F2FS-fs (loop0): detect filesystem reference count leak during umount, type: 2, count: -1
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kernel BUG at fs/f2fs/super.c:1639!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 5378 Comm: syz-executor.0 Not tainted 6.5.0-rc7-syzkaller-00018-g89bf6209cad6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
RIP: 0010:f2fs_put_super+0xce1/0xed0 fs/f2fs/super.c:1639
Code: 03 0f b6 14 02 48 89 d8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 27 48 63 0b 89 ea 48 c7 c6 80 67 ba 8a 4c 89 e7 e8 ff 77 ff ff <0f> 0b 4c 89 ee 48 c7 c7 80 97 18 8d e8 ce e1 a0 00 eb a6 48 89 df
RSP: 0018:ffffc9000524fc08 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff888078bf0f60 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff816a0060 RDI: 0000000000000005
RBP: 0000000000000002 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000088 R12: ffff888078bf0000
R13: 0000000000000002 R14: dffffc0000000000 R15: 00000000ffffffff
FS:  0000555555f07480(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020307000 CR3: 0000000027bd4000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 generic_shutdown_super+0x158/0x480 fs/super.c:499
 kill_block_super+0x64/0xb0 fs/super.c:1417
 kill_f2fs_super+0x2b7/0x3d0 fs/f2fs/super.c:4880
 deactivate_locked_super+0x9a/0x170 fs/super.c:330
 deactivate_super+0xde/0x100 fs/super.c:361
 cleanup_mnt+0x222/0x3d0 fs/namespace.c:1254
 task_work_run+0x14d/0x240 kernel/task_work.c:179
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:171 [inline]
 exit_to_user_mode_prepare+0x210/0x240 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
 syscall_exit_to_user_mode+0x1d/0x60 kernel/entry/common.c:297
 do_syscall_64+0x44/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fc84fe7dc47
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:00007ffcfc9a7b68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fc84fe7dc47
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffcfc9a7c20
RBP: 00007ffcfc9a7c20 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffcfc9a8ce0
R13: 00007fc84fed7be9 R14: 000000000003b809 R15: 0000000000000006
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:f2fs_put_super+0xce1/0xed0 fs/f2fs/super.c:1639
Code: 03 0f b6 14 02 48 89 d8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 27 48 63 0b 89 ea 48 c7 c6 80 67 ba 8a 4c 89 e7 e8 ff 77 ff ff <0f> 0b 4c 89 ee 48 c7 c7 80 97 18 8d e8 ce e1 a0 00 eb a6 48 89 df
RSP: 0018:ffffc9000524fc08 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff888078bf0f60 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff816a0060 RDI: 0000000000000005
RBP: 0000000000000002 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000088 R12: ffff888078bf0000
R13: 0000000000000002 R14: dffffc0000000000 R15: 00000000ffffffff
FS:  0000555555f07480(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcf2a178d58 CR3: 0000000027bd4000 CR4: 0000000000350ee0