{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2025-40087 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-40087 is a high-severity vulnerability in Linux, published on 30 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-40087 and fix it if it is affected.\n\nWhat it is: CVE-2025-40087 is a high-severity vulnerability in Linux, published on 30 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2025-40087 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-2025-40087/ (Markdown: https://insights.sbomify.com/CVE-2025-40087/index.md)","id":"CVE-2025-40087","markdown":"https://insights.sbomify.com/CVE-2025-40087/index.md","name":"CVE-2025-40087","record":{"aliases":["AZL-69406","BELL-CVE-2025-40087","DEBIAN-CVE-2025-40087","GHSA-527r-239p-grh5","ROOT-OS-DEBIAN-11-CVE-2025-40087","ROOT-OS-DEBIAN-12-CVE-2025-40087","ROOT-OS-DEBIAN-13-CVE-2025-40087","ROOT-OS-UBUNTU-2204-CVE-2025-40087","ROOT-OS-UBUNTU-2404-CVE-2025-40087","UBUNTU-CVE-2025-40087"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"Linux kernel NFSD","requires_auth":"none","summary":"A missing handler in the Linux kernel NFSD FlexFiles layout type causes a crash when a pNFS client sends a LAYOUTCOMMIT operation.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nNFSD: Define a proc_layoutcommit for the FlexFiles layout type\n\nAvoid a crash if a pNFS client should happen to send a LAYOUTCOMMIT\noperation on a FlexFiles layout.","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":"NFSD: Define a proc_layoutcommit for the FlexFiles layout type","id":"CVE-2025-40087","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"null_dereference","year":"2025"},"n_packages":0,"n_references":8,"next":{"headline":"hfsplus: fix slab-out-of-bounds read in hfsplus_strcasecmp()","id":"CVE-2025-40088"},"packages":[],"prev":{"headline":"drm/xe: Don't allow evicting of BOs in same VM in array of VM binds","id":"CVE-2025-40086"},"products":["Linux"],"published":"2025-10-30","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":"2026-08-05","vendors":["Linux"]},"summary":"A missing handler in the Linux kernel NFSD FlexFiles layout type causes a crash when a pNFS client sends a LAYOUTCOMMIT operation.","url":"https://insights.sbomify.com/CVE-2025-40087/"}