CVE-2025-39842
- Source
- https://cve.org/CVERecord?id=CVE-2025-39842
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-39842.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2025-39842
- Downstream
- Related
- Published
- 2025-09-19T15:26:17.075Z
- Modified
- 2026-05-28T03:53:14.104550076Z
- Summary
- ocfs2: prevent release journal inode after journal shutdown
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
ocfs2: prevent release journal inode after journal shutdown
Before calling ocfs2deleteosb(), ocfs2journalshutdown() has already been executed in ocfs2dismountvolume(), so osb->journal must be NULL. Therefore, the following calltrace will inevitably fail when it reaches jbd2journalreleasejbdinode().
ocfs2dismountvolume()-> ocfs2deleteosb()-> ocfs2freeslot_info()-> __ocfs2freeslotinfo()-> evict()-> ocfs2evictinode()-> ocfs2clearinode()-> jbd2journalreleasejbdinode(osb->journal->jjournal,
Adding osb->journal checks will prevent null-ptr-deref during the above execution path.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39842.json", "cna_assigner": "Linux" }- References
-
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html
- https://git.kernel.org/stable/c/42c415c53ad2065088cc411d08925effa5b3d255
- https://git.kernel.org/stable/c/85e66331b60601d903cceaf8c10a234db863cd78
- https://git.kernel.org/stable/c/e9188f66e94955431ddbe2cd1cdf8ff2bb486abf
- https://git.kernel.org/stable/c/f46e8ef8bb7b452584f2e75337b619ac51a7cadf
- https://git.kernel.org/stable/c/f4a917e6cd6c798f7adf39907f117fc754db1283
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39842.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-39842
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedda5e7c87827e8caa6a1eeec6d95dcf74ab592a01Fixed42c415c53ad2065088cc411d08925effa5b3d255Fixede9188f66e94955431ddbe2cd1cdf8ff2bb486abfFixedf4a917e6cd6c798f7adf39907f117fc754db1283Fixed85e66331b60601d903cceaf8c10a234db863cd78Fixedf46e8ef8bb7b452584f2e75337b619ac51a7cadf