diff mbox

[net,1/1] af_iucv: Validate socket address length in iucv_sock_bind()

Message ID 1453196493-57590-2-git-send-email-ubraun@linux.vnet.ibm.com
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Ursula Braun Jan. 19, 2016, 9:41 a.m. UTC 
From: Ursula Braun <ursula.braun@de.ibm.com>

Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Reviewed-by: Evgeny Cherkashin <Eugene.Crosser@ru.ibm.com>
---
 net/iucv/af_iucv.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox

Patch

diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index ef50a94..fc3598a 100644
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -708,6 +708,9 @@  static int iucv_sock_bind(struct socket *sock, struct sockaddr *addr,
 	if (!addr || addr->sa_family != AF_IUCV)
 		return -EINVAL;
 
+	if (addr_len < sizeof(struct sockaddr_iucv))
+		return -EINVAL;
+
 	lock_sock(sk);
 	if (sk->sk_state != IUCV_OPEN) {
 		err = -EBADFD;