From 081aa19ac93af7a7aec2233d29621c801ed5101d Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Tue, 12 Nov 2019 20:25:00 +0100 Subject: [PATCH] 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 (cherry picked from commit a9cbd25d89dbdf72f7b616fdf672d7da36143cfe) Signed-off-by: Michael Niedermayer --- libavcodec/wmaprodec.c | 1 + 1 file changed, 1 insertion(+) diff --git a/libavcodec/wmaprodec.c b/libavcodec/wmaprodec.c index ee2b3c5e2b..28824ed11f 100644 --- a/libavcodec/wmaprodec.c +++ b/libavcodec/wmaprodec.c @@ -1616,6 +1616,7 @@ 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; }