云虫漏洞情报

CVE-2026-80699 - In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic: Avoid double-deactivate of IRQs in the nested context In the nested state, the physical interrupt has already been deactivated through the HW bit in the LR. The extra deactivation would be harmless but can hit an errata case on AmpereOne, so avoid it here. On AmpereOne, deactivating a physical interrupt through ICC_DIR_EL1 or ICC_EOIR1_EL1 (depending on EOImode) which is not active, but is t - 漏洞详情

漏洞编号:CVE-2026-80699

风险等级:未知

漏洞来源:CVE

CVE 编号:CVE-2026-80699

CNNVD 编号:-

厂商/产品:- / -

影响范围:-

CWE:-

发布/更新时间:2026-08-28 / 2026-08-28

漏洞描述

In the Linux kernel, the following vulnerability has been resolved:

KVM: arm64: vgic: Avoid double-deactivate of IRQs in the nested context

In the nested state, the physical interrupt has already been
deactivated through the HW bit in the LR. The extra deactivation
would be harmless but can hit an errata case on AmpereOne, so
avoid it here.

On AmpereOne, deactivating a physical interrupt through
ICC_DIR_EL1 or ICC_EOIR1_EL1 (depending on EOImode) which is not
active, but is the highest priority pending interrupt causes the
cpu to lose the interrupt pending state and also prevents the
delivery of future interrupts.

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