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af_iucv: Validate socket address length in iucv_sock_bind() 

[ Upstream commit 52a82e23b9 ]

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>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
wifi-calibration
Ursula Braun 2016-01-19 10:41:33 +01:00 committed by Sasha Levin
parent 35cc814663
commit 257ed6d440
1 changed files with 3 additions and 0 deletions
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3
net/iucv/af_iucv.c
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@ -709,6 +709,9 @@ 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;