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can: test size of struct sockaddr in sendmsg
[deliverable/linux.git]
/
net
/
can
/
raw.c
diff --git
a/net/can/raw.c
b/net/can/raw.c
index e88f610fdb7bb11e69cc1f5a0bf10846d5c7165c..883e9d74fddf6439b483f822b327371b78bb9670 100644
(file)
--- a/
net/can/raw.c
+++ b/
net/can/raw.c
@@
-649,6
+649,9
@@
static int raw_sendmsg(struct kiocb *iocb, struct socket *sock,
struct sockaddr_can *addr =
(struct sockaddr_can *)msg->msg_name;
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;
if (addr->can_family != AF_CAN)
return -EINVAL;
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