Merge branch 'v3.10/topic/misc' into linux-linaro-lsk

[firefly-linux-kernel-4.4.55.git] / net / packet / diag.c

diff --git a/net/packet/diag.c b/net/packet/diag.c
index ec8b6e8a80b1dccce33001ada5a62c2e91ebf9ce..674b0a65df6c02eb49d36869c969a1439982ab2e 100644 (file)
--- a/net/packet/diag.c
+++ b/net/packet/diag.c
@@ -127,6 +127,7 @@ static int pdiag_put_fanout(struct packet_sock *po, struct sk_buff *nlskb)
 
 static int sk_diag_fill(struct sock *sk, struct sk_buff *skb,
                        struct packet_diag_req *req,
+                       bool may_report_filterinfo,
                        struct user_namespace *user_ns,
                        u32 portid, u32 seq, u32 flags, int sk_ino)
 {
@@ -171,7 +172,8 @@ static int sk_diag_fill(struct sock *sk, struct sk_buff *skb,
                goto out_nlmsg_trim;
 
        if ((req->pdiag_show & PACKET_SHOW_FILTER) &&
-           sock_diag_put_filterinfo(sk, skb, PACKET_DIAG_FILTER))
+           sock_diag_put_filterinfo(may_report_filterinfo, sk, skb,
+                                    PACKET_DIAG_FILTER))
                goto out_nlmsg_trim;
 
        return nlmsg_end(skb, nlh);
@@ -187,9 +189,11 @@ static int packet_diag_dump(struct sk_buff *skb, struct netlink_callback *cb)
        struct packet_diag_req *req;
        struct net *net;
        struct sock *sk;
+       bool may_report_filterinfo;
 
        net = sock_net(skb->sk);
        req = nlmsg_data(cb->nlh);
+       may_report_filterinfo = netlink_net_capable(cb->skb, CAP_NET_ADMIN);
 
        mutex_lock(&net->packet.sklist_lock);
        sk_for_each(sk, &net->packet.sklist) {
@@ -199,6 +203,7 @@ static int packet_diag_dump(struct sk_buff *skb, struct netlink_callback *cb)
                        goto next;
 
                if (sk_diag_fill(sk, skb, req,
+                                may_report_filterinfo,
                                 sk_user_ns(NETLINK_CB(cb->skb).sk),
                                 NETLINK_CB(cb->skb).portid,
                                 cb->nlh->nlmsg_seq, NLM_F_MULTI,