This is a note to let you know that I've just added the patch titled Input: yealink - validate number of endpoints before using them to the 4.10-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: input-yealink-validate-number-of-endpoints-before-using-them.patch and it can be found in the queue-4.10 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 5cc4a1a9f5c179795c8a1f2b0f4361829d6a070e Mon Sep 17 00:00:00 2001 From: Johan Hovold <johan@xxxxxxxxxx> Date: Thu, 16 Mar 2017 11:37:01 -0700 Subject: Input: yealink - validate number of endpoints before using them From: Johan Hovold <johan@xxxxxxxxxx> commit 5cc4a1a9f5c179795c8a1f2b0f4361829d6a070e upstream. Make sure to check the number of endpoints to avoid dereferencing a NULL-pointer should a malicious device lack endpoints. Fixes: aca951a22a1d ("[PATCH] input-driver-yealink-P1K-usb-phone") Signed-off-by: Johan Hovold <johan@xxxxxxxxxx> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/input/misc/yealink.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/drivers/input/misc/yealink.c +++ b/drivers/input/misc/yealink.c @@ -875,6 +875,10 @@ static int usb_probe(struct usb_interfac int ret, pipe, i; interface = intf->cur_altsetting; + + if (interface->desc.bNumEndpoints < 1) + return -ENODEV; + endpoint = &interface->endpoint[0].desc; if (!usb_endpoint_is_int_in(endpoint)) return -ENODEV; Patches currently in stable-queue which might be from johan@xxxxxxxxxx are queue-4.10/usb-serial-option-add-quectel-uc15-uc20-ec21-and-ec25-modems.patch queue-4.10/input-ims-pcu-validate-number-of-endpoints-before-using-them.patch queue-4.10/usb-usbtmc-add-missing-endpoint-sanity-check.patch queue-4.10/input-cm109-validate-number-of-endpoints-before-using-them.patch queue-4.10/input-iforce-validate-number-of-endpoints-before-using-them.patch queue-4.10/mmc-ushc-fix-null-deref-at-probe.patch queue-4.10/input-kbtab-validate-number-of-endpoints-before-using-them.patch queue-4.10/usb-usbtmc-fix-probe-error-path.patch queue-4.10/input-sur40-validate-number-of-endpoints-before-using-them.patch queue-4.10/uwb-i1480-dfu-fix-null-deref-at-probe.patch queue-4.10/input-hanwang-validate-number-of-endpoints-before-using-them.patch queue-4.10/usb-idmouse-fix-null-deref-at-probe.patch queue-4.10/uwb-hwa-rc-fix-null-deref-at-probe.patch queue-4.10/usb-lvtest-fix-null-deref-at-probe.patch queue-4.10/input-yealink-validate-number-of-endpoints-before-using-them.patch queue-4.10/usb-serial-qcserial-add-dell-dw5811e.patch queue-4.10/usb-uss720-fix-null-deref-at-probe.patch queue-4.10/usb-wusbcore-fix-null-deref-at-probe.patch