SB20240608231 - Improper locking in Linux kernel arm64 kvm
Published: June 8, 2024 Updated: May 13, 2025
Security Bulletin ID
SB20240608231
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper locking (CVE-ID: CVE-2024-26691)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the kvm_hyp_reserve(), __pkvm_create_hyp_vm() and pkvm_create_hyp_vm() functions in arch/arm64/kvm/pkvm.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/3d16cebf01127f459dcfeb79ed77bd68b124c228
- https://git.kernel.org/stable/c/3ab1c40a1e915e350d9181a4603af393141970cc
- https://git.kernel.org/stable/c/10c02aad111df02088d1a81792a709f6a7eca6cc
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.18
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.6
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8