------------[ cut here ]------------
WARNING: CPU: 1 PID: 8269 at fs/buffer.c:1173 mark_buffer_dirty+0x2c6/0x440 fs/buffer.c:1173
Modules linked in:
CPU: 1 UID: 0 PID: 8269 Comm: syz-executor Not tainted 6.13.0-rc3-next-20241220-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
RIP: 0010:mark_buffer_dirty+0x2c6/0x440 fs/buffer.c:1173
Code: 4c 89 f7 e8 8c 1b dc ff 49 8b 3e be 20 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 57 cf fb ff e8 f2 9f 75 ff eb 8b e8 eb 9f 75 ff 90 <0f> 0b 90 e9 82 fd ff ff e8 dd 9f 75 ff 90 0f 0b 90 e9 a9 fd ff ff
RSP: 0018:ffffc900042efcc0 EFLAGS: 00010293
RAX: ffffffff82498435 RBX: 1ffff1100fcb5501 RCX: ffff8880257e8000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff824981b3 R09: 1ffff1100abafc00
R10: dffffc0000000000 R11: ffffed100abafc01 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff888055d7e000 R15: ffff88807e5aa838
FS:  0000555568cba500(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c265ff2 CR3: 00000000525ca000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 sysv_put_super+0x93/0x180 fs/sysv/inode.c:76
 generic_shutdown_super+0x139/0x2d0 fs/super.c:642
 kill_block_super+0x44/0x90 fs/super.c:1710
 deactivate_locked_super+0xc4/0x130 fs/super.c:473
 cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1414
 task_work_run+0x24f/0x310 kernel/task_work.c:227
 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+0x13f/0x340 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0c29587057
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:00007fff9b1e2f48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f0c29587057
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff9b1e3000
RBP: 00007fff9b1e3000 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff9b1e4080
R13: 00007f0c29601894 R14: 00007fff9b1e40c0 R15: 000000000000002c
 </TASK>