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

Vulnerability from cvelistv5 – Published: 2024-05-30 15:35 – Updated: 2025-05-04 09:12
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
CWE
Assigner
References
Impacted products
Vendor Product Version
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)
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    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)
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Sightings

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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.



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