F2FS-fs (loop5): Mounted with checkpoint version = 48b305e4
------------[ cut here ]------------
WARNING: CPU: 0 PID: 9131 at fs/inode.c:389 inc_nlink+0x121/0x130 fs/inode.c:389
Modules linked in:
CPU: 0 PID: 9131 Comm: syz.5.712 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:inc_nlink+0x121/0x130 fs/inode.c:389
Code: 0c 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 d9 0c ea ff e9 3f ff ff ff e8 cf cc 91 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:ffffc9001363f9f0 EFLAGS: 00010287
RAX: ffffffff81f55ec1 RBX: ffff888076675a58 RCX: 0000000000080000
RDX: ffffc9000d21c000 RSI: 00000000000020c2 RDI: 00000000000020c3
RBP: 0000000000000000 R08: ffff8880766767af R09: 1ffff1100eccecf5
R10: dffffc0000000000 R11: ffffed100eccecf6 R12: dffffc0000000000
R13: 1ffff1100ecceb4b R14: ffff888076675a00 R15: 0000000000000000
FS:  00007f19f7c986c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555939424a0 CR3: 000000001c7d6000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 f2fs_i_links_write fs/f2fs/f2fs.h:3128 [inline]
 f2fs_update_parent_metadata+0xc9/0x2a0 fs/f2fs/dir.c:633
 f2fs_add_inline_entry+0x608/0x7d0 fs/f2fs/inline.c:692
 f2fs_add_dentry+0xa5/0x1d0 fs/f2fs/dir.c:808
 f2fs_do_add_link+0x263/0x340 fs/f2fs/dir.c:851
 f2fs_add_link fs/f2fs/f2fs.h:3633 [inline]
 f2fs_mkdir+0x32c/0x570 fs/f2fs/namei.c:721
 vfs_mkdir+0x296/0x440 fs/namei.c:4121
 do_mkdirat+0x1dc/0x450 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:46 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f19f6d9ce59
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:00007f19f7c98028 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f19f7015fa0 RCX: 00007f19f6d9ce59
RDX: 00000000000001d7 RSI: 00002000000000c0 RDI: ffffffffffffff9c
RBP: 00007f19f6e32d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f19f7016038 R14: 00007f19f7015fa0 R15: 00007ffd4d510768
 </TASK>