From patchwork Tue Sep 14 03:33:22 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Moore X-Patchwork-Id: 12491561 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=-13.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 5C421C433FE for ; Tue, 14 Sep 2021 03:33:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 453F0610A2 for ; Tue, 14 Sep 2021 03:33:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239100AbhINDfG (ORCPT ); Mon, 13 Sep 2021 23:35:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55878 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239160AbhINDel (ORCPT ); Mon, 13 Sep 2021 23:34:41 -0400 Received: from mail-qk1-x730.google.com (mail-qk1-x730.google.com [IPv6:2607:f8b0:4864:20::730]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 76FC2C061768 for ; Mon, 13 Sep 2021 20:33:24 -0700 (PDT) Received: by mail-qk1-x730.google.com with SMTP id ay33so13174097qkb.10 for ; Mon, 13 Sep 2021 20:33:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=paul-moore-com.20150623.gappssmtp.com; s=20150623; h=subject:from:to:date:message-id:in-reply-to:references:user-agent :mime-version:content-transfer-encoding; bh=pFa7GQIxXWl0c/uM3483yackGoLHK0NgaO+2cmzz5Nw=; b=wEpIkxBpc62PNnC88chQDJ6zl25RE56F/I9noxOjWlQLPwUG7cqnrdLMG7Wlk/LPnd Zm0E4bQI9M4k1UtZNyWF7wCSNgsKxaMFD4UNfcxkXMMfDVnjGPQ8M62e5Dnj6Jc6BrpB b5LKHdaK4Fq8cywiuL0lJxpzyTt+UP8nP/hFKMZkdqvbul8SNTDL4H34hOfutmA0ICb1 /410R7ECIcMMAC+kBO8BDZ0co8cHwwCm/YNfySjIvLgDLCHHnV/01gNm1lxD9uFNhedX 2J9FAsPgQ8h6ts8zlKrCJQXt626+kaQdlnB5snN96wzL4diruTl78Bl8L70wplAugZoJ KfMA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:subject:from:to:date:message-id:in-reply-to :references:user-agent:mime-version:content-transfer-encoding; bh=pFa7GQIxXWl0c/uM3483yackGoLHK0NgaO+2cmzz5Nw=; b=i3PuXqgNHyK9TA2u258ysV7f7eoRqk5/LtNEKKDAVEBciNaTc4l6Nc/lIRwp9NpqOQ mQiL6CQQtZ54DqDVT3b8yr7WcXi9bGSLLFAgH6zMLU0Vtsx7IYtstUVGBTu1cavqMflu ChvB8Yj5YtwU5wQVUxiD0lQhHHL6yTEra7iiXDO4bDW6zxHKFVj+gICW8KqyWqjYzj08 TyI0Y+0Jv/WjN53hieYeYyjFALvFhWtlQu0K2UTV5unP/zwvlLNs7emuelUFY18HhOaM lKOcjk6pbmLqwU4r0VxJwIfvMwm4hHP2uQe+unyzCskDfZHSdmLLKUVj8vJb/q5aoPYZ MyCw== X-Gm-Message-State: AOAM531NhbaMysejigPG02+yW7IekN3+yuliLs6osNrUVAbsVRtBDFeh +gjogyhVv4wekZXKtfSIsuZ3 X-Google-Smtp-Source: ABdhPJw+Gqp/QaKJUPx+eMnsA6HZ3RZzmRCYKVzNF9XtqTZeCyQUZcicJKwDykSIlKMgYCUZ69zReA== X-Received: by 2002:a05:620a:448e:: with SMTP id x14mr2935347qkp.526.1631590403616; Mon, 13 Sep 2021 20:33:23 -0700 (PDT) Received: from localhost (pool-96-237-52-188.bstnma.fios.verizon.net. [96.237.52.188]) by smtp.gmail.com with ESMTPSA id t26sm6530426qkm.0.2021.09.13.20.33.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 13 Sep 2021 20:33:23 -0700 (PDT) Subject: [PATCH v3 5/8] io_uring: convert io_uring to the secure anon inode interface From: Paul Moore To: linux-security-module@vger.kernel.org, selinux@vger.kernel.org, linux-audit@redhat.com, io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, Jens Axboe , Pavel Begunkov , Kumar Kartikeya Dwivedi Date: Mon, 13 Sep 2021 23:33:22 -0400 Message-ID: <163159040254.470089.7192304410101378968.stgit@olly> In-Reply-To: <163159032713.470089.11728103630366176255.stgit@olly> References: <163159032713.470089.11728103630366176255.stgit@olly> User-Agent: StGit/1.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Converting io_uring's anonymous inode to the secure anon inode API enables LSMs to enforce policy on the io_uring anonymous inodes if they chose to do so. This is an important first step towards providing the necessary mechanisms so that LSMs can apply security policy to io_uring operations. Signed-off-by: Paul Moore --- v3: - no change v2: - no change v1: - initial draft --- fs/io_uring.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/io_uring.c b/fs/io_uring.c index 388754b24785..56cc9aba0d01 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -10155,8 +10155,8 @@ static struct file *io_uring_get_file(struct io_ring_ctx *ctx) return ERR_PTR(ret); #endif - file = anon_inode_getfile("[io_uring]", &io_uring_fops, ctx, - O_RDWR | O_CLOEXEC); + file = anon_inode_getfile_secure("[io_uring]", &io_uring_fops, ctx, + O_RDWR | O_CLOEXEC, NULL); #if defined(CONFIG_UNIX) if (IS_ERR(file)) { sock_release(ctx->ring_sock);