vendor/libevent

1 files changed, 5 insertions, 1 deletions

diff --git a/minheap-internal.h b/minheap-internal.h
index b3b6f1fd497e..b3a0eb1fb589 100644
--- a/minheap-internal.h
+++ b/minheap-internal.h
@@ -70,7 +70,7 @@ struct event* min_heap_top_(min_heap_t* s) { return s->n ? *s->p : 0; }
 
 int min_heap_push_(min_heap_t* s, struct event* e)
 {
-	if (min_heap_reserve_(s, s->n + 1))
+	if (s->n == UINT32_MAX || min_heap_reserve_(s, s->n + 1))
 		return -1;
 	min_heap_shift_up_(s, s->n++, e);
 	return 0;
@@ -138,6 +138,10 @@ int min_heap_reserve_(min_heap_t* s, unsigned n)
 		unsigned a = s->a ? s->a * 2 : 8;
 		if (a < n)
 			a = n;
+#if (SIZE_MAX == UINT32_MAX)
+		if (a > SIZE_MAX / sizeof *p)
+			return -1;
+#endif
 		if (!(p = (struct event**)mm_realloc(s->p, a * sizeof *p)))
 			return -1;
 		s->p = p;