diff --git a/[refs] b/[refs]
index 0ada392b1e4f..d858f2239e19 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: ac111bfaa6b0b3c0edc63c27bd9617d6b08851ff
+refs/heads/master: 28d838cc4dfea980cb6eda0a7409cbf91889ca74
diff --git a/trunk/kernel/ptrace.c b/trunk/kernel/ptrace.c
index 5b8dd98a230e..b88d4186cd7a 100644
--- a/trunk/kernel/ptrace.c
+++ b/trunk/kernel/ptrace.c
@@ -155,7 +155,7 @@ int ptrace_attach(struct task_struct *task)
 	retval = -EPERM;
 	if (task->pid <= 1)
 		goto bad;
-	if (task == current)
+	if (task->tgid == current->tgid)
 		goto bad;
 	/* the same process cannot be attached many times */
 	if (task->ptrace & PT_PTRACED)