From: Geoff Thorpe <geoff@openssl.org>
Date: Fri, 2 Apr 2004 06:25:11 +0000 (+0000)
Subject: Avoid undefined results when the parameter is out of range.
X-Git-Tag: OpenSSL_0_9_7e~130^2~1
X-Git-Url: https://git.openssl.org/?p=openssl.git;a=commitdiff_plain;h=2749276b95952d3898bc3b64373ade78a8f84fb7

Avoid undefined results when the parameter is out of range.
---

diff --git a/crypto/stack/stack.c b/crypto/stack/stack.c
index 1d2b47ee67..821b6caca5 100644
--- a/crypto/stack/stack.c
+++ b/crypto/stack/stack.c
@@ -307,7 +307,7 @@ int sk_num(const STACK *st)
 
 char *sk_value(const STACK *st, int i)
 {
-	if(st == NULL) return NULL;
+	if(!st || (i < 0) || (i >= st->num)) return NULL;
 	return st->data[i];
 }