F2FS-fs (loop1): invalid crc value
F2FS-fs (loop1): Found nat_bits in checkpoint
F2FS-fs (loop1): Mounted with checkpoint version = 48b305e4
------------[ cut here ]------------
WARNING: CPU: 0 PID: 6006 at fs/inode.c:389 inc_nlink+0x121/0x130 fs/inode.c:389
Modules linked in:
CPU: 0 PID: 6006 Comm: syz.1.33 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:inc_nlink+0x121/0x130 fs/inode.c:389
Code: 43 ea ff e9 3a ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 4c ff ff ff 48 89 df e8 39 43 ea ff e9 3f ff ff ff e8 5f d5 92 ff <0f> 0b eb 82 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 41 57 41
RSP: 0018:ffffc90004e779f0 EFLAGS: 00010287
RAX: ffffffff81f2bb61 RBX: ffff88805f5d9ae0 RCX: 0000000000080000
RDX: ffffc9000ca19000 RSI: 000000000000cc58 RDI: 000000000000cc59
RBP: 0000000000000000 R08: ffff88805f5db0ef R09: 1ffff1100bebb61d
R10: dffffc0000000000 R11: ffffed100bebb61e R12: dffffc0000000000
R13: 1ffff1100bebb35c R14: ffff88805f5d9a88 R15: 0000000000000000
FS:  00007f9d832b36c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcf9bde7dac CR3: 000000005e023000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 f2fs_i_links_write fs/f2fs/f2fs.h:3114 [inline]
 f2fs_update_parent_metadata+0xc9/0x2a0 fs/f2fs/dir.c:633
 f2fs_add_inline_entry+0x5fb/0x7c0 fs/f2fs/inline.c:692
 f2fs_add_dentry+0xa5/0x1d0 fs/f2fs/dir.c:808
 f2fs_do_add_link+0x202/0x2d0 fs/f2fs/dir.c:851
 f2fs_add_link fs/f2fs/f2fs.h:3618 [inline]
 f2fs_mkdir+0x32c/0x570 fs/f2fs/namei.c:721
 vfs_mkdir+0x296/0x440 fs/namei.c:4121
 do_mkdirat+0x1d4/0x440 fs/namei.c:4144
 __do_sys_mkdirat fs/namei.c:4159 [inline]
 __se_sys_mkdirat fs/namei.c:4157 [inline]
 __x64_sys_mkdirat+0x89/0xa0 fs/namei.c:4157
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f9d8238de97
Code: 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 02 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9d832b2e68 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f9d832b2ef0 RCX: 00007f9d8238de97
RDX: 00000000000001ff RSI: 0000200000000080 RDI: 00000000ffffff9c
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000080
R13: 00007f9d832b2eb0 R14: 0000000000000000 R15: 0000000000000000
 </TASK>