Riskcovery

CVE-2025-39842

ocfs2: prevent release journal inode after journal shutdown

State
Published
Severity
Not scored
Published
Sep 19, 2025
Updated
May 12, 2026
Reserved
Apr 16, 2025

Read the record on cve.org

Description

In 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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • da5e7c87827e8caa6a1eeec6d95dcf74ab592a01 to before 42c415c53ad2065088cc411d08925effa5b3d255Affected
  • da5e7c87827e8caa6a1eeec6d95dcf74ab592a01 to before e9188f66e94955431ddbe2cd1cdf8ff2bb486abfAffected
  • da5e7c87827e8caa6a1eeec6d95dcf74ab592a01 to before f4a917e6cd6c798f7adf39907f117fc754db1283Affected
  • da5e7c87827e8caa6a1eeec6d95dcf74ab592a01 to before 85e66331b60601d903cceaf8c10a234db863cd78Affected
  • da5e7c87827e8caa6a1eeec6d95dcf74ab592a01 to before f46e8ef8bb7b452584f2e75337b619ac51a7cadfAffected
LinuxLinux
  • 5.16Affected
  • before 5.16Not affected
  • 6.1.151 through 6.1.*Not affected
  • 6.6.105 through 6.6.*Not affected
  • 6.12.46 through 6.12.*Not affected
  • 6.16.6 through 6.16.*Not affected
  • 6.17 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.