------------[ cut here ]------------
!(inode_state_read_once(inode) & I_LINKABLE)
WARNING: fs/inode.c:465 at inc_nlink+0x122/0x150 fs/inode.c:465, CPU#1: syz.6.1295/20041
Modules linked in:
CPU: 1 UID: 0 PID: 20041 Comm: syz.6.1295 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
RIP: 0010:inc_nlink+0x122/0x150 fs/inode.c:465
Code: e8 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 19 f6 e8 ff e9 3f ff ff ff e8 ef 58 76 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:ffffc90005a471e8 EFLAGS: 00010293
RAX: ffffffff825185e1 RBX: ffff888061df51c8 RCX: ffff8880326f8000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff21aa378 R12: dffffc0000000000
R13: 1ffff1100c3bea39 R14: ffff888061df5180 R15: ffff888061df5290
FS:  00007f42a06f36c0(0000) GS:ffff888124824000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6e114cf000 CR3: 0000000042798000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 jfs_mkdir+0x857/0xaf0 fs/jfs/namei.c:287
 vfs_mkdir+0x414/0x630 fs/namei.c:5422
 ovl_do_mkdir fs/overlayfs/overlayfs.h:261 [inline]
 ovl_workdir_create+0x4b8/0x970 fs/overlayfs/super.c:364
 ovl_make_workdir fs/overlayfs/super.c:697 [inline]
 ovl_get_workdir+0x339/0x1980 fs/overlayfs/super.c:855
 ovl_fill_super_creds fs/overlayfs/super.c:1468 [inline]
 ovl_fill_super+0x1671/0x4370 fs/overlayfs/super.c:1580
 get_tree_super fs/super.c:1400 [inline]
 get_tree_nodev+0xbb/0x150 fs/super.c:1420
 vfs_get_tree+0x92/0x2a0 fs/super.c:1943
 fc_mount fs/namespace.c:1282 [inline]
 do_new_mount_fc fs/namespace.c:3910 [inline]
 do_new_mount+0x325/0xb00 fs/namespace.c:3986
 do_mount fs/namespace.c:4350 [inline]
 __do_sys_mount fs/namespace.c:4565 [inline]
 __se_sys_mount+0x31d/0x420 fs/namespace.c:4542
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f42a24ff559
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f42a06f3028 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f42a2786450 RCX: 00007f42a24ff559
RDX: 0000200000000d40 RSI: 0000200000000d00 RDI: 0000000000000000
RBP: 00007f42a2596b20 R08: 0000200000000d80 R09: 0000000000000000
R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f42a27864e8 R14: 00007f42a2786450 R15: 00007ffd5f8b83f8
 </TASK>