{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2025-40047 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-40047 is a high-severity vulnerability in Linux, published on 28 Oct 2025. 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-2025-40047 and fix it if it is affected.\n\nWhat it is: CVE-2025-40047 is a high-severity vulnerability in Linux, published on 28 Oct 2025. 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-2025-40047 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-2025-40047/ (Markdown: https://insights.sbomify.com/CVE-2025-40047/index.md)","id":"CVE-2025-40047","markdown":"https://insights.sbomify.com/CVE-2025-40047/index.md","name":"CVE-2025-40047","record":{"aliases":["BELL-CVE-2025-40047","DEBIAN-CVE-2025-40047","GHSA-2r8v-pxwr-9h89","ROOT-OS-DEBIAN-13-CVE-2025-40047","ROOT-OS-UBUNTU-2404-CVE-2025-40047","UBUNTU-CVE-2025-40047"],"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 io_uring waitid implementation can lead to denial of service by failing to prune wait queue entries during cancellation.","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\nio_uring/waitid: always prune wait queue entry in io_waitid_wait()\n\nFor a successful return, always remove our entry from the wait queue\nentry list. Previously this was skipped if a cancelation was in\nprogress, but this can race with another invocation of the wait queue\nentry callback.","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":"io_uring/waitid: always prune wait queue entry in io_waitid_wait()","id":"CVE-2025-40047","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"race_condition","year":"2025"},"n_packages":0,"n_references":3,"next":{"headline":"uio_hv_generic: Let userspace take care of interrupt mask","id":"CVE-2025-40048"},"packages":[],"prev":{"headline":"io_uring/zcrx: fix overshooting recv limit","id":"CVE-2025-40046"},"products":["Linux"],"published":"2025-10-28","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 race condition in the Linux kernel io_uring waitid implementation can lead to denial of service by failing to prune wait queue entries during cancellation.","url":"https://insights.sbomify.com/CVE-2025-40047/"}