{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-98466 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-98466 is a high-severity vulnerability in Linux, published on 18 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-98466 and fix it if it is affected.\n\nWhat it is: CVE-2026-98466 is a high-severity vulnerability in Linux, published on 18 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-98466 in the wild and no public exploit code.\n\nAffected product: Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-98466/ (Markdown: https://insights.sbomify.com/CVE-2026-98466/index.md)","id":"CVE-2026-98466","markdown":"https://insights.sbomify.com/CVE-2026-98466/index.md","name":"CVE-2026-98466","record":{"aliases":["AZL-108924","BELL-CVE-2026-98466","DEBIAN-CVE-2026-98466","GHSA-7374-3pfm-f9q8","UBUNTU-CVE-2026-98466"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["privilege_escalation","code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel KVM","requires_auth":"low_privilege","summary":"A flaw in Linux kernel KVM arm64 allows local attackers to escalate privileges by exploiting improper hypervisor stack page ownership handling.","user_interaction":"not_required","vuln_class":"privilege_escalation"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":8.2,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"cwes":[],"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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"KVM: arm64: Transfer the hyp stack pages out of the host stage-2","id":"CVE-2026-98466","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"privilege_escalation","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"KVM: arm64: nv: Fix null ptr deref on nested wp/unmap, teardown race","id":"CVE-2026-98467"},"packages":[],"prev":{"headline":"RISC-V: KVM: Serialize IMSIC attributes with vCPU migration","id":"CVE-2026-98465"},"products":["Linux"],"published":"2026-10-18","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-24","vendors":["Linux"]},"summary":"A flaw in Linux kernel KVM arm64 allows local attackers to escalate privileges by exploiting improper hypervisor stack page ownership handling.","url":"https://insights.sbomify.com/CVE-2026-98466/"}