From patchwork Mon Sep 13 22:48:47 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Niedermayer X-Patchwork-Id: 30222 Delivered-To: ffmpegpatchwork2@gmail.com Received: by 2002:a05:6602:2a4a:0:0:0:0 with SMTP id k10csp4447060iov; Mon, 13 Sep 2021 15:55:23 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzI4hSONHxlWcZrChJPC0vXIzJvCGmMdo6greLAEq0KYseyxwcqcGLOYzJm+JPQtfzNLf8V X-Received: by 2002:a17:906:9aca:: with SMTP id ah10mr7886090ejc.471.1631573723379; Mon, 13 Sep 2021 15:55:23 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1631573723; cv=none; d=google.com; s=arc-20160816; b=yjHpGxUt4EPqgZ79BEIut6PzU7Pnbe+QEFtQVcluyt7zkT55AL5G7+LXYzxZMGVSHy Je37S70cdgldLdF0yYiU1p2M39g1KxNTMEJErqKPmsq8fQE9a0YtNv/PM0+DCPkdhRdi 0ACzHH7gPzDzkrxBJJcYSmO3mYH6PSUUpTR9noFsNYNscgeLMm5NdTm73RsGC7wjQ+4O R7IfdGEN5rRdmqZHytkq39OE3Qabay8OF3R1j+yuT5yzXHne4J8ZAVfu1dCCfcaxJtQ0 /Sh1kUBS9GzowYgCBG6MYhBmCYiFoTnFIe/EZbfVecJeAFSiLL/d2KVGbDe+EU5QKptx +hcQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:content-transfer-encoding:mime-version:reply-to :list-subscribe:list-help:list-post:list-archive:list-unsubscribe :list-id:precedence:subject:references:in-reply-to:message-id:date :to:from:delivered-to; bh=sWQ55edA3auwhIHn9xzANYLqMkOtZfSwe1EbIEQNz3U=; b=IH+KEVXCx+cEzuknXn3kLHIXGBMLQuZHQDv+I0jMPvPflVCNXQQR5lxw9gRB0ZyaPn PVUbk87mmiMbKwezS+62xMu6KTsR0pyEAOWVMfRfwwOSTRQVEIvOClQeUMS5aeoOmNFe fo5eiJdlN8ZrcmHnmxuoBiaXFkbqs+yMQNWQ7RlRFraDKsp50Z/VbIMKLr+fCVFcx9wa EW3wzovF7UO8BckpCr7uNM8+bn1A3PZuqldC91UZkpnwZgwzzm4dEJCyu8R57tXxsfmh EB/difaCr04hA8TFMGRiynO0u2GueZadUyA46nJ25dEn8Em+YvQRXvVSkHy8RxO3MFr2 B6Mg== ARC-Authentication-Results: i=1; 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 Return-Path: Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org. [79.124.17.100]) by mx.google.com with ESMTP id 5si9206029ejm.327.2021.09.13.15.55.22; Mon, 13 Sep 2021 15:55:23 -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 587AC68AE99; Tue, 14 Sep 2021 01:55:20 +0300 (EEST) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from vie01a-dmta-pe05-2.mx.upcmail.net (vie01a-dmta-pe05-2.mx.upcmail.net [84.116.36.12]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 40F9168A9C9 for ; Tue, 14 Sep 2021 01:55:13 +0300 (EEST) Received: from [172.31.216.235] (helo=vie01a-pemc-psmtp-pe12.mail.upcmail.net) by vie01a-dmta-pe05.mx.upcmail.net with esmtp (Exim 4.92) (envelope-from ) id 1mPulp-00HXVy-0H for ffmpeg-devel@ffmpeg.org; Tue, 14 Sep 2021 00:49:49 +0200 Received: from localhost ([213.47.68.29]) by vie01a-pemc-psmtp-pe12.mail.upcmail.net with ESMTP id PukrmP99FljeHPukrmJNFk; Tue, 14 Sep 2021 00:48:49 +0200 X-Env-Mailfrom: michael@niedermayer.cc X-Env-Rcptto: ffmpeg-devel@ffmpeg.org X-SourceIP: 213.47.68.29 X-CNFS-Analysis: v=2.3 cv=BoHjPrf5 c=1 sm=1 tr=0 a=2hcxjKEKjp0CzLx6oWAm4g==:117 a=2hcxjKEKjp0CzLx6oWAm4g==:17 a=MKtGQD3n3ToA:10 a=1oJP67jkp3AA:10 a=GEAsPZ9sns4A:10 a=ZZnuYtJkoWoA:10 a=nZOtpAppAAAA:20 a=-z9YYwUMSaa8rQjUDVoA:9 a=1fhp2MxaeJtTNGEnv6mo:22 From: Michael Niedermayer To: FFmpeg development discussions and patches Date: Tue, 14 Sep 2021 00:48:47 +0200 Message-Id: <20210913224848.15336-2-michael@niedermayer.cc> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210913224848.15336-1-michael@niedermayer.cc> References: <20210913224848.15336-1-michael@niedermayer.cc> X-CMAE-Envelope: MS4wfD5erAe5McfWUQIGK8LmjCD90/XSSI2n+N+e/0KpmdHonVLTm9iFmyoxGu8Xs5maqLdUpc2hNabRLBW/l5krwvbmBqk3XsdLuYHmWLvY+5oywGaGoxkN tRrSOa61WW+Rfn43HxQuua5nGvN4TP1iAczHDe4pBxO0HeVj9z3J562H Subject: [FFmpeg-devel] [PATCH 2/3] avcodec/exr: Fix undefined integer multiplication X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 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" X-TUID: v1UR/UKE7wKT Fixes: signed integer overflow: 7020950083487072256 * 2 cannot be represented in type 'long long' Fixes: 37523/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_EXR_fuzzer-5133634955771904 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/exr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/exr.c b/libavcodec/exr.c index 67340c892da..c395b6098df 100644 --- a/libavcodec/exr.c +++ b/libavcodec/exr.c @@ -1062,7 +1062,7 @@ static int dwa_uncompress(EXRContext *s, const uint8_t *src, int compressed_size } { - unsigned long dest_len = dc_count * 2LL; + unsigned long dest_len = dc_count * 2ULL; GetByteContext agb = gb; if (dc_count != dc_w * dc_h * 3)