From 3d7817048cb387de87600f2152075f78b37b60a6 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Thu, 16 Aug 2012 22:28:29 +0200 Subject: [PATCH] escape124: fix integer overflow leading to excessive memory allocation Fixes Ticket1629 Signed-off-by: Michael Niedermayer --- libavcodec/escape124.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavcodec/escape124.c b/libavcodec/escape124.c index 12569c1270..0ef16b5b1a 100644 --- a/libavcodec/escape124.c +++ b/libavcodec/escape124.c @@ -48,7 +48,7 @@ typedef struct Escape124Context { CodeBook codebooks[3]; } Escape124Context; -static int can_safely_read(GetBitContext* gb, int bits) { +static int can_safely_read(GetBitContext* gb, uint64_t bits) { return get_bits_left(gb) >= bits; } @@ -90,7 +90,7 @@ static CodeBook unpack_codebook(GetBitContext* gb, unsigned depth, unsigned i, j; CodeBook cb = { 0 }; - if (!can_safely_read(gb, size * 34)) + if (!can_safely_read(gb, size * 34L)) return cb; if (size >= INT_MAX / sizeof(MacroBlock))