* Patch "USB: digi_acceleport: do sanity checking for the number of ports" has been added to the 3.14-stable tree
@ 2016-04-09 23:39 gregkh
0 siblings, 0 replies; only message in thread
From: gregkh @ 2016-04-09 23:39 UTC (permalink / raw)
To: oneukum, ONeukum, gregkh, johan; +Cc: stable, stable-commits
This is a note to let you know that I've just added the patch titled
USB: digi_acceleport: do sanity checking for the number of ports
to the 3.14-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-digi_acceleport-do-sanity-checking-for-the-number-of-ports.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From 5a07975ad0a36708c6b0a5b9fea1ff811d0b0c1f Mon Sep 17 00:00:00 2001
From: Oliver Neukum <oneukum@suse.com>
Date: Thu, 31 Mar 2016 12:04:26 -0400
Subject: USB: digi_acceleport: do sanity checking for the number of ports
From: Oliver Neukum <oneukum@suse.com>
commit 5a07975ad0a36708c6b0a5b9fea1ff811d0b0c1f upstream.
The driver can be crashed with devices that expose crafted descriptors
with too few endpoints.
See: http://seclists.org/bugtraq/2016/Mar/61
Signed-off-by: Oliver Neukum <ONeukum@suse.com>
[johan: fix OOB endpoint check and add error messages ]
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/usb/serial/digi_acceleport.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
--- a/drivers/usb/serial/digi_acceleport.c
+++ b/drivers/usb/serial/digi_acceleport.c
@@ -1252,8 +1252,27 @@ static int digi_port_init(struct usb_ser
static int digi_startup(struct usb_serial *serial)
{
+ struct device *dev = &serial->interface->dev;
struct digi_serial *serial_priv;
int ret;
+ int i;
+
+ /* check whether the device has the expected number of endpoints */
+ if (serial->num_port_pointers < serial->type->num_ports + 1) {
+ dev_err(dev, "OOB endpoints missing\n");
+ return -ENODEV;
+ }
+
+ for (i = 0; i < serial->type->num_ports + 1 ; i++) {
+ if (!serial->port[i]->read_urb) {
+ dev_err(dev, "bulk-in endpoint missing\n");
+ return -ENODEV;
+ }
+ if (!serial->port[i]->write_urb) {
+ dev_err(dev, "bulk-out endpoint missing\n");
+ return -ENODEV;
+ }
+ }
serial_priv = kzalloc(sizeof(*serial_priv), GFP_KERNEL);
if (!serial_priv)
Patches currently in stable-queue which might be from oneukum@suse.com are
queue-3.14/usb-cdc-acm-more-sanity-checking.patch
queue-3.14/usb-mct_u232-add-sanity-checking-in-probe.patch
queue-3.14/usb-digi_acceleport-do-sanity-checking-for-the-number-of-ports.patch
queue-3.14/usb-cypress_m8-add-endpoint-sanity-check.patch
queue-3.14/usb-retry-reset-if-a-device-times-out.patch
queue-3.14/usb-hub-fix-a-typo-in-hub_port_init-leading-to-wrong-logic.patch
queue-3.14/usb-usb_driver_claim_interface-add-sanity-checking.patch
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2016-04-09 23:39 Patch "USB: digi_acceleport: do sanity checking for the number of ports" has been added to the 3.14-stable tree gregkh
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