------------[ cut here ]------------
WARNING: CPU: 1 PID: 23650 at fs/inode.c:388 inc_nlink+0x11e/0x130
Modules linked in:
CPU: 1 PID: 23650 Comm: syz-executor.3 Not tainted 5.19.0-rc3-syzkaller-00038-gca1fdab7fd27 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:inc_nlink+0x11e/0x130 fs/inode.c:388
Code: ea ff e9 38 ff ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 49 ff ff ff 4c 89 ef e8 5c 61 ea ff e9 3c ff ff ff e8 12 79 97 ff <0f> 0b eb 80 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 41 57 41 56
RSP: 0018:ffffc900049c7c08 EFLAGS: 00010287
RAX: ffffffff81f02efe RBX: 1ffff110067ba8cd RCX: 0000000000040000
RDX: ffffc90003f32000 RSI: 00000000000097b7 RDI: 00000000000097b8
RBP: 0000000000000000 R08: ffffffff81f02e78 R09: ffffed10067ba991
R10: ffffed10067ba991 R11: 1ffff110067ba990 R12: dffffc0000000000
R13: ffff888033dd4668 R14: ffff888033dd4620 R15: 0000000000000000
FS:  00007f620638b700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f021f643718 CR3: 000000007de60000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 v9fs_vfs_mkdir_dotl+0x6bc/0x860 fs/9p/vfs_inode_dotl.c:454
 vfs_mkdir+0x2f6/0x4d0 fs/namei.c:3975
 do_mkdirat+0x267/0x510 fs/namei.c:4001
 __do_sys_mkdir fs/namei.c:4021 [inline]
 __se_sys_mkdir fs/namei.c:4019 [inline]
 __x64_sys_mkdir+0x6a/0x80 fs/namei.c:4019
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f6205289109
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f620638b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 00007f620539bf60 RCX: 00007f6205289109
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200002c0
RBP: 00007f62052e305d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffb9d74a7f R14: 00007f620638b300 R15: 0000000000022000
 </TASK>