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4xm: reject frames not compatible with the declared version

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Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
This commit is contained in:
Luca Barbato 2013-06-06 16:58:57 +02:00
parent 1f0c607560
commit 145023f572
1 changed files with 3 additions and 0 deletions
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3
libavcodec/4xm.c
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@ -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