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CVE-2025-39842 In the Linux kernel, the following vulnerability has been resolved: ocfs2: prevent release journal inode after journal…

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.

Produits et versions touchés

Produit Versions touchées Corrigé en
Linux 6.17 premières → < 6.17 6.17
Linux 6.16 premières → < 6.16.6 6.16.6
Linux 6.12 premières → < 6.12.46 6.12.46
Linux 6.6 premières → < 6.6.105 6.6.105
Linux 6.1 premières → < 6.1.151 6.1.151
Linux 5.16 Pas de correctif indiqué
SIMATIC CN 4100 5.0 premières → < 5.0 5.0

Références

Chronologie

  1. Publiée
  2. Dernière modification

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