From 607f57152c59bcec26caaf2060a86d96f76c4e8b Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sat, 14 Apr 2012 14:49:22 +0200 Subject: wmalosslessdec: make MCLMS arrays big enough for what is written into them. Fixes a part of CVE-2012-2795 CC:libav-stable@libav.org Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Anton Khirnov --- libavcodec/wmalosslessdec.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'libavcodec/wmalosslessdec.c') diff --git a/libavcodec/wmalosslessdec.c b/libavcodec/wmalosslessdec.c index c67a392bfe..cfa877f086 100644 --- a/libavcodec/wmalosslessdec.c +++ b/libavcodec/wmalosslessdec.c @@ -129,8 +129,8 @@ typedef struct WmallDecodeCtx { int8_t mclms_scaling; int16_t mclms_coeffs[128]; int16_t mclms_coeffs_cur[4]; - int16_t mclms_prevvalues[64]; - int16_t mclms_updates[64]; + int16_t mclms_prevvalues[WMALL_MAX_CHANNELS * 2 * 32]; + int16_t mclms_updates[WMALL_MAX_CHANNELS * 2 * 32]; int mclms_recent; int movave_scaling; -- cgit v1.2.3