Patch "netlabel: add address family checks to netlbl_{sock,req}_delattr()" has been added to the 4.4-stable tree

This is a note to let you know that I've just added the patch titled

netlabel: add address family checks to netlbl_{sock,req}_delattr()

to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
netlabel-add-address-family-checks-to-netlbl_-sock-req-_delattr.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Paul Moore <[email protected]>
Date: Mon, 6 Jun 2016 15:17:20 -0400
Subject: netlabel: add address family checks to netlbl_{sock,req}_delattr()

From: Paul Moore <[email protected]>

commit 0e0e36774081534783aa8eeb9f6fbddf98d3c061 upstream.

It seems risky to always rely on the caller to ensure the socket's address family is correct before passing it to the NetLabel kAPI, especially since we see at least one LSM which didn't. Add address family checks to the *_delattr() functions to help prevent future problems.

---
 net/netlabel/netlabel_kapi.c |   12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

@@ -824,7 +824,11 @@ socket_setattr_return:
  */
 void netlbl_sock_delattr(struct sock *sk)
 {
-	cipso_v4_sock_delattr(sk);
+	switch (sk->sk_family) {
+	case AF_INET:
+		cipso_v4_sock_delattr(sk);
+		break;
+	}
 }
 
 /**

@@ -987,7 +991,11 @@ req_setattr_return:
 */
 void netlbl_req_delattr(struct request_sock *req)
 {
-	cipso_v4_req_delattr(req);
+	switch (req->rsk_ops->family) {
+	case AF_INET:
+		cipso_v4_req_delattr(req);
+		break;
+	}
 }
 
 /**

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/netlabel-add-address-family-checks-to-netlbl_-sock-req-_delattr.patch queue-4.4/audit-fix-a-double-fetch-in-audit_log_single_execve_arg.patch