btrfs: fix race between quota disable and quota assign ioctls

[platform/kernel/linux-rpi.git] / net / ipv6 / seg6.c

diff --git a/net/ipv6/seg6.c b/net/ipv6/seg6.c
index fa6b64c..0c7c6fc 100644 (file)
--- a/net/ipv6/seg6.c
+++ b/net/ipv6/seg6.c
@@ -191,6 +191,11 @@ static int seg6_genl_sethmac(struct sk_buff *skb, struct genl_info *info)
                goto out_unlock;
        }
 
+       if (slen > nla_len(info->attrs[SEG6_ATTR_SECRET])) {
+               err = -EINVAL;
+               goto out_unlock;
+       }
+
        if (hinfo) {
                err = seg6_hmac_info_del(net, hmackeyid);
                if (err)