Message ID | 20180601090612.31073-2-apw@canonical.com |
---|---|
State | New |
Headers | show |
Series | [trusty/master-next,1/1] futex: Prevent overflow by strengthen input validation | expand |
diff --git a/kernel/futex.c b/kernel/futex.c index b5270cfcfd8c..a32ff9a10a9f 100644 --- a/kernel/futex.c +++ b/kernel/futex.c @@ -1866,6 +1866,9 @@ static int futex_requeue(u32 __user *uaddr1, unsigned int flags, struct futex_q *this, *next; DEFINE_WAKE_Q(wake_q); + if (nr_wake < 0 || nr_requeue < 0) + return -EINVAL; + if (requeue_pi) { /* * Requeue PI only works on two distinct uaddrs. This