userns: Print out socket uids in a user namespace aware fashion.

Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: James Morris <jmorris@namei.org>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: Patrick McHardy <kaber@trash.net>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: Sridhar Samudrala <sri@us.ibm.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 99d0077b56b8..bbdff07eebe1 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -1458,7 +1458,8 @@ static void udp6_sock_seq_show(struct seq_file *seq, struct sock *sp, int bucket
                    sk_wmem_alloc_get(sp),
                    sk_rmem_alloc_get(sp),
                    0, 0L, 0,
-                   sock_i_uid(sp), 0,
+                   from_kuid_munged(seq_user_ns(seq), sock_i_uid(sp)),
+                   0,
                    sock_i_ino(sp),
                    atomic_read(&sp->sk_refcnt), sp,
                    atomic_read(&sp->sk_drops));