{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2023-53766 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-53766 is a 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-2023-53766 and fix it if it is affected.\n\nWhat it is: CVE-2023-53766 is a 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-2023-53766 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-2023-53766/ (Markdown: https://insights.sbomify.com/CVE-2023-53766/index.md)","id":"CVE-2023-53766","markdown":"https://insights.sbomify.com/CVE-2023-53766/index.md","name":"CVE-2023-53766","record":{"aliases":["BELL-CVE-2023-53766","DEBIAN-CVE-2023-53766","GHSA-2989-gqx8-wgwx","UBUNTU-CVE-2023-53766"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel JFS","requires_auth":"low_privilege","summary":"A local attacker can cause a denial of service via a NULL pointer dereference in the JFS filesystem when attempting to start a transaction on a read-only mounted filesystem.","user_interaction":"not_required","vuln_class":"null_dereference"},"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\nFS: JFS: Check for read-only mounted filesystem in txBegin\n\n This patch adds a check for read-only mounted filesystem\n in txBegin before starting a transaction potentially saving\n from NULL pointer deref.","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":"FS: JFS: Check for read-only mounted filesystem in txBegin","id":"CVE-2023-53766","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"null_dereference","year":"2023"},"n_packages":0,"n_references":8,"next":{"headline":"wifi: ath12k: fix memory leak in ath12k_qmi_driver_event_work()","id":"CVE-2023-53767"},"packages":[],"prev":{"headline":"dm cache: free background tracker's queued work in btracker_destroy","id":"CVE-2023-53765"},"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 local attacker can cause a denial of service via a NULL pointer dereference in the JFS filesystem when attempting to start a transaction on a read-only mounted filesystem.","url":"https://insights.sbomify.com/CVE-2023-53766/"}