CVE-2026-72329 (GCVE-0-2026-72329)
Vulnerability from cvelistv5
Published
2026-08-15 05:55
Modified
2026-10-21 12:44
Severity ?
9.3 (Critical) - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: ca6139ffc67ee6ef0459f81e37894ed411083855
Version: ca6139ffc67ee6ef0459f81e37894ed411083855
Version: ca6139ffc67ee6ef0459f81e37894ed411083855
Version: ca6139ffc67ee6ef0459f81e37894ed411083855
Version: ca6139ffc67ee6ef0459f81e37894ed411083855
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