From patchwork Sat Mar 11 03:11:23 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Niedermayer X-Patchwork-Id: 2877 Delivered-To: ffmpegpatchwork@gmail.com Received: by 10.103.50.79 with SMTP id y76csp323597vsy; Fri, 10 Mar 2017 19:11:49 -0800 (PST) X-Received: by 10.223.138.134 with SMTP id y6mr18240003wry.118.1489201909229; Fri, 10 Mar 2017 19:11:49 -0800 (PST) Return-Path: Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org. [79.124.17.100]) by mx.google.com with ESMTP id x204si1638862wmg.164.2017.03.10.19.11.41; Fri, 10 Mar 2017 19:11:49 -0800 (PST) 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 4D7016897AB; Sat, 11 Mar 2017 05:11:23 +0200 (EET) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from vie01a-dmta-pe03-3.mx.upcmail.net (vie01a-dmta-pe03-3.mx.upcmail.net [62.179.121.162]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id A5B4268925C for ; Sat, 11 Mar 2017 05:11:16 +0200 (EET) Received: from [172.31.216.43] (helo=vie01a-pemc-psmtp-pe01) by vie01a-dmta-pe03.mx.upcmail.net with esmtp (Exim 4.87) (envelope-from ) id 1cmXRK-00059h-BW for ffmpeg-devel@ffmpeg.org; Sat, 11 Mar 2017 04:11:30 +0100 Received: from localhost ([213.47.41.20]) by vie01a-pemc-psmtp-pe01 with SMTP @ mailcloud.upcmail.net id uTBS1u0090S5wYM01TBTvX; Sat, 11 Mar 2017 04:11:27 +0100 X-SourceIP: 213.47.41.20 From: Michael Niedermayer To: FFmpeg development discussions and patches Date: Sat, 11 Mar 2017 04:11:23 +0100 Message-Id: <20170311031125.10925-1-michael@niedermayer.cc> X-Mailer: git-send-email 2.11.0 Subject: [FFmpeg-devel] [PATCH 1/3] avcodec/wavpack: Fix runtime error: signed integer overflow: -2147483648 + -83886075 cannot be represented in type 'int' 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: 761/clusterfuzz-testcase-5442222252097536 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/wavpack.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavcodec/wavpack.h b/libavcodec/wavpack.h index 0196574aab..445d593c3b 100644 --- a/libavcodec/wavpack.h +++ b/libavcodec/wavpack.h @@ -99,8 +99,8 @@ typedef struct WvChannel { // macros for manipulating median values #define GET_MED(n) ((c->median[n] >> 4) + 1) -#define DEC_MED(n) c->median[n] -= ((c->median[n] + (128 >> (n)) - 2) / (128 >> (n))) * 2 -#define INC_MED(n) c->median[n] += ((c->median[n] + (128 >> (n)) ) / (128 >> (n))) * 5 +#define DEC_MED(n) c->median[n] -= ((c->median[n] + (128 >> (n)) - 2) / (128 >> (n))) * 2U +#define INC_MED(n) c->median[n] += ((c->median[n] + (128 >> (n)) ) / (128 >> (n))) * 5U // macros for applying weight #define UPDATE_WEIGHT_CLIP(weight, delta, samples, in) \