From 3d8d3729475c7dce52d8fb9ffb280fd2ea62e1a2 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Wed, 10 May 2017 14:33:27 +0200 Subject: [PATCH] avcodec/y41pdec: Fix width in input buffer size check Fixes: out of array read Fixes: 1437/clusterfuzz-testcase-minimized-4569970002362368 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/y41pdec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/y41pdec.c b/libavcodec/y41pdec.c index 1b177d4262..85a39e4ae2 100644 --- a/libavcodec/y41pdec.c +++ b/libavcodec/y41pdec.c @@ -43,7 +43,7 @@ static int y41p_decode_frame(AVCodecContext *avctx, void *data, uint8_t *y, *u, *v; int i, j, ret; - if (avpkt->size < 3LL * avctx->height * avctx->width / 2) { + if (avpkt->size < 3LL * avctx->height * FFALIGN(avctx->width, 8) / 2) { av_log(avctx, AV_LOG_ERROR, "Insufficient input data.\n"); return AVERROR(EINVAL); }