Restore: Add some checks on the rd->cwd variable in restore case

docs/changes.txt

@@ -74,6 +74,7 @@
 - OpenCL Kernel: Move kernel binary buffer from heap to stack memory
 - OpenCL Kernel: Refactored read_kernel_binary to load only a single kernel for a single device
 - Outfile Check: Fixed a memory leak for failed outfile reads
+- Restore: Add some checks on the rd->cwd variable in restore case
 - Rule Engine: Fixed several memory leaks in case loading of rules failed
 - Session Management: Fixed several memory leaks in case profile- or install-folder setup failed
 - OpenCL Header: Updated CL_* errorcode to OpenCL 1.2 standard

src/restore.c

@@ -97,6 +97,20 @@ static int read_restore (hashcat_ctx_t *hashcat_ctx)
 
   fclose (fp);
 
+  if (hc_path_exist (rd->cwd) == false)
+  {
+    event_log_error (hashcat_ctx, "%s: %s", rd->cwd, strerror (errno));
+
+    return -1;
+  }
+
+  if (hc_path_is_directory (rd->cwd) == false)
+  {
+    event_log_error (hashcat_ctx, "%s: %s", rd->cwd, strerror (errno));
+
+    return -1;
+  }
+
   event_log_warning (hashcat_ctx, "Changing current working directory to '%s'", rd->cwd);
   event_log_warning (hashcat_ctx, NULL);