From 145023f57262d21474e35b4a6069cf95136339d4 Mon Sep 17 00:00:00 2001 From: Luca Barbato Date: Thu, 6 Jun 2013 16:58:57 +0200 Subject: [PATCH] 4xm: reject frames not compatible with the declared version Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org --- libavcodec/4xm.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavcodec/4xm.c b/libavcodec/4xm.c index 1e706448c1..3d8906bffe 100644 --- a/libavcodec/4xm.c +++ b/libavcodec/4xm.c @@ -837,6 +837,9 @@ static int decode_frame(AVCodecContext *avctx, void *data, av_log(f->avctx, AV_LOG_ERROR, "cframe id mismatch %d %d\n", id, avctx->frame_number); + if (f->version <= 1) + return AVERROR_INVALIDDATA; + cfrm->size = cfrm->id = 0; frame_4cc = AV_RL32("pfrm"); } else