------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 0 PID: 4468 Comm: udevd Not tainted 5.15.187-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 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 : ffff80001f2177c0 x29: ffff80001f2177c0 x28: ffff80001417d000 x27: 1fffe0003421845b x26: 0000000000000001 x25: ffff0001a10c22d8 x24: 0000000000000000 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000d0d8e400 x20: ffff0001a10c22d8 x19: ffff8000113daee0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111d162c x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : ebf333abbae06f00 x8 : ebf333abbae06f00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f2170b8 x4 : ffff80001425f400 x3 : ffff8000085051a4 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:478 __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: 71090 hardirqs last enabled at (71089): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (71090): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (70444): [] softirq_handle_end kernel/softirq.c:419 [inline] softirqs last enabled at (70444): [] handle_softirqs+0xa4c/0xbf0 kernel/softirq.c:604 softirqs last disabled at (70407): [] __do_softirq kernel/softirq.c:610 [inline] softirqs last disabled at (70407): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (70407): [] invoke_softirq kernel/softirq.c:457 [inline] softirqs last disabled at (70407): [] __irq_exit_rcu+0x240/0x440 kernel/softirq.c:659 ---[ end trace 285ca2dfdc3e62df ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 0 PID: 4468 Comm: udevd Tainted: G W 5.15.187-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 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 : ffff80001f2177c0 x29: ffff80001f2177c0 x28: ffff80001417d000 x27: 1fffe0003421845c x26: 0000000000000001 x25: ffff0001a10c22d8 x24: 0000000000000001 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000de3d7148 x20: ffff0001a10c22e0 x19: ffff8000113daee0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111d162c x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : ebf333abbae06f00 x8 : ebf333abbae06f00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f2170b8 x4 : ffff80001425f400 x3 : ffff8000085051a4 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:478 __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: 82698 hardirqs last enabled at (82697): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (82698): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (82312): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (82310): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace 285ca2dfdc3e62e1 ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 0 PID: 4468 Comm: udevd Tainted: G W 5.15.187-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 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 : ffff80001f2177c0 x29: ffff80001f2177c0 x28: ffff80001417d000 x27: 1fffe0003421845c x26: 0000000000000001 x25: ffff0001a10c22d8 x24: 0000000000000001 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000de3d3d10 x20: ffff0001a10c22e0 x19: ffff8000113daee0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111d162c x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : ebf333abbae06f00 x8 : ebf333abbae06f00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f2170b8 x4 : ffff80001425f400 x3 : ffff8000085051a4 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:478 __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: 98988 hardirqs last enabled at (98987): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (98988): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (98752): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (98750): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace 285ca2dfdc3e62e3 ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 1 PID: 4468 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 1 PID: 4468 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 1 PID: 4468 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 1 PID: 4468 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 1 PID: 4468 Comm: udevd Tainted: G W 5.15.187-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 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 : ffff80001f2177c0 x29: ffff80001f2177c0 x28: ffff80001417d000 x27: 1fffe0003421c65c x26: 0000000000000001 x25: ffff0001a10e32d8 x24: 0000000000000001 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000e208db40 x20: ffff0001a10e32e0 x19: ffff8000113daee0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111d162c x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : ebf333abbae06f00 x8 : ebf333abbae06f00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f2170b8 x4 : ffff80001425f400 x3 : ffff8000085051a4 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:478 __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: 131504 hardirqs last enabled at (131503): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (131504): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (131242): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (131240): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace 285ca2dfdc3e62e8 ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 1 PID: 4468 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 1 PID: 4468 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 1 PID: 4468 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 1 PID: 4468 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 1 PID: 4468 Comm: udevd Tainted: G W 5.15.187-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 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 : ffff80001f2177c0 x29: ffff80001f2177c0 x28: ffff80001417d000 x27: 1fffe0003421c65b x26: 0000000000000001 x25: ffff0001a10e32d8 x24: 0000000000000000 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000e20ea060 x20: ffff0001a10e32d8 x19: ffff8000113daee0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111d162c x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : ebf333abbae06f00 x8 : ebf333abbae06f00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f2170b8 x4 : ffff80001425f400 x3 : ffff8000085051a4 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:478 __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: 159724 hardirqs last enabled at (159723): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (159724): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (158540): [] softirq_handle_end kernel/softirq.c:419 [inline] softirqs last enabled at (158540): [] handle_softirqs+0xa4c/0xbf0 kernel/softirq.c:604 softirqs last disabled at (158391): [] __do_softirq kernel/softirq.c:610 [inline] softirqs last disabled at (158391): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (158391): [] invoke_softirq kernel/softirq.c:457 [inline] softirqs last disabled at (158391): [] __irq_exit_rcu+0x240/0x440 kernel/softirq.c:659 ---[ end trace 285ca2dfdc3e62ed ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 1 PID: 4468 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 1 PID: 4468 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 1 PID: 4468 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 