GSD-2022-1004403 cipso: Fix data-races around sysctl.

cipso: Fix data-races around sysctl. 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 v5.15.56 by commit 07b0caf8aeb9b82e6ecc6c292a3e47c7fcdb1148...