diff options
| author | Johan Hovold <johan@kernel.org> | 2017-03-16 11:34:02 -0700 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-07-04 11:51:20 +0200 |
| commit | 2459faa29d2448d4b6242e73172b671dfe241b87 (patch) | |
| tree | c4c35b0f108e3f433564bfde7b46d20459f05862 /drivers/input | |
| parent | c18b4077a8939d1f02bd60fc648f64837aa198e9 (diff) | |
Input: iforce - validate number of endpoints before using them
commit 59cf8bed44a79ec42303151dd014fdb6434254bb upstream.
Make sure to check the number of endpoints to avoid dereferencing a
NULL-pointer or accessing memory that lie beyond the end of the endpoint
array should a malicious device lack the expected endpoints.
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Diffstat (limited to 'drivers/input')
| -rw-r--r-- | drivers/input/joystick/iforce/iforce-usb.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/input/joystick/iforce/iforce-usb.c b/drivers/input/joystick/iforce/iforce-usb.c index d96aa27df..db64adfbe 100644 --- a/drivers/input/joystick/iforce/iforce-usb.c +++ b/drivers/input/joystick/iforce/iforce-usb.c @@ -141,6 +141,9 @@ static int iforce_usb_probe(struct usb_interface *intf, interface = intf->cur_altsetting; + if (interface->desc.bNumEndpoints < 2) + return -ENODEV; + epirq = &interface->endpoint[0].desc; epout = &interface->endpoint[1].desc; |