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flvdec: allocate large enough buffer so get_bits() doesnt overread

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Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-04-16 12:01:55 +02:00
parent fa1b2c8e18
commit c4ce870967
1 changed files with 1 additions and 1 deletions
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2
libavformat/flvdec.c
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@ -112,7 +112,7 @@ static int flv_set_video_codec(AVFormatContext *s, AVStream *vstream, int flv_co
vcodec->codec_id = CODEC_ID_VP6A;
if(vcodec->extradata_size != 1) {
vcodec->extradata_size = 1;
vcodec->extradata = av_malloc(1);
vcodec->extradata = av_malloc(1 + FF_INPUT_BUFFER_PADDING_SIZE);
}
vcodec->extradata[0] = avio_r8(s->pb);
return 1; // 1 byte body size adjustment for flv_read_packet()