{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-98867 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-98867 is a memory corruption 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-2026-98867 and fix it if it is affected.\n\nWhat it is: CVE-2026-98867 is a memory corruption 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-2026-98867 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-2026-98867/ (Markdown: https://insights.sbomify.com/CVE-2026-98867/index.md)","id":"CVE-2026-98867","markdown":"https://insights.sbomify.com/CVE-2026-98867/index.md","name":"CVE-2026-98867","record":{"aliases":["BELL-CVE-2026-98867","DEBIAN-CVE-2026-98867","GHSA-f472-jf6w-c35h","UBUNTU-CVE-2026-98867"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"none","summary":"A missing bounds check in the Linux kernel dm-pcache driver allows out-of-bounds writes via crafted persistent memory keys, potentially leading to code execution or system crashes.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndm-pcache: bound the logical key offset from persistent memory\n\ncache_key_decode() takes a key's logical off from the cache device and\nlater indexes req_key_tree-\u003esubtrees[] by it in get_subtree(). An off\npast the device forms a subtree pointer outside the array, which\nrb_insert() writes through during replay.\n\nReject a key of zero length, or whose off+len (computed in 64 bits)\nexceeds the device size, before it is used.","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":"dm-pcache: bound the logical key offset from persistent memory","id":"CVE-2026-98867","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"dm-pcache: reject a kset that overruns its segment","id":"CVE-2026-98868"},"packages":[],"prev":{"headline":"sched/cache: Introduce task_struct-\u003esched_cache_grp to fix UAF","id":"CVE-2026-98866"},"products":["Linux"],"published":"2026-10-18","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-19","vendors":["Linux"]},"summary":"A missing bounds check in the Linux kernel dm-pcache driver allows out-of-bounds writes via crafted persistent memory keys, potentially leading to code execution or system crashes.","url":"https://insights.sbomify.com/CVE-2026-98867/"}