| From | Kamal Mostafa <> | Subject | [PATCH 4.2.y-ckt 219/273] af_iucv: Validate socket address length in iucv_sock_bind() | Date | Mon, 7 Mar 2016 14:50:10 -0800 |
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4.2.8-ckt5 -stable review patch. If anyone has any objections, please let me know.
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From: Ursula Braun <ursula.braun@de.ibm.com>
[ Upstream commit 52a82e23b9f2a9e1d429c5207f8575784290d008 ]
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: Kamal Mostafa <kamal@canonical.com> --- net/iucv/af_iucv.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c index 918151c..3a743d8e 100644 --- a/net/iucv/af_iucv.c +++ b/net/iucv/af_iucv.c @@ -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; -- 2.7.0
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