{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2025-40055 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-40055 is an use after free 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-2025-40055 and fix it if it is affected.\n\nWhat it is: CVE-2025-40055 is an use after free 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-2025-40055 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-2025-40055/ (Markdown: https://insights.sbomify.com/CVE-2025-40055/index.md)","id":"CVE-2025-40055","markdown":"https://insights.sbomify.com/CVE-2025-40055/index.md","name":"CVE-2025-40055","record":{"aliases":["BELL-CVE-2025-40055","DEBIAN-CVE-2025-40055","GHSA-xrxh-pcqg-5r4x","ROOT-OS-DEBIAN-11-CVE-2025-40055","ROOT-OS-DEBIAN-12-CVE-2025-40055","ROOT-OS-DEBIAN-13-CVE-2025-40055","ROOT-OS-UBUNTU-2204-CVE-2025-40055","ROOT-OS-UBUNTU-2404-CVE-2025-40055","UBUNTU-CVE-2025-40055"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A double free vulnerability in the Linux kernel OCFS2 module allows local attackers to cause a denial of service or potentially escalate privileges.","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\nocfs2: fix double free in user_cluster_connect()\n\nuser_cluster_disconnect() frees \"conn-\u003ecc_private\" which is \"lc\" but then\nthe error handling frees \"lc\" a second time.  Set \"lc\" to NULL on this\npath to avoid a double free.","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":"ocfs2: fix double free in user_cluster_connect()","id":"CVE-2025-40055","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"use_after_free","year":"2025"},"n_packages":0,"n_references":8,"next":{"headline":"vhost: vringh: Fix copy_to_iter return value check","id":"CVE-2025-40056"},"packages":[],"prev":{"headline":"f2fs: fix UAF issue in f2fs_merge_page_bio()","id":"CVE-2025-40054"},"products":["Linux"],"published":"2025-10-28","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 double free vulnerability in the Linux kernel OCFS2 module allows local attackers to cause a denial of service or potentially escalate privileges.","url":"https://insights.sbomify.com/CVE-2025-40055/"}