net/liquidio: drop cached VF pci_dev LUT
CVE-2026-72329 · published 15 Aug 2026
How serious is it
- Severity: critical, CVSS score 9.3 out of 10.
- No exploit prediction (EPSS) score yet.
- Not on the CISA list of exploited vulnerabilities.
- No public exploit in Exploit-DB.
Is your app affected by CVE-2026-72329?
Paste this prompt into Claude Code, Cursor or any AI coding tool: it runs a free Shippable scan of your project and fixes what it finds. Built with Lovable, Bolt or v0? Scan your live app. Or upload your package file.
Who is affected
- Linux Linux: ca6139ffc67ee6ef0459f81e37894ed411083855 to < e3b20de8d7c06c8f1a0ded1e52be9d282609c3da, ca6139ffc67ee6ef0459f81e37894ed411083855 to < 1cf5c6a80adc31456f3e93b2922a2446fd63e2c4, ca6139ffc67ee6ef0459f81e37894ed411083855 to < 08ff33dce6f91510bb296a753a232db0ca3fd3d8, ca6139ffc67ee6ef0459f81e37894ed411083855 to < 81acef3a247fd523513a2e9f71de1c167bc0f882
- Linux Linux: 4.10
How to check
- Find out whether you run the affected product and which version, then compare it with the versions above.
How to fix
Copies a prompt for Claude Code, Cursor or Codex that asks it to check whether you run this product.
- Apply the vendor's update or mitigation from the references below. If there is none yet, limit exposure of the affected service until there is.
- If a vulnerable version was live, check your logs and rotate the secrets that server could read.
The advisory
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.
Check your whole app
Dependencies are only half of it. Free and read-only: before you push, run npx shippable-dev scan localhost:3000 in your project folder, no account needed. For your live app, you prove it's yours with a one-line tag first.
References
- git.kernel.org/stable/c/e3b20de8d7c06c8f1a0ded1e52be9d282609c3da
- git.kernel.org/stable/c/1cf5c6a80adc31456f3e93b2922a2446fd63e2c4
- git.kernel.org/stable/c/08ff33dce6f91510bb296a753a232db0ca3fd3d8
- git.kernel.org/stable/c/81acef3a247fd523513a2e9f71de1c167bc0f882
- git.kernel.org/stable/c/5c0e3ba4f500fd4314ceb42f07f16bc445156431
Merged from CVE List. Last updated 25 Oct 2026. All vulnerabilities · RSS · JSON