ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Sat May 11 23:05:47 2019 +0200| [407e7c34ca8a3047e4f1b14287053638b4add68d] | committer: Michael Niedermayer
avcodec/hq_hqa: Check available space before reading slice offsets Fixes: Timeout (43sec -> 18sec) Fixes: 14556/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HQ_HQA_fuzzer-5673543024508928 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Paul B Mahol <one...@gmail.com> Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=407e7c34ca8a3047e4f1b14287053638b4add68d --- libavcodec/hq_hqa.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavcodec/hq_hqa.c b/libavcodec/hq_hqa.c index ec9da3e04f..90bafdc72a 100644 --- a/libavcodec/hq_hqa.c +++ b/libavcodec/hq_hqa.c @@ -248,6 +248,9 @@ static int hqa_decode_frame(HQContext *ctx, AVFrame *pic, size_t data_size) int width, height, quant; const uint8_t *src = ctx->gbc.buffer; + if (bytestream2_get_bytes_left(&ctx->gbc) < 8 + 4*(num_slices + 1)) + return AVERROR_INVALIDDATA; + width = bytestream2_get_be16(&ctx->gbc); height = bytestream2_get_be16(&ctx->gbc); _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
