F2FS-fs (loop2): invalid crc value
F2FS-fs (loop2): Found nat_bits in checkpoint
F2FS-fs (loop2): Mounted with checkpoint version = 48b305e4
------------[ cut here ]------------
WARNING: CPU: 1 PID: 5398 at fs/inode.c:389 inc_nlink+0x11d/0x130 fs/inode.c:389
Modules linked in:
CPU: 1 PID: 5398 Comm: syz.2.200 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:inc_nlink+0x11d/0x130 fs/inode.c:389
Code: 32 eb 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 ad 32 eb ff e9 3f ff ff ff e8 73 26 9a ff <0f> 0b eb 82 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 41 57 41
RSP: 0018:ffffc900050cfa48 EFLAGS: 00010283
RAX: ffffffff81e84edd RBX: ffff888070653678 RCX: 0000000000080000
RDX: ffffc9000e139000 RSI: 000000000000718e RDI: 000000000000718f
RBP: 0000000000000000 R08: ffff8880543443e7 R09: 1ffff1100a86887c
R10: dffffc0000000000 R11: ffffed100a86887d R12: dffffc0000000000
R13: 1ffff1100e0ca6cf R14: ffff888070653630 R15: 0000000000000000
FS:  00007f1a2ced06c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f80d6a16038 CR3: 000000005495d000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 f2fs_i_links_write fs/f2fs/f2fs.h:3051 [inline]
 f2fs_update_parent_metadata+0xb5/0x2b0 fs/f2fs/dir.c:666
 f2fs_add_inline_entry+0x604/0x7d0 fs/f2fs/inline.c:675
 f2fs_add_dentry+0xa1/0x1c0 fs/f2fs/dir.c:843
 f2fs_do_add_link+0x1cd/0x2a0 fs/f2fs/dir.c:886
 f2fs_add_link fs/f2fs/f2fs.h:3542 [inline]
 f2fs_mkdir+0x328/0x560 fs/f2fs/namei.c:711
 vfs_mkdir+0x387/0x570 fs/namei.c:4114
 do_mkdirat+0x1d8/0x440 fs/namei.c:4139
 __do_sys_mkdirat fs/namei.c:4154 [inline]
 __se_sys_mkdirat fs/namei.c:4152 [inline]
 __x64_sys_mkdirat+0x85/0x90 fs/namei.c:4152
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f1a2bf9cdd9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1a2ced0028 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f1a2c215fa0 RCX: 00007f1a2bf9cdd9
RDX: 0000000000000198 RSI: 0000200000000040 RDI: ffffffffffffff9c
RBP: 00007f1a2c032d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f1a2c216038 R14: 00007f1a2c215fa0 R15: 00007ffc4bc2b598
 </TASK>