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) invalid opcode: 0000 [#1] PREEMPT SMP CPU: 0 PID: 4433 Comm: syz-executor Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:generic_shutdown_super+0xf6/0x100 fs/super.c:695 Code: 83 58 01 00 00 18 60 aa 88 5b 41 5e c3 48 8b 43 28 48 81 c3 48 06 00 00 48 8b 10 48 c7 c7 1b 56 94 83 48 89 de e8 0a ac 87 01 <0f> 0b 0f 1f 84 00 00 00 00 00 66 0f 1f 00 48 8b 87 98 00 00 00 f6 RSP: 0018:ffffc90001fabdd8 EFLAGS: 00010246 RAX: 000000000000002f RBX: ffff88810bb53648 RCX: 3d5fab1a0b7c3400 RDX: ffff88813bc29100 RSI: ffffffff8383e170 RDI: 00000000ffffffff RBP: ffff88810be40680 R08: ffffffff83cd4ad0 R09: 0000000000001fff R10: ffffffff83ca4a70 R11: 0000000000005ffd R12: ffffffff84c491a8 R13: 0000000000000000 R14: ffffffff8312cd20 R15: ffff888118b2d4c0 FS: 0000000000000000(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c00557c000 CR3: 0000000003c55000 CR4: 00000000003506f0 Call Trace: kill_block_super+0x16/0x40 fs/super.c:1660 deactivate_locked_super+0x30/0x110 fs/super.c:481 cleanup_mnt+0x82/0x130 fs/namespace.c:1250 task_work_run+0x7e/0xa0 kernel/task_work.c:239 exit_task_work include/linux/task_work.h:43 [inline] do_exit+0x2d6/0xa00 kernel/exit.c:883 do_group_exit+0x9e/0xa0 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+0x12/0x20 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: 0033:0x7fd23f18eb69 Code: Unable to access opcode bytes at 0x7fd23f18eb3f. RSP: 002b:00007ffc8329f078 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007fd23f211c02 RCX: 00007fd23f18eb69 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 0000000000000028 R08: 00007ffc8329ce16 R09: 00007ffc832a0330 R10: 000000000000000a R11: 0000000000000246 R12: 00007ffc832a0330 R13: 00007fd23f211bdd R14: 000000000000cb72 R15: 00007ffc832a1400 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:generic_shutdown_super+0xf6/0x100 fs/super.c:695 Code: 83 58 01 00 00 18 60 aa 88 5b 41 5e c3 48 8b 43 28 48 81 c3 48 06 00 00 48 8b 10 48 c7 c7 1b 56 94 83 48 89 de e8 0a ac 87 01 <0f> 0b 0f 1f 84 00 00 00 00 00 66 0f 1f 00 48 8b 87 98 00 00 00 f6 RSP: 0018:ffffc90001fabdd8 EFLAGS: 00010246 RAX: 000000000000002f RBX: ffff88810bb53648 RCX: 3d5fab1a0b7c3400 RDX: ffff88813bc29100 RSI: ffffffff8383e170 RDI: 00000000ffffffff RBP: ffff88810be40680 R08: ffffffff83cd4ad0 R09: 0000000000001fff R10: ffffffff83ca4a70 R11: 0000000000005ffd R12: ffffffff84c491a8 R13: 0000000000000000 R14: ffffffff8312cd20 R15: ffff888118b2d4c0 FS: 0000000000000000(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c00557c000 CR3: 000000010bbe7000 CR4: 00000000003506f0