CVE-2026-46232

About vulnerability

In the Linux kernel, the following vulnerability has been resolved: HID: playstation: Clamp num_touch_reports A device would never lie about the number of touch reports would it? If it does the loop in dualshock4_parse_report will read off the end of the touch_reports array, up to about 2 KiB for the maximum number of 256 loop iteraions. The data that is read is emitted via evdev if the DS4_TOUCH_POINT_INACTIVE bit happens to be set. Protect against this by clamping the num_touch_reports value provided by the device to the maximum size of the touch_reports array. A flaw was found in the Linux kernel’s Human Interface Device (HID) PlayStation driver. A malicious device could provide an excessively large number of touch reports, leading to an out-of-bounds read in the dualshock4_parse_report function. This could allow an attacker to read up to 2 KiB of kernel memory, potentially leading to information disclosure.

Live-patch status from KernelCare for each operating system.