{"id":"CVE-2026-98466","revision":"e631b44d8a02412ab4af1e8489dd8b24","records":[{"revision":"e631b44d8a02412ab4af1e8489dd8b24","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-98466","aliases":[],"title":"KVM: arm64: Transfer the hyp stack pages out of the host stage-2","description":"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.","state":0,"publishedAt":"2026-10-18T15:15:18.414+00:00","modifiedAt":"2026-10-19T09:20:04.397+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"arch/arm64/kvm/hyp/nvhe/setup.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"1a919b17ef012ca0572bae759c27e5ea02bfb47f\",\n                            \"lessThan\": \"e5dd2a91a7ae3a276e6d79806127e923936e241b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"1a919b17ef012ca0572bae759c27e5ea02bfb47f\",\n                            \"lessThan\": \"22df195bff84300a3f04813d6148765c77ac565a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"1a919b17ef012ca0572bae759c27e5ea02bfb47f\",\n                            \"lessThan\": \"3a8c562892b96f35bba1e00d5e455a15963bbb92\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"arch/arm64/kvm/hyp/nvhe/setup.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.19\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.19\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.55\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.9\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/e5dd2a91a7ae3a276e6d79806127e923936e241b","https://git.kernel.org/stable/c/22df195bff84300a3f04813d6148765c77ac565a","https://git.kernel.org/stable/c/3a8c562892b96f35bba1e00d5e455a15963bbb92"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98466","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98466","identifiers":["CVE-2026-98466"]},"retained":false,"historicalAffected":[]}],"coverage":[]}