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[79.124.17.100]) by mx.google.com with ESMTP id l23-20020aa7c317000000b005048b964ed4si7773323edq.562.2023.04.11.02.49.47; Tue, 11 Apr 2023 02:49:48 -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; dkim=neutral (body hash did not verify) header.i=@foxmail.com header.s=s201512 header.b=vkBN9eLL; 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; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=foxmail.com Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id D1EE768AF54; Tue, 11 Apr 2023 12:49:43 +0300 (EEST) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from out162-62-57-87.mail.qq.com (out162-62-57-87.mail.qq.com [162.62.57.87]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id E7CCA6801DB for ; Tue, 11 Apr 2023 12:49:36 +0300 (EEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foxmail.com; s=s201512; t=1681206568; bh=lF9fmYdMcbmZwgUOuILoTrZlvZA85eUlWd7TAqFJByw=; h=From:To:Cc:Subject:Date; b=vkBN9eLLhIJT6+c7XMndJtD/mkH+AAC0Uk9mVV54bXZO0sJ3O+aiDImXWyWWyw+R8 o2+PLnQQ77RCCuf1BbmoKQClkhEZ7+n/1CH2ZO9/dvhCPzviy4zCplR78JtBTQ0b7e 8SrW07u2gJ+P3gxfjB9mRspZReihJLzMjggI7EsE= Received: from localhost.localdomain ([119.147.10.193]) by newxmesmtplogicsvrsza10-0.qq.com (NewEsmtp) with SMTP id C5BAE011; Tue, 11 Apr 2023 17:49:27 +0800 X-QQ-mid: xmsmtpt1681206567ta32ei6y3 Message-ID: X-QQ-XMAILINFO: MmuCfgcSBfHxdGr8G8wtsMt6PRia/iHtdKBBdmxh4M3exeLrv0MvhDD+Y/KYax wqbitbfwE0lNT/2cZ277z6anco/cEziYEPVZ+c10xuJ/eC8muE4OR2w0WX+9fSXLK4l/3IKRd70Q qpILb/5PA3tkVsqgSvgYRvd7NgKtqUOAjknWjajVXjREGpuafntiRPYVoX/15+/LfKCzjFj1bfHz qX7X9iZpDis5CFsrtTOFG2pxkhY66jtK0vmYyb/Tg5p5jaZ9uZmmhYTPfIZrg2mrYxMLo96PgeQH S1rmxFoHOVQybeGQ633cmrbBq7/Qc4eRjTU3+oGRfxEjVD/qnG99BA6DA9QBcg012dpuPLnEznaW F7FooJri2rNvlbSxbpDEESmmqobjz2VYK0xkEPFSwSdWq97gnRXTeH1O2MOmYEXn8nzIL+6H+Qn2 6K+tHcW7R5tlejvdEfNMD4o6BaiWU3jJitJvc/TpxQjgLmD0JHmN8gpQwa2izrL6640I8bvm2pNg H7wTe9RnD5cA2gyeUW1QJ4x1hznJuiqwa+ZgwA1P26BhObMEsyHMsGxdB664ZBcOMUczLYO/cNkd TYvl7LnyYCHFUWx29EBa++rGFJ4tUrvmP6D3hwgwGaRJmL4D0GgEshqd5d318QJ9aQxhQSxdecEJ bUtJ4LHLgtAKTeAbtWmBeTd4DYf1bT8ymUc7EZbekVPFO1kO+s5+yOa1si7lY7Iq6irRgo55dIXO ilFyDWVe/GzP+qD1j1QZwClbaMPxF5mRC1DF/QFTjAQuyf7pw8/7vwwBfRaDsOPtcDfId/Io4L/u J4p+ePQFkflB1G30Eeu/YxVb9cJVud6CCx5T6RaQ36VRt14adoTh+JqdrjyDjfO66GPHJSpTPzSG z+O/LfRsUBG0lgFRX5hbonYqyvT98uJ4meGbJ/BPSYRUpxmHDHqyBFQ9/CuB6+prS5QMj7QOWw/B wwqdUYbvaG0aOEc2lvtw== From: Zhao Zhili To: ffmpeg-devel@ffmpeg.org Date: Wed, 12 Apr 2023 01:49:26 +0800 X-OQ-MSGID: <20230411174927.780300-1-quinkblack@foxmail.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH 1/2] avcodec/avcodec: fix UB NULL+0 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: Zhao Zhili Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" X-TUID: 9Yp4X19wtUV2 From: Zhao Zhili --- libavcodec/avcodec.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/libavcodec/avcodec.c b/libavcodec/avcodec.c index fb1362290f..5a96899d50 100644 --- a/libavcodec/avcodec.c +++ b/libavcodec/avcodec.c @@ -44,10 +44,11 @@ int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size) { - int i; + size_t i; for (i = 0; i < count; i++) { - int r = func(c, (char *)arg + i * size); + size_t offset = i * size; + int r = func(c, FF_PTR_ADD((char *)arg, offset)); if (ret) ret[i] = r; }