[PATCH] Audit: netlink socket can be auto-bound to pid other than current->pid

[Eric Paris]

On 3/18/08, Eric Paris <eparis at parisplace.org> wrote:
> On 3/18/08, Pavel Emelyanov <xemul at openvz.org> wrote:

>  >  @@ -626,6 +628,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
>  >                                                         sid, 1);
>  >
>  >                         audit_pid = new_pid;
>  >  +                       audit_nlk_pid = NETLINK_CB(skb).pid;
>  >                 }
>  >                 if (status_get->mask & AUDIT_STATUS_RATE_LIMIT)
>  >                         err = audit_set_rate_limit(status_get->rate_limit,

Shouldn't the above be:

if (audit_pid)
    audit_nlk_pid = NETLINK_CB(skb).pid;
else
   audit_nlk_pid = 0;

otherwise I don't see how you can cleanly stop the userspace auditd.....