virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-10-30 23:18:11 +02:00
Code Issues Releases Activity

avformat/hnm: check chunk_size == 0

Browse Source 
Fixes potential infinite loop

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer
2013-11-22 23:44:57 +01:00
parent bd8d28e2d2
commit 5c4aa72b75
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
libavformat/hnm.c
View File

@@ -148,7 +148,7 @@ static int hnm_read_packet(AVFormatContext *s, AVPacket *pkt)
chunk_id = avio_rl16(pb);
avio_skip(pb, 2);
if (chunk_size > hnm->superchunk_remaining) {
if (chunk_size > hnm->superchunk_remaining || !chunk_size) {
av_log(s, AV_LOG_ERROR, "invalid chunk size: %u, offset: %u\n",
chunk_size, (int) avio_tell(pb));
avio_skip(pb, hnm->superchunk_remaining - 8);