Patch "console/dummy: leave .con_font_get set to NULL" has been added to the 4.14-stable tree
Subsystems (3)
This is a note to let you know that I've just added the patch titled
console/dummy: leave .con_font_get set to NULL
to the 4.14-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:
console-dummy-leave-.con_font_get-set-to-null.patch
and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.
Quoted 1 line
From
724ba8b30b044aa0d94b1cd374fc15806cdd6f18Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <[email protected]>
Date: Mon, 15 Jan 2018 17:04:22 +0100
Subject: console/dummy: leave .con_font_get set to NULL
From: Nicolas Pitre <[email protected]>
commit 724ba8b30b044aa0d94b1cd374fc15806cdd6f18 upstream.
When this method is set, the caller expects struct console_font fields to be properly initialized when it returns. Leave it unset otherwise nonsensical (leaked kernel stack) values are returned to user space.
--- drivers/video/console/dummycon.c | 1 - 1 file changed, 1 deletion(-)
drivers/video/console/dummycon.c +0 -1
@@ -67,7 +67,6 @@ const struct consw dummy_con = { .con_switch = DUMMY, .con_blank = DUMMY, .con_font_set = DUMMY, - .con_font_get = DUMMY, .con_font_default = DUMMY, .con_font_copy = DUMMY, };
Patches currently in stable-queue which might be from [email protected] are
queue-4.14/console-dummy-leave-.con_font_get-set-to-null.patch