{"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"},{"url":"https://git.kernel.org/stable/c/e3b20de8d7c06c8f1a0ded1e52be9d282609c3da"},{"url":"https://git.kernel.org/stable/c/1cf5c6a80adc31456f3e93b2922a2446fd63e2c4"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72329.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-72329"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2516301"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-72329"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72329"},{"url":"https://kernelcve.org/list/?q=CVE-2026-72329"},{"url":"https://lore.kernel.org/linux-cve-announce/2026081508-CVE-2026-72329-c884@gregkh/T"},{"url":"https://access.redhat.com/errata/RHSA-2026:74133"},{"url":"https://access.redhat.com/errata/RHSA-2026:74132"}],"tags":["nvd","cve.org","csaf","vex","red-hat","score-dispute"],"epss":0.00193,"epssPercentile":0.0891,"ingestedAt":"2026-10-15T11:00:41.685Z","ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-16T18:47:03.690749Z"},"patched":["enterprise_linux_baseos_v_8","enterprise_linux_crb_v_8","enterprise_linux_nfv_v_8","enterprise_linux_rt_v_8"],"cwe":["CWE-416"],"scores":{"nvd":9.3,"vendor":4.7},"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.\n\n## Vendor advisories\n\n- **RHSA-2026:74133** · Red Hat · fixed in: Red Hat Enterprise Linux BaseOS (v. 8), Red Hat Enterprise Linux CRB (v. 8) · released 2026-09-30 · [advisory](https://access.redhat.com/errata/RHSA-2026:74133)\n- **RHSA-2026:74132** · Red Hat · fixed in: Red Hat Enterprise Linux NFV (v. 8), Red Hat Enterprise Linux RT (v. 8) · released 2026-09-30 · [advisory](https://access.redhat.com/errata/RHSA-2026:74132)\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 7 · no fix planned: Red Hat Enterprise Linux 7 · updated 2026-10-26 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72329.json)","depth":"midnight","depthScore":51,"depthScoreParts":{"impact":51.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}