linux-kernel - [patch 3/5] Apply the PG_sensitive flag to audit subsystem

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Message-ID: <20090520185005.GC10756@oblivion.subreption.com>
Date:	Wed, 20 May 2009 11:50:05 -0700
From:	"Larry H." <research@...reption.com>
To:	linux-kernel@...r.kernel.org
Cc:	Linus Torvalds <torvalds@...l.org>, linux-mm@...ck.org,
	Ingo Molnar <mingo@...hat.com>, pageexec@...email.hu,
	faith@...hat.com
Subject: [patch 3/5] Apply the PG_sensitive flag to audit subsystem

This patch deploys the use of the PG_sensitive page allocator flag
within the audit subsystem. It's not necessarily a high profile
target for use of this flag, but could be expected to contain
potentially sensitive information under some circumstances.

Signed-off-by: Larry H. <research@...reption.com>

---
 kernel/audit.c |    3 +++
 1 file changed, 3 insertions(+)

Index: linux-2.6/kernel/audit.c
===================================================================
--- linux-2.6.orig/kernel/audit.c
+++ linux-2.6/kernel/audit.c
@@ -1061,6 +1061,9 @@ static struct audit_buffer * audit_buffe
 	}
 	spin_unlock_irqrestore(&audit_freelist_lock, flags);
 
+	if (!(gfp_mask & GFP_SENSITIVE))
+		gfp_mask |= GFP_SENSITIVE;
+
 	if (!ab) {
 		ab = kmalloc(sizeof(*ab), gfp_mask);
 		if (!ab)
--
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