diff options
| author | Mahesh Bandewar <maheshb@google.com> | 2023-01-04 18:28:42 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-01-06 12:41:52 +0000 |
| commit | 6b754d7bd007c5f68fbb2d9abd5c00d253b033d0 (patch) | |
| tree | a13913f2626350b96a9aa478e66df1a3f8c77f08 | |
| parent | 3d759e9e24c38758abc19a4f5e1872a6460d5745 (diff) | |
sysctl: expose all net/core sysctls inside netns
All were not visible to the non-priv users inside netns. However,
with 4ecb90090c84 ("sysctl: allow override of /proc/sys/net with
CAP_NET_ADMIN"), these vars are protected from getting modified.
A proc with capable(CAP_NET_ADMIN) can change the values so
not having them visible inside netns is just causing nuisance to
process that check certain values (e.g. net.core.somaxconn) and
see different behavior in root-netns vs. other-netns
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: Mahesh Bandewar <maheshb@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/core/sysctl_net_core.c | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c index 5b1ce656baa1..e7b98162c632 100644 --- a/net/core/sysctl_net_core.c +++ b/net/core/sysctl_net_core.c @@ -643,11 +643,6 @@ static __net_init int sysctl_core_net_init(struct net *net) for (tmp = tbl; tmp->procname; tmp++) tmp->data += (char *)net - (char *)&init_net; - - /* Don't export any sysctls to unprivileged users */ - if (net->user_ns != &init_user_ns) { - tbl[0].procname = NULL; - } } net->core.sysctl_hdr = register_net_sysctl(net, "net/core", tbl); |