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asfdec: fix integer overflow in packet_replic_size check 

Fixes assertion failure

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-01-31 03:36:59 +01:00
parent 2b6a8187a6
commit fe6767f849
1 changed files with 1 additions and 1 deletions
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2
libavformat/asfdec.c
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@ -943,7 +943,7 @@ static int asf_read_frame_header(AVFormatContext *s, AVIOContext *pb){
av_dlog(asf, "key:%d stream:%d seq:%d offset:%d replic_size:%d\n",
asf->packet_key_frame, asf->stream_index, asf->packet_seq,
asf->packet_frag_offset, asf->packet_replic_size);
if (rsize+asf->packet_replic_size > asf->packet_size_left) {
if (rsize+(int64_t)asf->packet_replic_size > asf->packet_size_left) {
av_log(s, AV_LOG_ERROR, "packet_replic_size %d is invalid\n", asf->packet_replic_size);
return AVERROR_INVALIDDATA;
}