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t=1794302253; bh=is6/oCzWlYT0dy5hhdJaeL3p/9SOujmsKB1o+eMmEtY=; h=From:Date:Subject:References:In-Reply-To:To:Cc; b=ZazHNZp9OYbLw5mOghlT7zT71BJtkKFeTeYcEEEKzzDfsXiViM/CU7Z8cqPuBHNmQ e9Qsk2tN4gY4RJ80Z+UUxi9qzyvuPPNm8ps8zOEOpz7rLmAYJ6n7ctVBBlUT6hriyl KooXsFO8OBY87qPing6B2f+iBZiovte1ZeeWe7o4pK+dmJB9iSNS/HlIBxl0Amx46b gPvb9WPdxrBx6TvqW3glbSTH9bY6q5ObY70N6N4qYVjM2ZhX+jdcQ4SzRPts34JoOG w3dAqOx+U6EfK5Jcx8iiCprAhcZ+V/vGt/hia8DQYE5ftDBbr0PZ3CyxQdoj/Bvs3n V978BIl4Z9EIQ== From: Christian Brauner Date: Tue, 10 Nov 2026 10:14:30 +0100 Subject: [PATCH RFC 14/41] debugfs: use fc_init_pseudo() X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20261110-work-loop-pseudo-v1-14-4c998976c6c7@kernel.org> References: <20261110-work-loop-pseudo-v1-0-4c998976c6c7@kernel.org> In-Reply-To: <20261110-work-loop-pseudo-v1-0-4c998976c6c7@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)" X-Mailer: b4 0.17-dev-ce4c1 X-Developer-Signature: v=1; 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This raises SB_I_PSEUDO and also SB_I_NOEXEC and SB_I_NODEV. debugfs never holds executables or device nodes. SB_I_NOEXEC also refuses PROT_EXEC mappings. The debugfs files that can be mapped, kcov, relay channels and powernv's memtrace, map data. Signed-off-by: Christian Brauner (Amutable) --- fs/debugfs/inode.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c index b4915551ad31..f163f0bc5703 100644 --- a/fs/debugfs/inode.c +++ b/fs/debugfs/inode.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include #include @@ -317,6 +318,7 @@ static int debugfs_init_fs_context(struct fs_context *fc) fsi->mode = DEBUGFS_DEFAULT_MODE; fc->s_fs_info = fsi; + fc_init_pseudo(fc); fc->ops = &debugfs_context_ops; return 0; } -- 2.53.0