Re: [REVIEW][PATCH 4/6] fs: Allow superblock owner to access do_remount_sb()

Eric W. Biederman
2018-05-24T16:45:32Z

Christian Brauner <christian@brauner.io> writes:

> On Wed, May 23, 2018 at 06:25:36PM -0500, Eric W. Biederman wrote:
>> Superblock level remounts are currently restricted to global
>> CAP_SYS_ADMIN, as is the path for changing the root mount to
>> read only on umount. Loosen both of these permission checks to
>> also allow CAP_SYS_ADMIN in any namespace which is privileged
>> towards the userns which originally mounted the filesystem.
>
> Acked-by: Christian Brauner <christian@brauner.io>
>
>>
>> Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
>> Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
>> Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
>
> Note, I just talked to Serge. This should be Acked-by: Serge Hallyn <serge@hallyn.com>

Now you know how long these patches have been sitting waiting to get
merged.

Eric