[FFmpeg-cvslog] matroska: Fix use after free
Dale Curtis
git at videolan.org
Fri Jan 11 13:01:32 CET 2013
ffmpeg | branch: master | Dale Curtis <dalecurtis at chromium.org> | Thu Jan 10 11:05:29 2013 -0800| [ae3d41636942cbc0236bad21ad06c65f4eb0f096] | committer: Luca Barbato
matroska: Fix use after free
Signed-off-by: Dale Curtis <dalecurtis at chromium.org>
Signed-off-by: Luca Barbato <lu_zero at gentoo.org>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ae3d41636942cbc0236bad21ad06c65f4eb0f096
---
libavformat/matroskadec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c
index bf67253..86ff477 100644
--- a/libavformat/matroskadec.c
+++ b/libavformat/matroskadec.c
@@ -1744,6 +1744,7 @@ static int matroska_deliver_packet(MatroskaDemuxContext *matroska,
*/
static void matroska_clear_queue(MatroskaDemuxContext *matroska)
{
+ matroska->prev_pkt = NULL;
if (matroska->packets) {
int n;
for (n = 0; n < matroska->num_packets; n++) {
@@ -2231,7 +2232,6 @@ static int matroska_read_seek(AVFormatContext *s, int stream_index,
avio_seek(s->pb, st->index_entries[st->nb_index_entries-1].pos, SEEK_SET);
matroska->current_id = 0;
while ((index = av_index_search_timestamp(st, timestamp, flags)) < 0) {
- matroska->prev_pkt = NULL;
matroska_clear_queue(matroska);
if (matroska_parse_cluster(matroska) < 0)
break;
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