From patchwork Tue Dec 21 20:50:19 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luiz Augusto von Dentz X-Patchwork-Id: 527757 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 32DD0C433FE for ; Tue, 21 Dec 2021 20:50:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235134AbhLUUu0 (ORCPT ); Tue, 21 Dec 2021 15:50:26 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50398 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235115AbhLUUu0 (ORCPT ); Tue, 21 Dec 2021 15:50:26 -0500 Received: from mail-pl1-x62d.google.com (mail-pl1-x62d.google.com [IPv6:2607:f8b0:4864:20::62d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 06C0BC061574 for ; Tue, 21 Dec 2021 12:50:26 -0800 (PST) Received: by mail-pl1-x62d.google.com with SMTP id p14so191620plf.3 for ; Tue, 21 Dec 2021 12:50:26 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=9ihzvmfL1JKR63zuErQK+qR+qt0qyup6+/MlQjMaiNo=; b=WvASFp0ky7hePV+IeIuCjEqhfIhfX+8O4J6sP3YLk7cB66u0opDoQkdfX5062wKG2S 58jS0ppoNOxYWQFN5xOhf82+WxjaycumPCyrH4WkYxC8f5JRHIuf/OzoRgNYqVy8nL3O wQS4FpKzLKEpGCzV5B+pjDjg5ax2ca+ZJSh2iUN2goxa4yW3EXPGnmj51lXr27qRa/yX yarRrxBweA8ycKuaDQw6f1L1oS8QaKoMi4ZRQNDjdGgITQmpNGZc1oSnfnUdlxWZ9bHu zC5XQ6mu3iWk9USAUG6csQIbNE0E7xFjaTNkmxbs5H6kVLcsQTDaMWLkAITtmHukQr7G TkQA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=9ihzvmfL1JKR63zuErQK+qR+qt0qyup6+/MlQjMaiNo=; b=DVoSTT4Q7RrPlCq6gxFG+rpTjU4irOCRJMCrjB1Nvv9ocQ9xlL6FpyvqvGWhkeOL8f Q222HVguQLR3/v6Z4zAhNgGlaOiV+apRJXIDogsU0olGbrbgwjFF2FaFteswtyJZ+Swo FDJRWbDRioPlx3bGjGX46NXwnRW0YCdG9vTgRKPHJmIE6UPJrKnlzPNtJh+4GOqZXWwy fS3rt91yoo4Q4gEMuUYdq4BDUPrUuXqsC/NbDOs9T0DM6GLGaHhSvp2Ihp0txTq4vHYb KZVGAqwLfwIFwJ3Tq636/8eFaR4FGnNiowPghBRqEX9CufCZnSEbdxDvarLmtgwiKIqH GVJA== X-Gm-Message-State: AOAM533EY+5g3KtxN0CB8iNc/Njm/nuxr8XhYfmmjTHWNbgpE5ePLNmV zaDNel325e+wkMacE+WijOXnT3S6vBQ= X-Google-Smtp-Source: ABdhPJwL8Sr9tsAqA7gDE9Bqjv5pIey88E/9vLiVwvFWJmrCUaU9optkjHQ1ysJxrPIgpMMvF7vvkg== X-Received: by 2002:a17:90a:f001:: with SMTP id bt1mr265727pjb.60.1640119824888; Tue, 21 Dec 2021 12:50:24 -0800 (PST) Received: from lvondent-mobl4.intel.com (c-71-56-157-77.hsd1.or.comcast.net. [71.56.157.77]) by smtp.gmail.com with ESMTPSA id 72sm3973pfu.70.2021.12.21.12.50.24 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 21 Dec 2021 12:50:24 -0800 (PST) From: Luiz Augusto von Dentz To: linux-bluetooth@vger.kernel.org Subject: [PATCH v2 4/4] gattrib: Fix passing NULL to memcpy Date: Tue, 21 Dec 2021 12:50:19 -0800 Message-Id: <20211221205019.654432-4-luiz.dentz@gmail.com> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211221205019.654432-1-luiz.dentz@gmail.com> References: <20211221205019.654432-1-luiz.dentz@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org From: Luiz Augusto von Dentz This fixes the following runtime error: attrib/gattrib.c:198:2: runtime error: null pointer passed as argument 2, which is declared to never be null --- attrib/gattrib.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/attrib/gattrib.c b/attrib/gattrib.c index 270a37ebe..041b9d289 100644 --- a/attrib/gattrib.c +++ b/attrib/gattrib.c @@ -195,7 +195,9 @@ static uint8_t *construct_full_pdu(uint8_t opcode, const void *pdu, return NULL; buf[0] = opcode; - memcpy(buf + 1, pdu, length); + + if (pdu && length) + memcpy(buf + 1, pdu, length); return buf; }