------------[ cut here ]------------
VFS: brelse: Trying to free free buffer
WARNING: CPU: 1 PID: 3111 at fs/buffer.c:1229 __brelse fs/buffer.c:1229 [inline]
WARNING: CPU: 1 PID: 3111 at fs/buffer.c:1229 brelse include/linux/buffer_head.h:324 [inline]
WARNING: CPU: 1 PID: 3111 at fs/buffer.c:1229 __invalidate_bh_lrus fs/buffer.c:1498 [inline]
WARNING: CPU: 1 PID: 3111 at fs/buffer.c:1229 invalidate_bh_lru+0x34/0xa0 fs/buffer.c:1511
Modules linked in:
CPU: 1 UID: 0 PID: 3111 Comm: syz-executor Not tainted 6.12.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
RIP: 0010:__brelse fs/buffer.c:1229 [inline]
RIP: 0010:brelse include/linux/buffer_head.h:324 [inline]
RIP: 0010:__invalidate_bh_lrus fs/buffer.c:1498 [inline]
RIP: 0010:invalidate_bh_lru+0x34/0xa0 fs/buffer.c:1511
Code: 01 00 00 00 e8 0d 2a d0 ff e8 c8 7e 38 01 89 c0 4c 8b 34 c5 10 29 2e 83 31 db eb 27 90 48 c7 c7 2b ac 12 83 e8 0d da cb ff 90 <0f> 0b 90 90 4b c7 84 3e f0 b1 02 00 00 00 00 00 48 ff c3 48 83 fb
RSP: 0018:ffffc90001b4bce8 EFLAGS: 00010046
RAX: 41547cae9144a800 RBX: 0000000000000000 RCX: 0000000000000004
RDX: 0000000000000002 RSI: ffffffff8315234c RDI: 00000000ffffffff
RBP: ffff888237d30d80 R08: 0000000000000000 R09: ffffffff8352bce0
R10: ffffc90001b4bbc0 R11: ffffc90001b4bb68 R12: 0000000000000202
R13: ffff888237c36d00 R14: ffff888237d00000 R15: 0000000000000000
FS:  000055556d79c500(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbf76d69160 CR3: 0000000104f20000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 csd_do_func kernel/smp.c:134 [inline]
 smp_call_function_many_cond+0x742/0xde0 kernel/smp.c:875
 on_each_cpu_cond_mask+0x3a/0x70 kernel/smp.c:1051
 kill_bdev block/bdev.c:90 [inline]
 blkdev_flush_mapping+0x40/0xf0 block/bdev.c:671
 blkdev_put_whole block/bdev.c:678 [inline]
 bdev_release+0x11e/0x170 block/bdev.c:1103
 blkdev_release+0xc/0x20 block/fops.c:635
 __fput+0x86/0x2a0 fs/file_table.c:450
 task_work_run+0x82/0xb0 kernel/task_work.c:239
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xa4/0x1f0 kernel/entry/common.c:218
 do_syscall_64+0xed/0x1f0 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbf76d87047
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffcf9418148 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fbf76d87047
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffcf9418200
RBP: 00007ffcf9418200 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffcf9419280
R13: 00007fbf76e0180c R14: 00007ffcf94192c0 R15: 0000000000000001
 </TASK>