Orta CVSS 4.7
CVE-2024-47660: Linux Kernel: yarış durumu
Açıklama (NVD)
In the Linux kernel, the following vulnerability has been resolved: fsnotify: clear PARENT_WATCHED flags lazily In some setups directories can have many (usually negative) dentries. Hence __fsnotify_update_child_dentry_flags() function can take a significant amount of time. Since the bulk of this function happens under inode->i_lock this causes a significant contention on the lock when we remove the watch from the directory as the __fsnotify_update_child_dentry_flags() call from fsnotify_recalc_mask() races with __fsnotify_update_child_dentry_flags() calls from __fsnotify_parent() happening on children. This can lead upto softlockup reports reported by users. Fix the problem by calling fsnotify_update_children_dentry_flags() to set PARENT_WATCHED flags only when parent starts watching children. When parent stops watching children, clear false positive PARENT_WATCHED flags lazily in __fsnotify_parent() for each accessed child.
Özet bilgiler
- Ürün
- Linux Linux Kernel
- CVSS v3.1
- 4.7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS
- %0,16 (yüzdelik 5)
- CWE
- CWE-362
- Yama
- Mevcut
Etkilenen sürümler
| Ürün | Başlangıç | Bitiş | Düzeltildi |
|---|---|---|---|
| linux-linux-kernel | — | — | 5.10.226 |
| linux-linux-kernel | 5.11 | — | 5.15.167 |
| linux-linux-kernel | 5.16 | — | 6.1.109 |
| linux-linux-kernel | 6.2 | — | 6.6.50 |
| linux-linux-kernel | 6.7 | — | 6.10.9 |