------------[ cut here ]------------
WARNING: fs/inode.c:474 at inc_nlink+0x122/0x150, CPU#0: syz.0.673/11963
Modules linked in:
CPU: 0 UID: 0 PID: 11963 Comm: syz.0.673 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:inc_nlink+0x122/0x150
Code: e7 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 69 d3 e7 ff e9 3f ff ff ff e8 ef 31 82 ff 90 <0f> 0b 90 eb 80 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 50 ff ff ff
RSP: 0018:ffffc900044b7b08 EFLAGS: 00010283
RAX: ffffffff823e2931 RBX: ffff88811278e008 RCX: 0000000000080000
RDX: ffffc900030e9000 RSI: 0000000000000e6c RDI: 0000000000000e6d
RBP: 0000000000000000 R08: ffffffff8fc35777 R09: 1ffffffff1f86aee
R10: dffffc0000000000 R11: fffffbfff1f86aef R12: dffffc0000000000
R13: 1ffff110224f1c01 R14: ffff88811278dfc0 R15: ffff88811278e090
FS:  00007f3351ebf6c0(0000) GS:ffff8880b83fc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005636748d2048 CR3: 0000000120cec000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 jfs_mkdir+0x7e0/0xa70
 vfs_mkdir+0x306/0x510
 do_mkdirat+0x247/0x590
 __x64_sys_mkdir+0x6c/0x80
 do_syscall_64+0xfa/0xfa0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3350f8ec29
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3351ebf038 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 00007f33511d5fa0 RCX: 00007f3350f8ec29
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000000
RBP: 00007f3351011e41 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f33511d6038 R14: 00007f33511d5fa0 R15: 00007ffcaf2a6458
 </TASK>
