apparmor: Fix memleak in aasimplewritetobuffer()
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 v4.19.256 by commit 6500eb3a48ac221051b1791818a1ac74744ef617, it was introduced in version v4.17 by commit a6a52579e52b55448326db88bd9a5740e7c1a037. For more details please see the references link.