February 2025 - Linux-stable-mirror

FAILED: patch "[PATCH] hrtimers: Force migrate away hrtimers queued after" 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 53dac345395c0d2493cbc2f4c85fe38aef5b63f5 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025021053-unranked-silt-0282@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 53dac345395c0d2493cbc2f4c85fe38aef5b63f5 Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker <frederic(a)kernel.org> Date: Sat, 18 Jan 2025 00:24:33 +0100 Subject: [PATCH] hrtimers: Force migrate away hrtimers queued after CPUHP_AP_HRTIMERS_DYING hrtimers are migrated away from the dying CPU to any online target at the CPUHP_AP_HRTIMERS_DYING stage in order not to delay bandwidth timers handling tasks involved in the CPU hotplug forward progress. However wakeups can still be performed by the outgoing CPU after CPUHP_AP_HRTIMERS_DYING. Those can result again in bandwidth timers being armed. Depending on several considerations (crystal ball power management based election, earliest timer already enqueued, timer migration enabled or not), the target may eventually be the current CPU even if offline. If that happens, the timer is eventually ignored. The most notable example is RCU which had to deal with each and every of those wake-ups by deferring them to an online CPU, along with related workarounds: _ e787644caf76 (rcu: Defer RCU kthreads wakeup when CPU is dying) _ 9139f93209d1 (rcu/nocb: Fix RT throttling hrtimer armed from offline CPU) _ f7345ccc62a4 (rcu/nocb: Fix rcuog wake-up from offline softirq) The problem isn't confined to RCU though as the stop machine kthread (which runs CPUHP_AP_HRTIMERS_DYING) reports its completion at the end of its work through cpu_stop_signal_done() and performs a wake up that eventually arms the deadline server timer: WARNING: CPU: 94 PID: 588 at kernel/time/hrtimer.c:1086 hrtimer_start_range_ns+0x289/0x2d0 CPU: 94 UID: 0 PID: 588 Comm: migration/94 Not tainted Stopper: multi_cpu_stop+0x0/0x120 <- stop_machine_cpuslocked+0x66/0xc0 RIP: 0010:hrtimer_start_range_ns+0x289/0x2d0 Call Trace: <TASK> start_dl_timer enqueue_dl_entity dl_server_start enqueue_task_fair enqueue_task ttwu_do_activate try_to_wake_up complete cpu_stopper_thread Instead of providing yet another bandaid to work around the situation, fix it in the hrtimers infrastructure instead: always migrate away a timer to an online target whenever it is enqueued from an offline CPU. This will also allow to revert all the above RCU disgraceful hacks. Fixes: 5c0930ccaad5 ("hrtimers: Push pending hrtimers away from outgoing CPU earlier") Reported-by: Vlad Poenaru <vlad.wing(a)gmail.com> Reported-by: Usama Arif <usamaarif642(a)gmail.com> Signed-off-by: Frederic Weisbecker <frederic(a)kernel.org> Signed-off-by: Paul E. McKenney <paulmck(a)kernel.org> Signed-off-by: Thomas Gleixner <tglx(a)linutronix.de> Cc: stable(a)vger.kernel.org Tested-by: Paul E. McKenney <paulmck(a)kernel.org> Link: https://lore.kernel.org/all/20250117232433.24027-1-frederic@kernel.org Closes: 20241213203739.1519801-1-usamaarif642(a)gmail.com diff --git a/include/linux/hrtimer_defs.h b/include/linux/hrtimer_defs.h index c3b4b7ed7c16..84a5045f80f3 100644 --- a/include/linux/hrtimer_defs.h +++ b/include/linux/hrtimer_defs.h @@ -125,6 +125,7 @@ struct hrtimer_cpu_base { ktime_t softirq_expires_next; struct hrtimer *softirq_next_timer; struct hrtimer_clock_base clock_base[HRTIMER_MAX_CLOCK_BASES]; + call_single_data_t csd; } ____cacheline_aligned; diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c index 4fb81f8c6f1c..deb1aa32814e 100644 --- a/kernel/time/hrtimer.c +++ b/kernel/time/hrtimer.c @@ -58,6 +58,8 @@ #define HRTIMER_ACTIVE_SOFT (HRTIMER_ACTIVE_HARD << MASK_SHIFT) #define HRTIMER_ACTIVE_ALL (HRTIMER_ACTIVE_SOFT | HRTIMER_ACTIVE_HARD) +static void retrigger_next_event(void *arg); + /* * The timer bases: * @@ -111,7 +113,8 @@ DEFINE_PER_CPU(struct hrtimer_cpu_base, hrtimer_bases) = .clockid = CLOCK_TAI, .get_time = &ktime_get_clocktai, }, - } + }, + .csd = CSD_INIT(retrigger_next_event, NULL) }; static const int hrtimer_clock_to_base_table[MAX_CLOCKS] = { @@ -124,6 +127,14 @@ static const int hrtimer_clock_to_base_table[MAX_CLOCKS] = { [CLOCK_TAI] = HRTIMER_BASE_TAI, }; +static inline bool hrtimer_base_is_online(struct hrtimer_cpu_base *base) +{ + if (!IS_ENABLED(CONFIG_HOTPLUG_CPU)) + return true; + else + return likely(base->online); +} + /* * Functions and macros which are different for UP/SMP systems are kept in a * single place @@ -178,27 +189,54 @@ struct hrtimer_clock_base *lock_hrtimer_base(const struct hrtimer *timer, } /* - * We do not migrate the timer when it is expiring before the next - * event on the target cpu. When high resolution is enabled, we cannot - * reprogram the target cpu hardware and we would cause it to fire - * late. To keep it simple, we handle the high resolution enabled and - * disabled case similar. + * Check if the elected target is suitable considering its next + * event and the hotplug state of the current CPU. + * + * If the elected target is remote and its next event is after the timer + * to queue, then a remote reprogram is necessary. However there is no + * guarantee the IPI handling the operation would arrive in time to meet + * the high resolution deadline. In this case the local CPU becomes a + * preferred target, unless it is offline. + * + * High and low resolution modes are handled the same way for simplicity. * * Called with cpu_base->lock of target cpu held. */ -static int -hrtimer_check_target(struct hrtimer *timer, struct hrtimer_clock_base *new_base) +static bool hrtimer_suitable_target(struct hrtimer *timer, struct hrtimer_clock_base *new_base, + struct hrtimer_cpu_base *new_cpu_base, + struct hrtimer_cpu_base *this_cpu_base) { ktime_t expires; + /* + * The local CPU clockevent can be reprogrammed. Also get_target_base() + * guarantees it is online. + */ + if (new_cpu_base == this_cpu_base) + return true; + + /* + * The offline local CPU can't be the default target if the + * next remote target event is after this timer. Keep the + * elected new base. An IPI will we issued to reprogram + * it as a last resort. + */ + if (!hrtimer_base_is_online(this_cpu_base)) + return true; + expires = ktime_sub(hrtimer_get_expires(timer), new_base->offset); - return expires < new_base->cpu_base->expires_next; + + return expires >= new_base->cpu_base->expires_next; } -static inline -struct hrtimer_cpu_base *get_target_base(struct hrtimer_cpu_base *base, - int pinned) +static inline struct hrtimer_cpu_base *get_target_base(struct hrtimer_cpu_base *base, int pinned) { + if (!hrtimer_base_is_online(base)) { + int cpu = cpumask_any_and(cpu_online_mask, housekeeping_cpumask(HK_TYPE_TIMER)); + + return &per_cpu(hrtimer_bases, cpu); + } + #if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ_COMMON) if (static_branch_likely(&timers_migration_enabled) && !pinned) return &per_cpu(hrtimer_bases, get_nohz_timer_target()); @@ -249,8 +287,8 @@ switch_hrtimer_base(struct hrtimer *timer, struct hrtimer_clock_base *base, raw_spin_unlock(&base->cpu_base->lock); raw_spin_lock(&new_base->cpu_base->lock); - if (new_cpu_base != this_cpu_base && - hrtimer_check_target(timer, new_base)) { + if (!hrtimer_suitable_target(timer, new_base, new_cpu_base, + this_cpu_base)) { raw_spin_unlock(&new_base->cpu_base->lock); raw_spin_lock(&base->cpu_base->lock); new_cpu_base = this_cpu_base; @@ -259,8 +297,7 @@ switch_hrtimer_base(struct hrtimer *timer, struct hrtimer_clock_base *base, } WRITE_ONCE(timer->base, new_base); } else { - if (new_cpu_base != this_cpu_base && - hrtimer_check_target(timer, new_base)) { + if (!hrtimer_suitable_target(timer, new_base, new_cpu_base, this_cpu_base)) { new_cpu_base = this_cpu_base; goto again; } @@ -706,8 +743,6 @@ static inline int hrtimer_is_hres_enabled(void) return hrtimer_hres_enabled; } -static void retrigger_next_event(void *arg); - /* * Switch to high resolution mode */ @@ -1195,6 +1230,7 @@ static int __hrtimer_start_range_ns(struct hrtimer *timer, ktime_t tim, u64 delta_ns, const enum hrtimer_mode mode, struct hrtimer_clock_base *base) { + struct hrtimer_cpu_base *this_cpu_base = this_cpu_ptr(&hrtimer_bases); struct hrtimer_clock_base *new_base; bool force_local, first; @@ -1206,9 +1242,15 @@ static int __hrtimer_start_range_ns(struct hrtimer *timer, ktime_t tim, * and enforce reprogramming after it is queued no matter whether * it is the new first expiring timer again or not. */ - force_local = base->cpu_base == this_cpu_ptr(&hrtimer_bases); + force_local = base->cpu_base == this_cpu_base; force_local &= base->cpu_base->next_timer == timer; + /* + * Don't force local queuing if this enqueue happens on a unplugged + * CPU after hrtimer_cpu_dying() has been invoked. + */ + force_local &= this_cpu_base->online; + /* * Remove an active timer from the queue. In case it is not queued * on the current CPU, make sure that remove_hrtimer() updates the @@ -1238,8 +1280,27 @@ static int __hrtimer_start_range_ns(struct hrtimer *timer, ktime_t tim, } first = enqueue_hrtimer(timer, new_base, mode); - if (!force_local) - return first; + if (!force_local) { + /* + * If the current CPU base is online, then the timer is + * never queued on a remote CPU if it would be the first + * expiring timer there. + */ + if (hrtimer_base_is_online(this_cpu_base)) + return first; + + /* + * Timer was enqueued remote because the current base is + * already offline. If the timer is the first to expire, + * kick the remote CPU to reprogram the clock event. + */ + if (first) { + struct hrtimer_cpu_base *new_cpu_base = new_base->cpu_base; + + smp_call_function_single_async(new_cpu_base->cpu, &new_cpu_base->csd); + } + return 0; + } /* * Timer was forced to stay on the current CPU to avoid

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FAILED: patch "[PATCH] btrfs: check folio mapping after unlock in" 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 3e74859ee35edc33a022c3f3971df066ea0ca6b9 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024123045-parka-sublet-a95d@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 3e74859ee35edc33a022c3f3971df066ea0ca6b9 Mon Sep 17 00:00:00 2001 From: Boris Burkov <boris(a)bur.io> Date: Fri, 13 Dec 2024 12:22:32 -0800 Subject: [PATCH] btrfs: check folio mapping after unlock in relocate_one_folio() When we call btrfs_read_folio() to bring a folio uptodate, we unlock the folio. The result of that is that a different thread can modify the mapping (like remove it with invalidate) before we call folio_lock(). This results in an invalid page and we need to try again. In particular, if we are relocating concurrently with aborting a transaction, this can result in a crash like the following: BUG: kernel NULL pointer dereference, address: 0000000000000000 PGD 0 P4D 0 Oops: 0000 [#1] SMP CPU: 76 PID: 1411631 Comm: kworker/u322:5 Workqueue: events_unbound btrfs_reclaim_bgs_work RIP: 0010:set_page_extent_mapped+0x20/0xb0 RSP: 0018:ffffc900516a7be8 EFLAGS: 00010246 RAX: ffffea009e851d08 RBX: ffffea009e0b1880 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffc900516a7b90 RDI: ffffea009e0b1880 RBP: 0000000003573000 R08: 0000000000000001 R09: ffff88c07fd2f3f0 R10: 0000000000000000 R11: 0000194754b575be R12: 0000000003572000 R13: 0000000003572fff R14: 0000000000100cca R15: 0000000005582fff FS: 0000000000000000(0000) GS:ffff88c07fd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000407d00f002 CR4: 00000000007706f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: <TASK> ? __die+0x78/0xc0 ? page_fault_oops+0x2a8/0x3a0 ? __switch_to+0x133/0x530 ? wq_worker_running+0xa/0x40 ? exc_page_fault+0x63/0x130 ? asm_exc_page_fault+0x22/0x30 ? set_page_extent_mapped+0x20/0xb0 relocate_file_extent_cluster+0x1a7/0x940 relocate_data_extent+0xaf/0x120 relocate_block_group+0x20f/0x480 btrfs_relocate_block_group+0x152/0x320 btrfs_relocate_chunk+0x3d/0x120 btrfs_reclaim_bgs_work+0x2ae/0x4e0 process_scheduled_works+0x184/0x370 worker_thread+0xc6/0x3e0 ? blk_add_timer+0xb0/0xb0 kthread+0xae/0xe0 ? flush_tlb_kernel_range+0x90/0x90 ret_from_fork+0x2f/0x40 ? flush_tlb_kernel_range+0x90/0x90 ret_from_fork_asm+0x11/0x20 </TASK> This occurs because cleanup_one_transaction() calls destroy_delalloc_inodes() which calls invalidate_inode_pages2() which takes the folio_lock before setting mapping to NULL. We fail to check this, and subsequently call set_extent_mapping(), which assumes that mapping != NULL (in fact it asserts that in debug mode) Note that the "fixes" patch here is not the one that introduced the race (the very first iteration of this code from 2009) but a more recent change that made this particular crash happen in practice. Fixes: e7f1326cc24e ("btrfs: set page extent mapped after read_folio in relocate_one_page") CC: stable(a)vger.kernel.org # 6.1+ Reviewed-by: Qu Wenruo <wqu(a)suse.com> Signed-off-by: Boris Burkov <boris(a)bur.io> Signed-off-by: David Sterba <dsterba(a)suse.com> diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c index bf267bdfa8f8..db8b42f674b7 100644 --- a/fs/btrfs/relocation.c +++ b/fs/btrfs/relocation.c @@ -2902,6 +2902,7 @@ static int relocate_one_folio(struct reloc_control *rc, const bool use_rst = btrfs_need_stripe_tree_update(fs_info, rc->block_group->flags); ASSERT(index <= last_index); +again: folio = filemap_lock_folio(inode->i_mapping, index); if (IS_ERR(folio)) { @@ -2937,6 +2938,11 @@ static int relocate_one_folio(struct reloc_control *rc, ret = -EIO; goto release_folio; } + if (folio->mapping != inode->i_mapping) { + folio_unlock(folio); + folio_put(folio); + goto again; + } } /*

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FAILED: patch "[PATCH] btrfs: check folio mapping after unlock in" 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 3e74859ee35edc33a022c3f3971df066ea0ca6b9 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024123042-limelight-doily-8703@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 3e74859ee35edc33a022c3f3971df066ea0ca6b9 Mon Sep 17 00:00:00 2001 From: Boris Burkov <boris(a)bur.io> Date: Fri, 13 Dec 2024 12:22:32 -0800 Subject: [PATCH] btrfs: check folio mapping after unlock in relocate_one_folio() When we call btrfs_read_folio() to bring a folio uptodate, we unlock the folio. The result of that is that a different thread can modify the mapping (like remove it with invalidate) before we call folio_lock(). This results in an invalid page and we need to try again. In particular, if we are relocating concurrently with aborting a transaction, this can result in a crash like the following: BUG: kernel NULL pointer dereference, address: 0000000000000000 PGD 0 P4D 0 Oops: 0000 [#1] SMP CPU: 76 PID: 1411631 Comm: kworker/u322:5 Workqueue: events_unbound btrfs_reclaim_bgs_work RIP: 0010:set_page_extent_mapped+0x20/0xb0 RSP: 0018:ffffc900516a7be8 EFLAGS: 00010246 RAX: ffffea009e851d08 RBX: ffffea009e0b1880 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffc900516a7b90 RDI: ffffea009e0b1880 RBP: 0000000003573000 R08: 0000000000000001 R09: ffff88c07fd2f3f0 R10: 0000000000000000 R11: 0000194754b575be R12: 0000000003572000 R13: 0000000003572fff R14: 0000000000100cca R15: 0000000005582fff FS: 0000000000000000(0000) GS:ffff88c07fd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000407d00f002 CR4: 00000000007706f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: <TASK> ? __die+0x78/0xc0 ? page_fault_oops+0x2a8/0x3a0 ? __switch_to+0x133/0x530 ? wq_worker_running+0xa/0x40 ? exc_page_fault+0x63/0x130 ? asm_exc_page_fault+0x22/0x30 ? set_page_extent_mapped+0x20/0xb0 relocate_file_extent_cluster+0x1a7/0x940 relocate_data_extent+0xaf/0x120 relocate_block_group+0x20f/0x480 btrfs_relocate_block_group+0x152/0x320 btrfs_relocate_chunk+0x3d/0x120 btrfs_reclaim_bgs_work+0x2ae/0x4e0 process_scheduled_works+0x184/0x370 worker_thread+0xc6/0x3e0 ? blk_add_timer+0xb0/0xb0 kthread+0xae/0xe0 ? flush_tlb_kernel_range+0x90/0x90 ret_from_fork+0x2f/0x40 ? flush_tlb_kernel_range+0x90/0x90 ret_from_fork_asm+0x11/0x20 </TASK> This occurs because cleanup_one_transaction() calls destroy_delalloc_inodes() which calls invalidate_inode_pages2() which takes the folio_lock before setting mapping to NULL. We fail to check this, and subsequently call set_extent_mapping(), which assumes that mapping != NULL (in fact it asserts that in debug mode) Note that the "fixes" patch here is not the one that introduced the race (the very first iteration of this code from 2009) but a more recent change that made this particular crash happen in practice. Fixes: e7f1326cc24e ("btrfs: set page extent mapped after read_folio in relocate_one_page") CC: stable(a)vger.kernel.org # 6.1+ Reviewed-by: Qu Wenruo <wqu(a)suse.com> Signed-off-by: Boris Burkov <boris(a)bur.io> Signed-off-by: David Sterba <dsterba(a)suse.com> diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c index bf267bdfa8f8..db8b42f674b7 100644 --- a/fs/btrfs/relocation.c +++ b/fs/btrfs/relocation.c @@ -2902,6 +2902,7 @@ static int relocate_one_folio(struct reloc_control *rc, const bool use_rst = btrfs_need_stripe_tree_update(fs_info, rc->block_group->flags); ASSERT(index <= last_index); +again: folio = filemap_lock_folio(inode->i_mapping, index); if (IS_ERR(folio)) { @@ -2937,6 +2938,11 @@ static int relocate_one_folio(struct reloc_control *rc, ret = -EIO; goto release_folio; } + if (folio->mapping != inode->i_mapping) { + folio_unlock(folio); + folio_put(folio); + goto again; + } } /*

3 months

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FAILED: patch "[PATCH] arm64/sme: Always exit sme_alloc() early with existing" 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 dc7eb8755797ed41a0d1b5c0c39df3c8f401b3d9 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024012617-overlap-reborn-e124@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: dc7eb8755797 ("arm64/sme: Always exit sme_alloc() early with existing storage") 5d0a8d2fba50 ("arm64/ptrace: Ensure that SME is set up for target when writing SSVE state") f90b529bcbe5 ("arm64/sme: Implement ZT0 ptrace support") ce514000da4f ("arm64/sme: Rename za_state to sme_state") 1192b93ba352 ("arm64/fp: Use a struct to pass data to fpsimd_bind_state_to_cpu()") deeb8f9a80fd ("arm64/fpsimd: Have KVM explicitly say which FP registers to save") baa8515281b3 ("arm64/fpsimd: Track the saved FPSIMD state type separately to TIF_SVE") 93ae6b01bafe ("KVM: arm64: Discard any SVE state when entering KVM guests") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From dc7eb8755797ed41a0d1b5c0c39df3c8f401b3d9 Mon Sep 17 00:00:00 2001 From: Mark Brown <broonie(a)kernel.org> Date: Mon, 15 Jan 2024 20:15:46 +0000 Subject: [PATCH] arm64/sme: Always exit sme_alloc() early with existing storage When sme_alloc() is called with existing storage and we are not flushing we will always allocate new storage, both leaking the existing storage and corrupting the state. Fix this by separating the checks for flushing and for existing storage as we do for SVE. Callers that reallocate (eg, due to changing the vector length) should call sme_free() themselves. Fixes: 5d0a8d2fba50 ("arm64/ptrace: Ensure that SME is set up for target when writing SSVE state") Signed-off-by: Mark Brown <broonie(a)kernel.org> Cc: <stable(a)vger.kernel.org> Link: https://lore.kernel.org/r/20240115-arm64-sme-flush-v1-1-7472bd3459b7@kernel… Signed-off-by: Will Deacon <will(a)kernel.org> diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c index 0983be2b1b61..a5dc6f764195 100644 --- a/arch/arm64/kernel/fpsimd.c +++ b/arch/arm64/kernel/fpsimd.c @@ -1217,8 +1217,10 @@ void fpsimd_release_task(struct task_struct *dead_task) */ void sme_alloc(struct task_struct *task, bool flush) { - if (task->thread.sme_state && flush) { - memset(task->thread.sme_state, 0, sme_state_size(task)); + if (task->thread.sme_state) { + if (flush) + memset(task->thread.sme_state, 0, + sme_state_size(task)); return; }

3 months, 2 weeks

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[PATCH 6.1 000/569] 6.1.129-rc2 review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 6.1.129 release. There are 569 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 Sat, 22 Feb 2025 10:44:04 +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-6.1.129-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 6.1.129-rc2 David Woodhouse <dwmw(a)amazon.co.uk> x86/i8253: Disable PIT timer 0 when not in use Hersen Wu <hersenxs.wu(a)amd.com> drm/amd/display: Add NULL pointer check for kzalloc Chao Yu <chao(a)kernel.org> f2fs: fix to wait dio completion Romain Naour <romain.naour(a)skf.com> ARM: dts: dra7: Add bus_dma_limit for l4 cfg bus Hangbin Liu <liuhangbin(a)gmail.com> selftests: rtnetlink: update netdevsim ipsec output format Hangbin Liu <liuhangbin(a)gmail.com> netdevsim: print human readable IP address Vladimir Oltean <vladimir.oltean(a)nxp.com> net: dsa: fix netdev_priv() dereference before check on non-DSA netdevice events Jiaqing Zhao <jiaqing.zhao(a)linux.intel.com> parport_pc: add support for ASIX AX99100 Jiaqing Zhao <jiaqing.zhao(a)linux.intel.com> serial: 8250_pci: add support for ASIX AX99100 Jiaqing Zhao <jiaqing.zhao(a)linux.intel.com> can: ems_pci: move ASIX AX99100 ids to pci_ids.h Ryusuke Konishi <konishi.ryusuke(a)gmail.com> nilfs2: protect access to buffers with no active references Ryusuke Konishi <konishi.ryusuke(a)gmail.com> nilfs2: do not force clear folio if buffer is referenced Ryusuke Konishi <konishi.ryusuke(a)gmail.com> nilfs2: do not output warnings when clearing dirty buffers Kaixin Wang <kxwang23(a)m.fudan.edu.cn> i3c: master: cdns: Fix use after free vulnerability in cdns_i3c_master Driver Due to Race Condition Ivan Kokshaysky <ink(a)unseen.parts> alpha: replace hardcoded stack offsets with autogenerated ones Zhaoyang Huang <zhaoyang.huang(a)unisoc.com> mm: gup: fix infinite loop within __get_longterm_locked Sumit Gupta <sumitg(a)nvidia.com> arm64: tegra: Fix typo in Tegra234 dce-fabric compatible Lu Baolu <baolu.lu(a)linux.intel.com> iommu: Return right value in iommu_sva_bind_device() Andrew Cooper <andrew.cooper3(a)citrix.com> x86/static-call: Remove early_boot_irqs_disabled check to fix Xen PVH dom0 John Ogness <john.ogness(a)linutronix.de> kdb: Do not assume write() callback available Christian Gmeiner <cgmeiner(a)igalia.com> drm/v3d: Stop active perfmon if it is being destroyed Devarsh Thakkar <devarsht(a)ti.com> drm/tidss: Clear the interrupt status for interrupts being disabled Tomi Valkeinen <tomi.valkeinen(a)ideasonboard.com> drm/tidss: Fix issue in irq handling causing irq-flood issue Eric Dumazet <edumazet(a)google.com> ipv6: mcast: add RCU protection to mld_newpack() Eric Dumazet <edumazet(a)google.com> ndisc: extend RCU protection in ndisc_send_skb() Eric Dumazet <edumazet(a)google.com> openvswitch: use RCU protection in ovs_vport_cmd_fill_info() Eric Dumazet <edumazet(a)google.com> arp: use RCU protection in arp_xmit() Eric Dumazet <edumazet(a)google.com> neighbour: use RCU protection in __neigh_notify() Li Zetao <lizetao1(a)huawei.com> neighbour: delete redundant judgment statements Eric Dumazet <edumazet(a)google.com> ndisc: use RCU protection in ndisc_alloc_skb() Eric Dumazet <edumazet(a)google.com> ipv6: use RCU protection in ip6_default_advmss() Eric Dumazet <edumazet(a)google.com> flow_dissector: use RCU protection to fetch dev_net() Eric Dumazet <edumazet(a)google.com> ipv4: icmp: convert to dev_net_rcu() Eric Dumazet <edumazet(a)google.com> ipv4: use RCU protection in __ip_rt_update_pmtu() Vladimir Vdovin <deliran(a)verdict.gg> net: ipv4: Cache pmtu for all packet paths if multipath enabled Eric Dumazet <edumazet(a)google.com> ipv4: use RCU protection in inet_select_addr() Eric Dumazet <edumazet(a)google.com> ipv4: use RCU protection in rt_is_expired() Eric Dumazet <edumazet(a)google.com> ipv4: use RCU protection in ipv4_default_advmss() Eric Dumazet <edumazet(a)google.com> net: add dev_net_rcu() helper Jiri Pirko <jiri(a)nvidia.com> net: treat possible_net_t net pointer as an RCU one and add read_pnet_rcu() Eric Dumazet <edumazet(a)google.com> ipv4: add RCU protection to ip4_dst_hoplimit() Waiman Long <longman(a)redhat.com> clocksource: Use migrate_disable() to avoid calling get_random_u32() in atomic context Waiman Long <longman(a)redhat.com> clocksource: Use pr_info() for "Checking clocksource synchronization" message Filipe Manana <fdmanana(a)suse.com> btrfs: fix hole expansion when writing at an offset beyond EOF Wentao Liang <vulab(a)iscas.ac.cn> mlxsw: Add return value check for mlxsw_sp_port_get_stats_raw() Andy-ld Lu <andy-ld.lu(a)mediatek.com> mmc: mtk-sd: Fix register settings for hs400(es) mode Nathan Chancellor <nathan(a)kernel.org> arm64: Handle .ARM.attributes section in linker scripts Jiasheng Jiang <jiashengjiangcool(a)gmail.com> regmap-irq: Add missing kfree() Jann Horn <jannh(a)google.com> partitions: mac: fix handling of bogus partition table Wentao Liang <vulab(a)iscas.ac.cn> gpio: stmpe: Check return value of stmpe_reg_read in stmpe_gpio_irq_sync_unlock Mario Limonciello <mario.limonciello(a)amd.com> gpiolib: acpi: Add a quirk for Acer Nitro ANV14 Ivan Kokshaysky <ink(a)unseen.parts> alpha: align stack for page fault and user unaligned trap handlers John Keeping <jkeeping(a)inmusicbrands.com> serial: 8250: Fix fifo underflow on flush Shakeel Butt <shakeel.butt(a)linux.dev> cgroup: fix race between fork and cgroup.kill Ard Biesheuvel <ardb(a)kernel.org> efi: Avoid cold plugged memory for placing the kernel Ivan Kokshaysky <ink(a)unseen.parts> alpha: make stack 16-byte aligned (most cases) Alexander Hölzl <alexander.hoelzl(a)gmx.net> can: j1939: j1939_sk_send_loop(): fix unable to send messages with data length zero Krzysztof Kozlowski <krzysztof.kozlowski(a)linaro.org> can: c_can: fix unbalanced runtime PM disable in error path Fedor Pchelkin <pchelkin(a)ispras.ru> can: ctucanfd: handle skb allocation failure Johan Hovold <johan(a)kernel.org> USB: serial: option: drop MeiG Smart defines Fabio Porcedda <fabio.porcedda(a)gmail.com> USB: serial: option: fix Telit Cinterion FN990A name Fabio Porcedda <fabio.porcedda(a)gmail.com> USB: serial: option: add Telit Cinterion FN990B compositions Chester A. Unal <chester.a.unal(a)arinc9.com> USB: serial: option: add MeiG Smart SLM828 Jann Horn <jannh(a)google.com> usb: cdc-acm: Fix handling of oversized fragments Jann Horn <jannh(a)google.com> usb: cdc-acm: Check control transfer buffer size before access Marek Vasut <marek.vasut+renesas(a)mailbox.org> USB: cdc-acm: Fill in Renesas R-Car D3 USB Download mode quirk Alan Stern <stern(a)rowland.harvard.edu> USB: hub: Ignore non-compliant devices with too many configs or interfaces John Keeping <jkeeping(a)inmusicbrands.com> usb: gadget: f_midi: fix MIDI Streaming descriptor lengths Mathias Nyman <mathias.nyman(a)linux.intel.com> USB: Add USB_QUIRK_NO_LPM quirk for sony xperia xz1 smartphone Lei Huang <huanglei(a)kylinos.cn> USB: quirks: add USB_QUIRK_NO_LPM quirk for Teclast dist Stefan Eichenberger <stefan.eichenberger(a)toradex.com> usb: core: fix pipe creation for get_bMaxPacketSize0 Huacai Chen <chenhuacai(a)kernel.org> USB: pci-quirks: Fix HCCPARAMS register error for LS7A EHCI Fabrice Gasnier <fabrice.gasnier(a)foss.st.com> usb: dwc2: gadget: remove of_node reference upon udc_stop Guo Ren <guoren(a)kernel.org> usb: gadget: udc: renesas_usb3: Fix compiler warning Elson Roy Serrao <quic_eserrao(a)quicinc.com> usb: roles: set switch registered flag early on Selvarasu Ganesan <selvarasu.g(a)samsung.com> usb: dwc3: Fix timeout issue during controller enter/exit from halt state Sean Christopherson <seanjc(a)google.com> perf/x86/intel: Ensure LBRs are disabled when a CPU is starting Sean Christopherson <seanjc(a)google.com> KVM: nSVM: Enter guest mode before initializing nested NPT MMU Sean Christopherson <seanjc(a)google.com> KVM: x86: Reject Hyper-V's SEND_IPI hypercalls if local APIC isn't in-kernel Jiang Liu <gerry(a)linux.alibaba.com> drm/amdgpu: avoid buffer overflow attach in smu_sys_set_pp_table() Sven Eckelmann <sven(a)narfation.org> batman-adv: Drop unmanaged ELP metric worker Sven Eckelmann <sven(a)narfation.org> batman-adv: Ignore neighbor throughput metrics in error case Andy Strohman <andrew(a)andrewstrohman.com> batman-adv: fix panic during interface removal Hans de Goede <hdegoede(a)redhat.com> ASoC: Intel: bytcr_rt5640: Add DMI quirk for Vexia Edu Atla 10 tablet 5V Mike Marshall <hubcap(a)omnibond.com> orangefs: fix a oob in orangefs_debug_write Rik van Riel <riel(a)fb.com> x86/mm/tlb: Only trim the mm_cpumask once a second Koichiro Den <koichiro.den(a)canonical.com> selftests: gpio: gpio-sim: Fix missing chip disablements Maksym Planeta <maksym(a)exostellar.io> Grab mm lock before grabbing pt lock Ramesh Thomas <ramesh.thomas(a)intel.com> vfio/pci: Enable iowrite64 and ioread64 for vfio pci Tomas Glozar <tglozar(a)redhat.com> rtla/timerlat_top: Abort event processing on second signal Tomas Glozar <tglozar(a)redhat.com> rtla/timerlat_hist: Abort event processing on second signal Guixin Liu <kanie(a)linux.alibaba.com> scsi: ufs: bsg: Set bsg_queue to NULL after removal Rakesh Babu Saladi <Saladi.Rakeshbabu(a)microchip.com> PCI: switchtec: Add Microchip PCI100X device IDs Takashi Iwai <tiwai(a)suse.de> PCI/DPC: Quirk PIO log size for Intel Raptor Lake-P Edward Adam Davis <eadavis(a)qq.com> media: vidtv: Fix a null-ptr-deref in vidtv_mux_stop_thread Arnd Bergmann <arnd(a)arndb.de> media: cxd2841er: fix 64-bit division on gcc-9 Aaro Koskinen <aaro.koskinen(a)iki.fi> fbdev: omap: use threaded IRQ for LCD DMA Michael Margolin <mrgolin(a)amazon.com> RDMA/efa: Reset device on probe failure Juergen Gross <jgross(a)suse.com> x86/xen: allow larger contiguous memory regions in PV guests Petr Tesarik <petr.tesarik.ext(a)huawei.com> xen: remove a confusing comment on auto-translated guest I/O Juergen Gross <jgross(a)suse.com> xen/swiotlb: relax alignment requirements Artur Weber <aweber.kernel(a)gmail.com> gpio: bcm-kona: Add missing newline to dev_err format string Artur Weber <aweber.kernel(a)gmail.com> gpio: bcm-kona: Make sure GPIO bits are unlocked when requesting IRQ Artur Weber <aweber.kernel(a)gmail.com> gpio: bcm-kona: Fix GPIO lock/unlock for banks above bank 0 Krzysztof Karas <krzysztof.karas(a)intel.com> drm/i915/selftests: avoid using uninitialized context Muhammad Adeel <Muhammad.Adeel(a)ibm.com> cgroup: Remove steal time from usage_usec Radu Rendec <rrendec(a)redhat.com> arm64: cacheinfo: Avoid out-of-bounds write to cacheinfo array Eric Dumazet <edumazet(a)google.com> team: better TEAM_OPTION_TYPE_STRING validation Eric Dumazet <edumazet(a)google.com> vxlan: check vxlan_vnigroup_init() return value Eric Dumazet <edumazet(a)google.com> vrf: use RCU protection in l3mdev_l3_out() Eric Dumazet <edumazet(a)google.com> ndisc: ndisc_send_redirect() must use dev_get_by_index_rcu() Murad Masimov <m.masimov(a)mt-integration.ru> ax25: Fix refcount leak caused by setting SO_BINDTODEVICE sockopt Tulio Fernandes <tuliomf09(a)gmail.com> HID: hid-thrustmaster: fix stack-out-of-bounds read in usb_check_int_endpoints() Charles Han <hanchunchao(a)inspur.com> HID: multitouch: Add NULL check in mt_input_configured Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> pinctrl: cy8c95x0: Respect IRQ trigger settings from firmware Dai Ngo <dai.ngo(a)oracle.com> NFSD: fix hang in nfsd4_shutdown_callback Li Lingfeng <lilingfeng3(a)huawei.com> nfsd: clear acl_access/acl_default after releasing them Filipe Manana <fdmanana(a)suse.com> btrfs: avoid monopolizing a core when activating a swap file Koichiro Den <koichiro.den(a)canonical.com> Revert "btrfs: avoid monopolizing a core when activating a swap file" Calvin Owens <calvin(a)wbinvd.org> pps: Fix a use-after-free Wei Yang <richard.weiyang(a)gmail.com> maple_tree: simplify split calculation Liam R. Howlett <Liam.Howlett(a)oracle.com> maple_tree: fix static analyser cppcheck issue Sean Anderson <sean.anderson(a)linux.dev> tty: xilinx_uartps: split sysrq handling Paolo Abeni <pabeni(a)redhat.com> mptcp: prevent excessive coalescing on receive Matthieu Baerts (NGI0) <matttbe(a)kernel.org> mptcp: pm: only set fullmesh for subflow endp Zizhi Wo <wozizhi(a)huawei.com> cachefiles: Fix NULL pointer dereference in object->file Su Yue <glass.su(a)suse.com> ocfs2: check dir i_size in ocfs2_find_entry Bartosz Golaszewski <bartosz.golaszewski(a)linaro.org> gpio: xilinx: remove excess kernel doc Paul Fertser <fercerpav(a)gmail.com> net/ncsi: use dev_set_mac_address() for Get MC MAC Address handling WangYuli <wangyuli(a)uniontech.com> MIPS: ftrace: Declare ftrace_get_parent_ra_addr() as static Pavel Begunkov <asml.silence(a)gmail.com> io_uring/rw: commit provided buffer state on async Pavel Begunkov <asml.silence(a)gmail.com> io_uring: fix io_req_prep_async with provided buffers Pavel Begunkov <asml.silence(a)gmail.com> io_uring: fix multishots with selected buffers Michal Simek <michal.simek(a)amd.com> rtc: zynqmp: Fix optional clock name property Thomas Weißschuh <linux(a)weissschuh.net> ptp: Ensure info->enable callback is always set Javier Carrasco <javier.carrasco.cruz(a)gmail.com> pinctrl: samsung: fix fwnode refcount cleanup if platform_get_irq_optional() fails Tomas Glozar <tglozar(a)redhat.com> rtla/timerlat_top: Stop timerlat tracer on signal Tomas Glozar <tglozar(a)redhat.com> rtla/timerlat_hist: Stop timerlat tracer on signal Tomas Glozar <tglozar(a)redhat.com> rtla: Add trace_instance_stop Tomas Glozar <tglozar(a)redhat.com> rtla/osnoise: Distinguish missing workload option Milos Reljin <milos_reljin(a)outlook.com> net: phy: c45-tjaxx: add delay between MDIO write and read in soft_reset Paul Fertser <fercerpav(a)gmail.com> net/ncsi: wait for the last response to Deselect Package before configuring channel Ekansh Gupta <quic_ekangupt(a)quicinc.com> misc: fastrpc: Fix copy buffer page size Ekansh Gupta <quic_ekangupt(a)quicinc.com> misc: fastrpc: Fix registered buffer page address Anandu Krishnan E <quic_anane(a)quicinc.com> misc: fastrpc: Deregister device nodes properly in error scenarios Ivan Stepchenko <sid(a)itb.spb.ru> mtd: onenand: Fix uninitialized retlen in do_otp_read() Nick Chan <towinchenmi(a)gmail.com> irqchip/apple-aic: Only handle PMC interrupt as FIQ when configured so Frank Li <Frank.Li(a)nxp.com> i3c: master: Fix missing 'ret' assignment in set_speed() Dan Carpenter <dan.carpenter(a)linaro.org> NFC: nci: Add bounds checking in nci_hci_create_pipe() Pekka Pessi <ppessi(a)nvidia.com> mailbox: tegra-hsp: Clear mailbox before using message Nikita Zhandarovich <n.zhandarovich(a)fintech.ru> nilfs2: fix possible int overflows in nilfs_fiemap() Matthew Wilcox (Oracle) <willy(a)infradead.org> ocfs2: handle a symlink read error correctly Heming Zhao <heming.zhao(a)suse.com> ocfs2: fix incorrect CPU endianness conversion causing mount failure Mike Snitzer <snitzer(a)kernel.org> pnfs/flexfiles: retry getting layout segment for reads Matthieu Baerts (NGI0) <matttbe(a)kernel.org> selftests: mptcp: connect: -f: no reconnect Alex Williamson <alex.williamson(a)redhat.com> vfio/platform: check the bounds of read/write syscalls Jens Axboe <axboe(a)kernel.dk> io_uring/net: don't retry connect operation on EPOLLERR Jennifer Berringer <jberring(a)redhat.com> nvmem: core: improve range check for nvmem_cell_write() Luca Weiss <luca.weiss(a)fairphone.com> nvmem: qcom-spmi-sdam: Set size in struct nvmem_config Bartosz Golaszewski <bartosz.golaszewski(a)linaro.org> crypto: qce - unregister previously registered algos in error path Bartosz Golaszewski <bartosz.golaszewski(a)linaro.org> crypto: qce - fix goto jump in error path Niklas Cassel <cassel(a)kernel.org> ata: libata-sff: Ensure that we cannot write outside the allocated buffer Catalin Marinas <catalin.marinas(a)arm.com> mm: kmemleak: fix upper boundary check for physical address objects Ricardo Ribalda <ribalda(a)chromium.org> media: uvcvideo: Remove redundant NULL assignment Ricardo Ribalda <ribalda(a)chromium.org> media: uvcvideo: Fix event flags in uvc_ctrl_send_events Mehdi Djait <mehdi.djait(a)linux.intel.com> media: ccs: Fix cleanup order in ccs_probe() Sakari Ailus <sakari.ailus(a)linux.intel.com> media: ccs: Fix CCS static data parsing for large block sizes Sam Bobrowicz <sam(a)elite-embedded.com> media: ov5640: fix get_light_freq on auto Cosmin Tanislav <demonsingur(a)gmail.com> media: mc: fix endpoint iteration Krzysztof Kozlowski <krzysztof.kozlowski(a)linaro.org> soc: qcom: smem_state: fix missing of_node_put in error path Javier Carrasco <javier.carrasco.cruz(a)gmail.com> iio: light: as73211: fix channel handling in only-color triggered buffer Sakari Ailus <sakari.ailus(a)linux.intel.com> media: ccs: Clean up parsed CCS static data on parse failure Marco Elver <elver(a)google.com> kfence: skip __GFP_THISNODE allocations on NUMA systems Gabriele Monaco <gmonaco(a)redhat.com> rv: Reset per-task monitors also for idle tasks Aubrey Li <aubrey.li(a)linux.intel.com> ACPI: PRM: Remove unnecessary strict handler address checks Wentao Liang <vulab(a)iscas.ac.cn> xfs: Add error handling for xfs_reflink_cancel_cow_range Sumit Gupta <sumitg(a)nvidia.com> arm64: tegra: Disable Tegra234 sce-fabric node Eric Biggers <ebiggers(a)google.com> crypto: qce - fix priority to be less than ARMv8 CE Krzysztof Kozlowski <krzysztof.kozlowski(a)linaro.org> arm64: dts: qcom: sm8450: Fix MPSS memory length Krzysztof Kozlowski <krzysztof.kozlowski(a)linaro.org> arm64: dts: qcom: sm8350: Fix MPSS memory length Krzysztof Kozlowski <krzysztof.kozlowski(a)linaro.org> arm64: dts: qcom: sm6350: Fix MPSS memory length Krzysztof Kozlowski <krzysztof.kozlowski(a)linaro.org> arm64: dts: qcom: sm6350: Fix ADSP memory length Nathan Chancellor <nathan(a)kernel.org> x86/boot: Use '-std=gnu11' to fix build with GCC 15 Nathan Chancellor <nathan(a)kernel.org> kbuild: Move -Wenum-enum-conversion to W=2 Long Li <longli(a)microsoft.com> scsi: storvsc: Set correct data length for sending SCSI command without payload Quinn Tran <qutran(a)marvell.com> scsi: qla2xxx: Move FCE Trace buffer allocation to user control Georg Gottleuber <ggo(a)tuxedocomputers.com> nvme-pci: Add TUXEDO IBP Gen9 to Samsung sleep quirk Georg Gottleuber <ggo(a)tuxedocomputers.com> nvme-pci: Add TUXEDO InfinityFlex to Samsung sleep quirk Zijun Hu <quic_zijuhu(a)quicinc.com> PCI: endpoint: Finish virtual EP removal in pci_epf_remove_vepf() Brad Griffis <bgriffis(a)nvidia.com> arm64: tegra: Fix Tegra234 PCIe interrupt-map Kuan-Wei Chiu <visitorckw(a)gmail.com> ALSA: hda: Fix headset detection failure due to unstable sort Edson Juliano Drosdeck <edson.drosdeck(a)gmail.com> ALSA: hda/realtek: Enable headset mic on Positivo C6400 Thadeu Lima de Souza Cascardo <cascardo(a)igalia.com> Revert "media: uvcvideo: Require entities to have a non-zero unique ID" Jens Axboe <axboe(a)kernel.dk> block: don't revert iter for -EIOCBQUEUED Mateusz Jończyk <mat.jonczyk(a)o2.pl> mips/math-emu: fix emulation of the prefx instruction Hou Tao <houtao1(a)huawei.com> dm-crypt: track tag_offset in convert_context Hou Tao <houtao1(a)huawei.com> dm-crypt: don't update io->sector after kcryptd_crypt_write_io_submit() Narayana Murty N <nnmlinux(a)linux.ibm.com> powerpc/pseries/eeh: Fix get PE state translation Kexy Biscuit <kexybiscuit(a)aosc.io> MIPS: Loongson64: remove ROM Size unit in boardinfo Claudiu Beznea <claudiu.beznea.uj(a)bp.renesas.com> serial: sh-sci: Do not probe the serial port if its slot in sci_ports[] is in use Claudiu Beznea <claudiu.beznea.uj(a)bp.renesas.com> serial: sh-sci: Drop __initdata macro for port_cfg Stephan Gerhold <stephan.gerhold(a)linaro.org> soc: qcom: socinfo: Avoid out of bounds read of serial number Mario Limonciello <mario.limonciello(a)amd.com> ASoC: acp: Support microphone from Lenovo Go S Thinh Nguyen <Thinh.Nguyen(a)synopsys.com> usb: gadget: f_tcm: Don't prepare BOT write request twice Thinh Nguyen <Thinh.Nguyen(a)synopsys.com> usb: gadget: f_tcm: ep_autoconfig with fullspeed endpoint Thinh Nguyen <Thinh.Nguyen(a)synopsys.com> usb: gadget: f_tcm: Decrement command ref count on cleanup Thinh Nguyen <Thinh.Nguyen(a)synopsys.com> usb: gadget: f_tcm: Translate error to sense Marcel Hamer <marcel.hamer(a)windriver.com> wifi: brcmfmac: fix NULL pointer dereference in brcmf_txfinalize() Bitterblue Smith <rtl8821cerfe2(a)gmail.com> wifi: rtlwifi: rtl8821ae: Fix media status report Heiko Stuebner <heiko(a)sntech.de> HID: hid-sensor-hub: don't use stale platform-data on remove Zijun Hu <quic_zijuhu(a)quicinc.com> of: reserved-memory: Fix using wrong number of cells to get property 'alignment' Zijun Hu <quic_zijuhu(a)quicinc.com> of: Fix of_find_node_opts_by_path() handling of alias+path+options Zijun Hu <quic_zijuhu(a)quicinc.com> of: Correct child specifier used as input of the 2nd nexus node Bao D. Nguyen <quic_nguyenb(a)quicinc.com> scsi: ufs: core: Fix the HIGH/LOW_TEMP Bit Definitions Nathan Chancellor <nathan(a)kernel.org> efi: libstub: Use '-std=gnu11' to fix build with GCC 15 Zijun Hu <quic_zijuhu(a)quicinc.com> blk-cgroup: Fix class @block_class's subsystem refcount leakage Anastasia Belova <abelova(a)astralinux.ru> clk: qcom: clk-rpmh: prevent integer overflow in recalc_rate Satya Priya Kakitapalli <quic_skakitap(a)quicinc.com> clk: qcom: gcc-mdm9607: Fix cmd_rcgr offset for blsp1_uart6 rcg Luca Weiss <luca.weiss(a)fairphone.com> clk: qcom: dispcc-sm6350: Add missing parent_map for a clock Luca Weiss <luca.weiss(a)fairphone.com> clk: qcom: gcc-sm6350: Add missing parent_map for two clocks Gabor Juhos <j4g8y7(a)gmail.com> clk: qcom: clk-alpha-pll: fix alpha mode configuration Cody Eksal <masterr3c0rd(a)epochal.quest> clk: sunxi-ng: a100: enable MMC clock reparenting Fedor Pchelkin <pchelkin(a)ispras.ru> Bluetooth: L2CAP: accept zero as a special value for MTU auto-selection Fedor Pchelkin <pchelkin(a)ispras.ru> Bluetooth: L2CAP: handle NULL sock pointer in l2cap_sock_alloc Ville Syrjälä <ville.syrjala(a)linux.intel.com> drm/i915: Drop 64bpp YUV formats from ICL+ SDR planes Haoxiang Li <haoxiang_li2024(a)163.com> drm/komeda: Add check for komeda_get_layer_fourcc_list() Daniele Ceraolo Spurio <daniele.ceraolospurio(a)intel.com> drm/i915/guc: Debug print LRC state entries only if the context is pinned Tom Chung <chiahsuan.chung(a)amd.com> Revert "drm/amd/display: Use HW lock mgr for PSR1" Lijo Lazar <lijo.lazar(a)amd.com> drm/amd/pm: Mark MM activity as unsupported Dan Carpenter <dan.carpenter(a)linaro.org> ksmbd: fix integer overflows on 32 bit systems David Hildenbrand <david(a)redhat.com> KVM: s390: vsie: fix some corner-cases when grabbing vsie pages Sean Christopherson <seanjc(a)google.com> KVM: Explicitly verify target vCPU is online in kvm_get_vcpu() Jakob Unterwurzacher <jakobunt(a)gmail.com> arm64: dts: rockchip: increase gmac rx_delay on rk3399-puma Thomas Zimmermann <tzimmermann(a)suse.de> drm/rockchip: cdn-dp: Use drm_connector_helper_hpd_irq_event() Dan Carpenter <dan.carpenter(a)linaro.org> binfmt_flat: Fix integer overflow bug on 32 bit systems Nam Cao <namcao(a)linutronix.de> fs/proc: do_task_stat: Fix ESP not readable during coredump Thomas Zimmermann <tzimmermann(a)suse.de> m68k: vga: Fix I/O defines Heiko Carstens <hca(a)linux.ibm.com> s390/futex: Fix FUTEX_OP_ANDN implementation Meetakshi Setiya <msetiya(a)microsoft.com> smb: client: change lease epoch type from unsigned int to __u16 Maarten Lankhorst <dev(a)lankhorst.se> drm/modeset: Handle tiled displays in pan_display_atomic. Sebastian Wiese-Wagner <seb(a)fastmail.to> ALSA: hda/realtek: Enable Mute LED on HP Laptop 14s-fq1xxx Alexander Sverdlin <alexander.sverdlin(a)siemens.com> leds: lp8860: Write full EEPROM, not only half of it Viresh Kumar <viresh.kumar(a)linaro.org> cpufreq: s3c64xx: Fix compilation warning Ido Schimmel <idosch(a)nvidia.com> net: sched: Fix truncation of offloaded action statistics Willem de Bruijn <willemb(a)google.com> tun: revert fix group permission check Cong Wang <cong.wang(a)bytedance.com> netem: Update sch->q.qlen before qdisc_tree_reduce_backlog() Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> ACPI: property: Fix return value for nval == 0 in acpi_data_prop_read() Juergen Gross <jgross(a)suse.com> x86/xen: add FRAME_END to xen_hypercall_hvm() Juergen Gross <jgross(a)suse.com> x86/xen: fix xen_hypercall_hvm() to not clobber %rbx Eric Dumazet <edumazet(a)google.com> net: rose: lock the socket in rose_bind() Jacob Moroni <mail(a)jakemoroni.com> net: atlantic: fix warning during hot unplug Mark Tomlinson <mark.tomlinson(a)alliedtelesis.co.nz> gpio: pca953x: Improve interrupt support Yan Zhai <yan(a)cloudflare.com> udp: gso: do not drop small packets when PMTU reduces Lenny Szubowicz <lszubowi(a)redhat.com> tg3: Disable tg3 PCIe AER on system reboot Hans Verkuil <hverkuil(a)xs4all.nl> gpu: drm_dp_cec: fix broken CEC adapter properties check Prasad Pandit <pjp(a)fedoraproject.org> firmware: iscsi_ibft: fix ISCSI_IBFT Kconfig entry Daniel Wagner <wagi(a)kernel.org> nvme: handle connectivity loss in nvme_set_queue_count Darrick J. Wong <djwong(a)kernel.org> xfs: don't over-report free space or inodes in statvfs Darrick J. Wong <djwong(a)kernel.org> xfs: report realtime block quota limits on realtime directories Sean Anderson <sean.anderson(a)linux.dev> gpio: xilinx: Convert gpio_lock to raw spinlock Linus Walleij <linus.walleij(a)linaro.org> gpio: xilinx: Convert to immutable irq_chip Paul Fertser <fercerpav(a)gmail.com> net/ncsi: fix locking in Get MAC Address handling Peter Delevoryas <peter(a)pjd.dev> net/ncsi: Add NC-SI 1.2 Get MC MAC Address command Joe Hattori <joe(a)pf.is.s.u-tokyo.ac.jp> usb: chipidea: ci_hdrc_imx: decrement device's refcount in .remove() and in the error path of .probe() Uwe Kleine-König <u.kleine-koenig(a)pengutronix.de> usb: chipidea/ci_hdrc_imx: Convert to platform remove callback returning void Paolo Bonzini <pbonzini(a)redhat.com> KVM: e500: always restore irqs Sean Christopherson <seanjc(a)google.com> KVM: PPC: e500: Use __kvm_faultin_pfn() to handle page faults Sean Christopherson <seanjc(a)google.com> KVM: PPC: e500: Mark "struct page" pfn accessed before dropping mmu_lock Sean Christopherson <seanjc(a)google.com> KVM: PPC: e500: Mark "struct page" dirty in kvmppc_e500_shadow_map() Armin Wolf <W_Armin(a)gmx.de> platform/x86: acer-wmi: Ignore AC events Illia Ostapyshyn <illia(a)yshyn.com> Input: allocate keycode for phone linking Yu-Chun Lin <eleanor15x(a)gmail.com> ASoC: amd: Add ACPI dependency to fix build error Kuninori Morimoto <kuninori.morimoto.gx(a)renesas.com> ASoC: soc-pcm: don't use soc_pcm_ret() on .prepare callback Hans de Goede <hdegoede(a)redhat.com> platform/x86: int3472: Check for adev == NULL Robin Murphy <robin.murphy(a)arm.com> iommu/arm-smmu-v3: Clean up more on probe failure David Woodhouse <dwmw(a)amazon.co.uk> x86/kexec: Allocate PGD for x86_64 transition page tables separately Liu Ye <liuye(a)kylinos.cn> selftests/net/ipsec: Fix Null pointer dereference in rtattr_pack() Dan Carpenter <dan.carpenter(a)linaro.org> tipc: re-order conditions in tipc_crypto_key_rcv() Yuanjie Yang <quic_yuanjiey(a)quicinc.com> mmc: sdhci-msm: Correctly set the load for the regulator Maciej S. Szmigiero <mail(a)maciej.szmigiero.name> net: wwan: iosm: Fix hibernation by re-binding the driver around it Mazin Al Haddad <mazin(a)getstate.dev> Bluetooth: MGMT: Fix slab-use-after-free Read in mgmt_remove_adv_monitor_sync Borislav Petkov <bp(a)alien8.de> APEI: GHES: Have GHES honor the panic= setting Randolph Ha <rha051117(a)gmail.com> i2c: Force ELAN06FA touchpad I2C bus freq to 100KHz Miri Korenblit <miriam.rachel.korenblit(a)intel.com> wifi: iwlwifi: avoid memory leak Stefan Dösinger <stefan(a)codeweavers.com> wifi: brcmfmac: Check the return value of of_property_read_string_index() Vadim Fedorenko <vadfed(a)meta.com> net/mlx5: use do_aux_work for PHC overflow checks Even Xu <even.xu(a)intel.com> HID: Wacom: Add PCI Wacom device support Hans de Goede <hdegoede(a)redhat.com> mfd: lpc_ich: Add another Gemini Lake ISA bridge PCI device-id Tetsuo Handa <penguin-kernel(a)I-love.SAKURA.ne.jp> tomoyo: don't emit warning in tomoyo_write_control() Dmitry Antipov <dmantipov(a)yandex.ru> wifi: brcmsmac: add gain range check to wlc_phy_iqcal_gainparams_nphy() Shawn Lin <shawn.lin(a)rock-chips.com> mmc: core: Respect quirk_max_rate for non-UHS SDIO card Stas Sergeev <stsp2(a)yandex.ru> tun: fix group permission check Leo Stone <leocstone(a)gmail.com> safesetid: check size of policy writes Hermes Wu <hermes.wu(a)ite.com.tw> drm/bridge: it6505: fix HDCP CTS compare V matching Hermes Wu <hermes.wu(a)ite.com.tw> drm/bridge: it6505: fix HDCP encryption when R0 ready Hermes Wu <hermes.wu(a)ite.com.tw> drm/bridge: it6505: fix HDCP Bstatus check Hermes Wu <hermes.wu(a)ite.com.tw> drm/bridge: it6505: Change definition MAX_HDCP_DOWN_STREAM_COUNT Fangzhi Zuo <Jerry.Zuo(a)amd.com> drm/amd/display: Fix Mode Cutoff in DSC Passthrough to DP2.1 Monitor Kuan-Wei Chiu <visitorckw(a)gmail.com> printk: Fix signed integer overflow when defining LOG_BUF_LEN_MAX Dongwon Kim <dongwon.kim(a)intel.com> drm/virtio: New fence for every plane update Yazen Ghannam <yazen.ghannam(a)amd.com> x86/amd_nb: Restrict init function to AMD-based systems Carlos Llamas <cmllamas(a)google.com> lockdep: Fix upper limit for LOCKDEP_*_BITS configs Suleiman Souhlal <suleiman(a)google.com> sched: Don't try to catch up excess steal time. Josef Bacik <josef(a)toxicpanda.com> btrfs: convert BUG_ON in btrfs_reloc_cow_block() to proper error handling Hao-ran Zheng <zhenghaoran154(a)gmail.com> btrfs: fix data race when accessing the inode's disk_i_size at btrfs_drop_extents() Kees Cook <kees(a)kernel.org> exec: fix up /proc/pid/comm in the execveat(AT_EMPTY_PATH) case Anshuman Khandual <anshuman.khandual(a)arm.com> arm64/mm: Ensure adequate HUGE_MAX_HSTATE Filipe Manana <fdmanana(a)suse.com> btrfs: fix use-after-free when attempting to join an aborted transaction Antonio Borneo <antonio.borneo(a)foss.st.com> pinctrl: stm32: fix array read out of bound Nathan Chancellor <nathan(a)kernel.org> s390: Add '-std=gnu11' to decompressor and purgatory CFLAGS Thomas Weißschuh <linux(a)weissschuh.net> ptp: Properly handle compat ioctls Qu Wenruo <wqu(a)suse.com> btrfs: output the reason for open_ctree() failure Dan Carpenter <dan.carpenter(a)linaro.org> media: imx-jpeg: Fix potential error pointer dereference in detach_pm() Laurentiu Palcu <laurentiu.palcu(a)oss.nxp.com> staging: media: max96712: fix kernel oops when removing module Thinh Nguyen <Thinh.Nguyen(a)synopsys.com> usb: gadget: f_tcm: Don't free command immediately Laurent Pinchart <laurent.pinchart(a)ideasonboard.com> media: uvcvideo: Fix double free in error path Arnaud Pouliquen <arnaud.pouliquen(a)foss.st.com> remoteproc: core: Fix ida_free call while not allocated Paolo Abeni <pabeni(a)redhat.com> mptcp: handle fastopen disconnect correctly Paolo Abeni <pabeni(a)redhat.com> mptcp: consolidate suboption status Kyle Tso <kyletso(a)google.com> usb: typec: tcpci: Prevent Sink disconnection before vPpsShutdown in SPR PPS Jos Wang <joswang(a)lenovo.com> usb: typec: tcpm: set SRC_SEND_CAPABILITIES timeout to PD_T_SENDER_RESPONSE Kyle Tso <kyletso(a)google.com> usb: dwc3: core: Defer the probe until USB power supply ready Joe Hattori <joe(a)pf.is.s.u-tokyo.ac.jp> usb: dwc3-am62: Fix an OF node leak in phy_syscon_pll_refclk() Thinh Nguyen <Thinh.Nguyen(a)synopsys.com> usb: gadget: f_tcm: Fix Get/SetInterface return value Sean Rhodes <sean(a)starlabs.systems> drivers/card_reader/rtsx_usb: Restore interrupt based detection Michal Pecio <michal.pecio(a)gmail.com> usb: xhci: Fix NULL pointer dereference on certain command aborts Nikita Zhandarovich <n.zhandarovich(a)fintech.ru> net: usb: rtl8150: enable basic endpoint checking Lianqin Hu <hulianqin(a)vivo.com> ALSA: usb-audio: Add delay quirk for iBasso DC07 Pro Ricardo B. Marliere <rbm(a)suse.com> ktest.pl: Check kernelrelease return in get_version Tim Huang <tim.huang(a)amd.com> drm/amd/display: fix double free issue during amdgpu module unload Puranjay Mohan <pjy(a)amazon.com> nvme: fix metadata handling in nvme-passthrough Pablo Neira Ayuso <pablo(a)netfilter.org> netfilter: nf_tables: reject mismatching sum of field_len with set key length Parth Pancholi <parth.pancholi(a)toradex.com> kbuild: switch from lz4c to lz4 for compression Chuck Lever <chuck.lever(a)oracle.com> NFSD: Reset cb_seq_status after NFS4ERR_DELAY Daniel Lee <chullee(a)google.com> f2fs: Introduce linear search for dentries Lin Yujun <linyujun809(a)huawei.com> hexagon: Fix unbalanced spinlock in die() Willem de Bruijn <willemb(a)google.com> hexagon: fix using plain integer as NULL pointer warning in cmpxchg Masahiro Yamada <masahiroy(a)kernel.org> kconfig: fix memory leak in sym_warn_unmet_dep() Sergey Senozhatsky <senozhatsky(a)chromium.org> kconfig: WERROR unmet symbol dependency Masahiro Yamada <masahiroy(a)kernel.org> kconfig: deduplicate code in conf_read_simple() Masahiro Yamada <masahiroy(a)kernel.org> kconfig: remove unused code for S_DEF_AUTO in conf_read_simple() Masahiro Yamada <masahiroy(a)kernel.org> kconfig: require a space after '#' for valid input Sergey Senozhatsky <senozhatsky(a)chromium.org> kconfig: add warn-unknown-symbols sanity check Masahiro Yamada <masahiroy(a)kernel.org> kconfig: fix file name in warnings when loading KCONFIG_DEFCONFIG_LIST Detlev Casanova <detlev.casanova(a)collabora.com> ASoC: rockchip: i2s_tdm: Re-add the set_sysclk callback Masahiro Yamada <masahiroy(a)kernel.org> genksyms: fix memory leak when the same symbol is read from *.symref file Masahiro Yamada <masahiroy(a)kernel.org> genksyms: fix memory leak when the same symbol is added from source Eric Dumazet <edumazet(a)google.com> net: hsr: fix fill_frame_info() regression vs VLAN packets Kory Maincent <kory.maincent(a)bootlin.com> net: sh_eth: Fix missing rtnl lock in suspend/resume path Rafał Miłecki <rafal(a)milecki.pl> bgmac: reduce max frame size to support just MTU 1500 Chenyuan Yang <chenyuan0y(a)gmail.com> net: davicom: fix UAF in dm9000_drv_remove Shigeru Yoshida <syoshida(a)redhat.com> vxlan: Fix uninit-value in vxlan_vnifilter_dump() Jakub Kicinski <kuba(a)kernel.org> net: netdevsim: try to close UDP port harness races Eric Dumazet <edumazet(a)google.com> net: rose: fix timer races against user threads Michal Swiatkowski <michal.swiatkowski(a)linux.intel.com> iavf: allow changing VLAN state without calling PF Wentao Liang <vulab(a)iscas.ac.cn> PM: hibernate: Add error handling for syscore_suspend() Eric Dumazet <edumazet(a)google.com> ipmr: do not call mr_mfc_uses_dev() for unres entries Dheeraj Reddy Jonnalagadda <dheeraj.linuxdev(a)gmail.com> net: fec: implement TSO descriptor cleanup Ahmad Fatoum <a.fatoum(a)pengutronix.de> gpio: mxc: remove dead code after switch to DT-only Jian Shen <shenjian15(a)huawei.com> net: hns3: fix oops when unload drivers paralleling Alexander Stein <alexander.stein(a)ew.tq-group.com> regulator: core: Add missing newline character pangliyuan <pangliyuan1(a)huawei.com> ubifs: skip dumping tnc tree when zroot is null Oleksij Rempel <linux(a)rempel-privat.de> rtc: pcf85063: fix potential OOB write in PCF85063 NVMEM read Joe Hattori <joe(a)pf.is.s.u-tokyo.ac.jp> dmaengine: ti: edma: fix OF node reference leaks in edma_driver Jianbo Liu <jianbol(a)nvidia.com> xfrm: replay: Fix the update of replay_esn->oseq_hi for GSO Luo Yifan <luoyifan(a)cmss.chinamobile.com> tools/bootconfig: Fix the wrong format specifier Olga Kornievskaia <okorniev(a)redhat.com> NFSv4.2: mark OFFLOAD_CANCEL MOVEABLE Olga Kornievskaia <okorniev(a)redhat.com> NFSv4.2: fix COPY_NOTIFY xdr buf size calculation John Ogness <john.ogness(a)linutronix.de> serial: 8250: Adjust the timeout for FIFO mode Sebastian Andrzej Siewior <bigeasy(a)linutronix.de> module: Extend the preempt disabled section in dereference_symbol_descriptor(). Su Yue <glass.su(a)suse.com> ocfs2: mark dquot as inactive if failed to start trans while releasing dquot Guixin Liu <kanie(a)linux.alibaba.com> scsi: ufs: bsg: Delete bsg_dev when setting up bsg fails Paul Menzel <pmenzel(a)molgen.mpg.de> scsi: mpt3sas: Set ioc->manu_pg11.EEDPTagMode directly to 1 Manivannan Sadhasivam <mani(a)kernel.org> PCI: endpoint: pci-epf-test: Fix check for DMA MEMCPY test Damien Le Moal <dlemoal(a)kernel.org> PCI: epf-test: Simplify DMA support checks Mohamed Khalfella <khalfella(a)gmail.com> PCI: endpoint: pci-epf-test: Set dma_chan_rx pointer to NULL on error King Dix <kingdix10(a)qq.com> PCI: rcar-ep: Fix incorrect variable used when calling devm_request_mem_region() Joe Hattori <joe(a)pf.is.s.u-tokyo.ac.jp> staging: media: imx: fix OF node leak in imx_media_add_of_subdevs() Joe Hattori <joe(a)pf.is.s.u-tokyo.ac.jp> mtd: hyperbus: hbmc-am654: fix an OF node reference leak Uwe Kleine-König <u.kleine-koenig(a)pengutronix.de> mtd: hyperbus: hbmc-am654: Convert to platform remove callback returning void Ricardo Ribalda <ribalda(a)chromium.org> media: uvcvideo: Propagate buf->error to userspace Jiasheng Jiang <jiashengjiangcool(a)gmail.com> media: camif-core: Add check for clk_enable() Jiasheng Jiang <jiashengjiangcool(a)gmail.com> media: mipi-csis: Add check for clk_enable() Dave Stevenson <dave.stevenson(a)raspberrypi.com> media: i2c: ov9282: Correct the exposure offset Luca Weiss <luca.weiss(a)fairphone.com> media: i2c: imx412: Add missing newline to prints Jiasheng Jiang <jiashengjiangcool(a)gmail.com> media: marvell: Add check for clk_enable() Zijun Hu <quic_zijuhu(a)quicinc.com> PCI: endpoint: Destroy the EPC device in devm_pci_epc_destroy() Chen Ni <nichen(a)iscas.ac.cn> media: lmedm04: Handle errors for lme2510_int_read Oliver Neukum <oneukum(a)suse.com> media: rc: iguanair: handle timeouts Qasim Ijaz <qasdev00(a)gmail.com> iommufd/iova_bitmap: Fix shift-out-of-bounds in iova_bitmap_offset_to_index() Zhu Yanjun <yanjun.zhu(a)linux.dev> RDMA/rxe: Fix the warning "__rxe_cleanup+0x12c/0x170 [rdma_rxe]" Randy Dunlap <rdunlap(a)infradead.org> efi: sysfb_efi: fix W=1 warnings when EFI is not set Zijun Hu <quic_zijuhu(a)quicinc.com> of: reserved-memory: Do not make kmemleak ignore freed address Michael Guralnik <michaelgur(a)nvidia.com> RDMA/mlx5: Fix indirect mkey ODP page count Joe Hattori <joe(a)pf.is.s.u-tokyo.ac.jp> fbdev: omapfb: Fix an OF node leak in dss_of_port_get_parent_device() Rafał Miłecki <rafal(a)milecki.pl> ARM: dts: mediatek: mt7623: fix IR nodename Vladimir Zapolskiy <vladimir.zapolskiy(a)linaro.org> arm64: dts: qcom: sm8250: Fix interrupt types of camss interrupts Vladimir Zapolskiy <vladimir.zapolskiy(a)linaro.org> arm64: dts: qcom: sdm845: Fix interrupt types of camss interrupts Jason-JH.Lin <jason-jh.lin(a)mediatek.com> dts: arm64: mediatek: mt8195: Remove MT8183 compatible for OVL Konrad Dybcio <konrad.dybcio(a)oss.qualcomm.com> arm64: dts: qcom: sc8280xp: Fix up remoteproc register space sizes Neil Armstrong <neil.armstrong(a)linaro.org> arm64: dts: qcom: sm8150-microsoft-surface-duo: fix typos in da7280 properties Neil Armstrong <neil.armstrong(a)linaro.org> arm64: dts: qcom: sc7180-trogdor-pompom: rename 5v-choke thermal zone Konrad Dybcio <konrad.dybcio(a)linaro.org> arm64: dts: qcom: sc7180-*: Remove thermal zone polling delays Luca Weiss <luca.weiss(a)fairphone.com> arm64: dts: qcom: pm6150l: add temp sensor and thermal zone config Neil Armstrong <neil.armstrong(a)linaro.org> arm64: dts: qcom: sc7180-trogdor-quackingstick: add missing avee-supply Nikita Travkin <nikita(a)trvn.ru> arm64: dts: qcom: sc7180: Drop redundant disable in mdp Nikita Travkin <nikita(a)trvn.ru> arm64: dts: qcom: sc7180: Don't enable lpass clocks by default Krzysztof Kozlowski <krzysztof.kozlowski(a)linaro.org> arm64: dts: qcom: sc7180-trogdor-wormdingler: use just "port" in panel Krzysztof Kozlowski <krzysztof.kozlowski(a)linaro.org> arm64: dts: qcom: sc7180-trogdor-quackingstick: use just "port" in panel Krzysztof Kozlowski <krzysztof.kozlowski(a)linaro.org> arm64: dts: qcom: sc7180-idp: use just "port" in panel Bryan O'Donoghue <bryan.odonoghue(a)linaro.org> arm64: dts: qcom: sc7180: Add compat qcom,sc7180-dsi-ctrl Bryan Brattlof <bb(a)ti.com> arm64: dts: ti: k3-am62a: Remove duplicate GICR reg Bryan Brattlof <bb(a)ti.com> arm64: dts: ti: k3-am62: Remove duplicate GICR reg Dmitry Baryshkov <dmitry.baryshkov(a)linaro.org> arm64: dts: qcom: sm8450: correct sleep clock frequency Dmitry Baryshkov <dmitry.baryshkov(a)linaro.org> arm64: dts: qcom: sm8350: correct sleep clock frequency Dmitry Baryshkov <dmitry.baryshkov(a)linaro.org> arm64: dts: qcom: sm8250: correct sleep clock frequency Dmitry Baryshkov <dmitry.baryshkov(a)linaro.org> arm64: dts: qcom: sm6125: correct sleep clock frequency Dmitry Baryshkov <dmitry.baryshkov(a)linaro.org> arm64: dts: qcom: sc7280: correct sleep clock frequency Dmitry Baryshkov <dmitry.baryshkov(a)linaro.org> arm64: dts: qcom: msm8994: correct sleep clock frequency Dmitry Baryshkov <dmitry.baryshkov(a)linaro.org> arm64: dts: qcom: msm8916: correct sleep clock frequency Luca Weiss <luca.weiss(a)fairphone.com> arm64: dts: qcom: sm7225-fairphone-fp4: Drop extra qcom,msm-id value Konrad Dybcio <konrad.dybcio(a)oss.qualcomm.com> arm64: dts: qcom: msm8994: Describe USB interrupts Konrad Dybcio <konrad.dybcio(a)oss.qualcomm.com> arm64: dts: qcom: msm8996: Fix up USB3 interrupts Marek Vasut <marex(a)denx.de> arm64: dts: qcom: msm8996-xiaomi-gemini: Fix LP5562 LED1 reg property Chen-Yu Tsai <wenst(a)chromium.org> arm64: dts: mediatek: mt8183-kukui-jacuzzi: Drop pp3300_panel voltage settings Joe Hattori <joe(a)pf.is.s.u-tokyo.ac.jp> memory: tegra20-emc: fix an OF node reference bug in tegra_emc_find_node_by_ram_code() Ma Ke <make_ruc2021(a)163.com> RDMA/srp: Fix error handling in srp_add_port Hsin-Te Yuan <yuanhsinte(a)chromium.org> arm64: dts: mediatek: mt8183: willow: Support second source touchscreen Hsin-Te Yuan <yuanhsinte(a)chromium.org> arm64: dts: mediatek: mt8183: kenzo: Support second source touchscreen Chen-Yu Tsai <wenst(a)chromium.org> arm64: dts: mediatek: mt8173-evb: Fix MT6397 PMIC sub-node names Chen-Yu Tsai <wenst(a)chromium.org> arm64: dts: mediatek: mt8173-elm: Fix MT6397 PMIC sub-node names Chen-Yu Tsai <wenst(a)chromium.org> arm64: dts: mediatek: mt8195-demo: Drop regulator-compatible property Chen-Yu Tsai <wenst(a)chromium.org> arm64: dts: mediatek: mt8195-cherry: Drop regulator-compatible property Chen-Yu Tsai <wenst(a)chromium.org> arm64: dts: mediatek: mt8192-asurada: Drop regulator-compatible property Chen-Yu Tsai <wenst(a)chromium.org> arm64: dts: mediatek: mt8173-elm: Drop regulator-compatible property Chen-Yu Tsai <wenst(a)chromium.org> arm64: dts: mediatek: mt8173-evb: Drop regulator-compatible property Dan Carpenter <dan.carpenter(a)linaro.org> rdma/cxgb4: Prevent potential integer overflow on 32bit Leon Romanovsky <leon(a)kernel.org> RDMA/mlx4: Avoid false error about access to uninitialized gids array Val Packett <val(a)packett.cool> arm64: dts: mediatek: mt8516: reserve 192 KiB for TF-A Val Packett <val(a)packett.cool> arm64: dts: mediatek: mt8516: add i2c clock-div property Val Packett <val(a)packett.cool> arm64: dts: mediatek: mt8516: fix wdt irq type Val Packett <val(a)packett.cool> arm64: dts: mediatek: mt8516: fix GICv2 range Hsin-Yi Wang <hsinyi(a)chromium.org> arm64: dts: mt8183: set DMIC one-wire mode on Damu Nicolas Ferre <nicolas.ferre(a)microchip.com> ARM: at91: pm: change BU Power Switch to automatic mode Javier Carrasco <javier.carrasco.cruz(a)gmail.com> soc: atmel: fix device_node release in atmel_soc_device_init() Paulo Alcantara <pc(a)manguebit.com> smb: client: fix oops due to unset link speed Chen Ridong <chenridong(a)huawei.com> padata: avoid UAF for reorder_work Chen Ridong <chenridong(a)huawei.com> padata: add pd get/put refcnt helper Chen Ridong <chenridong(a)huawei.com> padata: fix UAF in padata_reorder Kailang Yang <kailang(a)realtek.com> ALSA: hda/realtek - Fixed headphone distorted sound on Acer Aspire A115-31 laptop Daniel Xu <dxu(a)dxuuu.xyz> bpf: tcp: Mark bpf_load_hdr_opt() arg2 as read-write Puranjay Mohan <puranjay(a)kernel.org> bpf: Send signals asynchronously if !preemptible Mingwei Zheng <zmw12306(a)gmail.com> pinctrl: stm32: Add check for clk_enable() Ma Ke <make24(a)iscas.ac.cn> pinctrl: stm32: check devm_kasprintf() returned value Chen Ni <nichen(a)iscas.ac.cn> pinctrl: stm32: Add check for devm_kcalloc Valentin Caron <valentin.caron(a)foss.st.com> pinctrl: stm32: set default gpio line names using pin names Cezary Rojewski <cezary.rojewski(a)intel.com> ASoC: Intel: avs: Fix theoretical infinite loop Thomas Weißschuh <linux(a)weissschuh.net> padata: fix sysfs store callback check Joe Hattori <joe(a)pf.is.s.u-tokyo.ac.jp> crypto: ixp4xx - fix OF node reference leaks in init_ixp_crypto() Wenkai Lin <linwenkai6(a)hisilicon.com> crypto: hisilicon/sec2 - fix for aead invalid authsize Wenkai Lin <linwenkai6(a)hisilicon.com> crypto: hisilicon/sec2 - fix for aead icv error Chenghai Huang <huangchenghai2(a)huawei.com> crypto: hisilicon/sec2 - optimize the error return process Ba Jing <bajing(a)cmss.chinamobile.com> ktest.pl: Remove unused declarations in run_bisect_test function Claudiu Beznea <claudiu.beznea.uj(a)bp.renesas.com> ASoC: renesas: rz-ssi: Use only the proper amount of dividers George Lander <lander(a)jagmn.com> ASoC: sun4i-spdif: Add clock multiplier settings Quentin Monnet <qmo(a)kernel.org> libbpf: Fix segfault due to libelf functions not setting errno Marco Leogrande <leogrande(a)google.com> tools/testing/selftests/bpf/test_tc_tunnel.sh: Fix wait for server bind Andrii Nakryiko <andrii(a)kernel.org> libbpf: don't adjust USDT semaphore address if .stapsdt.base addr is missing Nikita Zhandarovich <n.zhandarovich(a)fintech.ru> net/rose: prevent integer overflows in rose_setsockopt() Mahdi Arghavani <ma.arghavani(a)yahoo.com> tcp_cubic: fix incorrect HyStart round start detection Roger Quadros <rogerq(a)kernel.org> net: ethernet: ti: am65-cpsw: fix freeing IRQ in am65_cpsw_nuss_remove_tx_chns() Florian Westphal <fw(a)strlen.de> netfilter: nft_flow_offload: update tcp state flags under lock Jamal Hadi Salim <jhs(a)mojatatu.com> net: sched: Disallow replacing of child qdisc from one parent to another Antoine Tenart <atenart(a)kernel.org> net: avoid race between device unregistration and ethnl ops Maher Sanalla <msanalla(a)nvidia.com> net/mlxfw: Drop hard coded max FW flash image size Liu Jian <liujian56(a)huawei.com> net: let net.core.dev_weight always be non-zero Mickaël Salaün <mic(a)digikod.net> selftests/landlock: Fix error message Mingwei Zheng <zmw12306(a)gmail.com> pwm: stm32: Add check for clk_enable() Bo Gan <ganboing(a)gmail.com> clk: analogbits: Fix incorrect calculation of vco rate delta Dmitry Antipov <dmantipov(a)yandex.ru> wifi: cfg80211: adjust allocation of colocated AP data Ilan Peer <ilan.peer(a)intel.com> wifi: cfg80211: Handle specific BSSID in 6GHz scanning Dmitry V. Levin <ldv(a)strace.io> selftests: harness: fix printing of mismatch values in __EXPECT() Geert Uytterhoeven <geert+renesas(a)glider.be> selftests: timers: clocksource-switch: Adapt progress to kselftest framework Gautham R. Shenoy <gautham.shenoy(a)amd.com> cpufreq: ACPI: Fix max-frequency computation Peter Chiu <chui-hao.chiu(a)mediatek.com> wifi: mt76: mt7915: fix register mapping Michael Lo <michael.lo(a)mediatek.com> wifi: mt76: mt7921: fix using incorrect group cipher after disconnection. WangYuli <wangyuli(a)uniontech.com> wifi: mt76: mt76u_vendor_request: Do not print error messages when -EPROTO Mickaël Salaün <mic(a)digikod.net> landlock: Handle weird files Guangguan Wang <guangguan.wang(a)linux.alibaba.com> net/smc: fix data error when recvmsg with MSG_PEEK flag Ilan Peer <ilan.peer(a)intel.com> wifi: mac80211: Fix common size calculation for ML element Johannes Berg <johannes.berg(a)intel.com> wifi: mac80211: prohibit deactivating all links Andreas Kemnade <andreas(a)kemnade.info> wifi: wlcore: fix unbalanced pm_runtime calls Zichen Xie <zichenxie0106(a)gmail.com> samples/landlock: Fix possible NULL dereference in parse_path() Rob Herring (Arm) <robh(a)kernel.org> mfd: syscon: Fix race in device_node_get_regmap() Krzysztof Kozlowski <krzysztof.kozlowski(a)linaro.org> mfd: syscon: Use scoped variables with memory allocators to simplify error paths Peter Griffin <peter.griffin(a)linaro.org> mfd: syscon: Add of_syscon_register_regmap() API Peter Griffin <peter.griffin(a)linaro.org> mfd: syscon: Remove extern from function prototypes Karol Przybylski <karprzy7(a)gmail.com> HID: hid-thrustmaster: Fix warning in thrustmaster_probe by adding endpoint check Amit Pundir <amit.pundir(a)linaro.org> clk: qcom: gcc-sdm845: Do not use shared clk_ops for QUPs Joe Hattori <joe(a)pf.is.s.u-tokyo.ac.jp> OPP: OF: Fix an OF node leak in _opp_add_static_v2() Eric Dumazet <edumazet(a)google.com> ax25: rcu protect dev->ax25_ptr Joe Hattori <joe(a)pf.is.s.u-tokyo.ac.jp> regulator: of: Implement the unwind path of of_regulator_match() Octavian Purdila <tavip(a)google.com> team: prevent adding a device which is already a team device lower Marek Vasut <marex(a)denx.de> clk: imx8mp: Fix clkout1/2 support Sultan Alsawaf (unemployed) <sultan(a)kerneltoast.com> cpufreq: schedutil: Fix superfluous updates caused by need_freq_update Mingwei Zheng <zmw12306(a)gmail.com> pwm: stm32-lp: Add check for clk_enable() Eric Dumazet <edumazet(a)google.com> inetpeer: do not get a refcount in inet_getpeer() Eric Dumazet <edumazet(a)google.com> inetpeer: update inetpeer timestamp in inet_getpeer() Eric Dumazet <edumazet(a)google.com> inetpeer: remove create argument of inet_getpeer() Eric Dumazet <edumazet(a)google.com> inetpeer: remove create argument of inet_getpeer_v[46]() Joe Hattori <joe(a)pf.is.s.u-tokyo.ac.jp> leds: netxbig: Fix an OF node reference leak in netxbig_leds_get_of_pdata() Matti Vaittinen <mazziesaccount(a)gmail.com> dt-bindings: mfd: bd71815: Fix rsense and typos He Rongguang <herongguang(a)linux.alibaba.com> cpupower: fix TSC MHz calculation Joe Hattori <joe(a)pf.is.s.u-tokyo.ac.jp> ACPI: fan: cleanup resources in the error path of .probe() Chen-Yu Tsai <wenst(a)chromium.org> regulator: dt-bindings: mt6315: Drop regulator-compatible property Jiri Kosina <jkosina(a)suse.com> HID: multitouch: fix support for Goodix PID 0x01e9 Thadeu Lima de Souza Cascardo <cascardo(a)igalia.com> wifi: rtlwifi: pci: wait for firmware loading before releasing memory Thadeu Lima de Souza Cascardo <cascardo(a)igalia.com> wifi: rtlwifi: fix memory leaks and invalid access at probe error path Thadeu Lima de Souza Cascardo <cascardo(a)igalia.com> wifi: rtlwifi: destroy workqueue at rtl_deinit_core Thadeu Lima de Souza Cascardo <cascardo(a)igalia.com> wifi: rtlwifi: remove unused check_buddy_priv Dmitry Antipov <dmantipov(a)yandex.ru> wifi: rtlwifi: remove unused dualmac control leftovers Dmitry Antipov <dmantipov(a)yandex.ru> wifi: rtlwifi: remove unused timer and related code Geert Uytterhoeven <geert+renesas(a)glider.be> dt-bindings: leds: class-multicolor: Fix path to color definitions Neil Armstrong <neil.armstrong(a)linaro.org> dt-bindings: mmc: controller: clarify the address-cells description Mingwei Zheng <zmw12306(a)gmail.com> spi: zynq-qspi: Add check for clk_enable() Octavian Purdila <tavip(a)google.com> net_sched: sch_sfq: don't allow 1 packet limit Eric Dumazet <edumazet(a)google.com> net_sched: sch_sfq: handle bigger packets Eric Dumazet <edumazet(a)google.com> net_sched: sch_sfq: annotate data-races around q->perturb_period Barnabás Czémán <barnabas.czeman(a)mainlining.org> wifi: wcn36xx: fix channel survey memory allocation size Thadeu Lima de Souza Cascardo <cascardo(a)igalia.com> wifi: rtlwifi: usb: fix workqueue leak when probe fails Thadeu Lima de Souza Cascardo <cascardo(a)igalia.com> wifi: rtlwifi: fix init_sw_vars leak when probe fails Thadeu Lima de Souza Cascardo <cascardo(a)igalia.com> wifi: rtlwifi: wait for firmware loading before releasing memory Thadeu Lima de Souza Cascardo <cascardo(a)igalia.com> wifi: rtlwifi: rtl8192se: rise completion of firmware loading as last step Thadeu Lima de Souza Cascardo <cascardo(a)igalia.com> wifi: rtlwifi: do not complete firmware loading needlessly Balaji Pothunoori <quic_bpothuno(a)quicinc.com> wifi: ath11k: Fix unexpected return buffer manager error for WCN6750/WCN6855 Charles Han <hanchunchao(a)inspur.com> ipmi: ipmb: Add check devm_kasprintf() returned value Thomas Gleixner <tglx(a)linutronix.de> genirq: Make handle_enforce_irqctx() unconditionally available Hermes Wu <hermes.wu(a)ite.com.tw> drm/bridge: it6505: Change definition of AUX_FIFO_MAX_SIZE Neil Armstrong <neil.armstrong(a)linaro.org> OPP: fix dev_pm_opp_find_bw_*() when bandwidth table not initialized Neil Armstrong <neil.armstrong(a)linaro.org> OPP: add index check to assert to avoid buffer overflow in _read_freq() Viresh Kumar <viresh.kumar(a)linaro.org> OPP: Reuse dev_pm_opp_get_freq_indexed() Viresh Kumar <viresh.kumar(a)linaro.org> OPP: Add dev_pm_opp_find_freq_exact_indexed() Manivannan Sadhasivam <mani(a)kernel.org> OPP: Introduce dev_pm_opp_get_freq_indexed() API Manivannan Sadhasivam <mani(a)kernel.org> OPP: Introduce dev_pm_opp_find_freq_{ceil/floor}_indexed() APIs Viresh Kumar <viresh.kumar(a)linaro.org> OPP: Rearrange entries in pm_opp.h Andy Yan <andy.yan(a)rock-chips.com> drm/rockchip: vop2: Check linear format for Cluster windows on rk3566/8 Andy Yan <andy.yan(a)rock-chips.com> drm/rockchip: vop2: Fix the windows switch between different layers Andy Yan <andy.yan(a)rock-chips.com> drm/rockchip: vop2: set bg dly and prescan dly at vop2_post_config Andy Yan <andy.yan(a)rock-chips.com> drm/rockchip: vop2: Set YUV/RGB overlay mode Andy Yan <andy.yan(a)rock-chips.com> drm/rockchip: vop2: Fix the mixer alpha setup for layer 0 Andy Yan <andy.yan(a)rock-chips.com> drm/rockchip: vop2: Fix cluster windows alpha ctrl regsiters offset Ivan Stepchenko <sid(a)itb.spb.ru> drm/amdgpu: Fix potential NULL pointer dereference in atomctrl_get_smc_sclk_range_table Alan Stern <stern(a)rowland.harvard.edu> HID: core: Fix assumption that Resolution Multipliers must be in Logical Collections Sui Jingfeng <sui.jingfeng(a)linux.dev> drm/etnaviv: Fix page property being used for non writecombine buffers Dmitry Baryshkov <dmitry.baryshkov(a)linaro.org> drm/msm/dp: set safe_to_exit_level before printing it Peter Zijlstra <peterz(a)infradead.org> sched/fair: Fix value reported by hot tasks pulled in /proc/schedstat Chengming Zhou <zhouchengming(a)bytedance.com> sched/psi: Use task->psi_flags to clear in CPU migration David Howells <dhowells(a)redhat.com> afs: Fix the fallback handling for the YFS.RemoveFile2 RPC call Christophe Leroy <christophe.leroy(a)csgroup.eu> select: Fix unbalanced user_access_end() Randy Dunlap <rdunlap(a)infradead.org> partitions: ldm: remove the initial kernel-doc notation Michael Ellerman <mpe(a)ellerman.id.au> selftests/powerpc: Fix argument order to timer_sub() Keisuke Nishimura <keisuke.nishimura(a)inria.fr> nvme: Add error check for xa_store in nvme_get_effects_log Eugen Hristev <eugen.hristev(a)linaro.org> pstore/blk: trivial typo fixes Yu Kuai <yukuai3(a)huawei.com> nbd: don't allow reconnect after disconnect Yang Erkun <yangerkun(a)huawei.com> block: retry call probe after request_module in blk_request_module Jinliang Zheng <alexjlzheng(a)gmail.com> fs: fix proc_handler for sysctl_nr_open David Howells <dhowells(a)redhat.com> afs: Fix directory format encoding struct David Howells <dhowells(a)redhat.com> afs: Fix EEXIST error returned from afs_rmdir() to be ENOTEMPTY Sourabh Jain <sourabhjain(a)linux.ibm.com> powerpc/book3s64/hugetlb: Fix disabling hugetlb when fadump is active ------------- Diffstat: .../bindings/leds/leds-class-multicolor.yaml | 2 +- .../devicetree/bindings/mfd/rohm,bd71815-pmic.yaml | 20 +-- .../devicetree/bindings/mmc/mmc-controller.yaml | 2 +- .../bindings/regulator/mt6315-regulator.yaml | 6 - Documentation/kbuild/kconfig.rst | 9 ++ Makefile | 6 +- arch/alpha/include/uapi/asm/ptrace.h | 2 + arch/alpha/kernel/asm-offsets.c | 2 + arch/alpha/kernel/entry.S | 24 ++- arch/alpha/kernel/traps.c | 2 +- arch/alpha/mm/fault.c | 4 +- arch/arm/boot/dts/dra7-l4.dtsi | 2 + arch/arm/boot/dts/mt7623.dtsi | 2 +- arch/arm/mach-at91/pm.c | 31 ++-- arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi | 29 +--- arch/arm64/boot/dts/mediatek/mt8173-evb.dts | 25 +--- .../dts/mediatek/mt8183-kukui-jacuzzi-damu.dts | 4 + .../dts/mediatek/mt8183-kukui-jacuzzi-kenzo.dts | 15 ++ .../dts/mediatek/mt8183-kukui-jacuzzi-willow.dtsi | 15 ++ .../boot/dts/mediatek/mt8183-kukui-jacuzzi.dtsi | 2 - arch/arm64/boot/dts/mediatek/mt8192-asurada.dtsi | 3 - arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi | 2 - arch/arm64/boot/dts/mediatek/mt8195-demo.dts | 9 -- arch/arm64/boot/dts/mediatek/mt8195.dtsi | 2 +- arch/arm64/boot/dts/mediatek/mt8516.dtsi | 11 +- arch/arm64/boot/dts/mediatek/pumpkin-common.dtsi | 2 - arch/arm64/boot/dts/nvidia/tegra234.dtsi | 6 +- arch/arm64/boot/dts/qcom/msm8916.dtsi | 2 +- arch/arm64/boot/dts/qcom/msm8994.dtsi | 11 +- arch/arm64/boot/dts/qcom/msm8996-xiaomi-gemini.dts | 2 +- arch/arm64/boot/dts/qcom/msm8996.dtsi | 9 +- arch/arm64/boot/dts/qcom/pm6150.dtsi | 2 +- arch/arm64/boot/dts/qcom/pm6150l.dtsi | 35 +++++ arch/arm64/boot/dts/qcom/sc7180-idp.dts | 15 +- .../arm64/boot/dts/qcom/sc7180-trogdor-coachz.dtsi | 1 - .../boot/dts/qcom/sc7180-trogdor-homestar.dtsi | 1 - .../arm64/boot/dts/qcom/sc7180-trogdor-pompom.dtsi | 7 +- .../dts/qcom/sc7180-trogdor-quackingstick.dtsi | 12 +- .../boot/dts/qcom/sc7180-trogdor-wormdingler.dtsi | 12 +- arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi | 9 +- arch/arm64/boot/dts/qcom/sc7180.dtsi | 34 +---- arch/arm64/boot/dts/qcom/sc7280.dtsi | 2 +- arch/arm64/boot/dts/qcom/sc8280xp.dtsi | 6 +- arch/arm64/boot/dts/qcom/sdm845.dtsi | 20 +-- arch/arm64/boot/dts/qcom/sm6125.dtsi | 2 +- arch/arm64/boot/dts/qcom/sm6350.dtsi | 4 +- arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts | 2 +- .../boot/dts/qcom/sm8150-microsoft-surface-duo.dts | 4 +- arch/arm64/boot/dts/qcom/sm8250.dtsi | 30 ++-- arch/arm64/boot/dts/qcom/sm8350.dtsi | 4 +- arch/arm64/boot/dts/qcom/sm8450.dtsi | 4 +- arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi | 2 +- arch/arm64/boot/dts/ti/k3-am62-main.dtsi | 1 - arch/arm64/boot/dts/ti/k3-am62a-main.dtsi | 1 - arch/arm64/kernel/cacheinfo.c | 12 +- arch/arm64/kernel/vdso/vdso.lds.S | 1 + arch/arm64/kernel/vmlinux.lds.S | 1 + arch/arm64/mm/hugetlbpage.c | 12 ++ arch/hexagon/include/asm/cmpxchg.h | 2 +- arch/hexagon/kernel/traps.c | 4 +- arch/m68k/include/asm/vga.h | 8 +- arch/mips/kernel/ftrace.c | 2 +- arch/mips/loongson64/boardinfo.c | 2 - arch/mips/math-emu/cp1emu.c | 2 +- arch/powerpc/include/asm/hugetlb.h | 9 ++ arch/powerpc/kvm/e500_mmu_host.c | 21 +-- arch/powerpc/platforms/pseries/eeh_pseries.c | 6 +- arch/s390/Makefile | 2 +- arch/s390/include/asm/futex.h | 2 +- arch/s390/kvm/vsie.c | 25 +++- arch/s390/purgatory/Makefile | 2 +- arch/x86/boot/compressed/Makefile | 1 + arch/x86/events/intel/core.c | 5 +- arch/x86/include/asm/kexec.h | 18 ++- arch/x86/include/asm/mmu.h | 2 + arch/x86/include/asm/mmu_context.h | 1 + arch/x86/include/asm/msr-index.h | 3 +- arch/x86/include/asm/tlbflush.h | 1 + arch/x86/kernel/amd_nb.c | 4 + arch/x86/kernel/i8253.c | 11 +- arch/x86/kernel/machine_kexec_64.c | 45 +++--- arch/x86/kernel/static_call.c | 1 - arch/x86/kvm/hyperv.c | 6 +- arch/x86/kvm/mmu/mmu.c | 2 +- arch/x86/kvm/svm/nested.c | 10 +- arch/x86/mm/tlb.c | 35 ++++- arch/x86/xen/mmu_pv.c | 79 ++++++++-- arch/x86/xen/xen-head.S | 5 +- block/blk-cgroup.c | 1 + block/fops.c | 5 +- block/genhd.c | 22 ++- block/partitions/ldm.h | 2 +- block/partitions/mac.c | 18 ++- drivers/acpi/apei/ghes.c | 10 +- drivers/acpi/fan_core.c | 10 +- drivers/acpi/prmt.c | 4 +- drivers/acpi/property.c | 10 +- drivers/ata/libata-sff.c | 18 ++- drivers/base/regmap/regmap-irq.c | 2 + drivers/block/nbd.c | 1 + drivers/char/ipmi/ipmb_dev_int.c | 3 + drivers/clk/analogbits/wrpll-cln28hpc.c | 2 +- drivers/clk/imx/clk-imx8mp.c | 5 +- drivers/clk/qcom/clk-alpha-pll.c | 2 + drivers/clk/qcom/clk-rpmh.c | 2 +- drivers/clk/qcom/dispcc-sm6350.c | 7 +- drivers/clk/qcom/gcc-mdm9607.c | 2 +- drivers/clk/qcom/gcc-sdm845.c | 32 ++-- drivers/clk/qcom/gcc-sm6350.c | 22 ++- drivers/clk/sunxi-ng/ccu-sun50i-a100.c | 6 +- drivers/clocksource/i8253.c | 13 +- drivers/cpufreq/acpi-cpufreq.c | 36 +++-- drivers/cpufreq/s3c64xx-cpufreq.c | 11 +- drivers/crypto/hisilicon/sec2/sec.h | 3 +- drivers/crypto/hisilicon/sec2/sec_crypto.c | 164 ++++++++++----------- drivers/crypto/hisilicon/sec2/sec_crypto.h | 11 -- drivers/crypto/ixp4xx_crypto.c | 3 + drivers/crypto/qce/aead.c | 2 +- drivers/crypto/qce/core.c | 13 +- drivers/crypto/qce/sha.c | 2 +- drivers/crypto/qce/skcipher.c | 2 +- drivers/dma/ti/edma.c | 3 +- drivers/firmware/Kconfig | 2 +- drivers/firmware/efi/efi.c | 6 +- drivers/firmware/efi/libstub/Makefile | 2 +- drivers/firmware/efi/libstub/randomalloc.c | 3 + drivers/firmware/efi/libstub/relocate.c | 3 + drivers/firmware/efi/sysfb_efi.c | 2 +- drivers/gpio/gpio-bcm-kona.c | 71 +++++++-- drivers/gpio/gpio-mxc.c | 3 +- drivers/gpio/gpio-pca953x.c | 19 --- drivers/gpio/gpio-stmpe.c | 15 +- drivers/gpio/gpio-xilinx.c | 56 +++---- drivers/gpio/gpiolib-acpi.c | 14 ++ .../amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 6 +- .../amd/display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c | 8 + .../amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c | 8 + drivers/gpu/drm/amd/display/dc/core/dc_link.c | 2 +- .../gpu/drm/amd/display/dc/dce/dmub_hw_lock_mgr.c | 3 +- .../gpu/drm/amd/display/dc/dcn30/dcn30_resource.c | 3 + .../gpu/drm/amd/display/dc/dcn31/dcn31_resource.c | 5 + .../drm/amd/display/dc/dcn314/dcn314_resource.c | 5 + .../drm/amd/display/dc/dcn315/dcn315_resource.c | 2 + .../drm/amd/display/dc/dcn316/dcn316_resource.c | 2 + .../gpu/drm/amd/display/dc/dcn32/dcn32_resource.c | 5 + .../drm/amd/display/dc/dcn321/dcn321_resource.c | 2 + .../gpu/drm/amd/pm/powerplay/hwmgr/ppatomctrl.c | 2 + drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 3 +- drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c | 1 - .../drm/arm/display/komeda/komeda_wb_connector.c | 4 + drivers/gpu/drm/bridge/ite-it6505.c | 65 ++++---- drivers/gpu/drm/display/drm_dp_cec.c | 14 +- drivers/gpu/drm/drm_fb_helper.c | 14 +- drivers/gpu/drm/etnaviv/etnaviv_gem.c | 16 +- drivers/gpu/drm/i915/display/skl_universal_plane.c | 4 - drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c | 20 ++- drivers/gpu/drm/i915/selftests/i915_gem_gtt.c | 4 +- drivers/gpu/drm/msm/dp/dp_audio.c | 2 +- drivers/gpu/drm/rockchip/cdn-dp-core.c | 9 +- drivers/gpu/drm/rockchip/rockchip_drm_drv.h | 1 + drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 120 +++++++++++---- drivers/gpu/drm/rockchip/rockchip_drm_vop2.h | 1 + drivers/gpu/drm/tidss/tidss_dispc.c | 22 +-- drivers/gpu/drm/v3d/v3d_perfmon.c | 5 + drivers/gpu/drm/virtio/virtgpu_drv.h | 7 + drivers/gpu/drm/virtio/virtgpu_plane.c | 58 +++++--- drivers/hid/hid-core.c | 2 + drivers/hid/hid-multitouch.c | 7 +- drivers/hid/hid-sensor-hub.c | 21 ++- drivers/hid/hid-thrustmaster.c | 8 + drivers/hid/wacom_wac.c | 5 + drivers/i2c/i2c-core-acpi.c | 22 +++ drivers/i3c/master.c | 2 +- drivers/i3c/master/i3c-master-cdns.c | 1 + drivers/iio/light/as73211.c | 24 ++- drivers/infiniband/hw/cxgb4/device.c | 6 +- drivers/infiniband/hw/efa/efa_main.c | 9 +- drivers/infiniband/hw/mlx4/main.c | 6 +- drivers/infiniband/hw/mlx5/odp.c | 32 ++-- drivers/infiniband/sw/rxe/rxe_pool.c | 11 +- drivers/infiniband/ulp/srp/ib_srp.c | 1 - drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 17 ++- drivers/irqchip/irq-apple-aic.c | 3 +- drivers/leds/leds-lp8860.c | 2 +- drivers/leds/leds-netxbig.c | 1 + drivers/mailbox/tegra-hsp.c | 6 +- drivers/md/dm-crypt.c | 27 ++-- drivers/media/dvb-frontends/cxd2841er.c | 8 +- drivers/media/i2c/ccs/ccs-core.c | 6 +- drivers/media/i2c/ccs/ccs-data.c | 14 +- drivers/media/i2c/imx412.c | 42 +++--- drivers/media/i2c/ov5640.c | 1 + drivers/media/i2c/ov9282.c | 2 +- drivers/media/platform/marvell/mcam-core.c | 7 +- drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c | 7 +- .../media/platform/samsung/exynos4-is/mipi-csis.c | 10 +- .../media/platform/samsung/s3c-camif/camif-core.c | 13 +- drivers/media/rc/iguanair.c | 4 +- drivers/media/test-drivers/vidtv/vidtv_bridge.c | 8 +- drivers/media/usb/dvb-usb-v2/lmedm04.c | 12 +- drivers/media/usb/uvc/uvc_ctrl.c | 8 +- drivers/media/usb/uvc/uvc_driver.c | 70 ++++----- drivers/media/usb/uvc/uvc_queue.c | 3 +- drivers/media/usb/uvc/uvc_status.c | 1 + drivers/media/v4l2-core/v4l2-mc.c | 2 +- drivers/memory/tegra/tegra20-emc.c | 8 +- drivers/mfd/lpc_ich.c | 3 +- drivers/mfd/syscon.c | 81 +++++++--- drivers/misc/cardreader/rtsx_usb.c | 15 ++ drivers/misc/fastrpc.c | 8 +- drivers/mmc/core/sdio.c | 2 + drivers/mmc/host/mtk-sd.c | 31 ++-- drivers/mmc/host/sdhci-msm.c | 53 ++++++- drivers/mtd/hyperbus/hbmc-am654.c | 25 ++-- drivers/mtd/nand/onenand/onenand_base.c | 1 + drivers/net/can/c_can/c_can_platform.c | 5 +- drivers/net/can/ctucanfd/ctucanfd_base.c | 10 +- drivers/net/ethernet/aquantia/atlantic/aq_nic.c | 4 +- drivers/net/ethernet/broadcom/bgmac.h | 3 +- drivers/net/ethernet/broadcom/tg3.c | 58 ++++++++ drivers/net/ethernet/davicom/dm9000.c | 3 +- drivers/net/ethernet/freescale/fec_main.c | 31 +++- drivers/net/ethernet/hisilicon/hns3/hnae3.c | 15 ++ drivers/net/ethernet/hisilicon/hns3/hnae3.h | 2 + drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 2 + .../ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 2 + .../ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 2 + drivers/net/ethernet/intel/iavf/iavf_main.c | 19 ++- .../net/ethernet/mellanox/mlx5/core/lib/clock.c | 24 +-- drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c | 2 - .../net/ethernet/mellanox/mlxsw/spectrum_ethtool.c | 4 +- drivers/net/ethernet/renesas/sh_eth.c | 4 + drivers/net/ethernet/ti/am65-cpsw-nuss.c | 2 +- drivers/net/netdevsim/ipsec.c | 12 +- drivers/net/netdevsim/netdevsim.h | 1 + drivers/net/netdevsim/udp_tunnels.c | 23 +-- drivers/net/phy/nxp-c45-tja11xx.c | 2 + drivers/net/team/team.c | 11 +- drivers/net/tun.c | 2 +- drivers/net/usb/rtl8150.c | 22 +++ drivers/net/vxlan/vxlan_core.c | 7 +- drivers/net/vxlan/vxlan_vnifilter.c | 5 + drivers/net/wireless/ath/ath11k/dp_rx.c | 1 + drivers/net/wireless/ath/ath11k/hal_rx.c | 3 +- drivers/net/wireless/ath/wcn36xx/main.c | 5 +- .../wireless/broadcom/brcm80211/brcmfmac/core.c | 5 + .../net/wireless/broadcom/brcm80211/brcmfmac/of.c | 8 +- .../broadcom/brcm80211/brcmsmac/phy/phy_n.c | 3 + drivers/net/wireless/intel/iwlwifi/fw/acpi.c | 13 +- drivers/net/wireless/mediatek/mt76/mt7915/mmio.c | 2 +- drivers/net/wireless/mediatek/mt76/mt7921/main.c | 8 +- drivers/net/wireless/mediatek/mt76/usb.c | 4 +- drivers/net/wireless/realtek/rtlwifi/base.c | 29 +--- drivers/net/wireless/realtek/rtlwifi/base.h | 2 - drivers/net/wireless/realtek/rtlwifi/pci.c | 66 ++------- .../net/wireless/realtek/rtlwifi/rtl8192se/sw.c | 7 +- .../net/wireless/realtek/rtlwifi/rtl8821ae/fw.h | 4 +- drivers/net/wireless/realtek/rtlwifi/usb.c | 12 +- drivers/net/wireless/realtek/rtlwifi/wifi.h | 23 --- drivers/net/wireless/ti/wlcore/main.c | 10 +- drivers/net/wwan/iosm/iosm_ipc_pcie.c | 56 ++++++- drivers/nvme/host/core.c | 16 +- drivers/nvme/host/ioctl.c | 8 +- drivers/nvme/host/pci.c | 4 +- drivers/nvmem/core.c | 2 + drivers/nvmem/qcom-spmi-sdam.c | 1 + drivers/of/base.c | 8 +- drivers/of/of_reserved_mem.c | 7 +- drivers/opp/core.c | 156 ++++++++++++++++---- drivers/opp/of.c | 4 +- drivers/parport/parport_pc.c | 5 + drivers/pci/controller/pcie-rcar-ep.c | 2 +- drivers/pci/endpoint/functions/pci-epf-test.c | 51 +++---- drivers/pci/endpoint/pci-epc-core.c | 2 +- drivers/pci/endpoint/pci-epf-core.c | 1 + drivers/pci/quirks.c | 12 ++ drivers/pci/switch/switchtec.c | 26 ++++ drivers/pinctrl/pinctrl-cy8c95x0.c | 2 +- drivers/pinctrl/samsung/pinctrl-samsung.c | 2 +- drivers/pinctrl/stm32/pinctrl-stm32.c | 105 +++++++++---- drivers/platform/x86/acer-wmi.c | 4 + drivers/platform/x86/intel/int3472/discrete.c | 3 + drivers/platform/x86/intel/int3472/tps68470.c | 3 + drivers/pps/clients/pps-gpio.c | 4 +- drivers/pps/clients/pps-ktimer.c | 4 +- drivers/pps/clients/pps-ldisc.c | 6 +- drivers/pps/clients/pps_parport.c | 4 +- drivers/pps/kapi.c | 10 +- drivers/pps/kc.c | 10 +- drivers/pps/pps.c | 127 ++++++++-------- drivers/ptp/ptp_chardev.c | 4 + drivers/ptp/ptp_clock.c | 8 + drivers/ptp/ptp_ocp.c | 2 +- drivers/pwm/pwm-stm32-lp.c | 8 +- drivers/pwm/pwm-stm32.c | 7 +- drivers/regulator/core.c | 2 +- drivers/regulator/of_regulator.c | 14 +- drivers/remoteproc/remoteproc_core.c | 14 +- drivers/rtc/rtc-pcf85063.c | 11 +- drivers/rtc/rtc-zynqmp.c | 4 +- drivers/scsi/mpt3sas/mpt3sas_base.c | 3 +- drivers/scsi/qla2xxx/qla_def.h | 2 + drivers/scsi/qla2xxx/qla_dfs.c | 122 ++++++++++++--- drivers/scsi/qla2xxx/qla_gbl.h | 3 + drivers/scsi/qla2xxx/qla_init.c | 28 ++-- drivers/scsi/storvsc_drv.c | 1 + drivers/soc/atmel/soc.c | 2 +- drivers/soc/qcom/smem_state.c | 3 +- drivers/soc/qcom/socinfo.c | 2 +- drivers/spi/spi-zynq-qspi.c | 13 +- drivers/staging/media/imx/imx-media-of.c | 8 +- drivers/staging/media/max96712/max96712.c | 4 +- drivers/tty/serial/8250/8250.h | 2 + drivers/tty/serial/8250/8250_dma.c | 16 ++ drivers/tty/serial/8250/8250_pci.c | 10 ++ drivers/tty/serial/8250/8250_port.c | 41 +++++- drivers/tty/serial/sh-sci.c | 25 +++- drivers/tty/serial/xilinx_uartps.c | 10 +- drivers/ufs/core/ufs_bsg.c | 2 + drivers/usb/chipidea/ci_hdrc_imx.c | 31 ++-- drivers/usb/class/cdc-acm.c | 28 +++- drivers/usb/core/hub.c | 14 +- drivers/usb/core/quirks.c | 6 + drivers/usb/dwc2/gadget.c | 1 + drivers/usb/dwc3/core.c | 30 ++-- drivers/usb/dwc3/dwc3-am62.c | 1 + drivers/usb/dwc3/gadget.c | 34 +++++ drivers/usb/gadget/function/f_midi.c | 8 +- drivers/usb/gadget/function/f_tcm.c | 66 ++++----- drivers/usb/gadget/udc/renesas_usb3.c | 2 +- drivers/usb/host/pci-quirks.c | 9 ++ drivers/usb/host/xhci-ring.c | 3 +- drivers/usb/roles/class.c | 5 +- drivers/usb/serial/option.c | 49 +++--- drivers/usb/typec/tcpm/tcpci.c | 13 +- drivers/usb/typec/tcpm/tcpm.c | 10 +- drivers/vfio/iova_bitmap.c | 2 +- drivers/vfio/pci/vfio_pci_rdwr.c | 1 + drivers/vfio/platform/vfio_platform_common.c | 10 ++ drivers/video/fbdev/omap/lcd_dma.c | 4 +- drivers/video/fbdev/omap2/omapfb/dss/dss-of.c | 1 + drivers/xen/swiotlb-xen.c | 20 ++- fs/afs/dir.c | 7 +- fs/afs/xdr_fs.h | 2 +- fs/afs/yfsclient.c | 5 +- fs/binfmt_flat.c | 2 +- fs/btrfs/file.c | 6 +- fs/btrfs/inode.c | 4 +- fs/btrfs/relocation.c | 14 +- fs/btrfs/super.c | 2 +- fs/btrfs/transaction.c | 4 +- fs/cachefiles/interface.c | 14 +- fs/cachefiles/ondemand.c | 30 +++- fs/exec.c | 29 +++- fs/f2fs/dir.c | 53 +++++-- fs/f2fs/f2fs.h | 6 +- fs/f2fs/file.c | 13 ++ fs/f2fs/inline.c | 5 +- fs/file_table.c | 2 +- fs/nfs/flexfilelayout/flexfilelayout.c | 27 +++- fs/nfs/nfs42proc.c | 2 +- fs/nfs/nfs42xdr.c | 2 + fs/nfsd/nfs2acl.c | 2 + fs/nfsd/nfs3acl.c | 2 + fs/nfsd/nfs4callback.c | 8 +- fs/nilfs2/inode.c | 10 +- fs/nilfs2/mdt.c | 6 +- fs/nilfs2/page.c | 55 ++++--- fs/nilfs2/page.h | 4 +- fs/nilfs2/segment.c | 4 +- fs/ocfs2/dir.c | 25 +++- fs/ocfs2/quota_global.c | 5 + fs/ocfs2/super.c | 2 +- fs/ocfs2/symlink.c | 5 +- fs/orangefs/orangefs-debugfs.c | 4 +- fs/proc/array.c | 2 +- fs/pstore/blk.c | 4 +- fs/select.c | 4 +- fs/smb/client/cifsglob.h | 14 +- fs/smb/client/smb1ops.c | 2 +- fs/smb/client/smb2ops.c | 21 +-- fs/smb/client/smb2pdu.c | 2 +- fs/smb/client/smb2proto.h | 2 +- fs/smb/server/transport_ipc.c | 9 ++ fs/ubifs/debug.c | 22 +-- fs/xfs/xfs_inode.c | 7 +- fs/xfs/xfs_qm_bhv.c | 41 ++++-- fs/xfs/xfs_super.c | 11 +- include/linux/binfmts.h | 4 +- include/linux/cgroup-defs.h | 6 +- include/linux/efi.h | 1 + include/linux/i8253.h | 1 + include/linux/ieee80211.h | 11 +- include/linux/iommu.h | 2 +- include/linux/kallsyms.h | 2 +- include/linux/kvm_host.h | 9 ++ include/linux/mfd/syscon.h | 33 +++-- include/linux/mlx5/driver.h | 1 - include/linux/netdevice.h | 8 +- include/linux/pci_ids.h | 4 + include/linux/pm_opp.h | 72 ++++++--- include/linux/pps_kernel.h | 3 +- include/linux/sched.h | 4 +- include/linux/sched/task.h | 1 + include/linux/usb/tcpm.h | 3 +- include/net/ax25.h | 10 +- include/net/inetpeer.h | 12 +- include/net/l3mdev.h | 2 + include/net/net_namespace.h | 15 +- include/net/route.h | 9 +- include/net/sch_generic.h | 2 +- include/rv/da_monitor.h | 4 + include/uapi/linux/input-event-codes.h | 1 + include/ufs/ufs.h | 4 +- io_uring/io_uring.c | 5 +- io_uring/net.c | 5 + io_uring/poll.c | 4 + io_uring/rw.c | 10 ++ kernel/cgroup/cgroup.c | 20 ++- kernel/cgroup/rstat.c | 1 - kernel/debug/kdb/kdb_io.c | 2 + kernel/irq/internals.h | 9 +- kernel/padata.c | 45 ++++-- kernel/power/hibernate.c | 7 +- kernel/printk/printk.c | 2 +- kernel/sched/core.c | 8 +- kernel/sched/cpufreq_schedutil.c | 4 +- kernel/sched/fair.c | 17 ++- kernel/sched/stats.h | 22 +-- kernel/time/clocksource.c | 9 +- kernel/trace/bpf_trace.c | 2 +- lib/Kconfig.debug | 8 +- lib/maple_tree.c | 22 +-- mm/gup.c | 14 +- mm/kfence/core.c | 2 + mm/kmemleak.c | 2 +- net/ax25/af_ax25.c | 23 ++- net/ax25/ax25_dev.c | 4 +- net/ax25/ax25_ip.c | 3 +- net/ax25/ax25_out.c | 22 ++- net/ax25/ax25_route.c | 2 + net/batman-adv/bat_v.c | 2 - net/batman-adv/bat_v_elp.c | 122 ++++++++++----- net/batman-adv/bat_v_elp.h | 2 - net/batman-adv/types.h | 3 - net/bluetooth/l2cap_sock.c | 7 +- net/bluetooth/mgmt.c | 12 +- net/can/j1939/socket.c | 4 +- net/can/j1939/transport.c | 5 +- net/core/filter.c | 2 +- net/core/flow_dissector.c | 21 +-- net/core/neighbour.c | 11 +- net/core/sysctl_net_core.c | 5 +- net/dsa/slave.c | 7 +- net/ethtool/netlink.c | 2 +- net/hsr/hsr_forward.c | 7 +- net/ipv4/arp.c | 4 +- net/ipv4/devinet.c | 3 +- net/ipv4/icmp.c | 40 ++--- net/ipv4/inetpeer.c | 31 +--- net/ipv4/ip_fragment.c | 15 +- net/ipv4/ipmr_base.c | 3 - net/ipv4/route.c | 56 +++++-- net/ipv4/tcp_cubic.c | 8 +- net/ipv4/udp.c | 4 +- net/ipv6/icmp.c | 6 +- net/ipv6/ip6_output.c | 6 +- net/ipv6/mcast.c | 14 +- net/ipv6/ndisc.c | 36 +++-- net/ipv6/route.c | 7 +- net/ipv6/udp.c | 4 +- net/mac80211/debugfs_netdev.c | 2 +- net/mptcp/options.c | 13 +- net/mptcp/pm_netlink.c | 3 +- net/mptcp/protocol.c | 5 +- net/mptcp/protocol.h | 30 ++-- net/ncsi/internal.h | 2 + net/ncsi/ncsi-cmd.c | 3 +- net/ncsi/ncsi-manage.c | 38 +++-- net/ncsi/ncsi-pkt.h | 10 ++ net/ncsi/ncsi-rsp.c | 58 ++++++-- net/netfilter/nf_tables_api.c | 8 +- net/netfilter/nft_flow_offload.c | 16 +- net/nfc/nci/hci.c | 2 + net/openvswitch/datapath.c | 12 +- net/rose/af_rose.c | 40 +++-- net/rose/rose_timer.c | 15 ++ net/sched/sch_api.c | 4 + net/sched/sch_netem.c | 2 +- net/sched/sch_sfq.c | 58 ++++---- net/smc/af_smc.c | 2 +- net/smc/smc_rx.c | 37 +++-- net/smc/smc_rx.h | 8 +- net/tipc/crypto.c | 4 +- net/wireless/scan.c | 35 +++++ net/xfrm/xfrm_replay.c | 10 +- samples/landlock/sandboxer.c | 7 + scripts/Makefile.extrawarn | 5 +- scripts/Makefile.lib | 4 +- scripts/genksyms/genksyms.c | 11 +- scripts/genksyms/genksyms.h | 2 +- scripts/genksyms/parse.y | 18 ++- scripts/kconfig/conf.c | 6 + scripts/kconfig/confdata.c | 102 ++++++------- scripts/kconfig/lkc_proto.h | 2 + scripts/kconfig/symbol.c | 10 ++ security/landlock/fs.c | 11 +- security/safesetid/securityfs.c | 3 + security/tomoyo/common.c | 2 +- sound/pci/hda/hda_auto_parser.c | 8 +- sound/pci/hda/hda_auto_parser.h | 1 + sound/pci/hda/patch_realtek.c | 3 + sound/soc/amd/Kconfig | 2 +- sound/soc/amd/yc/acp6x-mach.c | 28 ++++ sound/soc/intel/avs/apl.c | 2 +- sound/soc/intel/boards/bytcr_rt5640.c | 17 ++- sound/soc/rockchip/rockchip_i2s_tdm.c | 31 +++- sound/soc/sh/rz-ssi.c | 3 +- sound/soc/soc-pcm.c | 31 +++- sound/soc/sunxi/sun4i-spdif.c | 7 + sound/usb/quirks.c | 2 + tools/bootconfig/main.c | 4 +- tools/lib/bpf/linker.c | 22 +-- tools/lib/bpf/usdt.c | 2 +- .../cpupower/utils/idle_monitor/mperf_monitor.c | 15 +- tools/testing/ktest/ktest.pl | 7 +- tools/testing/selftests/bpf/test_tc_tunnel.sh | 1 + .../drivers/net/netdevsim/udp_tunnel_nic.sh | 16 +- tools/testing/selftests/gpio/gpio-sim.sh | 31 +++- tools/testing/selftests/kselftest_harness.h | 24 +-- tools/testing/selftests/landlock/fs_test.c | 3 +- tools/testing/selftests/net/ipsec.c | 3 +- tools/testing/selftests/net/mptcp/mptcp_connect.c | 2 +- tools/testing/selftests/net/pmtu.sh | 112 +++++++++++--- tools/testing/selftests/net/rtnetlink.sh | 4 +- tools/testing/selftests/net/udpgso.c | 26 ++++ .../selftests/powerpc/benchmarks/gettimeofday.c | 2 +- .../testing/selftests/timers/clocksource-switch.c | 6 +- tools/tracing/rtla/src/osnoise.c | 2 +- tools/tracing/rtla/src/timerlat_hist.c | 19 ++- tools/tracing/rtla/src/timerlat_top.c | 20 ++- tools/tracing/rtla/src/trace.c | 8 + tools/tracing/rtla/src/trace.h | 1 + 543 files changed, 4585 insertions(+), 2316 deletions(-)

