From: Christian Brauner <christian.brauner@ubuntu.com> To: Alexander Viro <viro@zeniv.linux.org.uk>, Christoph Hellwig <hch@infradead.org>, linux-fsdevel@vger.kernel.org Cc: Andy Lutomirski <luto@kernel.org>, Mimi Zohar <zohar@linux.ibm.com>, James Bottomley <James.Bottomley@hansenpartnership.com>, Andreas Dilger <adilger.kernel@dilger.ca>, containers@lists.linux-foundation.org, Christoph Hellwig <hch@lst.de>, Tycho Andersen <tycho@tycho.ws>, Paul Moore <paul@paul-moore.com>, Jonathan Corbet <corbet@lwn.net>, smbarber@chromium.org, linux-ext4@vger.kernel.org, Mrunal Patel <mpatel@redhat.com>, Kees Cook <keescook@chromium.org>, Arnd Bergmann <arnd@arndb.de>, selinux@vger.kernel.org, Josh Triplett <josh@joshtriplett.org>, Seth Forshee <seth.forshee@canonical.com>, Aleksa Sarai <cyphar@cyphar.com>, Lennart Poettering <lennart@poettering.net>, OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>, Geoffrey Thomas <geofft@ldpreload.com>, David Howells <dhowells@redhat.com>, John Johansen <john.johansen@canonical.com>, Theodore Tso <tytso@mit.edu>, Dmitry Kasatkin <dmitry.kasatkin@gmail.com>, Stephen Smalley <stephen.smalley.work@gmail.com>, linux-security-module@vger.kernel.org, "Eric W. Biederman" <ebiederm@xmission.com>, linux-api@vger.kernel.org, Casey Schaufler <casey@schaufler-ca.com>, Alban Crequy <alban@kinvolk.io>, linux-integrity@vger.kernel.org, Todd Kjos <tkjos@google.com> Subject: [PATCH v4 09/40] mount: attach mappings to mounts Date: Fri, 4 Dec 2020 00:57:05 +0100 [thread overview] Message-ID: <20201203235736.3528991-10-christian.brauner@ubuntu.com> (raw) In-Reply-To: <20201203235736.3528991-1-christian.brauner@ubuntu.com> In order to support per-mount idmappings vfsmounts will be marked with user namespaces. The idmapping associated with that user namespace will be used to map the ids of vfs objects when they are accessed through that mount. By default all vfsmounts are marked with the initial user namespace. The initial user namespace is used to indicate that a mount is not idmapped. All operations behave as before. Based on prior discussions we want to attach the whole user namespace and not just a dedicated idmapping struct. This allows us to reuse all the helpers that already exist for dealing with idmappings instead of introducing a whole new range of helpers. In addition, if we decide in the future that we are confident enough to enable unprivileged users to setup idmapped mounts we can allow the user namespace an already idmapped mounts has been marked with to be replaced with another one. The permission checking would then take into account whether the caller is privileged in the user namespace the mount is currently marked with and that is about to be replaced with another one. For now, we will enforce in later patches that once a mount has been idmapped it can't be remapped. This keeps permission checking and life-cycle management simple, especially since users can always create a new mount with a different idmapping anyway. The idea to attach user namespaces to vfsmounts has been floated around in various forms at Linux Plumbers in ~2018 with the original idea tracing back to a discussion during a conference in St. Petersburg between Christoph, Tycho, and myself. Cc: Christoph Hellwig <hch@lst.de> Cc: David Howells <dhowells@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: linux-fsdevel@vger.kernel.org Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com> --- /* v2 */ patch introduced - Christoph Hellwig <hch@lst.de>: - Split internal implementation into separate patch and move syscall implementation later. /* v3 */ - David Howells <dhowells@redhat.com>: - Remove MNT_IDMAPPED flag. We can simply check the pointer and use smp_load_acquire() in later patches. - Tycho Andersen <tycho@tycho.pizza>: - Use READ_ONCE() in mnt_user_ns(). /* v4 */ - Serge Hallyn <serge@hallyn.com>: - Use "mnt_userns" to refer to a vfsmount's userns everywhere to make