Vulnerability-Lookup

FKIE_CVE-2026-64105

Vulnerability from fkie_nvd - Published: 2026-07-19 16:17 - Updated: 2026-08-12 15:49

Severity

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic: Free private_irqs when init fails after allocation Companion to commit 250f25367b58 ("KVM: arm64: Tear down vGIC on failed vCPU creation"), which added the missing kvm_vgic_vcpu_destroy() call to the kvm_share_hyp() failure path in kvm_arch_vcpu_create(). The kvm_vgic_vcpu_init() failure path immediately above it has the same shape and still needs the same cleanup. Call kvm_vgic_vcpu_destroy() when kvm_vgic_vcpu_init() fails so private IRQs allocated before a redistributor iodev registration failure are released before the failed vCPU is freed.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/173fb86e5519dbe7aabed1f5fa7456152a4a2e38	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/7023900b4988fb6f4a59d304d878003ff562e98d	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e690caa54a6139d98495ac69626807623520babd	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f19c354dbd457759dfcf1195ab4bdba2bb568323	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	7.1
linux	linux_kernel	7.1
linux	linux_kernel	7.1
linux	linux_kernel	7.1

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/arm64/kvm/arm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "173fb86e5519dbe7aabed1f5fa7456152a4a2e38",
              "status": "affected",
              "version": "03b3d00a70b55857439511c1b558ca00a99f4126",
              "versionType": "git"
            },
            {
              "lessThan": "7023900b4988fb6f4a59d304d878003ff562e98d",
              "status": "affected",
              "version": "03b3d00a70b55857439511c1b558ca00a99f4126",
              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "03b3d00a70b55857439511c1b558ca00a99f4126",
              "versionType": "git"
            },
            {
              "lessThan": "f19c354dbd457759dfcf1195ab4bdba2bb568323",
              "status": "affected",
              "version": "03b3d00a70b55857439511c1b558ca00a99f4126",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/arm64/kvm/arm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.10"
            },
            {
              "lessThan": "6.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.92",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.34",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "matchCriteriaId": "11F1574D-E103-4C7C-A865-2F67FCCC845B",
              "versionEndExcluding": "6.12.92",
              "versionStartIncluding": "6.10",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "B1EF7059-E670-45F4-B422-54C40FA86390",
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            {
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: vgic: Free private_irqs when init fails after allocation\n\nCompanion to commit 250f25367b58 (\"KVM: arm64: Tear down vGIC on\nfailed vCPU creation\"), which added the missing kvm_vgic_vcpu_destroy()\ncall to the kvm_share_hyp() failure path in kvm_arch_vcpu_create(). The\nkvm_vgic_vcpu_init() failure path immediately above it has the same\nshape and still needs the same cleanup.\n\nCall kvm_vgic_vcpu_destroy() when kvm_vgic_vcpu_init() fails so private\nIRQs allocated before a redistributor iodev registration failure are\nreleased before the failed vCPU is freed."
    }
  ],
  "id": "CVE-2026-64105",
  "lastModified": "2026-08-12T15:49:13.530",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2026-07-19T16:17:51.780",
  "references": [
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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    },
    {
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      "tags": [
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      ],
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    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "url": "https://git.kernel.org/stable/c/f19c354dbd457759dfcf1195ab4bdba2bb568323"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2026-64105 (GCVE-0-2026-64105)

Vulnerability from cvelistv5 – Published: 2026-07-19 15:40 – Updated: 2026-07-19 15:40

Title

KVM: arm64: vgic: Free private_irqs when init fails after allocation

Summary

Severity

No CVSS data available.

Assigner

Linux mitre root

References

4 references

URL	Tags
https://git.kernel.org/stable/c/173fb86e5519dbe7a…
https://git.kernel.org/stable/c/7023900b4988fb6f4…
https://git.kernel.org/stable/c/e690caa54a6139d98…
https://git.kernel.org/stable/c/f19c354dbd457759d…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 03b3d00a70b55857439511c1b558ca00a99f4126 , < 173fb86e5519dbe7aabed1f5fa7456152a4a2e38 (git) Affected: 03b3d00a70b55857439511c1b558ca00a99f4126 , < 7023900b4988fb6f4a59d304d878003ff562e98d (git) Affected: 03b3d00a70b55857439511c1b558ca00a99f4126 , < e690caa54a6139d98495ac69626807623520babd (git) Affected: 03b3d00a70b55857439511c1b558ca00a99f4126 , < f19c354dbd457759dfcf1195ab4bdba2bb568323 (git)
Linux	Linux	Affected: 6.10 Unaffected: 0 , < 6.10 (semver) Unaffected: 6.12.92 , ≤ 6.12.* (semver) Unaffected: 6.18.34 , ≤ 6.18.* (semver) Unaffected: 7.0.11 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/arm64/kvm/arm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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            {
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              "status": "affected",
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              "versionType": "git"
            },
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            },
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          "vendor": "Linux",
          "versions": [
            {
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              "version": "6.10"
            },
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              "version": "0",
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      ],
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

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FKIE_CVE-2026-64105

CVE-2026-64105 (GCVE-0-2026-64105)

Tags

Sightings

Nomenclature