STATUS64: return loop_get_status64(lo, argp); + case LOOP_SET_BLOCK_SIZE: + if (!(mode & BLK_OPEN_WRITE) && !capable(CAP_SYS_ADMIN)) + return -EPERM; + return loop_set_block_size(lo, mode, bdev, arg); case LOOP_SET_CAPACITY: case LOOP_SET_DIRECT_IO: - case LOOP_SET_BLOCK_SIZE: if (!(mode & BLK_OPEN_WRITE) && !capable(CAP_SYS_ADMIN)) return -EPERM; fallthrough; -- 2.39.2

1 month

3
4
0 0

[PATCH v2] pinctrl: renesas: rzg2l: Fix ISEL restore on resume

by Claudiu

From: Claudiu Beznea <claudiu.beznea.uj(a)bp.renesas.com> Commit 1d2da79708cb ("pinctrl: renesas: rzg2l: Avoid configuring ISEL in gpio_irq_{en,dis}able*()") dropped the configuration of ISEL from struct irq_chip::{irq_enable, irq_disable} APIs and moved it to struct gpio_chip::irq::{child_to_parent_hwirq, child_irq_domain_ops::free} APIs to fix spurious IRQs. After commit 1d2da79708cb ("pinctrl: renesas: rzg2l: Avoid configuring ISEL in gpio_irq_{en,dis}able*()"), ISEL was no longer configured properly on resume. This is because the pinctrl resume code used struct irq_chip::irq_enable (called from rzg2l_gpio_irq_restore()) to reconfigure the wakeup interrupts. Some drivers (e.g. Ethernet) may also reconfigure non-wakeup interrupts on resume through their own code, eventually calling struct irq_chip::irq_enable. Fix this by adding ISEL configuration back into the struct irq_chip::irq_enable API and on resume path for wakeup interrupts. As struct irq_chip::irq_enable needs now to lock to update the ISEL, convert the struct rzg2l_pinctrl::lock to a raw spinlock and replace the locking API calls with the raw variants. Otherwise the lockdep reports invalid wait context when probing the adv7511 module on RZ/G2L: [ BUG: Invalid wait context ] 6.17.0-rc5-next-20250911-00001-gfcfac22533c9 #18 Not tainted ----------------------------- (udev-worker)/165 is trying to lock: ffff00000e3664a8 (&pctrl->lock){....}-{3:3}, at: rzg2l_gpio_irq_enable+0x38/0x78 other info that might help us debug this: context-{5:5} 3 locks held by (udev-worker)/165: #0: ffff00000e890108 (&dev->mutex){....}-{4:4}, at: __driver_attach+0x90/0x1ac #1: ffff000011c07240 (request_class){+.+.}-{4:4}, at: __setup_irq+0xb4/0x6dc #2: ffff000011c070c8 (lock_class){....}-{2:2}, at: __setup_irq+0xdc/0x6dc stack backtrace: CPU: 1 UID: 0 PID: 165 Comm: (udev-worker) Not tainted 6.17.0-rc5-next-20250911-00001-gfcfac22533c9 #18 PREEMPT Hardware name: Renesas SMARC EVK based on r9a07g044l2 (DT) Call trace: show_stack+0x18/0x24 (C) dump_stack_lvl+0x90/0xd0 dump_stack+0x18/0x24 __lock_acquire+0xa14/0x20b4 lock_acquire+0x1c8/0x354 _raw_spin_lock_irqsave+0x60/0x88 rzg2l_gpio_irq_enable+0x38/0x78 irq_enable+0x40/0x8c __irq_startup+0x78/0xa4 irq_startup+0x108/0x16c __setup_irq+0x3c0/0x6dc request_threaded_irq+0xec/0x1ac devm_request_threaded_irq+0x80/0x134 adv7511_probe+0x928/0x9a4 [adv7511] i2c_device_probe+0x22c/0x3dc really_probe+0xbc/0x2a0 __driver_probe_device+0x78/0x12c driver_probe_device+0x40/0x164 __driver_attach+0x9c/0x1ac bus_for_each_dev+0x74/0xd0 driver_attach+0x24/0x30 bus_add_driver+0xe4/0x208 driver_register+0x60/0x128 i2c_register_driver+0x48/0xd0 adv7511_init+0x5c/0x1000 [adv7511] do_one_initcall+0x64/0x30c do_init_module+0x58/0x23c load_module+0x1bcc/0x1d40 init_module_from_file+0x88/0xc4 idempotent_init_module+0x188/0x27c __arm64_sys_finit_module+0x68/0xac invoke_syscall+0x48/0x110 el0_svc_common.constprop.0+0xc0/0xe0 do_el0_svc+0x1c/0x28 el0_svc+0x4c/0x160 el0t_64_sync_handler+0xa0/0xe4 el0t_64_sync+0x198/0x19c Having ISEL configuration back into the struct irq_chip::irq_enable API should be safe with respect to spurious IRQs, as in the probe case IRQs are enabled anyway in struct gpio_chip::irq::child_to_parent_hwirq. No spurious IRQs were detected on suspend/resume, boot, ethernet link insert/remove tests (executed on RZ/G3S). Boot, ethernet link insert/remove tests were also executed successfully on RZ/G2L. Fixes: 1d2da79708cb ("pinctrl: renesas: rzg2l: Avoid configuring ISEL in gpio_irq_{en,dis}able*(") Cc: stable(a)vger.kernel.org Signed-off-by: Claudiu Beznea <claudiu.beznea.uj(a)bp.renesas.com> --- Changes in v2: - changed the implementation approach by dropping the spinlock in rzg2l_gpio_irq_endisable(), renaming it to __rzg2l_gpio_irq_endisable() and using it in rzg2l_gpio_irq_endisable(), the newly introduced __rzg2l_gpio_irq_enable() and rzg2l_gpio_irq_restore() - convert struct rzg2l_pinctrl::lock to raw_spinlock_t drivers/pinctrl/renesas/pinctrl-rzg2l.c | 71 +++++++++++++++---------- 1 file changed, 44 insertions(+), 27 deletions(-) diff --git a/drivers/pinctrl/renesas/pinctrl-rzg2l.c b/drivers/pinctrl/renesas/pinctrl-rzg2l.c index f524af6f586f..c360e473488c 100644 --- a/drivers/pinctrl/renesas/pinctrl-rzg2l.c +++ b/drivers/pinctrl/renesas/pinctrl-rzg2l.c @@ -359,7 +359,7 @@ struct rzg2l_pinctrl { spinlock_t bitmap_lock; /* protect tint_slot bitmap */ unsigned int hwirq[RZG2L_TINT_MAX_INTERRUPT]; - spinlock_t lock; /* lock read/write registers */ + raw_spinlock_t lock; /* lock read/write registers */ struct mutex mutex; /* serialize adding groups and functions */ struct rzg2l_pinctrl_pin_settings *settings; @@ -543,7 +543,7 @@ static void rzg2l_pinctrl_set_pfc_mode(struct rzg2l_pinctrl *pctrl, unsigned long flags; u32 reg; - spin_lock_irqsave(&pctrl->lock, flags); + raw_spin_lock_irqsave(&pctrl->lock, flags); /* Set pin to 'Non-use (Hi-Z input protection)' */ reg = readw(pctrl->base + PM(off)); @@ -567,7 +567,7 @@ static void rzg2l_pinctrl_set_pfc_mode(struct rzg2l_pinctrl *pctrl, pctrl->data->pwpr_pfc_lock_unlock(pctrl, true); - spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&pctrl->lock, flags); }; static int rzg2l_pinctrl_set_mux(struct pinctrl_dev *pctldev, @@ -882,10 +882,10 @@ static void rzg2l_rmw_pin_config(struct rzg2l_pinctrl *pctrl, u32 offset, addr += 4; } - spin_lock_irqsave(&pctrl->lock, flags); + raw_spin_lock_irqsave(&pctrl->lock, flags); reg = readl(addr) & ~(mask << (bit * 8)); writel(reg | (val << (bit * 8)), addr); - spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&pctrl->lock, flags); } static int rzg2l_caps_to_pwr_reg(const struct rzg2l_register_offsets *regs, u32 caps) @@ -1121,7 +1121,7 @@ static int rzg2l_write_oen(struct rzg2l_pinctrl *pctrl, unsigned int _pin, u8 oe if (bit < 0) return -EINVAL; - spin_lock_irqsave(&pctrl->lock, flags); + raw_spin_lock_irqsave(&pctrl->lock, flags); val = readb(pctrl->base + oen_offset); if (oen) val &= ~BIT(bit); @@ -1134,7 +1134,7 @@ static int rzg2l_write_oen(struct rzg2l_pinctrl *pctrl, unsigned int _pin, u8 oe writeb(val, pctrl->base + oen_offset); if (pctrl->data->hwcfg->oen_pwpr_lock) writeb(pwpr & ~PWPR_REGWE_B, pctrl->base + regs->pwpr); - spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&pctrl->lock, flags); return 0; } @@ -1687,14 +1687,14 @@ static int rzg2l_gpio_request(struct gpio_chip *chip, unsigned int offset) if (ret) return ret; - spin_lock_irqsave(&pctrl->lock, flags); + raw_spin_lock_irqsave(&pctrl->lock, flags); /* Select GPIO mode in PMC Register */ reg8 = readb(pctrl->base + PMC(off)); reg8 &= ~BIT(bit); pctrl->data->pmc_writeb(pctrl, reg8, PMC(off)); - spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&pctrl->lock, flags); return 0; } @@ -1709,7 +1709,7 @@ static void rzg2l_gpio_set_direction(struct rzg2l_pinctrl *pctrl, u32 offset, unsigned long flags; u16 reg16; - spin_lock_irqsave(&pctrl->lock, flags); + raw_spin_lock_irqsave(&pctrl->lock, flags); reg16 = readw(pctrl->base + PM(off)); reg16 &= ~(PM_MASK << (bit * 2)); @@ -1717,7 +1717,7 @@ static void rzg2l_gpio_set_direction(struct rzg2l_pinctrl *pctrl, u32 offset, reg16 |= (output ? PM_OUTPUT : PM_INPUT) << (bit * 2); writew(reg16, pctrl->base + PM(off)); - spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&pctrl->lock, flags); } static int rzg2l_gpio_get_direction(struct gpio_chip *chip, unsigned int offset) @@ -1761,7 +1761,7 @@ static int rzg2l_gpio_set(struct gpio_chip *chip, unsigned int offset, unsigned long flags; u8 reg8; - spin_lock_irqsave(&pctrl->lock, flags); + raw_spin_lock_irqsave(&pctrl->lock, flags); reg8 = readb(pctrl->base + P(off)); @@ -1770,7 +1770,7 @@ static int rzg2l_gpio_set(struct gpio_chip *chip, unsigned int offset, else writeb(reg8 & ~BIT(bit), pctrl->base + P(off)); - spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&pctrl->lock, flags); return 0; } @@ -2429,14 +2429,13 @@ static int rzg2l_gpio_get_gpioint(unsigned int virq, struct rzg2l_pinctrl *pctrl return gpioint; } -static void rzg2l_gpio_irq_endisable(struct rzg2l_pinctrl *pctrl, - unsigned int hwirq, bool enable) +static void __rzg2l_gpio_irq_endisable(struct rzg2l_pinctrl *pctrl, + unsigned int hwirq, bool enable) { const struct pinctrl_pin_desc *pin_desc = &pctrl->desc.pins[hwirq]; u64 *pin_data = pin_desc->drv_data; u32 off = RZG2L_PIN_CFG_TO_PORT_OFFSET(*pin_data); u8 bit = RZG2L_PIN_ID_TO_PIN(hwirq); - unsigned long flags; void __iomem *addr; addr = pctrl->base + ISEL(off); @@ -2445,12 +2444,20 @@ static void rzg2l_gpio_irq_endisable(struct rzg2l_pinctrl *pctrl, addr += 4; } - spin_lock_irqsave(&pctrl->lock, flags); if (enable) writel(readl(addr) | BIT(bit * 8), addr); else writel(readl(addr) & ~BIT(bit * 8), addr); - spin_unlock_irqrestore(&pctrl->lock, flags); +} + +static void rzg2l_gpio_irq_endisable(struct rzg2l_pinctrl *pctrl, + unsigned int hwirq, bool enable) +{ + unsigned long flags; + + raw_spin_lock_irqsave(&pctrl->lock, flags); + __rzg2l_gpio_irq_endisable(pctrl, hwirq, enable); + raw_spin_unlock_irqrestore(&pctrl->lock, flags); } static void rzg2l_gpio_irq_disable(struct irq_data *d) @@ -2462,15 +2469,25 @@ static void rzg2l_gpio_irq_disable(struct irq_data *d) gpiochip_disable_irq(gc, hwirq); } -static void rzg2l_gpio_irq_enable(struct irq_data *d) +static void __rzg2l_gpio_irq_enable(struct irq_data *d, bool lock) { struct gpio_chip *gc = irq_data_get_irq_chip_data(d); + struct rzg2l_pinctrl *pctrl = container_of(gc, struct rzg2l_pinctrl, gpio_chip); unsigned int hwirq = irqd_to_hwirq(d); gpiochip_enable_irq(gc, hwirq); + if (lock) + rzg2l_gpio_irq_endisable(pctrl, hwirq, true); + else + __rzg2l_gpio_irq_endisable(pctrl, hwirq, true); irq_chip_enable_parent(d); } +static void rzg2l_gpio_irq_enable(struct irq_data *d) +{ + __rzg2l_gpio_irq_enable(d, true); +} + static int rzg2l_gpio_irq_set_type(struct irq_data *d, unsigned int type) { return irq_chip_set_type_parent(d, type); @@ -2616,11 +2633,11 @@ static void rzg2l_gpio_irq_restore(struct rzg2l_pinctrl *pctrl) * This has to be atomically executed to protect against a concurrent * interrupt. */ - spin_lock_irqsave(&pctrl->lock, flags); + raw_spin_lock_irqsave(&pctrl->lock, flags); ret = rzg2l_gpio_irq_set_type(data, irqd_get_trigger_type(data)); if (!ret && !irqd_irq_disabled(data)) - rzg2l_gpio_irq_enable(data); - spin_unlock_irqrestore(&pctrl->lock, flags); + __rzg2l_gpio_irq_enable(data, false); + raw_spin_unlock_irqrestore(&pctrl->lock, flags); if (ret) dev_crit(pctrl->dev, "Failed to set IRQ type for virq=%u\n", virq); @@ -2950,7 +2967,7 @@ static int rzg2l_pinctrl_probe(struct platform_device *pdev) "failed to enable GPIO clk\n"); } - spin_lock_init(&pctrl->lock); + raw_spin_lock_init(&pctrl->lock); spin_lock_init(&pctrl->bitmap_lock); mutex_init(&pctrl->mutex); atomic_set(&pctrl->wakeup_path, 0); @@ -3093,7 +3110,7 @@ static void rzg2l_pinctrl_pm_setup_pfc(struct rzg2l_pinctrl *pctrl) u32 nports = pctrl->data->n_port_pins / RZG2L_PINS_PER_PORT; unsigned long flags; - spin_lock_irqsave(&pctrl->lock, flags); + raw_spin_lock_irqsave(&pctrl->lock, flags); pctrl->data->pwpr_pfc_lock_unlock(pctrl, false); /* Restore port registers. */ @@ -3138,7 +3155,7 @@ static void rzg2l_pinctrl_pm_setup_pfc(struct rzg2l_pinctrl *pctrl) } pctrl->data->pwpr_pfc_lock_unlock(pctrl, true); - spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&pctrl->lock, flags); } static int rzg2l_pinctrl_suspend_noirq(struct device *dev) @@ -3187,14 +3204,14 @@ static int rzg2l_pinctrl_resume_noirq(struct device *dev) writeb(cache->qspi, pctrl->base + QSPI); if (pctrl->data->hwcfg->oen_pwpr_lock) { - spin_lock_irqsave(&pctrl->lock, flags); + raw_spin_lock_irqsave(&pctrl->lock, flags); pwpr = readb(pctrl->base + regs->pwpr); writeb(pwpr | PWPR_REGWE_B, pctrl->base + regs->pwpr); } writeb(cache->oen, pctrl->base + pctrl->data->hwcfg->regs.oen); if (pctrl->data->hwcfg->oen_pwpr_lock) { writeb(pwpr & ~PWPR_REGWE_B, pctrl->base + regs->pwpr); - spin_unlock_irqrestore(&pctrl->lock, flags); + raw_spin_unlock_irqrestore(&pctrl->lock, flags); } for (u8 i = 0; i < 2; i++) { if (regs->sd_ch) -- 2.43.0

