SB2024070428 - Incorrect calculation in Linux kernel include nvhe
Published: July 4, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024070428
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) Incorrect calculation (CVE-ID: CVE-2021-47450)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to incorrect calculation within the hyp_get_page() function in arch/arm64/kvm/hyp/nvhe/page_alloc.c, within the host_s2_zalloc_pages_exact() function in arch/arm64/kvm/hyp/nvhe/mem_protect.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.