[PATCH 0/5] User namespace mount updates

[Seth Forshee]

Hi Eric,

Here's a batch of updates for the unprivileged user namespace mount
patches based on your feedback. I think everything you mentioned should
be addressed here.

These are now based on your for-testing branch.

Updates include:
 - Fix for incorrect use of flags argument in mount_mtd.
 - Eliminate lookup_bdev_perm and instead add an access mode argument to
   lookup_bdev.
 - Use __inode_permission instead of inode_permission when checking for
   rights towards a block device inode.
 - Add a patch replacing in_user_ns with current_in_user_ns.
 - Add a patch to handle Smack security labels consistently.

Thanks,
Seth

Andy Lutomirski (1):
  fs: Treat foreign mounts as nosuid

Seth Forshee (4):
  fs: Verify access of user towards block device file 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

 drivers/md/bcache/super.c      |  2 +-
 drivers/md/dm-table.c          |  2 +-
 drivers/mtd/mtdsuper.c         |  6 +++++-
 fs/block_dev.c                 | 18 +++++++++++++++---
 fs/exec.c                      |  2 +-
 fs/namespace.c                 | 13 +++++++++++++
 fs/quota/quota.c               |  2 +-
 include/linux/fs.h             |  2 +-
 include/linux/mount.h          |  1 +
 include/linux/user_namespace.h |  6 ++----
 kernel/user_namespace.c        |  6 +++---
 security/commoncap.c           |  4 ++--
 security/selinux/hooks.c       | 25 ++++++++++++++++++++++++-
 security/smack/smack_lsm.c     | 28 ++++++++++++++++++----------
 14 files changed, 88 insertions(+), 29 deletions(-)

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