F2FS-fs (loop4): Found nat_bits in checkpoint
F2FS-fs (loop4): Mounted with checkpoint version = 48b305e4
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5501 at fs/inode.c:307 drop_nlink+0xe8/0x148 fs/inode.c:307
Modules linked in:
CPU: 0 PID: 5501 Comm: syz.4.428 Not tainted 5.15.167-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
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 : ffff800020667910
x29: ffff800020667910 x28: fffffc00038a2a48 x27: dfff800000000000
x26: dfff800000000000 x25: 1fffe0001bd635f0 x24: ffff0000deb1aff8
x23: 1fffe0001bd635f9 x22: dfff800000000000 x21: 0000000000000000
x20: ffff0000deb1afc8 x19: ffff0000deb1af80 x18: ffff800020667520
x17: 0000000000000002 x16: ffff8000082ec9a8 x15: 000000000003091f
x14: ffff80001713e500 x13: dfff800000000000 x12: 0000000000040000
x11: 0000000000007b22 x10: ffff80002310a000 x9 : 0000000000007b23
x8 : ffff8000089eaa0c x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000020 x4 : 0000000000000000 x3 : ffff80000804605c
x2 : 0000000000000006 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 drop_nlink+0xe8/0x148 fs/inode.c:307
 f2fs_i_links_write fs/f2fs/f2fs.h:2883 [inline]
 f2fs_drop_nlink+0x10c/0x314 fs/f2fs/dir.c:887
 f2fs_delete_entry+0x9e0/0xd68 fs/f2fs/dir.c:954
 f2fs_unlink+0x2fc/0x93c fs/f2fs/namei.c:636
 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: 430198
hardirqs last  enabled at (430197): [<ffff8000083c7d64>] seqcount_lockdep_reader_access+0x208/0x2cc include/linux/seqlock.h:105
hardirqs last disabled at (430198): [<ffff800011abda6c>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396
softirqs last  enabled at (428280): [<ffff8000081b6d74>] softirq_handle_end kernel/softirq.c:401 [inline]
softirqs last  enabled at (428280): [<ffff8000081b6d74>] handle_softirqs+0xb88/0xdbc kernel/softirq.c:586
softirqs last disabled at (428263): [<ffff8000081b740c>] __do_softirq kernel/softirq.c:592 [inline]
softirqs last disabled at (428263): [<ffff8000081b740c>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (428263): [<ffff8000081b740c>] invoke_softirq kernel/softirq.c:439 [inline]
softirqs last disabled at (428263): [<ffff8000081b740c>] __irq_exit_rcu+0x268/0x4d8 kernel/softirq.c:641
---[ end trace fad1647bffefe7cb ]---