From patchwork Sun Jun 30 22:16:49 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Niedermayer X-Patchwork-Id: 13778 Return-Path: X-Original-To: patchwork@ffaux-bg.ffmpeg.org Delivered-To: patchwork@ffaux-bg.ffmpeg.org Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100]) by ffaux.localdomain (Postfix) with ESMTP id CDA60449128 for ; Mon, 1 Jul 2019 01:19:54 +0300 (EEST) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id B281168A803; Mon, 1 Jul 2019 01:19:54 +0300 (EEST) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from vie01a-dmta-pe07-3.mx.upcmail.net (vie01a-dmta-pe07-3.mx.upcmail.net [84.116.36.19]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 9F87768A1E2 for ; Mon, 1 Jul 2019 01:19:47 +0300 (EEST) Received: from [172.31.216.235] (helo=vie01a-pemc-psmtp-pe12.mail.upcmail.net) by vie01a-dmta-pe07.mx.upcmail.net with esmtp (Exim 4.92) (envelope-from ) id 1hhiAl-0009xM-0J for ffmpeg-devel@ffmpeg.org; Mon, 01 Jul 2019 00:19:47 +0200 Received: from localhost ([213.47.41.20]) by vie01a-pemc-psmtp-pe12.mail.upcmail.net with ESMTP id hi8oh56xm5D5Nhi8ohDfr7; Mon, 01 Jul 2019 00:17:47 +0200 X-Env-Mailfrom: michael@niedermayer.cc X-Env-Rcptto: ffmpeg-devel@ffmpeg.org X-SourceIP: 213.47.41.20 X-CNFS-Analysis: v=2.3 cv=bu8y+3Si c=1 sm=1 tr=0 a=I1eytVlZLDX1BM2VTtTtSw==:117 a=I1eytVlZLDX1BM2VTtTtSw==:17 a=jpOVt7BSZ2e4Z31A5e1TngXxSK0=:19 a=MKtGQD3n3ToA:10 a=1oJP67jkp3AA:10 a=GEAsPZ9sns4A:10 a=ZZnuYtJkoWoA:10 a=nZOtpAppAAAA:20 a=wpaO4OHuahhApKfNIWQA:9 a=1fhp2MxaeJtTNGEnv6mo:22 a=pHzHmUro8NiASowvMSCR:22 a=Ew2E2A-JSTLzCXPT_086:22 From: Michael Niedermayer To: FFmpeg development discussions and patches Date: Mon, 1 Jul 2019 00:16:49 +0200 Message-Id: <20190630221651.12795-2-michael@niedermayer.cc> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190630221651.12795-1-michael@niedermayer.cc> References: <20190630221651.12795-1-michael@niedermayer.cc> MIME-Version: 1.0 X-CMAE-Envelope: MS4wfDqSB9SzMvBFM58enxHT+DkES8cz0f8zX0zd8viOqpF9IiYdpLoDJ2glJ+ZT/pc0G9jqhAf3V7zclc098KnRFsTS9+fLfqfLl0woeoDW252rfeUURDFL YRXUXn/h0dpMAjhJuOLQ6iNYOoMl0zovP/X5fIM41McXCwQ3GzrUL0Dr Subject: [FFmpeg-devel] [PATCH 2/4] avcodec/agm: Fix overflow of signed shift 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 Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Fixes: left shift of 1 by 31 places cannot be represented in type 'int' Fixes: 15328/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AGM_fuzzer-5637545171353600 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/agm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/agm.c b/libavcodec/agm.c index a499c09082..2c4c9805e9 100644 --- a/libavcodec/agm.c +++ b/libavcodec/agm.c @@ -918,7 +918,7 @@ static void get_tree_codes(uint32_t *codes, Node *nodes, int idx, uint32_t pfx, codes[idx] = pfx; } else if (idx >= 0) { get_tree_codes(codes, nodes, nodes[idx].child[0], pfx + (0 << bitpos), bitpos + 1); - get_tree_codes(codes, nodes, nodes[idx].child[1], pfx + (1 << bitpos), bitpos + 1); + get_tree_codes(codes, nodes, nodes[idx].child[1], pfx + (1U << bitpos), bitpos + 1); } }