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:652! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 UID: 0 PID: 5822 Comm: syz-executor149 Not tainted 6.14.0-rc4-syzkaller-00015-g2a1944bff549 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:generic_shutdown_super+0x2ca/0x2d0 fs/super.c:650 Code: 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 09 0f ee ff 48 8b 13 48 c7 c7 80 93 38 8c 4c 89 e6 e8 27 a0 ee fe 90 <0f> 0b 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc90003c5fb80 EFLAGS: 00010246 RAX: 000000000000002f RBX: ffffffff8f058660 RCX: 6f20425d46cd7600 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffff1100fb090f0 R08: ffffffff81a1139c R09: 1ffff9200078bf0c R10: dffffc0000000000 R11: fffff5200078bf0d R12: ffff88807d848668 R13: dffffc0000000000 R14: ffffffff8c69ec38 R15: ffff88807d848780 FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9ba5dd7ff8 CR3: 0000000078d62000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kill_block_super+0x44/0x90 fs/super.c:1710 deactivate_locked_super+0xc4/0x130 fs/super.c:473 cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1413 task_work_run+0x24f/0x310 kernel/task_work.c:227 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0xa2a/0x28e0 kernel/exit.c:938 do_group_exit+0x207/0x2c0 kernel/exit.c:1087 __do_sys_exit_group kernel/exit.c:1098 [inline] __se_sys_exit_group kernel/exit.c:1096 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1096 x64_sys_call+0x26a8/0x26b0 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9ba5d8d709 Code: Unable to access opcode bytes at 0x7f9ba5d8d6df. RSP: 002b:00007fffce789858 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f9ba5d8d709 RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 RBP: 00007f9ba5e0e370 R08: ffffffffffffffb8 R09: 0000000000000000 R10: 0000000000000100 R11: 0000000000000246 R12: 00007f9ba5e0e370 R13: 0000000000000000 R14: 00007f9ba5e0f0e0 R15: 00007f9ba5d5b690 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:generic_shutdown_super+0x2ca/0x2d0 fs/super.c:650 Code: 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 09 0f ee ff 48 8b 13 48 c7 c7 80 93 38 8c 4c 89 e6 e8 27 a0 ee fe 90 <0f> 0b 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc90003c5fb80 EFLAGS: 00010246 RAX: 000000000000002f RBX: ffffffff8f058660 RCX: 6f20425d46cd7600 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffff1100fb090f0 R08: ffffffff81a1139c R09: 1ffff9200078bf0c R10: dffffc0000000000 R11: fffff5200078bf0d R12: ffff88807d848668 R13: dffffc0000000000 R14: ffffffff8c69ec38 R15: ffff88807d848780 FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9ba5dd7ff8 CR3: 0000000078d62000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400