{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-89501 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-89501 is a high-severity vulnerability in Linux, published on 11 Sep 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-2026-89501 and fix it if it is affected.\n\nWhat it is: CVE-2026-89501 is a high-severity vulnerability in Linux, published on 11 Sep 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-2026-89501 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-2026-89501/ (Markdown: https://insights.sbomify.com/CVE-2026-89501/index.md)","id":"CVE-2026-89501","markdown":"https://insights.sbomify.com/CVE-2026-89501/index.md","name":"CVE-2026-89501","record":{"aliases":["BELL-CVE-2026-89501","DEBIAN-CVE-2026-89501","GHSA-9677-q555-56wx","UBUNTU-CVE-2026-89501"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A race condition in the Linux kernel ring buffer allows attackers to cause a denial of service by triggering concurrent subbuffer resizing and page allocation.","user_interaction":"not_required","vuln_class":"race_condition"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nring-buffer: Hold cpu_buffer::lock when resizing a subbuf\n\nBecause, ring_buffer_subbuf_order_set() can clear cpu_buffer-\u003efree_page,\nhold cpu_buffer-\u003elock to prevent races with\nring_buffer_alloc_read_page() and ring_buffer_free_read_page().","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":"ring-buffer: Hold cpu_buffer::lock when resizing a subbuf","id":"CVE-2026-89501","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"race_condition","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"ring-buffer: Free cpu_buffer::free_page with subbuf_order","id":"CVE-2026-89502"},"packages":[],"prev":{"headline":"ring-buffer: Make cpu_buffer::free_page a buffer_data_read_page","id":"CVE-2026-89500"},"products":["Linux"],"published":"2026-09-11","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":"2026-10-19","vendors":["Linux"]},"summary":"A race condition in the Linux kernel ring buffer allows attackers to cause a denial of service by triggering concurrent subbuffer resizing and page allocation.","url":"https://insights.sbomify.com/CVE-2026-89501/"}