1 month

3
5
0 0

[PATCH] net: wan: hd64572: validate RX length before skb allocation and copy

by Guangshuo Li

The driver trusts the RX descriptor length and uses it directly for dev_alloc_skb(), memcpy_fromio(), and skb_put() without any bounds checking. If the descriptor gets corrupted or otherwise contains an invalid value, this can lead to an excessive allocation or reading past the per-buffer limit programmed by the driver. Validate 'len' read from the descriptor and drop the frame if it is zero or greater than HDLC_MAX_MRU. The driver programs BFLL to HDLC_MAX_MRU for RX buffers, so this is the correct upper bound. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Cc: stable(a)vger.kernel.org Signed-off-by: Guangshuo Li <lgs201920130244(a)gmail.com> --- drivers/net/wan/hd64572.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/net/wan/hd64572.c b/drivers/net/wan/hd64572.c index 534369ffe5de..6327204e3c02 100644 --- a/drivers/net/wan/hd64572.c +++ b/drivers/net/wan/hd64572.c @@ -199,6 +199,12 @@ static inline void sca_rx(card_t *card, port_t *port, pkt_desc __iomem *desc, u32 buff; len = readw(&desc->len); + + if (unlikely(!len || len > HDLC_MAX_MRU)) { + dev->stats.rx_length_errors++; + return; + } + skb = dev_alloc_skb(len); if (!skb) { dev->stats.rx_dropped++; -- 2.43.0

1 month

2
1
0 0

[PATCH] KVM: arm64: Prevent access to vCPU events before init

by Oliver Upton

Another day, another syzkaller bug. KVM erroneously allows userspace to pend vCPU events for a vCPU that hasn't been initialized yet, leading to KVM interpreting a bunch of uninitialized garbage for routing / injecting the exception. In one case the injection code and the hyp disagree on whether the vCPU has a 32bit EL1 and put the vCPU into an illegal mode for AArch64, tripping the BUG() in exception_target_el() during the next injection: kernel BUG at arch/arm64/kvm/inject_fault.c:40! Internal error: Oops - BUG: 00000000f2000800 [#1] SMP CPU: 3 UID: 0 PID: 318 Comm: repro Not tainted 6.17.0-rc4-00104-g10fd0285305d #6 PREEMPT Hardware name: linux,dummy-virt (DT) pstate: 21402009 (nzCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : exception_target_el+0x88/0x8c lr : pend_serror_exception+0x18/0x13c sp : ffff800082f03a10 x29: ffff800082f03a10 x28: ffff0000cb132280 x27: 0000000000000000 x26: 0000000000000000 x25: ffff0000c2a99c20 x24: 0000000000000000 x23: 0000000000008000 x22: 0000000000000002 x21: 0000000000000004 x20: 0000000000008000 x19: ffff0000c2a99c20 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 00000000200000c0 x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000 x8 : ffff800082f03af8 x7 : 0000000000000000 x6 : 0000000000000000 x5 : ffff800080f621f0 x4 : 0000000000000000 x3 : 0000000000000000 x2 : 000000000040009b x1 : 0000000000000003 x0 : ffff0000c2a99c20 Call trace: exception_target_el+0x88/0x8c (P) kvm_inject_serror_esr+0x40/0x3b4 __kvm_arm_vcpu_set_events+0xf0/0x100 kvm_arch_vcpu_ioctl+0x180/0x9d4 kvm_vcpu_ioctl+0x60c/0x9f4 __arm64_sys_ioctl+0xac/0x104 invoke_syscall+0x48/0x110 el0_svc_common.constprop.0+0x40/0xe0 do_el0_svc+0x1c/0x28 el0_svc+0x34/0xf0 el0t_64_sync_handler+0xa0/0xe4 el0t_64_sync+0x198/0x19c Code: f946bc01 b4fffe61 9101e020 17fffff2 (d4210000) Reject the ioctls outright as no sane VMM would call these before KVM_ARM_VCPU_INIT anyway. Even if it did the exception would've been thrown away by the eventual reset of the vCPU's state. Cc: stable(a)vger.kernel.org # 6.17 Fixes: b7b27facc7b5 ("arm/arm64: KVM: Add KVM_GET/SET_VCPU_EVENTS") Signed-off-by: Oliver Upton <oliver.upton(a)linux.dev> --- While the blamed commit is indeed broken, only 6.17+ kernels actually hit the BUG() due to commit efa1368ba9f4 ("KVM: arm64: Commit exceptions from KVM_SET_VCPU_EVENTS immediately). arch/arm64/kvm/arm.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c index a59b4046617c..c44357d26ee8 100644 --- a/arch/arm64/kvm/arm.c +++ b/arch/arm64/kvm/arm.c @@ -1795,6 +1795,9 @@ long kvm_arch_vcpu_ioctl(struct file *filp, case KVM_GET_VCPU_EVENTS: { struct kvm_vcpu_events events; + if (!kvm_vcpu_initialized(vcpu)) + return -ENOEXEC; + if (kvm_arm_vcpu_get_events(vcpu, &events)) return -EINVAL; @@ -1806,6 +1809,9 @@ long kvm_arch_vcpu_ioctl(struct file *filp, case KVM_SET_VCPU_EVENTS: { struct kvm_vcpu_events events; + if (!kvm_vcpu_initialized(vcpu)) + return -ENOEXEC; + if (copy_from_user(&events, argp, sizeof(events))) return -EFAULT; base-commit: 10fd0285305d0b48e8a3bf15d4f17fc4f3d68cb6 -- 2.39.5

1 month

2
2
0 0

[REGRESSION] drm/xe/guc: Lenovo Thinkpad X1 Carbon Gen 12 can't boot with 6.16.9 and Xe driver

by Iyán Méndez Veiga

Hello, After upgrading to 6.16.9 this morning, my laptop can't boot. I cannot get any logs because the kernel seems to freeze very early, even before I'm asked for the full disk encryption passphrase. This is a regression from 6.16.8 to 6.16.9. I did a git bisect in the stable/linux and this is the commit causing the issue for me: 97207a4fed5348ff5c5e71a7300db9b638640879 is the first bad commit commit 97207a4fed5348ff5c5e71a7300db9b638640879 (HEAD) Author: Daniele Ceraolo Spurio <daniele.ceraolospurio(a)intel.com> Date: Wed Jun 25 13:54:06 2025 -0700 drm/xe/guc: Enable extended CAT error reporting [ Upstream commit a7ffcea8631af91479cab10aa7fbfd0722f01d9a ] https://lore.kernel.org/all/20250625205405.1653212-3-daniele.ceraolospurio@… How to reproduce: 1. Upgrade to 6.16.9 2. Enable the Xe driver by passing i915.force_probe=!7d55 xe.force_probe=7d55 3. Reboot Best regards, Iyán -- Iyán Méndez Veiga GPG Key: 204C 461F BA8C 81D1 0327 E647 422E 3694 311E 5AC1

1 month

4
6
0 0

[PATCH net v4] net: nfc: nci: Add parameter validation for packet data

by Deepak Sharma

Syzbot reported an uninitialized value bug in nci_init_req, which was introduced by commit 5aca7966d2a7 ("Merge tag 'perf-tools-fixes-for-v6.17-2025-09-16' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools"). This bug arises due to very limited and poor input validation that was done at nic_valid_size(). This validation only validates the skb->len (directly reflects size provided at the userspace interface) with the length provided in the buffer itself (interpreted as NCI_HEADER). This leads to the processing of memory content at the address assuming the correct layout per what opcode requires there. This leads to the accesses to buffer of `skb_buff->data` which is not assigned anything yet. Following the same silent drop of packets of invalid sizes at `nic_valid_size()`, add validation of the data in the respective handlers and return error values in case of failure. Release the skb if error values are returned from handlers in `nci_nft_packet` and effectively do a silent drop Possible TODO: because we silently drop the packets, the call to `nci_request` will be waiting for completion of request and will face timeouts. These timeouts can get excessively logged in the dmesg. A proper handling of them may require to export `nci_request_cancel` (or propagate error handling from the nft packets handlers). Reported-by: syzbot+740e04c2a93467a0f8c8(a)syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=740e04c2a93467a0f8c8 Fixes: 6a2968aaf50c ("NFC: basic NCI protocol implementation") Tested-by: syzbot+740e04c2a93467a0f8c8(a)syzkaller.appspotmail.com Cc: stable(a)vger.kernel.org Signed-off-by: Deepak Sharma <deepak.sharma.472935(a)gmail.com> Reviewed-by: Vadim Fedorenko <vadim.fedorenko(a)linux.dev> --- v4: - Remove changes unrelated to the fix v3: - Move the checks inside the packet data handlers - Improvements to the commit message v2: - Fix the release of skb in case of the early return v1: - Add checks in `nci_ntf_packet` on the skb->len and do early return on failure net/nfc/nci/ntf.c | 139 +++++++++++++++++++++++++++++++++------------- 1 file changed, 101 insertions(+), 38 deletions(-) diff --git a/net/nfc/nci/ntf.c b/net/nfc/nci/ntf.c index a818eff27e6b..c0edf8242e22 100644 --- a/net/nfc/nci/ntf.c +++ b/net/nfc/nci/ntf.c @@ -27,11 +27,16 @@ /* Handle NCI Notification packets */ -static void nci_core_reset_ntf_packet(struct nci_dev *ndev, - const struct sk_buff *skb) +static int nci_core_reset_ntf_packet(struct nci_dev *ndev, + const struct sk_buff *skb) { /* Handle NCI 2.x core reset notification */ - const struct nci_core_reset_ntf *ntf = (void *)skb->data; + const struct nci_core_reset_ntf *ntf; + + if (skb->len < sizeof(struct nci_core_reset_ntf)) + return -EINVAL; + + ntf = (struct nci_core_reset_ntf *)skb->data; ndev->nci_ver = ntf->nci_ver; pr_debug("nci_ver 0x%x, config_status 0x%x\n", @@ -42,15 +47,22 @@ static void nci_core_reset_ntf_packet(struct nci_dev *ndev, __le32_to_cpu(ntf->manufact_specific_info); nci_req_complete(ndev, NCI_STATUS_OK); + + return 0; } -static void nci_core_conn_credits_ntf_packet(struct nci_dev *ndev, - struct sk_buff *skb) +static int nci_core_conn_credits_ntf_packet(struct nci_dev *ndev, + struct sk_buff *skb) { - struct nci_core_conn_credit_ntf *ntf = (void *) skb->data; + struct nci_core_conn_credit_ntf *ntf; struct nci_conn_info *conn_info; int i; + if (skb->len < sizeof(struct nci_core_conn_credit_ntf)) + return -EINVAL; + + ntf = (struct nci_core_conn_credit_ntf *)skb->data; + pr_debug("num_entries %d\n", ntf->num_entries); if (ntf->num_entries > NCI_MAX_NUM_CONN) @@ -68,7 +80,7 @@ static void nci_core_conn_credits_ntf_packet(struct nci_dev *ndev, conn_info = nci_get_conn_info_by_conn_id(ndev, ntf->conn_entries[i].conn_id); if (!conn_info) - return; + return 0; atomic_add(ntf->conn_entries[i].credits, &conn_info->credits_cnt); @@ -77,12 +89,19 @@ static void nci_core_conn_credits_ntf_packet(struct nci_dev *ndev, /* trigger the next tx */ if (!skb_queue_empty(&ndev->tx_q)) queue_work(ndev->tx_wq, &ndev->tx_work); + + return 0; } -static void nci_core_generic_error_ntf_packet(struct nci_dev *ndev, - const struct sk_buff *skb) +static int nci_core_generic_error_ntf_packet(struct nci_dev *ndev, + const struct sk_buff *skb) { - __u8 status = skb->data[0]; + __u8 status; + + if (skb->len < 1) + return -EINVAL; + + status = skb->data[0]; pr_debug("status 0x%x\n", status); @@ -91,12 +110,19 @@ static void nci_core_generic_error_ntf_packet(struct nci_dev *ndev, (the state remains the same) */ nci_req_complete(ndev, status); } + + return 0; } -static void nci_core_conn_intf_error_ntf_packet(struct nci_dev *ndev, - struct sk_buff *skb) +static int nci_core_conn_intf_error_ntf_packet(struct nci_dev *ndev, + struct sk_buff *skb) { - struct nci_core_intf_error_ntf *ntf = (void *) skb->data; + struct nci_core_intf_error_ntf *ntf; + + if (skb->len < sizeof(struct nci_core_intf_error_ntf)) + return -EINVAL; + + ntf = (struct nci_core_intf_error_ntf *)skb->data; ntf->conn_id = nci_conn_id(&ntf->conn_id); @@ -105,6 +131,8 @@ static void nci_core_conn_intf_error_ntf_packet(struct nci_dev *ndev, /* complete the data exchange transaction, if exists */ if (test_bit(NCI_DATA_EXCHANGE, &ndev->flags)) nci_data_exchange_complete(ndev, NULL, ntf->conn_id, -EIO); + + return 0; } static const __u8 * @@ -329,13 +357,18 @@ void nci_clear_target_list(struct nci_dev *ndev) ndev->n_targets = 0; } -static void nci_rf_discover_ntf_packet(struct nci_dev *ndev, - const struct sk_buff *skb) +static int nci_rf_discover_ntf_packet(struct nci_dev *ndev, + const struct sk_buff *skb) { struct nci_rf_discover_ntf ntf; - const __u8 *data = skb->data; + const __u8 *data; bool add_target = true; + if (skb->len < sizeof(struct nci_rf_discover_ntf)) + return -EINVAL; + + data = skb->data; + ntf.rf_discovery_id = *data++; ntf.rf_protocol = *data++; ntf.rf_tech_and_mode = *data++; @@ -390,6 +423,8 @@ static void nci_rf_discover_ntf_packet(struct nci_dev *ndev, nfc_targets_found(ndev->nfc_dev, ndev->targets, ndev->n_targets); } + + return 0; } static int nci_extract_activation_params_iso_dep(struct nci_dev *ndev, @@ -553,14 +588,19 @@ static int nci_store_ats_nfc_iso_dep(struct nci_dev *ndev, return NCI_STATUS_OK; } -static void nci_rf_intf_activated_ntf_packet(struct nci_dev *ndev, - const struct sk_buff *skb) +static int nci_rf_intf_activated_ntf_packet(struct nci_dev *ndev, + const struct sk_buff *skb) { struct nci_conn_info *conn_info; struct nci_rf_intf_activated_ntf ntf; - const __u8 *data = skb->data; + const __u8 *data; int err = NCI_STATUS_OK; + if (skb->len < sizeof(struct nci_rf_intf_activated_ntf)) + return -EINVAL; + + data = skb->data; + ntf.rf_discovery_id = *data++; ntf.rf_interface = *data++; ntf.rf_protocol = *data++; @@ -667,7 +707,7 @@ static void nci_rf_intf_activated_ntf_packet(struct nci_dev *ndev, if (err == NCI_STATUS_OK) { conn_info = ndev->rf_conn_info; if (!conn_info) - return; + return 0; conn_info->max_pkt_payload_len = ntf.max_data_pkt_payload_size; conn_info->initial_num_credits = ntf.initial_num_credits; @@ -721,19 +761,26 @@ static void nci_rf_intf_activated_ntf_packet(struct nci_dev *ndev, pr_err("error when signaling tm activation\n"); } } + + return 0; } -static void nci_rf_deactivate_ntf_packet(struct nci_dev *ndev, - const struct sk_buff *skb) +static int nci_rf_deactivate_ntf_packet(struct nci_dev *ndev, + const struct sk_buff *skb) { const struct nci_conn_info *conn_info; - const struct nci_rf_deactivate_ntf *ntf = (void *)skb->data; + const struct nci_rf_deactivate_ntf *ntf; + + if (skb->len < sizeof(struct nci_rf_deactivate_ntf)) + return -EINVAL; + + ntf = (struct nci_rf_deactivate_ntf *)skb->data; pr_debug("entry, type 0x%x, reason 0x%x\n", ntf->type, ntf->reason); conn_info = ndev->rf_conn_info; if (!conn_info) - return; + return 0; /* drop tx data queue */ skb_queue_purge(&ndev->tx_q); @@ -765,14 +812,20 @@ static void nci_rf_deactivate_ntf_packet(struct nci_dev *ndev, } nci_req_complete(ndev, NCI_STATUS_OK); + + return 0; } -static void nci_nfcee_discover_ntf_packet(struct nci_dev *ndev, - const struct sk_buff *skb) +static int nci_nfcee_discover_ntf_packet(struct nci_dev *ndev, + const struct sk_buff *skb) { u8 status = NCI_STATUS_OK; - const struct nci_nfcee_discover_ntf *nfcee_ntf = - (struct nci_nfcee_discover_ntf *)skb->data; + const struct nci_nfcee_discover_ntf *nfcee_ntf; + + if (skb->len < sizeof(struct nci_nfcee_discover_ntf)) + return -EINVAL; + + nfcee_ntf = (struct nci_nfcee_discover_ntf *)skb->data; /* NFCForum NCI 9.2.1 HCI Network Specific Handling * If the NFCC supports the HCI Network, it SHALL return one, @@ -783,6 +836,8 @@ static void nci_nfcee_discover_ntf_packet(struct nci_dev *ndev, ndev->cur_params.id = nfcee_ntf->nfcee_id; nci_req_complete(ndev, status); + + return 0; } void nci_ntf_packet(struct nci_dev *ndev, struct sk_buff *skb) @@ -809,35 +864,43 @@ void nci_ntf_packet(struct nci_dev *ndev, struct sk_buff *skb) switch (ntf_opcode) { case NCI_OP_CORE_RESET_NTF: - nci_core_reset_ntf_packet(ndev, skb); + if (nci_core_reset_ntf_packet(ndev, skb)) + goto end; break; case NCI_OP_CORE_CONN_CREDITS_NTF: - nci_core_conn_credits_ntf_packet(ndev, skb); + if (nci_core_conn_credits_ntf_packet(ndev, skb)) + goto end; break; case NCI_OP_CORE_GENERIC_ERROR_NTF: - nci_core_generic_error_ntf_packet(ndev, skb); + if (nci_core_generic_error_ntf_packet(ndev, skb)) + goto end; break; case NCI_OP_CORE_INTF_ERROR_NTF: - nci_core_conn_intf_error_ntf_packet(ndev, skb); + if (nci_core_conn_intf_error_ntf_packet(ndev, skb)) + goto end; break; case NCI_OP_RF_DISCOVER_NTF: - nci_rf_discover_ntf_packet(ndev, skb); + if (nci_rf_discover_ntf_packet(ndev, skb)) + goto end; break; case NCI_OP_RF_INTF_ACTIVATED_NTF: - nci_rf_intf_activated_ntf_packet(ndev, skb); + if (nci_rf_intf_activated_ntf_packet(ndev, skb)) + goto end; break; case NCI_OP_RF_DEACTIVATE_NTF: - nci_rf_deactivate_ntf_packet(ndev, skb); + if (nci_rf_deactivate_ntf_packet(ndev, skb)) + goto end; break; case NCI_OP_NFCEE_DISCOVER_NTF: - nci_nfcee_discover_ntf_packet(ndev, skb); + if (nci_nfcee_discover_ntf_packet(ndev, skb)) + goto end; break; case NCI_OP_RF_NFCEE_ACTION_NTF: -- 2.51.0

