CVE-2026-90104
Açıklama (NVD)
In the Linux kernel, the following vulnerability has been resolved: NFSv4.1: zero referring call lists before decoding decode_cb_sequence_args() allocates csa_rclists with kmalloc_objs(), so each referring_call_list starts uninitialized. decode_rc_list() assigns rcl_refcalls only when rcl_nrefcalls is nonzero. A valid list with zero referring calls therefore leaves the pointer uninitialized, and nfs4_callback_sequence() later passes stale slab contents to kfree(). Allocate csa_rclists with kzalloc_objs() so every rcl_refcalls member is NULL from the beginning, including valid empty referring call lists.
Yayın: 17.09.2026 · Son değişiklik: 30.10.2026
CVSS 3.1 metrikleri
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
| Saldırı vektörü | Ağ (uzaktan) |
| Karmaşıklık | Düşük |
| Gereken yetki | Yok |
| Kullanıcı etkileşimi | Gerekmez |
| Kapsam | Değişmez |
| Gizlilik | Yüksek |
| Bütünlük | Yüksek |
| Erişilebilirlik | Yüksek |
Hesaplanan temel puan: 9.8. CVSS hesaplayıcıda incele
Referanslar
- https://git.kernel.org/stable/c/7510a5b9edec9d9536a4e69f10edfb2592e6cf7f
- https://git.kernel.org/stable/c/810f6b3a29ac96fdc16909132b31627dae6824c2
- https://git.kernel.org/stable/c/8fa4804fe62ca4155a2d8fc2789d630376cbf2fc
- https://git.kernel.org/stable/c/ed54460caf5b5aa65ec03c9a6032d831f39f19f5
- https://git.kernel.org/stable/c/f31f3c042e024aef437cda42f0424ae8d4594b6c
- https://git.kernel.org/stable/c/f4d23937e1c41995c2f54af26c89b5e48a41c299