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avcodec/wmaprodec: Set packet_loss when we error out on a sanity check 

Fixes: left shift of negative value -34
Fixes: 18719/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMAPRO_fuzzer-5642658173419520

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2019-11-12 20:25:00 +01:00
parent 5473c7825e
commit a9cbd25d89
1 changed files with 1 additions and 0 deletions
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libavcodec/wmaprodec.c
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@ -1644,6 +1644,7 @@ static int decode_packet(AVCodecContext *avctx, WMAProDecodeCtx *s,
if (avctx->codec_id == AV_CODEC_ID_WMAPRO && buf_size < avctx->block_align) {
av_log(avctx, AV_LOG_ERROR, "Input packet too small (%d < %d)\n",
buf_size, avctx->block_align);
s->packet_loss = 1;
return AVERROR_INVALIDDATA;
}