From 7f22a4ebc97817fd0968f5ea8295c9a59a6292e0 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sat, 17 Nov 2018 09:24:30 +0100 Subject: [PATCH] avcodec/truemotion2rt: Fix rounding in input size check Fixes: Timeout Fixes: 11332/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TRUEMOTION2RT_fuzzer-5678456612847616 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/truemotion2rt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/truemotion2rt.c b/libavcodec/truemotion2rt.c index 9df0b527bb..e3ab998fda 100644 --- a/libavcodec/truemotion2rt.c +++ b/libavcodec/truemotion2rt.c @@ -116,7 +116,7 @@ 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) + if ((avctx->width + s->hscale - 1)/ 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);