------------[ cut here ]------------
!(inode_state_read_once(inode) & I_LINKABLE)
WARNING: fs/inode.c:475 at inc_nlink+0x122/0x150 fs/inode.c:475, CPU#1: syz.2.484/9841
Modules linked in:
CPU: 1 UID: 0 PID: 9841 Comm: syz.2.484 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:inc_nlink+0x122/0x150 fs/inode.c:475
Code: ea 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 a9 dd ea ff e9 3f ff ff ff e8 2f cd 84 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:ffffc900071a7ac8 EFLAGS: 00010283
RAX: ffffffff823f9771 RBX: ffff888060939808 RCX: 0000000000080000
RDX: ffffc900182f4000 RSI: 000000000000186a RDI: 000000000000186b
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1ed4777 R12: dffffc0000000000
R13: 1ffff1100c127301 R14: ffff8880609397c0 R15: ffff8880609398d0
FS:  00007fb8ec9e96c0(0000) GS:ffff88812643c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f04b8a55800 CR3: 000000003b0c2000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 jfs_mkdir+0x877/0xb00 fs/jfs/namei.c:287
 vfs_mkdir+0x40b/0x630 fs/namei.c:5233
 filename_mkdirat+0x289/0x520 fs/namei.c:5266
 __do_sys_mkdirat fs/namei.c:5287 [inline]
 __se_sys_mkdirat+0x35/0x150 fs/namei.c:5284
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb8eebfb607
Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb8ec9e8e58 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007fb8ec9e8ee0 RCX: 00007fb8eebfb607
RDX: 00000000000001ff RSI: 0000200000000280 RDI: 00000000ffffff9c
RBP: 0000200000000200 R08: 0000200000000640 R09: 0000000000000000
R10: 0000200000000200 R11: 0000000000000246 R12: 0000200000000280
R13: 00007fb8ec9e8ea0 R14: 0000000000000000 R15: 0000200000000540
 </TASK>