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Diffstat (limited to 'security')
-rw-r--r--security/selinux/hooks.c22
1 files changed, 17 insertions, 5 deletions
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 03fc6a81ae32..223f474bee86 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -4207,10 +4207,12 @@ static int selinux_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *
u32 peer_secid = SECSID_NULL;
u16 family;
- if (sock)
+ if (skb && skb->protocol == htons(ETH_P_IP))
+ family = PF_INET;
+ else if (skb && skb->protocol == htons(ETH_P_IPV6))
+ family = PF_INET6;
+ else if (sock)
family = sock->sk->sk_family;
- else if (skb && skb->sk)
- family = skb->sk->sk_family;
else
goto out;
@@ -4277,10 +4279,15 @@ static int selinux_inet_conn_request(struct sock *sk, struct sk_buff *skb,
{
struct sk_security_struct *sksec = sk->sk_security;
int err;
+ u16 family = sk->sk_family;
u32 newsid;
u32 peersid;
- err = selinux_skb_peerlbl_sid(skb, sk->sk_family, &peersid);
+ /* handle mapped IPv4 packets arriving via IPv6 sockets */
+ if (family == PF_INET6 && skb->protocol == htons(ETH_P_IP))
+ family = PF_INET;
+
+ err = selinux_skb_peerlbl_sid(skb, family, &peersid);
if (err)
return err;
if (peersid == SECSID_NULL) {
@@ -4318,9 +4325,14 @@ static void selinux_inet_csk_clone(struct sock *newsk,
static void selinux_inet_conn_established(struct sock *sk,
struct sk_buff *skb)
{
+ u16 family = sk->sk_family;
struct sk_security_struct *sksec = sk->sk_security;
- selinux_skb_peerlbl_sid(skb, sk->sk_family, &sksec->peer_sid);
+ /* handle mapped IPv4 packets arriving via IPv6 sockets */
+ if (family == PF_INET6 && skb->protocol == htons(ETH_P_IP))
+ family = PF_INET;
+
+ selinux_skb_peerlbl_sid(skb, family, &sksec->peer_sid);
}
static void selinux_req_classify_flow(const struct request_sock *req,