SB20260425163 - Incorrect calculation in Linux kernel arm64 kvm
Published: April 25, 2026
Security Bulletin ID
SB20260425163
CSH 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 vulnerability.
1) Incorrect calculation (CVE-ID: CVE-2026-31553)
CWE-ID: CWE-682 - Incorrect Calculation
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to an incorrect pointer calculation in __kvm_at_swap_desc() when swapping stage-1 or stage-2 descriptors. A local user can trigger the faulty descriptor address computation to cause a denial of service.
Remediation
Install update from vendor's website.