1 month

2
1
0 0

[PATCH] scsi: ips: Fix potential ioremap memory leak in ips_init_phase1()

by Zhen Ni

In ips_init_phase1(), most early-exit error paths use ips_abort_init(), which properly releases ioremap_ptr. However, the path where kzalloc() fails does not go through ips_abort_init() and therefore skips unmapping ioremap_ptr, leading to a potential resource leak. Add the missing iounmap() call in this specific failure path. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Cc: stable(a)vger.kernel.org Signed-off-by: Zhen Ni <zhen.ni(a)easystack.cn> --- drivers/scsi/ips.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/scsi/ips.c b/drivers/scsi/ips.c index 94adb6ac02a4..a34167ec3038 100644 --- a/drivers/scsi/ips.c +++ b/drivers/scsi/ips.c @@ -6877,6 +6877,8 @@ ips_init_phase1(struct pci_dev *pci_dev, int *indexPtr) if (ha == NULL) { IPS_PRINTK(KERN_WARNING, pci_dev, "Unable to allocate temporary ha struct\n"); + if (ioremap_ptr) + iounmap(ioremap_ptr); return -1; } -- 2.20.1

1 month

1
0
0 0

Opportunity to Register as a Vendor for Enoc’s Upcoming Projects

by Enoc

1 month

1
0
0 0

[PATCH 6.12 stable] pktcdvd: Handle bio_split() failure

by Haotian Zhang

The error return from bio_split() is not checked before being passed to bio_chain(), leading to a kernel panic from an invalid pointer dereference. Add a check with IS_ERR() to handle the allocation failure and prevent the crash. This patch fixes a bug in the pktcdvd driver, which was removed from the mainline kernel but still exists in stable branches. Fixes: 4b83e99ee7092 ("Revert "pktcdvd: remove driver."") Cc: stable(a)vger.kernel.org Signed-off-by: Haotian Zhang <vulab(a)iscas.ac.cn> --- drivers/block/pktcdvd.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c index 65b96c083b3c..c0999c3d167a 100644 --- a/drivers/block/pktcdvd.c +++ b/drivers/block/pktcdvd.c @@ -2466,6 +2466,8 @@ static void pkt_submit_bio(struct bio *bio) split = bio_split(bio, last_zone - bio->bi_iter.bi_sector, GFP_NOIO, &pkt_bio_set); + if (IS_ERR(split)) + goto end_io; bio_chain(split, bio); } else { split = bio; -- 2.25.1

1 month

2
1
0 0

[PATCH v3] net/can/gs_usb: increase max interface to U8_MAX

by Celeste Liu

This issue was found by Runcheng Lu when develop HSCanT USB to CAN FD converter[1]. The original developers may have only 3 intefaces device to test so they write 3 here and wait for future change. During the HSCanT development, we actually used 4 interfaces, so the limitation of 3 is not enough now. But just increase one is not future-proofed. Since the channel type in gs_host_frame is u8, just increase interface number limit to max size of u8 safely. [1]: https://github.com/cherry-embedded/HSCanT-hardware Fixes: d08e973a77d1 ("can: gs_usb: Added support for the GS_USB CAN devices") Reported-by: Runcheng Lu <runcheng.lu(a)hpmicro.com> Cc: stable(a)vger.kernel.org Signed-off-by: Celeste Liu <uwu(a)coelacanthus.name> --- Changes in v3: - Cc stable should in patch instead of cover letter. - Link to v2: https://lore.kernel.org/r/20250930-gs-usb-max-if-v2-1-2cf9a44e6861@coelacan… Changes in v2: - Use flexible array member instead of fixed array. - Link to v1: https://lore.kernel.org/r/20250929-gs-usb-max-if-v1-1-e41b5c09133a@coelacan… --- drivers/net/can/usb/gs_usb.c | 22 ++++++++++------------ 1 file changed, 10 insertions(+), 12 deletions(-) diff --git a/drivers/net/can/usb/gs_usb.c b/drivers/net/can/usb/gs_usb.c index c9482d6e947b0c7b033dc4f0c35f5b111e1bfd92..69b068c8fa8fbab42337e2b0a3d0860ac678c792 100644 --- a/drivers/net/can/usb/gs_usb.c +++ b/drivers/net/can/usb/gs_usb.c @@ -289,11 +289,6 @@ struct gs_host_frame { #define GS_MAX_RX_URBS 30 #define GS_NAPI_WEIGHT 32 -/* Maximum number of interfaces the driver supports per device. - * Current hardware only supports 3 interfaces. The future may vary. - */ -#define GS_MAX_INTF 3 - struct gs_tx_context { struct gs_can *dev; unsigned int echo_id; @@ -324,7 +319,6 @@ struct gs_can { /* usb interface struct */ struct gs_usb { - struct gs_can *canch[GS_MAX_INTF]; struct usb_anchor rx_submitted; struct usb_device *udev; @@ -336,9 +330,11 @@ struct gs_usb { unsigned int hf_size_rx; u8 active_channels; + u8 channel_cnt; unsigned int pipe_in; unsigned int pipe_out; + struct gs_can *canch[] __counted_by(channel_cnt); }; /* 'allocate' a tx context. @@ -599,7 +595,7 @@ static void gs_usb_receive_bulk_callback(struct urb *urb) } /* device reports out of range channel id */ - if (hf->channel >= GS_MAX_INTF) + if (hf->channel >= parent->channel_cnt) goto device_detach; dev = parent->canch[hf->channel]; @@ -699,7 +695,7 @@ static void gs_usb_receive_bulk_callback(struct urb *urb) /* USB failure take down all interfaces */ if (rc == -ENODEV) { device_detach: - for (rc = 0; rc < GS_MAX_INTF; rc++) { + for (rc = 0; rc < parent->channel_cnt; rc++) { if (parent->canch[rc]) netif_device_detach(parent->canch[rc]->netdev); } @@ -1460,17 +1456,19 @@ static int gs_usb_probe(struct usb_interface *intf, icount = dconf.icount + 1; dev_info(&intf->dev, "Configuring for %u interfaces\n", icount); - if (icount > GS_MAX_INTF) { + if (icount > type_max(typeof(parent->channel_cnt))) { dev_err(&intf->dev, "Driver cannot handle more that %u CAN interfaces\n", - GS_MAX_INTF); + type_max(typeof(parent->channel_cnt))); return -EINVAL; } - parent = kzalloc(sizeof(*parent), GFP_KERNEL); + parent = kzalloc(struct_size(parent, canch, icount), GFP_KERNEL); if (!parent) return -ENOMEM; + parent->channel_cnt = icount; + init_usb_anchor(&parent->rx_submitted); usb_set_intfdata(intf, parent); @@ -1531,7 +1529,7 @@ static void gs_usb_disconnect(struct usb_interface *intf) return; } - for (i = 0; i < GS_MAX_INTF; i++) + for (i = 0; i < parent->channel_cnt; i++) if (parent->canch[i]) gs_destroy_candev(parent->canch[i]); --- base-commit: e5f0a698b34ed76002dc5cff3804a61c80233a7a change-id: 20250929-gs-usb-max-if-a304c83243e5 Best regards, -- Celeste Liu <uwu(a)coelacanthus.name>

1 month

2
3
0 0

[PATCH net v2 2/2] octeontx2-pf: fix bitmap leak

by Bo Sun

The bitmap allocated with bitmap_zalloc() in otx2_probe() was not released in otx2_remove(). Unbinding and rebinding the driver therefore triggers a kmemleak warning: unreferenced object (size 8): backtrace: bitmap_zalloc otx2_probe Call bitmap_free() in the remove path to fix the leak. Fixes: efabce290151 ("octeontx2-pf: AF_XDP zero copy receive support") Cc: stable(a)vger.kernel.org Signed-off-by: Bo Sun <bo(a)mboxify.com> --- drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c index 5027fae0aa77..e808995703cf 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c @@ -3542,6 +3542,7 @@ static void otx2_remove(struct pci_dev *pdev) otx2_disable_mbox_intr(pf); otx2_pfaf_mbox_destroy(pf); pci_free_irq_vectors(pf->pdev); + bitmap_free(pf->af_xdp_zc_qidx); pci_set_drvdata(pdev, NULL); free_netdev(netdev); } -- 2.50.1 (Apple Git-155)

1 month

1
0
0 0

[PATCH net v2 1/2] octeontx2-vf: fix bitmap leak

by Bo Sun

The bitmap allocated with bitmap_zalloc() in otx2vf_probe() was not released in otx2vf_remove(). Unbinding and rebinding the driver therefore triggers a kmemleak warning: unreferenced object (size 8): backtrace: bitmap_zalloc otx2vf_probe Call bitmap_free() in the remove path to fix the leak. Fixes: efabce290151 ("octeontx2-pf: AF_XDP zero copy receive support") Cc: stable(a)vger.kernel.org Signed-off-by: Bo Sun <bo(a)mboxify.com> --- drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c index 7ebb6e656884..25381f079b97 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c @@ -854,6 +854,7 @@ static void otx2vf_remove(struct pci_dev *pdev) qmem_free(vf->dev, vf->dync_lmt); otx2vf_vfaf_mbox_destroy(vf); pci_free_irq_vectors(vf->pdev); + bitmap_free(vf->af_xdp_zc_qidx); pci_set_drvdata(pdev, NULL); free_netdev(netdev); } -- 2.50.1 (Apple Git-155)

1 month

1
0
0 0

[PATCH 1/2] octeontx2-vf: fix bitmap leak

by Bo Sun

The bitmap allocated with bitmap_zalloc() in otx2vf_probe() was not released in otx2vf_remove(). Unbinding and rebinding the driver therefore triggers a kmemleak warning: unreferenced object (size 8): backtrace: bitmap_zalloc otx2vf_probe Call bitmap_free() in the remove path to fix the leak. Fixes: efabce290151 ("octeontx2-pf: AF_XDP zero copy receive support") Cc: stable(a)vger.kernel.org Signed-off-by: Bo Sun <bo(a)mboxify.com> --- drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c index 7ebb6e656884..25381f079b97 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c @@ -854,6 +854,7 @@ static void otx2vf_remove(struct pci_dev *pdev) qmem_free(vf->dev, vf->dync_lmt); otx2vf_vfaf_mbox_destroy(vf); pci_free_irq_vectors(vf->pdev); + bitmap_free(vf->af_xdp_zc_qidx); pci_set_drvdata(pdev, NULL); free_netdev(netdev); }

