CVE-2024-26691

CVE Details

Release Date:	2024-04-03
Impact:	Low	What is this?

Description

In the Linux kernel, the following vulnerability has been resolved:\nKVM: arm64: Fix circular locking dependency\nThe rule inside kvm enforces that the vcpu->mutex is taken *inside*\nkvm->lock. The rule is violated by the pkvm_create_hyp_vm() which acquires\nthe kvm->lock while already holding the vcpu->mutex lock from\nkvm_vcpu_ioctl(). Avoid the circular locking dependency altogether by\nprotecting the hyp vm handle with the config_lock, much like we already\ndo for other forms of VM-scoped data.

See more information about CVE-2024-26691 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

Base Score:	4.7
Vector String:	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Version:	3.1
Attack Vector:	Local
Attack Complexity:	High
Privileges Required:	Low
User Interaction:	None
Scope:	Unchanged
Confidentiality Impact:	None
Integrity Impact:	None
Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 9 (kernel)	ELSA-2024-9315	2024-11-14