From patchwork Wed Mar 15 03:12:51 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Niedermayer X-Patchwork-Id: 2935 Delivered-To: ffmpegpatchwork@gmail.com Received: by 10.103.50.79 with SMTP id y76csp109516vsy; Tue, 14 Mar 2017 20:13:10 -0700 (PDT) X-Received: by 10.223.169.161 with SMTP id b30mr732699wrd.196.1489547590026; Tue, 14 Mar 2017 20:13:10 -0700 (PDT) Return-Path: Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org. [79.124.17.100]) by mx.google.com with ESMTP id 124si2212008wmc.106.2017.03.14.20.13.09; Tue, 14 Mar 2017 20:13:09 -0700 (PDT) Received-SPF: pass (google.com: domain of ffmpeg-devel-bounces@ffmpeg.org designates 79.124.17.100 as permitted sender) client-ip=79.124.17.100; Authentication-Results: mx.google.com; spf=pass (google.com: domain of ffmpeg-devel-bounces@ffmpeg.org designates 79.124.17.100 as permitted sender) smtp.mailfrom=ffmpeg-devel-bounces@ffmpeg.org Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 11A896882C8; Wed, 15 Mar 2017 05:12:50 +0200 (EET) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from vie01a-dmta-pe01-1.mx.upcmail.net (vie01a-dmta-pe01-1.mx.upcmail.net [62.179.121.154]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 259DD6806D4 for ; Wed, 15 Mar 2017 05:12:40 +0200 (EET) Received: from [172.31.216.43] (helo=vie01a-pemc-psmtp-pe01) by vie01a-dmta-pe01.mx.upcmail.net with esmtp (Exim 4.87) (envelope-from ) id 1cnzMt-0004jM-AW for ffmpeg-devel@ffmpeg.org; Wed, 15 Mar 2017 04:12:55 +0100 Received: from localhost ([213.47.41.20]) by vie01a-pemc-psmtp-pe01 with SMTP @ mailcloud.upcmail.net id w3Cu1u00N0S5wYM013Cv1x; Wed, 15 Mar 2017 04:12:55 +0100 X-SourceIP: 213.47.41.20 From: Michael Niedermayer To: FFmpeg development discussions and patches Date: Wed, 15 Mar 2017 04:12:51 +0100 Message-Id: <20170315031251.22570-3-michael@niedermayer.cc> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170315031251.22570-1-michael@niedermayer.cc> References: <20170315031251.22570-1-michael@niedermayer.cc> Subject: [FFmpeg-devel] [PATCH 3/3] avcodec/h264_cabac: Fix runtime error: negation of -2147483648 cannot be represented in type 'int'; cast to an unsigned type to negate this value to itself X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches MIME-Version: 1.0 Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Fixes: 858/clusterfuzz-testcase-5168477042114560 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/h264_cabac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/h264_cabac.c b/libavcodec/h264_cabac.c index 17a4bdadd6..a1a16daafa 100644 --- a/libavcodec/h264_cabac.c +++ b/libavcodec/h264_cabac.c @@ -1725,7 +1725,7 @@ decode_cabac_residual_internal(const H264Context *h, H264SliceContext *sl, ((type*)block)[j] = (get_cabac_bypass_sign( CC, -qmul[j]) + 32) >> 6; \ } \ } else { \ - int coeff_abs = 2; \ + unsigned coeff_abs = 2; \ ctx = coeff_abs_levelgt1_ctx[is_dc && chroma422][node_ctx] + abs_level_m1_ctx_base; \ node_ctx = coeff_abs_level_transition[1][node_ctx]; \ \