[PATCH] vsock: use ns_capable_noaudit() on socket create

[James Morris]

On Fri, 23 Oct 2020, Jeff Vander Stoep wrote:

> During __vsock_create() CAP_NET_ADMIN is used to determine if the
> vsock_sock->trusted should be set to true. This value is used later
> for determing if a remote connection should be allowed to connect
> to a restricted VM. Unfortunately, if the caller doesn't have
> CAP_NET_ADMIN, an audit message such as an selinux denial is
> generated even if the caller does not want a trusted socket.
> 
> Logging errors on success is confusing. To avoid this, switch the
> capable(CAP_NET_ADMIN) check to the noaudit version.
> 
> Reported-by: Roman Kiryanov <rkir at google.com>
> https://android-review.googlesource.com/c/device/generic/goldfish/+/1468545/
> Signed-off-by: Jeff Vander Stoep <jeffv at google.com>


Reviewed-by: James Morris <jamorris at linux.microsoft.com>


-- 
James Morris
<jmorris at namei.org>