CVE-2026-89619

In the Linux kernel, the following vulnerability has been resolved:

HID: intel-thc-hid: intel-quickspi: bound GET REPORT response to the caller buffer

quickspi hid raw request() receives the caller's buffer length in len, but quickspi get report() never sees it and copies the whole device-supplied response into buf regardless:

memcpy(buf, qsdev->report buf, qsdev->report len);

qsdev->report len comes from the input report the touch controller returns, while buf is sized to whatever the caller asked hidraw for through HIDIOCGFEATURE or HIDIOCGINPUT. A response larger than that overflows buf with device-controlled content.

The intel-quicki2c sibling already passes the caller length down to quicki2c get report() and validates the response against it before the copy. Do the same here.