linux-kernel - [PATCH 3/3] SELinux: flush the avc before disabling SELinux

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Date:	Sat, 12 Sep 2009 22:54:23 -0400
From:	Eric Paris <eparis@...hat.com>
To:	linux-kernel@...r.kernel.org, selinux@...ho.nsa.gov
Cc:	sds@...ho.nsa.gov, jmorris@...ei.org, mingo@...e.hu,
	dhowells@...hat.com
Subject: [PATCH 3/3] SELinux: flush the avc before disabling SELinux

Before SELinux is disabled at boot it can create AVC entries.  This patch
will flush those entries before disabling SELinux.

Signed-off-by: Eric Paris <eparis@...hat.com>
---

 security/selinux/avc.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/security/selinux/avc.c b/security/selinux/avc.c
index f601246..1ed0f07 100644
--- a/security/selinux/avc.c
+++ b/security/selinux/avc.c
@@ -868,6 +868,8 @@ u32 avc_policy_seqno(void)
 
 void avc_disable(void)
 {
+	avc_flush();
+	synchronize_rcu();
 	if (avc_node_cachep)
 		kmem_cache_destroy(avc_node_cachep);
 }

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