From patchwork Fri Feb 11 12:51:55 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Liu Steven X-Patchwork-Id: 34229 Delivered-To: ffmpegpatchwork2@gmail.com Received: by 2002:a05:6838:14aa:0:0:0:0 with SMTP id bz10csp3172152nkb; Fri, 11 Feb 2022 04:52:17 -0800 (PST) X-Google-Smtp-Source: ABdhPJwNsOBC8VVvk4GZ2RJt9Iutckun+SXGHmKOpNo7zbPj2G6OMi31PGdyBWjYvslSC4ZIiLPy X-Received: by 2002:a50:fb07:: with SMTP id d7mr1724118edq.442.1644583937127; Fri, 11 Feb 2022 04:52:17 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1644583937; cv=none; d=google.com; s=arc-20160816; b=oUfoCuqzB6xc60llBZvPb+aLCP9drpdT+T97rtmtSZKHKYuUSRvVfoND+gL7zqCcui OhRtg/Vw1biz5IHeGUhcx25WFFH+c0jTr2elqedG8e91Mwt4jVBo1UFQdtwuoShK4O3X m/+AKq8A47+mRs+oWhIC4FZc1/ULjrD/wIrR6nhZT47P7edrbMIjruhNt5z/GL9HMaLD TXiV/K8QBzijpIphBlWXSOWriDWojFRfj4Nan+ihAt39h+Pyw2ZKShL0+3ZJ222CBp7C BxNttgl1oqxXW484ixJsrl62aWxAs41ot7D7NzPsrwUFuHKr1qL0lEGdLJtazbfAjWZO G5yw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:content-transfer-encoding:cc:reply-to :list-subscribe:list-help:list-post:list-archive:list-unsubscribe :list-id:precedence:subject:feedback-id:mime-version:message-id:date :to:from:delivered-to; bh=AFvmpxfQcwJ8sBFgl8kR6TbaVMtwD389pUWdbGsduWg=; b=JZotAvphGDpiNAh8W20EnfhPg99VZr0Zf8TNjDMAlOG7dh9XwTn4ACpacUIfbD6coX NUaV4Zk+zHNrwlLCVqVyUGZZwqkmfVTFC6VzO9E4SipT7nbHoR/pccRB+D6nFRySVkZg KAjq/okQZ39XBDNUGcCmDZpXKCZ3DeHfSkinfmROtDMGFdcKoB4d1YER4/7DfkmwlHtE 1glIR6g8lUtfZq+h15rRfK0q2YhoMbQooPB5/PSaGbA+90bHDZN8qylgK6toZkApHKxD 3SUPusFjMqZ2D+nzICwyAIzvDbnB+Zcatb1uIOle3pUoZf8r76bxaNsr+pmpOxD0y2Mo 5JMQ== 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 qb1si3237457ejc.233.2022.02.11.04.52.16; Fri, 11 Feb 2022 04:52:17 -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 61BF568B1BD; Fri, 11 Feb 2022 14:52:12 +0200 (EET) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from smtpbg604.qq.com (smtpbg604.qq.com [59.36.128.82]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id D120168B10D for ; Fri, 11 Feb 2022 14:52:04 +0200 (EET) X-QQ-mid: bizesmtp39t1644583918twlqw231 Received: from localhost (unknown [103.107.216.231]) by bizesmtp.qq.com (ESMTP) with id ; Fri, 11 Feb 2022 20:51:58 +0800 (CST) X-QQ-SSF: 01100000002000Z0Z000000A0000000 X-QQ-FEAT: YSwSv5UBo8iehyJ3P3rMyCRavacPIa8uv55LEfbAvGL05reMnZYnL9YVtsmQC hXfSla7h9vRQy6QIFx0663KonRB/8DLp1GNlkOsMa9Guh5nRdA7Uk5j5HG8GdYWV3dVkKHO opmpToYCi8Huyu8+Hw1h3ZS5xrjpWTV8IiZ2QyidlX4lPPlWzeCrBNpVbVTzOOyynawYlIN JAloNZr37LtVKRZdYMRlt6Zr6hGcIDZpiDnHiDwRApYME/SgMC7RtjKqH3abE6xEffgs2yX Z0tGnAqip4J+KJJoF1LG6HpjAQ3peUBJCI06Ssoh2d+Efco/WeRW9gvNRC+0Fvwym/YXbiN l8HTjCsP/GuTqOEd9U= X-QQ-GoodBg: 0 From: Steven Liu To: ffmpeg-devel@ffmpeg.org Date: Fri, 11 Feb 2022 20:51:55 +0800 Message-Id: <20220211125155.11643-1-lq@chinaffmpeg.org> X-Mailer: git-send-email 2.25.0 MIME-Version: 1.0 X-QQ-SENDSIZE: 520 Feedback-ID: bizesmtp:chinaffmpeg.org:qybgspam:qybgspam4 Subject: [FFmpeg-devel] [PATCH] avcodec/vp6: Check alpha_context for allocation failures 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 Cc: Steven Liu , TOTE Robot Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" X-TUID: vCK6NW7G9EEM Fixes: null pointer dereference Reported-by: TOTE Robot Signed-off-by: Steven Liu --- libavcodec/vp6.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavcodec/vp6.c b/libavcodec/vp6.c index d024370793..7ddabbff80 100644 --- a/libavcodec/vp6.c +++ b/libavcodec/vp6.c @@ -653,6 +653,8 @@ static av_cold int vp6_decode_init(AVCodecContext *avctx) if (s->has_alpha) { s->alpha_context = av_mallocz(sizeof(VP56Context)); + if (!s->alpha_context) + return AVERROR(ENOMEM); ff_vp56_init_context(avctx, s->alpha_context, s->flip == -1, s->has_alpha); ff_vp6dsp_init(&s->alpha_context->vp56dsp);