Patch "integrity: prevent loading untrusted certificates on the IMA trusted keyring" has been added to the 4.3-stable tree

Patch "integrity: prevent loading untrusted certificates on the IMA trusted keyring" has been added to the 4.3-stable tree

[gregkh]

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

    integrity: prevent loading untrusted certificates on the IMA trusted keyring

to the 4.3-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:
     integrity-prevent-loading-untrusted-certificates-on-the-ima-trusted-keyring.patch
and it can be found in the queue-4.3 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 72e1eed8abb11c79749266d433c817ce36732893 Mon Sep 17 00:00:00 2001
From: Dmitry Kasatkin <dmitry.kasatkin@gmail.com>
Date: Thu, 10 Sep 2015 22:06:15 +0300
Subject: integrity: prevent loading untrusted certificates on the IMA trusted keyring

From: Dmitry Kasatkin <dmitry.kasatkin@gmail.com>

commit 72e1eed8abb11c79749266d433c817ce36732893 upstream.

If IMA_LOAD_X509 is enabled, either directly or indirectly via
IMA_APPRAISE_SIGNED_INIT, certificates are loaded onto the IMA
trusted keyring by the kernel via key_create_or_update(). When
the KEY_ALLOC_TRUSTED flag is provided, certificates are loaded
without first verifying the certificate is properly signed by a
trusted key on the system keyring.  This patch removes the
KEY_ALLOC_TRUSTED flag.

Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@huawei.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 security/integrity/digsig.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/security/integrity/digsig.c
+++ b/security/integrity/digsig.c
@@ -105,7 +105,7 @@ int __init integrity_load_x509(const uns
 				   rc,
 				   ((KEY_POS_ALL & ~KEY_POS_SETATTR) |
 				    KEY_USR_VIEW | KEY_USR_READ),
-				   KEY_ALLOC_NOT_IN_QUOTA | KEY_ALLOC_TRUSTED);
+				   KEY_ALLOC_NOT_IN_QUOTA);
 	if (IS_ERR(key)) {
 		rc = PTR_ERR(key);
 		pr_err("Problem loading X.509 certificate (%d): %s\n",


Patches currently in stable-queue which might be from dmitry.kasatkin@gmail.com are

queue-4.3/integrity-prevent-loading-untrusted-certificates-on-the-ima-trusted-keyring.patch