From patchwork Tue Sep 5 02:03:57 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Niedermayer X-Patchwork-Id: 43555 Delivered-To: ffmpegpatchwork2@gmail.com Received: by 2002:a05:6a20:4f16:b0:149:dfde:5c0a with SMTP id gi22csp1560214pzb; Mon, 4 Sep 2023 19:04:21 -0700 (PDT) X-Google-Smtp-Source: AGHT+IHrz2gPO03GDMQhb/vdaN8Tuq6JjHixAHI0en1xhA422H3QGHLUhwSSRaaYeIlO5DRKbXd0 X-Received: by 2002:a05:6402:430f:b0:51e:4218:b91b with SMTP id m15-20020a056402430f00b0051e4218b91bmr15275033edc.1.1693879461637; Mon, 04 Sep 2023 19:04:21 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1693879461; cv=none; d=google.com; s=arc-20160816; b=0I7BiLjYtB5ofKQV+KsKGmLEpUGrCFEwJaCm7eLe6ngxdQHZunQJNu6VZFib/iH/XW lOrdIYgfhz8QMAzsegK8aG9UwfUpl6m/VawUh82dTP32YNfeOEfARlpY2XOZWm/zi2oR 1tOQmH77D24zznp1nxL4B2vLkt0ueRbVMLnLYh/hGMqlNwJyvsHqxLrEEMycHa/mmUGY um8eXxnMYI9UMRw37msaRQusrkzjl1ZIb/+72dZgji3ZeceN88ZcHqgSB3C6mo0N80bt 2rLbMfNCQLmg4QzghGphXXLtFdf2tk/tCsSqp3MnlNdemzonMO2g7LG8pQatpZhTL78x fzOw== 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:message-id:date:to:from:delivered-to; bh=ccg0JK8bHr8wNuztK7Lm4+FDLjQa0saUyIjKBOSFRb0=; fh=e5zN9xSzcxLA6bGo3lF+CqTbY/oLwzApV03EO/RBfgQ=; b=KjE6m214Z4Jbw8baKSjoVa8SRiUfkEw5D3yMuciMFBmmidkEdnnvzYaqpQ4X9F7uLR zSs9rTs18fe3viBo29l0B5jcjDCpMlTBGHzMoWD34Jw35JK+ueX0nm6vcYQEiOGZyHo7 vAhctXjezW2pGktTEuWoIm/JzPnrKiOG3rAStiQh4P3gfQ4F/O/ZSW1VHbqIuiCWzVv8 rnHAJ79OZ5SqML/NT+nD5TucvdGWnPhz5OXaJfVN6CpnisAXIzQC4BV0Jy5k9+z0UIUB kEcS/j8N2A5XDRf93jN6LxgzovzNd7+BhU+1HppkGiXy91Fzl+GZXQAdQfFEWt8LcZ0p p0Tw== 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 k4-20020aa7c384000000b00523c9de0fa5si7043788edq.14.2023.09.04.19.04.09; Mon, 04 Sep 2023 19:04:21 -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 5893268C7C9; Tue, 5 Sep 2023 05:04:06 +0300 (EEST) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from relay6-d.mail.gandi.net (relay6-d.mail.gandi.net [217.70.183.198]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 144D168C68A for ; Tue, 5 Sep 2023 05:04:00 +0300 (EEST) Received: by mail.gandi.net (Postfix) with ESMTPSA id 2B07DC0006 for ; Tue, 5 Sep 2023 02:03:58 +0000 (UTC) From: Michael Niedermayer To: FFmpeg development discussions and patches Date: Tue, 5 Sep 2023 04:03:57 +0200 Message-Id: <20230905020358.32527-1-michael@niedermayer.cc> X-Mailer: git-send-email 2.17.1 X-GND-Sasl: michael@niedermayer.cc Subject: [FFmpeg-devel] [PATCH 1/2] avcodec/vmixdec: Fix signed integer overflow in dc 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: T+DriqfdxGML Fixes: signed integer overflow: 2147483181 + 1024 cannot be represented in type 'int' Fixes: 61117/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VMIX_fuzzer-5387692433866752 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/vmixdec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/vmixdec.c b/libavcodec/vmixdec.c index b77c90929a..8f2278b2ea 100644 --- a/libavcodec/vmixdec.c +++ b/libavcodec/vmixdec.c @@ -134,7 +134,7 @@ static int decode_dcac(AVCodecContext *avctx, ac_run = get_ue_golomb_long(ac_gb); } - block[0] = dc + add; + block[0] = dc + (unsigned)add; s->idsp.idct_put(dst + x, linesize, block); }