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=-12.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, 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 DF281C433DF for ; Mon, 24 Aug 2020 12:57:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C163A20706 for ; Mon, 24 Aug 2020 12:57:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728049AbgHXM5E (ORCPT ); Mon, 24 Aug 2020 08:57:04 -0400 Received: from mail-lf1-f66.google.com ([209.85.167.66]:47083 "EHLO mail-lf1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726799AbgHXM5A (ORCPT ); Mon, 24 Aug 2020 08:57:00 -0400 Received: by mail-lf1-f66.google.com with SMTP id v12so4209177lfo.13; Mon, 24 Aug 2020 05:56:58 -0700 (PDT) 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:mime-version :content-transfer-encoding; bh=rmefo9JeNKbiRxEroXLrRSeRCr+DW21/6Xw4UwzMQoc=; b=XcKMfPCEpXGeYjpqTmoaXolEKE/Ivw/H1eykj8pfM7ZYKbv2kf93GuTy0GlPL5r7tf mhNYlITtlA2qU1TzVpRoN/STVT6I4Bix+G6hbbQ524s2bINamWMzscCB11E5wRojTv41 xacrMeFKBgS7cpfwZgaekoo2V4UYjxNVpdiZAJc4D7xfMIylJ4nmgX3pK7kfMYRlUYFU 5HWMdarsdfFS27PSN0p3fe2V4hI8za2O586oUwFmEnyu8SZ5S4wXGikHyA6KWLEHtTVa nkwPX6VDGtEw6VAfa3Sa3G6UGAyqgWSPWpfZImhodl/xMiJ0UtU+j+kNibsTYNB8VucV 2hsw== X-Gm-Message-State: AOAM530qxg7LlFbAjSUznbp4I7dlfCBUxJ6WftbS8YsakrLVrGXC5tOv 3wMAJJTGlmkc1+ezw2rLgeI= X-Google-Smtp-Source: ABdhPJxtnD6qvH6S/v6pUQKAXjJ3kPM7Was6MUf+d493WDabRGlk5LdXUSSZL6wSpamAK3++ZnAtrA== X-Received: by 2002:ac2:46d4:: with SMTP id p20mr2560894lfo.109.1598273817247; Mon, 24 Aug 2020 05:56:57 -0700 (PDT) Received: from localhost.localdomain ([213.87.147.111]) by smtp.googlemail.com with ESMTPSA id z18sm2171906lji.107.2020.08.24.05.56.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 24 Aug 2020 05:56:56 -0700 (PDT) From: Denis Efremov Cc: Denis Efremov , Alexander Viro , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] namei: use current_fsuid() in may_follow_link() Date: Mon, 24 Aug 2020 15:56:32 +0300 Message-Id: <20200824125632.487331-1-efremov@linux.com> X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit To: unlisted-recipients:; (no To-header on input) Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Modify may_follow_link() to use current_fsuid() Signed-off-by: Denis Efremov --- fs/namei.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/namei.c b/fs/namei.c index e99e2a9da0f7..1a47c9d8ce13 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -958,7 +958,7 @@ static inline int may_follow_link(struct nameidata *nd, const struct inode *inod return 0; /* Allowed if owner and follower match. */ - if (uid_eq(current_cred()->fsuid, inode->i_uid)) + if (uid_eq(current_fsuid(), inode->i_uid)) return 0; /* Allowed if parent directory not sticky and world-writable. */ -- 2.26.2