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:653! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 6582 Comm: syz-executor Not tainted 6.16.0-syzkaller-04405-g4b290aae788e #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:generic_shutdown_super+0x2bb/0x2c0 fs/super.c:651 Code: e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 de 73 ef ff 49 8b 16 48 81 c3 70 06 00 00 48 c7 c7 40 04 39 8b 48 89 de e8 95 fb f5 fe <0f> 0b 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 RSP: 0018:ffffc900039bfba0 EFLAGS: 00010246 RAX: 000000000000002f RBX: ffff88807c9a6670 RCX: 12ee54c7a113bf00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffff1100f934cf1 R08: ffffc900039bf8c7 R09: 1ffff92000737f18 R10: dffffc0000000000 R11: fffff52000737f19 R12: 0000000000000000 R13: dffffc0000000000 R14: ffffffff8e071a00 R15: ffff88807c9a6788 FS: 0000000000000000(0000) GS:ffff888126784000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7743dc0e9c CR3: 000000007e1e6000 CR4: 00000000003526f0 Call Trace: kill_block_super+0x44/0x90 fs/super.c:1766 deactivate_locked_super+0xbc/0x110 fs/super.c:474 cleanup_mnt+0x425/0x4c0 fs/namespace.c:1378 task_work_run+0x1d4/0x260 kernel/task_work.c:227 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x6b5/0x22e0 kernel/exit.c:964 do_group_exit+0x21c/0x2d0 kernel/exit.c:1105 __do_sys_exit_group kernel/exit.c:1116 [inline] __se_sys_exit_group kernel/exit.c:1114 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1114 x64_sys_call+0x21f7/0x2200 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x8a/0x300 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7fb64cd8e9a9 Code: Unable to access opcode bytes at 0x7fb64cd8e97f. RSP: 002b:00007ffc5e58dfe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007fb64ce10b7a RCX: 00007fb64cd8e9a9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 0000000000000028 R08: 00007ffc5e58bd86 R09: 00007ffc5e58f2a0 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5e58f2a0 R13: 00007fb64ce10b55 R14: 0000000000025bbf R15: 00007ffc5e590370 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:generic_shutdown_super+0x2bb/0x2c0 fs/super.c:651 Code: e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 de 73 ef ff 49 8b 16 48 81 c3 70 06 00 00 48 c7 c7 40 04 39 8b 48 89 de e8 95 fb f5 fe <0f> 0b 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 RSP: 0018:ffffc900039bfba0 EFLAGS: 00010246 RAX: 000000000000002f RBX: ffff88807c9a6670 RCX: 12ee54c7a113bf00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffff1100f934cf1 R08: ffffc900039bf8c7 R09: 1ffff92000737f18 R10: dffffc0000000000 R11: fffff52000737f19 R12: 0000000000000000 R13: dffffc0000000000 R14: ffffffff8e071a00 R15: ffff88807c9a6788 FS: 0000000000000000(0000) GS:ffff888126784000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7743dc0e9c CR3: 000000007e1e6000 CR4: 00000000003526f0