------------[ cut here ]------------
WARNING: fs/buffer.c:1183 at mark_buffer_dirty+0x360/0x3e0 fs/buffer.c:1183, CPU#1: syz-executor/19352
Modules linked in:
CPU: 1 UID: 0 PID: 19352 Comm: syz-executor Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:mark_buffer_dirty+0x360/0x3e0 fs/buffer.c:1183
Code: 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 85 00 00 00 48 8b 3b be 40 00 00 00 e8 4b 5a fb ff e9 04 fe ff ff e8 f1 46 6f ff 90 <0f> 0b 90 e9 cc fc ff ff e8 e3 46 6f ff 90 0f 0b 90 e9 ee fc ff ff
RSP: 0018:ffffc900046c7c40 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88804ff0a9f8 RCX: ffffffff824f9e2b
RDX: ffff88802fbebd00 RSI: ffffffff824fa15f RDI: 0000000000000001
RBP: ffff8880a9566400 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: ffff88802fbec830 R12: ffff8880296a2780
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88802867a900
FS:  0000000000000000(0000) GS:ffff8881249f5000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3a8bce CR3: 0000000051267000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 hfs_mdb_close+0x19c/0x1f0 fs/hfs/mdb.c:353
 hfs_put_super+0x46/0x60 fs/hfs/super.c:51
 generic_shutdown_super+0x156/0x390 fs/super.c:643
 kill_block_super+0x3b/0x90 fs/super.c:1722
 deactivate_locked_super+0xc1/0x1a0 fs/super.c:474
 deactivate_super fs/super.c:507 [inline]
 deactivate_super+0xde/0x100 fs/super.c:503
 cleanup_mnt+0x225/0x450 fs/namespace.c:1318
 task_work_run+0x150/0x240 kernel/task_work.c:233
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x87f/0x2bd0 kernel/exit.c:971
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1112
 __do_sys_exit_group kernel/exit.c:1123 [inline]
 __se_sys_exit_group kernel/exit.c:1121 [inline]
 __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1121
 x64_sys_call+0x151c/0x1740 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f445bd8f749
Code: Unable to access opcode bytes at 0x7f445bd8f71f.
RSP: 002b:00007ffc88bf79c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f445be13ddd RCX: 00007f445bd8f749
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000002 R08: 00007ffc88bf5767 R09: 00007ffc88bf8c80
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc88bf8c80
R13: 00007f445be13d7d R14: 0000555575c814a8 R15: 00007ffc88bf9d50
 </TASK>