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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-80699

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

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Status
Published
Published
Updated
Assigning organization
Linux

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 6dd333c8942b2e5bb5927af843b56ec2857db7c7 to < f78f08b38a7f121c7d6b3e41002d9de7fd3c9189affected
  • 6dd333c8942b2e5bb5927af843b56ec2857db7c7 to < 8a570b19b4b16a8a3b5ffa2b332bd5613110b2d8affected

Linux Linux

Default version status: affected

  • 6.19affected
  • 0 to < 6.19unaffected
  • 7.1.8 to ≤ 7.1.*unaffected
  • 7.2 to ≤ *unaffected

References