ocfs2: add journal NULL check in ocfs2_checkpoint_inode()

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-72161
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-15 06:21:33 UTC
Updated2026-08-17 06:18:16 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: ocfs2: add journal NULL check in ocfs2_checkpoint_inode() During unmount, ocfs2_journal_shutdown() frees the journal and sets osb->journal to NULL. Later, when VFS evicts remaining cached inodes, ocfs2_evict_inode() -> ocfs2_clear_inode() -> ocfs2_checkpoint_inode() -> ocfs2_ci_fully_checkpointed() dereferences osb->journal, causing a NULL pointer dereference. Fix this by adding a NULL check for osb->journal in ocfs2_checkpoint_inode(). If the journal is NULL, it has already been fully flushed and destroyed during shutdown, so there is nothing to checkpoint.

Risk And Classification

EPSS: 0.002050000 probability, percentile 0.108840000 (date 2026-08-17)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected da5e7c87827e8caa6a1eeec6d95dcf74ab592a01 24daf13422e8328fd588c34a017bdef1949910e8 git Not specified
CNA Linux Linux affected da5e7c87827e8caa6a1eeec6d95dcf74ab592a01 7da7e4ac21895fe34cceffcfc99497cc2750da99 git Not specified
CNA Linux Linux affected da5e7c87827e8caa6a1eeec6d95dcf74ab592a01 eb6a13834c23e291f1170cb1b489ec255edfa5a3 git Not specified
CNA Linux Linux affected da5e7c87827e8caa6a1eeec6d95dcf74ab592a01 499714de42ab4d2e778cbb10186684142a1222eb git Not specified
CNA Linux Linux affected da5e7c87827e8caa6a1eeec6d95dcf74ab592a01 63921f790234b221e4b15c56c72888b13250f81d git Not specified
CNA Linux Linux affected da5e7c87827e8caa6a1eeec6d95dcf74ab592a01 a291c77c034b7a81849ce9b71cc9ecda9e587d89 git Not specified
CNA Linux Linux affected 5.16 Not specified
CNA Linux Linux unaffected 5.16 semver Not specified
CNA Linux Linux unaffected 6.1.178 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.145 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.97 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.40 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.5 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/499714de42ab4d2e778cbb10186684142a1222eb 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/eb6a13834c23e291f1170cb1b489ec255edfa5a3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7da7e4ac21895fe34cceffcfc99497cc2750da99 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/63921f790234b221e4b15c56c72888b13250f81d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/a291c77c034b7a81849ce9b71cc9ecda9e587d89 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/24daf13422e8328fd588c34a017bdef1949910e8 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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