From: Marc Kleine-Budde <mkl@pengutronix.de>
Date: Sun, 30 Jul 2017 21:51:01 +0000 (+0200)
Subject: can: raw: raw_bind(): bail out if can_family is not AF_CAN
X-Git-Tag: Ubuntu-5.2.0-15.16~5092^2~156^2~1
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=adb552c31915415fdb374172085f174f459727ea;p=mirror_ubuntu-eoan-kernel.git

can: raw: raw_bind(): bail out if can_family is not AF_CAN

Until now CAN raw's bind() doesn't check if the can_familiy in the
struct sockaddr_can is set to AF_CAN. This patch adds the missing check.

Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---

diff --git a/net/can/raw.c b/net/can/raw.c
index 864c80dbdb72..f2ecc43376a1 100644
--- a/net/can/raw.c
+++ b/net/can/raw.c
@@ -401,6 +401,8 @@ static int raw_bind(struct socket *sock, struct sockaddr *uaddr, int len)
 
 	if (len < sizeof(*addr))
 		return -EINVAL;
+	if (addr->can_family != AF_CAN)
+		return -EINVAL;
 
 	lock_sock(sk);