{"id":"CVE-2026-98466","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.","modified":"2026-10-20T02:30:35.033794863Z","published":"2026-10-18T15:15:18.414Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98466.json"},"references":[{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"},{"type":"WEB","url":"https://git.kernel.org/stable/c/22df195bff84300a3f04813d6148765c77ac565a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3a8c562892b96f35bba1e00d5e455a15963bbb92"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e5dd2a91a7ae3a276e6d79806127e923936e241b"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98466.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98466"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"1a919b17ef012ca0572bae759c27e5ea02bfb47f"},{"fixed":"e5dd2a91a7ae3a276e6d79806127e923936e241b"},{"fixed":"22df195bff84300a3f04813d6148765c77ac565a"},{"fixed":"3a8c562892b96f35bba1e00d5e455a15963bbb92"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98466.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.19.0"},{"fixed":"6.18.55"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.9"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98466.json"}}],"schema_version":"1.9.0"}