From: Seth Forshee <seth.forshee-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org> To: "Eric W. Biederman" <ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>, linux-bcache-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, dm-devel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, linux-raid-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-mtd-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, fuse-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org, cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-security-module-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, selinux-+05T5uksL2qpZYMLLGbcSA@public.gmane.org Cc: Alexander Viro <viro-RmSDqhL/yNMiFSDQTTA3OLVCufUGDwFn@public.gmane.org>, Serge Hallyn <serge.hallyn-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>, Richard Weinberger <richard.weinberger-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, Austin S Hemmelgarn <ahferroin7-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, Miklos Szeredi <mszeredi-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>, Pavel Tikhomirov <ptikhomirov-5HdwGun5lf+gSpxsJD1C4w@public.gmane.org>, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Seth Forshee <seth.forshee-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org> Subject: [PATCH v4 00/21] Support fuse mounts in user namespaces Date: Tue, 26 Apr 2016 14:36:13 -0500 [thread overview] Message-ID: <1461699396-33000-1-git-send-email-seth.forshee@canonical.com> (raw) Hi Eric, Here's another update to my patches for mouning with fuse from unpivileged user namespaces. The main change here is a fix for a build failure when fuse is built as a module. As usual the series is also available at: git://git.kernel.org/pub/scm/linux/kernel/git/sforshee/linux.git fuse-userns Changes since v3: * Export current_in_userns() to fix an error when fuse is built as a module. * Add comment explaining the conditions for allowing CAP_CHOWN in s_user_ns to change the owner or group of an inode. * Added acks from Serge. Thanks, Seth --- Andy Lutomirski (1): fs: Treat foreign mounts as nosuid Pavel Tikhomirov (1): fs: fix a posible leak of allocated superblock Seth Forshee (19): fs: Remove check of s_user_ns for existing mounts in fs_fully_visible() fs: Allow sysfs and cgroupfs to share super blocks between user namespaces block_dev: Support checking inode permissions in lookup_bdev() block_dev: Check permissions towards block device inode when mounting selinux: Add support for unprivileged mounts from user namespaces userns: Replace in_userns with current_in_userns Smack: Handle labels consistently in untrusted mounts fs: Check for invalid i_uid in may_follow_link() cred: Reject inodes with invalid ids in set_create_file_as() fs: Refuse uid/gid changes which don't map into s_user_ns fs: Update posix_acl support to handle user namespace mounts fs: Allow superblock owner to change ownership of inodes with unmappable ids fs: Don't remove suid for CAP_FSETID in s_user_ns fs: Allow superblock owner to access do_remount_sb() capabilities: Allow privileged user in s_user_ns to set security.* xattrs fuse: Add support for pid namespaces fuse: Support fuse filesystems outside of init_user_ns fuse: Restrict allow_other to the superblock's namespace or a descendant fuse: Allow user namespace mounts drivers/md/bcache/super.c | 2 +- drivers/md/dm-table.c | 2 +- drivers/mtd/mtdsuper.c | 2 +- fs/attr.c | 73 ++++++++++++++++++++++++++++++++++++----- fs/block_dev.c | 18 ++++++++-- fs/exec.c | 2 +- fs/fuse/cuse.c | 3 +- fs/fuse/dev.c | 26 +++++++++++---- fs/fuse/dir.c | 16 ++++----- fs/fuse/file.c | 22 ++++++++++--- fs/fuse/fuse_i.h | 10 +++++- fs/fuse/inode.c | 40 ++++++++++++++-------- fs/inode.c | 3 +- fs/kernfs/inode.c | 2 ++ fs/namei.c | 2 +- fs/namespace.c | 20 ++++++++--- fs/posix_acl.c | 67 +++++++++++++++++++++++-------------- fs/proc/base.c | 2 ++ fs/proc/generic.c | 3 ++ fs/proc/proc_sysctl.c | 2 ++ fs/quota/quota.c | 2 +- fs/super.c | 7 +++- fs/sysfs/mount.c | 3 +- fs/xattr.c | 19 ++++++++--- include/linux/fs.h | 3 +- include/linux/mount.h | 1 + include/linux/posix_acl_xattr.h | 17 +++++++--- include/linux/uidgid.h | 10 ++++++ include/linux/user_namespace.h | 6 ++-- kernel/cgroup.c | 4 +-- kernel/cred.c | 2 ++ kernel/user_namespace.c | 7 ++-- security/commoncap.c | 22 +++++++++---- security/selinux/hooks.c | 25 +++++++++++++- security/smack/smack_lsm.c | 29 ++++++++++------ 35 files changed, 355 insertions(+), 119 deletions(-)
WARNING: multiple messages have this Message-ID (diff)
From: Seth Forshee <seth.forshee@canonical.com> To: "Eric W. Biederman" <ebiederm@xmission.com>, linux-bcache@vger.kernel.org, dm-devel@redhat.com, linux-raid@vger.kernel.org, linux-mtd@lists.infradead.org, linux-fsdevel@vger.kernel.org, fuse-devel@lists.sourceforge.net, cgroups@vger.kernel.org, linux-security-module@vger.kernel.org, selinux@tycho.nsa.gov Cc: Alexander Viro <viro@zeniv.linux.org.uk>, Serge Hallyn <serge.hallyn@canonical.com>, Richard Weinberger <richard.weinberger@gmail.com>, Austin S Hemmelgarn <ahferroin7@gmail.com>, Miklos Szeredi <mszeredi@redhat.com>, Pavel Tikhomirov <ptikhomirov@virtuozzo.com>, linux-kernel@vger.kernel.org, Seth Forshee <seth.forshee@canonical.com> Subject: [PATCH v4 00/21] Support fuse mounts in user namespaces Date: Tue, 26 Apr 2016 14:36:13 -0500 [thread overview] Message-ID: <1461699396-33000-1-git-send-email-seth.forshee@canonical.com> (raw) Hi Eric, Here's another update to my patches for mouning with fuse from unpivileged user namespaces. The main change here is a fix for a build failure when fuse is built as a module. As usual the series is also available at: git://git.kernel.org/pub/scm/linux/kernel/git/sforshee/linux.git fuse-userns Changes since v3: * Export current_in_userns() to fix an error when fuse is built as a module. * Add comment explaining the conditions for allowing CAP_CHOWN in s_user_ns to change the owner or group of an inode. * Added acks from Serge. Thanks, Seth --- Andy Lutomirski (1): fs: Treat foreign mounts as nosuid Pavel Tikhomirov (1): fs: fix a posible leak of allocated superblock Seth Forshee (19): fs: Remove check of s_user_ns for existing mounts in fs_fully_visible() fs: Allow sysfs and cgroupfs to share super blocks between user namespaces block_dev: Support checking inode permissions in lookup_bdev() block_dev: Check permissions towards block device inode when mounting selinux: Add support for unprivileged mounts from user namespaces userns: Replace in_userns with current_in_userns Smack: Handle labels consistently in untrusted mounts fs: Check for invalid i_uid in may_follow_link() cred: Reject inodes with invalid ids in set_create_file_as() fs: Refuse uid/gid changes which don't map into s_user_ns fs: Update posix_acl support to handle user namespace mounts fs: Allow superblock owner to change ownership of inodes with unmappable ids fs: Don't remove suid for CAP_FSETID in s_user_ns fs: Allow superblock owner to access do_remount_sb() capabilities: Allow privileged user in s_user_ns to set security.* xattrs fuse: Add support for pid namespaces fuse: Support fuse filesystems outside of init_user_ns fuse: Restrict allow_other to the superblock's namespace or a descendant fuse: Allow user namespace mounts drivers/md/bcache/super.c | 2 +- drivers/md/dm-table.c | 2 +- drivers/mtd/mtdsuper.c | 2 +- fs/attr.c | 73 ++++++++++++++++++++++++++++++++++++----- fs/block_dev.c | 18 ++++++++-- fs/exec.c | 2 +- fs/fuse/cuse.c | 3 +- fs/fuse/dev.c | 26 +++++++++++---- fs/fuse/dir.c | 16 ++++----- fs/fuse/file.c | 22 ++++++++++--- fs/fuse/fuse_i.h | 10 +++++- fs/fuse/inode.c | 40 ++++++++++++++-------- fs/inode.c | 3 +- fs/kernfs/inode.c | 2 ++ fs/namei.c | 2 +- fs/namespace.c | 20 ++++++++--- fs/posix_acl.c | 67 +++++++++++++++++++++++-------------- fs/proc/base.c | 2 ++ fs/proc/generic.c | 3 ++ fs/proc/proc_sysctl.c | 2 ++ fs/quota/quota.c | 2 +- fs/super.c | 7 +++- fs/sysfs/mount.c | 3 +- fs/xattr.c | 19 ++++++++--- include/linux/fs.h | 3 +- include/linux/mount.h | 1 + include/linux/posix_acl_xattr.h | 17 +++++++--- include/linux/uidgid.h | 10 ++++++ include/linux/user_namespace.h | 6 ++-- kernel/cgroup.c | 4 +-- kernel/cred.c | 2 ++ kernel/user_namespace.c | 7 ++-- security/commoncap.c | 22 +++++++++---- security/selinux/hooks.c | 25 +++++++++++++- security/smack/smack_lsm.c | 29 ++++++++++------ 35 files changed, 355 insertions(+), 119 deletions(-)
