CVE-2026-72329: Linux kernel · net/liquidio: drop cached VF pci_dev LUT
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 9.3 Critical · fixed in 7.0.0-1013.13~24.04.1 : patch Linux kernel as a priority.
Data as of 26 Oct 2026, 17:16 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 8% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 7.0.0-1013.13~24.04.1, 7.0.0-1017.17~24.04.1, 7.0.0-1016.16~24.04.1 +13
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 15 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A patch is available and should be applied to affected linux-azure kernel versions. The vendor advisory confirms the issue is resolved by replacing cached VF pci_dev pointers with runtime lookups and proper reference management. Users should update to patched kernel versions listed in the affectedVersions field to mitigate this vulnerability.
Description
A vulnerability in the Linux kernel's net/liquidio driver related to caching of VF pci_dev pointers in the PF SR-IOV enable path has been resolved. The issue involved dereferencing cached pointers that did not own proper references, potentially leading to use-after-free conditions. The fix replaces cached mappings with runtime lookups and proper reference handling. This vulnerability affects specific linux-azure kernel versions and has a high CVSS score of 9.3, indicating critical impact on confidentiality, integrity, and availability. A patch is available to address the issue.
References
- nvd.nist.gov/vuln/detail/CVE-2026-72329 (opens in a new tab)
- git.kernel.org/stable/c/5c0e3ba4f500fd4314ceb42f07f16bc445156431 (opens in a new tab)
- git.kernel.org/stable/c/81acef3a247fd523513a2e9f71de1c167bc0f882 (opens in a new tab)
- ubuntu.com/security/CVE-2026-72329 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-72329 (opens in a new tab)
- git.kernel.org/linus/5c0e3ba4f500fd4314ceb42f07f16bc445156431 (opens in a new tab)
- ubuntu.com/security/notices/USN-8781-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8816-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8816-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8816-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-8816-4 (opens in a new tab)
- ubuntu.com/security/notices/USN-8888-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8888-2 (opens in a new tab)
- git.kernel.org/stable/c/08ff33dce6f91510bb296a753a232db0ca3fd3d8 (opens in a new tab)
- git.kernel.org/stable/c/1cf5c6a80adc31456f3e93b2922a2446fd63e2c4 (opens in a new tab)
- git.kernel.org/stable/c/e3b20de8d7c06c8f1a0ded1e52be9d282609c3da (opens in a new tab)