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Sat, 14 Nov 2026 13:07:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794661656; bh=++ggQwwawp+5fpIFwG3B4KdeRqD55EsEpWBb7WM/wus=; h=From:Date:Subject:References:In-Reply-To:To:Cc; b=ISqS1X59OqSfExtxsOiSjr1wpv0Z7FsnoV/unXwmI2iC0oAeE1CZBnUm2rpLbQChY UlVbIerFORk8Me/5GU683vDPV9tRnmC60uPE2FjWgnWj28UM6HQcw92GM6dJnxpsla EP0uXvdgCUnVRc67H/T1UGcUcSsgA+crZYnm8xvt2wJzIa3kLO4Fm6nJf9PjOQCsNv FSz8gs4T9BgUNPq3f8HpnSRTAiJYTu/lTuBvbPvos8+G1tK0oFpzC1YL2EUS2ey9zn SEWINxYSWGGXxTx69tavZlufHiP8xSylFop7fahaOM11VSh8OruW5Bhgixy7FFv+V+ ODZZedD26ol2g== From: Christian Brauner Date: Sat, 14 Nov 2026 14:01:58 +0100 Subject: [PATCH RFC v2 17/42] securityfs: use fc_init_pseudo() X-Mailing-List: linux-erofs@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Subscribe: , , Precedence: list X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20261114-work-loop-pseudo-v2-17-98639a2286fb@kernel.org> References: <20261114-work-loop-pseudo-v2-0-98639a2286fb@kernel.org> In-Reply-To: <20261114-work-loop-pseudo-v2-0-98639a2286fb@kernel.org> To: linux-fsdevel@vger.kernel.org Cc: Jann Horn , Chris Mason , Josef Bacik , Christoph Hellwig , linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org, Alexander Viro , Jan Kara , linux-scsi@vger.kernel.org, target-devel@vger.kernel.org, driver-core@lists.linux.dev, linux-mm@kvack.org, bpf@vger.kernel.org, linux-security-module@vger.kernel.org, selinux@vger.kernel.org, apparmor@lists.ubuntu.com, linux-nfs@vger.kernel.org, netdev@vger.kernel.org, fuse-devel@lists.linux.dev, linux-efi@vger.kernel.org, xen-devel@lists.xenproject.org, ocfs2-devel@lists.linux.dev, linux-s390@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-usb@vger.kernel.org, Amir Goldstein , linux-erofs@lists.ozlabs.org, linux-kselftest@vger.kernel.org, "Christian Brauner (Amutable)" , Alexander Mikhalitsyn X-Mailer: b4 0.17-dev-ce4c1 X-Developer-Signature: v=1; a=openpgp-sha256; l=1094; i=brauner@kernel.org; h=from:subject:message-id; bh=FF9e/eJ7LhW9MgInOaUNZ5e/JVsIh5RgAJXPuTh0Dg8=; b=owGbwMvMwCU28Zj0gdSKO4sYT6slMWT9iKnMnrLSQPUw2yXBp68+bj4dIDU/cEGPtJHXzrJlj K0vlnZd7ShlYRDjYpAVU2RxaDcJl1vOU7HZKFMDZg4rE8gQBi5OAZhIwjxGhufubMVtdsLcrI83 V3z50Gdhay43R1RMqFp4dcnRaZXmXYwMLWe+THc1O5jMduZaU5272ykVxUsi197p3xOIjl0gESb NCAA= X-Developer-Key: i=brauner@kernel.org; a=openpgp; fpr=4880B8C9BD0E5106FC070F4F7B3C391EFEA93624 X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_PASS, SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 Initialize securityfs as a pseudo filesystem. This raises SB_I_PSEUDO and also SB_I_NOEXEC and SB_I_NODEV. securityfs never holds executables or device nodes. AppArmor puts a .null device node into securityfs but only ever opens it via dentry_open() which doesn't care about SB_I_NODEV. Reviewed-by: Alexander Mikhalitsyn Signed-off-by: Christian Brauner (Amutable) --- security/inode.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/security/inode.c b/security/inode.c index 0804023676741..93997a9f16fcb 100644 --- a/security/inode.c +++ b/security/inode.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include #include @@ -64,6 +65,7 @@ static const struct fs_context_operations securityfs_context_ops = { static int securityfs_init_fs_context(struct fs_context *fc) { + fc_init_pseudo(fc); fc->ops = &securityfs_context_ops; return 0; } -- 2.53.0