xnu-4570.31.3.tar.gz

[apple/xnu.git] / bsd / kern / uipc_syscalls.c

diff --git a/bsd/kern/uipc_syscalls.c b/bsd/kern/uipc_syscalls.c
index 73c6ba447ee10ab7011307905f49868c1f880574..f51596c3766b1cf2843d23619fac1a1a54945a44 100644 (file)
--- a/bsd/kern/uipc_syscalls.c
+++ b/bsd/kern/uipc_syscalls.c
@@ -90,6 +90,7 @@
 #include <kern/task.h>
 #include <sys/priv.h>
 #include <sys/sysctl.h>
+#include <sys/sys_domain.h>
 
 #include <security/audit/audit.h>
 
@@ -328,7 +329,8 @@ bind(__unused proc_t p, struct bind_args *uap, __unused int32_t *retval)
                goto out;
        AUDIT_ARG(sockaddr, vfs_context_cwd(vfs_context_current()), sa);
 #if CONFIG_MACF_SOCKET_SUBSET
-       if ((error = mac_socket_check_bind(kauth_cred_get(), so, sa)) == 0)
+       if ((sa != NULL && sa->sa_family == AF_SYSTEM) ||
+               (error = mac_socket_check_bind(kauth_cred_get(), so, sa)) == 0)
                error = sobindlock(so, sa, 1);  /* will lock socket */
 #else
                error = sobindlock(so, sa, 1);  /* will lock socket */