------------[ cut here ]------------
WARNING: CPU: 1 PID: 6589 at fs/inode.c:474 inc_nlink+0x122/0x150 fs/inode.c:474
Modules linked in:
CPU: 1 UID: 0 PID: 6589 Comm: syz.1.94 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:inc_nlink+0x122/0x150 fs/inode.c:474
Code: ec 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 63 ec ff e9 3f ff ff ff e8 1f a2 8a 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:ffffc9000caafb08 EFLAGS: 00010287
RAX: ffffffff82340b21 RBX: ffff88805e2abf08 RCX: 0000000000080000
RDX: ffffc9001160f000 RSI: 0000000000002392 RDI: 0000000000002393
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1dac8ef R12: dffffc0000000000
R13: 1ffff1100bc557e1 R14: ffff88805e2abec0 R15: ffff88805e2abfd0
FS:  00007f75ef2246c0(0000) GS:ffff888126ef4000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f00fbe35000 CR3: 000000006237a000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 jfs_mkdir+0x7e0/0xa70 fs/jfs/namei.c:286
 vfs_mkdir+0x306/0x510 fs/namei.c:4453
 do_mkdirat+0x247/0x590 fs/namei.c:4486
 __do_sys_mkdirat fs/namei.c:4503 [inline]
 __se_sys_mkdirat fs/namei.c:4501 [inline]
 __x64_sys_mkdirat+0x87/0xa0 fs/namei.c:4501
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f75f0ffde97
Code: 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 02 01 00 00 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:00007f75ef223e68 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f75ef223ef0 RCX: 00007f75f0ffde97
RDX: 00000000000001ff RSI: 0000200000002200 RDI: 00000000ffffff9c
RBP: 0000200000000f40 R08: 0000200000000000 R09: 0000000000000000
R10: 0000200000000f40 R11: 0000000000000246 R12: 0000200000002200
R13: 00007f75ef223eb0 R14: 0000000000000000 R15: 0000200000002100
 </TASK>