ocfs2: Unmounting device (7,1) on (node local) VFS: Busy inodes after unmount of loop1 (ocfs2) ------------[ cut here ]------------ kernel BUG at fs/super.c:697! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 5963 Comm: syz.1.25 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:ffffc90004e4f940 EFLAGS: 00010246 RAX: 000000000000002f RBX: ffff88807e1e0660 RCX: 2066fb021b334e00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffff1100fc3c0f2 R08: ffffc90004e4f647 R09: 1ffff920009c9ec8 R10: dffffc0000000000 R11: fffff520009c9ec9 R12: 0000000000000000 R13: dffffc0000000000 R14: ffffffff8d232180 R15: ffff88807e1e0790 FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c37fea3 CR3: 000000002e792000 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: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 get_signal+0x12fc/0x1400 kernel/signal.c:2902 arch_do_signal_or_restart+0x9c/0x7b0 arch/x86/kernel/signal.c:310 exit_to_user_mode_loop+0x70/0x110 kernel/entry/common.c:174 exit_to_user_mode_prepare+0xf6/0x180 kernel/entry/common.c:210 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline] syscall_exit_to_user_mode+0x1a/0x50 kernel/entry/common.c:302 do_syscall_64+0x61/0xb0 arch/x86/entry/common.c:87 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fb4d7fc2005 Code: Unable to access opcode bytes at 0x7fb4d7fc1fdb. RSP: 002b:00007fb4d8ef0f80 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6 RAX: fffffffffffffdfc RBX: 00007fb4d81e6090 RCX: 00007fb4d7fc2005 RDX: 00007fb4d8ef0fc0 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007fb4d8013f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 00007fb4d81e6128 R14: 00007fb4d81e6090 R15: 00007ffd3d3bcc48 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:ffffc90004e4f940 EFLAGS: 00010246 RAX: 000000000000002f RBX: ffff88807e1e0660 RCX: 2066fb021b334e00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffff1100fc3c0f2 R08: ffffc90004e4f647 R09: 1ffff920009c9ec8 R10: dffffc0000000000 R11: fffff520009c9ec9 R12: 0000000000000000 R13: dffffc0000000000 R14: ffffffff8d232180 R15: ffff88807e1e0790 FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c37fea3 CR3: 000000002e792000 CR4: 00000000003506f0