terminology consistent. - Christoph Hellwig <hch@lst.de>: - Drop the READ_ONCE() from this patch. At this point in the series we don't allowing changing the vfsmount's userns. The infra to do that is only introduced as almost the last patch in the series and there we immediately use smp_load_acquire() and smp_store_release(). --- fs/namespace.c | 9 +++++++++ include/linux/fs.h | 1 + include/linux/mount.h | 6 ++++++ 3 files changed, 16 insertions(+) diff --git a/fs/namespace.c b/fs/namespace.c index 51cfacfb3f82..ac55f5c8b2de 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -228,6 +228,7 @@ static struct mount *alloc_vfsmnt(const char *name) INIT_HLIST_NODE(&mnt->mnt_mp_list); INIT_LIST_HEAD(&mnt->mnt_umounting); INIT_HLIST_HEAD(&mnt->mnt_stuck_children); + mnt->mnt.mnt_userns = &init_user_ns; } return mnt; @@ -567,6 +568,11 @@ int sb_prepare_remount_readonly(struct super_block *sb) static void free_vfsmnt(struct mount *mnt) { + struct user_namespace *mnt_userns; + + mnt_userns = mnt_user_ns(&mnt->mnt); + if (mnt_userns != &init_user_ns) + put_user_ns(mnt_userns); kfree_const(mnt->mnt_devname); #ifdef CONFIG_SMP free_percpu(mnt->mnt_pcp); @@ -1075,6 +1081,9 @@ static struct mount *clone_mnt(struct mount *old, struct dentry *root, mnt->mnt.mnt_flags &= ~(MNT_WRITE_HOLD|MNT_MARKED|MNT_INTERNAL); atomic_inc(&sb->s_active); + mnt->mnt.mnt_userns = mnt_user_ns(&old->mnt); + if (mnt->mnt.mnt_userns != &init_user_ns) + mnt->mnt.mnt_userns = get_user_ns(mnt->mnt.mnt_userns); mnt->mnt.mnt_sb = sb; mnt->mnt.mnt_root = dget(root); mnt->mnt_mountpoint = mnt->mnt.mnt_root; diff --git a/include/linux/fs.h b/include/linux/fs.h index 0c820837d240..b4935793605f 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2280,6 +2280,7 @@ struct file_system_type { #define FS_HAS_SUBTYPE 4 #define FS_USERNS_MOUNT 8 /* Can be mounted by userns root */ #define FS_DISALLOW_NOTIFY_PERM 16 /* Disable fanotify permission events */ +#define FS_ALLOW_IDMAP 32 /* FS has been updated to handle vfs idmappings. */ #define FS_THP_SUPPORT 8192 /* Remove once all fs converted */ #define FS_RENAME_DOES_D_MOVE 32768 /* FS will handle d_move() during rename() internally. */ int (*init_fs_context)(struct fs_context *); diff --git a/include/linux/mount.h b/include/linux/mount.h index aaf343b38671..52de25e08319 100644 --- a/include/linux/mount.h +++ b/include/linux/mount.h @@ -72,8 +72,14 @@ struct vfsmount { struct dentry *mnt_root; /* root of the mounted tree */ struct super_block *mnt_sb; /* pointer to superblock */ int mnt_flags; + struct user_namespace *mnt_userns; } __randomize_layout; +static inline struct user_namespace *mnt_user_ns(const struct vfsmount *mnt) +{ + return mnt->mnt_userns; +} + struct file; /* forward dec */ struct path; -- 2.29.2 _______________________________________________ Containers mailing list Containers@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/containers
WARNING: multiple messages have this Message-ID (diff)
From: Christian Brauner <christian.brauner@ubuntu.com> To: Alexander Viro <viro@zeniv.linux.org.uk>, Christoph Hellwig <hch@infradead.org>, linux-fsdevel@vger.kernel.org Cc: "John Johansen" <john.johansen@canonical.com>, "James Morris" <jmorris@namei.org>, "Mimi Zohar" <zohar@linux.ibm.com>, "Dmitry Kasatkin" <dmitry.kasatkin@gmail.com>, "Stephen Smalley" <stephen.smalley.work@gmail.com>, "Casey Schaufler" <casey@schaufler-ca.com>, "Arnd Bergmann" <arnd@arndb.de>, "Andreas Dilger" <adilger.kernel@dilger.ca>, "OGAWA Hirofumi" <hirofumi@mail.parknet.co.jp>, "Geoffrey Thomas" <geofft@ldpreload.com>, "Mrunal Patel" <mpatel@redhat.com>, "Josh Triplett" <josh@joshtriplett.org>, "Andy Lutomirski" <luto@kernel.org>, "Theodore Tso" <tytso@mit.edu>, "Alban Crequy" <alban@kinvolk.io>, "Tycho Andersen" <tycho@tycho.ws>, "David Howells" <dhowells@redhat.com>, "James Bottomley" <James.Bottomley@hansenpartnership.com>, "Seth Forshee" <seth.forshee@canonical.com>, "Stéphane