F2FS-fs (loop2): Found nat_bits in checkpoint
F2FS-fs (loop2): Cannot turn on journaled quota: error -2
F2FS-fs (loop2): Cannot turn on journaled quota: error -2
F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
================================================
WARNING: lock held when returning to user space!
4.14.300-syzkaller #0 Not tainted
------------------------------------------------
syz-executor.2/10217 is leaving the kernel with locks still held!
1 lock held by syz-executor.2/10217:
 #0:  (sb_writers#14){.+.+}, at: [<ffffffff818e1d3d>] sb_start_write include/linux/fs.h:1551 [inline]
 #0:  (sb_writers#14){.+.+}, at: [<ffffffff818e1d3d>] mnt_want_write_file+0xfd/0x3b0 fs/namespace.c:497
------------[ cut here ]------------
WARNING: CPU: 0 PID: 8062 at fs/namespace.c:1178 cleanup_mnt+0x222/0x2c0 fs/namespace.c:1178
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 8062 Comm: syz-executor.2 Not tainted 4.14.300-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x281 lib/dump_stack.c:58
 panic+0x1f9/0x42d kernel/panic.c:183
 __warn.cold+0x20/0x44 kernel/panic.c:547
 report_bug+0x208/0x250 lib/bug.c:183
 fixup_bug arch/x86/kernel/traps.c:177 [inline]
 fixup_bug arch/x86/kernel/traps.c:172 [inline]
 do_error_trap+0x195/0x2d0 arch/x86/kernel/traps.c:295
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:967
Kernel Offset: disabled
Rebooting in 86400 seconds..