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    Subject[PATCH 2/3] net/unix: hook unix_socketpair() into LSM
    Date
    Use the newly created LSM-hook for unix_socketpair(). The default hook
    return-value is 0, so behavior stays the same unless LSMs start using
    this hook.

    Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
    ---
    net/unix/af_unix.c | 5 +++++
    1 file changed, 5 insertions(+)

    diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
    index 68bb70a62afe..bc9705ace9b1 100644
    --- a/net/unix/af_unix.c
    +++ b/net/unix/af_unix.c
    @@ -1371,6 +1371,11 @@ static int unix_stream_connect(struct socket *sock, struct sockaddr *uaddr,
    static int unix_socketpair(struct socket *socka, struct socket *sockb)
    {
    struct sock *ska = socka->sk, *skb = sockb->sk;
    + int err;
    +
    + err = security_unix_stream_socketpair(ska, skb);
    + if (err)
    + return err;

    /* Join our sockets back to back */
    sock_hold(ska);
    --
    2.17.0
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