netfilter: nft_meta: use socket user_ns to retrieve skuid and skgid

... instead of using init_user_ns.

Fixes: 96518518cc41 ("netfilter: add nftables")
Tested-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/net/netfilter/nft_meta.c b/net/netfilter/nft_meta.c
index 7bc6537..b37bd02 100644 (file)
--- a/net/netfilter/nft_meta.c
+++ b/net/netfilter/nft_meta.c
@@ -147,11 +147,11 @@ nft_meta_get_eval_skugid(enum nft_meta_keys key,
 
        switch (key) {
        case NFT_META_SKUID:
-               *dest = from_kuid_munged(&init_user_ns,
+               *dest = from_kuid_munged(sock_net(sk)->user_ns,
                                         sock->file->f_cred->fsuid);
                break;
        case NFT_META_SKGID:
-               *dest = from_kgid_munged(&init_user_ns,
+               *dest = from_kgid_munged(sock_net(sk)->user_ns,
                                         sock->file->f_cred->fsgid);
                break;
        default: