| Message ID | 1460395423-15217-1-git-send-email-luis.henriques@canonical.com |
|---|---|
| State | New |
| Headers | show |
diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index 37c7ce9af220..e7bff99cdb2d 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -515,11 +515,15 @@ static int usb_unbind_interface(struct device *dev) int usb_driver_claim_interface(struct usb_driver *driver, struct usb_interface *iface, void *priv) { - struct device *dev = &iface->dev; + struct device *dev; struct usb_device *udev; int retval = 0; int lpm_disable_error; + if (!iface) + return -ENODEV; + + dev = &iface->dev; if (dev->driver) return -EBUSY;
This is a note to let you know that I have just added a patch titled USB: usb_driver_claim_interface: add sanity checking to the linux-3.16.y-queue branch of the 3.16.y-ckt extended stable tree which can be found at: http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.16.y-queue This patch is scheduled to be released in version 3.16.7-ckt27. If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.16.y-ckt tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Luis ---8<------------------------------------------------------------ From 585a7187f2a3006d776fd170d6e0104a721082f9 Mon Sep 17 00:00:00 2001 From: Oliver Neukum <oneukum@suse.com> Date: Wed, 16 Mar 2016 13:26:17 +0100 Subject: USB: usb_driver_claim_interface: add sanity checking commit 0b818e3956fc1ad976bee791eadcbb3b5fec5bfd upstream. Attacks that trick drivers into passing a NULL pointer to usb_driver_claim_interface() using forged descriptors are known. This thwarts them by sanity checking. Signed-off-by: Oliver Neukum <ONeukum@suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Luis Henriques <luis.henriques@canonical.com> --- drivers/usb/core/driver.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)