Security Advisory

CVE-2022-33745

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2022-07-26 00:00:00

Last updated 2024-08-03 08:09:22

Assigner XEN

CVSS score not scored

State PUBLISHED

Description

insufficient TLB flush for x86 PV guests in shadow mode For migration as well as to work around kernels unaware of L1TF (see XSA-273), PV guests may be run in shadow paging mode. To address XSA-401, code was moved inside a function in Xen. This code movement missed a variable changing meaning / value between old and new code positions. The now wrong use of the variable did lead to a wrong TLB flush condition, omitting flushes where such are necessary.

← Browse all CVEs View on cve.org ↗