[SCM] libav/experimental: wmalosslessdec: fix mclms_coeffs* array size

[siretart at users.alioth.debian.org]

The following commit has been merged in the experimental branch:
commit 849b9d34c7ef70b370c53e7af3940f51cbc07d0f
Author: Michael Niedermayer <michaelni at gmx.at>
Date:   Fri Feb 7 15:07:23 2014 +0100

    wmalosslessdec: fix mclms_coeffs* array size
    
    Fixes corruption of context
    
    Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
    CC:libav-stable at libav.org
    Bug-Id: CVE-2014-2098
    Signed-off-by: Anton Khirnov <anton at khirnov.net>

diff --git a/libavcodec/wmalosslessdec.c b/libavcodec/wmalosslessdec.c
index 6ee27d3..b8a1776 100644
--- a/libavcodec/wmalosslessdec.c
+++ b/libavcodec/wmalosslessdec.c
@@ -129,8 +129,8 @@ typedef struct WmallDecodeCtx {
 
     int8_t  mclms_order;
     int8_t  mclms_scaling;
-    int16_t mclms_coeffs[128];
-    int16_t mclms_coeffs_cur[4];
+    int16_t mclms_coeffs[WMALL_MAX_CHANNELS * WMALL_MAX_CHANNELS * 32];
+    int16_t mclms_coeffs_cur[WMALL_MAX_CHANNELS * WMALL_MAX_CHANNELS];
     int16_t mclms_prevvalues[WMALL_MAX_CHANNELS * 2 * 32];
     int16_t mclms_updates[WMALL_MAX_CHANNELS * 2 * 32];
     int     mclms_recent;

-- 
Libav/FFmpeg packaging