From patchwork Sat Mar 11 03:11:24 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Niedermayer X-Patchwork-Id: 2875 Delivered-To: ffmpegpatchwork@gmail.com Received: by 10.103.50.79 with SMTP id y76csp323623vsy; Fri, 10 Mar 2017 19:11:58 -0800 (PST) X-Received: by 10.28.224.11 with SMTP id x11mr1530346wmg.98.1489201918245; Fri, 10 Mar 2017 19:11:58 -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 z33si15320334wrc.101.2017.03.10.19.11.57; Fri, 10 Mar 2017 19:11:58 -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 3E6DD689811; Sat, 11 Mar 2017 05:11:27 +0200 (EET) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from vie01a-dmta-pe01-2.mx.upcmail.net (vie01a-dmta-pe01-2.mx.upcmail.net [62.179.121.155]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 2293268975F for ; Sat, 11 Mar 2017 05:11:21 +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 1cmXRP-0006WN-Hv for ffmpeg-devel@ffmpeg.org; Sat, 11 Mar 2017 04:11:35 +0100 Received: from localhost ([213.47.41.20]) by vie01a-pemc-psmtp-pe01 with SMTP @ mailcloud.upcmail.net id uTBT1u00W0S5wYM01TBUvm; Sat, 11 Mar 2017 04:11:28 +0100 X-SourceIP: 213.47.41.20 From: Michael Niedermayer To: FFmpeg development discussions and patches Date: Sat, 11 Mar 2017 04:11:24 +0100 Message-Id: <20170311031125.10925-2-michael@niedermayer.cc> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170311031125.10925-1-michael@niedermayer.cc> References: <20170311031125.10925-1-michael@niedermayer.cc> Subject: [FFmpeg-devel] [PATCH 2/3] avcodec/dca_xll: Fix runtime error: signed integer overflow: 1762028192 + 698372290 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: 762/clusterfuzz-testcase-5927683747741696 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/dca_xll.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/dca_xll.c b/libavcodec/dca_xll.c index 6cebda35e4..b7331e04b9 100644 --- a/libavcodec/dca_xll.c +++ b/libavcodec/dca_xll.c @@ -658,7 +658,7 @@ static void chs_filter_band_data(DCAXllDecoder *s, DCAXllChSet *c, int band) // Inverse fixed coefficient prediction for (j = 0; j < b->fixed_pred_order[i]; j++) for (k = 1; k < nsamples; k++) - buf[k] += buf[k - 1]; + buf[k] += (unsigned)buf[k - 1]; } }