1 month

3
4
0 0

[PATCH v2 1/1] mm/rmap: fix soft-dirty and uffd-wp bit loss when remapping zero-filled mTHP subpage to shared zeropage

by Lance Yang

From: Lance Yang <lance.yang(a)linux.dev> When splitting an mTHP and replacing a zero-filled subpage with the shared zeropage, try_to_map_unused_to_zeropage() currently drops several important PTE bits. For userspace tools like CRIU, which rely on the soft-dirty mechanism for incremental snapshots, losing the soft-dirty bit means modified pages are missed, leading to inconsistent memory state after restore. As pointed out by David, the more critical uffd-wp bit is also dropped. This breaks the userfaultfd write-protection mechanism, causing writes to be silently missed by monitoring applications, which can lead to data corruption. Preserve both the soft-dirty and uffd-wp bits from the old PTE when creating the new zeropage mapping to ensure they are correctly tracked. Cc: <stable(a)vger.kernel.org> Fixes: b1f202060afe ("mm: remap unused subpages to shared zeropage when splitting isolated thp") Suggested-by: David Hildenbrand <david(a)redhat.com> Suggested-by: Dev Jain <dev.jain(a)arm.com> Acked-by: David Hildenbrand <david(a)redhat.com> Signed-off-by: Lance Yang <lance.yang(a)linux.dev> --- v1 -> v2: - Avoid calling ptep_get() multiple times (per Dev) - Double-check the uffd-wp bit (per David) - Collect Acked-by from David - thanks! - https://lore.kernel.org/linux-mm/20250928044855.76359-1-lance.yang@linux.de… mm/migrate.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/mm/migrate.c b/mm/migrate.c index ce83c2c3c287..50aa91d9ab4e 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -300,13 +300,14 @@ static bool try_to_map_unused_to_zeropage(struct page_vma_mapped_walk *pvmw, unsigned long idx) { struct page *page = folio_page(folio, idx); + pte_t oldpte = ptep_get(pvmw->pte); pte_t newpte; if (PageCompound(page)) return false; VM_BUG_ON_PAGE(!PageAnon(page), page); VM_BUG_ON_PAGE(!PageLocked(page), page); - VM_BUG_ON_PAGE(pte_present(ptep_get(pvmw->pte)), page); + VM_BUG_ON_PAGE(pte_present(oldpte), page); if (folio_test_mlocked(folio) || (pvmw->vma->vm_flags & VM_LOCKED) || mm_forbids_zeropage(pvmw->vma->vm_mm)) @@ -322,6 +323,12 @@ static bool try_to_map_unused_to_zeropage(struct page_vma_mapped_walk *pvmw, newpte = pte_mkspecial(pfn_pte(my_zero_pfn(pvmw->address), pvmw->vma->vm_page_prot)); + + if (pte_swp_soft_dirty(oldpte)) + newpte = pte_mksoft_dirty(newpte); + if (pte_swp_uffd_wp(oldpte)) + newpte = pte_mkuffd_wp(newpte); + set_pte_at(pvmw->vma->vm_mm, pvmw->address, pvmw->pte, newpte); dec_mm_counter(pvmw->vma->vm_mm, mm_counter(folio)); -- 2.49.0

1 month

2
3
0 0

inquiry

by HOME-HARDWARE

1 month

1
0
0 0

[BUG REPORT] Incorrect adaptation of 7e49538288e5 ("loop: Avoid updating block size under exclusive owner") for stable 6.6

by yangerkun

Error path for blk_validate_block_size is wrong, we should goto unlock, or lo_mutex won't be release, and bdev will keep claimed. ... -static int loop_set_block_size(struct loop_device *lo, unsigned long arg) +static int loop_set_block_size(struct loop_device *lo, blk_mode_t mode, + struct block_device *bdev, unsigned long arg) { int err = 0; - if (lo->lo_state != Lo_bound) - return -ENXIO; + /* + * If we don't hold exclusive handle for the device, upgrade to it + * here to avoid changing device under exclusive owner. + */ + if (!(mode & BLK_OPEN_EXCL)) { + err = bd_prepare_to_claim(bdev, loop_set_block_size, NULL); + if (err) + return err; + } + + err = mutex_lock_killable(&lo->lo_mutex); + if (err) + goto abort_claim; + + if (lo->lo_state != Lo_bound) { + err = -ENXIO; + goto unlock; + } err = blk_validate_block_size(arg); if (err) return err; ^^^^^^^^^^^^^ should goto unlock if (lo->lo_queue->limits.logical_block_size == arg) - return 0; + goto unlock; sync_blockdev(lo->lo_device); invalidate_bdev(lo->lo_device); blk_mq_freeze_queue(lo->lo_queue); blk_queue_logical_block_size(lo->lo_queue, arg); blk_queue_physical_block_size(lo->lo_queue, arg); blk_queue_io_min(lo->lo_queue, arg); loop_update_dio(lo); blk_mq_unfreeze_queue(lo->lo_queue); +unlock: + mutex_unlock(&lo->lo_mutex); +abort_claim: + if (!(mode & BLK_OPEN_EXCL)) + bd_abort_claiming(bdev, loop_set_block_size); return err; }

1 month

2
2
0 0

[PATCH v2] net/can/gs_usb: increase max interface to U8_MAX

by Celeste Liu

This issue was found by Runcheng Lu when develop HSCanT USB to CAN FD converter[1]. The original developers may have only 3 intefaces device to test so they write 3 here and wait for future change. During the HSCanT development, we actually used 4 interfaces, so the limitation of 3 is not enough now. But just increase one is not future-proofed. Since the channel type in gs_host_frame is u8, just increase interface number limit to max size of u8 safely. [1]: https://github.com/cherry-embedded/HSCanT-hardware Fixes: d08e973a77d1 ("can: gs_usb: Added support for the GS_USB CAN devices") Reported-by: Runcheng Lu <runcheng.lu(a)hpmicro.com> Signed-off-by: Celeste Liu <uwu(a)coelacanthus.name> --- Changes in v2: - Use flexible array member instead of fixed array. - Link to v1: https://lore.kernel.org/r/20250929-gs-usb-max-if-v1-1-e41b5c09133a@coelacan… --- drivers/net/can/usb/gs_usb.c | 22 ++++++++++------------ 1 file changed, 10 insertions(+), 12 deletions(-) diff --git a/drivers/net/can/usb/gs_usb.c b/drivers/net/can/usb/gs_usb.c index c9482d6e947b0c7b033dc4f0c35f5b111e1bfd92..69b068c8fa8fbab42337e2b0a3d0860ac678c792 100644 --- a/drivers/net/can/usb/gs_usb.c +++ b/drivers/net/can/usb/gs_usb.c @@ -289,11 +289,6 @@ struct gs_host_frame { #define GS_MAX_RX_URBS 30 #define GS_NAPI_WEIGHT 32 -/* Maximum number of interfaces the driver supports per device. - * Current hardware only supports 3 interfaces. The future may vary. - */ -#define GS_MAX_INTF 3 - struct gs_tx_context { struct gs_can *dev; unsigned int echo_id; @@ -324,7 +319,6 @@ struct gs_can { /* usb interface struct */ struct gs_usb { - struct gs_can *canch[GS_MAX_INTF]; struct usb_anchor rx_submitted; struct usb_device *udev; @@ -336,9 +330,11 @@ struct gs_usb { unsigned int hf_size_rx; u8 active_channels; + u8 channel_cnt; unsigned int pipe_in; unsigned int pipe_out; + struct gs_can *canch[] __counted_by(channel_cnt); }; /* 'allocate' a tx context. @@ -599,7 +595,7 @@ static void gs_usb_receive_bulk_callback(struct urb *urb) } /* device reports out of range channel id */ - if (hf->channel >= GS_MAX_INTF) + if (hf->channel >= parent->channel_cnt) goto device_detach; dev = parent->canch[hf->channel]; @@ -699,7 +695,7 @@ static void gs_usb_receive_bulk_callback(struct urb *urb) /* USB failure take down all interfaces */ if (rc == -ENODEV) { device_detach: - for (rc = 0; rc < GS_MAX_INTF; rc++) { + for (rc = 0; rc < parent->channel_cnt; rc++) { if (parent->canch[rc]) netif_device_detach(parent->canch[rc]->netdev); } @@ -1460,17 +1456,19 @@ static int gs_usb_probe(struct usb_interface *intf, icount = dconf.icount + 1; dev_info(&intf->dev, "Configuring for %u interfaces\n", icount); - if (icount > GS_MAX_INTF) { + if (icount > type_max(typeof(parent->channel_cnt))) { dev_err(&intf->dev, "Driver cannot handle more that %u CAN interfaces\n", - GS_MAX_INTF); + type_max(typeof(parent->channel_cnt))); return -EINVAL; } - parent = kzalloc(sizeof(*parent), GFP_KERNEL); + parent = kzalloc(struct_size(parent, canch, icount), GFP_KERNEL); if (!parent) return -ENOMEM; + parent->channel_cnt = icount; + init_usb_anchor(&parent->rx_submitted); usb_set_intfdata(intf, parent); @@ -1531,7 +1529,7 @@ static void gs_usb_disconnect(struct usb_interface *intf) return; } - for (i = 0; i < GS_MAX_INTF; i++) + for (i = 0; i < parent->channel_cnt; i++) if (parent->canch[i]) gs_destroy_candev(parent->canch[i]); --- base-commit: e5f0a698b34ed76002dc5cff3804a61c80233a7a change-id: 20250929-gs-usb-max-if-a304c83243e5 Best regards, -- Celeste Liu <uwu(a)coelacanthus.name>

1 month

2
2
0 0

[PATCH AUTOSEL 6.16-6.12] netfs: Prevent duplicate unlocking

by Sasha Levin

From: Lizhi Xu <lizhi.xu(a)windriver.com> [ Upstream commit 66d938e89e940e512f4c3deac938ecef399c13f9 ] The filio lock has been released here, so there is no need to jump to error_folio_unlock to release it again. Reported-by: syzbot+b73c7d94a151e2ee1e9b(a)syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=b73c7d94a151e2ee1e9b Signed-off-by: Lizhi Xu <lizhi.xu(a)windriver.com> Acked-by: David Howells <dhowells(a)redhat.com> Reviewed-by: Paulo Alcantara (Red Hat) <pc(a)manguebit.org> Signed-off-by: Christian Brauner <brauner(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- LLM Generated explanations, may be completely bogus: Based on my comprehensive investigation, here is my analysis: ## Backport Decision: **YES** ### Detailed Analysis #### Bug Description This commit fixes a **critical double-unlock bug** in the netfs (Network Filesystem Library) buffered write path. The bug was introduced in commit 8f52de0077ba3b (v6.12-rc1) during a performance optimization refactoring. **The specific bug**: In the `flush_content` error path at fs/netfs/buffered_write.c:346, the code unlocks and releases a folio, then on line 350, if `filemap_write_and_wait_range()` fails, it jumps to `error_folio_unlock` which attempts to unlock the **already unlocked** folio again (line 407). ```c flush_content: folio_unlock(folio); // First unlock - line 346 folio_put(folio); ret = filemap_write_and_wait_range(...); if (ret < 0) goto error_folio_unlock; // BUG: jumps to unlock again! ``` **The fix**: Changes line 350 from `goto error_folio_unlock` to `goto out`, correctly bypassing the duplicate unlock. #### Severity Assessment: **HIGH** 1. **Impact**: - With `CONFIG_DEBUG_VM=y`: Immediate kernel panic via `VM_BUG_ON_FOLIO()` at mm/filemap.c:1498 - With `CONFIG_DEBUG_VM=n`: Silent memory corruption, undefined behavior, potential use-after-free - Affects **all network filesystems**: 9p, AFS, Ceph, NFS, SMB/CIFS 2. **Syzbot Evidence**: - Bug ID: syzbot+b73c7d94a151e2ee1e9b(a)syzkaller.appspotmail.com - Title: "kernel BUG in netfs_perform_write" - **17 crash instances** recorded - Reproducers available (both C and syz formats) - Affected multiple kernel versions (5.4, 5.10, 5.15, 6.1, 6.12) 3. **Triggering Conditions** (Moderate likelihood): - Network filesystem write operation - Incompatible write scenario (netfs_group mismatch or streaming write conflict) - I/O error from `filemap_write_and_wait_range()` (network failure, memory pressure, etc.) #### Backport Criteria Evaluation ✅ **Fixes important bug affecting users**: Yes - causes kernel panics and potential memory corruption for all network filesystem users ✅ **Small and contained fix**: Yes - **single line change**, minimal code modification ✅ **No architectural changes**: Yes - simple error path correction ✅ **Minimal regression risk**: Yes - obviously correct fix, well- reviewed (Acked-by David Howells, Reviewed-by Paulo Alcantara) ✅ **Confined to subsystem**: Yes - only touches netfs buffered write error path ✅ **Well-tested**: Yes - syzbot has reproducers, 17 crash instances documented #### Affected Stable Trees **Bug introduced**: v6.12-rc1 (commit 8f52de0077ba3b) **Bug fixed**: v6.17 (commit 66d938e89e940) **Vulnerable stable kernels**: 6.12.x, 6.13.x, 6.14.x, 6.15.x, 6.16.x #### Missing Metadata (Should be added) The commit is **missing critical stable backport tags**: - No `Fixes: 8f52de0077ba3b ("netfs: Reduce number of conditional branches in netfs_perform_write()")` - No `Cc: stable(a)vger.kernel.org` This appears to be an oversight, as the fix clearly qualifies for stable backporting. ### Conclusion **Strong YES for backporting**. This is a textbook stable tree candidate: - Fixes a serious kernel panic/memory corruption bug - One-line change with zero regression risk - Affects production users of network filesystems - Well-tested with reproducers - Reviewed and acked by subsystem maintainers The fix should be backported to **all stable kernels containing commit 8f52de0077ba3b** (6.12+). fs/netfs/buffered_write.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/netfs/buffered_write.c b/fs/netfs/buffered_write.c index f27ea5099a681..09394ac2c180d 100644 --- a/fs/netfs/buffered_write.c +++ b/fs/netfs/buffered_write.c @@ -347,7 +347,7 @@ ssize_t netfs_perform_write(struct kiocb *iocb, struct iov_iter *iter, folio_put(folio); ret = filemap_write_and_wait_range(mapping, fpos, fpos + flen - 1); if (ret < 0) - goto error_folio_unlock; + goto out; continue; copied: -- 2.51.0

1 month

1
7
0 0

[PATCH 1/1] mm/rmap: fix soft-dirty bit loss when remapping zero-filled mTHP subpage to shared zeropage

by Lance Yang

From: Lance Yang <lance.yang(a)linux.dev> When splitting an mTHP and replacing a zero-filled subpage with the shared zeropage, try_to_map_unused_to_zeropage() currently drops the soft-dirty bit. For userspace tools like CRIU, which rely on the soft-dirty mechanism for incremental snapshots, losing this bit means modified pages are missed, leading to inconsistent memory state after restore. Preserve the soft-dirty bit from the old PTE when creating the zeropage mapping to ensure modified pages are correctly tracked. Cc: <stable(a)vger.kernel.org> Fixes: b1f202060afe ("mm: remap unused subpages to shared zeropage when splitting isolated thp") Signed-off-by: Lance Yang <lance.yang(a)linux.dev> --- mm/migrate.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/mm/migrate.c b/mm/migrate.c index ce83c2c3c287..bf364ba07a3f 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -322,6 +322,10 @@ static bool try_to_map_unused_to_zeropage(struct page_vma_mapped_walk *pvmw, newpte = pte_mkspecial(pfn_pte(my_zero_pfn(pvmw->address), pvmw->vma->vm_page_prot)); + + if (pte_swp_soft_dirty(ptep_get(pvmw->pte))) + newpte = pte_mksoft_dirty(newpte); + set_pte_at(pvmw->vma->vm_mm, pvmw->address, pvmw->pte, newpte); dec_mm_counter(pvmw->vma->vm_mm, mm_counter(folio)); -- 2.49.0

