1 files changed, 3 insertions, 0 deletions

diff --git a/net/can/bcm.c b/net/can/bcm.c
index 9d5e8accfab1..092dc88a7c64 100644
--- a/net/can/bcm.c
+++ b/net/can/bcm.c
@@ -1256,6 +1256,9 @@ static int bcm_sendmsg(struct kiocb *iocb, struct socket *sock,
                 struct sockaddr_can *addr =
                         (struct sockaddr_can *)msg->msg_name;
 
+                if (msg->msg_namelen < sizeof(*addr))
+                        return -EINVAL;
+
                 if (addr->can_family != AF_CAN)
                         return -EINVAL;