Fix page corruption caused by racy check in _freepages
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 v5.10.168 by commit 0a626e27f984dfbe96bd8e4fd08f20a2ede3ea23, it was introduced in version v5.10 by commit e320d3012d25b1fb5f3df4edb7bd44a1c362ec10. For more details please see the references link.