{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2025-39973 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-39973 is a high-severity denial of service vulnerability in Linux, published on 15 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-2025-39973 and fix it if it is affected.\n\nWhat it is: CVE-2025-39973 is a high-severity denial of service vulnerability in Linux, published on 15 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-2025-39973 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-2025-39973/ (Markdown: https://insights.sbomify.com/CVE-2025-39973/index.md)","id":"CVE-2025-39973","markdown":"https://insights.sbomify.com/CVE-2025-39973/index.md","name":"CVE-2025-39973","record":{"aliases":["AZL-68495","BELL-CVE-2025-39973","DEBIAN-CVE-2025-39973","GHSA-j9g6-49hr-w92p","ROOT-OS-DEBIAN-11-CVE-2025-39973","ROOT-OS-DEBIAN-12-CVE-2025-39973","ROOT-OS-DEBIAN-13-CVE-2025-39973","ROOT-OS-UBUNTU-2404-CVE-2025-39973","UBUNTU-CVE-2025-39973"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel driver","requires_auth":"low_privilege","summary":"A missing validation in the i40e network driver allows a virtual function to cause a denial of service by providing invalid ring lengths.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\ni40e: add validation for ring_len param\n\nThe `ring_len` parameter provided by the virtual function (VF)\nis assigned directly to the hardware memory context (HMC) without\nany validation.\n\nTo address this, introduce an upper boundary check for both Tx and Rx\nqueue lengths. The maximum number of descriptors supported by the\nhardware is 8k-32.\nAdditionally, enforce alignment constraints: Tx rings must be a multiple\nof 8, and Rx rings must be a multiple of 32.","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":"i40e: add validation for ring_len param","id":"CVE-2025-39973","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2025"},"n_packages":0,"n_references":8,"next":{"headline":"tracing/osnoise: Fix slab-out-of-bounds in _parse_integer_limit()","id":"CVE-2025-39974"},"packages":[],"prev":{"headline":"i40e: fix idx validation in i40e_validate_queue_map","id":"CVE-2025-39972"},"products":["Linux"],"published":"2025-10-15","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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-15","vendors":["Linux"]},"summary":"A missing validation in the i40e network driver allows a virtual function to cause a denial of service by providing invalid ring lengths.","url":"https://insights.sbomify.com/CVE-2025-39973/"}