CVE-2026-72329
Açıklama (NVD)
In the Linux kernel, the following vulnerability has been resolved: net/liquidio: drop cached VF pci_dev LUT The PF SR-IOV enable path caches VF pci_dev pointers in dpiring_to_vfpcidev_lut[] by iterating with pci_get_device(). Those entries do not own a reference, because the iterator drops the previous device reference on each step. The cached pointer is then dereferenced later when handling OCTEON_VF_FLR_REQUEST. Replace the cached VF mapping with runtime lookup on the mailbox DPI ring: derive the VF index from q_no, resolve the VF via exported PCI IOV helpers, validate it with the PF pointer and VF ID, then issue pcie_flr() and drop the reference with pci_dev_put(). Remove the unused VF lookup table initialization and cleanup.
Yayın: 15.08.2026 · Son değişiklik: 30.10.2026
CVSS 3.1 metrikleri
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
| Saldırı vektörü | Yerel |
| Karmaşıklık | Düşük |
| Gereken yetki | Yok |
| Kullanıcı etkileşimi | Gerekmez |
| Kapsam | Değişir |
| Gizlilik | Yüksek |
| Bütünlük | Yüksek |
| Erişilebilirlik | Yüksek |
Hesaplanan temel puan: 9.3. CVSS hesaplayıcıda incele
Referanslar
- https://git.kernel.org/stable/c/08ff33dce6f91510bb296a753a232db0ca3fd3d8
- https://git.kernel.org/stable/c/1cf5c6a80adc31456f3e93b2922a2446fd63e2c4
- https://git.kernel.org/stable/c/4ec87796fadf5a631ee6513c258c0e3d9ca62f79
- https://git.kernel.org/stable/c/5c0e3ba4f500fd4314ceb42f07f16bc445156431
- https://git.kernel.org/stable/c/81acef3a247fd523513a2e9f71de1c167bc0f882
- https://git.kernel.org/stable/c/e3b20de8d7c06c8f1a0ded1e52be9d282609c3da