VFS: Busy inodes after unmount of loop0 (f2fs)
invalid opcode: 0000 [#1] PREEMPT SMP
CPU: 1 PID: 2841 Comm: syz-executor.0 Not tainted 6.6.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:generic_shutdown_super+0x102/0x110 fs/super.c:695
Code: 70 01 00 00 58 38 3b 85 5b 41 5e c3 48 8b 43 28 48 81 c3 60 06 00 00 48 8b 10 48 c7 c7 f1 8b 50 83 48 89 de e8 cf ac 7f 01 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 66 90 66 0f 1f 00 48 8b 87 98
RSP: 0018:ffffc90001f2bde0 EFLAGS: 00010246
RAX: 000000000000002e RBX: ffff88810177c660 RCX: 1a8002bc8ac36500
RDX: ffff88813bd282c0 RSI: ffffffff835373df RDI: 00000000ffffffff
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff83b26e80
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff849a3168
R13: 0000000000000000 R14: ffffffff82f20cf8 R15: ffff888104a95340
FS:  0000555557441480(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f52b74cfe98 CR3: 0000000102f40000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 kill_block_super+0x16/0x40 fs/super.c:1664
 kill_f2fs_super+0xd4/0x100 fs/f2fs/super.c:4884
 deactivate_locked_super+0x30/0x110 fs/super.c:481
 cleanup_mnt+0xe2/0x120 fs/namespace.c:1256
 task_work_run+0x7d/0xa0 kernel/task_work.c:180
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xa9/0xc0 kernel/entry/common.c:171
 exit_to_user_mode_prepare+0x64/0xb0 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x2c/0x1e0 kernel/entry/common.c:296
 do_syscall_64+0x4f/0x90 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fb1da67ded7
Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffdc9e157e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fb1da67ded7
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffdc9e158a0
RBP: 00007ffdc9e158a0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffdc9e16960
R13: 00007fb1da6c73b9 R14: 000000000000c1e6 R15: 000000000000000d
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:generic_shutdown_super+0x102/0x110 fs/super.c:695
Code: 70 01 00 00 58 38 3b 85 5b 41 5e c3 48 8b 43 28 48 81 c3 60 06 00 00 48 8b 10 48 c7 c7 f1 8b 50 83 48 89 de e8 cf ac 7f 01 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 66 90 66 0f 1f 00 48 8b 87 98
RSP: 0018:ffffc90001f2bde0 EFLAGS: 00010246
RAX: 000000000000002e RBX: ffff88810177c660 RCX: 1a8002bc8ac36500
RDX: ffff88813bd282c0 RSI: ffffffff835373df RDI: 00000000ffffffff
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff83b26e80
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff849a3168
R13: 0000000000000000 R14: ffffffff82f20cf8 R15: ffff888104a95340
FS:  0000555557441480(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7be3d95ed8 CR3: 0000000102f40000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400