CVE-2024-36953
4.4
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 7d450e2821710718fd6703e9c486249cee913bab < 4404465a1bee3607ad90a4c5f9e16dfd75b85728 | affected |
| Linux | Linux | 7d450e2821710718fd6703e9c486249cee913bab < 17db92da8be5dd3bf63c01f4109fe47db64fc66f | affected |
| Linux | Linux | 7d450e2821710718fd6703e9c486249cee913bab < 3a5b0378ac6776c7c31b18e0f3c1389bd6005e80 | affected |
| Linux | Linux | 7d450e2821710718fd6703e9c486249cee913bab < 8d6a1c8e3de36cb0f5e866f1a582b00939e23104 | affected |
| Linux | Linux | 7d450e2821710718fd6703e9c486249cee913bab < 01981276d64e542c177b243f7c979fee855d5487 | affected |
| Linux | Linux | 7d450e2821710718fd6703e9c486249cee913bab < 6ddb4f372fc63210034b903d96ebbeb3c7195adb | affected |
| Linux | Linux | 4.7 | affected |
| Linux | Linux | 0 < 4.7 | unaffected |
| Linux | Linux | 5.10.217 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.159 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.91 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.31 <= 6.6.* | unaffected |
| Linux | Linux | 6.8.10 <= 6.8.* | unaffected |
| Linux | Linux | 6.9 <= * | unaffected |
Weaknesses
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
CVE Program Container
Additional References
- https://git.kernel.org/stable/c/4404465a1bee3607ad90a4c5f9e16dfd75b85728
- https://git.kernel.org/stable/c/17db92da8be5dd3bf63c01f4109fe47db64fc66f
- https://git.kernel.org/stable/c/3a5b0378ac6776c7c31b18e0f3c1389bd6005e80
- https://git.kernel.org/stable/c/8d6a1c8e3de36cb0f5e866f1a582b00939e23104
- https://git.kernel.org/stable/c/01981276d64e542c177b243f7c979fee855d5487
- https://git.kernel.org/stable/c/6ddb4f372fc63210034b903d96ebbeb3c7195adb
- https://lists.debian.org/debian-lts-announce/2024/06/msg00019.html
References
- https://git.kernel.org/stable/c/4404465a1bee3607ad90a4c5f9e16dfd75b85728
- https://git.kernel.org/stable/c/17db92da8be5dd3bf63c01f4109fe47db64fc66f
- https://git.kernel.org/stable/c/3a5b0378ac6776c7c31b18e0f3c1389bd6005e80
- https://git.kernel.org/stable/c/8d6a1c8e3de36cb0f5e866f1a582b00939e23104
- https://git.kernel.org/stable/c/01981276d64e542c177b243f7c979fee855d5487
- https://git.kernel.org/stable/c/6ddb4f372fc63210034b903d96ebbeb3c7195adb
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