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af_iucv: Validate socket address length in iucv_sock_bind()

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Signed-off-by: Ursula Braun <[email protected]>
Reported-by: Dmitry Vyukov <[email protected]>
Reviewed-by: Evgeny Cherkashin <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Ursula Braun 2016-01-19 10:41:33 +01:00 • committed by David S. Miller
commit 52a82e23b9
1 changed files with 3 additions and 0 deletions
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3
net/iucv/af_iucv.c
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@ -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;