VYPR
Medium severity5.5NVD Advisory· Published Feb 27, 2025· Updated Jun 17, 2026

CVE-2025-21814

CVE-2025-21814

Description

In the Linux kernel, the following vulnerability has been resolved:

ptp: Ensure info->enable callback is always set

The ioctl and sysfs handlers unconditionally call the ->enable callback. Not all drivers implement that callback, leading to NULL dereferences. Example of affected drivers: ptp_s390.c, ptp_vclock.c and ptp_mock.c.

Instead use a dummy callback if no better was specified by the driver.

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Affected products

91

Patches

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