AZL-6535 CVE-2021-28375 affecting package kernel for versions less than 5.10.78.1-1

An issue was discovered in the Linux kernel through 5.11.6. fastrpcinternalinvoke in drivers/misc/fastrpc.c does not prevent user applications from sending kernel RPC messages, aka CID-20c40794eb85. This is a related issue to CVE-2019-2308...