Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2024-26691

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
03/04/2024
Last modified:
27/02/2025

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> KVM: arm64: Fix circular locking dependency<br /> <br /> The rule inside kvm enforces that the vcpu-&gt;mutex is taken *inside*<br /> kvm-&gt;lock. The rule is violated by the pkvm_create_hyp_vm() which acquires<br /> the kvm-&gt;lock while already holding the vcpu-&gt;mutex lock from<br /> kvm_vcpu_ioctl(). Avoid the circular locking dependency altogether by<br /> protecting the hyp vm handle with the config_lock, much like we already<br /> do for other forms of VM-scoped data.

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:*:*:*:*:*:*:*:* 6.6.18 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.7 (including) 6.7.6 (excluding)
cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.8:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.8:rc4:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools