ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Wed Nov 20 21:13:01 2019 +0100| [6b7bcd437e590f1678cd6588dcb335d092a1e048] | committer: Michael Niedermayer
avcodec/decode: Fix integer overflow in max_samples check Fixes: signed integer overflow: 1677721600 * 32 cannot be represented in type 'int' Fixes: 18885/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FFWAVESYNTH_fuzzer-5741242185154560 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=6b7bcd437e590f1678cd6588dcb335d092a1e048 --- libavcodec/decode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/decode.c b/libavcodec/decode.c index 0883c7209c..cd275bacc4 100644 --- a/libavcodec/decode.c +++ b/libavcodec/decode.c @@ -1925,7 +1925,7 @@ static int get_buffer_internal(AVCodecContext *avctx, AVFrame *frame, int flags) return AVERROR(EINVAL); } } else if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) { - if (frame->nb_samples * avctx->channels > avctx->max_samples) { + if (frame->nb_samples * (int64_t)avctx->channels > avctx->max_samples) { av_log(avctx, AV_LOG_ERROR, "samples per frame %d, exceeds max_samples %"PRId64"\n", frame->nb_samples, avctx->max_samples); return AVERROR(EINVAL); } _______________________________________________ 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".
