loop0: detected capacity change from 0 to 64
openvswitch: netlink: Missing valid actions attribute.
openvswitch: netlink: Flow actions may not be safe on all matching packets.
Buffer I/O error on dev loop0, logical block 62, lost sync page write
Buffer I/O error on dev loop0, logical block 2, lost async page write
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5336 at fs/buffer.c:1189 mark_buffer_dirty+0x2a9/0x410 fs/buffer.c:1189
Modules linked in:
CPU: 0 UID: 0 PID: 5336 Comm: syz.0.0 Not tainted 6.16.0-rc7-syzkaller-00127-g302f88ff3584 #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:mark_buffer_dirty+0x2a9/0x410 fs/buffer.c:1189
Code: 4c 89 f7 e8 b9 b1 dd ff 49 8b 3e be 20 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 84 33 fc ff e8 ff 30 7a ff eb 8c e8 f8 30 7a ff 90 <0f> 0b 90 e9 95 fd ff ff e8 ea 30 7a ff 90 0f 0b 90 e9 bf fd ff ff
RSP: 0018:ffffc900019a7920 EFLAGS: 00010293
RAX: ffffffff82460018 RBX: ffff888043b9d740 RCX: ffff8880358d8000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 1ffff110024c7401 R08: ffff888043b9d747 R09: 1ffff11008773ae8
R10: dffffc0000000000 R11: ffffed1008773ae9 R12: 0000000000000000
R13: dffffc0000000000 R14: ffffffff829b1400 R15: ffff88801263a788
FS:  0000000000000000(0000) GS:ffff88808d218000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000c0038 CR3: 000000004363d000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 hfs_put_super+0x49/0x60 fs/hfs/super.c:51
 generic_shutdown_super+0x132/0x2c0 fs/super.c:643
 kill_block_super+0x44/0x90 fs/super.c:1755
 deactivate_locked_super+0xbc/0x130 fs/super.c:474
 cleanup_mnt+0x425/0x4c0 fs/namespace.c:1417
 task_work_run+0x1d4/0x260 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x6b5/0x22e0 kernel/exit.c:964
 __seccomp_filter+0x1a17/0x1a40 kernel/seccomp.c:1352
 syscall_trace_enter+0xaa/0x160 kernel/entry/common.c:52
 syscall_enter_from_user_mode_work include/linux/entry-common.h:170 [inline]
 syscall_enter_from_user_mode include/linux/entry-common.h:200 [inline]
 do_syscall_64+0xd3/0x3b0 arch/x86/entry/syscall_64.c:90
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7feb07f8e9a9
Code: Unable to access opcode bytes at 0x7feb07f8e97f.
RSP: 002b:00007feb08e6b0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007feb081b5fa8 RCX: 00007feb07f8e9a9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007feb081b5fac
RBP: 00007feb081b5fa0 R08: 7fffffffffffffff R09: 0000000000000000
R10: 0000000000000009 R11: 0000000000000246 R12: 00007feb081b5fac
R13: 0000000000000000 R14: 00007fff4e0e5f30 R15: 00007fff4e0e6018
 </TASK>