CVE-2024-36953

Severity CVSS v4.0:

Pending analysis

Type:

CWE-476 NULL Pointer Dereference

Publication date:

30/05/2024

Last modified:

23/12/2025

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&#39;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.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

5.50

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	4.7 (including)	5.10.217 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.159 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.1.91 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2 (including)	6.6.31 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.7 (including)	6.8.10 (excluding)
cpe:2.3:o:linux:linux_kernel:6.9:rc1::::::
cpe:2.3:o:linux:linux_kernel:6.9:rc2::::::
cpe:2.3:o:linux:linux_kernel:6.9:rc3::::::
cpe:2.3:o:linux:linux_kernel:6.9:rc4::::::
cpe:2.3:o:linux:linux_kernel:6.9:rc5::::::
cpe:2.3:o:linux:linux_kernel:6.9:rc6::::::
cpe:2.3:o:debian:debian_linux:10.0:::::::*

To consult the complete list of CPE names with products and versions, see this page

CVE-2024-36953

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools