------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 1 PID: 4855 Comm: udevd Not tainted 5.15.181-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __brelse fs/buffer.c:1148 [inline] pc : brelse include/linux/buffer_head.h:325 [inline] pc : __invalidate_bh_lrus fs/buffer.c:1394 [inline] pc : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 lr : __brelse fs/buffer.c:1148 [inline] lr : brelse include/linux/buffer_head.h:325 [inline] lr : __invalidate_bh_lrus fs/buffer.c:1394 [inline] lr : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 sp : ffff80001f0877c0 x29: ffff80001f0877c0 x28: ffff80001414d000 x27: 1fffe0003685d253 x26: 0000000000000001 x25: ffff0001b42e9298 x24: 0000000000000000 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000cf9446b8 x20: ffff0001b42e9298 x19: ffff8000113aada0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111a3970 x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : 9ebd7f83c88e7b00 x8 : 9ebd7f83c88e7b00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f0870b8 x4 : ffff80001422f280 x3 : ffff800008503848 x2 : 0000000000000001 x1 : 0000000100000002 x0 : 0000000000000027 Call trace: __brelse fs/buffer.c:1148 [inline] brelse include/linux/buffer_head.h:325 [inline] __invalidate_bh_lrus fs/buffer.c:1394 [inline] invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 smp_call_function_many_cond+0xa50/0xeb0 kernel/smp.c:960 on_each_cpu_cond_mask+0x5c/0xc4 kernel/smp.c:1135 on_each_cpu_cond include/linux/smp.h:105 [inline] invalidate_bh_lrus+0x34/0x40 fs/buffer.c:1426 kill_bdev block/bdev.c:76 [inline] blkdev_flush_mapping+0x168/0x31c block/bdev.c:659 blkdev_put_whole block/bdev.c:690 [inline] blkdev_put+0x490/0x6ac block/bdev.c:957 blkdev_close+0x74/0xb0 block/fops.c:475 __fput+0x1c0/0x7f8 fs/file_table.c:311 ____fput+0x20/0x30 fs/file_table.c:339 task_work_run+0x12c/0x1e0 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x24b4/0x3128 arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 9318 hardirqs last enabled at (9317): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (9318): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (9000): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (8998): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace b25f55a3f632360e ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 1 PID: 4855 Comm: udevd Tainted: G W 5.15.181-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __brelse fs/buffer.c:1148 [inline] pc : brelse include/linux/buffer_head.h:325 [inline] pc : __invalidate_bh_lrus fs/buffer.c:1394 [inline] pc : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 lr : __brelse fs/buffer.c:1148 [inline] lr : brelse include/linux/buffer_head.h:325 [inline] lr : __invalidate_bh_lrus fs/buffer.c:1394 [inline] lr : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 sp : ffff80001f0877c0 x29: ffff80001f0877c0 x28: ffff80001414d000 x27: 1fffe0003685d253 x26: 0000000000000001 x25: ffff0001b42e9298 x24: 0000000000000000 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000cf944a58 x20: ffff0001b42e9298 x19: ffff8000113aada0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111a3970 x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : 9ebd7f83c88e7b00 x8 : 9ebd7f83c88e7b00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f0870b8 x4 : ffff80001422f280 x3 : ffff800008503848 x2 : 0000000000000001 x1 : 0000000100000002 x0 : 0000000000000027 Call trace: __brelse fs/buffer.c:1148 [inline] brelse include/linux/buffer_head.h:325 [inline] __invalidate_bh_lrus fs/buffer.c:1394 [inline] invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 smp_call_function_many_cond+0xa50/0xeb0 kernel/smp.c:960 on_each_cpu_cond_mask+0x5c/0xc4 kernel/smp.c:1135 on_each_cpu_cond include/linux/smp.h:105 [inline] invalidate_bh_lrus+0x34/0x40 fs/buffer.c:1426 kill_bdev block/bdev.c:76 [inline] blkdev_flush_mapping+0x168/0x31c block/bdev.c:659 blkdev_put_whole block/bdev.c:690 [inline] blkdev_put+0x490/0x6ac block/bdev.c:957 blkdev_close+0x74/0xb0 block/fops.c:475 __fput+0x1c0/0x7f8 fs/file_table.c:311 ____fput+0x20/0x30 fs/file_table.c:339 task_work_run+0x12c/0x1e0 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x24b4/0x3128 arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 14104 hardirqs last enabled at (14103): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (14104): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (14052): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (14052): [] handle_softirqs+0xa4c/0xbf0 kernel/softirq.c:586 softirqs last disabled at (14001): [] __do_softirq kernel/softirq.c:592 [inline] softirqs last disabled at (14001): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (14001): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (14001): [] __irq_exit_rcu+0x240/0x440 kernel/softirq.c:641 ---[ end trace b25f55a3f632360f ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 1 PID: 4855 Comm: udevd Tainted: G W 5.15.181-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __brelse fs/buffer.c:1148 [inline] pc : brelse include/linux/buffer_head.h:325 [inline] pc : __invalidate_bh_lrus fs/buffer.c:1394 [inline] pc : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 lr : __brelse fs/buffer.c:1148 [inline] lr : brelse include/linux/buffer_head.h:325 [inline] lr : __invalidate_bh_lrus fs/buffer.c:1394 [inline] lr : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 sp : ffff80001f0877c0 x29: ffff80001f0877c0 x28: ffff80001414d000 x27: 1fffe0003685d253 x26: 0000000000000001 x25: ffff0001b42e9298 x24: 0000000000000000 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000cf944df8 x20: ffff0001b42e9298 x19: ffff8000113aada0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111a3970 x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : 9ebd7f83c88e7b00 x8 : 9ebd7f83c88e7b00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f0870b8 x4 : ffff80001422f280 x3 : ffff800008503848 x2 : 0000000000000001 x1 : 0000000100000002 x0 : 0000000000000027 Call trace: __brelse fs/buffer.c:1148 [inline] brelse include/linux/buffer_head.h:325 [inline] __invalidate_bh_lrus fs/buffer.c:1394 [inline] invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 smp_call_function_many_cond+0xa50/0xeb0 kernel/smp.c:960 on_each_cpu_cond_mask+0x5c/0xc4 kernel/smp.c:1135 on_each_cpu_cond include/linux/smp.h:105 [inline] invalidate_bh_lrus+0x34/0x40 fs/buffer.c:1426 kill_bdev block/bdev.c:76 [inline] blkdev_flush_mapping+0x168/0x31c block/bdev.c:659 blkdev_put_whole block/bdev.c:690 [inline] blkdev_put+0x490/0x6ac block/bdev.c:957 blkdev_close+0x74/0xb0 block/fops.c:475 __fput+0x1c0/0x7f8 fs/file_table.c:311 ____fput+0x20/0x30 fs/file_table.c:339 task_work_run+0x12c/0x1e0 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x24b4/0x3128 arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 21580 hardirqs last enabled at (21579): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (21580): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (20722): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (20720): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace b25f55a3f6323610 ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 1 PID: 4855 Comm: udevd Tainted: G W 5.15.181-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __brelse fs/buffer.c:1148 [inline] pc : brelse include/linux/buffer_head.h:325 [inline] pc : __invalidate_bh_lrus fs/buffer.c:1394 [inline] pc : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 lr : __brelse fs/buffer.c:1148 [inline] lr : brelse include/linux/buffer_head.h:325 [inline] lr : __invalidate_bh_lrus fs/buffer.c:1394 [inline] lr : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 sp : ffff80001f0877c0 x29: ffff80001f0877c0 x28: ffff80001414d000 x27: 1fffe0003685d253 x26: 0000000000000001 x25: ffff0001b42e9298 x24: 0000000000000000 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000cf945230 x20: ffff0001b42e9298 x19: ffff8000113aada0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111a3970 x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : 9ebd7f83c88e7b00 x8 : 9ebd7f83c88e7b00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f0870b8 x4 : ffff80001422f280 x3 : ffff800008503848 x2 : 0000000000000001 x1 : 0000000100000002 x0 : 0000000000000027 Call trace: __brelse fs/buffer.c:1148 [inline] brelse include/linux/buffer_head.h:325 [inline] __invalidate_bh_lrus fs/buffer.c:1394 [inline] invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 smp_call_function_many_cond+0xa50/0xeb0 kernel/smp.c:960 on_each_cpu_cond_mask+0x5c/0xc4 kernel/smp.c:1135 on_each_cpu_cond include/linux/smp.h:105 [inline] invalidate_bh_lrus+0x34/0x40 fs/buffer.c:1426 kill_bdev block/bdev.c:76 [inline] blkdev_flush_mapping+0x168/0x31c block/bdev.c:659 blkdev_put_whole block/bdev.c:690 [inline] blkdev_put+0x490/0x6ac block/bdev.c:957 blkdev_close+0x74/0xb0 block/fops.c:475 __fput+0x1c0/0x7f8 fs/file_table.c:311 ____fput+0x20/0x30 fs/file_table.c:339 task_work_run+0x12c/0x1e0 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x24b4/0x3128 arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 36826 hardirqs last enabled at (36825): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (36826): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (35470): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (35468): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace b25f55a3f6323614 ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 0 PID: 4855 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 0 PID: 4855 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 0 PID: 4855 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 0 PID: 4855 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 0 PID: 4855 Comm: udevd Tainted: G W 5.15.181-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __brelse fs/buffer.c:1148 [inline] pc : brelse include/linux/buffer_head.h:325 [inline] pc : __invalidate_bh_lrus fs/buffer.c:1394 [inline] pc : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 lr : __brelse fs/buffer.c:1148 [inline] lr : brelse include/linux/buffer_head.h:325 [inline] lr : __invalidate_bh_lrus fs/buffer.c:1394 [inline] lr : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 sp : ffff80001f0877c0 x29: ffff80001f0877c0 x28: ffff80001414d000 x27: 1fffe00036859053 x26: 0000000000000001 x25: ffff0001b42c8298 x24: 0000000000000000 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000e68ee5d0 x20: ffff0001b42c8298 x19: ffff8000113aada0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111a3970 x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : 9ebd7f83c88e7b00 x8 : 9ebd7f83c88e7b00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f0870b8 x4 : ffff80001422f280 x3 : ffff800008503848 x2 : 0000000000000001 x1 : 0000000100000002 x0 : 0000000000000027 Call trace: __brelse fs/buffer.c:1148 [inline] brelse include/linux/buffer_head.h:325 [inline] __invalidate_bh_lrus fs/buffer.c:1394 [inline] invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 smp_call_function_many_cond+0xa50/0xeb0 kernel/smp.c:960 on_each_cpu_cond_mask+0x5c/0xc4 kernel/smp.c:1135 on_each_cpu_cond include/linux/smp.h:105 [inline] invalidate_bh_lrus+0x34/0x40 fs/buffer.c:1426 kill_bdev block/bdev.c:76 [inline] blkdev_flush_mapping+0x168/0x31c block/bdev.c:659 blkdev_put_whole block/bdev.c:690 [inline] blkdev_put+0x490/0x6ac block/bdev.c:957 blkdev_close+0x74/0xb0 block/fops.c:475 __fput+0x1c0/0x7f8 fs/file_table.c:311 ____fput+0x20/0x30 fs/file_table.c:339 task_work_run+0x12c/0x1e0 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x24b4/0x3128 arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 116056 hardirqs last enabled at (116055): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (116056): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (114530): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (114528): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace b25f55a3f632361e ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 1 PID: 4855 Comm: udevd Tainted: G W 5.15.181-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __brelse fs/buffer.c:1148 [inline] pc : brelse include/linux/buffer_head.h:325 [inline] pc : __invalidate_bh_lrus fs/buffer.c:1394 [inline] pc : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 lr : __brelse fs/buffer.c:1148 [inline] lr : brelse include/linux/buffer_head.h:325 [inline] lr : __invalidate_bh_lrus fs/buffer.c:1394 [inline] lr : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 sp : ffff80001f0877c0 x29: ffff80001f0877c0 x28: ffff80001414d000 x27: 1fffe0003685d253 x26: 0000000000000001 x25: ffff0001b42e9298 x24: 0000000000000000 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000dd08a230 x20: ffff0001b42e9298 x19: ffff8000113aada0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111a3970 x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : 9ebd7f83c88e7b00 x8 : 9ebd7f83c88e7b00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f0870b8 x4 : ffff80001422f280 x3 : ffff800008503848 x2 : 0000000000000001 x1 : 0000000100000002 x0 : 0000000000000027 Call trace: __brelse fs/buffer.c:1148 [inline] brelse include/linux/buffer_head.h:325 [inline] __invalidate_bh_lrus fs/buffer.c:1394 [inline] invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 smp_call_function_many_cond+0xa50/0xeb0 kernel/smp.c:960 on_each_cpu_cond_mask+0x5c/0xc4 kernel/smp.c:1135 on_each_cpu_cond include/linux/smp.h:105 [inline] invalidate_bh_lrus+0x34/0x40 fs/buffer.c:1426 kill_bdev block/bdev.c:76 [inline] blkdev_flush_mapping+0x168/0x31c block/bdev.c:659 blkdev_put_whole block/bdev.c:690 [inline] blkdev_put+0x490/0x6ac block/bdev.c:957 blkdev_close+0x74/0xb0 block/fops.c:475 __fput+0x1c0/0x7f8 fs/file_table.c:311 ____fput+0x20/0x30 fs/file_table.c:339 task_work_run+0x12c/0x1e0 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x24b4/0x3128 arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 121136 hardirqs last enabled at (121135): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (121136): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (120138): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (120136): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace b25f55a3f632361f ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 1 PID: 4855 Comm: udevd Tainted: G W 5.15.181-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __brelse fs/buffer.c:1148 [inline] pc : brelse include/linux/buffer_head.h:325 [inline] pc : __invalidate_bh_lrus fs/buffer.c:1394 [inline] pc : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 lr : __brelse fs/buffer.c:1148 [inline] lr : brelse include/linux/buffer_head.h:325 [inline] lr : __invalidate_bh_lrus fs/buffer.c:1394 [inline] lr : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 sp : ffff80001f0877c0 x29: ffff80001f0877c0 x28: ffff80001414d000 x27: 1fffe0003685d253 x26: 0000000000000001 x25: ffff0001b42e9298 x24: 0000000000000000 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000dd08a5d0 x20: ffff0001b42e9298 x19: ffff8000113aada0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000083007d8 x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : 9ebd7f83c88e7b00 x8 : 9ebd7f83c88e7b00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f0870b8 x4 : ffff80001422f280 x3 : ffff8000083008e8 x2 : 0000000000000001 x1 : 0000000100000002 x0 : 0000000000000027 Call trace: __brelse fs/buffer.c:1148 [inline] brelse include/linux/buffer_head.h:325 [inline] __invalidate_bh_lrus fs/buffer.c:1394 [inline] invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 smp_call_function_many_cond+0xa50/0xeb0 kernel/smp.c:960 on_each_cpu_cond_mask+0x5c/0xc4 kernel/smp.c:1135 on_each_cpu_cond include/linux/smp.h:105 [inline] invalidate_bh_lrus+0x34/0x40 fs/buffer.c:1426 kill_bdev block/bdev.c:76 [inline] blkdev_flush_mapping+0x168/0x31c block/bdev.c:659 blkdev_put_whole block/bdev.c:690 [inline] blkdev_put+0x490/0x6ac block/bdev.c:957 blkdev_close+0x74/0xb0 block/fops.c:475 __fput+0x1c0/0x7f8 fs/file_table.c:311 ____fput+0x20/0x30 fs/file_table.c:339 task_work_run+0x12c/0x1e0 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x24b4/0x3128 arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 130698 hardirqs last enabled at (130697): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (130698): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (126922): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (126922): [] handle_softirqs+0xa4c/0xbf0 kernel/softirq.c:586 softirqs last disabled at (126907): [] __do_softirq kernel/softirq.c:592 [inline] softirqs last disabled at (126907): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (126907): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (126907): [] __irq_exit_rcu+0x240/0x440 kernel/softirq.c:641 ---[ end trace b25f55a3f6323620 ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 1 PID: 4855 Comm: udevd Tainted: G W 5.15.181-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __brelse fs/buffer.c:1148 [inline] pc : brelse include/linux/buffer_head.h:325 [inline] pc : __invalidate_bh_lrus fs/buffer.c:1394 [inline] pc : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 lr : __brelse fs/buffer.c:1148 [inline] lr : brelse include/linux/buffer_head.h:325 [inline] lr : __invalidate_bh_lrus fs/buffer.c:1394 [inline] lr : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 sp : ffff80001f0877c0 x29: ffff80001f0877c0 x28: ffff80001414d000 x27: 1fffe0003685d254 x26: 0000000000000001 x25: ffff0001b42e9298 x24: 0000000000000001 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000dd08a970 x20: ffff0001b42e92a0 x19: ffff8000113aada0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111a3970 x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : 9ebd7f83c88e7b00 x8 : 9ebd7f83c88e7b00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f0870b8 x4 : ffff80001422f280 x3 : ffff800008503848 x2 : 0000000000000001 x1 : 0000000100000002 x0 : 0000000000000027 Call trace: __brelse fs/buffer.c:1148 [inline] brelse include/linux/buffer_head.h:325 [inline] __invalidate_bh_lrus fs/buffer.c:1394 [inline] invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 smp_call_function_many_cond+0xa50/0xeb0 kernel/smp.c:960 on_each_cpu_cond_mask+0x5c/0xc4 kernel/smp.c:1135 on_each_cpu_cond include/linux/smp.h:105 [inline] invalidate_bh_lrus+0x34/0x40 fs/buffer.c:1426 kill_bdev block/bdev.c:76 [inline] blkdev_flush_mapping+0x168/0x31c block/bdev.c:659 blkdev_put_whole block/bdev.c:690 [inline] blkdev_put+0x490/0x6ac block/bdev.c:957 blkdev_close+0x74/0xb0 block/fops.c:475 __fput+0x1c0/0x7f8 fs/file_table.c:311 ____fput+0x20/0x30 fs/file_table.c:339 task_work_run+0x12c/0x1e0 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x24b4/0x3128 arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 135448 hardirqs last enabled at (135447): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (135448): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (133704): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (133702): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace b25f55a3f6323621 ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 0 PID: 4855 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 0 PID: 4855 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 0 PID: 4855 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 0 PID: 4855 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 0 PID: 4855 Comm: udevd Tainted: G W 5.15.181-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __brelse fs/buffer.c:1148 [inline] pc : brelse include/linux/buffer_head.h:325 [inline] pc : __invalidate_bh_lrus fs/buffer.c:1394 [inline] pc : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 lr : __brelse fs/buffer.c:1148 [inline] lr : brelse include/linux/buffer_head.h:325 [inline] lr : __invalidate_bh_lrus fs/buffer.c:1394 [inline] lr : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 sp : ffff80001f0877c0 x29: ffff80001f0877c0 x28: ffff80001414d000 x27: 1fffe00036859053 x26: 0000000000000001 x25: ffff0001b42c8298 x24: 0000000000000000 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000dbf77ee0 x20: ffff0001b42c8298 x19: ffff8000113aada0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111a3970 x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : 9ebd7f83c88e7b00 x8 : 9ebd7f83c88e7b00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f0870b8 x4 : ffff80001422f280 x3 : ffff800008503848 x2 : 0000000000000001 x1 : 0000000100000002 x0 : 0000000000000027 Call trace: __brelse fs/buffer.c:1148 [inline] brelse include/linux/buffer_head.h:325 [inline] __invalidate_bh_lrus fs/buffer.c:1394 [inline] invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 smp_call_function_many_cond+0xa50/0xeb0 kernel/smp.c:960 on_each_cpu_cond_mask+0x5c/0xc4 kernel/smp.c:1135 on_each_cpu_cond include/linux/smp.h:105 [inline] invalidate_bh_lrus+0x34/0x40 fs/buffer.c:1426 kill_bdev block/bdev.c:76 [inline] blkdev_flush_mapping+0x168/0x31c block/bdev.c:659 blkdev_put_whole block/bdev.c:690 [inline] blkdev_put+0x490/0x6ac block/bdev.c:957 blkdev_close+0x74/0xb0 block/fops.c:475 __fput+0x1c0/0x7f8 fs/file_table.c:311 ____fput+0x20/0x30 fs/file_table.c:339 task_work_run+0x12c/0x1e0 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x24b4/0x3128 arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 155852 hardirqs last enabled at (155851): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (155852): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (154976): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (154974): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace b25f55a3f6323624 ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 1 PID: 4855 Comm: udevd Tainted: G W 5.15.181-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __brelse fs/buffer.c:1148 [inline] pc : brelse include/linux/buffer_head.h:325 [inline] pc : __invalidate_bh_lrus fs/buffer.c:1394 [inline] pc : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 lr : __brelse fs/buffer.c:1148 [inline] lr : brelse include/linux/buffer_head.h:325 [inline] lr : __invalidate_bh_lrus fs/buffer.c:1394 [inline] lr : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 sp : ffff80001f0877c0 x29: ffff80001f0877c0 x28: ffff80001414d000 x27: 1fffe0003685d254 x26: 0000000000000001 x25: ffff0001b42e9298 x24: 0000000000000001 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000dd08ad10 x20: ffff0001b42e92a0 x19: ffff8000113aada0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111a3970 x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : 9ebd7f83c88e7b00 x8 : 9ebd7f83c88e7b00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f0870b8 x4 : ffff80001422f280 x3 : ffff800008503848 x2 : 0000000000000001 x1 : 0000000100000002 x0 : 0000000000000027 Call trace: __brelse fs/buffer.c:1148 [inline] brelse include/linux/buffer_head.h:325 [inline] __invalidate_bh_lrus fs/buffer.c:1394 [inline] invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 smp_call_function_many_cond+0xa50/0xeb0 kernel/smp.c:960 on_each_cpu_cond_mask+0x5c/0xc4 kernel/smp.c:1135 on_each_cpu_cond include/linux/smp.h:105 [inline] invalidate_bh_lrus+0x34/0x40 fs/buffer.c:1426 kill_bdev block/bdev.c:76 [inline] blkdev_flush_mapping+0x168/0x31c block/bdev.c:659 blkdev_put_whole block/bdev.c:690 [inline] blkdev_put+0x490/0x6ac block/bdev.c:957 blkdev_close+0x74/0xb0 block/fops.c:475 __fput+0x1c0/0x7f8 fs/file_table.c:311 ____fput+0x20/0x30 fs/file_table.c:339 task_work_run+0x12c/0x1e0 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x24b4/0x3128 arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 160318 hardirqs last enabled at (160317): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (160318): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (159102): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (159100): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace b25f55a3f6323625 ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 0 PID: 4855 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 0 PID: 4855 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 0 PID: 4855 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 0 PID: 4855 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 0 PID: 4855 Comm: udevd Tainted: G W 5.15.181-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __brelse fs/buffer.c:1148 [inline] pc : brelse include/linux/buffer_head.h:325 [inline] pc : __invalidate_bh_lrus fs/buffer.c:1394 [inline] pc : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 lr : __brelse fs/buffer.c:1148 [inline] lr : brelse include/linux/buffer_head.h:325 [inline] lr : __invalidate_bh_lrus fs/buffer.c:1394 [inline] lr : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 sp : ffff80001f0877c0 x29: ffff80001f0877c0 x28: ffff80001414d000 x27: 1fffe00036859053 x26: 0000000000000001 x25: ffff0001b42c8298 x24: 0000000000000000 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000cf946c28 x20: ffff0001b42c8298 x19: ffff8000113aada0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111a3970 x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : 9ebd7f83c88e7b00 x8 : 9ebd7f83c88e7b00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f0870b8 x4 : ffff80001422f280 x3 : ffff800008503848 x2 : 0000000000000001 x1 : 0000000100000002 x0 : 0000000000000027 Call trace: __brelse fs/buffer.c:1148 [inline] brelse include/linux/buffer_head.h:325 [inline] __invalidate_bh_lrus fs/buffer.c:1394 [inline] invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 smp_call_function_many_cond+0xa50/0xeb0 kernel/smp.c:960 on_each_cpu_cond_mask+0x5c/0xc4 kernel/smp.c:1135 on_each_cpu_cond include/linux/smp.h:105 [inline] invalidate_bh_lrus+0x34/0x40 fs/buffer.c:1426 kill_bdev block/bdev.c:76 [inline] blkdev_flush_mapping+0x168/0x31c block/bdev.c:659 blkdev_put_whole block/bdev.c:690 [inline] blkdev_put+0x490/0x6ac block/bdev.c:957 blkdev_close+0x74/0xb0 block/fops.c:475 __fput+0x1c0/0x7f8 fs/file_table.c:311 ____fput+0x20/0x30 fs/file_table.c:339 task_work_run+0x12c/0x1e0 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x24b4/0x3128 arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 171282 hardirqs last enabled at (171281): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (171282): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (170618): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (170616): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace b25f55a3f6323627 ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 1 PID: 4855 Comm: udevd Tainted: G W 5.15.181-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __brelse fs/buffer.c:1148 [inline] pc : brelse include/linux/buffer_head.h:325 [inline] pc : __invalidate_bh_lrus fs/buffer.c:1394 [inline] pc : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 lr : __brelse fs/buffer.c:1148 [inline] lr : brelse include/linux/buffer_head.h:325 [inline] lr : __invalidate_bh_lrus fs/buffer.c:1394 [inline] lr : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 sp : ffff80001f0877c0 x29: ffff80001f0877c0 x28: ffff80001414d000 x27: 1fffe0003685d253 x26: 0000000000000001 x25: ffff0001b42e9298 x24: 0000000000000000 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000dd087b40 x20: ffff0001b42e9298 x19: ffff8000113aada0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111a3970 x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : 9ebd7f83c88e7b00 x8 : 9ebd7f83c88e7b00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f0870b8 x4 : ffff80001422f280 x3 : ffff800008503848 x2 : 0000000000000001 x1 : 0000000100000002 x0 : 0000000000000027 Call trace: __brelse fs/buffer.c:1148 [inline] brelse include/linux/buffer_head.h:325 [inline] __invalidate_bh_lrus fs/buffer.c:1394 [inline] invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 smp_call_function_many_cond+0xa50/0xeb0 kernel/smp.c:960 on_each_cpu_cond_mask+0x5c/0xc4 kernel/smp.c:1135 on_each_cpu_cond include/linux/smp.h:105 [inline] invalidate_bh_lrus+0x34/0x40 fs/buffer.c:1426 kill_bdev block/bdev.c:76 [inline] blkdev_flush_mapping+0x168/0x31c block/bdev.c:659 blkdev_put_whole block/bdev.c:690 [inline] blkdev_put+0x490/0x6ac block/bdev.c:957 blkdev_close+0x74/0xb0 block/fops.c:475 __fput+0x1c0/0x7f8 fs/file_table.c:311 ____fput+0x20/0x30 fs/file_table.c:339 task_work_run+0x12c/0x1e0 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x24b4/0x3128 arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 192328 hardirqs last enabled at (192327): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (192328): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (192314): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (192312): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace b25f55a3f632362b ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 0 PID: 4855 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 0 PID: 4855 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 0 PID: 4855 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 0 PID: 4855 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 0 PID: 4855 Comm: udevd Tainted: G W 5.15.181-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __brelse fs/buffer.c:1148 [inline] pc : brelse include/linux/buffer_head.h:325 [inline] pc : __invalidate_bh_lrus fs/buffer.c:1394 [inline] pc : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 lr : __brelse fs/buffer.c:1148 [inline] lr : brelse include/linux/buffer_head.h:325 [inline] lr : __invalidate_bh_lrus fs/buffer.c:1394 [inline] lr : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 sp : ffff80001f0877c0 x29: ffff80001f0877c0 x28: ffff80001414d000 x27: 1fffe00036859053 x26: 0000000000000001 x25: ffff0001b42c8298 x24: 0000000000000000 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000c51c9c28 x20: ffff0001b42c8298 x19: ffff8000113aada0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111a3970 x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : 9ebd7f83c88e7b00 x8 : 9ebd7f83c88e7b00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f0870b8 x4 : ffff80001422f280 x3 : ffff800008503848 x2 : 0000000000000001 x1 : 0000000100000002 x0 : 0000000000000027 Call