nuv: check buffer size before checking content.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-04-17 19:32:04 +02:00
parent 096231d497
commit ebf6d1d295

View File

@ -191,7 +191,7 @@ retry:
}
if (c->codec_frameheader) {
int w, h, q, res;
if (buf[0] != 'V' || buf_size < 12) {
if (buf_size < 12 || buf[0] != 'V') {
av_log(avctx, AV_LOG_ERROR, "invalid nuv video frame (wrong codec_tag?)\n");
return AVERROR_INVALIDDATA;
}