tty: Fix out-of-bound vmalloc access in imageblit
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.4.151 by commit 883f7897a25e3ce14a7f274ca4c73f49ac84002a. For more details please see the references link.