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| author | Ursula Braun <ursula.braun@de.ibm.com> | 2016-01-19 10:41:33 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-01-19 14:21:08 -0500 |
| commit | 52a82e23b9f2a9e1d429c5207f8575784290d008 (patch) | |
| tree | ec3563d6d1eea97c67e1014df4e4a037f7931b6d /net/iucv | |
| parent | ed0dfffd7dcd3f517b1507929642c2aed4ef00fb (diff) | |
| download | lwn-52a82e23b9f2a9e1d429c5207f8575784290d008.tar.gz lwn-52a82e23b9f2a9e1d429c5207f8575784290d008.zip | |
af_iucv: Validate socket address length in iucv_sock_bind()
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>
Diffstat (limited to 'net/iucv')
| -rw-r--r-- | net/iucv/af_iucv.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c index ef50a94d3eb7..fc3598a922b0 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; |