diff --git a/kernel/fork.c b/kernel/fork.c
index 68efe2a0b4fb..a5bc0c6a00fd 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -2726,7 +2726,7 @@ static bool clone3_args_valid(struct kernel_clone_args *kargs)
 	 * - make the CLONE_DETACHED bit reuseable for clone3
 	 * - make the CSIGNAL bits reuseable for clone3
 	 */
-	if (kargs->flags & (CLONE_DETACHED | CSIGNAL))
+	if (kargs->flags & (CLONE_DETACHED | (CSIGNAL & (~CLONE_NEWTIME))))
 		return false;
 
 	if ((kargs->flags & (CLONE_SIGHAND | CLONE_CLEAR_SIGHAND)) ==