3 months, 2 weeks

9
15
0 0

[REGRESSION][BISECTED] Commit 60e3318e3e900 in stable/linux-6.1.y breaks cifs client failover to another server in DFS namespace

by Andrew Paniakin

Commit 60e3318e3e900 ("cifs: use fs_context for automounts") was released in v6.1.54 and broke the failover when one of the servers inside DFS becomes unavailable. We reproduced the problem on the EC2 instances of different types. Reverting aforementioned commint on top of the latest stable verison v6.1.94 helps to resolve the problem. Earliest working version is v6.2-rc1. There were two big merges of CIFS fixes: [1] and [2]. We would like to ask for the help to investigate this problem and if some of those patches need to be backported. Also, is it safe to just revert problematic commit until proper fixes/backports will be available? We will help to do testing and confirm if fix works, but let me also list the steps we used to reproduce the problem if it will help to identify the problem: 1. Create Active Directory domain eg. 'corp.fsxtest.local' in AWS Directory Service with: - three AWS FSX file systems filesystem1..filesystem3 - three Windows servers; They have DFS installed as per https://learn.microsoft.com/en-us/windows-server/storage/dfs-namespaces/dfs…: - dfs-srv1: EC2AMAZ-2EGTM59 - dfs-srv2: EC2AMAZ-1N36PRD - dfs-srv3: EC2AMAZ-0PAUH2U 2. Create DFS namespace eg. 'dfs-namespace' in Windows server 2008 mode and three folders targets in it: - referral-a mapped to filesystem1.corp.local - referral-b mapped to filesystem2.corp.local - referral-c mapped to filesystem3.corp.local - local folders dfs-srv1..dfs-srv3 in C:\DFSRoots\dfs-namespace of every Windows server. This helps to quickly define underlying server when DFS is mounted. 3. Enabled cifs debug logs: ``` echo 'module cifs +p' > /sys/kernel/debug/dynamic_debug/control echo 'file fs/cifs/* +p' > /sys/kernel/debug/dynamic_debug/control echo 7 > /proc/fs/cifs/cifsFYI ``` 4. Mount DFS namespace on Amazon Linux 2023 instance running any vanilla kernel v6.1.54+: ``` dmesg -c &>/dev/null cd /mnt mount -t cifs -o cred=/mnt/creds,echo_interval=5 \ //corp.fsxtest.local/dfs-namespace \ ./dfs-namespace ``` 5. List DFS root, it's also required to avoid recursive mounts that happen during regular 'ls' run: ``` sh -c 'ls dfs-namespace' dfs-srv2 referral-a referral-b ``` The DFS server is EC2AMAZ-1N36PRD, it's also listed in mount: ``` [root@ip-172-31-2-82 mnt]# mount | grep dfs //corp.fsxtest.local/dfs-namespace on /mnt/dfs-namespace type cifs (rw,relatime,vers=3.1.1,cache=strict,username=Admin,domain=corp.fsxtest.local,uid=0,noforceuid,gid=0,noforcegid,addr=172.31.11.26,file_mode=0755,dir_mode=0755,soft,nounix,mapposix,rsize=4194304,wsize=4194304,bsize=1048576,echo_interval=5,actimeo=1,closetimeo=1) //EC2AMAZ-1N36PRD.corp.fsxtest.local/dfs-namespace/referral-a on /mnt/dfs-namespace/referral-a type cifs (rw,relatime,vers=3.1.1,cache=strict,username=Admin,domain=corp.fsxtest.local,uid=0,noforceuid,gid=0,noforcegid,addr=172.31.12.80,file_mode=0755,dir_mode=0755,soft,nounix,mapposix,rsize=4194304,wsize=4194304,bsize=1048576,echo_interval=5,actimeo=1,closetimeo=1) ``` List files in first folder: ``` sh -c 'ls dfs-namespace/referral-a' filea.txt.txt ``` 6. Shutdown DFS server-2. List DFS root again, server changed from dfs-srv2 to dfs-srv1 EC2AMAZ-2EGTM59: ``` sh -c 'ls dfs-namespace' dfs-srv1 referral-a referral-b ``` 7. Try to list files in another folder, this causes ls to fail with error: ``` sh -c 'ls dfs-namespace/referral-b' ls: cannot access 'dfs-namespace/referral-b': No route to host``` Sometimes it's also 'Operation now in progress' error. mount shows the same output: ``` //corp.fsxtest.local/dfs-namespace on /mnt/dfs-namespace type cifs (rw,relatime,vers=3.1.1,cache=strict,username=Admin,domain=corp.fsxtest.local,uid=0,noforceuid,gid=0,noforcegid,addr=172.31.11.26,file_mode=0755,dir_mode=0755,soft,nounix,mapposix,rsize=4194304,wsize=4194304,bsize=1048576,echo_interval=5,actimeo=1,closetimeo=1) //EC2AMAZ-1N36PRD.corp.fsxtest.local/dfs-namespace/referral-a on /mnt/dfs-namespace/referral-a type cifs (rw,relatime,vers=3.1.1,cache=strict,username=Admin,domain=corp.fsxtest.local,uid=0,noforceuid,gid=0,noforcegid,addr=172.31.12.80,file_mode=0755,dir_mode=0755,soft,nounix,mapposix,rsize=4194304,wsize=4194304,bsize=1048576,echo_interval=5,actimeo=1,closetimeo=1) ``` I also attached kernel debug logs from this test. [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… [2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… Reported-by: Andrei Paniakin <apanyaki(a)amazon.com> Bisected-by: Simba Bonga <simbarb(a)amazon.com> --- #regzbot introduced: v6.1.54..v6.2-rc1

