linux-kernel - [PATCH 4/5] xen pvfb: Zero unused bytes in events sent to backend

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <871w3wm4n4.fsf@pike.pond.sub.org>
Date:	Wed, 21 May 2008 10:40:31 +0200
From:	Markus Armbruster <armbru@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	virtualization@...ts.linux-foundation.org,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	xen-devel@...ts.xensource.com,
	linux-fbdev-devel@...ts.sourceforge.net, adaplas@...il.com,
	linux-input@...r.kernel.org, dmitry.torokhov@...il.com,
	mingo@...hat.com, akpm@...ux-foundation.org,
	Pat Campbell <plc@...ell.com>
Subject: [PATCH 4/5] xen pvfb: Zero unused bytes in events sent to backend

This isn't a security flaw (the backend can see all our memory
anyway).  But it's the right thing to do all the same.

Signed-off-by: Markus Armbruster <armbru@...hat.com>
---
 drivers/video/xen-fbfront.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/video/xen-fbfront.c b/drivers/video/xen-fbfront.c
index 5553e51..291eef6 100644
--- a/drivers/video/xen-fbfront.c
+++ b/drivers/video/xen-fbfront.c
@@ -61,6 +61,7 @@ static void xenfb_do_update(struct xenfb_info *info,
 	union xenfb_out_event event;
 	u32 prod;
 
+	memset(&event, 0, sizeof(event));
 	event.type = XENFB_TYPE_UPDATE;
 	event.update.x = x;
 	event.update.y = y;
-- 
1.5.3.3

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/