staging: vc04_services: vchiq-mmal: harden MMAL message handling against firmware bugs#7296

Sebasteuo wants to merge 4 commits intoraspberrypi:rpi-6.18.yraspberrypi/linux:rpi-6.18.yfrom

Sebasteuo:fix/mmal-vchiq-security-6.18Sebasteuo/linux:fix/mmal-vchiq-security-6.18Copy head branch name to clipboard