Vulnerability in Linux
CVE-2026-89914
In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Sign-extend VA for range-based TLBI invalidation When the decode_range_tlbi() helper was moved to be used for S1 TLBIs, the required sign extension was omitted. Add it. As a result, special care must be taken to not overflow PA bits when this is used for S2 invalidation.
CVSS v3 metric
CVSS v3 base score 9.3 (Critical). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Linux — versions 6.16
References
Frequently asked questions
- What is CVE-2026-89914?
- CVE-2026-89914 is a critical-severity vulnerability in Linux. CVSS score: 9.3/10. Published 2026-09-16.
- How severe is CVE-2026-89914?
- Critical severity. CVSS v3 base score is 9.3 out of 10.