This is a note to let you know that I've just added the patch titled
USB: iowarrior: fix NULL-deref in write
to the 4.9-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:
usb-iowarrior-fix-null-deref-in-write.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From de46e56653de7b3b54baa625bd582635008b8d05 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@xxxxxxxxxx>
Date: Tue, 7 Mar 2017 16:11:04 +0100
Subject: USB: iowarrior: fix NULL-deref in write
From: Johan Hovold <johan@xxxxxxxxxx>
commit de46e56653de7b3b54baa625bd582635008b8d05 upstream.
Make sure to verify that we have the required interrupt-out endpoint for
IOWarrior56 devices to avoid dereferencing a NULL-pointer in write
should a malicious device lack such an endpoint.
Fixes: 946b960d13c1 ("USB: add driver for iowarrior devices.")
Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/misc/iowarrior.c | 8 ++++++++
1 file changed, 8 insertions(+)
--- a/drivers/usb/misc/iowarrior.c
+++ b/drivers/usb/misc/iowarrior.c
@@ -798,6 +798,14 @@ static int iowarrior_probe(struct usb_in
goto error;
}
+ if (dev->product_id == USB_DEVICE_ID_CODEMERCS_IOW56) {
+ if (!dev->int_out_endpoint) {
+ dev_err(&interface->dev, "no interrupt-out endpoint found\n");
+ retval = -ENODEV;
+ goto error;
+ }
+ }
+
/* we have to check the report_size often, so remember it in the endianness suitable for our machine */
dev->report_size = usb_endpoint_maxp(dev->int_in_endpoint);
if ((dev->interface->cur_altsetting->desc.bInterfaceNumber == 0) &&
Patches currently in stable-queue which might be from johan@xxxxxxxxxx are
queue-4.9/usb-serial-digi_acceleport-fix-oob-event-processing.patch
queue-4.9/usb-serial-omninet-fix-reference-leaks-at-open.patch
queue-4.9/usb-serial-digi_acceleport-fix-oob-data-sanity-check.patch
queue-4.9/usb-iowarrior-fix-null-deref-in-write.patch
queue-4.9/usb-iowarrior-fix-null-deref-at-probe.patch
queue-4.9/usb-serial-io_ti-fix-null-deref-in-interrupt-callback.patch
queue-4.9/usb-serial-io_ti-fix-information-leak-in-completion-handler.patch
queue-4.9/usb-serial-safe_serial-fix-information-leak-in-completion-handler.patch