description: A flaw was found in the way RTAS handled memory accesses in userspace to kernel communication. On a locked down (usually due to Secure Boot) guest system running on top of PowerVM or KVM hypervisors (pseries platform) a root like local user could use this flaw to further increase their privileges to that of a running kernel.
problem types: CWE-862
affected:
{
product: kernel
vendor: n/a
versions:
status: affected, version: kernel 5.10-rc1
}