Do not check for COPY_PW limits in outside kernels

src/backend.c

@@ -9401,6 +9401,8 @@ int backend_session_begin (hashcat_ctx_t *hashcat_ctx)
     // __local pw_t s_pws[64];
 
     if (user_options->attack_mode == ATTACK_MODE_STRAIGHT)
+    {
+      if (hashconfig->attack_exec == ATTACK_EXEC_INSIDE_KERNEL)
       {
         if (hashconfig->opti_type & OPTI_TYPE_OPTIMIZED_KERNEL)
         {
@@ -9411,6 +9413,7 @@ int backend_session_begin (hashcat_ctx_t *hashcat_ctx)
           device_param->kernel_threads_max = MIN (device_param->kernel_threads_max, 64);
         }
       }
+    }
 
     /**
      * now everything that depends on threads and accel, basically dynamic workload