SB2025050429 - NULL pointer dereference in Linux kernel kvm vmx
Published: May 4, 2025 Updated: May 10, 2025
Security Bulletin ID
SB2025050429
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) NULL pointer dereference (CVE-ID: CVE-2022-49933)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the hv_enable_l2_tlb_flush(), vmx_hardware_disable() and vmx_exit() functions in arch/x86/kvm/vmx/vmx.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.