1 files changed, 2 insertions, 1 deletions

diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 11b25fbf3dd2..9201e3621351 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -2031,7 +2031,8 @@ static int do_setlink(const struct sk_buff *skb,
                 struct sockaddr *sa;
                 int len;
 
-                len = sizeof(sa_family_t) + dev->addr_len;
+                len = sizeof(sa_family_t) + max_t(size_t, dev->addr_len,
+                                                  sizeof(*sa));
                 sa = kmalloc(len, GFP_KERNEL);
                 if (!sa) {
                         err = -ENOMEM;