From 37138338ff602803d174b13fecd363a083bc2f9a Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michael@niedermayer.cc>
Date: Tue, 1 Nov 2016 19:24:49 +0100
Subject: avcodec/sunrast: Fix input buffer pointer check
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>
---
libavcodec/sunrast.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/sunrast.c b/libavcodec/sunrast.c
index 25e11f6cd2..0af5626e35 100644
--- a/libavcodec/sunrast.c
+++ b/libavcodec/sunrast.c
@@ -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;
--
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