next reply other threads:[~2016-04-26 19:36 UTC|newest] Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-04-26 19:36 Seth Forshee [this message] 2016-04-26 19:36 ` [PATCH v4 00/21] Support fuse mounts in user namespaces Seth Forshee 2016-04-26 19:36 ` [PATCH v4 01/21] fs: fix a posible leak of allocated superblock Seth Forshee 2016-04-26 19:36 ` [PATCH v4 04/21] block_dev: Support checking inode permissions in lookup_bdev() Seth Forshee 2016-04-26 19:36 ` Seth Forshee 2016-04-26 19:36 ` [PATCH v4 05/21] block_dev: Check permissions towards block device inode when mounting Seth Forshee 2016-04-26 19:36 ` [PATCH v4 06/21] fs: Treat foreign mounts as nosuid Seth Forshee 2016-04-26 19:36 ` Seth Forshee 2016-04-26 19:36 ` [PATCH v4 08/21] userns: Replace in_userns with current_in_userns Seth Forshee 2016-04-26 19:36 ` Seth Forshee 2016-04-26 19:36 ` [PATCH v4 09/21] Smack: Handle labels consistently in untrusted mounts Seth Forshee 2016-04-26 19:36 ` [PATCH v4 10/21] fs: Check for invalid i_uid in may_follow_link() Seth Forshee 2016-04-26 19:36 ` Seth Forshee 2016-05-24 15:55 ` Djalal Harouni 2016-04-26 19:36 ` [PATCH v4 11/21] cred: Reject inodes with invalid ids in set_create_file_as() Seth Forshee 2016-04-26 19:36 ` Seth Forshee 2016-04-26 19:36 ` [PATCH v4 15/21] fs: Don't remove suid for CAP_FSETID in s_user_ns Seth Forshee 2016-04-26 19:36 ` Seth Forshee [not found] ` <1461699396-33000-1-git-send-email-seth.forshee-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org> 2016-04-26 19:36 ` [PATCH v4 02/21] fs: Remove check of s_user_ns for existing mounts in fs_fully_visible() Seth Forshee 2016-04-26 19:36 ` Seth Forshee 2016-04-26 19:36 ` [PATCH v4 03/21] fs: Allow sysfs and cgroupfs to share super blocks between user namespaces Seth Forshee 2016-04-26 19:36 ` Seth Forshee 2016-04-26 19:36 ` [PATCH v4 07/21] selinux: Add support for unprivileged mounts from " Seth Forshee 2016-04-26 19:36 ` Seth Forshee 2016-04-26 19:36 ` [PATCH v4 12/21] fs: Refuse uid/gid changes which don't map into s_user_ns Seth Forshee 2016-04-26 19:36 ` Seth Forshee 2016-04-26 19:36 ` [PATCH v4 13/21] fs: Update posix_acl support to handle user namespace mounts Seth Forshee 2016-04-26 19:36 ` Seth Forshee 2016-04-26 19:36 ` [PATCH v4 14/21] fs: Allow superblock owner to change ownership of inodes with unmappable ids Seth Forshee 2016-04-26 19:36 ` Seth Forshee 2016-04-26 19:36 ` [PATCH v4 16/21] fs: Allow superblock owner to access do_remount_sb() Seth Forshee 2016-04-26 19:36 ` Seth Forshee 2016-04-26 19:36 ` [PATCH v4 17/21] capabilities: Allow privileged user in s_user_ns to set security.* xattrs Seth Forshee 2016-04-26 19:36 ` Seth Forshee [not found] ` <1461699396-33000-18-git-send-email-seth.forshee-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org> 2016-04-27 7:22 ` James Morris 2016-04-27 7:22 ` James Morris 2016-04-26 19:36 ` [PATCH v4 18/21] fuse: Add support for pid namespaces Seth Forshee 2016-04-26 19:36 ` Seth Forshee 2016-07-20 2:44 ` Sheng Yang [not found] ` <CA+2rt426_pshAauQizcxkfAq16vmEpB4sJ4genW_ucosH3j=zQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> 2016-07-20 12:52 ` Seth Forshee 2016-07-20 12:52 ` Seth Forshee 2016-07-20 22:28 ` Sheng Yang 2016-07-21 7:25 ` Miklos Szeredi 2016-07-21 7:25 ` Miklos Szeredi 2016-04-26 19:36 ` [PATCH v4 19/21] fuse: Support fuse filesystems outside of init_user_ns Seth Forshee 2016-04-26 19:36 ` Seth Forshee 2016-04-26 19:36 ` [PATCH v4 20/21] fuse: Restrict allow_other to the superblock's namespace or a descendant Seth Forshee 2016-04-26 19:36 ` [PATCH v4 21/21] fuse: Allow user namespace mounts Seth Forshee -- strict thread matches above, loose matches on Subject: below -- 2016-04-26 19:30 [PATCH v4 00/21] Support fuse mounts in user namespaces Seth Forshee 2016-04-26 19:30 ` Seth Forshee
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