From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 75FD3C433E0 for ; Sun, 24 Jan 2021 02:24:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3D70B22B51 for ; Sun, 24 Jan 2021 02:24:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726460AbhAXCY1 (ORCPT ); Sat, 23 Jan 2021 21:24:27 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33972 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726288AbhAXCY0 (ORCPT ); Sat, 23 Jan 2021 21:24:26 -0500 Received: from mail-pl1-x632.google.com (mail-pl1-x632.google.com [IPv6:2607:f8b0:4864:20::632]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CD5D0C0613D6 for ; Sat, 23 Jan 2021 18:23:45 -0800 (PST) Received: by mail-pl1-x632.google.com with SMTP id u11so5485393plg.13 for ; Sat, 23 Jan 2021 18:23:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=eM7G10SsulrYvWpwzx1SSvVfv4zOutKSaprQVQH/14I=; b=IR8oBcxo4j9AWWEwOOWHuktyS0AQyjFtzQ5S3qMLD8pUuGRXqzc3BjgdCj5JzuREnl RD6nNeNGUzD7xTgYtgahoz8RzrtnSV7NA3TkKvzHNFylUJdWfYzvez8z2l+f1mkoMzUr 0yQl+qJTpn620WvSOdHpQOA2l9A5HrQa47rI121ldxDypff1sWguluWBzEna3gHUnyjP vBSROqHMJ/e2BFs7DCnS7jgu+oSI0xo5AXgZ/hK0QbiPU8l8n6DTsvFbDXNHs9nOA1tD GcMah9wiEz0PIjYT8hCrSoWMn7xKpWuKTFgBl4SjbkLIfqAna5X6tfxeTdJKUUZh0LtP dDKg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=eM7G10SsulrYvWpwzx1SSvVfv4zOutKSaprQVQH/14I=; b=pdb6xw+gtvrJcJEYrI/bWC9NY/X2/SKN20h8ivptLkWXwmgU46Y0NeC8++cC8Y1f4b NFOmO7eR444U03kf88vhvviibUF13TDVXIYULEoHXfL2xdoYMFZmx0SPA0mvVOs/zb8s 2zz1gsN1GaN4f51olH8/Li2ZlXkvoutm5qhp0YMtJvCIlnH5vVPh3HL35yE7jL+S87kR /0WmuLil+YtzIrA91QBM2qhxUDVP5hNGXwEOMYFX9Nnx9e0lp2hgSJL1JmIH2om5N7OF WTeOxtVZCqCHUYXShp2RNLSDNbyaXjLtovFv1nY5QraYpGThHvkoCtTQcUbsds7lKsBV Iw3w== X-Gm-Message-State: AOAM5301s/cUDajNYEmIcNQCL/m1BYGtQjmqBnxZLJnp2MQ22h7IljDo zXIxQnoKc8ZW/Q0kHPPO1Ho= X-Google-Smtp-Source: ABdhPJzLp1FpRGsWgawxV/W/MUC92TZNFCXo/++eU1xad8shffqyJUkrBSk5IhqoxHVs0XWhil80dA== X-Received: by 2002:a17:90a:bf05:: with SMTP id c5mr3607750pjs.90.1611455025469; Sat, 23 Jan 2021 18:23:45 -0800 (PST) Received: from localhost.localdomain ([125.227.22.95]) by smtp.gmail.com with ESMTPSA id 184sm12377674pgi.92.2021.01.23.18.23.43 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Sat, 23 Jan 2021 18:23:45 -0800 (PST) From: Stephen Zhang To: akpm@linux-foundation.org Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Stephen Zhang Subject: [PATCH] mm/memfd: replace strcpy() by strscpy() Date: Sun, 24 Jan 2021 10:23:37 +0800 Message-Id: <1611455017-2210-1-git-send-email-stephenzhangzsd@gmail.com> X-Mailer: git-send-email 1.8.3.1 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The strcpy() function is being deprecated. Replace it by the safer strscpy(). Signed-off-by: Stephen Zhang --- mm/memfd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/memfd.c b/mm/memfd.c index 2647c89..bb90862 100644 --- a/mm/memfd.c +++ b/mm/memfd.c @@ -278,7 +278,7 @@ long memfd_fcntl(struct file *file, unsigned int cmd, unsigned long arg) if (!name) return -ENOMEM; - strcpy(name, MFD_NAME_PREFIX); + strscpy(name, MFD_NAME_PREFIX, len + MFD_NAME_PREFIX_LEN); if (copy_from_user(&name[MFD_NAME_PREFIX_LEN], uname, len)) { error = -EFAULT; goto err_name; -- 1.8.3.1