syzbot

F2FS-fs (loop0): invalid crc value
F2FS-fs (loop0): Found nat_bits in checkpoint
F2FS-fs (loop0): Mounted with checkpoint version = 48b305e4
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WARNING: CPU: 1 PID: 4291 at fs/inode.c:332 drop_nlink+0xe4/0x138 fs/inode.c:332
Modules linked in:
CPU: 1 PID: 4291 Comm: syz-executor402 Not tainted 6.1.134-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : drop_nlink+0xe4/0x138 fs/inode.c:332
lr : drop_nlink+0xe4/0x138 fs/inode.c:332
sp : ffff800021167920
x29: ffff800021167920 x28: dfff800000000000 x27: dfff800000000000
x26: ffff0000d4ff7000 x25: 1fffe0001c353354 x24: ffff0000e1a99b18
x23: 1fffe0001c35335d x22: dfff800000000000 x21: 0000000000000000
x20: ffff0000e1a99ae8 x19: ffff0000e1a99aa0 x18: ffff800021167560
x17: ffff800018c59000 x16: ffff800008302888 x15: ffff800018739f80
x14: 0000000050785c76 x13: dfff800000000000 x12: 0000000000000003
x11: 0000000000ff0100 x10: 0000000000000000 x9 : ffff800008aace74
x8 : ffff0000deb41bc0 x7 : 0000000000000000 x6 : 0000000000000000
x5 : ffff800018d95040 x4 : 0000000000000004 x3 : 0000000000000000
x2 : 0000000000000006 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 drop_nlink+0xe4/0x138 fs/inode.c:332
 f2fs_i_links_write fs/f2fs/f2fs.h:3044 [inline]
 f2fs_drop_nlink+0x110/0x34c fs/f2fs/dir.c:922
 f2fs_delete_entry+0xae4/0xefc fs/f2fs/dir.c:989
 f2fs_unlink+0x4b8/0xbdc fs/f2fs/namei.c:562
 vfs_unlink+0x2f0/0x508 fs/namei.c:4322
 do_unlinkat+0x4cc/0x70c fs/namei.c:4390
 __do_sys_unlinkat fs/namei.c:4433 [inline]
 __se_sys_unlinkat fs/namei.c:4426 [inline]
 __arm64_sys_unlinkat+0xcc/0xfc fs/namei.c:4426
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
irq event stamp: 251768
hardirqs last  enabled at (251767): [<ffff8000084041d8>] seqcount_lockdep_reader_access include/linux/seqlock.h:104 [inline]
hardirqs last  enabled at (251767): [<ffff8000084041d8>] ktime_get_coarse_real_ts64+0x114/0x244 kernel/time/timekeeping.c:2261
hardirqs last disabled at (251768): [<ffff80001232684c>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (251760): [<ffff8000081c40ac>] softirq_handle_end kernel/softirq.c:421 [inline]
softirqs last  enabled at (251760): [<ffff8000081c40ac>] handle_softirqs+0xb84/0xd58 kernel/softirq.c:606
softirqs last disabled at (251749): [<ffff800008020174>] __do_softirq+0x14/0x20 kernel/softirq.c:612
---[ end trace 0000000000000000 ]---