{"schema":"threatline.record/2","record":{"id":"CVE-2026-98466","aliases":[],"summary":"KVM: arm64: Transfer the hyp stack pages out of the host stage-2","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: Transfer the hyp stack pages out of the host stage-2\n\nfix_host_ownership() walks only the linear-map alias of each memblock\nregion, and the per-CPU hyp stack, mapped in the private VA range for\nits guard page, has none.\n\nWalk each stack's VA range with the same walker.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98466","source_modified_at":"2026-10-19T09:20:04.397Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"1a919b17ef012ca0572bae759c27e5ea02bfb47f","lessThan":"e5dd2a91a7ae3a276e6d79806127e923936e241b","status":"affected","versionType":"git"},{"version":"1a919b17ef012ca0572bae759c27e5ea02bfb47f","lessThan":"22df195bff84300a3f04813d6148765c77ac565a","status":"affected","versionType":"git"},{"version":"1a919b17ef012ca0572bae759c27e5ea02bfb47f","lessThan":"3a8c562892b96f35bba1e00d5e455a15963bbb92","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98466","source_modified_at":"2026-10-19T09:20:04.397Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"5.19","status":"affected"},{"version":"0","lessThan":"5.19","status":"unaffected","versionType":"semver"},{"version":"6.18.55","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.9","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}],"defaultStatus":"affected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98466","source_modified_at":"2026-10-19T09:20:04.397Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"22df195bff84300a3f04813d6148765c77ac565a","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98466","source_modified_at":"2026-10-19T09:20:04.397Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"3a8c562892b96f35bba1e00d5e455a15963bbb92","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00198,"percentile":0.09057,"score_date":"2026-10-23"},"published_at":"2026-10-18T15:15:18.414Z","modified_at":"2026-10-19T09:20:04.397Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98466","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:20:04.397Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98466","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://git.kernel.org/stable/c/e5dd2a91a7ae3a276e6d79806127e923936e241b"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/22df195bff84300a3f04813d6148765c77ac565a"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/3a8c562892b96f35bba1e00d5e455a15963bbb92"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-19T09:20:04.397Z","content_hash":"b5df212500408abd99bcaee1b907e35703945d6557e94a2cb5529fb8de8e90c3"}}