[kernel] r16570 - in dists/sid/linux-2.6/debian: . patches/debian patches/series

[Ben Hutchings]

Author: benh
Date: Sat Nov 20 02:28:43 2010
New Revision: 16570

Log:
decnet: Disable auto-loading as mitigation against local exploits

Added:
   dists/sid/linux-2.6/debian/patches/debian/decnet-Disable-auto-loading-as-mitigation-against-lo.patch
Modified:
   dists/sid/linux-2.6/debian/changelog
   dists/sid/linux-2.6/debian/patches/series/28

Modified: dists/sid/linux-2.6/debian/changelog
==============================================================================
--- dists/sid/linux-2.6/debian/changelog	Fri Nov 19 06:53:53 2010	(r16569)
+++ dists/sid/linux-2.6/debian/changelog	Sat Nov 20 02:28:43 2010	(r16570)
@@ -46,9 +46,10 @@
     - Prevent crashing when parsing bad X.25 facilities (CVE-2010-4164)
   * tcp: Increase TCP_MAXSEG socket option minimum (CVE-2010-4165)
   * rds: Fix integer overflow in RDS cmsg handling
-  * af_802154,econet,rds,x25: Disable auto-loading as mitigation against
-    local exploits.  These protocol modules are not widely used and can be
-    explicitly loaded or aliased on systems where they are wanted.
+  * af_802154,decnet,econet,rds,x25: Disable auto-loading as mitigation
+    against local exploits.  These protocol modules are not widely used
+    and can be explicitly loaded or aliased on systems where they are
+    wanted.
 
   [ dann frazier ]
   * [vserver] Update patch to 2.6.32.25-vs2.3.0.36.29.6

Added: dists/sid/linux-2.6/debian/patches/debian/decnet-Disable-auto-loading-as-mitigation-against-lo.patch
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ dists/sid/linux-2.6/debian/patches/debian/decnet-Disable-auto-loading-as-mitigation-against-lo.patch	Sat Nov 20 02:28:43 2010	(r16570)
@@ -0,0 +1,37 @@
+From 0061a6e7c7e5fef1d257cb2c2d9180f655ea5c1a Mon Sep 17 00:00:00 2001
+From: Ben Hutchings <ben at decadent.org.uk>
+Date: Sat, 20 Nov 2010 02:24:55 +0000
+Subject: [PATCH] decnet: Disable auto-loading as mitigation against local exploits
+
+Recent review has revealed several bugs in obscure protocol
+implementations that can be exploited by local users for denial of
+service or privilege escalation.  We can mitigate the effect of any
+remaining vulnerabilities in such protocols by preventing unprivileged
+users from loading the modules, so that they are only exploitable on
+systems where the administrator has chosen to load the protocol.
+
+The 'decnet' protocol is unmaintained and of mostly historical
+interest, and the user-space support package 'dnet-common' loads the
+module explicitly.  Therefore disable auto-loading.
+
+Signed-off-by: Ben Hutchings <ben at decadent.org.uk>
+---
+ net/decnet/af_decnet.c |    2 +-
+ 1 files changed, 1 insertions(+), 1 deletions(-)
+
+diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c
+index 7a58c87..ed9e2b0 100644
+--- a/net/decnet/af_decnet.c
++++ b/net/decnet/af_decnet.c
+@@ -2358,7 +2358,7 @@ void dn_unregister_sysctl(void);
+ MODULE_DESCRIPTION("The Linux DECnet Network Protocol");
+ MODULE_AUTHOR("Linux DECnet Project Team");
+ MODULE_LICENSE("GPL");
+-MODULE_ALIAS_NETPROTO(PF_DECnet);
++/* MODULE_ALIAS_NETPROTO(PF_DECnet); */
+ 
+ static char banner[] __initdata = KERN_INFO "NET4: DECnet for Linux: V.2.5.68s (C) 1995-2003 Linux DECnet Project Team\n";
+ 
+-- 
+1.7.2.3
+

Modified: dists/sid/linux-2.6/debian/patches/series/28
==============================================================================
--- dists/sid/linux-2.6/debian/patches/series/28	Fri Nov 19 06:53:53 2010	(r16569)
+++ dists/sid/linux-2.6/debian/patches/series/28	Sat Nov 20 02:28:43 2010	(r16570)
@@ -44,3 +44,4 @@
 + debian/af_802154-Disable-auto-loading-as-mitigation-against.patch
 + debian/econet-Disable-auto-loading-as-mitigation-against-lo.patch
 + debian/x25-Disable-auto-loading-as-mitigation-against-local.patch
++ debian/decnet-Disable-auto-loading-as-mitigation-against-lo.patch