lgtm On 9/25/19, Michael Niedermayer <[email protected]> wrote: > Fixes: out of array read > Fixes: > 17617/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HCOM_fuzzer-5674970478280704 > > Found-by: continuous fuzzing process > https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <[email protected]> > --- > libavcodec/hcom.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/libavcodec/hcom.c b/libavcodec/hcom.c > index bce9e80aa5..0559b050c3 100644 > --- a/libavcodec/hcom.c > +++ b/libavcodec/hcom.c > @@ -52,7 +52,8 @@ static av_cold int hcom_init(AVCodecContext *avctx) > if (avctx->extradata_size <= 7) > return AVERROR_INVALIDDATA; > s->dict_entries = AV_RB16(avctx->extradata); > - if (avctx->extradata_size < s->dict_entries * 4 + 7) > + if (avctx->extradata_size < s->dict_entries * 4 + 7 || > + s->dict_entries == 0) > return AVERROR_INVALIDDATA; > s->delta_compression = AV_RB32(avctx->extradata + 2); > s->sample = s->first_sample = avctx->extradata[avctx->extradata_size - > 1]; > -- > 2.23.0 > > _______________________________________________ > ffmpeg-devel mailing list > [email protected] > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel > > To unsubscribe, visit link above, or email > [email protected] with subject "unsubscribe". _______________________________________________ ffmpeg-devel mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
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