From: Tilghman Lesher <tilghman@meg.abyt.es>
Date: Fri, 7 Apr 2006 22:07:38 +0000 (+0000)
Subject: Bug 6913 - fix for possible buffer overflow
X-Git-Tag: 1.2.7~15
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=48d13f84a5727f6578565d1872987c36ec647e68;p=thirdparty%2Fasterisk.git

Bug 6913 - fix for possible buffer overflow


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.2@18436 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---

diff --git a/formats/format_jpeg.c b/formats/format_jpeg.c
index d71aeec801..96fed0deab 100644
--- a/formats/format_jpeg.c
+++ b/formats/format_jpeg.c
@@ -55,7 +55,7 @@ static struct ast_frame *jpeg_read_image(int fd, int len)
 	struct ast_frame fr;
 	int res;
 	char buf[65536];
-	if (len > sizeof(buf)) {
+	if (len > sizeof(buf) || len < 0) {
 		ast_log(LOG_WARNING, "JPEG image too large to read\n");
 		return NULL;
 	}