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Red Hat: CVE-2021-43056: Important: kernel security, bug fix, and enhancement update (RHSA-2022:1988)

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Red Hat: CVE-2021-43056: Important: kernel security, bug fix, and enhancement update (RHSA-2022:1988)

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:C)
Published
10/28/2021
Created
05/14/2022
Added
05/13/2022
Modified
05/13/2022

Description

An issue was discovered in the Linux kernel for powerpc before 5.14.15. It allows a malicious KVM guest to crash the host, when the host is running on Power8, due to an arch/powerpc/kvm/book3s_hv_rmhandlers.S implementation bug in the handling of the SRR1 register values.

Solution(s)

  • redhat-upgrade-kernel

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