ffmpeg | branch: release/2.2 | Luca Barbato <lu_z...@gentoo.org> | Mon May 25 
21:53:26 2015 +0200| [48c7fe5b5834a197f10a6eb56cbe7cda8ee32407] | committer: 
Reinhard Tartler

msrle: Use FFABS to determine the frame size in msrle_decode_pal4

As done in msrle_decode_8_16_24_32.

Bug-Id: CVE-2015-3395
CC: libav-sta...@libav.org

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=48c7fe5b5834a197f10a6eb56cbe7cda8ee32407
---

 libavcodec/msrledec.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/msrledec.c b/libavcodec/msrledec.c
index af2a247..370d9bd 100644
--- a/libavcodec/msrledec.c
+++ b/libavcodec/msrledec.c
@@ -39,7 +39,7 @@ static int msrle_decode_pal4(AVCodecContext *avctx, AVPicture 
*pic,
     unsigned int pixel_ptr = 0;
     int row_dec = pic->linesize[0];
     int row_ptr = (avctx->height - 1) * row_dec;
-    int frame_size = row_dec * avctx->height;
+    int frame_size = FFABS(row_dec) * avctx->height;
     int i;
 
     while (row_ptr >= 0) {

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