• Serge Hallyn's avatar
    user namespace: usb: make usb urbs user namespace aware (v2) · d178bc3a
    Serge Hallyn authored
    Add to the dev_state and alloc_async structures the user namespace
    corresponding to the uid and euid.  Pass these to kill_pid_info_as_uid(),
    which can then implement a proper, user-namespace-aware uid check.
    
    Changelog:
    Sep 20: Per Oleg's suggestion: Instead of caching and passing user namespace,
    	uid, and euid each separately, pass a struct cred.
    Sep 26: Address Alan Stern's comments: don't define a struct cred at
    	usbdev_open(), and take and put a cred at async_completed() to
    	ensure it lasts for the duration of kill_pid_info_as_cred().
    Signed-off-by: default avatarSerge Hallyn <serge.hallyn@canonical.com>
    Cc: Oleg Nesterov <oleg@redhat.com>
    Cc: "Eric W. Biederman" <ebiederm@xmission.com>
    Cc: Tejun Heo <tj@kernel.org>
    Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
    d178bc3a
devio.c 51.5 KB