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| author | Martin Storsjö <martin@martin.st> | 2013-09-28 23:46:04 +0300 |
|---|---|---|
| committer | Luca Barbato <lu_zero@gentoo.org> | 2013-10-04 03:52:09 +0200 |
| commit | 10f384e4f5d0ee692cacaf90d629d8bc2178b092 (patch) | |
| tree | 3b3b51cadae57b9611dc5dffbbb47e48f74343b1 | |
| parent | ad1223d6bcc69e1639951aedcdae40822bf41042 (diff) | |
| download | ffmpeg-10f384e4f5d0ee692cacaf90d629d8bc2178b092.tar.gz | |
bfi: Add some very basic sanity checks for input packet sizes
CC: libav-stable@libav.org
Signed-off-by: Martin Storsjö <martin@martin.st>
(cherry picked from commit 640a2427aafa774b83316b7a8c5c2bdc28bfd269)
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
| -rw-r--r-- | libavformat/bfi.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavformat/bfi.c b/libavformat/bfi.c index 5d7ccb85e6..19060e760f 100644 --- a/libavformat/bfi.c +++ b/libavformat/bfi.c @@ -132,6 +132,10 @@ static int bfi_read_packet(AVFormatContext * s, AVPacket * pkt) video_offset = avio_rl32(pb); audio_size = video_offset - audio_offset; bfi->video_size = chunk_size - video_offset; + if (audio_size < 0 || bfi->video_size < 0) { + av_log(s, AV_LOG_ERROR, "Invalid audio/video offsets or chunk size\n"); + return AVERROR_INVALIDDATA; + } //Tossing an audio packet at the audio decoder. ret = av_get_packet(pb, pkt, audio_size); |