CVEvulnerability

CVE-2024-36953

5.5 MEDIUM Published 2024-05-30 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2024-05-30
Last modified
2026-06-17
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
4.4 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-476

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.

Affected configurations

• linux linux kernel (>= 4.7 < 5.10.217) • linux linux kernel (>= 5.11 < 5.15.159) • linux linux kernel (>= 5.16 < 6.1.91) • linux linux kernel (>= 6.2 < 6.6.31) • linux linux kernel (>= 6.7 < 6.8.10) • linux linux kernel 6.9 • debian debian linux 10.0

Related

Weakness · CWE (1)

  • CWE-476 NULL Pointer Dereference weakness

References