CVE-2025-21769

ptp: vmclock: Add .owner to vmclock_miscdev_fops

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.

5.5

CVSS

Severity: Medium

CVSS 3.1 •

EPSS 0.02%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/3b5709225b43ee33e1026dd1fc0949a7f19b5289	patch
https://git.kernel.org/stable/c/7b07b040257c1b658ef3eca86e4b6ae02d65069c	patch

Frequently Asked Questions

What is the severity of CVE-2025-21769?: CVE-2025-21769 has been scored as a medium severity vulnerability.
How to fix CVE-2025-21769?: To fix CVE-2025-21769, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-21769 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2025-21769 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-21769?: CVE-2025-21769 affects Linux Linux, Linux Linux.

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