Vulnerability in Linux

CVE-2025-21822

In the Linux kernel, the following vulnerability has been resolved: ptp: vmclock: Set driver data before its usage If vmclock_ptp_register() fails during probing, vmclock_remove() is called to clean up the ptp clock and misc device. It uses dev_get_drvdata() to access the vmclock state. However the driver data is not yet set at this point. Assign the driver data earlier.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.002 (6.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 6.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-21822: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

  • Linux — versions 20503272422693d793b84f88bf23fe4e955d3a33, 6.13, 0
  • Linux Kernel — versions 6.14

References

Frequently asked questions

What is CVE-2025-21822?
CVE-2025-21822 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2025-02-27.
How severe is CVE-2025-21822?
Medium severity. CVSS v3 base score is 5.5 out of 10.