linux-hardened/fs/devpts
Eric W. Biederman ec2aa8e8dd userns: Allow the userns root to mount of devpts
- The context in which devpts is mounted has no effect on the creation
  of ptys as the /dev/ptmx interface has been used by unprivileged
  users for many years.

- Only support unprivileged mounts in combination with the newinstance
  option to ensure that mounting of /dev/pts in a user namespace will
  not allow the options of an existing mount of devpts to be modified.

- Create /dev/pts/ptmx as the root user in the user namespace that
  mounts devpts so that it's permissions to be changed.

Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2013-01-26 22:22:21 -08:00
..
inode.c userns: Allow the userns root to mount of devpts 2013-01-26 22:22:21 -08:00
Makefile [PATCH] Generic VFS fallback for security xattrs 2005-09-05 00:05:52 -07:00