------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 1 PID: 6417 at fs/buffer.c:1229 __brelse fs/buffer.c:1229 [inline] WARNING: CPU: 1 PID: 6417 at fs/buffer.c:1229 brelse include/linux/buffer_head.h:324 [inline] WARNING: CPU: 1 PID: 6417 at fs/buffer.c:1229 __invalidate_bh_lrus fs/buffer.c:1498 [inline] WARNING: CPU: 1 PID: 6417 at fs/buffer.c:1229 invalidate_bh_lru+0x128/0x200 fs/buffer.c:1511 Modules linked in: CPU: 1 UID: 0 PID: 6417 Comm: syz-executor Tainted: G W 6.13.0-rc6-syzkaller-g6251d1776bc5 #0 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __brelse fs/buffer.c:1229 [inline] pc : brelse include/linux/buffer_head.h:324 [inline] pc : __invalidate_bh_lrus fs/buffer.c:1498 [inline] pc : invalidate_bh_lru+0x128/0x200 fs/buffer.c:1511 lr : __brelse fs/buffer.c:1229 [inline] lr : brelse include/linux/buffer_head.h:324 [inline] lr : __invalidate_bh_lrus fs/buffer.c:1498 [inline] lr : invalidate_bh_lru+0x128/0x200 fs/buffer.c:1511 sp : ffff8000a0a07920 x29: ffff8000a0a07920 x28: ffff80008f99d600 x27: 1fffe0001b4f3792 x26: 0000000000000001 x25: 00000000ffffffff x24: ffff0001b3817998 x23: 0000000000000040 x22: dfff800000000000 x21: 0000000000000000 x20: ffff0000dd4e0148 x19: ffff80008b842120 x18: 0000000000000008 x17: 0000000000000000 x16: ffff8000832776d4 x15: 0000000000000001 x14: 1fffe00036700eea x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000004 x10: 0000000000ff0100 x9 : fb14264301b42100 x8 : fb14264301b42100 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff8000a0a07058 x4 : ffff80008fa90460 x3 : ffff80008073e590 x2 : 0000000000000001 x1 : 0000000100000002 x0 : 0000000000000000 Call trace: __brelse fs/buffer.c:1229 [inline] (P) brelse include/linux/buffer_head.h:324 [inline] (P) __invalidate_bh_lrus fs/buffer.c:1498 [inline] (P) invalidate_bh_lru+0x128/0x200 fs/buffer.c:1511 (P) csd_do_func kernel/smp.c:134 [inline] smp_call_function_many_cond+0x169c/0x32a8 kernel/smp.c:875 on_each_cpu_cond_mask+0x5c/0xc4 kernel/smp.c:1051 on_each_cpu_cond include/linux/smp.h:105 [inline] invalidate_bh_lrus+0x34/0x40 fs/buffer.c:1530 kill_bdev block/bdev.c:90 [inline] blkdev_flush_mapping+0xf0/0x258 block/bdev.c:670 blkdev_put_whole block/bdev.c:677 [inline] bdev_release+0x4bc/0x644 block/bdev.c:1102 blkdev_release+0x20/0x34 block/fops.c:635 __fput+0x1bc/0x75c fs/file_table.c:450 ____fput+0x20/0x30 fs/file_table.c:478 task_work_run+0x230/0x2e0 kernel/task_work.c:239 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] do_notify_resume+0x178/0x1f4 arch/arm64/kernel/entry-common.c:151 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline] el0_svc+0xac/0x168 arch/arm64/kernel/entry-common.c:745 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 irq event stamp: 367506 hardirqs last enabled at (367505): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline] hardirqs last enabled at (367505): [] _raw_spin_unlock_irq+0x30/0x80 kernel/locking/spinlock.c:202 hardirqs last disabled at (367506): [] smp_call_function_many_cond+0x15c0/0x32a8 kernel/smp.c:874 softirqs last enabled at (367302): [] softirq_handle_end kernel/softirq.c:407 [inline] softirqs last enabled at (367302): [] handle_softirqs+0xb44/0xd34 kernel/softirq.c:589 softirqs last disabled at (367261): [] __do_softirq+0x14/0x20 kernel/softirq.c:595 ---[ end trace 0000000000000000 ]--- ocfs2: Unmounting device (7,2) on (node local)