1 month

3
9
0 0

NEW ORDER 8745631

by Diana Owen

Greetings, I hope this email finds you well. I am Mrs. Diana Owen contacting you from Reality Trading Group Ltd India. . As a new growing company, we are looking for reliable company of your product as seen in your website for urgent purchase order basis. Could you please give me more details and specification of your products. We also need your products catalog, MOQ, Production Lead Time and Unit price? Best Regards, Mrs. Diana Owen Purchase Manager Company: Reality Trading Group Ltd

1 month

1
0
0 0

[PATCH] mm/damon/vaddr: do not repeat pte_offset_map_lock() until success

by SeongJae Park

DAMON's virtual address space operation set implementation (vaddr) calls pte_offset_map_lock() inside the page table walk callback function. This is for reading and writing page table accessed bits. If pte_offset_map_lock() fails, it retries by returning the page table walk callback function with ACTION_AGAIN. pte_offset_map_lock() can continuously fail if the target is a pmd migration entry, though. Hence it could cause an infinite page table walk if the migration cannot be done until the page table walk is finished. This indeed caused a soft lockup when CPU hotplugging and DAMON were running in parallel. Avoid the infinite loop by simply not retrying the page table walk. DAMON is promising only a best-effort accuracy, so missing access to such pages is no problem. Reported-by: Xinyu Zheng <zhengxinyu6(a)huawei.com> Closes: https://lore.kernel.org/20250918030029.2652607-1-zhengxinyu6@huawei.com Fixes: 7780d04046a2 ("mm/pagewalkers: ACTION_AGAIN if pte_offset_map_lock() fails") Cc: <stable(a)vger.kernel.org> # 6.5.x Cc: Hugh Dickins <hughd(a)google.com> Signed-off-by: SeongJae Park <sj(a)kernel.org> --- mm/damon/vaddr.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c index 8c048f9b129e..7e834467b2d8 100644 --- a/mm/damon/vaddr.c +++ b/mm/damon/vaddr.c @@ -328,10 +328,8 @@ static int damon_mkold_pmd_entry(pmd_t *pmd, unsigned long addr, } pte = pte_offset_map_lock(walk->mm, pmd, addr, &ptl); - if (!pte) { - walk->action = ACTION_AGAIN; + if (!pte) return 0; - } if (!pte_present(ptep_get(pte))) goto out; damon_ptep_mkold(pte, walk->vma, addr); @@ -481,10 +479,8 @@ static int damon_young_pmd_entry(pmd_t *pmd, unsigned long addr, #endif /* CONFIG_TRANSPARENT_HUGEPAGE */ pte = pte_offset_map_lock(walk->mm, pmd, addr, &ptl); - if (!pte) { - walk->action = ACTION_AGAIN; + if (!pte) return 0; - } ptent = ptep_get(pte); if (!pte_present(ptent)) goto out; base-commit: 3169a901e935bc1f2d2eec0171abcf524b7747e4 -- 2.39.5

1 month

1
0
0 0

FAILED: patch "[PATCH] spi: cadence-qspi: defer runtime support on socfpga if reset" 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 30dbc1c8d50f13c1581b49abe46fe89f393eacbf # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025092913-unissued-panoramic-e22c@gregkh' --subject-prefix 'PATCH 6.12.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 30dbc1c8d50f13c1581b49abe46fe89f393eacbf Mon Sep 17 00:00:00 2001 From: Khairul Anuar Romli <khairul.anuar.romli(a)altera.com> Date: Wed, 10 Sep 2025 16:06:32 +0800 Subject: [PATCH] spi: cadence-qspi: defer runtime support on socfpga if reset bit is enabled Enabling runtime PM allows the kernel to gate clocks and power to idle devices. On SoCFPGA, a warm reset does not fully reinitialize these domains.This leaves devices suspended and powered down, preventing U-Boot or the kernel from reusing them after a warm reset, which breaks the boot process. Fixes: 4892b374c9b7 ("mtd: spi-nor: cadence-quadspi: Add runtime PM support") CC: stable(a)vger.kernel.org # 6.12+ Signed-off-by: Khairul Anuar Romli <khairul.anuar.romli(a)altera.com> Signed-off-by: Adrian Ng Ho Yin <adrianhoyin.ng(a)altera.com> Reviewed-by: Niravkumar L Rabara <nirav.rabara(a)altera.com> Reviewed-by: Matthew Gerlach <matthew.gerlach(a)altera.com> Link: https://patch.msgid.link/910aad68ba5d948919a7b90fa85a2fadb687229b.175749137… Signed-off-by: Mark Brown <broonie(a)kernel.org> diff --git a/drivers/spi/spi-cadence-quadspi.c b/drivers/spi/spi-cadence-quadspi.c index 9bf823348cd3..d288e9d9c187 100644 --- a/drivers/spi/spi-cadence-quadspi.c +++ b/drivers/spi/spi-cadence-quadspi.c @@ -46,6 +46,7 @@ static_assert(CQSPI_MAX_CHIPSELECT <= SPI_CS_CNT_MAX); #define CQSPI_DMA_SET_MASK BIT(7) #define CQSPI_SUPPORT_DEVICE_RESET BIT(8) #define CQSPI_DISABLE_STIG_MODE BIT(9) +#define CQSPI_DISABLE_RUNTIME_PM BIT(10) /* Capabilities */ #define CQSPI_SUPPORTS_OCTAL BIT(0) @@ -1468,14 +1469,17 @@ static int cqspi_exec_mem_op(struct spi_mem *mem, const struct spi_mem_op *op) int ret; struct cqspi_st *cqspi = spi_controller_get_devdata(mem->spi->controller); struct device *dev = &cqspi->pdev->dev; + const struct cqspi_driver_platdata *ddata = of_device_get_match_data(dev); if (refcount_read(&cqspi->inflight_ops) == 0) return -ENODEV; - ret = pm_runtime_resume_and_get(dev); - if (ret) { - dev_err(&mem->spi->dev, "resume failed with %d\n", ret); - return ret; + if (!(ddata && (ddata->quirks & CQSPI_DISABLE_RUNTIME_PM))) { + ret = pm_runtime_resume_and_get(dev); + if (ret) { + dev_err(&mem->spi->dev, "resume failed with %d\n", ret); + return ret; + } } if (!refcount_read(&cqspi->refcount)) @@ -1491,7 +1495,8 @@ static int cqspi_exec_mem_op(struct spi_mem *mem, const struct spi_mem_op *op) ret = cqspi_mem_process(mem, op); - pm_runtime_put_autosuspend(dev); + if (!(ddata && (ddata->quirks & CQSPI_DISABLE_RUNTIME_PM))) + pm_runtime_put_autosuspend(dev); if (ret) dev_err(&mem->spi->dev, "operation failed with %d\n", ret); @@ -1985,11 +1990,12 @@ static int cqspi_probe(struct platform_device *pdev) goto probe_setup_failed; } - pm_runtime_enable(dev); - - pm_runtime_set_autosuspend_delay(dev, CQSPI_AUTOSUSPEND_TIMEOUT); - pm_runtime_use_autosuspend(dev); - pm_runtime_get_noresume(dev); + if (!(ddata && (ddata->quirks & CQSPI_DISABLE_RUNTIME_PM))) { + pm_runtime_enable(dev); + pm_runtime_set_autosuspend_delay(dev, CQSPI_AUTOSUSPEND_TIMEOUT); + pm_runtime_use_autosuspend(dev); + pm_runtime_get_noresume(dev); + } ret = spi_register_controller(host); if (ret) { @@ -1997,12 +2003,17 @@ static int cqspi_probe(struct platform_device *pdev) goto probe_setup_failed; } - pm_runtime_put_autosuspend(dev); + if (!(ddata && (ddata->quirks & CQSPI_DISABLE_RUNTIME_PM))) { + pm_runtime_put_autosuspend(dev); + pm_runtime_mark_last_busy(dev); + pm_runtime_put_autosuspend(dev); + } return 0; probe_setup_failed: cqspi_controller_enable(cqspi, 0); - pm_runtime_disable(dev); + if (!(ddata && (ddata->quirks & CQSPI_DISABLE_RUNTIME_PM))) + pm_runtime_disable(dev); probe_reset_failed: if (cqspi->is_jh7110) cqspi_jh7110_disable_clk(pdev, cqspi); @@ -2013,7 +2024,11 @@ static int cqspi_probe(struct platform_device *pdev) static void cqspi_remove(struct platform_device *pdev) { + const struct cqspi_driver_platdata *ddata; struct cqspi_st *cqspi = platform_get_drvdata(pdev); + struct device *dev = &pdev->dev; + + ddata = of_device_get_match_data(dev); refcount_set(&cqspi->refcount, 0); @@ -2026,14 +2041,17 @@ static void cqspi_remove(struct platform_device *pdev) if (cqspi->rx_chan) dma_release_channel(cqspi->rx_chan); - if (pm_runtime_get_sync(&pdev->dev) >= 0) - clk_disable(cqspi->clk); + if (!(ddata && (ddata->quirks & CQSPI_DISABLE_RUNTIME_PM))) + if (pm_runtime_get_sync(&pdev->dev) >= 0) + clk_disable(cqspi->clk); if (cqspi->is_jh7110) cqspi_jh7110_disable_clk(pdev, cqspi); - pm_runtime_put_sync(&pdev->dev); - pm_runtime_disable(&pdev->dev); + if (!(ddata && (ddata->quirks & CQSPI_DISABLE_RUNTIME_PM))) { + pm_runtime_put_sync(&pdev->dev); + pm_runtime_disable(&pdev->dev); + } } static int cqspi_runtime_suspend(struct device *dev) @@ -2112,7 +2130,8 @@ static const struct cqspi_driver_platdata socfpga_qspi = { .quirks = CQSPI_DISABLE_DAC_MODE | CQSPI_NO_SUPPORT_WR_COMPLETION | CQSPI_SLOW_SRAM - | CQSPI_DISABLE_STIG_MODE, + | CQSPI_DISABLE_STIG_MODE + | CQSPI_DISABLE_RUNTIME_PM, }; static const struct cqspi_driver_platdata versal_ospi = {

1 month, 1 week

2
1
0 0

FAILED: patch "[PATCH] mm/hugetlb: fix folio is still mapped when deleted" 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 7b7387650dcf2881fd8bb55bcf3c8bd6c9542dd7 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025092932-output-egotism-4918@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 7b7387650dcf2881fd8bb55bcf3c8bd6c9542dd7 Mon Sep 17 00:00:00 2001 From: Jinjiang Tu <tujinjiang(a)huawei.com> Date: Fri, 12 Sep 2025 15:41:39 +0800 Subject: [PATCH] mm/hugetlb: fix folio is still mapped when deleted Migration may be raced with fallocating hole. remove_inode_single_folio will unmap the folio if the folio is still mapped. However, it's called without folio lock. If the folio is migrated and the mapped pte has been converted to migration entry, folio_mapped() returns false, and won't unmap it. Due to extra refcount held by remove_inode_single_folio, migration fails, restores migration entry to normal pte, and the folio is mapped again. As a result, we triggered BUG in filemap_unaccount_folio. The log is as follows: BUG: Bad page cache in process hugetlb pfn:156c00 page: refcount:515 mapcount:0 mapping:0000000099fef6e1 index:0x0 pfn:0x156c00 head: order:9 mapcount:1 entire_mapcount:1 nr_pages_mapped:0 pincount:0 aops:hugetlbfs_aops ino:dcc dentry name(?):"my_hugepage_file" flags: 0x17ffffc00000c1(locked|waiters|head|node=0|zone=2|lastcpupid=0x1fffff) page_type: f4(hugetlb) page dumped because: still mapped when deleted CPU: 1 UID: 0 PID: 395 Comm: hugetlb Not tainted 6.17.0-rc5-00044-g7aac71907bde-dirty #484 NONE Hardware name: QEMU Ubuntu 24.04 PC (i440FX + PIIX, 1996), BIOS 0.0.0 02/06/2015 Call Trace: <TASK> dump_stack_lvl+0x4f/0x70 filemap_unaccount_folio+0xc4/0x1c0 __filemap_remove_folio+0x38/0x1c0 filemap_remove_folio+0x41/0xd0 remove_inode_hugepages+0x142/0x250 hugetlbfs_fallocate+0x471/0x5a0 vfs_fallocate+0x149/0x380 Hold folio lock before checking if the folio is mapped to avold race with migration. Link: https://lkml.kernel.org/r/20250912074139.3575005-1-tujinjiang@huawei.com Fixes: 4aae8d1c051e ("mm/hugetlbfs: unmap pages if page fault raced with hole punch") Signed-off-by: Jinjiang Tu <tujinjiang(a)huawei.com> Cc: David Hildenbrand <david(a)redhat.com> Cc: Kefeng Wang <wangkefeng.wang(a)huawei.com> Cc: Matthew Wilcox (Oracle) <willy(a)infradead.org> Cc: Muchun Song <muchun.song(a)linux.dev> Cc: Oscar Salvador <osalvador(a)suse.de> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index 09d4baef29cf..be4be99304bc 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -517,14 +517,16 @@ static bool remove_inode_single_folio(struct hstate *h, struct inode *inode, /* * If folio is mapped, it was faulted in after being - * unmapped in caller. Unmap (again) while holding - * the fault mutex. The mutex will prevent faults - * until we finish removing the folio. + * unmapped in caller or hugetlb_vmdelete_list() skips + * unmapping it due to fail to grab lock. Unmap (again) + * while holding the fault mutex. The mutex will prevent + * faults until we finish removing the folio. Hold folio + * lock to guarantee no concurrent migration. */ + folio_lock(folio); if (unlikely(folio_mapped(folio))) hugetlb_unmap_file_folio(h, mapping, folio, index); - folio_lock(folio); /* * We must remove the folio from page cache before removing * the region/ reserve map (hugetlb_unreserve_pages). In

1 month, 1 week

2
1
0 0

Re; Lets discuss more...

by Mr.Ronald Evergreen

Hello there, I hope this message finds you well. My name is Ronald Evergreen. I am a legal representative based in London, I am contacting you with a confidential business proposal that presents a unique opportunity for partnership that will be of great benefits to both sides financially. For more information reply back and I will give you detailed information. For more information please contact my personal email: evergreenronald86(a)gamil.com. Ronald Evergreen

