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=-8.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham 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 6DAF5C388F7 for ; Wed, 28 Oct 2020 05:31:04 +0000 (UTC) Received: from mother.openwall.net (mother.openwall.net [195.42.179.200]) by mail.kernel.org (Postfix) with SMTP id C48DC2224E for ; Wed, 28 Oct 2020 05:31:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C48DC2224E Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=namei.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kernel-hardening-return-20292-kernel-hardening=archiver.kernel.org@lists.openwall.com Received: (qmail 32745 invoked by uid 550); 28 Oct 2020 05:30:55 -0000 Mailing-List: contact kernel-hardening-help@lists.openwall.com; run by ezmlm Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-ID: Received: (qmail 32713 invoked from network); 28 Oct 2020 05:30:55 -0000 Date: Wed, 28 Oct 2020 16:30:28 +1100 (AEDT) From: James Morris To: =?ISO-8859-15?Q?Micka=EBl_Sala=FCn?= cc: "Serge E . Hallyn" , Al Viro , Andy Lutomirski , Anton Ivanov , Arnd Bergmann , Casey Schaufler , Jann Horn , Jeff Dike , Jonathan Corbet , Kees Cook , Michael Kerrisk , Richard Weinberger , Shuah Khan , Vincent Dagonneau , kernel-hardening@lists.openwall.com, linux-api@vger.kernel.org, linux-arch@vger.kernel.org, linux-doc@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-security-module@vger.kernel.org, x86@kernel.org, =?ISO-8859-15?Q?Micka=EBl_Sala=FCn?= Subject: Re: [PATCH v22 06/12] fs,security: Add sb_delete hook In-Reply-To: <20201027200358.557003-7-mic@digikod.net> Message-ID: References: <20201027200358.557003-1-mic@digikod.net> <20201027200358.557003-7-mic@digikod.net> User-Agent: Alpine 2.21 (LRH 202 2017-01-01) MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="1665246916-1320537407-1603863028=:25689" This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --1665246916-1320537407-1603863028=:25689 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT On Tue, 27 Oct 2020, Mickaël Salaün wrote: > From: Mickaël Salaün > > The sb_delete security hook is called when shutting down a superblock, > which may be useful to release kernel objects tied to the superblock's > lifetime (e.g. inodes). > > This new hook is needed by Landlock to release (ephemerally) tagged > struct inodes. This comes from the unprivileged nature of Landlock > described in the next commit. > > Cc: Al Viro > Cc: James Morris > Cc: Jann Horn > Cc: Kees Cook > Cc: Serge E. Hallyn > Signed-off-by: Mickaël Salaün Al, Kees, JJ et al, any objections? -- James Morris --1665246916-1320537407-1603863028=:25689--