VFS: Lookup of '.' in ocfs2 loop0 would have caused loop VFS: Lookup of '.' in ocfs2 loop0 would have caused loop ocfs2: Unmounting device (7,0) on (node local) VFS: Busy inodes after unmount of loop0 (ocfs2) ------------[ cut here ]------------ kernel BUG at fs/super.c:697! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 6480 Comm: syz-executor Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 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 2c 86 f0 ff 49 8b 16 48 81 c3 60 06 00 00 48 c7 c7 20 ac b7 8a 48 89 de e8 f3 75 76 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:ffffc90003297bc0 EFLAGS: 00010246 RAX: 000000000000002f RBX: ffff88806586e660 RCX: fca8d073485ac200 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffff1100cb0dcf2 R08: ffffc900032978c7 R09: 1ffff92000652f18 R10: dffffc0000000000 R11: fffff52000652f19 R12: 0000000000000000 R13: dffffc0000000000 R14: ffffffff8d232fc0 R15: ffff88806586e790 FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056543b7f3520 CR3: 000000000cb30000 CR4: 00000000003506f0 Call Trace: 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:1250 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: 0033:0x7f6b7c58e9a9 Code: Unable to access opcode bytes at 0x7f6b7c58e97f. RSP: 002b:00007ffd81d57df8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f6b7c610b7a RCX: 00007f6b7c58e9a9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 0000000000000028 R08: 00007ffd81d55b96 R09: 00007ffd81d590b0 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd81d590b0 R13: 00007f6b7c610b55 R14: 0000000000021df4 R15: 00007ffd81d5a180 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 2c 86 f0 ff 49 8b 16 48 81 c3 60 06 00 00 48 c7 c7 20 ac b7 8a 48 89 de e8 f3 75 76 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:ffffc90003297bc0 EFLAGS: 00010246 RAX: 000000000000002f RBX: ffff88806586e660 RCX: fca8d073485ac200 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffff1100cb0dcf2 R08: ffffc900032978c7 R09: 1ffff92000652f18 R10: dffffc0000000000 R11: fffff52000652f19 R12: 0000000000000000 R13: dffffc0000000000 R14: ffffffff8d232fc0 R15: ffff88806586e790 FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056543b7f3520 CR3: 000000000cb30000 CR4: 00000000003506f0