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selinux: correctly handle sa_family cases in selinux_sctp_bind_connect()

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Allow to pass the socket address structure with AF_UNSPEC family for
compatibility purposes. selinux_socket_bind() will further check it
for INADDR_ANY and selinux_socket_connect_helper() should return
EINVAL.

For a bad address family return EINVAL instead of AFNOSUPPORT error,
i.e. what is expected from SCTP protocol in such case.

Fixes: d452930fd3b9 ("selinux: Add SCTP support")
Suggested-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Alexey Kodanev <alexey.kodanev@oracle.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
This commit is contained in:
Alexey Kodanev 2018-05-11 20:15:13 +03:00 committed by Paul Moore
parent 88b7d370bb
commit 4152dc91b5
1 changed files with 2 additions and 1 deletions
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3
security/selinux/hooks.c
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@ -5269,6 +5269,7 @@ static int selinux_sctp_bind_connect(struct sock *sk, int optname,
while (walk_size < addrlen) {
addr = addr_buf;
switch (addr->sa_family) {
case AF_UNSPEC:
case AF_INET:
len = sizeof(struct sockaddr_in);
break;
@ -5276,7 +5277,7 @@ static int selinux_sctp_bind_connect(struct sock *sk, int optname,
len = sizeof(struct sockaddr_in6);
break;
default:
return -EAFNOSUPPORT;
return -EINVAL;
}
err = -EINVAL;