CVE-2026-72329
CRITICAL
INFO
Priority: 0.02
BB Relevance:
54/100
Published: 2026-08-15
Modified: 2026-10-30
First seen: 2026-10-30
Status: active
Attack Surface
Low Complexity
No Auth
No Interaction
Conf. Impact
Integ. Impact
Scope Change
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
None
UI:
None
S:
Changed
C:
High
I:
High
A:
High
Description
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 Software (7)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | ca6139ffc67ee6ef0459f81e37894ed411083855 < 4ec87796fadf5a631ee6513c258c0e3d9ca62f79 |
| Linux | Linux | ca6139ffc67ee6ef0459f81e37894ed411083855 < e3b20de8d7c06c8f1a0ded1e52be9d282609c3da |
| Linux | Linux | ca6139ffc67ee6ef0459f81e37894ed411083855 < 1cf5c6a80adc31456f3e93b2922a2446fd63e2c4 |
| Linux | Linux | ca6139ffc67ee6ef0459f81e37894ed411083855 < 08ff33dce6f91510bb296a753a232db0ca3fd3d8 |
| Linux | Linux | ca6139ffc67ee6ef0459f81e37894ed411083855 < 81acef3a247fd523513a2e9f71de1c167bc0f882 |
| Linux | Linux | ca6139ffc67ee6ef0459f81e37894ed411083855 < 5c0e3ba4f500fd4314ceb42f07f16bc445156431 |
| Linux | Linux | 4.10 |