Skip to main content
VulnerabilityPublished Updated

CVE-2025-40219: Linux kernel · PCI/IOV: Fix race between SR-IOV enable/disable and hotplug

Affects Linux kernelSource CVE Database V5

0
Compare

Not known to be exploited · fixed in f3015627b6e9ddf85cfeaf42405b3c194dde2c36 : update Linux kernel when convenient.

Data as of 10 Nov 2026, 15:03 UTC

Severity
Medium

Rated Medium by Threat Radar's AI analysis · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none
Patch
Available – fixed in f3015627b6e9ddf85cfeaf42405b3c194dde2c36, d7673ac466eca37ec3e6b7cc9ccdb06de3304e9b, bea1d373098b22d7142da48750ce5526096425bc +5

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 4 Dec 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 10 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 18f9e9d150fccfa747875df6f0a9f606740762b3, < f3015627b6e9ddf85cfeaf42405b3c194dde2c36
Fixed in
  • f3015627b6e9ddf85cfeaf42405b3c194dde2c36
LinuxLinuxAffected
  • ≥ 18f9e9d150fccfa747875df6f0a9f606740762b3, < d7673ac466eca37ec3e6b7cc9ccdb06de3304e9b
Fixed in
  • d7673ac466eca37ec3e6b7cc9ccdb06de3304e9b
LinuxLinuxAffected
  • ≥ 18f9e9d150fccfa747875df6f0a9f606740762b3, < bea1d373098b22d7142da48750ce5526096425bc
Fixed in
  • bea1d373098b22d7142da48750ce5526096425bc
LinuxLinuxAffected
  • ≥ 18f9e9d150fccfa747875df6f0a9f606740762b3, < a5338e365c4559d7b4d7356116b0eb95b12e08d5
Fixed in
  • a5338e365c4559d7b4d7356116b0eb95b12e08d5
LinuxLinuxAffected
  • ≥ 18f9e9d150fccfa747875df6f0a9f606740762b3, < 1047ca2d816994f31e1475e63e0c0b7825599747
Fixed in
  • 1047ca2d816994f31e1475e63e0c0b7825599747
LinuxLinuxAffected
  • ≥ 18f9e9d150fccfa747875df6f0a9f606740762b3, < 97c18f074ff1c12d016a0753072a3afdfa0b9611
Fixed in
  • 97c18f074ff1c12d016a0753072a3afdfa0b9611

AI-suggested

A fix is available and has been applied in the Linux kernel after version 5.0, as indicated by the listed fixed commit hashes. Users should update to a Linux kernel version that includes these fixes to resolve the race condition. No additional mitigation steps are indicated.

Description

A race condition vulnerability in the Linux kernel's PCI/IOV subsystem involving SR-IOV enable/disable operations and hotplug events has been fixed. The original fix caused deadlocks and was reverted. The final fix involves taking the PCI rescan/remove lock earlier in the call chain to prevent the race without causing deadlocks.

References

Community reviews

Loading reviews…