Yüksek CVSS 7.8
CVE-2025-38212: Linux Kernel: serbest bırakılmış belleğin kullanımı
Açıklama (NVD)
In the Linux kernel, the following vulnerability has been resolved: ipc: fix to protect IPCS lookups using RCU syzbot reported that it discovered a use-after-free vulnerability, [0] [0]: https://lore.kernel.org/all/67af13f8.050a0220.21dd3.0038.GAE@google.com/ idr_for_each() is protected by rwsem, but this is not enough. If it is not protected by RCU read-critical region, when idr_for_each() calls radix_tree_node_free() through call_rcu() to free the radix_tree_node structure, the node will be freed immediately, and when reading the next node in radix_tree_for_each_slot(), the already freed memory may be read. Therefore, we need to add code to make sure that idr_for_each() is protected within the RCU read-critical region when we call it in shm_destroy_orphaned().
Özet bilgiler
- Ürün
- Linux Linux Kernel
- CVSS v3.1
- 7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS
- %0,20 (yüzdelik 10)
- CWE
- CWE-416
- Yama
- Mevcut
Etkilenen sürümler
| Ürün | Başlangıç | Bitiş | Düzeltildi |
|---|---|---|---|
| linux-linux-kernel | 3.1 | — | 5.4.295 |
| linux-linux-kernel | 5.5 | — | 5.10.239 |
| linux-linux-kernel | 5.11 | — | 5.15.186 |
| linux-linux-kernel | 5.16 | — | 6.1.142 |
| linux-linux-kernel | 6.2 | — | 6.6.95 |
| linux-linux-kernel | 6.7 | — | 6.12.35 |
| linux-linux-kernel | 6.13 | — | 6.15.4 |
| debian-debian-linux | 11.0 | 11.0 | — |