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Linux Kernel PTP Drivers NULL Pointer Dereference Vulnerability

Vulnerability

A vulnerability in the Linux kernel's Precision Time Protocol (PTP) subsystem can lead to NULL pointer dereferences. This issue arises because the ioctl and sysfs handlers call the ->enable callback without checking if it is implemented by the driver. Affected drivers include ptp_s390.c, ptp_vclock.c, and ptp_mock.c.

Impact

Exploitation of this vulnerability causes a NULL pointer dereference, leading to a crash of the affected kernel component.

Added: Jun 9, 2025, 7:46 PM
Updated: Jun 9, 2025, 7:46 PM

Vulnerability Rating

Custom Algorithm
spread
9.0
impact
2.5
exploitability
5.3
remediation
0.0
relevance
0.0
threat
3.2
urgency
2.9
incentive
1.7

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.