[PATCH 5.8 32/99] netfilter: nft_meta: use socket user_ns to retrieve skuid and skgid

From: Greg Kroah-Hartman
Date: Tue Sep 29 2020 - 07:53:27 EST


From: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>

[ Upstream commit 0c92411bb81de9bc516d6924f50289d8d5f880e5 ]

... instead of using init_user_ns.

Fixes: 96518518cc41 ("netfilter: add nftables")
Tested-by: Phil Sutter <phil@xxxxxx>
Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
net/netfilter/nft_meta.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/netfilter/nft_meta.c b/net/netfilter/nft_meta.c
index 7bc6537f3ccb5..b37bd02448d8c 100644
--- 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:
--
2.25.1