VFS: Lookup of '.' in ocfs2 loop2 would have caused loop
VFS: Lookup of '.' in ocfs2 loop2 would have caused loop
ocfs2: Unmounting device (7,2) on (node local)
VFS: Busy inodes after unmount of loop2 (ocfs2)
------------[ cut here ]------------
kernel BUG at fs/super.c:697!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 11796 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:generic_shutdown_super+0x2ad/0x2b0 fs/super.c:695
Code: e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 4c 75 f0 ff 49 8b 16 48 81 c3 60 06 00 00 48 c7 c7 a0 9f b7 8a 48 89 de e8 e3 a1 6f 08 <0f> 0b 90 66 0f 1f 00 55 41 57 41 56 53 48 89 fb 49 bf 00 00 00 00
RSP: 0018:ffffc900032a7bc0 EFLAGS: 00010246
RAX: 000000000000002f RBX: ffff888067bd2660 RCX: 7e3f29e60f408400
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 1ffff1100cf7a4f2 R08: ffffc900032a77c7 R09: 1ffff92000654ef8
R10: dffffc0000000000 R11: fffff52000654ef9 R12: 0000000000000000
R13: dffffc0000000000 R14: ffffffff8d232180 R15: ffff888067bd2790
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6c87767eb8 CR3: 0000000030801000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 kill_block_super+0x44/0x90 fs/super.c:1660
 deactivate_locked_super+0x97/0x100 fs/super.c:481
 cleanup_mnt+0x429/0x4c0 fs/namespace.c:1259
 task_work_run+0x1ce/0x250 kernel/task_work.c:239
 exit_task_work include/linux/task_work.h:43 [inline]
 do_exit+0x90b/0x23c0 kernel/exit.c:883
 do_group_exit+0x21b/0x2d0 kernel/exit.c:1024
 __do_sys_exit_group kernel/exit.c:1035 [inline]
 __se_sys_exit_group kernel/exit.c:1033 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1033
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f18c478f749
Code: Unable to access opcode bytes at 0x7f18c478f71f.
RSP: 002b:00007fff46c48a38 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f18c4813da2 RCX: 00007f18c478f749
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000028 R08: 00007fff46c467d6 R09: 00007fff46c49cf0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff46c49cf0
R13: 00007f18c4813d7d R14: 000000000007e4d3 R15: 00007fff46c4beb0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:generic_shutdown_super+0x2ad/0x2b0 fs/super.c:695
Code: e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 4c 75 f0 ff 49 8b 16 48 81 c3 60 06 00 00 48 c7 c7 a0 9f b7 8a 48 89 de e8 e3 a1 6f 08 <0f> 0b 90 66 0f 1f 00 55 41 57 41 56 53 48 89 fb 49 bf 00 00 00 00
RSP: 0018:ffffc900032a7bc0 EFLAGS: 00010246
RAX: 000000000000002f RBX: ffff888067bd2660 RCX: 7e3f29e60f408400
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 1ffff1100cf7a4f2 R08: ffffc900032a77c7 R09: 1ffff92000654ef8
R10: dffffc0000000000 R11: fffff52000654ef9 R12: 0000000000000000
R13: dffffc0000000000 R14: ffffffff8d232180 R15: ffff888067bd2790
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd8663fd368 CR3: 000000000cb30000 CR4: 00000000003506f0