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| author | Martin Storsjö <martin@martin.st> | 2012-09-11 14:41:42 +0300 |
|---|---|---|
| committer | Martin Storsjö <martin@martin.st> | 2012-09-12 12:10:45 +0300 |
| commit | 1743938df10dd888484f964d5af8fd3957d26809 (patch) | |
| tree | 7222cf564d73d294f315088aa4f769f9d1f6c69b /libavformat/rtpdec_jpeg.c | |
| parent | 1de9317bd08d71b6b988a8a64de18f4c2f98e031 (diff) | |
| download | ffmpeg-1743938df10dd888484f964d5af8fd3957d26809.tar.gz | |
rtpdec_jpeg: Disallow using the reserved q values
Signed-off-by: Martin Storsjö <martin@martin.st>
Diffstat (limited to 'libavformat/rtpdec_jpeg.c')
| -rw-r--r-- | libavformat/rtpdec_jpeg.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavformat/rtpdec_jpeg.c b/libavformat/rtpdec_jpeg.c index 3f47e71bd3..3f53887798 100644 --- a/libavformat/rtpdec_jpeg.c +++ b/libavformat/rtpdec_jpeg.c @@ -304,6 +304,10 @@ static int jpeg_parse_packet(AVFormatContext *ctx, PayloadContext *jpeg, qtable_len = jpeg->qtables_len[q - 128]; } } else { /* q <= 127 */ + if (q == 0 || q > 99) { + av_log(ctx, AV_LOG_ERROR, "Reserved q value %d\n", q); + return AVERROR_INVALIDDATA; + } create_default_qtables(new_qtables, q); qtables = new_qtables; qtable_len = sizeof(new_qtables); |