This is a note to let you know that I've just added the patch titled
can: fix handling of unmodifiable configuration options fix
to the 4.4-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:
can-fix-handling-of-unmodifiable-configuration-options-fix.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From bce271f255dae8335dc4d2ee2c4531e09cc67f5a Mon Sep 17 00:00:00 2001
From: Oliver Hartkopp <socketcan@xxxxxxxxxxxx>
Date: Tue, 21 Jun 2016 12:14:07 +0200
Subject: can: fix handling of unmodifiable configuration options fix
From: Oliver Hartkopp <socketcan@xxxxxxxxxxxx>
commit bce271f255dae8335dc4d2ee2c4531e09cc67f5a upstream.
With upstream commit bb208f144cf3f59 (can: fix handling of unmodifiable
configuration options) a new can_validate() function was introduced.
When invoking 'ip link set can0 type can' without any configuration data
can_validate() tries to validate the content without taking into account that
there's totally no content. This patch adds a check for missing content.
Reported-by: ajneu <ajneu1@xxxxxxxxx>
Signed-off-by: Oliver Hartkopp <socketcan@xxxxxxxxxxxx>
Signed-off-by: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/can/dev.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/net/can/dev.c
+++ b/drivers/net/can/dev.c
@@ -798,6 +798,9 @@ static int can_validate(struct nlattr *t
* - control mode with CAN_CTRLMODE_FD set
*/
+ if (!data)
+ return 0;
+
if (data[IFLA_CAN_CTRLMODE]) {
struct can_ctrlmode *cm = nla_data(data[IFLA_CAN_CTRLMODE]);
Patches currently in stable-queue which might be from socketcan@xxxxxxxxxxxx are
queue-4.4/can-fix-oops-caused-by-wrong-rtnl-dellink-usage.patch
queue-4.4/can-fix-handling-of-unmodifiable-configuration-options-fix.patch
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