Buffer I/O error on dev loop0, logical block 2, lost sync page write
IO error syncing sysv inode [loop0:00000002]
sysv_free_inode: inode 0,1,2 or nonexistent inode
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5302 at fs/buffer.c:1173 mark_buffer_dirty+0x2c6/0x440 fs/buffer.c:1173
Modules linked in:
CPU: 0 UID: 0 PID: 5302 Comm: syz-executor221 Not tainted 6.13.0-syzkaller-09760-g69e858e0b8b2 #0
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+0x2c6/0x440 fs/buffer.c:1173
Code: 4c 89 f7 e8 fc 1d dc ff 49 8b 3e be 20 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 f7 cf fb ff e8 e2 88 75 ff eb 8b e8 db 88 75 ff 90 <0f> 0b 90 e9 82 fd ff ff e8 cd 88 75 ff 90 0f 0b 90 e9 a9 fd ff ff
RSP: 0018:ffffc9000d2f7b20 EFLAGS: 00010293
RAX: ffffffff8249e3e5 RBX: 1ffff110080c7f01 RCX: ffff888000a1c880
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff8249e163 R09: 1ffff110089d9474
R10: dffffc0000000000 R11: ffffed10089d9475 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff888044eca3a0 R15: ffff88804063f838
FS:  0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056149b136a10 CR3: 0000000011fd4000 CR4: 0000000000352ef0
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:1413
 task_work_run+0x24f/0x310 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0xa2a/0x28e0 kernel/exit.c:938
 do_group_exit+0x207/0x2c0 kernel/exit.c:1087
 __do_sys_exit_group kernel/exit.c:1098 [inline]
 __se_sys_exit_group kernel/exit.c:1096 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1096
 x64_sys_call+0x26a8/0x26b0 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6980096fc9
Code: Unable to access opcode bytes at 0x7f6980096f9f.
RSP: 002b:00007fff80d4a878 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f6980096fc9
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
RBP: 00007f698011d390 R08: ffffffffffffffb8 R09: 0000000000000006
R10: 0000000020000e00 R11: 0000000000000246 R12: 00007f698011d390
R13: 0000000000000000 R14: 00007f698011e100 R15: 00007f69800652a0
 </TASK>