3 months, 2 weeks

3
12
0 0

[PATCH RESEND] drm/tegra: fix a possible null pointer dereference

by Qiu-ji Chen

In tegra_crtc_reset(), new memory is allocated with kzalloc(), but no check is performed. Before calling __drm_atomic_helper_crtc_reset, state should be checked to prevent possible null pointer dereference. Fixes: b7e0b04ae450 ("drm/tegra: Convert to using __drm_atomic_helper_crtc_reset() for reset.") Cc: stable(a)vger.kernel.org Signed-off-by: Qiu-ji Chen <chenqiuji666(a)gmail.com> --- drivers/gpu/drm/tegra/dc.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c index be61c9d1a4f0..1ed30853bd9e 100644 --- a/drivers/gpu/drm/tegra/dc.c +++ b/drivers/gpu/drm/tegra/dc.c @@ -1388,7 +1388,10 @@ static void tegra_crtc_reset(struct drm_crtc *crtc) if (crtc->state) tegra_crtc_atomic_destroy_state(crtc, crtc->state); - __drm_atomic_helper_crtc_reset(crtc, &state->base); + if (state) + __drm_atomic_helper_crtc_reset(crtc, &state->base); + else + __drm_atomic_helper_crtc_reset(crtc, NULL); } static struct drm_crtc_state * -- 2.34.1

3 months, 2 weeks

2
1
0 0

FAILED: patch "[PATCH] KVM: x86: Load DR6 with guest value only before entering" 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 c2fee09fc167c74a64adb08656cb993ea475197e # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025021815-protract-greasily-cdea@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From c2fee09fc167c74a64adb08656cb993ea475197e Mon Sep 17 00:00:00 2001 From: Sean Christopherson <seanjc(a)google.com> Date: Fri, 24 Jan 2025 17:18:33 -0800 Subject: [PATCH] KVM: x86: Load DR6 with guest value only before entering .vcpu_run() loop Move the conditional loading of hardware DR6 with the guest's DR6 value out of the core .vcpu_run() loop to fix a bug where KVM can load hardware with a stale vcpu->arch.dr6. When the guest accesses a DR and host userspace isn't debugging the guest, KVM disables DR interception and loads the guest's values into hardware on VM-Enter and saves them on VM-Exit. This allows the guest to access DRs at will, e.g. so that a sequence of DR accesses to configure a breakpoint only generates one VM-Exit. For DR0-DR3, the logic/behavior is identical between VMX and SVM, and also identical between KVM_DEBUGREG_BP_ENABLED (userspace debugging the guest) and KVM_DEBUGREG_WONT_EXIT (guest using DRs), and so KVM handles loading DR0-DR3 in common code, _outside_ of the core kvm_x86_ops.vcpu_run() loop. But for DR6, the guest's value doesn't need to be loaded into hardware for KVM_DEBUGREG_BP_ENABLED, and SVM provides a dedicated VMCB field whereas VMX requires software to manually load the guest value, and so loading the guest's value into DR6 is handled by {svm,vmx}_vcpu_run(), i.e. is done _inside_ the core run loop. Unfortunately, saving the guest values on VM-Exit is initiated by common x86, again outside of the core run loop. If the guest modifies DR6 (in hardware, when DR interception is disabled), and then the next VM-Exit is a fastpath VM-Exit, KVM will reload hardware DR6 with vcpu->arch.dr6 and clobber the guest's actual value. The bug shows up primarily with nested VMX because KVM handles the VMX preemption timer in the fastpath, and the window between hardware DR6 being modified (in guest context) and DR6 being read by guest software is orders of magnitude larger in a nested setup. E.g. in non-nested, the VMX preemption timer would need to fire precisely between #DB injection and the #DB handler's read of DR6, whereas with a KVM-on-KVM setup, the window where hardware DR6 is "dirty" extends all the way from L1 writing DR6 to VMRESUME (in L1). L1's view: ========== <L1 disables DR interception> CPU 0/KVM-7289 [023] d.... 2925.640961: kvm_entry: vcpu 0 A: L1 Writes DR6 CPU 0/KVM-7289 [023] d.... 2925.640963: <hack>: Set DRs, DR6 = 0xffff0ff1 B: CPU 0/KVM-7289 [023] d.... 2925.640967: kvm_exit: vcpu 0 reason EXTERNAL_INTERRUPT intr_info 0x800000ec D: L1 reads DR6, arch.dr6 = 0 CPU 0/KVM-7289 [023] d.... 2925.640969: <hack>: Sync DRs, DR6 = 0xffff0ff0 CPU 0/KVM-7289 [023] d.... 2925.640976: kvm_entry: vcpu 0 L2 reads DR6, L1 disables DR interception CPU 0/KVM-7289 [023] d.... 2925.640980: kvm_exit: vcpu 0 reason DR_ACCESS info1 0x0000000000000216 CPU 0/KVM-7289 [023] d.... 2925.640983: kvm_entry: vcpu 0 CPU 0/KVM-7289 [023] d.... 2925.640983: <hack>: Set DRs, DR6 = 0xffff0ff0 L2 detects failure CPU 0/KVM-7289 [023] d.... 2925.640987: kvm_exit: vcpu 0 reason HLT L1 reads DR6 (confirms failure) CPU 0/KVM-7289 [023] d.... 2925.640990: <hack>: Sync DRs, DR6 = 0xffff0ff0 L0's view: ========== L2 reads DR6, arch.dr6 = 0 CPU 23/KVM-5046 [001] d.... 3410.005610: kvm_exit: vcpu 23 reason DR_ACCESS info1 0x0000000000000216 CPU 23/KVM-5046 [001] ..... 3410.005610: kvm_nested_vmexit: vcpu 23 reason DR_ACCESS info1 0x0000000000000216 L2 => L1 nested VM-Exit CPU 23/KVM-5046 [001] ..... 3410.005610: kvm_nested_vmexit_inject: reason: DR_ACCESS ext_inf1: 0x0000000000000216 CPU 23/KVM-5046 [001] d.... 3410.005610: kvm_entry: vcpu 23 CPU 23/KVM-5046 [001] d.... 3410.005611: kvm_exit: vcpu 23 reason VMREAD CPU 23/KVM-5046 [001] d.... 3410.005611: kvm_entry: vcpu 23 CPU 23/KVM-5046 [001] d.... 3410.005612: kvm_exit: vcpu 23 reason VMREAD CPU 23/KVM-5046 [001] d.... 3410.005612: kvm_entry: vcpu 23 L1 writes DR7, L0 disables DR interception CPU 23/KVM-5046 [001] d.... 3410.005612: kvm_exit: vcpu 23 reason DR_ACCESS info1 0x0000000000000007 CPU 23/KVM-5046 [001] d.... 3410.005613: kvm_entry: vcpu 23 L0 writes DR6 = 0 (arch.dr6) CPU 23/KVM-5046 [001] d.... 3410.005613: <hack>: Set DRs, DR6 = 0xffff0ff0 A: <L1 writes DR6 = 1, no interception, arch.dr6 is still '0'> B: CPU 23/KVM-5046 [001] d.... 3410.005614: kvm_exit: vcpu 23 reason PREEMPTION_TIMER CPU 23/KVM-5046 [001] d.... 3410.005614: kvm_entry: vcpu 23 C: L0 writes DR6 = 0 (arch.dr6) CPU 23/KVM-5046 [001] d.... 3410.005614: <hack>: Set DRs, DR6 = 0xffff0ff0 L1 => L2 nested VM-Enter CPU 23/KVM-5046 [001] d.... 3410.005616: kvm_exit: vcpu 23 reason VMRESUME L0 reads DR6, arch.dr6 = 0 Reported-by: John Stultz <jstultz(a)google.com> Closes: https://lkml.kernel.org/r/CANDhNCq5_F3HfFYABqFGCA1bPd_%2BxgNj-iDQhH4tDk%2Bw… Fixes: 375e28ffc0cf ("KVM: X86: Set host DR6 only on VMX and for KVM_DEBUGREG_WONT_EXIT") Fixes: d67668e9dd76 ("KVM: x86, SVM: isolate vcpu->arch.dr6 from vmcb->save.dr6") Cc: stable(a)vger.kernel.org Cc: Jim Mattson <jmattson(a)google.com> Tested-by: John Stultz <jstultz(a)google.com> Link: https://lore.kernel.org/r/20250125011833.3644371-1-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc(a)google.com> diff --git a/arch/x86/include/asm/kvm-x86-ops.h b/arch/x86/include/asm/kvm-x86-ops.h index c35550581da0..823c0434bbad 100644 --- a/arch/x86/include/asm/kvm-x86-ops.h +++ b/arch/x86/include/asm/kvm-x86-ops.h @@ -48,6 +48,7 @@ KVM_X86_OP(set_idt) KVM_X86_OP(get_gdt) KVM_X86_OP(set_gdt) KVM_X86_OP(sync_dirty_debug_regs) +KVM_X86_OP(set_dr6) KVM_X86_OP(set_dr7) KVM_X86_OP(cache_reg) KVM_X86_OP(get_rflags) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index b15cde0a9b5c..0b7af5902ff7 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1696,6 +1696,7 @@ struct kvm_x86_ops { void (*get_gdt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt); void (*set_gdt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt); void (*sync_dirty_debug_regs)(struct kvm_vcpu *vcpu); + void (*set_dr6)(struct kvm_vcpu *vcpu, unsigned long value); void (*set_dr7)(struct kvm_vcpu *vcpu, unsigned long value); void (*cache_reg)(struct kvm_vcpu *vcpu, enum kvm_reg reg); unsigned long (*get_rflags)(struct kvm_vcpu *vcpu); diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index 7640a84e554a..a713c803a3a3 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -1991,11 +1991,11 @@ static void new_asid(struct vcpu_svm *svm, struct svm_cpu_data *sd) svm->asid = sd->next_asid++; } -static void svm_set_dr6(struct vcpu_svm *svm, unsigned long value) +static void svm_set_dr6(struct kvm_vcpu *vcpu, unsigned long value) { - struct vmcb *vmcb = svm->vmcb; + struct vmcb *vmcb = to_svm(vcpu)->vmcb; - if (svm->vcpu.arch.guest_state_protected) + if (vcpu->arch.guest_state_protected) return; if (unlikely(value != vmcb->save.dr6)) { @@ -4247,10 +4247,8 @@ static __no_kcsan fastpath_t svm_vcpu_run(struct kvm_vcpu *vcpu, * Run with all-zero DR6 unless needed, so that we can get the exact cause * of a #DB. */ - if (unlikely(vcpu->arch.switch_db_regs & KVM_DEBUGREG_WONT_EXIT)) - svm_set_dr6(svm, vcpu->arch.dr6); - else - svm_set_dr6(svm, DR6_ACTIVE_LOW); + if (likely(!(vcpu->arch.switch_db_regs & KVM_DEBUGREG_WONT_EXIT))) + svm_set_dr6(vcpu, DR6_ACTIVE_LOW); clgi(); kvm_load_guest_xsave_state(vcpu); @@ -5043,6 +5041,7 @@ static struct kvm_x86_ops svm_x86_ops __initdata = { .set_idt = svm_set_idt, .get_gdt = svm_get_gdt, .set_gdt = svm_set_gdt, + .set_dr6 = svm_set_dr6, .set_dr7 = svm_set_dr7, .sync_dirty_debug_regs = svm_sync_dirty_debug_regs, .cache_reg = svm_cache_reg, diff --git a/arch/x86/kvm/vmx/main.c b/arch/x86/kvm/vmx/main.c index 2427f918e763..43ee9ed11291 100644 --- a/arch/x86/kvm/vmx/main.c +++ b/arch/x86/kvm/vmx/main.c @@ -61,6 +61,7 @@ struct kvm_x86_ops vt_x86_ops __initdata = { .set_idt = vmx_set_idt, .get_gdt = vmx_get_gdt, .set_gdt = vmx_set_gdt, + .set_dr6 = vmx_set_dr6, .set_dr7 = vmx_set_dr7, .sync_dirty_debug_regs = vmx_sync_dirty_debug_regs, .cache_reg = vmx_cache_reg, diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index f72835e85b6d..6c56d5235f0f 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -5648,6 +5648,12 @@ void vmx_sync_dirty_debug_regs(struct kvm_vcpu *vcpu) set_debugreg(DR6_RESERVED, 6); } +void vmx_set_dr6(struct kvm_vcpu *vcpu, unsigned long val) +{ + lockdep_assert_irqs_disabled(); + set_debugreg(vcpu->arch.dr6, 6); +} + void vmx_set_dr7(struct kvm_vcpu *vcpu, unsigned long val) { vmcs_writel(GUEST_DR7, val); @@ -7417,10 +7423,6 @@ fastpath_t vmx_vcpu_run(struct kvm_vcpu *vcpu, bool force_immediate_exit) vmx->loaded_vmcs->host_state.cr4 = cr4; } - /* When KVM_DEBUGREG_WONT_EXIT, dr6 is accessible in guest. */ - if (unlikely(vcpu->arch.switch_db_regs & KVM_DEBUGREG_WONT_EXIT)) - set_debugreg(vcpu->arch.dr6, 6); - /* When single-stepping over STI and MOV SS, we must clear the * corresponding interruptibility bits in the guest state. Otherwise * vmentry fails as it then expects bit 14 (BS) in pending debug diff --git a/arch/x86/kvm/vmx/x86_ops.h b/arch/x86/kvm/vmx/x86_ops.h index ce3295a67c04..430773a5ef8e 100644 --- a/arch/x86/kvm/vmx/x86_ops.h +++ b/arch/x86/kvm/vmx/x86_ops.h @@ -73,6 +73,7 @@ void vmx_get_idt(struct kvm_vcpu *vcpu, struct desc_ptr *dt); void vmx_set_idt(struct kvm_vcpu *vcpu, struct desc_ptr *dt); void vmx_get_gdt(struct kvm_vcpu *vcpu, struct desc_ptr *dt); void vmx_set_gdt(struct kvm_vcpu *vcpu, struct desc_ptr *dt); +void vmx_set_dr6(struct kvm_vcpu *vcpu, unsigned long val); void vmx_set_dr7(struct kvm_vcpu *vcpu, unsigned long val); void vmx_sync_dirty_debug_regs(struct kvm_vcpu *vcpu); void vmx_cache_reg(struct kvm_vcpu *vcpu, enum kvm_reg reg); diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 8e77e61d4fbd..02159c967d29 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -10961,6 +10961,9 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu) set_debugreg(vcpu->arch.eff_db[1], 1); set_debugreg(vcpu->arch.eff_db[2], 2); set_debugreg(vcpu->arch.eff_db[3], 3); + /* When KVM_DEBUGREG_WONT_EXIT, dr6 is accessible in guest. */ + if (unlikely(vcpu->arch.switch_db_regs & KVM_DEBUGREG_WONT_EXIT)) + kvm_x86_call(set_dr6)(vcpu, vcpu->arch.dr6); } else if (unlikely(hw_breakpoint_active())) { set_debugreg(0, 7); }

