From: Jim Meyering <meyering@redhat.com>
Date: Wed, 14 Jul 2010 16:05:50 +0000 (-0500)
Subject: heap_alloc: avoid integer overflow
X-Git-Tag: v8.6~106
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c5e350ec5625d7346c2a088fe478060358200c14;p=thirdparty%2Fcoreutils.git

heap_alloc: avoid integer overflow

* gl/lib/heap.c (heap_alloc): Use xnmalloc rather than xmalloc,
to avoid pathological overflow.
---

diff --git a/gl/lib/heap.c b/gl/lib/heap.c
index 1de3391a59..4672b6d5b9 100644
--- a/gl/lib/heap.c
+++ b/gl/lib/heap.c
@@ -41,7 +41,7 @@ heap_alloc (int (*compare)(const void *, const void *), size_t n_reserve)
   if (n_reserve == 0)
     n_reserve = 1;
 
-  heap->array = xmalloc (n_reserve * sizeof *(heap->array));
+  heap->array = xnmalloc (n_reserve, sizeof *(heap->array));
 
   heap->array[0] = NULL;
   heap->capacity = n_reserve;