Medium severity5.5NVD Advisory· Published Feb 27, 2025· Updated Jun 17, 2026
CVE-2025-21822
CVE-2025-21822
Description
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.
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Affected products
3Patches
Vulnerability mechanics
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