Expected Behavior Violation Affecting kernel-rt-debug-modules-extra package, versions <0:4.18.0-477.10.1.rt7.274.el8_8
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Test your applications- Snyk ID SNYK-CENTOS8-KERNELRTDEBUGMODULESEXTRA-3018448
- published 7 Sep 2022
- disclosed 30 May 2022
How to fix?
Upgrade Centos:8 kernel-rt-debug-modules-extra to version 0:4.18.0-477.10.1.rt7.274.el8_8 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-modules-extra package and not the kernel-rt-debug-modules-extra package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
An issue was discovered the x86 KVM subsystem in the Linux kernel before 5.18.17. Unprivileged guest users can compromise the guest kernel because TLB flush operations are mishandled in certain KVM_VCPU_PREEMPTED situations.
References
- https://access.redhat.com/security/cve/CVE-2022-39189
- https://bugs.chromium.org/p/project-zero/issues/detail?id=2309
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.17
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6cd88243c7e03845a450795e134b488fc2afb736
- https://github.com/torvalds/linux/commit/6cd88243c7e03845a450795e134b488fc2afb736
- https://security.netapp.com/advisory/ntap-20230214-0007/
- https://www.debian.org/security/2023/dsa-5480
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html