Re: [PATCH] net: Use ns_capable_noaudit() when determining net sysctl permissions

[David Miller]

From: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
Date: Fri, 30 Sep 2016 15:24:31 -0700

> From: Tyler Hicks <tyhicks@xxxxxxxxxxxxx>
> 
> The capability check should not be audited since it is only being used
> to determine the inode permissions. A failed check does not indicate a
> violation of security policy but, when an LSM is enabled, a denial audit
> message was being generated.
> 
> The denial audit message caused confusion for some application authors
> because root-running Go applications always triggered the denial. To
> prevent this confusion, the capability check in net_ctl_permissions() is
> switched to the noaudit variant.
> 
> BugLink: https://launchpad.net/bugs/1465724
> 
> Signed-off-by: Tyler Hicks <tyhicks@xxxxxxxxxxxxx>
> Acked-by: Serge E. Hallyn <serge.hallyn@xxxxxxxxxx>
> Signed-off-by: James Morris <james.l.morris@xxxxxxxxxx>
> [dtor: reapplied after e79c6a4fc923 ("net: make net namespace sysctls
> belong to container's owner") accidentally reverted the change.]
> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>

Applied, but please be clear in the future what tree a patch
is targetting, in this case 'net-next'.

You can indicate this in the Subject line "[PATCH net-next]".