{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2025-39842 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-39842 is a medium-severity vulnerability in Debian Debian Linux, published on 19 Sep 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-2025-39842 and fix it if it is affected.\n\nWhat it is: CVE-2025-39842 is a medium-severity vulnerability in Debian Debian Linux, published on 19 Sep 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-2025-39842 in the wild and no public exploit code.\n\nAffected product: Debian Debian 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-2025-39842/ (Markdown: https://insights.sbomify.com/CVE-2025-39842/index.md)","id":"CVE-2025-39842","markdown":"https://insights.sbomify.com/CVE-2025-39842/index.md","name":"CVE-2025-39842","record":{"aliases":["AZL-67529","BELL-CVE-2025-39842","DEBIAN-CVE-2025-39842","GHSA-24c6-4vcc-gq5v","ROOT-OS-DEBIAN-12-CVE-2025-39842","ROOT-OS-DEBIAN-13-CVE-2025-39842","ROOT-OS-UBUNTU-2404-CVE-2025-39842","UBUNTU-CVE-2025-39842"],"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 null pointer dereference in the Linux kernel OCFS2 filesystem can cause a system crash during volume dismount.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":5.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nocfs2: prevent release journal inode after journal shutdown\n\nBefore calling ocfs2_delete_osb(), ocfs2_journal_shutdown() has already\nbeen executed in ocfs2_dismount_volume(), so osb-\u003ejournal must be NULL. \nTherefore, the following calltrace will inevitably fail when it reaches\njbd2_journal_release_jbd_inode().\n\nocfs2_dismount_volume()-\u003e\n  ocfs2_delete_osb()-\u003e\n    ocfs2_free_slot_info()-\u003e\n      __ocfs2_free_slot_info()-\u003e\n        evict()-\u003e\n          ocfs2_evict_inode()-\u003e\n            ocfs2_clear_inode()-\u003e\n\t      jbd2_journal_release_jbd_inode(osb-\u003ejournal-\u003ej_journal,\n\nAdding osb-\u003ejournal checks will prevent null-ptr-deref during the above\nexecution path.","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: prevent release journal inode after journal shutdown","id":"CVE-2025-39842","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"debian:debian_linux","products":["debian:debian_linux","linux:linux_kernel"],"type":"null_dereference","year":"2025"},"n_packages":0,"n_references":5,"next":{"headline":"mm: slub: avoid wake up kswapd in set_track_prepare","id":"CVE-2025-39843"},"packages":[],"prev":{"headline":"scsi: lpfc: Fix buffer free/clear order in deferred receive path","id":"CVE-2025-39841"},"products":["Linux"],"published":"2025-09-19","related":[{"cvss_score":10,"headline":"ProFTPD Improper Access Control","id":"CVE-2015-3306","kev_date_added":"2026-10-08","published":"2015-05-18"},{"cvss_score":9.9,"headline":"RoundCube Webmail Deserialization of Untrusted Data","id":"CVE-2025-49113","kev_date_added":"2026-02-20","published":"2025-06-02"},{"cvss_score":9.8,"headline":"GNU InetUtils Argument Injection","id":"CVE-2026-24061","kev_date_added":"2026-01-26","published":"2026-01-21"},{"cvss_score":9.8,"headline":"Linux Kernel Improper Check for Unusual or Exceptional Conditions","id":"CVE-2025-39682","kev_date_added":"2026-09-18","published":"2025-09-05"},{"cvss_score":9.8,"headline":"Mozilla Firefox Use-After-Free","id":"CVE-2024-9680","kev_date_added":"2024-10-15","published":"2024-10-09"},{"cvss_score":9.8,"headline":"RARLAB UnRAR Directory Traversal","id":"CVE-2022-30333","kev_date_added":"2022-08-09","published":"2022-05-09"},{"cvss_score":9.8,"headline":"Roundcube Webmail SQL Injection","id":"CVE-2021-44026","kev_date_added":"2023-06-22","published":"2021-11-19"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-05-12","vendors":["Linux"]},"summary":"A null pointer dereference in the Linux kernel OCFS2 filesystem can cause a system crash during volume dismount.","url":"https://insights.sbomify.com/CVE-2025-39842/"}