@@ 1,84 0,0 @@
-Copied from
-https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/patch/?id=23567fd052a9abb6d67fe8e7a9ccdd9800a540f2
-
-From 23567fd052a9abb6d67fe8e7a9ccdd9800a540f2 Mon Sep 17 00:00:00 2001
-From: Yevgeny Pats <yevgeny@perception-point.io>
-Date: Tue, 19 Jan 2016 22:09:04 +0000
-Subject: KEYS: Fix keyring ref leak in join_session_keyring()
-
-This fixes CVE-2016-0728.
-
-If a thread is asked to join as a session keyring the keyring that's already
-set as its session, we leak a keyring reference.
-
-This can be tested with the following program:
-
-	#include <stddef.h>
-	#include <stdio.h>
-	#include <sys/types.h>
-	#include <keyutils.h>
-
-	int main(int argc, const char *argv[])
-	{
-		int i = 0;
-		key_serial_t serial;
-
-		serial = keyctl(KEYCTL_JOIN_SESSION_KEYRING,
-				"leaked-keyring");
-		if (serial < 0) {
-			perror("keyctl");
-			return -1;
-		}
-
-		if (keyctl(KEYCTL_SETPERM, serial,
-			   KEY_POS_ALL | KEY_USR_ALL) < 0) {
-			perror("keyctl");
-			return -1;
-		}
-
-		for (i = 0; i < 100; i++) {
-			serial = keyctl(KEYCTL_JOIN_SESSION_KEYRING,
-					"leaked-keyring");
-			if (serial < 0) {
-				perror("keyctl");
-				return -1;
-			}
-		}
-
-		return 0;
-	}
-
-If, after the program has run, there something like the following line in
-/proc/keys:
-
-3f3d898f I--Q---   100 perm 3f3f0000     0     0 keyring   leaked-keyring: empty
-
-with a usage count of 100 * the number of times the program has been run,
-then the kernel is malfunctioning.  If leaked-keyring has zero usages or
-has been garbage collected, then the problem is fixed.
-
-Reported-by: Yevgeny Pats <yevgeny@perception-point.io>
-Signed-off-by: David Howells <dhowells@redhat.com>
-Acked-by: Don Zickus <dzickus@redhat.com>
-Acked-by: Prarit Bhargava <prarit@redhat.com>
-Acked-by: Jarod Wilson <jarod@redhat.com>
-Signed-off-by: James Morris <james.l.morris@oracle.com>
----
- security/keys/process_keys.c | 1 +
- 1 file changed, 1 insertion(+)
-
-diff --git a/security/keys/process_keys.c b/security/keys/process_keys.c
-index a3f85d2..e6d50172 100644
---- a/security/keys/process_keys.c
-+++ b/security/keys/process_keys.c
-@@ -794,6 +794,7 @@ long join_session_keyring(const char *name)
- 		ret = PTR_ERR(keyring);
- 		goto error2;
- 	} else if (keyring == new->session_keyring) {
-+		key_put(keyring);
- 		ret = 0;
- 		goto error2;
- 	}
--- 
-cgit v0.12
-