CVE-2026-53177
Açıklama (NVD)
In the Linux kernel, the following vulnerability has been resolved: bnxt_en: Fix NULL pointer dereference PCIe errors detected by a Root Port or Downstream Port cause error recovery services to run on all subordinate devices regardless of administrative state. The .error_detected() callback, bnxt_io_error_detected(), disables and synchronizes IRQs via bnxt_disable_int_sync(), which calls bnxt_cp_num_to_irq_num() to map completion rings to IRQs using bp->bnapi. Since bp->bnapi is allocated on NIC open and freed on NIC close, PCIe error recovery on a closed NIC can dereference a NULL pointer. Check if bp->bnapi is NULL before disabling and synchronizing IRQs.
Yayın: 25.06.2026 · Son değişiklik: 06.11.2026 · Zayıflık: CWE-476
CVSS 3.1 metrikleri
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
| Saldırı vektörü | Yerel |
| Karmaşıklık | Düşük |
| Gereken yetki | Düşük |
| Kullanıcı etkileşimi | Gerekmez |
| Kapsam | Değişmez |
| Gizlilik | Yok |
| Bütünlük | Yok |
| Erişilebilirlik | Yüksek |
Hesaplanan temel puan: 5.5. CVSS hesaplayıcıda incele
Referanslar
- https://git.kernel.org/stable/c/08e57d014ea19f303d5d57a849beb846f37788b7
- https://git.kernel.org/stable/c/1449177b87f768353909e930a99b902675119b2b
- https://git.kernel.org/stable/c/1a418ad0e5e525d1d117dd1601681f75455af320
- https://git.kernel.org/stable/c/3884976f87448e269908ae61bd5d62d54ce9c0c7
- https://git.kernel.org/stable/c/580844a9683afe7974856dd5b7886447435b3474
- https://git.kernel.org/stable/c/59c5a3e69c7630a811565937e64be70b08436761
- https://git.kernel.org/stable/c/964b1c3eb71afe58bb61c8b984164447e000ae8a
- https://git.kernel.org/stable/c/d930276f2cddd0b7294cac7a8fe7b877f6d9e08d
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html