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CVE-2025-21769

ptp: vmclock: Add .owner to vmclock_miscdev_fops

MEDIUM
5.5
CVSS Score
Published: February 27, 2025 at 02:18 AM UTC
Updated: June 17, 2026 at 08:44 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
6.13 ≤ v < 6.13.46.13 ≤ v < 6.1420503272422693d793b84f88bf23fe4e955d3a336.14 rc16.14 rc2
Vendor states this is fixed in 3b5709225b43ee33e1026dd1fc0949a7f19b5289 (fixed)
Vendor states this is fixed in 7b07b040257c1b658ef3eca86e4b6ae02d65069c (fixed)
Vendor states this is fixed in 6.13 (unaffected)
Vendor states this is fixed in 6.13.4 (unaffected)
Vendor states this is fixed in 6.14 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/3b5709225b43ee33e1026dd1fc0949a7f19b5289
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/7b07b040257c1b658ef3eca86e4b6ae02d65069c

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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