This is a note to let you know that I've just added the patch titled
usbnet: cleanup after bind() in probe()
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:
usbnet-cleanup-after-bind-in-probe.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 foo@baz Sat Apr 16 10:02:53 PDT 2016
From: Oliver Neukum <oneukum@xxxxxxxx>
Date: Mon, 7 Mar 2016 11:31:10 +0100
Subject: usbnet: cleanup after bind() in probe()
From: Oliver Neukum <oneukum@xxxxxxxx>
[ Upstream commit 1666984c8625b3db19a9abc298931d35ab7bc64b ]
In case bind() works, but a later error forces bailing
in probe() in error cases work and a timer may be scheduled.
They must be killed. This fixes an error case related to
the double free reported in
http://www.spinics.net/lists/netdev/msg367669.html
and needs to go on top of Linus' fix to cdc-ncm.
Signed-off-by: Oliver Neukum <ONeukum@xxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/usb/usbnet.c | 7 +++++++
1 file changed, 7 insertions(+)
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -1766,6 +1766,13 @@ out3:
if (info->unbind)
info->unbind (dev, udev);
out1:
+ /* subdrivers must undo all they did in bind() if they
+ * fail it, but we may fail later and a deferred kevent
+ * may trigger an error resubmitting itself and, worse,
+ * schedule a timer. So we kill it all just in case.
+ */
+ cancel_work_sync(&dev->kevent);
+ del_timer_sync(&dev->delay);
free_netdev(net);
out:
return status;
Patches currently in stable-queue which might be from oneukum@xxxxxxxx are
queue-4.4/usbnet-cleanup-after-bind-in-probe.patch
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html