FKIE_CVE-2026-80699

Vulnerability from fkie_nvd - Published: 2026-08-28 08:16 - Updated: 2026-08-28 08:16
Severity
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8a570b19b4b16a8a3b5ffa2b332bd5613110b2d8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f78f08b38a7f121c7d6b3e41002d9de7fd3c9189
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "Documentation/arch/arm64/silicon-errata.rst",
            "arch/arm64/kvm/vgic/vgic-v3.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "f78f08b38a7f121c7d6b3e41002d9de7fd3c9189",
              "status": "affected",
              "version": "6dd333c8942b2e5bb5927af843b56ec2857db7c7",
              "versionType": "git"
            },
            {
              "lessThan": "8a570b19b4b16a8a3b5ffa2b332bd5613110b2d8",
              "status": "affected",
              "version": "6dd333c8942b2e5bb5927af843b56ec2857db7c7",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "Documentation/arch/arm64/silicon-errata.rst",
            "arch/arm64/kvm/vgic/vgic-v3.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.19"
            },
            {
              "lessThan": "6.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: vgic: Avoid double-deactivate of IRQs in the nested context\n\nIn the nested state, the physical interrupt has already been\ndeactivated through the HW bit in the LR. The extra deactivation\nwould be harmless but can hit an errata case on AmpereOne, so\navoid it here.\n\nOn AmpereOne, deactivating a physical interrupt through\nICC_DIR_EL1 or ICC_EOIR1_EL1 (depending on EOImode) which is not\nactive, but is the highest priority pending interrupt causes the\ncpu to lose the interrupt pending state and also prevents the\ndelivery of future interrupts."
    }
  ],
  "id": "CVE-2026-80699",
  "lastModified": "2026-08-28T08:16:55.410",
  "metrics": {},
  "published": "2026-08-28T08:16:55.410",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/8a570b19b4b16a8a3b5ffa2b332bd5613110b2d8"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f78f08b38a7f121c7d6b3e41002d9de7fd3c9189"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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