{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2025-68239 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-68239 is a vulnerability in Linux, published on 16 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-2025-68239 and fix it if it is affected.\n\nWhat it is: CVE-2025-68239 is a vulnerability in Linux, published on 16 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-2025-68239 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-2025-68239/ (Markdown: https://insights.sbomify.com/CVE-2025-68239/index.md)","id":"CVE-2025-68239","markdown":"https://insights.sbomify.com/CVE-2025-68239/index.md","name":"CVE-2025-68239","record":{"aliases":["AZL-72499","BELL-CVE-2025-68239","DEBIAN-CVE-2025-68239","GHSA-6286-qq46-83p9","ROOT-OS-DEBIAN-11-CVE-2025-68239","ROOT-OS-DEBIAN-12-CVE-2025-68239","ROOT-OS-DEBIAN-13-CVE-2025-68239","ROOT-OS-UBUNTU-2204-CVE-2025-68239","ROOT-OS-UBUNTU-2404-CVE-2025-68239","UBUNTU-CVE-2025-68239"],"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":"high_privilege","summary":"A local attacker with high privileges can cause write failures on executable files by triggering an error in binfmt_misc registration, leading to a denial of service.","user_interaction":"not_required","vuln_class":"other"},"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\nbinfmt_misc: restore write access before closing files opened by open_exec()\n\nbm_register_write() opens an executable file using open_exec(), which\ninternally calls do_open_execat() and denies write access on the file to\navoid modification while it is being executed.\n\nHowever, when an error occurs, bm_register_write() closes the file using\nfilp_close() directly. This does not restore the write permission, which\nmay cause subsequent write operations on the same file to fail.\n\nFix this by calling exe_file_allow_write_access() before filp_close() to\nrestore the write permission properly.","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":"binfmt_misc: restore write access before closing files opened by open_exec()","id":"CVE-2025-68239","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"other","year":"2025"},"n_packages":0,"n_references":6,"next":{"headline":"nilfs2: avoid having an active sc_timer before freeing sci","id":"CVE-2025-68240"},"packages":[],"prev":{"headline":"mtd: rawnand: cadence: fix DMA device NULL pointer dereference","id":"CVE-2025-68238"},"products":["Linux"],"published":"2025-12-16","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":"2026-10-15","vendors":["Linux"]},"summary":"A local attacker with high privileges can cause write failures on executable files by triggering an error in binfmt_misc registration, leading to a denial of service.","url":"https://insights.sbomify.com/CVE-2025-68239/"}