CVE-2025-21769

MEDIUM

Linux Kernel 6.13-6.13.3 - Use-After-Free via vmclock Device Unload

Title source: llm

Description

In the Linux kernel, the following vulnerability has been resolved: ptp: vmclock: Add .owner to vmclock_miscdev_fops Without the .owner field, the module can be unloaded while /dev/vmclock0 is open, leading to an oops.

References (2)

Core 2

Core References

Patch

https://git.kernel.org/stable/c/3b5709225b43ee33e1026dd1fc0949a7f19b5289

Patch

https://git.kernel.org/stable/c/7b07b040257c1b658ef3eca86e4b6ae02d65069c

Scores

CVSS v3 5.5

EPSS 0.0018

EPSS Percentile 7.4%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

Status published

Products (9)

linux/Kernel 6.13.0 - 6.13.4linux

Linux/Linux < 6.13

Linux/Linux 20503272422693d793b84f88bf23fe4e955d3a33 - 3b5709225b43ee33e1026dd1fc0949a7f19b5289

Linux/Linux 20503272422693d793b84f88bf23fe4e955d3a33 - 7b07b040257c1b658ef3eca86e4b6ae02d65069c

Linux/Linux 6.13

Linux/Linux 6.13.4 - 6.13.*

Linux/Linux 6.14

linux/linux_kernel 6.14 rc1 (2 CPE variants)

linux/linux_kernel 6.13 - 6.13.4

Published Feb 27, 2025

Tracked Since Feb 18, 2026