F2FS-fs (loop0): Found nat_bits in checkpoint
F2FS-fs (loop0): Mounted with checkpoint version = 48b305e4
------------[ cut here ]------------
WARNING: CPU: 1 PID: 6157 at fs/inode.c:307 drop_nlink+0xe8/0x148 fs/inode.c:307
Modules linked in:
CPU: 1 PID: 6157 Comm: syz.0.358 Not tainted 5.15.178-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : drop_nlink+0xe8/0x148 fs/inode.c:307
lr : drop_nlink+0xe8/0x148 fs/inode.c:307
sp : ffff800022477910
x29: ffff800022477910 x28: fffffc0003644288 x27: dfff800000000000
x26: dfff800000000000 x25: 1fffe0001baea850 x24: ffff0000dd7542f8
x23: 1fffe0001baea859 x22: dfff800000000000 x21: 0000000000000000
x20: ffff0000dd7542c8 x19: ffff0000dd754280 x18: 0000000000000000
x17: 0000000000000002 x16: ffff8000082ec940 x15: 000000000000a000
x14: 1ffff0000296e06c x13: dfff800000000000 x12: 0000000000080000
x11: 000000000000a851 x10: ffff8000214fb000 x9 : 000000000000a852
x8 : ffff8000089e9d6c x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff800008046154
x2 : 0000000000000006 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 drop_nlink+0xe8/0x148 fs/inode.c:307
 f2fs_i_links_write fs/f2fs/f2fs.h:2884 [inline]
 f2fs_drop_nlink+0x10c/0x314 fs/f2fs/dir.c:888
 f2fs_delete_entry+0x9e4/0xd6c fs/f2fs/dir.c:955
 f2fs_unlink+0x2fc/0x93c fs/f2fs/namei.c:567
 vfs_unlink+0x2f0/0x508 fs/namei.c:4280
 do_unlinkat+0x4cc/0x830 fs/namei.c:4348
 __do_sys_unlinkat fs/namei.c:4391 [inline]
 __se_sys_unlinkat fs/namei.c:4384 [inline]
 __arm64_sys_unlinkat+0xcc/0xfc fs/namei.c:4384
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
irq event stamp: 311172
hardirqs last  enabled at (311171): [<ffff8000083c6e40>] seqcount_lockdep_reader_access+0x208/0x2cc include/linux/seqlock.h:105
hardirqs last disabled at (311172): [<ffff800011b49ab0>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396
softirqs last  enabled at (311096): [<ffff8000080309b8>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31
softirqs last disabled at (311094): [<ffff800008030984>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18
---[ end trace d3c43ae57529d2ee ]---