This is a note to let you know that I've just added the patch titled
s390/3270: fix allocation of tty3270_screen structure
to the 3.12-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:
s390-3270-fix-allocation-of-tty3270_screen-structure.patch
and it can be found in the queue-3.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 36d9f4d3b68c7035ead3850dc85f310a579ed0eb Mon Sep 17 00:00:00 2001
From: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Date: Wed, 18 Dec 2013 14:36:18 +0100
Subject: s390/3270: fix allocation of tty3270_screen structure
From: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
commit 36d9f4d3b68c7035ead3850dc85f310a579ed0eb upstream.
The tty3270_alloc_screen function is called from tty3270_install with
swapped arguments, the number of columns instead of rows and vice versa.
The number of rows is typically smaller than the number of columns which
makes the screen array too big but the individual cell arrays for the
lines too small. Creating lines longer than the number of rows will
clobber the memory after the end of the cell array.
The fix is simple, call tty3270_alloc_screen with the correct argument
order.
Signed-off-by: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/s390/char/tty3270.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/s390/char/tty3270.c
+++ b/drivers/s390/char/tty3270.c
@@ -942,7 +942,7 @@ static int tty3270_install(struct tty_dr
return rc;
}
- tp->screen = tty3270_alloc_screen(tp->view.cols, tp->view.rows);
+ tp->screen = tty3270_alloc_screen(tp->view.rows, tp->view.cols);
if (IS_ERR(tp->screen)) {
rc = PTR_ERR(tp->screen);
raw3270_put_view(&tp->view);
Patches currently in stable-queue which might be from schwidefsky@xxxxxxxxxx are
queue-3.12/s390-3270-fix-allocation-of-tty3270_screen-structure.patch
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