Fixes: Timeout Fixes: 54772/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MVHA_fuzzer-5484199677394944
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/mvha.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/libavcodec/mvha.c b/libavcodec/mvha.c index b1661c1c3b..55056c91cf 100644 --- a/libavcodec/mvha.c +++ b/libavcodec/mvha.c @@ -159,9 +159,6 @@ static int decode_frame(AVCodecContext *avctx, AVFrame *frame, if (size < 1 || size >= avpkt->size) return AVERROR_INVALIDDATA; - if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) - return ret; - if (type == MKTAG('L','Z','Y','V')) { z_stream *const zstream = &s->zstream.zstream; ret = inflateReset(zstream); @@ -170,6 +167,9 @@ static int decode_frame(AVCodecContext *avctx, AVFrame *frame, return AVERROR_EXTERNAL; } + if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) + return ret; + zstream->next_in = avpkt->data + 8; zstream->avail_in = avpkt->size - 8; @@ -218,10 +218,16 @@ static int decode_frame(AVCodecContext *avctx, AVFrame *frame, } } + if (get_bits_left(gb) < avctx->height * avctx->width) + return AVERROR_INVALIDDATA; + ret = build_vlc(avctx, &s->vlc); if (ret < 0) return ret; + if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) + return ret; + for (int p = 0; p < 3; p++) { int width = avctx->width >> (p > 0); ptrdiff_t stride = frame->linesize[p]; -- 2.17.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
