Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected ca6139ffc67ee6ef0459f81e37894ed411083855 before e3b20de8d7c06c8f1a0ded1e52be9d282609c3da; affected ca6139ffc67ee6ef0459f81e37894ed411083855 before 1cf5c6a80adc31456f3e93b2922a2446fd63e2c4; affected ca6139ffc67ee6ef0459f81e37894ed411083855 before 08ff33dce6f91510bb296a753a232db0ca3fd3d8; affected ca6139ffc67ee6ef0459f81e37894ed411083855 before 81acef3a247fd523513a2e9f71de1c167bc0f882; affected ca6139ffc67ee6ef0459f81e37894ed411083855 before 5c0e3ba4f500fd4314ceb42f07f16bc445156431 |
| Linux / Linux | affected 4.10; unaffected 0 before 4.10; unaffected 6.6.160 through 6.6.*; unaffected 6.12.114 through 6.12.*; unaffected 6.18.57 through 6.18.*; unaffected 7.1.5 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/e3b20de8d7c06c8f1a0ded1e52be9d282609c3da
- https://git.kernel.org/stable/c/1cf5c6a80adc31456f3e93b2922a2446fd63e2c4
- https://git.kernel.org/stable/c/08ff33dce6f91510bb296a753a232db0ca3fd3d8
- https://git.kernel.org/stable/c/81acef3a247fd523513a2e9f71de1c167bc0f882
- https://git.kernel.org/stable/c/5c0e3ba4f500fd4314ceb42f07f16bc445156431
ADP enrichment
No English description supplied.
No references supplied.