Security Advisory

CVE-2025-21814

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2025-02-27 20:04:14

Last updated 2026-05-12 12:03:58

Assigner Linux

State PUBLISHED

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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