Quoting Tyler Hicks (tyhi...@canonical.com):
> 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 <tyhi...@canonical.com>
Acked-by: Serge E. Hallyn <serge.hal...@ubuntu.com>
> ---
> net/sysctl_net.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/net/sysctl_net.c b/net/sysctl_net.c
> index ed98c1f..46a71c7 100644
> --- a/net/sysctl_net.c
> +++ b/net/sysctl_net.c
> @@ -46,7 +46,7 @@ static int net_ctl_permissions(struct ctl_table_header
> *head,
> kgid_t root_gid = make_kgid(net->user_ns, 0);
>
> /* Allow network administrator to have same access as root. */
> - if (ns_capable(net->user_ns, CAP_NET_ADMIN) ||
> + if (ns_capable_noaudit(net->user_ns, CAP_NET_ADMIN) ||
> uid_eq(root_uid, current_euid())) {
> int mode = (table->mode >> 6) & 7;
> return (mode << 6) | (mode << 3) | mode;
> --
> 2.7.4
>
