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audit: fix incorrect set of audit_sock
NETLINK_CB(skb).sk is the socket of user space process, netlink_unicast in kauditd_send_skb wants the kernel side socket. Since the sk_state of audit netlink socket is not NETLINK_CONNECTED, so the netlink_getsockbyportid doesn't return -ECONNREFUSED. And the socket of userspace process can be released anytime, so the audit_sock may point to invalid socket. this patch sets the audit_sock to the kernel side audit netlink socket. Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com> Acked-by: Eric Paris <eparis@redhat.com> Signed-off-by: Richard Guy Briggs <rgb@redhat.com> Signed-off-by: Eric Paris <eparis@redhat.com>
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@ -821,7 +821,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
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audit_log_config_change("audit_pid", new_pid, audit_pid, 1);
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audit_pid = new_pid;
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audit_nlk_portid = NETLINK_CB(skb).portid;
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audit_sock = NETLINK_CB(skb).sk;
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audit_sock = skb->sk;
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}
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if (s.mask & AUDIT_STATUS_RATE_LIMIT) {
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err = audit_set_rate_limit(s.rate_limit);
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