diff options
Diffstat (limited to 'drivers/connector/cn_proc.c')
| -rw-r--r-- | drivers/connector/cn_proc.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/connector/cn_proc.c b/drivers/connector/cn_proc.c index ff18e41f5b22..094a7107301d 100644 --- a/drivers/connector/cn_proc.c +++ b/drivers/connector/cn_proc.c @@ -331,6 +331,12 @@ static void cn_proc_mcast_ctl(struct cn_msg *msg, if (msg->len != sizeof(*mc_op)) return; + /* Can only change if privileged. */ + if (!capable(CAP_NET_ADMIN)) { + err = EPERM; + goto out; + } + mc_op = (enum proc_cn_mcast_op*)msg->data; switch (*mc_op) { case PROC_CN_MCAST_LISTEN: @@ -343,6 +349,8 @@ static void cn_proc_mcast_ctl(struct cn_msg *msg, err = EINVAL; break; } + +out: cn_proc_ack(err, msg->seq, msg->ack); } |