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-rw-r--r--kernel/ptrace.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 1893d909e45c..54482193e1ed 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -269,7 +269,7 @@ static int ptrace_check_attach(struct task_struct *child, bool ignore_state)
 	read_unlock(&tasklist_lock);
 
 	if (!ret && !ignore_state &&
-	    WARN_ON_ONCE(!wait_task_inactive(child, __TASK_TRACED)))
+	    WARN_ON_ONCE(!wait_task_inactive(child, __TASK_TRACED|TASK_FROZEN)))
 		ret = -ESRCH;
 
 	return ret;