perf: Fix list corruption in perfcgroupswitch()
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 v4.14.267 by commit 5d76ed4223403f90421782adb2f20a9ecbc93186, it was introduced in version v4.11 by commit 058fe1c0440e68a1ba3c2270ae43e9f0298b27d8. For more details please see the references link.