diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index d9e71e31102..43d73b81517 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -233,7 +233,7 @@ int __ptrace_may_access(struct task_struct *task, unsigned int mode)
 	 */
 	int dumpable = 0;
 	/* Don't let security modules deny introspection */
-	if (task == current)
+	if (same_thread_group(task, current))
 		return 0;
 	rcu_read_lock();
 	tcred = __task_cred(task);