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FAILED: patch "[PATCH] KVM: x86: Load DR6 with guest value only before entering" 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 c2fee09fc167c74a64adb08656cb993ea475197e # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025021809-census-mammal-224b@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From c2fee09fc167c74a64adb08656cb993ea475197e Mon Sep 17 00:00:00 2001 From: Sean Christopherson <seanjc(a)google.com> Date: Fri, 24 Jan 2025 17:18:33 -0800 Subject: [PATCH] KVM: x86: Load DR6 with guest value only before entering .vcpu_run() loop Move the conditional loading of hardware DR6 with the guest's DR6 value out of the core .vcpu_run() loop to fix a bug where KVM can load hardware with a stale vcpu->arch.dr6. When the guest accesses a DR and host userspace isn't debugging the guest, KVM disables DR interception and loads the guest's values into hardware on VM-Enter and saves them on VM-Exit. This allows the guest to access DRs at will, e.g. so that a sequence of DR accesses to configure a breakpoint only generates one VM-Exit. For DR0-DR3, the logic/behavior is identical between VMX and SVM, and also identical between KVM_DEBUGREG_BP_ENABLED (userspace debugging the guest) and KVM_DEBUGREG_WONT_EXIT (guest using DRs), and so KVM handles loading DR0-DR3 in common code, _outside_ of the core kvm_x86_ops.vcpu_run() loop. But for DR6, the guest's value doesn't need to be loaded into hardware for KVM_DEBUGREG_BP_ENABLED, and SVM provides a dedicated VMCB field whereas VMX requires software to manually load the guest value, and so loading the guest's value into DR6 is handled by {svm,vmx}_vcpu_run(), i.e. is done _inside_ the core run loop. Unfortunately, saving the guest values on VM-Exit is initiated by common x86, again outside of the core run loop. If the guest modifies DR6 (in hardware, when DR interception is disabled), and then the next VM-Exit is a fastpath VM-Exit, KVM will reload hardware DR6 with vcpu->arch.dr6 and clobber the guest's actual value. The bug shows up primarily with nested VMX because KVM handles the VMX preemption timer in the fastpath, and the window between hardware DR6 being modified (in guest context) and DR6 being read by guest software is orders of magnitude larger in a nested setup. E.g. in non-nested, the VMX preemption timer would need to fire precisely between #DB injection and the #DB handler's read of DR6, whereas with a KVM-on-KVM setup, the window where hardware DR6 is "dirty" extends all the way from L1 writing DR6 to VMRESUME (in L1). L1's view: ========== <L1 disables DR interception> CPU 0/KVM-7289 [023] d.... 2925.640961: kvm_entry: vcpu 0 A: L1 Writes DR6 CPU 0/KVM-7289 [023] d.... 2925.640963: <hack>: Set DRs, DR6 = 0xffff0ff1 B: CPU 0/KVM-7289 [023] d.... 2925.640967: kvm_exit: vcpu 0 reason EXTERNAL_INTERRUPT intr_info 0x800000ec D: L1 reads DR6, arch.dr6 = 0 CPU 0/KVM-7289 [023] d.... 2925.640969: <hack>: Sync DRs, DR6 = 0xffff0ff0 CPU 0/KVM-7289 [023] d.... 2925.640976: kvm_entry: vcpu 0 L2 reads DR6, L1 disables DR interception CPU 0/KVM-7289 [023] d.... 2925.640980: kvm_exit: vcpu 0 reason DR_ACCESS info1 0x0000000000000216 CPU 0/KVM-7289 [023] d.... 2925.640983: kvm_entry: vcpu 0 CPU 0/KVM-7289 [023] d.... 2925.640983: <hack>: Set DRs, DR6 = 0xffff0ff0 L2 detects failure CPU 0/KVM-7289 [023] d.... 2925.640987: kvm_exit: vcpu 0 reason HLT L1 reads DR6 (confirms failure) CPU 0/KVM-7289 [023] d.... 2925.640990: <hack>: Sync DRs, DR6 = 0xffff0ff0 L0's view: ========== L2 reads DR6, arch.dr6 = 0 CPU 23/KVM-5046 [001] d.... 3410.005610: kvm_exit: vcpu 23 reason DR_ACCESS info1 0x0000000000000216 CPU 23/KVM-5046 [001] ..... 3410.005610: kvm_nested_vmexit: vcpu 23 reason DR_ACCESS info1 0x0000000000000216 L2 => L1 nested VM-Exit CPU 23/KVM-5046 [001] ..... 3410.005610: kvm_nested_vmexit_inject: reason: DR_ACCESS ext_inf1: 0x0000000000000216 CPU 23/KVM-5046 [001] d.... 3410.005610: kvm_entry: vcpu 23 CPU 23/KVM-5046 [001] d.... 3410.005611: kvm_exit: vcpu 23 reason VMREAD CPU 23/KVM-5046 [001] d.... 3410.005611: kvm_entry: vcpu 23 CPU 23/KVM-5046 [001] d.... 3410.005612: kvm_exit: vcpu 23 reason VMREAD CPU 23/KVM-5046 [001] d.... 3410.005612: kvm_entry: vcpu 23 L1 writes DR7, L0 disables DR interception CPU 23/KVM-5046 [001] d.... 3410.005612: kvm_exit: vcpu 23 reason DR_ACCESS info1 0x0000000000000007 CPU 23/KVM-5046 [001] d.... 3410.005613: kvm_entry: vcpu 23 L0 writes DR6 = 0 (arch.dr6) CPU 23/KVM-5046 [001] d.... 3410.005613: <hack>: Set DRs, DR6 = 0xffff0ff0 A: <L1 writes DR6 = 1, no interception, arch.dr6 is still '0'> B: CPU 23/KVM-5046 [001] d.... 3410.005614: kvm_exit: vcpu 23 reason PREEMPTION_TIMER CPU 23/KVM-5046 [001] d.... 3410.005614: kvm_entry: vcpu 23 C: L0 writes DR6 = 0 (arch.dr6) CPU 23/KVM-5046 [001] d.... 3410.005614: <hack>: Set DRs, DR6 = 0xffff0ff0 L1 => L2 nested VM-Enter CPU 23/KVM-5046 [001] d.... 3410.005616: kvm_exit: vcpu 23 reason VMRESUME L0 reads DR6, arch.dr6 = 0 Reported-by: John Stultz <jstultz(a)google.com> Closes: https://lkml.kernel.org/r/CANDhNCq5_F3HfFYABqFGCA1bPd_%2BxgNj-iDQhH4tDk%2Bw… Fixes: 375e28ffc0cf ("KVM: X86: Set host DR6 only on VMX and for KVM_DEBUGREG_WONT_EXIT") Fixes: d67668e9dd76 ("KVM: x86, SVM: isolate vcpu->arch.dr6 from vmcb->save.dr6") Cc: stable(a)vger.kernel.org Cc: Jim Mattson <jmattson(a)google.com> Tested-by: John Stultz <jstultz(a)google.com> Link: https://lore.kernel.org/r/20250125011833.3644371-1-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc(a)google.com> diff --git a/arch/x86/include/asm/kvm-x86-ops.h b/arch/x86/include/asm/kvm-x86-ops.h index c35550581da0..823c0434bbad 100644 --- a/arch/x86/include/asm/kvm-x86-ops.h +++ b/arch/x86/include/asm/kvm-x86-ops.h @@ -48,6 +48,7 @@ KVM_X86_OP(set_idt) KVM_X86_OP(get_gdt) KVM_X86_OP(set_gdt) KVM_X86_OP(sync_dirty_debug_regs) +KVM_X86_OP(set_dr6) KVM_X86_OP(set_dr7) KVM_X86_OP(cache_reg) KVM_X86_OP(get_rflags) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index b15cde0a9b5c..0b7af5902ff7 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1696,6 +1696,7 @@ struct kvm_x86_ops { void (*get_gdt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt); void (*set_gdt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt); void (*sync_dirty_debug_regs)(struct kvm_vcpu *vcpu); + void (*set_dr6)(struct kvm_vcpu *vcpu, unsigned long value); void (*set_dr7)(struct kvm_vcpu *vcpu, unsigned long value); void (*cache_reg)(struct kvm_vcpu *vcpu, enum kvm_reg reg); unsigned long (*get_rflags)(struct kvm_vcpu *vcpu); diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index 7640a84e554a..a713c803a3a3 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -1991,11 +1991,11 @@ static void new_asid(struct vcpu_svm *svm, struct svm_cpu_data *sd) svm->asid = sd->next_asid++; } -static void svm_set_dr6(struct vcpu_svm *svm, unsigned long value) +static void svm_set_dr6(struct kvm_vcpu *vcpu, unsigned long value) { - struct vmcb *vmcb = svm->vmcb; + struct vmcb *vmcb = to_svm(vcpu)->vmcb; - if (svm->vcpu.arch.guest_state_protected) + if (vcpu->arch.guest_state_protected) return; if (unlikely(value != vmcb->save.dr6)) { @@ -4247,10 +4247,8 @@ static __no_kcsan fastpath_t svm_vcpu_run(struct kvm_vcpu *vcpu, * Run with all-zero DR6 unless needed, so that we can get the exact cause * of a #DB. */ - if (unlikely(vcpu->arch.switch_db_regs & KVM_DEBUGREG_WONT_EXIT)) - svm_set_dr6(svm, vcpu->arch.dr6); - else - svm_set_dr6(svm, DR6_ACTIVE_LOW); + if (likely(!(vcpu->arch.switch_db_regs & KVM_DEBUGREG_WONT_EXIT))) + svm_set_dr6(vcpu, DR6_ACTIVE_LOW); clgi(); kvm_load_guest_xsave_state(vcpu); @@ -5043,6 +5041,7 @@ static struct kvm_x86_ops svm_x86_ops __initdata = { .set_idt = svm_set_idt, .get_gdt = svm_get_gdt, .set_gdt = svm_set_gdt, + .set_dr6 = svm_set_dr6, .set_dr7 = svm_set_dr7, .sync_dirty_debug_regs = svm_sync_dirty_debug_regs, .cache_reg = svm_cache_reg, diff --git a/arch/x86/kvm/vmx/main.c b/arch/x86/kvm/vmx/main.c index 2427f918e763..43ee9ed11291 100644 --- a/arch/x86/kvm/vmx/main.c +++ b/arch/x86/kvm/vmx/main.c @@ -61,6 +61,7 @@ struct kvm_x86_ops vt_x86_ops __initdata = { .set_idt = vmx_set_idt, .get_gdt = vmx_get_gdt, .set_gdt = vmx_set_gdt, + .set_dr6 = vmx_set_dr6, .set_dr7 = vmx_set_dr7, .sync_dirty_debug_regs = vmx_sync_dirty_debug_regs, .cache_reg = vmx_cache_reg, diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index f72835e85b6d..6c56d5235f0f 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -5648,6 +5648,12 @@ void vmx_sync_dirty_debug_regs(struct kvm_vcpu *vcpu) set_debugreg(DR6_RESERVED, 6); } +void vmx_set_dr6(struct kvm_vcpu *vcpu, unsigned long val) +{ + lockdep_assert_irqs_disabled(); + set_debugreg(vcpu->arch.dr6, 6); +} + void vmx_set_dr7(struct kvm_vcpu *vcpu, unsigned long val) { vmcs_writel(GUEST_DR7, val); @@ -7417,10 +7423,6 @@ fastpath_t vmx_vcpu_run(struct kvm_vcpu *vcpu, bool force_immediate_exit) vmx->loaded_vmcs->host_state.cr4 = cr4; } - /* When KVM_DEBUGREG_WONT_EXIT, dr6 is accessible in guest. */ - if (unlikely(vcpu->arch.switch_db_regs & KVM_DEBUGREG_WONT_EXIT)) - set_debugreg(vcpu->arch.dr6, 6); - /* When single-stepping over STI and MOV SS, we must clear the * corresponding interruptibility bits in the guest state. Otherwise * vmentry fails as it then expects bit 14 (BS) in pending debug diff --git a/arch/x86/kvm/vmx/x86_ops.h b/arch/x86/kvm/vmx/x86_ops.h index ce3295a67c04..430773a5ef8e 100644 --- a/arch/x86/kvm/vmx/x86_ops.h +++ b/arch/x86/kvm/vmx/x86_ops.h @@ -73,6 +73,7 @@ void vmx_get_idt(struct kvm_vcpu *vcpu, struct desc_ptr *dt); void vmx_set_idt(struct kvm_vcpu *vcpu, struct desc_ptr *dt); void vmx_get_gdt(struct kvm_vcpu *vcpu, struct desc_ptr *dt); void vmx_set_gdt(struct kvm_vcpu *vcpu, struct desc_ptr *dt); +void vmx_set_dr6(struct kvm_vcpu *vcpu, unsigned long val); void vmx_set_dr7(struct kvm_vcpu *vcpu, unsigned long val); void vmx_sync_dirty_debug_regs(struct kvm_vcpu *vcpu); void vmx_cache_reg(struct kvm_vcpu *vcpu, enum kvm_reg reg); diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 8e77e61d4fbd..02159c967d29 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -10961,6 +10961,9 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu) set_debugreg(vcpu->arch.eff_db[1], 1); set_debugreg(vcpu->arch.eff_db[2], 2); set_debugreg(vcpu->arch.eff_db[3], 3); + /* When KVM_DEBUGREG_WONT_EXIT, dr6 is accessible in guest. */ + if (unlikely(vcpu->arch.switch_db_regs & KVM_DEBUGREG_WONT_EXIT)) + kvm_x86_call(set_dr6)(vcpu, vcpu->arch.dr6); } else if (unlikely(hw_breakpoint_active())) { set_debugreg(0, 7); }

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FAILED: patch "[PATCH] KVM: x86: Load DR6 with guest value only before entering" 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 c2fee09fc167c74a64adb08656cb993ea475197e # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025021812-candied-hamper-7f08@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From c2fee09fc167c74a64adb08656cb993ea475197e Mon Sep 17 00:00:00 2001 From: Sean Christopherson <seanjc(a)google.com> Date: Fri, 24 Jan 2025 17:18:33 -0800 Subject: [PATCH] KVM: x86: Load DR6 with guest value only before entering .vcpu_run() loop Move the conditional loading of hardware DR6 with the guest's DR6 value out of the core .vcpu_run() loop to fix a bug where KVM can load hardware with a stale vcpu->arch.dr6. When the guest accesses a DR and host userspace isn't debugging the guest, KVM disables DR interception and loads the guest's values into hardware on VM-Enter and saves them on VM-Exit. This allows the guest to access DRs at will, e.g. so that a sequence of DR accesses to configure a breakpoint only generates one VM-Exit. For DR0-DR3, the logic/behavior is identical between VMX and SVM, and also identical between KVM_DEBUGREG_BP_ENABLED (userspace debugging the guest) and KVM_DEBUGREG_WONT_EXIT (guest using DRs), and so KVM handles loading DR0-DR3 in common code, _outside_ of the core kvm_x86_ops.vcpu_run() loop. But for DR6, the guest's value doesn't need to be loaded into hardware for KVM_DEBUGREG_BP_ENABLED, and SVM provides a dedicated VMCB field whereas VMX requires software to manually load the guest value, and so loading the guest's value into DR6 is handled by {svm,vmx}_vcpu_run(), i.e. is done _inside_ the core run loop. Unfortunately, saving the guest values on VM-Exit is initiated by common x86, again outside of the core run loop. If the guest modifies DR6 (in hardware, when DR interception is disabled), and then the next VM-Exit is a fastpath VM-Exit, KVM will reload hardware DR6 with vcpu->arch.dr6 and clobber the guest's actual value. The bug shows up primarily with nested VMX because KVM handles the VMX preemption timer in the fastpath, and the window between hardware DR6 being modified (in guest context) and DR6 being read by guest software is orders of magnitude larger in a nested setup. E.g. in non-nested, the VMX preemption timer would need to fire precisely between #DB injection and the #DB handler's read of DR6, whereas with a KVM-on-KVM setup, the window where hardware DR6 is "dirty" extends all the way from L1 writing DR6 to VMRESUME (in L1). L1's view: ========== <L1 disables DR interception> CPU 0/KVM-7289 [023] d.... 2925.640961: kvm_entry: vcpu 0 A: L1 Writes DR6 CPU 0/KVM-7289 [023] d.... 2925.640963: <hack>: Set DRs, DR6 = 0xffff0ff1 B: CPU 0/KVM-7289 [023] d.... 2925.640967: kvm_exit: vcpu 0 reason EXTERNAL_INTERRUPT intr_info 0x800000ec D: L1 reads DR6, arch.dr6 = 0 CPU 0/KVM-7289 [023] d.... 2925.640969: <hack>: Sync DRs, DR6 = 0xffff0ff0 CPU 0/KVM-7289 [023] d.... 2925.640976: kvm_entry: vcpu 0 L2 reads DR6, L1 disables DR interception CPU 0/KVM-7289 [023] d.... 2925.640980: kvm_exit: vcpu 0 reason DR_ACCESS info1 0x0000000000000216 CPU 0/KVM-7289 [023] d.... 2925.640983: kvm_entry: vcpu 0 CPU 0/KVM-7289 [023] d.... 2925.640983: <hack>: Set DRs, DR6 = 0xffff0ff0 L2 detects failure CPU 0/KVM-7289 [023] d.... 2925.640987: kvm_exit: vcpu 0 reason HLT L1 reads DR6 (confirms failure) CPU 0/KVM-7289 [023] d.... 2925.640990: <hack>: Sync DRs, DR6 = 0xffff0ff0 L0's view: ========== L2 reads DR6, arch.dr6 = 0 CPU 23/KVM-5046 [001] d.... 3410.005610: kvm_exit: vcpu 23 reason DR_ACCESS info1 0x0000000000000216 CPU 23/KVM-5046 [001] ..... 3410.005610: kvm_nested_vmexit: vcpu 23 reason DR_ACCESS info1 0x0000000000000216 L2 => L1 nested VM-Exit CPU 23/KVM-5046 [001] ..... 3410.005610: kvm_nested_vmexit_inject: reason: DR_ACCESS ext_inf1: 0x0000000000000216 CPU 23/KVM-5046 [001] d.... 3410.005610: kvm_entry: vcpu 23 CPU 23/KVM-5046 [001] d.... 3410.005611: kvm_exit: vcpu 23 reason VMREAD CPU 23/KVM-5046 [001] d.... 3410.005611: kvm_entry: vcpu 23 CPU 23/KVM-5046 [001] d.... 3410.005612: kvm_exit: vcpu 23 reason VMREAD CPU 23/KVM-5046 [001] d.... 3410.005612: kvm_entry: vcpu 23 L1 writes DR7, L0 disables DR interception CPU 23/KVM-5046 [001] d.... 3410.005612: kvm_exit: vcpu 23 reason DR_ACCESS info1 0x0000000000000007 CPU 23/KVM-5046 [001] d.... 3410.005613: kvm_entry: vcpu 23 L0 writes DR6 = 0 (arch.dr6) CPU 23/KVM-5046 [001] d.... 3410.005613: <hack>: Set DRs, DR6 = 0xffff0ff0 A: <L1 writes DR6 = 1, no interception, arch.dr6 is still '0'> B: CPU 23/KVM-5046 [001] d.... 3410.005614: kvm_exit: vcpu 23 reason PREEMPTION_TIMER CPU 23/KVM-5046 [001] d.... 3410.005614: kvm_entry: vcpu 23 C: L0 writes DR6 = 0 (arch.dr6) CPU 23/KVM-5046 [001] d.... 3410.005614: <hack>: Set DRs, DR6 = 0xffff0ff0 L1 => L2 nested VM-Enter CPU 23/KVM-5046 [001] d.... 3410.005616: kvm_exit: vcpu 23 reason VMRESUME L0 reads DR6, arch.dr6 = 0 Reported-by: John Stultz <jstultz(a)google.com> Closes: https://lkml.kernel.org/r/CANDhNCq5_F3HfFYABqFGCA1bPd_%2BxgNj-iDQhH4tDk%2Bw… Fixes: 375e28ffc0cf ("KVM: X86: Set host DR6 only on VMX and for KVM_DEBUGREG_WONT_EXIT") Fixes: d67668e9dd76 ("KVM: x86, SVM: isolate vcpu->arch.dr6 from vmcb->save.dr6") Cc: stable(a)vger.kernel.org Cc: Jim Mattson <jmattson(a)google.com> Tested-by: John Stultz <jstultz(a)google.com> Link: https://lore.kernel.org/r/20250125011833.3644371-1-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc(a)google.com> diff --git a/arch/x86/include/asm/kvm-x86-ops.h b/arch/x86/include/asm/kvm-x86-ops.h index c35550581da0..823c0434bbad 100644 --- a/arch/x86/include/asm/kvm-x86-ops.h +++ b/arch/x86/include/asm/kvm-x86-ops.h @@ -48,6 +48,7 @@ KVM_X86_OP(set_idt) KVM_X86_OP(get_gdt) KVM_X86_OP(set_gdt) KVM_X86_OP(sync_dirty_debug_regs) +KVM_X86_OP(set_dr6) KVM_X86_OP(set_dr7) KVM_X86_OP(cache_reg) KVM_X86_OP(get_rflags) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index b15cde0a9b5c..0b7af5902ff7 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1696,6 +1696,7 @@ struct kvm_x86_ops { void (*get_gdt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt); void (*set_gdt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt); void (*sync_dirty_debug_regs)(struct kvm_vcpu *vcpu); + void (*set_dr6)(struct kvm_vcpu *vcpu, unsigned long value); void (*set_dr7)(struct kvm_vcpu *vcpu, unsigned long value); void (*cache_reg)(struct kvm_vcpu *vcpu, enum kvm_reg reg); unsigned long (*get_rflags)(struct kvm_vcpu *vcpu); diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index 7640a84e554a..a713c803a3a3 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -1991,11 +1991,11 @@ static void new_asid(struct vcpu_svm *svm, struct svm_cpu_data *sd) svm->asid = sd->next_asid++; } -static void svm_set_dr6(struct vcpu_svm *svm, unsigned long value) +static void svm_set_dr6(struct kvm_vcpu *vcpu, unsigned long value) { - struct vmcb *vmcb = svm->vmcb; + struct vmcb *vmcb = to_svm(vcpu)->vmcb; - if (svm->vcpu.arch.guest_state_protected) + if (vcpu->arch.guest_state_protected) return; if (unlikely(value != vmcb->save.dr6)) { @@ -4247,10 +4247,8 @@ static __no_kcsan fastpath_t svm_vcpu_run(struct kvm_vcpu *vcpu, * Run with all-zero DR6 unless needed, so that we can get the exact cause * of a #DB. */ - if (unlikely(vcpu->arch.switch_db_regs & KVM_DEBUGREG_WONT_EXIT)) - svm_set_dr6(svm, vcpu->arch.dr6); - else - svm_set_dr6(svm, DR6_ACTIVE_LOW); + if (likely(!(vcpu->arch.switch_db_regs & KVM_DEBUGREG_WONT_EXIT))) + svm_set_dr6(vcpu, DR6_ACTIVE_LOW); clgi(); kvm_load_guest_xsave_state(vcpu); @@ -5043,6 +5041,7 @@ static struct kvm_x86_ops svm_x86_ops __initdata = { .set_idt = svm_set_idt, .get_gdt = svm_get_gdt, .set_gdt = svm_set_gdt, + .set_dr6 = svm_set_dr6, .set_dr7 = svm_set_dr7, .sync_dirty_debug_regs = svm_sync_dirty_debug_regs, .cache_reg = svm_cache_reg, diff --git a/arch/x86/kvm/vmx/main.c b/arch/x86/kvm/vmx/main.c index 2427f918e763..43ee9ed11291 100644 --- a/arch/x86/kvm/vmx/main.c +++ b/arch/x86/kvm/vmx/main.c @@ -61,6 +61,7 @@ struct kvm_x86_ops vt_x86_ops __initdata = { .set_idt = vmx_set_idt, .get_gdt = vmx_get_gdt, .set_gdt = vmx_set_gdt, + .set_dr6 = vmx_set_dr6, .set_dr7 = vmx_set_dr7, .sync_dirty_debug_regs = vmx_sync_dirty_debug_regs, .cache_reg = vmx_cache_reg, diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index f72835e85b6d..6c56d5235f0f 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -5648,6 +5648,12 @@ void vmx_sync_dirty_debug_regs(struct kvm_vcpu *vcpu) set_debugreg(DR6_RESERVED, 6); } +void vmx_set_dr6(struct kvm_vcpu *vcpu, unsigned long val) +{ + lockdep_assert_irqs_disabled(); + set_debugreg(vcpu->arch.dr6, 6); +} + void vmx_set_dr7(struct kvm_vcpu *vcpu, unsigned long val) { vmcs_writel(GUEST_DR7, val); @@ -7417,10 +7423,6 @@ fastpath_t vmx_vcpu_run(struct kvm_vcpu *vcpu, bool force_immediate_exit) vmx->loaded_vmcs->host_state.cr4 = cr4; } - /* When KVM_DEBUGREG_WONT_EXIT, dr6 is accessible in guest. */ - if (unlikely(vcpu->arch.switch_db_regs & KVM_DEBUGREG_WONT_EXIT)) - set_debugreg(vcpu->arch.dr6, 6); - /* When single-stepping over STI and MOV SS, we must clear the * corresponding interruptibility bits in the guest state. Otherwise * vmentry fails as it then expects bit 14 (BS) in pending debug diff --git a/arch/x86/kvm/vmx/x86_ops.h b/arch/x86/kvm/vmx/x86_ops.h index ce3295a67c04..430773a5ef8e 100644 --- a/arch/x86/kvm/vmx/x86_ops.h +++ b/arch/x86/kvm/vmx/x86_ops.h @@ -73,6 +73,7 @@ void vmx_get_idt(struct kvm_vcpu *vcpu, struct desc_ptr *dt); void vmx_set_idt(struct kvm_vcpu *vcpu, struct desc_ptr *dt); void vmx_get_gdt(struct kvm_vcpu *vcpu, struct desc_ptr *dt); void vmx_set_gdt(struct kvm_vcpu *vcpu, struct desc_ptr *dt); +void vmx_set_dr6(struct kvm_vcpu *vcpu, unsigned long val); void vmx_set_dr7(struct kvm_vcpu *vcpu, unsigned long val); void vmx_sync_dirty_debug_regs(struct kvm_vcpu *vcpu); void vmx_cache_reg(struct kvm_vcpu *vcpu, enum kvm_reg reg); diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 8e77e61d4fbd..02159c967d29 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -10961,6 +10961,9 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu) set_debugreg(vcpu->arch.eff_db[1], 1); set_debugreg(vcpu->arch.eff_db[2], 2); set_debugreg(vcpu->arch.eff_db[3], 3); + /* When KVM_DEBUGREG_WONT_EXIT, dr6 is accessible in guest. */ + if (unlikely(vcpu->arch.switch_db_regs & KVM_DEBUGREG_WONT_EXIT)) + kvm_x86_call(set_dr6)(vcpu, vcpu->arch.dr6); } else if (unlikely(hw_breakpoint_active())) { set_debugreg(0, 7); }

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