pohmelfs/connector: Disallow unpliviged users to configure pohmelfs

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/staging/pohmelfs/config.c b/drivers/staging/pohmelfs/config.c
index c9162b3..5d04bf5 100644 (file)
--- a/drivers/staging/pohmelfs/config.c
+++ b/drivers/staging/pohmelfs/config.c
@@ -531,6 +531,9 @@ static void pohmelfs_cn_callback(struct cn_msg *msg, struct netlink_skb_parms *n
 {
        int err;
 
+       if (!cap_raised(nsp->eff_cap, CAP_SYS_ADMIN))
+               return;
+
        switch (msg->flags) {
                case POHMELFS_FLAGS_ADD:
                case POHMELFS_FLAGS_DEL: