From 8b5c29b6c2ab00f8fb545475238a99f575b5d81d Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Thu, 22 Feb 2018 03:04:40 +0100 Subject: [PATCH] avcodec/truemotion2rt: Check input buffer size Fixes: Timeout Fixes: 6250/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TRUEMOTION2RT_fuzzer-5479814011027456 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/truemotion2rt.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavcodec/truemotion2rt.c b/libavcodec/truemotion2rt.c index d63918742d..9df0b527bb 100644 --- a/libavcodec/truemotion2rt.c +++ b/libavcodec/truemotion2rt.c @@ -116,6 +116,9 @@ static int truemotion2rt_decode_frame(AVCodecContext *avctx, void *data, if (ret < 0) return ret; + if (avctx->width / s->hscale * avctx->height * s->delta_size > avpkt->size * 8LL * 4) + return AVERROR_INVALIDDATA; + ret = init_get_bits8(gb, avpkt->data + ret, avpkt->size - ret); if (ret < 0) return ret;