{"id":"CVE-2026-72329","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/liquidio: drop cached VF pci_dev LUT\n\nThe PF SR-IOV enable path caches VF pci_dev pointers in\ndpiring_to_vfpcidev_lut[] by iterating with pci_get_device()","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/liquidio: drop cached VF pci_dev LUT\n\nThe PF SR-IOV enable path caches VF pci_dev pointers in\ndpiring_to_vfpcidev_lut[] by iterating with pci_get_device(). Those\nen…","severity":"critical","cvss":9.3,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","vendor":"Linux","product":"Linux","affected":["Linux >= ca6139ffc67ee6ef0459f81e37894ed411083855 < 08ff33dce6f91510bb296a753a232db0ca3fd3d8","Linux >= ca6139ffc67ee6ef0459f81e37894ed411083855 < 81acef3a247fd523513a2e9f71de1c167bc0f882","Linux >= ca6139ffc67ee6ef0459f81e37894ed411083855 < 5c0e3ba4f500fd4314ceb42f07f16bc445156431","Linux 4.10"],"published":"2026-08-15","updated":"2026-10-15","sourceUpdated":"2026-10-15T11:17:42.617","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-72329","references":[{"url":"https://git.kernel.org/stable/c/08ff33dce6f91510bb296a753a232db0ca3fd3d8","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5c0e3ba4f500fd4314ceb42f07f16bc445156431","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/81acef3a247fd523513a2e9f71de1c167bc0f882","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"epss":0.0018,"epssPercentile":0.07033,"ingestedAt":"2026-10-15T11:00:41.685Z","slug":"CVE-2026-72329","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnet/liquidio: drop cached VF pci_dev LUT\n\nThe PF SR-IOV enable path caches VF pci_dev pointers in\ndpiring_to_vfpcidev_lut[] by iterating with pci_get_device(). Those\nentries do not own a reference, because the iterator drops the previous\ndevice reference on each step. The cached pointer is then dereferenced\nlater when handling OCTEON_VF_FLR_REQUEST.\n\nReplace the cached VF mapping with runtime lookup on the mailbox DPI\nring: derive the VF index from q_no, resolve the VF via exported PCI\nIOV helpers, validate it with the PF pointer and VF ID, then issue\npcie_flr() and drop the reference with pci_dev_put(). Remove the\nunused VF lookup table initialization and cleanup.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":51,"depthScoreParts":{"impact":51.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}