Graber" <stgraber@ubuntu.com>, "Aleksa Sarai" <cyphar@cyphar.com>, "Lennart Poettering" <lennart@poettering.net>, "Eric W. Biederman" <ebiederm@xmission.com>, smbarber@chromium.org, "Phil Estes" <estesp@gmail.com>, "Serge Hallyn" <serge@hallyn.com>, "Kees Cook" <keescook@chromium.org>, "Todd Kjos" <tkjos@google.com>, "Paul Moore" <paul@paul-moore.com>, "Jonathan Corbet" <corbet@lwn.net>, containers@lists.linux-foundation.org, linux-security-module@vger.kernel.org, linux-api@vger.kernel.org, linux-ext4@vger.kernel.org, linux-integrity@vger.kernel.org, selinux@vger.kernel.org, "Christian Brauner" <christian.brauner@ubuntu.com>, "Christoph Hellwig" <hch@lst.de> Subject: [PATCH v4 09/40] mount: attach mappings to mounts Date: Fri, 4 Dec 2020 00:57:05 +0100 [thread overview] Message-ID: <20201203235736.3528991-10-christian.brauner@ubuntu.com> (raw) In-Reply-To: <20201203235736.3528991-1-christian.brauner@ubuntu.com> In order to support per-mount idmappings vfsmounts will be marked with user namespaces. The idmapping associated with that user namespace will be used to map the ids of vfs objects when they are accessed through that mount. By default all vfsmounts are marked with the initial user namespace. The initial user namespace is used to indicate that a mount is not idmapped. All operations behave as before. Based on prior discussions we want to attach the whole user namespace and not just a dedicated idmapping struct. This allows us to reuse all the helpers that already exist for dealing with idmappings instead of introducing a whole new range of helpers. In addition, if we decide in the future that we are confident enough to enable unprivileged users to setup idmapped mounts we can allow the user namespace an already idmapped mounts has been marked with to be replaced with another one. The permission checking would then take into account whether the caller is privileged in the user namespace the mount is currently marked with and that is about to be replaced with another one. For now, we will enforce in later patches that once a mount has been idmapped it can't be remapped. This keeps permission checking and life-cycle management simple, especially since users can always create a new mount with a different idmapping anyway. The idea to attach user namespaces to vfsmounts has been floated around in various forms at Linux Plumbers in ~2018 with the original idea tracing back to a discussion during a conference in St. Petersburg between Christoph, Tycho, and myself. Cc: Christoph Hellwig <hch@lst.de> Cc: David Howells <dhowells@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: linux-fsdevel@vger.kernel.org Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com> --- /* v2 */ patch introduced - Christoph Hellwig <hch@lst.de>: - Split internal implementation into separate patch and move syscall implementation later. /* v3 */ - David Howells <dhowells@redhat.com>: - Remove MNT_IDMAPPED flag. We can simply check the pointer and use smp_load_acquire() in later patches. - Tycho Andersen <tycho@tycho.pizza>: - Use READ_ONCE() in mnt_user_ns(). /* v4 */ - Serge Hallyn <serge@hallyn.com>: - Use "mnt_userns" to refer to a vfsmount's userns everywhere to make terminology consistent. - Christoph Hellwig <hch@lst.de>: - Drop the READ_ONCE() from this patch. At this point in the series we don't allowing changing the vfsmount's userns. The infra to do that is only introduced as almost the last patch in the series and there we immediately use smp_load_acquire() and smp_store_release(). --- fs/namespace.c | 9 +++++++++ include/linux/fs.h | 1 + include/linux/mount.h | 6 ++++++ 3 files changed, 16 insertions(+) diff --git a/fs/namespace.c b/fs/namespace.c index 51cfacfb3f82..ac55f5c8b2de 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -228,6 +228,7 @@ static struct mount *alloc_vfsmnt(const char *name) INIT_HLIST_NODE(&mnt->mnt_mp_list); INIT_LIST_HEAD(&mnt->mnt_umounting); INIT_HLIST_HEAD(&mnt->mnt_stuck_children); + mnt->mnt.mnt_userns = &init_user_ns; } return mnt; @@ -567,6 +568,11 @@ int sb_prepare_remount_readonly(struct super_block *sb) static void free_vfsmnt(struct mount *mnt) { + struct user_namespace *mnt_userns; + + mnt_userns = mnt_user_ns(&mnt->mnt); + if (mnt_userns != &init_user_ns) + put_user_ns(mnt_userns); kfree_const(mnt->mnt_devname); #ifdef CONFIG_SMP free_percpu(mnt->mnt_pcp); @@ -1075,6 +1081,9 @@ static struct mount *clone_mnt(struct mount *old, struct dentry *root, mnt->mnt.mnt_flags &= ~(MNT_WRITE_HOLD|MNT_MARKED|MNT_INTERNAL); atomic_inc(&sb->s_active); + mnt->mnt.mnt_userns = mnt_user_ns(&old->mnt); + if (mnt->mnt.mnt_userns != &init_user_ns) + mnt->mnt.mnt_userns = get_user_ns(mnt->mnt.mnt_userns); mnt->mnt.mnt_sb = sb; mnt->mnt.mnt_root = dget(root); mnt->mnt_mountpoint = mnt->mnt.mnt_root; diff --git a/include/linux/fs.h b/include/linux/fs.h index 0c820837d240..b4935793605f 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2280,6 +2280,7 @@ struct file_system_type { #define FS_HAS_SUBTYPE 4 #define FS_USERNS_MOUNT 8 /* Can be mounted by userns root */ #define FS_DISALLOW_NOTIFY_PERM 16 /* Disable fanotify permission events */ +#define FS_ALLOW_IDMAP 32 /* FS has been updated to handle vfs idmappings. */ #define FS_THP_SUPPORT 8192 /* Remove once all fs converted */ #define FS_RENAME_DOES_D_MOVE 32768 /* FS will handle d_move() during rename() internally. */ int (*init_fs_context)(struct fs_context *); diff --git a/include/linux/mount.h b/include/linux/mount.h index aaf343b38671..52de25e08319 100644 --- a/include/linux/mount.h +++ b/include/linux/mount.h @@ -72,8 +72,14 @@ struct vfsmount { struct dentry *mnt_root; /* root of the mounted tree */ struct super_block *mnt_sb; /* pointer to superblock */ int mnt_flags; + struct user_namespace *mnt_userns; } __randomize_layout; +static inline struct user_namespace *mnt_user_ns(const struct vfsmount *mnt) +{ + return mnt->mnt_userns; +} + struct file; /* forward dec */ struct path; -- 2.29.2
next prev parent reply other threads:[~2020-12-04 0:02 UTC|newest] Thread overview: 98+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-12-03 23:56 [PATCH v4 00/40] idmapped mounts Christian Brauner 2020-12-03 23:56 ` Christian Brauner 2020-12-03 23:56 ` [PATCH v4 01/40] namespace: take lock_mount_hash() directly when changing flags Christian Brauner 2020-12-03 23:56 ` Christian Brauner 2020-12-03 23:56 ` [PATCH v4 02/40] mount: make {lock,unlock}_mount_hash() static Christian Brauner 2020-12-03 23:56 ` Christian Brauner 2020-12-03 23:56 ` [PATCH v4 03/40] namespace: only take read lock in do_reconfigure_mnt() Christian Brauner 2020-12-03 23:56 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 04/40] fs: split out functions to hold writers Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-07 17:08 ` Christoph Hellwig 2020-12-07 17:08 ` Christoph Hellwig 2020-12-03 23:57 ` [PATCH v4 05/40] fs: add attr_flags_to_mnt_flags helper Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-07 17:10 ` Christoph Hellwig 2020-12-07 17:10 ` Christoph Hellwig 2020-12-08 10:07 ` Christian Brauner 2020-12-08 10:07 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 06/40] fs: add mount_setattr() Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-07 17:14 ` Christoph Hellwig 2020-12-07 17:14 ` Christoph Hellwig 2020-12-08 10:37 ` Christian Brauner 2020-12-08 10:37 ` Christian Brauner 2020-12-08 15:05 ` Christoph Hellwig 2020-12-08 15:05 ` Christoph Hellwig 2020-12-08 15:22 ` Christian Brauner 2020-12-08 15:22 ` Christian Brauner 2020-12-08 15:26 ` Christian Brauner 2020-12-08 15:26 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 07/40] tests: add mount_setattr() selftests Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 08/40] fs: add id translation helpers Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-03 23:57 ` Christian Brauner [this message] 2020-12-03 23:57 ` [PATCH v4 09/40] mount: attach