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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 |
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