1 month, 1 week

1
0
0 0

+ mm-hugetlb-avoid-soft-lockup-when-mprotect-to-large-memory-area.patch added to mm-hotfixes-unstable branch

by Andrew Morton

The patch titled Subject: mm: hugetlb: avoid soft lockup when mprotect to large memory area has been added to the -mm mm-hotfixes-unstable branch. Its filename is mm-hugetlb-avoid-soft-lockup-when-mprotect-to-large-memory-area.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: Yang Shi <yang(a)os.amperecomputing.com> Subject: mm: hugetlb: avoid soft lockup when mprotect to large memory area Date: Mon, 29 Sep 2025 13:24:02 -0700 When calling mprotect() to a large hugetlb memory area in our customer's workload (~300GB hugetlb memory), soft lockup was observed: watchdog: BUG: soft lockup - CPU#98 stuck for 23s! [t2_new_sysv:126916] CPU: 98 PID: 126916 Comm: t2_new_sysv Kdump: loaded Not tainted 6.17-rc7 Hardware name: GIGACOMPUTING R2A3-T40-AAV1/Jefferson CIO, BIOS 5.4.4.1 07/15/2025 pstate: 20400009 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc��: mte_clear_page_tags+0x14/0x24 lr��: mte_sync_tags+0x1c0/0x240 sp��: ffff80003150bb80 x29: ffff80003150bb80 x28: ffff00739e9705a8 x27: 0000ffd2d6a00000 x26: 0000ff8e4bc00000 x25: 00e80046cde00f45 x24: 0000000000022458 x23: 0000000000000000 x22: 0000000000000004 x21: 000000011b380000 x20: ffff000000000000 x19: 000000011b379f40 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000000000 x9 : ffffc875e0aa5e2c x8��: 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000 x5��: fffffc01ce7a5c00 x4 : 00000000046cde00 x3 : fffffc0000000000 x2��: 0000000000000004 x1 : 0000000000000040 x0 : ffff0046cde7c000 Call trace: ��mte_clear_page_tags+0x14/0x24 ��set_huge_pte_at+0x25c/0x280 ��hugetlb_change_protection+0x220/0x430 ��change_protection+0x5c/0x8c ��mprotect_fixup+0x10c/0x294 ��do_mprotect_pkey.constprop.0+0x2e0/0x3d4 ��__arm64_sys_mprotect+0x24/0x44 ��invoke_syscall+0x50/0x160 ��el0_svc_common+0x48/0x144 ��do_el0_svc+0x30/0xe0 ��el0_svc+0x30/0xf0 ��el0t_64_sync_handler+0xc4/0x148 ��el0t_64_sync+0x1a4/0x1a8 Soft lockup is not triggered with THP or base page because there is cond_resched() called for each PMD size. Although the soft lockup was triggered by MTE, it should be not MTE specific. The other processing which takes long time in the loop may trigger soft lockup too. So add cond_resched() for hugetlb to avoid soft lockup. Link: https://lkml.kernel.org/r/20250929202402.1663290-1-yang@os.amperecomputing.… Fixes: 8f860591ffb2 ("[PATCH] Enable mprotect on huge pages") Signed-off-by: Yang Shi <yang(a)os.amperecomputing.com> Tested-by: Carl Worth <carl(a)os.amperecomputing.com> Reviewed-by: Christoph Lameter (Ampere) <cl(a)gentwo.org> Reviewed-by: Catalin Marinas <catalin.marinas(a)arm.com> Acked-by: David Hildenbrand <david(a)redhat.com> Acked-by: Oscar Salvador <osalvador(a)suse.de> Reviewed-by: Anshuman Khandual <anshuman.khandual(a)arm.com> Cc: Muchun Song <muchun.song(a)linux.dev> Cc: Will Deacon <will(a)kernel.org> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- mm/hugetlb.c | 2 ++ 1 file changed, 2 insertions(+) --- a/mm/hugetlb.c~mm-hugetlb-avoid-soft-lockup-when-mprotect-to-large-memory-area +++ a/mm/hugetlb.c @@ -7203,6 +7203,8 @@ long hugetlb_change_protection(struct vm psize); } spin_unlock(ptl); + + cond_resched(); } /* * Must flush TLB before releasing i_mmap_rwsem: x86's huge_pmd_unshare _ Patches currently in -mm which might be from yang(a)os.amperecomputing.com are mm-hugetlb-avoid-soft-lockup-when-mprotect-to-large-memory-area.patch

1 month, 1 week

1
0
0 0

FAILED: patch "[PATCH] mm/hugetlb: fix folio is still mapped when deleted" 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 7b7387650dcf2881fd8bb55bcf3c8bd6c9542dd7 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025092931-vastness-jawed-6945@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 7b7387650dcf2881fd8bb55bcf3c8bd6c9542dd7 Mon Sep 17 00:00:00 2001 From: Jinjiang Tu <tujinjiang(a)huawei.com> Date: Fri, 12 Sep 2025 15:41:39 +0800 Subject: [PATCH] mm/hugetlb: fix folio is still mapped when deleted Migration may be raced with fallocating hole. remove_inode_single_folio will unmap the folio if the folio is still mapped. However, it's called without folio lock. If the folio is migrated and the mapped pte has been converted to migration entry, folio_mapped() returns false, and won't unmap it. Due to extra refcount held by remove_inode_single_folio, migration fails, restores migration entry to normal pte, and the folio is mapped again. As a result, we triggered BUG in filemap_unaccount_folio. The log is as follows: BUG: Bad page cache in process hugetlb pfn:156c00 page: refcount:515 mapcount:0 mapping:0000000099fef6e1 index:0x0 pfn:0x156c00 head: order:9 mapcount:1 entire_mapcount:1 nr_pages_mapped:0 pincount:0 aops:hugetlbfs_aops ino:dcc dentry name(?):"my_hugepage_file" flags: 0x17ffffc00000c1(locked|waiters|head|node=0|zone=2|lastcpupid=0x1fffff) page_type: f4(hugetlb) page dumped because: still mapped when deleted CPU: 1 UID: 0 PID: 395 Comm: hugetlb Not tainted 6.17.0-rc5-00044-g7aac71907bde-dirty #484 NONE Hardware name: QEMU Ubuntu 24.04 PC (i440FX + PIIX, 1996), BIOS 0.0.0 02/06/2015 Call Trace: <TASK> dump_stack_lvl+0x4f/0x70 filemap_unaccount_folio+0xc4/0x1c0 __filemap_remove_folio+0x38/0x1c0 filemap_remove_folio+0x41/0xd0 remove_inode_hugepages+0x142/0x250 hugetlbfs_fallocate+0x471/0x5a0 vfs_fallocate+0x149/0x380 Hold folio lock before checking if the folio is mapped to avold race with migration. Link: https://lkml.kernel.org/r/20250912074139.3575005-1-tujinjiang@huawei.com Fixes: 4aae8d1c051e ("mm/hugetlbfs: unmap pages if page fault raced with hole punch") Signed-off-by: Jinjiang Tu <tujinjiang(a)huawei.com> Cc: David Hildenbrand <david(a)redhat.com> Cc: Kefeng Wang <wangkefeng.wang(a)huawei.com> Cc: Matthew Wilcox (Oracle) <willy(a)infradead.org> Cc: Muchun Song <muchun.song(a)linux.dev> Cc: Oscar Salvador <osalvador(a)suse.de> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index 09d4baef29cf..be4be99304bc 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -517,14 +517,16 @@ static bool remove_inode_single_folio(struct hstate *h, struct inode *inode, /* * If folio is mapped, it was faulted in after being - * unmapped in caller. Unmap (again) while holding - * the fault mutex. The mutex will prevent faults - * until we finish removing the folio. + * unmapped in caller or hugetlb_vmdelete_list() skips + * unmapping it due to fail to grab lock. Unmap (again) + * while holding the fault mutex. The mutex will prevent + * faults until we finish removing the folio. Hold folio + * lock to guarantee no concurrent migration. */ + folio_lock(folio); if (unlikely(folio_mapped(folio))) hugetlb_unmap_file_folio(h, mapping, folio, index); - folio_lock(folio); /* * We must remove the folio from page cache before removing * the region/ reserve map (hugetlb_unreserve_pages). In

1 month, 1 week

2
1
0 0

FAILED: patch "[PATCH] mm/hugetlb: fix folio is still mapped when deleted" 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 7b7387650dcf2881fd8bb55bcf3c8bd6c9542dd7 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025092930-header-irritable-c8ed@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 7b7387650dcf2881fd8bb55bcf3c8bd6c9542dd7 Mon Sep 17 00:00:00 2001 From: Jinjiang Tu <tujinjiang(a)huawei.com> Date: Fri, 12 Sep 2025 15:41:39 +0800 Subject: [PATCH] mm/hugetlb: fix folio is still mapped when deleted Migration may be raced with fallocating hole. remove_inode_single_folio will unmap the folio if the folio is still mapped. However, it's called without folio lock. If the folio is migrated and the mapped pte has been converted to migration entry, folio_mapped() returns false, and won't unmap it. Due to extra refcount held by remove_inode_single_folio, migration fails, restores migration entry to normal pte, and the folio is mapped again. As a result, we triggered BUG in filemap_unaccount_folio. The log is as follows: BUG: Bad page cache in process hugetlb pfn:156c00 page: refcount:515 mapcount:0 mapping:0000000099fef6e1 index:0x0 pfn:0x156c00 head: order:9 mapcount:1 entire_mapcount:1 nr_pages_mapped:0 pincount:0 aops:hugetlbfs_aops ino:dcc dentry name(?):"my_hugepage_file" flags: 0x17ffffc00000c1(locked|waiters|head|node=0|zone=2|lastcpupid=0x1fffff) page_type: f4(hugetlb) page dumped because: still mapped when deleted CPU: 1 UID: 0 PID: 395 Comm: hugetlb Not tainted 6.17.0-rc5-00044-g7aac71907bde-dirty #484 NONE Hardware name: QEMU Ubuntu 24.04 PC (i440FX + PIIX, 1996), BIOS 0.0.0 02/06/2015 Call Trace: <TASK> dump_stack_lvl+0x4f/0x70 filemap_unaccount_folio+0xc4/0x1c0 __filemap_remove_folio+0x38/0x1c0 filemap_remove_folio+0x41/0xd0 remove_inode_hugepages+0x142/0x250 hugetlbfs_fallocate+0x471/0x5a0 vfs_fallocate+0x149/0x380 Hold folio lock before checking if the folio is mapped to avold race with migration. Link: https://lkml.kernel.org/r/20250912074139.3575005-1-tujinjiang@huawei.com Fixes: 4aae8d1c051e ("mm/hugetlbfs: unmap pages if page fault raced with hole punch") Signed-off-by: Jinjiang Tu <tujinjiang(a)huawei.com> Cc: David Hildenbrand <david(a)redhat.com> Cc: Kefeng Wang <wangkefeng.wang(a)huawei.com> Cc: Matthew Wilcox (Oracle) <willy(a)infradead.org> Cc: Muchun Song <muchun.song(a)linux.dev> Cc: Oscar Salvador <osalvador(a)suse.de> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index 09d4baef29cf..be4be99304bc 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -517,14 +517,16 @@ static bool remove_inode_single_folio(struct hstate *h, struct inode *inode, /* * If folio is mapped, it was faulted in after being - * unmapped in caller. Unmap (again) while holding - * the fault mutex. The mutex will prevent faults - * until we finish removing the folio. + * unmapped in caller or hugetlb_vmdelete_list() skips + * unmapping it due to fail to grab lock. Unmap (again) + * while holding the fault mutex. The mutex will prevent + * faults until we finish removing the folio. Hold folio + * lock to guarantee no concurrent migration. */ + folio_lock(folio); if (unlikely(folio_mapped(folio))) hugetlb_unmap_file_folio(h, mapping, folio, index); - folio_lock(folio); /* * We must remove the folio from page cache before removing * the region/ reserve map (hugetlb_unreserve_pages). In

1 month, 1 week

2
1
0 0

FAILED: patch "[PATCH] spi: cadence-qspi: defer runtime support on socfpga if reset" failed to apply to 6.16-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.16-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-6.16.y git checkout FETCH_HEAD git cherry-pick -x 30dbc1c8d50f13c1581b49abe46fe89f393eacbf # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025092913-wriggly-condition-4b00@gregkh' --subject-prefix 'PATCH 6.16.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 30dbc1c8d50f13c1581b49abe46fe89f393eacbf Mon Sep 17 00:00:00 2001 From: Khairul Anuar Romli <khairul.anuar.romli(a)altera.com> Date: Wed, 10 Sep 2025 16:06:32 +0800 Subject: [PATCH] spi: cadence-qspi: defer runtime support on socfpga if reset bit is enabled Enabling runtime PM allows the kernel to gate clocks and power to idle devices. On SoCFPGA, a warm reset does not fully reinitialize these domains.This leaves devices suspended and powered down, preventing U-Boot or the kernel from reusing them after a warm reset, which breaks the boot process. Fixes: 4892b374c9b7 ("mtd: spi-nor: cadence-quadspi: Add runtime PM support") CC: stable(a)vger.kernel.org # 6.12+ Signed-off-by: Khairul Anuar Romli <khairul.anuar.romli(a)altera.com> Signed-off-by: Adrian Ng Ho Yin <adrianhoyin.ng(a)altera.com> Reviewed-by: Niravkumar L Rabara <nirav.rabara(a)altera.com> Reviewed-by: Matthew Gerlach <matthew.gerlach(a)altera.com> Link: https://patch.msgid.link/910aad68ba5d948919a7b90fa85a2fadb687229b.175749137… Signed-off-by: Mark Brown <broonie(a)kernel.org> diff --git a/drivers/spi/spi-cadence-quadspi.c b/drivers/spi/spi-cadence-quadspi.c index 9bf823348cd3..d288e9d9c187 100644 --- a/drivers/spi/spi-cadence-quadspi.c +++ b/drivers/spi/spi-cadence-quadspi.c @@ -46,6 +46,7 @@ static_assert(CQSPI_MAX_CHIPSELECT <= SPI_CS_CNT_MAX); #define CQSPI_DMA_SET_MASK BIT(7) #define CQSPI_SUPPORT_DEVICE_RESET BIT(8) #define CQSPI_DISABLE_STIG_MODE BIT(9) +#define CQSPI_DISABLE_RUNTIME_PM BIT(10) /* Capabilities */ #define CQSPI_SUPPORTS_OCTAL BIT(0) @@ -1468,14 +1469,17 @@ static int cqspi_exec_mem_op(struct spi_mem *mem, const struct spi_mem_op *op) int ret; struct cqspi_st *cqspi = spi_controller_get_devdata(mem->spi->controller); struct device *dev = &cqspi->pdev->dev; + const struct cqspi_driver_platdata *ddata = of_device_get_match_data(dev); if (refcount_read(&cqspi->inflight_ops) == 0) return -ENODEV; - ret = pm_runtime_resume_and_get(dev); - if (ret) { - dev_err(&mem->spi->dev, "resume failed with %d\n", ret); - return ret; + if (!(ddata && (ddata->quirks & CQSPI_DISABLE_RUNTIME_PM))) { + ret = pm_runtime_resume_and_get(dev); + if (ret) { + dev_err(&mem->spi->dev, "resume failed with %d\n", ret); + return ret; + } } if (!refcount_read(&cqspi->refcount)) @@ -1491,7 +1495,8 @@ static int cqspi_exec_mem_op(struct spi_mem *mem, const struct spi_mem_op *op) ret = cqspi_mem_process(mem, op); - pm_runtime_put_autosuspend(dev); + if (!(ddata && (ddata->quirks & CQSPI_DISABLE_RUNTIME_PM))) + pm_runtime_put_autosuspend(dev); if (ret) dev_err(&mem->spi->dev, "operation failed with %d\n", ret); @@ -1985,11 +1990,12 @@ static int cqspi_probe(struct platform_device *pdev) goto probe_setup_failed; } - pm_runtime_enable(dev); - - pm_runtime_set_autosuspend_delay(dev, CQSPI_AUTOSUSPEND_TIMEOUT); - pm_runtime_use_autosuspend(dev); - pm_runtime_get_noresume(dev); + if (!(ddata && (ddata->quirks & CQSPI_DISABLE_RUNTIME_PM))) { + pm_runtime_enable(dev); + pm_runtime_set_autosuspend_delay(dev, CQSPI_AUTOSUSPEND_TIMEOUT); + pm_runtime_use_autosuspend(dev); + pm_runtime_get_noresume(dev); + } ret = spi_register_controller(host); if (ret) { @@ -1997,12 +2003,17 @@ static int cqspi_probe(struct platform_device *pdev) goto probe_setup_failed; } - pm_runtime_put_autosuspend(dev); + if (!(ddata && (ddata->quirks & CQSPI_DISABLE_RUNTIME_PM))) { + pm_runtime_put_autosuspend(dev); + pm_runtime_mark_last_busy(dev); + pm_runtime_put_autosuspend(dev); + } return 0; probe_setup_failed: cqspi_controller_enable(cqspi, 0); - pm_runtime_disable(dev); + if (!(ddata && (ddata->quirks & CQSPI_DISABLE_RUNTIME_PM))) + pm_runtime_disable(dev); probe_reset_failed: if (cqspi->is_jh7110) cqspi_jh7110_disable_clk(pdev, cqspi); @@ -2013,7 +2024,11 @@ static int cqspi_probe(struct platform_device *pdev) static void cqspi_remove(struct platform_device *pdev) { + const struct cqspi_driver_platdata *ddata; struct cqspi_st *cqspi = platform_get_drvdata(pdev); + struct device *dev = &pdev->dev; + + ddata = of_device_get_match_data(dev); refcount_set(&cqspi->refcount, 0); @@ -2026,14 +2041,17 @@ static void cqspi_remove(struct platform_device *pdev) if (cqspi->rx_chan) dma_release_channel(cqspi->rx_chan); - if (pm_runtime_get_sync(&pdev->dev) >= 0) - clk_disable(cqspi->clk); + if (!(ddata && (ddata->quirks & CQSPI_DISABLE_RUNTIME_PM))) + if (pm_runtime_get_sync(&pdev->dev) >= 0) + clk_disable(cqspi->clk); if (cqspi->is_jh7110) cqspi_jh7110_disable_clk(pdev, cqspi); - pm_runtime_put_sync(&pdev->dev); - pm_runtime_disable(&pdev->dev); + if (!(ddata && (ddata->quirks & CQSPI_DISABLE_RUNTIME_PM))) { + pm_runtime_put_sync(&pdev->dev); + pm_runtime_disable(&pdev->dev); + } } static int cqspi_runtime_suspend(struct device *dev) @@ -2112,7 +2130,8 @@ static const struct cqspi_driver_platdata socfpga_qspi = { .quirks = CQSPI_DISABLE_DAC_MODE | CQSPI_NO_SUPPORT_WR_COMPLETION | CQSPI_SLOW_SRAM - | CQSPI_DISABLE_STIG_MODE, + | CQSPI_DISABLE_STIG_MODE + | CQSPI_DISABLE_RUNTIME_PM, }; static const struct cqspi_driver_platdata versal_ospi = {