mappings to mounts Christian Brauner 2020-12-03 23:57 ` [PATCH v4 10/40] capability: handle idmapped mounts Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 11/40] namei: make permission helpers idmapped mount aware Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 12/40] inode: make init and " Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 13/40] attr: handle idmapped mounts Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 14/40] acl: " Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 15/40] xattr: " Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 16/40] commoncap: " Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 17/40] stat: " Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 18/40] namei: handle idmapped mounts in may_*() helpers Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 19/40] namei: introduce struct renamedata Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 20/40] namei: prepare for idmapped mounts Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 21/40] open: handle idmapped mounts in do_truncate() Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 22/40] open: handle idmapped mounts Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 23/40] af_unix: " Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 24/40] utimes: " Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 25/40] fcntl: " Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 26/40] notify: " Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 27/40] init: " Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 28/40] ioctl: " Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 29/40] would_dump: " Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 30/40] exec: " Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 31/40] fs: make helpers idmap mount aware Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 32/40] apparmor: handle idmapped mounts Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 33/40] ima: " Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 34/40] fat: " Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 35/40] ext4: support " Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 36/40] ecryptfs: do not mount on top of " Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 37/40] overlayfs: " Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 38/40] fs: introduce MOUNT_ATTR_IDMAP Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 39/40] tests: extend mount_setattr tests Christian Brauner 2020-12-03 23:57 ` Christian Brauner 2020-12-03 23:57 ` [PATCH v4 40/40] generic/618: add fstests for idmapped mounts Christian Brauner 2020-12-03 23:57 ` Christian Brauner
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20201203235736.3528991-10-christian.brauner@ubuntu.com \ --to=christian.brauner@ubuntu.com \ --cc=James.Bottomley@hansenpartnership.com \ --cc=adilger.kernel@dilger.ca \ --cc=alban@kinvolk.io \ --cc=arnd@arndb.de \ --cc=casey@schaufler-ca.com \ --cc=containers@lists.linux-foundation.org \ --cc=corbet@lwn.net \ --cc=cyphar@cyphar.com \ --cc=dhowells@redhat.com \ --cc=dmitry.kasatkin@gmail.com \ --cc=ebiederm@xmission.com \ --cc=geofft@ldpreload.com \ --cc=hch@infradead.org \ --cc=hch@lst.de \ --cc=hirofumi@mail.parknet.co.jp \ --cc=john.johansen@canonical.com \ --cc=josh@joshtriplett.org \ --cc=keescook@chromium.org \ --cc=lennart@poettering.net \ --cc=linux-api@vger.kernel.org \ --cc=linux-ext4@vger.kernel.org \ --cc=linux-fsdevel@vger.kernel.org \ --cc=linux-integrity@vger.kernel.org \ --cc=linux-security-module@vger.kernel.org \ --cc=luto@kernel.org \ --cc=mpatel@redhat.com \ --cc=paul@paul-moore.com \ --cc=selinux@vger.kernel.org \ --cc=seth.forshee@canonical.com \ --cc=smbarber@chromium.org \ --cc=stephen.smalley.work@gmail.com \ --cc=tkjos@google.com \ --cc=tycho@tycho.ws \ --cc=tytso@mit.edu \ --cc=viro@zeniv.linux.org.uk \ --cc=zohar@linux.ibm.com \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.