loop0: detected capacity change from 0 to 64
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5340 at fs/inode.c:474 inc_nlink+0x122/0x150 fs/inode.c:474
Modules linked in:
CPU: 0 UID: 0 PID: 5340 Comm: syz.0.0 Not tainted 6.16.0-rc7-syzkaller-00120-g5f33ebd2018c #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:inc_nlink+0x122/0x150 fs/inode.c:474
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 27 e8 ff e9 3f ff ff ff e8 9f a6 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:ffffc9000d69f580 EFLAGS: 00010293
RAX: ffffffff823b8a71 RBX: ffff888044d5d5a8 RCX: ffff888032f48000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff8fa1fbf7 R09: 1ffffffff1f43f7e
R10: dffffc0000000000 R11: fffffbfff1f43f7f R12: dffffc0000000000
R13: 1ffff110089abab5 R14: ffff888044d5d560 R15: ffff888044d5d630
FS:  00007f6fc233b6c0(0000) GS:ffff88808d218000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6fbd9f4fc8 CR3: 000000003691a000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 inode_inc_link_count include/linux/fs.h:2628 [inline]
 minix_mkdir+0x44/0x120 fs/minix/namei.c:117
 vfs_mkdir+0x306/0x510 fs/namei.c:4375
 ovl_do_mkdir fs/overlayfs/overlayfs.h:251 [inline]
 ovl_workdir_create+0x448/0x7f0 fs/overlayfs/super.c:330
 ovl_make_workdir fs/overlayfs/super.c:669 [inline]
 ovl_get_workdir+0x32c/0x1730 fs/overlayfs/super.c:827
 ovl_fill_super+0x1386/0x35d0 fs/overlayfs/super.c:1406
 vfs_get_super fs/super.c:1325 [inline]
 get_tree_nodev+0xb8/0x150 fs/super.c:1344
 vfs_get_tree+0x92/0x2b0 fs/super.c:1804
 do_new_mount+0x24a/0xa40 fs/namespace.c:3902
 do_mount fs/namespace.c:4239 [inline]
 __do_sys_mount fs/namespace.c:4450 [inline]
 __se_sys_mount+0x317/0x410 fs/namespace.c:4427
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6fc158e9a9
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:00007f6fc233b038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f6fc17b5fa0 RCX: 00007f6fc158e9a9
RDX: 0000200000000080 RSI: 00002000000000c0 RDI: 0000000000000000
RBP: 00007f6fc1610d69 R08: 0000200000000a00 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f6fc17b5fa0 R15: 00007ffd5bc1da48
 </TASK>