ocfs2: prevent release journal inode after journal shutdown

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-39842
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-09-19 16:15:42 UTC
Updated2026-05-12 13:17:15 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: ocfs2: prevent release journal inode after journal shutdown Before calling ocfs2_delete_osb(), ocfs2_journal_shutdown() has already been executed in ocfs2_dismount_volume(), so osb->journal must be NULL. Therefore, the following calltrace will inevitably fail when it reaches jbd2_journal_release_jbd_inode(). ocfs2_dismount_volume()-> ocfs2_delete_osb()-> ocfs2_free_slot_info()-> __ocfs2_free_slot_info()-> evict()-> ocfs2_evict_inode()-> ocfs2_clear_inode()-> jbd2_journal_release_jbd_inode(osb->journal->j_journal, Adding osb->journal checks will prevent null-ptr-deref during the above execution path.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Problem Types: NVD-CWE-noinfo

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected da5e7c87827e8caa6a1eeec6d95dcf74ab592a01 42c415c53ad2065088cc411d08925effa5b3d255 git Not specified
CNA Linux Linux affected da5e7c87827e8caa6a1eeec6d95dcf74ab592a01 e9188f66e94955431ddbe2cd1cdf8ff2bb486abf git Not specified
CNA Linux Linux affected da5e7c87827e8caa6a1eeec6d95dcf74ab592a01 f4a917e6cd6c798f7adf39907f117fc754db1283 git Not specified
CNA Linux Linux affected da5e7c87827e8caa6a1eeec6d95dcf74ab592a01 85e66331b60601d903cceaf8c10a234db863cd78 git Not specified
CNA Linux Linux affected da5e7c87827e8caa6a1eeec6d95dcf74ab592a01 f46e8ef8bb7b452584f2e75337b619ac51a7cadf git Not specified
CNA Linux Linux affected 5.16 Not specified
CNA Linux Linux unaffected 5.16 semver Not specified
CNA Linux Linux unaffected 6.1.151 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.105 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.46 6.12.* semver Not specified
CNA Linux Linux unaffected 6.16.6 6.16.* semver Not specified
CNA Linux Linux unaffected 6.17 * original_commit_for_fix Not specified
ADP Siemens SIMATIC CN 4100 affected V5.0 custom Not specified

References

ReferenceSourceLinkTags
lists.debian.org/debian-lts-announce/2025/10/msg00008.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
git.kernel.org/stable/c/f46e8ef8bb7b452584f2e75337b619ac51a7cadf 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/42c415c53ad2065088cc411d08925effa5b3d255 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/e9188f66e94955431ddbe2cd1cdf8ff2bb486abf 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/f4a917e6cd6c798f7adf39907f117fc754db1283 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
cert-portal.siemens.com/productcert/html/ssa-032379.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/85e66331b60601d903cceaf8c10a234db863cd78 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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