1 PID: 4468 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 1 PID: 4468 Comm: udevd Tainted: G W 5.15.187-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 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 : ffff80001f2177c0 x29: ffff80001f2177c0 x28: ffff80001417d000 x27: 1fffe0003421c65c x26: 0000000000000001 x25: ffff0001a10e32d8 x24: 0000000000000001 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000e20ea400 x20: ffff0001a10e32e0 x19: ffff8000113daee0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111d162c x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : ebf333abbae06f00 x8 : ebf333abbae06f00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f2170b8 x4 : ffff80001425f400 x3 : ffff8000085051a4 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:478 __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: 163692 hardirqs last enabled at (163691): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (163692): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (161936): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (161934): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace 285ca2dfdc3e62ee ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 0 PID: 4468 Comm: udevd Tainted: G W 5.15.187-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 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 : ffff80001f2177c0 x29: ffff80001f2177c0 x28: ffff80001417d000 x27: 1fffe0003421845b x26: 0000000000000001 x25: ffff0001a10c22d8 x24: 0000000000000000 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000de3cc400 x20: ffff0001a10c22d8 x19: ffff8000113daee0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111d162c x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : ebf333abbae06f00 x8 : ebf333abbae06f00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f2170b8 x4 : ffff80001425f400 x3 : ffff8000085051a4 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:478 __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: 177832 hardirqs last enabled at (177831): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (177832): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (176684): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (176682): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace 285ca2dfdc3e62f1 ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 0 PID: 4468 Comm: udevd Tainted: G W 5.15.187-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 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 : ffff80001f2177c0 x29: ffff80001f2177c0 x28: ffff80001417d000 x27: 1fffe0003421845c x26: 0000000000000001 x25: ffff0001a10c22d8 x24: 0000000000000001 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000de3cc7a0 x20: ffff0001a10c22e0 x19: ffff8000113daee0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111d162c x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : ebf333abbae06f00 x8 : ebf333abbae06f00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f2170b8 x4 : ffff80001425f400 x3 : ffff8000085051a4 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:478 __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: 186788 hardirqs last enabled at (186787): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (186788): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (186542): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (186540): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace 285ca2dfdc3e62f3 ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 1 PID: 4468 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 1 PID: 4468 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 1 PID: 4468 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 1 PID: 4468 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 1 PID: 4468 Comm: udevd Tainted: G W 5.15.187-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 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 : ffff80001f2177c0 x29: ffff80001f2177c0 x28: ffff80001417d000 x27: 1fffe0003421c65b x26: 0000000000000001 x25: ffff0001a10e32d8 x24: 0000000000000000 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000e22fc4e8 x20: ffff0001a10e32d8 x19: ffff8000113daee0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111d162c x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : ebf333abbae06f00 x8 : ebf333abbae06f00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f2170b8 x4 : ffff80001425f400 x3 : ffff8000085051a4 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:478 __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: 193660 hardirqs last enabled at (193659): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (193660): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (192484): [] softirq_handle_end kernel/softirq.c:419 [inline] softirqs last enabled at (192484): [] handle_softirqs+0xa4c/0xbf0 kernel/softirq.c:604 softirqs last disabled at (192463): [] __do_softirq kernel/softirq.c:610 [inline] softirqs last disabled at (192463): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (192463): [] invoke_softirq kernel/softirq.c:457 [inline] softirqs last disabled at (192463): [] __irq_exit_rcu+0x240/0x440 kernel/softirq.c:659 ---[ end trace 285ca2dfdc3e62f4 ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 0 PID: 4468 Comm: udevd Tainted: G W 5.15.187-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 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 : ffff80001f2177c0 x29: ffff80001f2177c0 x28: ffff80001417d000 x27: 1fffe0003421845c x26: 0000000000000001 x25: ffff0001a10c22d8 x24: 0000000000000001 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000de3c86b8 x20: ffff0001a10c22e0 x19: ffff8000113daee0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111d162c x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : ebf333abbae06f00 x8 : ebf333abbae06f00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f2170b8 x4 : ffff80001425f400 x3 : ffff8000085051a4 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:478 __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: 256372 hardirqs last enabled at (256371): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (256372): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (255332): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (255330): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace 285ca2dfdc3e62fd ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 1 PID: 4468 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 1 PID: 4468 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 1 PID: 4468 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 1 PID: 4468 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 1 PID: 4468 Comm: udevd Tainted: G W 5.15.187-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 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 : ffff80001f2177c0 x29: ffff80001f2177c0 x28: ffff80001417d000 x27: 1fffe0003421c65c x26: 0000000000000001 x25: ffff0001a10e32d8 x24: 0000000000000001 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000e22fe230 x20: ffff0001a10e32e0 x19: ffff8000113daee0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111d162c