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CVE PROGRAM SOURCE RECORD9.3 Critical

CVE-2026-72329

net/liquidio: drop cached VF pci_dev LUT

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Status
Published
Published
Updated
Assigning organization
Linux

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • ca6139ffc67ee6ef0459f81e37894ed411083855 to < 4ec87796fadf5a631ee6513c258c0e3d9ca62f79affected
  • ca6139ffc67ee6ef0459f81e37894ed411083855 to < e3b20de8d7c06c8f1a0ded1e52be9d282609c3daaffected
  • ca6139ffc67ee6ef0459f81e37894ed411083855 to < 1cf5c6a80adc31456f3e93b2922a2446fd63e2c4affected
  • ca6139ffc67ee6ef0459f81e37894ed411083855 to < 08ff33dce6f91510bb296a753a232db0ca3fd3d8affected
  • ca6139ffc67ee6ef0459f81e37894ed411083855 to < 81acef3a247fd523513a2e9f71de1c167bc0f882affected
  • ca6139ffc67ee6ef0459f81e37894ed411083855 to < 5c0e3ba4f500fd4314ceb42f07f16bc445156431affected

Linux Linux

Default version status: affected

  • 4.10affected
  • 0 to < 4.10unaffected
  • 6.1.191 to ≤ 6.1.*unaffected
  • 6.6.160 to ≤ 6.6.*unaffected
  • 6.12.114 to ≤ 6.12.*unaffected
  • 6.18.57 to ≤ 6.18.*unaffected
  • 7.1.5 to ≤ 7.1.*unaffected
  • 7.2 to ≤ *unaffected

References