CVE-2026-72161
CVE-2026-72161: 1 tracked advisory record across Red Hat. Compare vendor sources.
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Red Hat
1 advisory- Advisory severityMedium5.5
Medium [CVE-2026-72161] add journal NULL check in ocfs2_checkpoint_inode
CVE-2026-72161Source published Source updated
In 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. If the journal is NULL, it has already been fully flushed and destroyed during shutdown, so there is nothing to checkpoint. A local user could trigger a NULL pointer dereference during the unmount process of an ocfs2 filesystem. This occurs because the system attempts to access a freed journal pointer, leading to a system crash and a Denial of Service (DoS). Red…
- Affected products in this advisory
- No product details extracted. Check the source bulletin.
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- No fixed-version detail extracted. This does not mean no fix exists.
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
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