{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-98505 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-98505 is a vulnerability in Linux, published on 18 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-98505 and fix it if it is affected.\n\nWhat it is: CVE-2026-98505 is a vulnerability in Linux, published on 18 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-98505 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-2026-98505/ (Markdown: https://insights.sbomify.com/CVE-2026-98505/index.md)","id":"CVE-2026-98505","markdown":"https://insights.sbomify.com/CVE-2026-98505/index.md","name":"CVE-2026-98505","record":{"aliases":["AZL-108903","BELL-CVE-2026-98505","DEBIAN-CVE-2026-98505","GHSA-mr9h-5fpp-c352","UBUNTU-CVE-2026-98505"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["data_modify"],"network_reachable":"unknown","non_default_config":false,"product_category":"Linux kernel","requires_auth":"none","summary":"A race condition in the Linux kernel's DAMON virtual address module can cause loss of hardware-updated page table bits, potentially leading to data corruption.","user_interaction":"not_required","vuln_class":"race_condition"},"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\nmm/damon/vaddr: avoid hw-driven pte updates during damon_hugetlb_mkold()\n\ndamon_hugetlb_mkold() reads the page table entry into a local variable,\nunsets the accessed bit in the variable, and updates the page table entry\nwith the updated variable value.  If hardware updates the same page table\nentry in parallel, the hw updates could be lost.  For example,\nhardware-updated dirty bits might be lost.\n\nAvoid the parallel updates by clearing the page table entry when reading\nit together, using huge_ptep_get_and_clear().  If a parallel write to the\nmemory is made after the clearing, the hw will see the page table entry is\ncleared, trigger page fault and wait until it is handled.  The page fault\nhandling will wait for damon_hugetlb_mkold() due to the page table lock.\n\nBecause hugetlbfs is an in-memory file system and hugetlb pages cannot be\nreclaimed, no critical issue is expected to my best knowledge.  But\ndefinitely this is a nasty bug that should be fixed sooner rather than\nlater.\n\nThe issue was discovered [1] by Sashiko.","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":"mm/damon/vaddr: avoid hw-driven pte updates during damon_hugetlb_mkold()","id":"CVE-2026-98505","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"race_condition","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"mm/hugetlb: do not dissolve gigantic pages without runtime support","id":"CVE-2026-98506"},"packages":[],"prev":{"headline":"PCI: of_property: Omit bus properties without a subordinate bus","id":"CVE-2026-98504"},"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":"2026-10-21","vendors":["Linux"]},"summary":"A race condition in the Linux kernel's DAMON virtual address module can cause loss of hardware-updated page table bits, potentially leading to data corruption.","url":"https://insights.sbomify.com/CVE-2026-98505/"}