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-rw-r--r--kernel/futex.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/kernel/futex.c b/kernel/futex.c
index 8cc3ee1..e18cfbd 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -1256,8 +1256,15 @@ retry_private:
if (!match_futex(&this->key, &key1))
continue;
- WARN_ON(!requeue_pi && this->rt_waiter);
- WARN_ON(requeue_pi && !this->rt_waiter);
+ /*
+ * FUTEX_WAIT_REQEUE_PI and FUTEX_CMP_REQUEUE_PI should always
+ * be paired with each other and no other futex ops.
+ */
+ if ((requeue_pi && !this->rt_waiter) ||
+ (!requeue_pi && this->rt_waiter)) {
+ ret = -EINVAL;
+ break;
+ }
/*
* Wake nr_wake waiters. For requeue_pi, if we acquired the
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