------------[ cut here ]------------ WARNING: CPU: 1 PID: 16105 at fs/inode.c:388 inc_nlink+0x124/0x130 Modules linked in: CPU: 1 PID: 16105 Comm: syz-executor.2 Not tainted 6.4.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 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 26 32 e9 ff e9 3c ff ff ff e8 1c 5e 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:ffffc90016a475f0 EFLAGS: 00010293 RAX: ffffffff81fa1e84 RBX: 1ffff1100f0eb40d RCX: ffff888076168000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff81fa1dfe R09: fffffbfff1cab8b6 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff88807875a068 R14: ffff88807875a020 R15: 0000000000004007 FS: 00007f05f4226700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000075399000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: 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: 0033:0x7f05f348c169 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:00007f05f4226168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f05f35abf80 RCX: 00007f05f348c169 RDX: 0000000020000180 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00007f05f34e7ca1 R08: 0000000020000080 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdce40b4af R14: 00007f05f4226300 R15: 0000000000022000