On 2012-12-13 18:50:47 +0100, Anton Khirnov wrote: > Fixes CVE-2012-2803. > > CC: [email protected] > --- > libavcodec/mpeg12.c | 3 ++- > libavcodec/mpeg12.h | 1 + > 2 files changed, 3 insertions(+), 1 deletion(-) > > diff --git a/libavcodec/mpeg12.c b/libavcodec/mpeg12.c > index df8afec..3366fba 100644 > --- a/libavcodec/mpeg12.c > +++ b/libavcodec/mpeg12.c > @@ -2453,8 +2453,9 @@ static int mpeg_decode_frame(AVCodecContext *avctx, > > s->slice_count = 0; > > - if (avctx->extradata && !avctx->frame_number) { > + if (avctx->extradata && !s->extradata_decoded) { > int ret = decode_chunks(avctx, picture, got_output, > avctx->extradata, avctx->extradata_size); > + s->extradata_decoded = 1;
Is avctx->extradata guaranteed to be static during the whole decoding process? I'm not sure what mpeg12 extradata is supposed to contain. Just picture and sequence header? Janne _______________________________________________ libav-devel mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-devel
