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CVE-2024-36953 (GCVE-0-2024-36953)

Vulnerability from cvelistv5 – Published: 2024-05-30 15:35 – Updated: 2026-05-11 20:17
VLAI
Title
KVM: arm64: vgic-v2: Check for non-NULL vCPU in vgic_v2_parse_attr()
Summary
In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-v2: Check for non-NULL vCPU in vgic_v2_parse_attr() vgic_v2_parse_attr() is responsible for finding the vCPU that matches the user-provided CPUID, which (of course) may not be valid. If the ID is invalid, kvm_get_vcpu_by_id() returns NULL, which isn't handled gracefully. Similar to the GICv3 uaccess flow, check that kvm_get_vcpu_by_id() actually returns something and fail the ioctl if not.
Severity
4.4 (Medium)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-05-31 18:25 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 7d450e2821710718fd6703e9c486249cee913bab , < 4404465a1bee3607ad90a4c5f9e16dfd75b85728 (git)
Affected: 7d450e2821710718fd6703e9c486249cee913bab , < 17db92da8be5dd3bf63c01f4109fe47db64fc66f (git)
Affected: 7d450e2821710718fd6703e9c486249cee913bab , < 3a5b0378ac6776c7c31b18e0f3c1389bd6005e80 (git)
Affected: 7d450e2821710718fd6703e9c486249cee913bab , < 8d6a1c8e3de36cb0f5e866f1a582b00939e23104 (git)
Affected: 7d450e2821710718fd6703e9c486249cee913bab , < 01981276d64e542c177b243f7c979fee855d5487 (git)
Affected: 7d450e2821710718fd6703e9c486249cee913bab , < 6ddb4f372fc63210034b903d96ebbeb3c7195adb (git)
guessed Create a notification for this product.
Linux Linux Affected: 4.7
Unaffected: 0 , < 4.7 (semver)
Unaffected: 5.10.217 , ≤ 5.10.* (semver)
Unaffected: 5.15.159 , ≤ 5.15.* (semver)
Unaffected: 6.1.91 , ≤ 6.1.* (semver)
Unaffected: 6.6.31 , ≤ 6.6.* (semver)
Unaffected: 6.8.10 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-06-28T07:55:35+00:00",
      "cve": "CVE-2024-36953",
      "id": "CVE-2024-36953",
      "initial_release_date": "2024-05-30T00:00:00+00:00",
      "product_status:fixed": "150",
      "product_status:known_affected": "14",
      "product_status:known_not_affected": "136",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: KVM: arm64: vgic-v2: Check for non-NULL vCPU in vgic_v2_parse_attr()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-36953.json",
      "version": "3"
    },
    "vulnrichment": {
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\"versionType\": \"semver\", \"lessThanOrEqual\": \"6.8.*\"}, {\"status\": \"unaffected\", \"version\": \"6.9\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"arch/arm64/kvm/vgic/vgic-kvm-device.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/4404465a1bee3607ad90a4c5f9e16dfd75b85728\"}, {\"url\": \"https://git.kernel.org/stable/c/17db92da8be5dd3bf63c01f4109fe47db64fc66f\"}, {\"url\": \"https://git.kernel.org/stable/c/3a5b0378ac6776c7c31b18e0f3c1389bd6005e80\"}, {\"url\": \"https://git.kernel.org/stable/c/8d6a1c8e3de36cb0f5e866f1a582b00939e23104\"}, {\"url\": \"https://git.kernel.org/stable/c/01981276d64e542c177b243f7c979fee855d5487\"}, {\"url\": \"https://git.kernel.org/stable/c/6ddb4f372fc63210034b903d96ebbeb3c7195adb\"}], \"x_generator\": {\"engine\": \"bippy-9e1c9544281a\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nKVM: arm64: vgic-v2: Check for non-NULL vCPU in vgic_v2_parse_attr()\\n\\nvgic_v2_parse_attr() is responsible for finding the vCPU that matches\\nthe user-provided CPUID, which (of course) may not be valid. If the ID\\nis invalid, kvm_get_vcpu_by_id() returns NULL, which isn\u0027t handled\\ngracefully.\\n\\nSimilar to the GICv3 uaccess flow, check that kvm_get_vcpu_by_id()\\nactually returns something and fail the ioctl if not.\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-11-05T09:28:43.213Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-36953\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-11-05T09:28:43.213Z\", \"dateReserved\": \"2024-05-30T15:25:07.080Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-30T15:35:48.070Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.