memcg: fix possible use-after-free in memcgwriteevent_control()
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 v5.10.159 by commit f1f7f36cf682fa59db15e2089039a2eeb58ff2ad, it was introduced in version v3.14 by commit 347c4a8747104a945ecced358944e42879176ca5. For more details please see the references link.