This is a note to let you know that I've just added the patch titled
Input: zforce - don't overwrite the stack
to the 4.1-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:
input-zforce-don-t-overwrite-the-stack.patch
and it can be found in the queue-4.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 7d01cd261c76f95913c81554a751968a1d282d3a Mon Sep 17 00:00:00 2001
From: Oleksij Rempel <external.Oleksij.Rempel@xxxxxxxxxxxx>
Date: Mon, 13 Jul 2015 09:54:42 -0700
Subject: Input: zforce - don't overwrite the stack
From: Oleksij Rempel <external.Oleksij.Rempel@xxxxxxxxxxxx>
commit 7d01cd261c76f95913c81554a751968a1d282d3a upstream.
If we get a corrupted packet with PAYLOAD_LENGTH > FRAME_MAXSIZE, we
will silently overwrite the stack.
Signed-off-by: Oleksij Rempel <external.Oleksij.Rempel@xxxxxxxxxxxx>
Signed-off-by: Dirk Behme <dirk.behme@xxxxxxxxxxxx>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/input/touchscreen/zforce_ts.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/input/touchscreen/zforce_ts.c
+++ b/drivers/input/touchscreen/zforce_ts.c
@@ -430,7 +430,7 @@ static int zforce_read_packet(struct zfo
goto unlock;
}
- if (buf[PAYLOAD_LENGTH] == 0) {
+ if (buf[PAYLOAD_LENGTH] == 0 || buf[PAYLOAD_LENGTH] > FRAME_MAXSIZE) {
dev_err(&client->dev, "invalid payload length: %d\n",
buf[PAYLOAD_LENGTH]);
ret = -EIO;
Patches currently in stable-queue which might be from external.Oleksij.Rempel@xxxxxxxxxxxx are
queue-4.1/input-zforce-don-t-overwrite-the-stack.patch
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