From 006508032057824a371bec4e629b66f8cbb26c47 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sun, 29 Jan 2012 04:39:37 +0100 Subject: [PATCH] proresdec: Fix read via negative index in a global array. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer --- libavcodec/proresdec2.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/proresdec2.c b/libavcodec/proresdec2.c index fe4cfd09b8..9f801e447a 100644 --- a/libavcodec/proresdec2.c +++ b/libavcodec/proresdec2.c @@ -302,7 +302,7 @@ static av_always_inline void decode_dc_coeffs(GetBitContext *gb, DCTELEM *out, code = 5; sign = 0; for (i = 1; i < blocks_per_slice; i++, out += 64) { - DECODE_CODEWORD(code, dc_codebook[FFMIN(code, 6)]); + DECODE_CODEWORD(code, dc_codebook[FFMIN(code, 6U)]); if(code) sign ^= -(code & 1); else sign = 0; prev_dc += (((code + 1) >> 1) ^ sign) - sign;