{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2023-53990 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-53990 is a high-severity vulnerability in Linux, published on 24 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-2023-53990 and fix it if it is affected.\n\nWhat it is: CVE-2023-53990 is a high-severity vulnerability in Linux, published on 24 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-2023-53990 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-2023-53990/ (Markdown: https://insights.sbomify.com/CVE-2023-53990/index.md)","id":"CVE-2023-53990","markdown":"https://insights.sbomify.com/CVE-2023-53990/index.md","name":"CVE-2023-53990","record":{"aliases":["BELL-CVE-2023-53990","DEBIAN-CVE-2023-53990","GHSA-8hvc-93qx-9q29","UBUNTU-CVE-2023-53990"],"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 SMB3 implementation can lead to a denial of service due to missing locks on the deferred close file list.","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\nSMB3: Add missing locks to protect deferred close file list\n\ncifs_del_deferred_close function has a critical section which modifies\nthe deferred close file list. We must acquire deferred_lock before\ncalling cifs_del_deferred_close function.","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":"SMB3: Add missing locks to protect deferred close file list","id":"CVE-2023-53990","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"race_condition","year":"2023"},"n_packages":0,"n_references":5,"next":{"headline":"drm/msm/dpu: Disallow unallocated resources to be returned","id":"CVE-2023-53991"},"packages":[],"prev":{"headline":"arm64: mm: fix VA-range sanity check","id":"CVE-2023-53989"},"products":["Linux"],"published":"2025-12-24","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 SMB3 implementation can lead to a denial of service due to missing locks on the deferred close file list.","url":"https://insights.sbomify.com/CVE-2023-53990/"}