5.5

CVE-2024-36953: KVM: arm64: vgic-v2: Check for non-NULL vCPU in vgic_v2_parse_attr()

Analyzed
AliasesUBUNTU-CVE-2024-36953DEBIAN-CVE-2024-36953
Published 30-05-2024Last modified 11-05-2026

Vulnerability summary

CVE-2024-36953 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in debian debian_linux. EPSS estimates a 0.23% chance of exploitation in the next 30 days, higher than 13.9% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 4.4, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.23%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 37 · Related 31
DLA-3843-1DSA-5703-1MGASA-2024-0263MGASA-2024-0266RHSA-2024:7000RHSA-2024:7001

Timeline

  1. 30-05-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.23%

Chance of exploitation in the next 30 days

Percentile

14%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.23% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, administrative account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu127 products
  • linux< 4.15.0-231.243 | < 5.4.0-202.222 | < 5.15.0-118.128 | < 6.8.0-40.40
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 4.15.0-1175.188 | < 5.4.0-1136.146 | < 5.15.0-1067.73 | < 6.8.0-1013.14
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
Linux2 products
  • linux≥ 7d450e2821710718fd6703e9c486249cee913bab, < 4404465a1bee3607ad90a4c5f9e16dfd75b85728 | ≥ 7d450e2821710718fd6703e9c486249cee913bab, < 17db92da8be5dd3bf63c01f4109fe47db64fc66f | ≥ 7d450e2821710718fd6703e9c486249cee913bab, < 3a5b0378ac6776c7c31b18e0f3c1389bd6005e80 | ≥ 7d450e2821710718fd6703e9c486249cee913bab, < 8d6a1c8e3de36cb0f5e866f1a582b00939e23104 | ≥ 7d450e2821710718fd6703e9c486249cee913bab, < 01981276d64e542c177b243f7c979fee855d5487 | ≥ 7d450e2821710718fd6703e9c486249cee913bab, < 6ddb4f372fc63210034b903d96ebbeb3c7195adb | 4.7
  • linux_kernel≥ 4.7, < 5.10.217 | ≥ 5.11, < 5.15.159 | ≥ 5.16, < 6.1.91 | ≥ 6.2, < 6.6.31 | ≥ 6.7, < 6.8.10 | 6.9:rc1 | 6.9:rc2 | 6.9:rc3 | 6.9:rc4 | 6.9:rc5 | 6.9:rc6

3 vendors · 131 products

References

33 links
Show all 33 references