Fixes: out of array access Fixes: 18432/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMAV2_fuzzer-5675574936207360
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/utils.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/libavcodec/utils.c b/libavcodec/utils.c index 6cc770b1ea..75e7035b8a 100644 --- a/libavcodec/utils.c +++ b/libavcodec/utils.c @@ -694,6 +694,11 @@ int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *code ret = AVERROR(EINVAL); goto free_and_end; } + if (avctx->block_align < 0) { + av_log(avctx, AV_LOG_ERROR, "Invalid block align: %d\n", avctx->block_align); + ret = AVERROR(EINVAL); + goto free_and_end; + } avctx->codec = codec; if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) && -- 2.23.0 _______________________________________________ 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".