------------[ cut here ]------------
WARNING: fs/inode.c:474 at inc_nlink+0x122/0x150 fs/inode.c:474, CPU#0: syz.5.847/9478
Modules linked in:
CPU: 0 UID: 0 PID: 9478 Comm: syz.5.847 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
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: e6 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 e9 95 e6 ff e9 3f ff ff ff e8 df c0 7f 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:ffffc9000bb5fac8 EFLAGS: 00010283
RAX: ffffffff824158c1 RBX: ffff88804b1e4db8 RCX: 0000000000080000
RDX: ffffc90015311000 RSI: 000000000000122b RDI: 000000000000122c
RBP: 0000000000000000 R08: ffffffff8fa2d9f7 R09: 1ffffffff1f45b3e
R10: dffffc0000000000 R11: fffffbfff1f45b3f R12: dffffc0000000000
R13: 1ffff1100963c9b7 R14: ffff88804b1e4d70 R15: ffff88804b1e4e40
FS:  00007f8ea35626c0(0000) GS:ffff888125bf9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2e8a1156c0 CR3: 000000005b0b2000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 jfs_mkdir+0x7e0/0xa70 fs/jfs/namei.c:287
 vfs_mkdir+0x414/0x630 fs/namei.c:5231
 filename_mkdirat+0x27b/0x500 fs/namei.c:5264
 __do_sys_mkdirat fs/namei.c:5285 [inline]
 __se_sys_mkdirat+0x35/0x150 fs/namei.c:5282
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8ea278f749
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:00007f8ea3562038 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f8ea29e5fa0 RCX: 00007f8ea278f749
RDX: 00000000000001ff RSI: 0000200000000000 RDI: ffffffffffffff9c
RBP: 00007f8ea2813f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8ea29e6038 R14: 00007f8ea29e5fa0 R15: 00007ffdce5893a8
 </TASK>