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

Eric W. Biederman ebiederm at xmission.com
Thu May 24 16:45:06 UTC 2018

Christian Brauner <christian at 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 at brauner.io>
>> Signed-off-by: Seth Forshee <seth.forshee at canonical.com>
>> Acked-by: "Eric W. Biederman" <ebiederm at xmission.com>
>> Acked-by: Serge Hallyn <serge.hallyn at canonical.com>
> Note, I just talked to Serge. This should be Acked-by: Serge Hallyn <serge at hallyn.com>

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


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