x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : ebf333abbae06f00 x8 : ebf333abbae06f00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f2170b8 x4 : ffff80001425f400 x3 : ffff8000085051a4 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:478 __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: 264958 hardirqs last enabled at (264957): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (264958): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (263416): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (263414): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace 285ca2dfdc3e62ff ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 0 PID: 4468 Comm: udevd Tainted: G W 5.15.187-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 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 : ffff80001f2177c0 x29: ffff80001f2177c0 x28: ffff80001417d000 x27: 1fffe0003421845b x26: 0000000000000001 x25: ffff0001a10c22d8 x24: 0000000000000000 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000de3c45d0 x20: ffff0001a10c22d8 x19: ffff8000113daee0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111d162c x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : ebf333abbae06f00 x8 : ebf333abbae06f00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f2170b8 x4 : ffff80001425f400 x3 : ffff8000085051a4 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:478 __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: 298310 hardirqs last enabled at (298309): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (298310): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (298128): [] softirq_handle_end kernel/softirq.c:419 [inline] softirqs last enabled at (298128): [] handle_softirqs+0xa4c/0xbf0 kernel/softirq.c:604 softirqs last disabled at (298121): [] __do_softirq kernel/softirq.c:610 [inline] softirqs last disabled at (298121): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (298121): [] invoke_softirq kernel/softirq.c:457 [inline] softirqs last disabled at (298121): [] __irq_exit_rcu+0x240/0x440 kernel/softirq.c:659 ---[ end trace 285ca2dfdc3e6304 ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 0 PID: 4468 Comm: udevd Tainted: G W 5.15.187-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 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 : ffff80001f2177c0 x29: ffff80001f2177c0 x28: ffff80001417d000 x27: 1fffe0003421845b x26: 0000000000000001 x25: ffff0001a10c22d8 x24: 0000000000000000 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000de3c4d10 x20: ffff0001a10c22d8 x19: ffff8000113daee0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111d162c x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : ebf333abbae06f00 x8 : ebf333abbae06f00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f2170b8 x4 : ffff80001425f400 x3 : ffff8000085051a4 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:478 __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: 310638 hardirqs last enabled at (310637): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (310638): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (308448): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (308446): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace 285ca2dfdc3e6306 ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 0 PID: 4468 Comm: udevd Tainted: G W 5.15.187-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 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 : ffff80001f2177c0 x29: ffff80001f2177c0 x28: ffff80001417d000 x27: 1fffe0003421845c x26: 0000000000000001 x25: ffff0001a10c22d8 x24: 0000000000000001 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000dce84c28 x20: ffff0001a10c22e0 x19: ffff8000113daee0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111d162c x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : ebf333abbae06f00 x8 : ebf333abbae06f00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f2170b8 x4 : ffff80001425f400 x3 : ffff8000085051a4 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:478 __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: 350730 hardirqs last enabled at (350729): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (350730): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (350084): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (350082): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace 285ca2dfdc3e630d ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 0 PID: 4468 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 0 PID: 4468 Comm: udevd Tainted: G W 5.15.187-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 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 : ffff80001f2177c0 x29: ffff80001f2177c0 x28: ffff80001417d000 x27: 1fffe0003421845b x26: 0000000000000001 x25: ffff0001a10c22d8 x24: 0000000000000000 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000de3c1060 x20: ffff0001a10c22d8 x19: ffff8000113daee0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111d162c x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : ebf333abbae06f00 x8 : ebf333abbae06f00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f2170b8 x4 : ffff80001425f400 x3 : ffff8000085051a4 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:478 __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: 360472 hardirqs last enabled at (360471): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (360472): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (358604): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (358602): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace 285ca2dfdc3e630f ]--- ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 1 PID: 4468 at fs/buffer.c:1148 __brelse fs/buffer.c:1148 [inline] WARNING: CPU: 1 PID: 4468 at fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] WARNING: CPU: 1 PID: 4468 at fs/buffer.c:1148 __invalidate_bh_lrus fs/buffer.c:1394 [inline] WARNING: CPU: 1 PID: 4468 at fs/buffer.c:1148 invalidate_bh_lru+0x128/0x234 fs/buffer.c:1407 Modules linked in: CPU: 1 PID: 4468 Comm: udevd Tainted: G W 5.15.187-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 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 : ffff80001f2177c0 x29: ffff80001f2177c0 x28: ffff80001417d000 x27: 1fffe0003421c65b x26: 0000000000000001 x25: ffff0001a10e32d8 x24: 0000000000000000 x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000e214f7a0 x20: ffff0001a10e32d8 x19: ffff8000113daee0 x18: 0000000000000003 x17: 0000000000000000 x16: ffff8000111d162c x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000002 x10: 0000000000000000 x9 : ebf333abbae06f00 x8 : ebf333abbae06f00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f2170b8 x4 : ffff80001425f400 x3 : ffff8000085051a4 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:478 __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: 387744 hardirqs last enabled at (387743): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (387744): [] smp_call_function_many_cond+0xa44/0xeb0 kernel/smp.c:959 softirqs last enabled at (386194): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (386192): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace 285ca2dfdc3e6314 ]---