AZL-6541 CVE-2021-28964 affecting package kernel for versions less than 5.10.78.1-1

A race condition was discovered in getoldroot in fs/btrfs/ctree.c in the Linux kernel through 5.11.8. It allows attackers to cause a denial of service BUG because of a lack of locking on an extent buffer before a cloning operation, aka CID-dbcc7d57bffc...