{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2025-40314 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-40314 is an use after free vulnerability in Linux, published on 8 Dec 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-2025-40314 and fix it if it is affected.\n\nWhat it is: CVE-2025-40314 is an use after free vulnerability in Linux, published on 8 Dec 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-2025-40314 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-2025-40314/ (Markdown: https://insights.sbomify.com/CVE-2025-40314/index.md)","id":"CVE-2025-40314","markdown":"https://insights.sbomify.com/CVE-2025-40314/index.md","name":"CVE-2025-40314","record":{"aliases":["BELL-CVE-2025-40314","DEBIAN-CVE-2025-40314","GHSA-5pr8-9989-4xqp","ROOT-OS-DEBIAN-11-CVE-2025-40314","ROOT-OS-DEBIAN-12-CVE-2025-40314","ROOT-OS-DEBIAN-13-CVE-2025-40314","ROOT-OS-UBUNTU-2204-CVE-2025-40314","ROOT-OS-UBUNTU-2404-CVE-2025-40314","UBUNTU-CVE-2025-40314"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel USB driver","requires_auth":"none","summary":"A use-after-free in the Linux kernel's cdns3 USB gadget driver allows local attackers to cause denial of service or execute arbitrary code.","user_interaction":"not_required","vuln_class":"use_after_free"},"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\nusb: cdns3: gadget: Use-after-free during failed initialization and exit of cdnsp gadget\n\nIn the __cdnsp_gadget_init() and cdnsp_gadget_exit() functions, the gadget\nstructure (pdev-\u003egadget) was freed before its endpoints.\nThe endpoints are linked via the ep_list in the gadget structure.\nFreeing the gadget first leaves dangling pointers in the endpoint list.\nWhen the endpoints are subsequently freed, this results in a use-after-free.\n\nFix:\nBy separating the usb_del_gadget_udc() operation into distinct \"del\" and\n\"put\" steps, cdnsp_gadget_free_endpoints() can be executed prior to the\nfinal release of the gadget structure with usb_put_gadget().\n\nA patch similar to bb9c74a5bd14(\"usb: dwc3: gadget: Free gadget structure\n only after freeing endpoints\").","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":"usb: cdns3: gadget: Use-after-free during failed initialization and exit of cdnsp gadget","id":"CVE-2025-40314","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"use_after_free","year":"2025"},"n_packages":0,"n_references":6,"next":{"headline":"usb: gadget: f_fs: Fix epfile null pointer access after ep enable.","id":"CVE-2025-40315"},"packages":[],"prev":{"headline":"ntfs3: pretend $Extend records as regular files","id":"CVE-2025-40313"},"products":["Linux"],"published":"2025-12-08","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":"2026-05-11","vendors":["Linux"]},"summary":"A use-after-free in the Linux kernel's cdns3 USB gadget driver allows local attackers to cause denial of service or execute arbitrary code.","url":"https://insights.sbomify.com/CVE-2025-40314/"}