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avformat/avienc: assert that bits_per_coded_sample is within the supported range (out of array access otherwise) 

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2016-03-05 18:18:07 +01:00
parent 76019f5fed
commit e0f5f9267a
1 changed files with 3 additions and 0 deletions
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3
libavformat/avienc.c
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@ -699,6 +699,9 @@ static int avi_write_packet(AVFormatContext *s, AVPacket *pkt)
if (ret2) {
int pal_size = 1 << enc->bits_per_coded_sample;
int pc_tag, i;
av_assert0(enc->bits_per_coded_sample >= 0 && enc->bits_per_coded_sample <= 8);
if (pb->seekable && avist->pal_offset) {
int64_t cur_offset = avio_tell(pb);
avio_seek(pb, avist->pal_offset, SEEK_SET);