ocfs2: Unmounting device (7,4) on (node local)
VFS: Busy inodes after unmount of loop4 (ocfs2)
------------[ cut here ]------------
kernel BUG at fs/super.c:505!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 4290 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026
RIP: 0010:generic_shutdown_super+0x334/0x340 fs/super.c:503
Code: e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 15 50 f1 ff 49 8b 16 48 81 c3 a8 06 00 00 48 c7 c7 60 62 b9 8a 48 89 de e8 1c 9c 49 08 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 55 41 57 41 56 53 48 89 fb 49
RSP: 0000:ffffc90004207ba8 EFLAGS: 00010246
RAX: 000000000000002f RBX: ffff8880284d86a8 RCX: fbb83ca3d2348900
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 1ffff1100509b0fb R08: ffffc900042078a7 R09: 1ffff92000840f14
R10: dffffc0000000000 R11: fffff52000840f15 R12: 0000000000000000
R13: dffffc0000000000 R14: ffffffff8e020d40 R15: ffff8880284d87d8
FS:  0000000000000000(0000) GS:ffff8880b8d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30112ff8 CR3: 0000000059342000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 kill_block_super+0x7c/0xe0 fs/super.c:1481
 deactivate_locked_super+0x93/0xf0 fs/super.c:332
 cleanup_mnt+0x471/0x4f0 fs/namespace.c:1191
 task_work_run+0x1d0/0x260 kernel/task_work.c:203
 exit_task_work include/linux/task_work.h:39 [inline]
 do_exit+0x9d5/0x2570 kernel/exit.c:887
 do_group_exit+0x229/0x2e0 kernel/exit.c:1030
 __do_sys_exit_group kernel/exit.c:1041 [inline]
 __se_sys_exit_group kernel/exit.c:1039 [inline]
 __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1039
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f282a5a8fd9
Code: Unable to access opcode bytes at 0x7f282a5a8faf.
RSP: 002b:00007fff798a6e28 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f282a637408 RCX: 00007f282a5a8fd9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000028 R08: 0000000000000000 R09: 00007f282a6373e3
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff798a80e0
R13: 00007f282a6373e3 R14: 00000000000149a8 R15: 00007fff798a91b0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:generic_shutdown_super+0x334/0x340 fs/super.c:503
Code: e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 15 50 f1 ff 49 8b 16 48 81 c3 a8 06 00 00 48 c7 c7 60 62 b9 8a 48 89 de e8 1c 9c 49 08 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 55 41 57 41 56 53 48 89 fb 49
RSP: 0000:ffffc90004207ba8 EFLAGS: 00010246
RAX: 000000000000002f RBX: ffff8880284d86a8 RCX: fbb83ca3d2348900
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 1ffff1100509b0fb R08: ffffc900042078a7 R09: 1ffff92000840f14
R10: dffffc0000000000 R11: fffff52000840f15 R12: 0000000000000000
R13: dffffc0000000000 R14: ffffffff8e020d40 R15: ffff8880284d87d8
FS:  0000000000000000(0000) GS:ffff8880b8d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9dea913ff8 CR3: 000000007e979000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400