illumos gate

The nfsauth_cache_get() does this:

838    claddr = svc_getrpccaller(req->rq_xprt);
839    addr = *claddr;
840    addr.buf = kmem_alloc(addr.len, KM_SLEEP);

and this:

1227
1228    kmem_free(addr.buf, addr.len);
1229

(and similarly at some other places).

Properly, the maxlen (instead of len) should be used there.

Fortunately, the current implementation is harmless now, but to avoid confusion for future it would be nice to have this fixed.