diff options
Diffstat (limited to 'drivers/staging/dst/dcore.c')
| -rw-r--r-- | drivers/staging/dst/dcore.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/staging/dst/dcore.c b/drivers/staging/dst/dcore.c index fad25b753042..5546898dbdb4 100644 --- a/drivers/staging/dst/dcore.c +++ b/drivers/staging/dst/dcore.c @@ -846,15 +846,19 @@ static dst_command_func dst_commands[] = { /* * Configuration parser. */ -static void cn_dst_callback(void *data) +static void cn_dst_callback(struct cn_msg *msg, struct netlink_skb_parms *nsp) { struct dst_ctl *ctl; - struct cn_msg *msg = data; int err; struct dst_ctl_ack ack; 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; |