1 month, 1 week

2
2
0 0

FAILED: patch "[PATCH] kmsan: fix out-of-bounds access to shadow memory" failed to apply to 6.1-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.1-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-6.1.y git checkout FETCH_HEAD git cherry-pick -x 85e1ff61060a765d91ee62dc5606d4d547d9d105 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025092954-dance-oat-7fae@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 85e1ff61060a765d91ee62dc5606d4d547d9d105 Mon Sep 17 00:00:00 2001 From: Eric Biggers <ebiggers(a)kernel.org> Date: Thu, 11 Sep 2025 12:58:58 -0700 Subject: [PATCH] kmsan: fix out-of-bounds access to shadow memory Running sha224_kunit on a KMSAN-enabled kernel results in a crash in kmsan_internal_set_shadow_origin(): BUG: unable to handle page fault for address: ffffbc3840291000 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 1810067 P4D 1810067 PUD 192d067 PMD 3c17067 PTE 0 Oops: 0000 [#1] SMP NOPTI CPU: 0 UID: 0 PID: 81 Comm: kunit_try_catch Tainted: G N 6.17.0-rc3 #10 PREEMPT(voluntary) Tainted: [N]=TEST Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.17.0-0-gb52ca86e094d-prebuilt.qemu.org 04/01/2014 RIP: 0010:kmsan_internal_set_shadow_origin+0x91/0x100 [...] Call Trace: <TASK> __msan_memset+0xee/0x1a0 sha224_final+0x9e/0x350 test_hash_buffer_overruns+0x46f/0x5f0 ? kmsan_get_shadow_origin_ptr+0x46/0xa0 ? __pfx_test_hash_buffer_overruns+0x10/0x10 kunit_try_run_case+0x198/0xa00 This occurs when memset() is called on a buffer that is not 4-byte aligned and extends to the end of a guard page, i.e. the next page is unmapped. The bug is that the loop at the end of kmsan_internal_set_shadow_origin() accesses the wrong shadow memory bytes when the address is not 4-byte aligned. Since each 4 bytes are associated with an origin, it rounds the address and size so that it can access all the origins that contain the buffer. However, when it checks the corresponding shadow bytes for a particular origin, it incorrectly uses the original unrounded shadow address. This results in reads from shadow memory beyond the end of the buffer's shadow memory, which crashes when that memory is not mapped. To fix this, correctly align the shadow address before accessing the 4 shadow bytes corresponding to each origin. Link: https://lkml.kernel.org/r/20250911195858.394235-1-ebiggers@kernel.org Fixes: 2ef3cec44c60 ("kmsan: do not wipe out origin when doing partial unpoisoning") Signed-off-by: Eric Biggers <ebiggers(a)kernel.org> Tested-by: Alexander Potapenko <glider(a)google.com> Reviewed-by: Alexander Potapenko <glider(a)google.com> Cc: Dmitriy Vyukov <dvyukov(a)google.com> Cc: Marco Elver <elver(a)google.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> diff --git a/mm/kmsan/core.c b/mm/kmsan/core.c index 1ea711786c52..8bca7fece47f 100644 --- a/mm/kmsan/core.c +++ b/mm/kmsan/core.c @@ -195,7 +195,8 @@ void kmsan_internal_set_shadow_origin(void *addr, size_t size, int b, u32 origin, bool checked) { u64 address = (u64)addr; - u32 *shadow_start, *origin_start; + void *shadow_start; + u32 *aligned_shadow, *origin_start; size_t pad = 0; KMSAN_WARN_ON(!kmsan_metadata_is_contiguous(addr, size)); @@ -214,9 +215,12 @@ void kmsan_internal_set_shadow_origin(void *addr, size_t size, int b, } __memset(shadow_start, b, size); - if (!IS_ALIGNED(address, KMSAN_ORIGIN_SIZE)) { + if (IS_ALIGNED(address, KMSAN_ORIGIN_SIZE)) { + aligned_shadow = shadow_start; + } else { pad = address % KMSAN_ORIGIN_SIZE; address -= pad; + aligned_shadow = shadow_start - pad; size += pad; } size = ALIGN(size, KMSAN_ORIGIN_SIZE); @@ -230,7 +234,7 @@ void kmsan_internal_set_shadow_origin(void *addr, size_t size, int b, * corresponding shadow slot is zero. */ for (int i = 0; i < size / KMSAN_ORIGIN_SIZE; i++) { - if (origin || !shadow_start[i]) + if (origin || !aligned_shadow[i]) origin_start[i] = origin; } } diff --git a/mm/kmsan/kmsan_test.c b/mm/kmsan/kmsan_test.c index c6c5b2bbede0..902ec48b1e3e 100644 --- a/mm/kmsan/kmsan_test.c +++ b/mm/kmsan/kmsan_test.c @@ -556,6 +556,21 @@ DEFINE_TEST_MEMSETXX(16) DEFINE_TEST_MEMSETXX(32) DEFINE_TEST_MEMSETXX(64) +/* Test case: ensure that KMSAN does not access shadow memory out of bounds. */ +static void test_memset_on_guarded_buffer(struct kunit *test) +{ + void *buf = vmalloc(PAGE_SIZE); + + kunit_info(test, + "memset() on ends of guarded buffer should not crash\n"); + + for (size_t size = 0; size <= 128; size++) { + memset(buf, 0xff, size); + memset(buf + PAGE_SIZE - size, 0xff, size); + } + vfree(buf); +} + static noinline void fibonacci(int *array, int size, int start) { if (start < 2 || (start == size)) @@ -677,6 +692,7 @@ static struct kunit_case kmsan_test_cases[] = { KUNIT_CASE(test_memset16), KUNIT_CASE(test_memset32), KUNIT_CASE(test_memset64), + KUNIT_CASE(test_memset_on_guarded_buffer), KUNIT_CASE(test_long_origin_chain), KUNIT_CASE(test_stackdepot_roundtrip), KUNIT_CASE(test_unpoison_memory),

1 month, 1 week

2
1
0 0

Executive Assistants and HNWI Directory to Enhance Your Marketing and Networking

by Brenda Wilson

Hi , Our verified database enables accurate outreach to Executive Assistants and high-net-worth individuals. Executive Assistants (by region): USA : 50,000 contacts Europe : 15,000 contacts Canada : 2,000 contacts Middle East : 2,500 contacts HNWI & Senior Decision-Makers (by region, incl. EAs): USA : 500,000 contacts Europe : 50,000 contacts Canada : 10,000 contacts UAE : 7,500 contacts Titles we cover: Business Owners, Founders, Entrepreneurs, C-Level Executives, VPs, and Executive Assistants. Data fields: Name, Job Title, Company, URL, Email, Revenue and more. This list helps reach gatekeepers and decision-makers who oversee charter service partnerships. Happy to share prices if that helps. Eager to receive your feedback. Regards Brenda Marketing Manager Prospect Tech Connect., Please reply with REMOVE if you don't wish to receive further emails

1 month, 1 week

1
0
0 0

FAILED: patch "[PATCH] gpiolib: Extend software-node support to support secondary" 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 c6ccc4dde17676dfe617b9a37bd9ba19a8fc87ee # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025092939-unsafe-alfalfa-105c@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From c6ccc4dde17676dfe617b9a37bd9ba19a8fc87ee Mon Sep 17 00:00:00 2001 From: Hans de Goede <hansg(a)kernel.org> Date: Sat, 20 Sep 2025 22:09:55 +0200 Subject: [PATCH] gpiolib: Extend software-node support to support secondary software-nodes When a software-node gets added to a device which already has another fwnode as primary node it will become the secondary fwnode for that device. Currently if a software-node with GPIO properties ends up as the secondary fwnode then gpiod_find_by_fwnode() will fail to find the GPIOs. Add a new gpiod_fwnode_lookup() helper which falls back to calling gpiod_find_by_fwnode() with the secondary fwnode if the GPIO was not found in the primary fwnode. Fixes: e7f9ff5dc90c ("gpiolib: add support for software nodes") Cc: stable(a)vger.kernel.org Signed-off-by: Hans de Goede <hansg(a)kernel.org> Reviewed-by: Dmitry Torokhov <dmitry.torokhov(a)gmail.com> Link: https://lore.kernel.org/r/20250920200955.20403-1-hansg@kernel.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski(a)linaro.org> diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 0d2b470a252e..74d54513730a 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -4604,6 +4604,23 @@ static struct gpio_desc *gpiod_find_by_fwnode(struct fwnode_handle *fwnode, return desc; } +static struct gpio_desc *gpiod_fwnode_lookup(struct fwnode_handle *fwnode, + struct device *consumer, + const char *con_id, + unsigned int idx, + enum gpiod_flags *flags, + unsigned long *lookupflags) +{ + struct gpio_desc *desc; + + desc = gpiod_find_by_fwnode(fwnode, consumer, con_id, idx, flags, lookupflags); + if (gpiod_not_found(desc) && !IS_ERR_OR_NULL(fwnode)) + desc = gpiod_find_by_fwnode(fwnode->secondary, consumer, con_id, + idx, flags, lookupflags); + + return desc; +} + struct gpio_desc *gpiod_find_and_request(struct device *consumer, struct fwnode_handle *fwnode, const char *con_id, @@ -4622,8 +4639,8 @@ struct gpio_desc *gpiod_find_and_request(struct device *consumer, int ret = 0; scoped_guard(srcu, &gpio_devices_srcu) { - desc = gpiod_find_by_fwnode(fwnode, consumer, con_id, idx, - &flags, &lookupflags); + desc = gpiod_fwnode_lookup(fwnode, consumer, con_id, idx, + &flags, &lookupflags); if (gpiod_not_found(desc) && platform_lookup_allowed) { /* * Either we are not using DT or ACPI, or their lookup

1 month, 1 week

2
1
0 0

[PATCH 00/19 v6.1.y] Backport minmax.h updates from v6.17-rc7

by Eliav Farber

This series backports 19 patches to update minmax.h in the 6.1.y branch, aligning it with v6.17-rc7. The ultimate goal is to synchronize all longterm branches so that they include the full set of minmax.h changes. Previous work to update 6.12.48: https://lore.kernel.org/stable/20250922103123.14538-1-farbere@amazon.com/T/… and 6.6.107: https://lore.kernel.org/stable/20250922103241.16213-1-farbere@amazon.com/T/… The key motivation is to bring in commit d03eba99f5bf ("minmax: allow min()/max()/clamp() if the arguments have the same signedness"), which is missing in older kernels. In mainline, this change enables min()/max()/clamp() to accept mixed argument types, provided both have the same signedness. Without it, backported patches that use these forms may trigger compiler warnings, which escalate to build failures when -Werror is enabled. Andy Shevchenko (1): minmax: deduplicate __unconst_integer_typeof() David Laight (8): minmax: fix indentation of __cmp_once() and __clamp_once() minmax.h: add whitespace around operators and after commas minmax.h: update some comments minmax.h: reduce the #define expansion of min(), max() and clamp() minmax.h: use BUILD_BUG_ON_MSG() for the lo < hi test in clamp() minmax.h: move all the clamp() definitions after the min/max() ones minmax.h: simplify the variants of clamp() minmax.h: remove some #defines that are only expanded once Herve Codina (1): minmax: Introduce {min,max}_array() Linus Torvalds (8): minmax: avoid overly complicated constant expressions in VM code minmax: simplify and clarify min_t()/max_t() implementation minmax: make generic MIN() and MAX() macros available everywhere minmax: add a few more MIN_T/MAX_T users minmax: simplify min()/max()/clamp() implementation minmax: don't use max() in situations that want a C constant expression minmax: improve macro expansion and type checking minmax: fix up min3() and max3() too Matthew Wilcox (Oracle) (1): minmax: add in_range() macro arch/arm/mm/pageattr.c | 6 +- arch/um/drivers/mconsole_user.c | 2 + arch/x86/mm/pgtable.c | 2 +- drivers/edac/sb_edac.c | 4 +- drivers/edac/skx_common.h | 1 - .../drm/amd/display/modules/hdcp/hdcp_ddc.c | 2 + .../drm/amd/pm/powerplay/hwmgr/ppevvmath.h | 14 +- drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c | 2 +- .../drm/arm/display/include/malidp_utils.h | 2 +- .../display/komeda/komeda_pipeline_state.c | 24 +- drivers/gpu/drm/drm_color_mgmt.c | 2 +- drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 6 - drivers/gpu/drm/radeon/evergreen_cs.c | 2 + drivers/hwmon/adt7475.c | 24 +- drivers/input/touchscreen/cyttsp4_core.c | 2 +- drivers/irqchip/irq-sun6i-r.c | 2 +- drivers/md/dm-integrity.c | 2 +- drivers/media/dvb-frontends/stv0367_priv.h | 3 + .../net/ethernet/chelsio/cxgb3/cxgb3_main.c | 18 +- .../net/ethernet/stmicro/stmmac/stmmac_main.c | 2 +- drivers/net/fjes/fjes_main.c | 4 +- drivers/nfc/pn544/i2c.c | 2 - drivers/platform/x86/sony-laptop.c | 1 - drivers/scsi/isci/init.c | 6 +- .../pci/hive_isp_css_include/math_support.h | 5 - drivers/virt/acrn/ioreq.c | 4 +- fs/btrfs/misc.h | 2 - fs/btrfs/tree-checker.c | 2 +- fs/ext2/balloc.c | 2 - fs/ext4/ext4.h | 2 - fs/ufs/util.h | 6 - include/linux/compiler.h | 9 + include/linux/minmax.h | 264 +++++++++++++----- include/linux/pageblock-flags.h | 2 +- kernel/trace/preemptirq_delay_test.c | 2 - lib/btree.c | 1 - lib/decompress_unlzma.c | 2 + lib/logic_pio.c | 3 - lib/vsprintf.c | 2 +- mm/zsmalloc.c | 1 - net/ipv4/proc.c | 2 +- net/ipv6/proc.c | 2 +- net/netfilter/nf_nat_core.c | 6 +- net/tipc/core.h | 2 +- net/tipc/link.c | 10 +- .../selftests/bpf/progs/get_branch_snapshot.c | 4 +- tools/testing/selftests/seccomp/seccomp_bpf.c | 2 + tools/testing/selftests/vm/mremap_test.c | 2 + 48 files changed, 290 insertions(+), 184 deletions(-) -- 2.47.3

1 month, 1 week

3
24
0 0

Access Verified Attendees Database – IAAPA Expo 2025

by Norma Richards

Good day, Are you looking to acquire the verified attendees database for International Association of Amusement Parks and Attractions - IAAPA Expo 2025? Who Attends - Director of Operations, Operations Manager, General Manager, Park Manager, Attraction Manager, Ride Engineer, Entertainment Manager, Event Coordinator, Marketing Manager, Sales Manager, Business Development Manager, Guest Services Manager, Food and Beverage Manager, Retail Manager, Safety Manager, Maintenance Manager, Facility Manager, Purchasing Manager, Consultant, Vendor Relations Manager List Contains - Business name, URL, Contact number, Job title, Industry Type and etc.… Reply with “Send Cost Details” for more information. Thanks, Norma Richard | Event Coordinator If you don’t want to receive further email revert back as “ Take Out”

1 month, 1 week

1
1
0 0

FAILED: patch "[PATCH] iommufd: Fix race during abort for file descriptors" 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 4e034bf045b12852a24d5d33f2451850818ba0c1 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025092933-conform-unclaimed-d167@gregkh' --subject-prefix 'PATCH 6.12.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 4e034bf045b12852a24d5d33f2451850818ba0c1 Mon Sep 17 00:00:00 2001 From: Jason Gunthorpe <jgg(a)ziepe.ca> Date: Tue, 16 Sep 2025 20:47:10 -0300 Subject: [PATCH] iommufd: Fix race during abort for file descriptors fput() doesn't actually call file_operations release() synchronously, it puts the file on a work queue and it will be released eventually. This is normally fine, except for iommufd the file and the iommufd_object are tied to gether. The file has the object as it's private_data and holds a users refcount, while the object is expected to remain alive as long as the file is. When the allocation of a new object aborts before installing the file it will fput() the file and then go on to immediately kfree() the obj. This causes a UAF once the workqueue completes the fput() and tries to decrement the users refcount. Fix this by putting the core code in charge of the file lifetime, and call __fput_sync() during abort to ensure that release() is called before kfree. __fput_sync() is a bit too tricky to open code in all the object implementations. Instead the objects tell the core code where the file pointer is and the core will take care of the life cycle. If the object is successfully allocated then the file will hold a users refcount and the iommufd_object cannot be destroyed. It is worth noting that close(); ioctl(IOMMU_DESTROY); doesn't have an issue because close() is already using a synchronous version of fput(). The UAF looks like this: BUG: KASAN: slab-use-after-free in iommufd_eventq_fops_release+0x45/0xc0 drivers/iommu/iommufd/eventq.c:376 Write of size 4 at addr ffff888059c97804 by task syz.0.46/6164 CPU: 0 UID: 0 PID: 6164 Comm: syz.0.46 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 Call Trace: <TASK> __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0xcd/0x630 mm/kasan/report.c:482 kasan_report+0xe0/0x110 mm/kasan/report.c:595 check_region_inline mm/kasan/generic.c:183 [inline] kasan_check_range+0x100/0x1b0 mm/kasan/generic.c:189 instrument_atomic_read_write include/linux/instrumented.h:96 [inline] atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:400 [inline] __refcount_dec include/linux/refcount.h:455 [inline] refcount_dec include/linux/refcount.h:476 [inline] iommufd_eventq_fops_release+0x45/0xc0 drivers/iommu/iommufd/eventq.c:376 __fput+0x402/0xb70 fs/file_table.c:468 task_work_run+0x14d/0x240 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop+0xeb/0x110 kernel/entry/common.c:43 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline] do_syscall_64+0x41c/0x4c0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f Link: https://patch.msgid.link/r/1-v1-02cd136829df+31-iommufd_syz_fput_jgg@nvidia… Cc: stable(a)vger.kernel.org Fixes: 07838f7fd529 ("iommufd: Add iommufd fault object") Reviewed-by: Nicolin Chen <nicolinc(a)nvidia.com> Reviewed-by: Nirmoy Das <nirmoyd(a)nvidia.com> Reviewed-by: Kevin Tian <kevin.tian(a)intel.com> Tested-by: Nicolin Chen <nicolinc(a)nvidia.com> Reported-by: syzbot+80620e2d0d0a33b09f93(a)syzkaller.appspotmail.com Closes: https://lore.kernel.org/r/68c8583d.050a0220.2ff435.03a2.GAE@google.com Signed-off-by: Jason Gunthorpe <jgg(a)nvidia.com> diff --git a/drivers/iommu/iommufd/eventq.c b/drivers/iommu/iommufd/eventq.c index fc4de63b0bce..e23d9ee4fe38 100644 --- a/drivers/iommu/iommufd/eventq.c +++ b/drivers/iommu/iommufd/eventq.c @@ -393,12 +393,12 @@ static int iommufd_eventq_init(struct iommufd_eventq *eventq, char *name, const struct file_operations *fops) { struct file *filep; - int fdno; spin_lock_init(&eventq->lock); INIT_LIST_HEAD(&eventq->deliver); init_waitqueue_head(&eventq->wait_queue); + /* The filep is fput() by the core code during failure */ filep = anon_inode_getfile(name, fops, eventq, O_RDWR); if (IS_ERR(filep)) return PTR_ERR(filep); @@ -408,10 +408,7 @@ static int iommufd_eventq_init(struct iommufd_eventq *eventq, char *name, eventq->filep = filep; refcount_inc(&eventq->obj.users); - fdno = get_unused_fd_flags(O_CLOEXEC); - if (fdno < 0) - fput(filep); - return fdno; + return get_unused_fd_flags(O_CLOEXEC); } static const struct file_operations iommufd_fault_fops = @@ -452,7 +449,6 @@ int iommufd_fault_alloc(struct iommufd_ucmd *ucmd) return 0; out_put_fdno: put_unused_fd(fdno); - fput(fault->common.filep); return rc; } @@ -536,7 +532,6 @@ int iommufd_veventq_alloc(struct iommufd_ucmd *ucmd) out_put_fdno: put_unused_fd(fdno); - fput(veventq->common.filep); out_abort: iommufd_object_abort_and_destroy(ucmd->ictx, &veventq->common.obj); out_unlock_veventqs: diff --git a/drivers/iommu/iommufd/main.c b/drivers/iommu/iommufd/main.c index a9d4decc8ba1..88be2e157245 100644 --- a/drivers/iommu/iommufd/main.c +++ b/drivers/iommu/iommufd/main.c @@ -23,6 +23,7 @@ #include "iommufd_test.h" struct iommufd_object_ops { + size_t file_offset; void (*pre_destroy)(struct iommufd_object *obj); void (*destroy)(struct iommufd_object *obj); void (*abort)(struct iommufd_object *obj); @@ -131,10 +132,30 @@ void iommufd_object_abort(struct iommufd_ctx *ictx, struct iommufd_object *obj) void iommufd_object_abort_and_destroy(struct iommufd_ctx *ictx, struct iommufd_object *obj) { - if (iommufd_object_ops[obj->type].abort) - iommufd_object_ops[obj->type].abort(obj); + const struct iommufd_object_ops *ops = &iommufd_object_ops[obj->type]; + + if (ops->file_offset) { + struct file **filep = ((void *)obj) + ops->file_offset; + + /* + * A file should hold a users refcount while the file is open + * and put it back in its release. The file should hold a + * pointer to obj in their private data. Normal fput() is + * deferred to a workqueue and can get out of order with the + * following kfree(obj). Using the sync version ensures the + * release happens immediately. During abort we require the file + * refcount is one at this point - meaning the object alloc + * function cannot do anything to allow another thread to take a + * refcount prior to a guaranteed success. + */ + if (*filep) + __fput_sync(*filep); + } + + if (ops->abort) + ops->abort(obj); else - iommufd_object_ops[obj->type].destroy(obj); + ops->destroy(obj); iommufd_object_abort(ictx, obj); } @@ -659,6 +680,12 @@ void iommufd_ctx_put(struct iommufd_ctx *ictx) } EXPORT_SYMBOL_NS_GPL(iommufd_ctx_put, "IOMMUFD"); +#define IOMMUFD_FILE_OFFSET(_struct, _filep, _obj) \ + .file_offset = (offsetof(_struct, _filep) + \ + BUILD_BUG_ON_ZERO(!__same_type( \ + struct file *, ((_struct *)NULL)->_filep)) + \ + BUILD_BUG_ON_ZERO(offsetof(_struct, _obj))) + static const struct iommufd_object_ops iommufd_object_ops[] = { [IOMMUFD_OBJ_ACCESS] = { .destroy = iommufd_access_destroy_object, @@ -669,6 +696,7 @@ static const struct iommufd_object_ops iommufd_object_ops[] = { }, [IOMMUFD_OBJ_FAULT] = { .destroy = iommufd_fault_destroy, + IOMMUFD_FILE_OFFSET(struct iommufd_fault, common.filep, common.obj), }, [IOMMUFD_OBJ_HW_QUEUE] = { .destroy = iommufd_hw_queue_destroy, @@ -691,6 +719,7 @@ static const struct iommufd_object_ops iommufd_object_ops[] = { [IOMMUFD_OBJ_VEVENTQ] = { .destroy = iommufd_veventq_destroy, .abort = iommufd_veventq_abort, + IOMMUFD_FILE_OFFSET(struct iommufd_veventq, common.filep, common.obj), }, [IOMMUFD_OBJ_VIOMMU] = { .destroy = iommufd_viommu_destroy,

1 month, 1 week

2
1
0 0

FAILED: patch "[PATCH] i40e: add mask to apply valid bits for itr_idx" 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 eac04428abe9f9cb203ffae4600791ea1d24eb18 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025092927-captivate-suspense-fdf7@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From eac04428abe9f9cb203ffae4600791ea1d24eb18 Mon Sep 17 00:00:00 2001 From: Lukasz Czapnik <lukasz.czapnik(a)intel.com> Date: Wed, 13 Aug 2025 12:45:17 +0200 Subject: [PATCH] i40e: add mask to apply valid bits for itr_idx The ITR index (itr_idx) is only 2 bits wide. When constructing the register value for QINT_RQCTL, all fields are ORed together. Without masking, higher bits from itr_idx may overwrite adjacent fields in the register. Apply I40E_QINT_RQCTL_ITR_INDX_MASK to ensure only the intended bits are set. Fixes: 5c3c48ac6bf5 ("i40e: implement virtual device interface") Cc: stable(a)vger.kernel.org Signed-off-by: Lukasz Czapnik <lukasz.czapnik(a)intel.com> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov(a)intel.com> Signed-off-by: Przemek Kitszel <przemyslaw.kitszel(a)intel.com> Reviewed-by: Simon Horman <horms(a)kernel.org> Tested-by: Rafal Romanowski <rafal.romanowski(a)intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen(a)intel.com> diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c index f29941c00342..f9b2197f0942 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c +++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c @@ -448,7 +448,7 @@ static void i40e_config_irq_link_list(struct i40e_vf *vf, u16 vsi_id, (qtype << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT) | (pf_queue_id << I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT) | BIT(I40E_QINT_RQCTL_CAUSE_ENA_SHIFT) | - (itr_idx << I40E_QINT_RQCTL_ITR_INDX_SHIFT); + FIELD_PREP(I40E_QINT_RQCTL_ITR_INDX_MASK, itr_idx); wr32(hw, reg_idx, reg); }

1 month, 1 week

2
1
0 0

[PATCH] mtd: nand: raw: gpmi: fix clocks when CONFIG_PM=N

by Maarten Zanders

Commit f04ced6d545e ("mtd: nand: raw: gpmi: improve power management handling") moved all clock handling into PM callbacks. With CONFIG_PM disabled, those callbacks are missing, leaving the driver unusable. Add clock init/teardown for !CONFIG_PM builds to restore basic operation. Keeping the driver working without requiring CONFIG_PM is preferred over adding a Kconfig dependency. Fixes: f04ced6d545e ("mtd: nand: raw: gpmi: improve power management handling") Signed-off-by: Maarten Zanders <maarten(a)zanders.be> Cc: stable(a)vger.kernel.org --- drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c index f4e68008ea03..a750f5839e34 100644 --- a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c +++ b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c @@ -145,6 +145,9 @@ static int __gpmi_enable_clk(struct gpmi_nand_data *this, bool v) return ret; } +#define gpmi_enable_clk(x) __gpmi_enable_clk(x, true) +#define gpmi_disable_clk(x) __gpmi_enable_clk(x, false) + static int gpmi_init(struct gpmi_nand_data *this) { struct resources *r = &this->resources; @@ -2765,6 +2768,11 @@ static int gpmi_nand_probe(struct platform_device *pdev) pm_runtime_enable(&pdev->dev); pm_runtime_set_autosuspend_delay(&pdev->dev, 500); pm_runtime_use_autosuspend(&pdev->dev); +#ifndef CONFIG_PM + ret = gpmi_enable_clk(this); + if (ret) + goto exit_acquire_resources; +#endif ret = gpmi_init(this); if (ret) @@ -2800,6 +2808,9 @@ static void gpmi_nand_remove(struct platform_device *pdev) release_resources(this); pm_runtime_dont_use_autosuspend(&pdev->dev); pm_runtime_disable(&pdev->dev); +#ifndef CONFIG_PM + gpmi_disable_clk(this); +#endif } static int gpmi_pm_suspend(struct device *dev) @@ -2846,9 +2857,6 @@ static int gpmi_pm_resume(struct device *dev) return 0; } -#define gpmi_enable_clk(x) __gpmi_enable_clk(x, true) -#define gpmi_disable_clk(x) __gpmi_enable_clk(x, false) - static int gpmi_runtime_suspend(struct device *dev) { struct gpmi_nand_data *this = dev_get_drvdata(dev); -- 2.51.0

1 month, 1 week

2
3
0 0

2025

2024

2023

2022

2021

2020

2019

2018

2017

Linux-stable-mirror