From e3123856c79c36507772ada1bcda6cfe36a1e297 Mon Sep 17 00:00:00 2001
From: Laurent Aimar <fenrir@videolan.org>
Date: Sat, 8 Oct 2011 23:40:37 +0200
Subject: [PATCH] vqa: fix double free on corrupted streams
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
---
libavformat/westwood.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/libavformat/westwood.c b/libavformat/westwood.c
index 7712865e36e..6b5fd51141b 100644
--- a/libavformat/westwood.c
+++ b/libavformat/westwood.c
@@ -277,10 +277,8 @@ static int wsvqa_read_header(AVFormatContext *s,
/* there are 0 or more chunks before the FINF chunk; iterate until
* FINF has been skipped and the file will be ready to be demuxed */
do {
- if (avio_read(pb, scratch, VQA_PREAMBLE_SIZE) != VQA_PREAMBLE_SIZE) {
- av_free(st->codec->extradata);
+ if (avio_read(pb, scratch, VQA_PREAMBLE_SIZE) != VQA_PREAMBLE_SIZE)
return AVERROR(EIO);
- }
chunk_tag = AV_RB32(&scratch[0]);
chunk_size = AV_RB32(&scratch[4]);
--
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