trace: __brelse fs/buffer.c:1148 [inline] brelse include/linux/buffer_head.h:325 [inline] __invalidate_bh_lrus fs/buffer.c:1394 [inline] invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 smp_call_function_many_cond+0xa50/0xeb0 kernel/smp.c:960 on_each_cpu_cond_mask+0x5c/0xc4 kernel/smp.c:1135 on_each_cpu_cond include/linux/smp.h:105 [inline] invalidate_bh_lrus+0x34/0x40 fs/buffer.c:1426 kill_bdev block/bdev.c:76 [inline] blkdev_flush_mapping+0x168/0x31c block/bdev.c:659 blkdev_put_whole block/bdev.c:690 [inline] blkdev_put+0x490/0x6ac block/bdev.c:957 blkdev_close+0x74/0xb0 block/fops.c:475 __fput+0x1c0/0x7f8 fs/file_table.c:311 ____fput+0x20/0x30 fs/file_table.c:339 task_work_run+0x12c/0x1e0 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x24b4/0x3128 arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 198086 hardirqs last enabled at (198085): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (198086): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (196778): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (196776): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace b25f55a3f632362c ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 1 PID: 4855 Comm: udevd Tainted: G W 5.15.181-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __brelse fs/buffer.c:1148 [inline] pc : brelse include/linux/buffer_head.h:325 [inline] pc : __invalidate_bh_lrus fs/buffer.c:1394 [inline] pc : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 lr : __brelse fs/buffer.c:1148 [inline] lr : brelse include/linux/buffer_head.h:325 [inline] lr : __invalidate_bh_lrus fs/buffer.c:1394 [inline] lr : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 sp : ffff80001f0877c0 x29: ffff80001f0877c0 x28: ffff80001414d000 x27: 1fffe0003685d253 x26: 0000000000000001 x25: ffff0001b42e9298 x24: 0000000000000000 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000dd087ee0 x20: ffff0001b42e9298 x19: ffff8000113aada0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111a3970 x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : 9ebd7f83c88e7b00 x8 : 9ebd7f83c88e7b00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f0870b8 x4 : ffff80001422f280 x3 : ffff800008503848 x2 : 0000000000000001 x1 : 0000000100000002 x0 : 0000000000000027 Call trace: __brelse fs/buffer.c:1148 [inline] brelse include/linux/buffer_head.h:325 [inline] __invalidate_bh_lrus fs/buffer.c:1394 [inline] invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 smp_call_function_many_cond+0xa50/0xeb0 kernel/smp.c:960 on_each_cpu_cond_mask+0x5c/0xc4 kernel/smp.c:1135 on_each_cpu_cond include/linux/smp.h:105 [inline] invalidate_bh_lrus+0x34/0x40 fs/buffer.c:1426 kill_bdev block/bdev.c:76 [inline] blkdev_flush_mapping+0x168/0x31c block/bdev.c:659 blkdev_put_whole block/bdev.c:690 [inline] blkdev_put+0x490/0x6ac block/bdev.c:957 blkdev_close+0x74/0xb0 block/fops.c:475 __fput+0x1c0/0x7f8 fs/file_table.c:311 ____fput+0x20/0x30 fs/file_table.c:339 task_work_run+0x12c/0x1e0 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x24b4/0x3128 arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 204906 hardirqs last enabled at (204905): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (204906): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (204232): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (204232): [] handle_softirqs+0xa4c/0xbf0 kernel/softirq.c:586 softirqs last disabled at (204201): [] __do_softirq kernel/softirq.c:592 [inline] softirqs last disabled at (204201): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (204201): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (204201): [] __irq_exit_rcu+0x240/0x440 kernel/softirq.c:641 ---[ end trace b25f55a3f632362e ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 0 PID: 4855 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 0 PID: 4855 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 0 PID: 4855 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 0 PID: 4855 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 0 PID: 4855 Comm: udevd Tainted: G W 5.15.181-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __brelse fs/buffer.c:1148 [inline] pc : brelse include/linux/buffer_head.h:325 [inline] pc : __invalidate_bh_lrus fs/buffer.c:1394 [inline] pc : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 lr : __brelse fs/buffer.c:1148 [inline] lr : brelse include/linux/buffer_head.h:325 [inline] lr : __invalidate_bh_lrus fs/buffer.c:1394 [inline] lr : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 sp : ffff80001f0877c0 x29: ffff80001f0877c0 x28: ffff80001414d000 x27: 1fffe00036859054 x26: 0000000000000001 x25: ffff0001b42c8298 x24: 0000000000000001 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000c51c8c28 x20: ffff0001b42c82a0 x19: ffff8000113aada0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111a3970 x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : 9ebd7f83c88e7b00 x8 : 9ebd7f83c88e7b00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f0870b8 x4 : ffff80001422f280 x3 : ffff800008503848 x2 : 0000000000000001 x1 : 0000000100000002 x0 : 0000000000000027 Call trace: __brelse fs/buffer.c:1148 [inline] brelse include/linux/buffer_head.h:325 [inline] __invalidate_bh_lrus fs/buffer.c:1394 [inline] invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 smp_call_function_many_cond+0xa50/0xeb0 kernel/smp.c:960 on_each_cpu_cond_mask+0x5c/0xc4 kernel/smp.c:1135 on_each_cpu_cond include/linux/smp.h:105 [inline] invalidate_bh_lrus+0x34/0x40 fs/buffer.c:1426 kill_bdev block/bdev.c:76 [inline] blkdev_flush_mapping+0x168/0x31c block/bdev.c:659 blkdev_put_whole block/bdev.c:690 [inline] blkdev_put+0x490/0x6ac block/bdev.c:957 blkdev_close+0x74/0xb0 block/fops.c:475 __fput+0x1c0/0x7f8 fs/file_table.c:311 ____fput+0x20/0x30 fs/file_table.c:339 task_work_run+0x12c/0x1e0 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x24b4/0x3128 arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 218718 hardirqs last enabled at (218717): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (218718): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (218178): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (218176): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace b25f55a3f6323630 ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 1 PID: 4855 Comm: udevd Tainted: G W 5.15.181-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __brelse fs/buffer.c:1148 [inline] pc : brelse include/linux/buffer_head.h:325 [inline] pc : __invalidate_bh_lrus fs/buffer.c:1394 [inline] pc : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 lr : __brelse fs/buffer.c:1148 [inline] lr : brelse include/linux/buffer_head.h:325 [inline] lr : __invalidate_bh_lrus fs/buffer.c:1394 [inline] lr : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 sp : ffff80001f0877c0 x29: ffff80001f0877c0 x28: ffff80001414d000 x27: 1fffe0003685d254 x26: 0000000000000001 x25: ffff0001b42e9298 x24: 0000000000000001 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000dd0836b8 x20: ffff0001b42e92a0 x19: ffff8000113aada0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111a3970 x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : 9ebd7f83c88e7b00 x8 : 9ebd7f83c88e7b00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f0870b8 x4 : ffff80001422f280 x3 : ffff800008503848 x2 : 0000000000000001 x1 : 0000000100000002 x0 : 0000000000000027 Call trace: __brelse fs/buffer.c:1148 [inline] brelse include/linux/buffer_head.h:325 [inline] __invalidate_bh_lrus fs/buffer.c:1394 [inline] invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 smp_call_function_many_cond+0xa50/0xeb0 kernel/smp.c:960 on_each_cpu_cond_mask+0x5c/0xc4 kernel/smp.c:1135 on_each_cpu_cond include/linux/smp.h:105 [inline] invalidate_bh_lrus+0x34/0x40 fs/buffer.c:1426 kill_bdev block/bdev.c:76 [inline] blkdev_flush_mapping+0x168/0x31c block/bdev.c:659 blkdev_put_whole block/bdev.c:690 [inline] blkdev_put+0x490/0x6ac block/bdev.c:957 blkdev_close+0x74/0xb0 block/fops.c:475 __fput+0x1c0/0x7f8 fs/file_table.c:311 ____fput+0x20/0x30 fs/file_table.c:339 task_work_run+0x12c/0x1e0 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x24b4/0x3128 arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 240668 hardirqs last enabled at (240667): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (240668): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (239450): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (239448): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace b25f55a3f6323633 ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 1 PID: 4855 Comm: udevd Tainted: G W 5.15.181-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __brelse fs/buffer.c:1148 [inline] pc : brelse include/linux/buffer_head.h:325 [inline] pc : __invalidate_bh_lrus fs/buffer.c:1394 [inline] pc : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 lr : __brelse fs/buffer.c:1148 [inline] lr : brelse include/linux/buffer_head.h:325 [inline] lr : __invalidate_bh_lrus fs/buffer.c:1394 [inline] lr : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 sp : ffff80001f0877c0 x29: ffff80001f0877c0 x28: ffff80001414d000 x27: 1fffe0003685d254 x26: 0000000000000001 x25: ffff0001b42e9298 x24: 0000000000000001 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000dd083a58 x20: ffff0001b42e92a0 x19: ffff8000113aada0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111a3970 x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : 9ebd7f83c88e7b00 x8 : 9ebd7f83c88e7b00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f0870b8 x4 : ffff80001422f280 x3 : ffff800008503848 x2 : 0000000000000001 x1 : 0000000100000002 x0 : 0000000000000027 Call trace: __brelse fs/buffer.c:1148 [inline] brelse include/linux/buffer_head.h:325 [inline] __invalidate_bh_lrus fs/buffer.c:1394 [inline] invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 smp_call_function_many_cond+0xa50/0xeb0 kernel/smp.c:960 on_each_cpu_cond_mask+0x5c/0xc4 kernel/smp.c:1135 on_each_cpu_cond include/linux/smp.h:105 [inline] invalidate_bh_lrus+0x34/0x40 fs/buffer.c:1426 kill_bdev block/bdev.c:76 [inline] blkdev_flush_mapping+0x168/0x31c block/bdev.c:659 blkdev_put_whole block/bdev.c:690 [inline] blkdev_put+0x490/0x6ac block/bdev.c:957 blkdev_close+0x74/0xb0 block/fops.c:475 __fput+0x1c0/0x7f8 fs/file_table.c:311 ____fput+0x20/0x30 fs/file_table.c:339 task_work_run+0x12c/0x1e0 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x24b4/0x3128 arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 248488 hardirqs last enabled at (248487): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (248488): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (247080): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (247078): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace b25f55a3f6323634 ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 1 PID: 4855 Comm: udevd Tainted: G W 5.15.181-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __brelse fs/buffer.c:1148 [inline] pc : brelse include/linux/buffer_head.h:325 [inline] pc : __invalidate_bh_lrus fs/buffer.c:1394 [inline] pc : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 lr : __brelse fs/buffer.c:1148 [inline] lr : brelse include/linux/buffer_head.h:325 [inline] lr : __invalidate_bh_lrus fs/buffer.c:1394 [inline] lr : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 sp : ffff80001f0877c0 x29: ffff80001f0877c0 x28: ffff80001414d000 x27: 1fffe0003685d253 x26: 0000000000000001 x25: ffff0001b42e9298 x24: 0000000000000000 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000dd07f5d0 x20: ffff0001b42e9298 x19: ffff8000113aada0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111a3970 x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : 9ebd7f83c88e7b00 x8 : 9ebd7f83c88e7b00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f0870b8 x4 : ffff80001422f280 x3 : ffff800008503848 x2 : 0000000000000001 x1 : 0000000100000002 x0 : 0000000000000027 Call trace: __brelse fs/buffer.c:1148 [inline] brelse include/linux/buffer_head.h:325 [inline] __invalidate_bh_lrus fs/buffer.c:1394 [inline] invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 smp_call_function_many_cond+0xa50/0xeb0 kernel/smp.c:960 on_each_cpu_cond_mask+0x5c/0xc4 kernel/smp.c:1135 on_each_cpu_cond include/linux/smp.h:105 [inline] invalidate_bh_lrus+0x34/0x40 fs/buffer.c:1426 kill_bdev block/bdev.c:76 [inline] blkdev_flush_mapping+0x168/0x31c block/bdev.c:659 blkdev_put_whole block/bdev.c:690 [inline] blkdev_put+0x490/0x6ac block/bdev.c:957 blkdev_close+0x74/0xb0 block/fops.c:475 __fput+0x1c0/0x7f8 fs/file_table.c:311 ____fput+0x20/0x30 fs/file_table.c:339 task_work_run+0x12c/0x1e0 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x24b4/0x3128 arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 282046 hardirqs last enabled at (282045): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (282046): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (281198): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (281196): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace b25f55a3f632363a ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 1 PID: 4855 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 1 PID: 4855 Comm: udevd Tainted: G W 5.15.181-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __brelse fs/buffer.c:1148 [inline] pc : brelse include/linux/buffer_head.h:325 [inline] pc : __invalidate_bh_lrus fs/buffer.c:1394 [inline] pc : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 lr : __brelse fs/buffer.c:1148 [inline] lr : brelse include/linux/buffer_head.h:325 [inline] lr : __invalidate_bh_lrus fs/buffer.c:1394 [inline] lr : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 sp : ffff80001f0877c0 x29: ffff80001f0877c0 x28: ffff80001414d000 x27: 1fffe0003685d253 x26: 0000000000000001 x25: ffff0001b42e9298 x24: 0000000000000000 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000dd07f970 x20: ffff0001b42e9298 x19: ffff8000113aada0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111a3970 x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : 9ebd7f83c88e7b00 x8 : 9ebd7f83c88e7b00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f0870b8 x4 : ffff80001422f280 x3 : ffff800008503848 x2 : 0000000000000001 x1 : 0000000100000002 x0 : 0000000000000027 Call trace: __brelse fs/buffer.c:1148 [inline] brelse include/linux/buffer_head.h:325 [inline] __invalidate_bh_lrus fs/buffer.c:1394 [inline] invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 smp_call_function_many_cond+0xa50/0xeb0 kernel/smp.c:960 on_each_cpu_cond_mask+0x5c/0xc4 kernel/smp.c:1135 on_each_cpu_cond include/linux/smp.h:105 [inline] invalidate_bh_lrus+0x34/0x40 fs/buffer.c:1426 kill_bdev block/bdev.c:76 [inline] blkdev_flush_mapping+0x168/0x31c block/bdev.c:659 blkdev_put_whole block/bdev.c:690 [inline] blkdev_put+0x490/0x6ac block/bdev.c:957 blkdev_close+0x74/0xb0 block/fops.c:475 __fput+0x1c0/0x7f8 fs/file_table.c:311 ____fput+0x20/0x30 fs/file_table.c:339 task_work_run+0x12c/0x1e0 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x24b4/0x3128 arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 291940 hardirqs last enabled at (291939): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (291940): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (290970): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (290968): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace b25f55a3f632363c ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 0 PID: 4855 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 0 PID: 4855 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 0 PID: 4855 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 0 PID: 4855 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 0 PID: 4855 Comm: udevd Tainted: G W 5.15.181-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __brelse fs/buffer.c:1148 [inline] pc : brelse include/linux/buffer_head.h:325 [inline] pc : __invalidate_bh_lrus fs/buffer.c:1394 [inline] pc : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 lr : __brelse fs/buffer.c:1148 [inline] lr : brelse include/linux/buffer_head.h:325 [inline] lr : __invalidate_bh_lrus fs/buffer.c:1394 [inline] lr : invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 sp : ffff80001f0877c0 x29: ffff80001f0877c0 x28: ffff80001414d000 x27: 1fffe00036859054 x26: 0000000000000001 x25: ffff0001b42c8298 x24: 0000000000000001 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000c05eb970 x20: ffff0001b42c82a0 x19: ffff8000113aada0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111a3970 x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : 9ebd7f83c88e7b00 x8 : 9ebd7f83c88e7b00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f0870b8 x4 : ffff80001422f280 x3 : ffff800008503848 x2 : 0000000000000001 x1 : 0000000100000002 x0 : 0000000000000027 Call trace: __brelse fs/buffer.c:1148 [inline] brelse include/linux/buffer_head.h:325 [inline] __invalidate_bh_lrus fs/buffer.c:1394 [inline] invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 smp_call_function_many_cond+0xa50/0xeb0 kernel/smp.c:960 on_each_cpu_cond_mask+0x5c/0xc4 kernel/smp.c:1135 on_each_cpu_cond include/linux/smp.h:105 [inline] invalidate_bh_lrus+0x34/0x40 fs/buffer.c:1426 kill_bdev block/bdev.c:76 [inline] blkdev_flush_mapping+0x168/0x31c block/bdev.c:659 blkdev_put_whole block/bdev.c:690 [inline] blkdev_put+0x490/0x6ac block/bdev.c:957 blkdev_close+0x74/0xb0 block/fops.c:475 __fput+0x1c0/0x7f8 fs/file_table.c:311 ____fput+0x20/0x30 fs/file_table.c:339 task_work_run+0x12c/0x1e0 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x24b4/0x3128 arch/arm64/kernel/signal.c:949 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline] el0_svc+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 309290 hardirqs last enabled at (309289): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (309290): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (307778): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (307776): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace b25f55a3f632363f ]---