[Devel] [PATCH 1/2 RH7] netlink: protect NETLINK_REPAIR2

[Andrey Zhadchenko]

Prevent using netlink repair mode from containers.

Signed-off-by: Andrey Zhadchenko <andrey.zhadchenko at virtuozzo.com>
---
 net/netlink/af_netlink.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 7b3de33..dff6e5f 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -1529,6 +1529,11 @@ static int netlink_setsockopt(struct socket *sock, int level, int optname,
 
 	switch (optname) {
 	case NETLINK_REPAIR2:
+#ifdef CONFIG_VE
+		if (!ve_is_super(get_exec_env()) &&
+		    !get_exec_env()->is_pseudosuper)
+			return -ENOPROTOOPT;
+#endif
 		if (val)
 			nlk->flags |= NETLINK_F_REPAIR;
 		else
-- 
1.8.3.1