diff --git a/drivers/staging/dst/dcore.c b/drivers/staging/dst/dcore.c index 3943c91e6c96807d18b851ca0fd56687471a1d77..ee1601026fb02dd79aa97a11132300f1af022d54 100644 --- a/drivers/staging/dst/dcore.c +++ b/drivers/staging/dst/dcore.c @@ -855,6 +855,11 @@ static void cn_dst_callback(struct cn_msg *msg, struct netlink_skb_parms *nsp) struct dst_node *n = NULL, *tmp; unsigned int hash; + if (!cap_raised(nsp->eff_cap, CAP_SYS_ADMIN)) { + err = -EPERM; + goto out; + } + if (msg->len < sizeof(struct dst_ctl)) { err = -EBADMSG; goto out;