{"id":"CVE-2026-89914","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-89914","generatedAt":"2026-09-20T13:19:05.181Z","title":"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.","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: Sign-extend VA for range-based TLBI invalidation\n\nWhen the decode_range_tlbi() helper was moved to be used for S1 TLBIs,\nthe required sign extension was omitted. Add it.\n\nAs a result, special care must be taken to not overflow PA bits when\nthis is used for S2 invalidation.","published":"2026-09-16T11:17:00.000Z","lastModified":"2026-09-16T15:18:18.000Z","status":"Received","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":{"version":"3.1","score":9.3,"severity":"CRITICAL","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"},"cwe":[],"affected":[],"epss":{"score":0.00178,"percentile":0.07639,"date":"2026-09-19","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.18%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://git.kernel.org/stable/c/2393470085649f0b973ecceb26fe8fc71edde0c1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/3feb83918e30f0472e058224b926ebfe8a064fac","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/72bce82c4171bf330919ff1b64dc0a36c254ec7d","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-89914","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}