VDB

GHSA-7pj6-rq69-3m65

GHSA-7pj6-rq69-3m65 PUBLISHED CVSS 5.5 MEDIUM

Record from GitHub Advisory Database · Published October 21, 2024

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix null-ptr-deref when journal load failed. During the mounting process, if journal_reset() fails because of too short journal, then lead to jbd2_journal_load() fails with NULL j_sb_buffer. Subsequently, ocfs2_journal_shutdown() calls jbd2_journal_flush()->jbd2_cleanup_journal_tail()-> __jbd2_update_log_tail()->jbd2_journal_update_sb_log_tail() ->lock_buffer(journal->j_sb_buffer), resulting in a null-pointer dereference error. To resolve this issue, we should check the JBD2_LOADED flag to ensure the journal was properly loaded. Additionally, use journal instead of osb->journal directly to simplify the code.

Risk scores

CVSS 3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Timeline

  • Oct 21, 2024 CVE Published
  • Apr 10, 2026 Security Advisory

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vulnetix vdb vuln GHSA-7pj6-rq69-3m65
vulnetix vdb fixes GHSA-7pj6-rq69-3m65

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