[PATCH 0/2] input/hid: Fix bitmap boundary validation

It recently became apparent that some of the low-level input and hid helpers lack some form of input validation when associating an event code with their internal capability bitmap, leading to potential memory corruption.

These two patches address two occurrences of that issue, by masking out the top bits of the event code (all capability bitmaps are conveniently sized as power of twos), and spitting out a warning for further debugging.

Marc Zyngier (2): Input; Sanitize event code before modifying bitmaps HID: core; Sanitize event code and type before mapping input

drivers/input/input.c | 16 +++++++++++++++- include/linux/hid.h | 19 +++++++++++++++---- 2 files changed, 30 insertions(+), 5 deletions(-)