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[PATCH] selinux: Fix address length checks in connect hook

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This patch fixes the address length checks in the selinux_socket_connect
hook to be no more restrictive than the underlying ipv4 and ipv6 code;
otherwise, this hook can reject valid connect calls.  This patch is in
response to a bug report where an application was calling connect on an
INET6 socket with an address that didn't include the optional scope id and
failing due to these checks.

Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: James Morris <jmorris@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Stephen Smalley 2005-07-28 21:16:21 -07:00 committed by Linus Torvalds
parent f0b9d79600
commit 911656f8a6
1 changed files with 2 additions and 2 deletions
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4
security/selinux/hooks.c
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@ -3126,12 +3126,12 @@ static int selinux_socket_connect(struct socket *sock, struct sockaddr *address,
if (sk->sk_family == PF_INET) {
addr4 = (struct sockaddr_in *)address;
if (addrlen != sizeof(struct sockaddr_in))
if (addrlen < sizeof(struct sockaddr_in))
return -EINVAL;
snum = ntohs(addr4->sin_port);
} else {
addr6 = (struct sockaddr_in6 *)address;
if (addrlen != sizeof(struct sockaddr_in6))
if (addrlen < SIN6_LEN_RFC2133)
return -EINVAL;
snum = ntohs(addr6->sin6_port);
}