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avcodec/sunrast: Fix input buffer pointer check

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Fixes: out of array read
Fixes: poc.dat

Found-by: Bingchang, Liu @VARAS of IIE
Tested-by: bc L <l.bing.chang.bc@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 37138338ff)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2016-11-01 19:24:49 +01:00
parent 4251dc6d7e
commit bc63205ae2
1 changed files with 1 additions and 1 deletions
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libavcodec/sunrast.c
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@ -168,7 +168,7 @@ static int sunrast_decode_frame(AVCodecContext *avctx, void *data,
}
} else {
for (y = 0; y < h; y++) {
if (buf_end - buf < len)
if (buf_end - buf < alen)
break;
memcpy(ptr, buf, len);
ptr += stride;