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.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.