From 5ef7c84a9374681c64722a96d91741f3b990af2b Mon Sep 17 00:00:00 2001 From: Luca Barbato Date: Wed, 14 Aug 2013 16:51:53 +0200 Subject: [PATCH] dxa: Make sure the reference frame exists Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org --- libavcodec/dxa.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/libavcodec/dxa.c b/libavcodec/dxa.c index 9e7f453b08..ddc31f3413 100644 --- a/libavcodec/dxa.c +++ b/libavcodec/dxa.c @@ -255,6 +255,10 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPac case 3: case 4: case 5: + if (!tmpptr) { + av_log(avctx, AV_LOG_ERROR, "Missing reference frame.\n"); + return AVERROR_INVALIDDATA; + } frame->key_frame = !(compr & 1); frame->pict_type = (compr & 1) ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_I; for(j = 0; j < avctx->height; j++){