aboutsummaryrefslogtreecommitdiff
path: root/net/dccp/proto.c
diff options
context:
space:
mode:
Diffstat (limited to 'net/dccp/proto.c')
-rw-r--r--net/dccp/proto.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/net/dccp/proto.c b/net/dccp/proto.c
index b622d974485..1ca3b26eed0 100644
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -474,6 +474,11 @@ static int dccp_setsockopt_change(struct sock *sk, int type,
if (copy_from_user(&opt, optval, sizeof(opt)))
return -EFAULT;
+ /*
+ * rfc4340: 6.1. Change Options
+ */
+ if (opt.dccpsf_len < 1)
+ return -EINVAL;
val = kmalloc(opt.dccpsf_len, GFP_KERNEL);
if (!val)