From patchwork Tue Mar 7 01:41:41 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Niedermayer X-Patchwork-Id: 2778 Delivered-To: ffmpegpatchwork@gmail.com Received: by 10.103.50.79 with SMTP id y76csp351142vsy; Mon, 6 Mar 2017 17:42:17 -0800 (PST) X-Received: by 10.223.153.225 with SMTP id y88mr16273993wrb.81.1488850937555; Mon, 06 Mar 2017 17:42:17 -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 n133si16699707wmf.140.2017.03.06.17.42.17; Mon, 06 Mar 2017 17:42:17 -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 B7DF06805F4; Tue, 7 Mar 2017 03:41:49 +0200 (EET) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from vie01a-dmta-pe02-3.mx.upcmail.net (vie01a-dmta-pe02-3.mx.upcmail.net [62.179.121.159]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 8A4E8680461 for ; Tue, 7 Mar 2017 03:41:43 +0200 (EET) Received: from [172.31.216.43] (helo=vie01a-pemc-psmtp-pe01) by vie01a-dmta-pe02.mx.upcmail.net with esmtp (Exim 4.87) (envelope-from ) id 1cl48S-0006UU-1o for ffmpeg-devel@ffmpeg.org; Tue, 07 Mar 2017 02:41:56 +0100 Received: from localhost ([213.47.41.20]) by vie01a-pemc-psmtp-pe01 with SMTP @ mailcloud.upcmail.net id sphl1u0190S5wYM01phme8; Tue, 07 Mar 2017 02:41:47 +0100 X-SourceIP: 213.47.41.20 From: Michael Niedermayer To: FFmpeg development discussions and patches Date: Tue, 7 Mar 2017 02:41:41 +0100 Message-Id: <20170307014143.19735-2-michael@niedermayer.cc> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170307014143.19735-1-michael@niedermayer.cc> References: <20170307014143.19735-1-michael@niedermayer.cc> Subject: [FFmpeg-devel] [PATCH 2/4] avcodec/wavpack: Fix runtime error: left shift of negative value -5 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: 729/clusterfuzz-testcase-5154831595470848 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/wavpack.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/wavpack.c b/libavcodec/wavpack.c index a4ba07fc83..943e46a25c 100644 --- a/libavcodec/wavpack.c +++ b/libavcodec/wavpack.c @@ -273,7 +273,7 @@ static inline int wv_get_value_integer(WavpackFrameContext *s, uint32_t *crc, unsigned bit; if (s->extra_bits) { - S <<= s->extra_bits; + S *= 1 << s->extra_bits; if (s->got_extra_bits && get_bits_left(&s->gb_extra_bits) >= s->extra_bits) {