------------[ cut here ]------------
WARNING: CPU: 0 PID: 20804 at fs/inode.c:388 inc_nlink+0x124/0x130
Modules linked in:
CPU: 0 PID: 20804 Comm: syz-executor.1 Not tainted 6.4.0-rc4-syzkaller-00099-g1874a42a7d74 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
RIP: 0010:inc_nlink+0x124/0x130 fs/inode.c:388
Code: e9 ff e9 37 ff ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 49 ff ff ff 4c 89 ef e8 d6 31 e9 ff e9 3c ff ff ff e8 7c 5d 91 ff <0f> 0b eb 80 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 41 57 41 56 53 48
RSP: 0018:ffffc900169875f0 EFLAGS: 00010293
RAX: ffffffff81fa1fa4 RBX: 1ffff11006ebd6b5 RCX: ffff88802c6e8000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff81fa1f1e R09: fffffbfff1cab94e
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff8880375eb5a8 R14: ffff8880375eb560 R15: 0000000000004007
FS:  00007fc474471700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcf0f1bb000 CR3: 000000007caa9000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 inode_inc_link_count include/linux/fs.h:2174 [inline]
 minix_mkdir+0x48/0x120 fs/minix/namei.c:117
 vfs_mkdir+0x29d/0x450 fs/namei.c:4115
 ovl_do_mkdir fs/overlayfs/overlayfs.h:189 [inline]
 ovl_mkdir_real+0xd3/0x2d0 fs/overlayfs/dir.c:146
 ovl_workdir_create+0x451/0x970 fs/overlayfs/super.c:799
 ovl_make_workdir fs/overlayfs/super.c:1286 [inline]
 ovl_get_workdir+0x3bb/0x17c0 fs/overlayfs/super.c:1436
 ovl_fill_super+0x1c64/0x2bd0 fs/overlayfs/super.c:1992
 mount_nodev+0x56/0xe0 fs/super.c:1426
 legacy_get_tree+0xef/0x190 fs/fs_context.c:610
 vfs_get_tree+0x8c/0x270 fs/super.c:1510
 do_new_mount+0x28f/0xae0 fs/namespace.c:3039
 do_mount fs/namespace.c:3382 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3568
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fc47368c169
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc474471168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fc4737abf80 RCX: 00007fc47368c169
RDX: 0000000020000180 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00007fc4736e7ca1 R08: 0000000020000080 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff582f07ef R14: 00007fc474471300 R15: 0000000000022000
 </TASK>