On 06.01.2016 19:55, Andreas Cadhalpun wrote:
> This fixes infinite loops due to seeking back.
> ---
> libavformat/asfdec_o.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/libavformat/asfdec_o.c b/libavformat/asfdec_o.c
> index b81519f..4a3c815 100644
> --- a/libavformat/asfdec_o.c
> +++ b/libavformat/asfdec_o.c
> @@ -1287,6 +1287,10 @@ static int asf_read_payload(AVFormatContext *s,
> AVPacket *pkt)
> }
> if (!asf_pkt) {
> if (asf->packet_offset + asf->packet_size <= asf->data_offset +
> asf->data_size) {
> + if (!asf->packet_size) {
> + av_log(s, AV_LOG_ERROR, "Invalid packet size 0.\n");
> + return AVERROR_INVALIDDATA;
> + }
> avio_seek(pb, asf->packet_offset + asf->packet_size,
> SEEK_SET);
> av_log(s, AV_LOG_WARNING, "Skipping the stream with the
> invalid stream index %d.\n",
> asf->stream_index);
>
Pushed now, as Alexandra (the author over at Libav) seems fine with it.
Best regards,
Andreas
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