diff --git a/include/uapi/linux/can.h b/include/uapi/linux/can.h
index 9692cda5f8fc2fe7789de59f93281cf4c0bd2a5e..c48d93a28d1acbb905b5d62cb2e8436c20ec8c7e 100644
--- a/include/uapi/linux/can.h
+++ b/include/uapi/linux/can.h
@@ -196,5 +196,6 @@ struct can_filter {
 };
 
 #define CAN_INV_FILTER 0x20000000U /* to be set in can_filter.can_id */
+#define CAN_RAW_FILTER_MAX 512 /* maximum number of can_filter set via setsockopt() */
 
 #endif /* !_UAPI_CAN_H */
diff --git a/net/can/raw.c b/net/can/raw.c
index 972c187d40abb0f54a30a076e60359a5f1878a0c..b075f028d7e23958e9433a4b19f4475ad930b547 100644
--- a/net/can/raw.c
+++ b/net/can/raw.c
@@ -499,6 +499,9 @@ static int raw_setsockopt(struct socket *sock, int level, int optname,
 		if (optlen % sizeof(struct can_filter) != 0)
 			return -EINVAL;
 
+		if (optlen > CAN_RAW_FILTER_MAX * sizeof(struct can_filter))
+			return -EINVAL;
+
 		count = optlen / sizeof(struct can_filter);
 
 		if (count > 1) {