From: Thomas Egerer <thomas.egerer@secunet.com>
Date: Mon, 10 Feb 2014 16:14:24 +0000 (+0100)
Subject: leak_detective: Assign return value of realloc to buf
X-Git-Tag: 5.1.2rc1~23
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b351acfed67b87f9f3a014a6c90807e08816cca2;p=thirdparty%2Fstrongswan.git

leak_detective: Assign return value of realloc to buf

If realloc return a pointer value different from the value to be
reallocated, a double free can occur in this context.

Signed-off-by: Thomas Egerer <thomas.egerer@secunet.com>
---

diff --git a/src/libstrongswan/utils/leak_detective.c b/src/libstrongswan/utils/leak_detective.c
index 36ed1735cd..ff80bbc89b 100644
--- a/src/libstrongswan/utils/leak_detective.c
+++ b/src/libstrongswan/utils/leak_detective.c
@@ -483,7 +483,7 @@ static void* real_realloc(void *ptr, size_t size)
 static bool register_hooks()
 {
 	void *buf = real_malloc(8);
-	real_realloc(buf, 16);
+	buf = real_realloc(buf, 16);
 	real_free(buf);
 	return TRUE;
 }