From eac161451d248fdd375d403f9bb7d0bec68bc40b Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Wed, 2 Sep 2015 02:10:31 +0200 Subject: [PATCH] avcodec/ffv1dec: Check that there is enough space for the CRC in the global header Signed-off-by: Michael Niedermayer --- libavcodec/ffv1dec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/ffv1dec.c b/libavcodec/ffv1dec.c index 6c035b8eab..133ad851d6 100644 --- a/libavcodec/ffv1dec.c +++ b/libavcodec/ffv1dec.c @@ -594,7 +594,7 @@ static int read_extra_header(FFV1Context *f) unsigned v; v = av_crc(av_crc_get_table(AV_CRC_32_IEEE), 0, f->avctx->extradata, f->avctx->extradata_size); - if (v) { + if (v || f->avctx->extradata_size < 4) { av_log(f->avctx, AV_LOG_ERROR, "CRC mismatch %X!\n", v); return AVERROR_INVALIDDATA; }