1 files changed, 3 insertions, 0 deletions

diff --git a/net/can/raw.c b/net/can/raw.c
index 69877b8e7e9c..3e46ee36a1aa 100644
--- a/net/can/raw.c
+++ b/net/can/raw.c
@@ -632,6 +632,9 @@ static int raw_sendmsg(struct kiocb *iocb, struct socket *sock,
         } else
                 ifindex = ro->ifindex;
 
+        if (size != sizeof(struct can_frame))
+                return -EINVAL;
+
         dev = dev_get_by_index(&init_net, ifindex);
         if (!dev)
                 return -ENXIO;