avformat/thp: Check av_get_packet() for failure not only for partial output

Fixes null pointer dereference
Fixes: signal_sigsegv_db2c1f_3108_cov_163322880_pikmin2_opening1_partial.thp

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit f2579dbb4b)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-02-05 03:45:21 +01:00
parent 076b98c9b7
commit 0c125519ec

View File

@ -184,6 +184,8 @@ static int thp_read_packet(AVFormatContext *s,
pkt->stream_index = thp->video_stream_index;
} else {
ret = av_get_packet(pb, pkt, thp->audiosize);
if (ret < 0)
return ret;
if (ret != thp->audiosize) {
av_free_packet(pkt);
return AVERROR(EIO);