------------[ cut here ]------------
WARNING: CPU: 0 PID: 3613 at fs/inode.c:388 inc_nlink+0x144/0x160 fs/inode.c:388
Modules linked in:
CPU: 0 PID: 3613 Comm: syz-executor233 Not tainted 5.19.0-rc5-syzkaller-00228-ge5524c2a1fc4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
RIP: 0010:inc_nlink+0x144/0x160 fs/inode.c:388
Code: ff 4c 89 e7 e8 fd c3 ea ff e9 42 ff ff ff 4c 89 e7 e8 80 c3 ea ff e9 fc fe ff ff 4c 89 e7 e8 73 c3 ea ff eb d4 e8 ac 0b 9e ff <0f> 0b e9 6e ff ff ff e8 70 c3 ea ff e9 44 ff ff ff e8 66 c3 ea ff
RSP: 0018:ffffc900033bfcc0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff888072a70000 RCX: 0000000000000000
RDX: ffff88807e22d880 RSI: ffffffff81dc5ae4 RDI: 0000000000000007
RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000002 R12: ffff888072a70048
R13: ffff888075a23318 R14: ffff888072a705d8 R15: ffff8880169d0600
FS:  0000555555c553c0(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020001000 CR3: 0000000070729000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 v9fs_vfs_mkdir_dotl+0x478/0x770 fs/9p/vfs_inode_dotl.c:457
 vfs_mkdir+0x1c3/0x3b0 fs/namei.c:3975
 do_mkdirat+0x285/0x300 fs/namei.c:4001
 __do_sys_mkdir fs/namei.c:4021 [inline]
 __se_sys_mkdir fs/namei.c:4019 [inline]
 __x64_sys_mkdir+0xf2/0x140 fs/namei.c:4019
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f6cdd45c819
Code: 28 c3 e8 5a 14 00 00 66 2e 0f 1f 84 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff89bfb8e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 00007fff89bfb8f8 RCX: 00007f6cdd45c819
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200002c0
RBP: 00007fff89bfb8f0 R08: 00007f6cdd41aae0 R09: 00007f6cdd41aae0
R10: 0000000020000340 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>