This is a note to let you know that I've just added the patch titled
fbcon: when font is freed, clear also vc_font.data
to the 3.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
fbcon-when-font-is-freed-clear-also-vc_font.data.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From e6637d5427d2af9f3f33b95447bfc5347e5ccd85 Mon Sep 17 00:00:00 2001
From: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx>
Date: Mon, 22 Apr 2013 14:19:26 +0300
Subject: fbcon: when font is freed, clear also vc_font.data
From: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx>
commit e6637d5427d2af9f3f33b95447bfc5347e5ccd85 upstream.
commit ae1287865f5361fa138d4d3b1b6277908b54eac9
Author: Dave Airlie <airlied@xxxxxxxxxx>
Date: Thu Jan 24 16:12:41 2013 +1000
fbcon: don't lose the console font across generic->chip driver switch
uses a pointer in vc->vc_font.data to load font into the new driver.
However if the font is actually freed, we need to clear the data
so that we don't reload font from dangling pointer.
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=892340
Signed-off-by: Mika Kuoppala <mika.kuoppala@xxxxxxxxx>
Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/video/console/fbcon.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -1228,6 +1228,8 @@ static void fbcon_deinit(struct vc_data
finished:
fbcon_free_font(p, free_font);
+ if (free_font)
+ vc->vc_font.data = NULL;
if (!con_is_bound(&fb_con))
fbcon_exit();
Patches currently in stable-queue which might be from mika.kuoppala@xxxxxxxxxxxxxxx are
queue-3.4/fbcon-when-font-is-freed-clear-also-vc_font.data.patch
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