PT-2025-8881 · Linux+1 · Linux Kernel+1

Published 2025-02-27 · Updated 2025-02-28 · CVE-2025-21769

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A vulnerability in the Linux kernel has been resolved. The issue is related to the vmclock module, where the lack of an .owner field in vmclock miscdev fops allows the module to be unloaded while /dev/vmclock0 is open, leading to a kernel oops.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Related Identifiers

CVE-2025-21769

Affected Products

Astra Linux

Linux Kernel

References · 12

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21769.json · Exploit
• https://git.kernel.org/stable/c/3b5709225b43ee33e1026dd1fc0949a7f19b5289 · Patch
• https://osv.dev/vulnerability/CVE-2025-21769 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2025-21769 · Security Note
• https://git.kernel.org/stable/c/7b07b040257c1b658ef3eca86e4b6ae02d65069c · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2025-21769 · Security Note
• https://ubuntu.com/security/CVE-2025-21769 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-21769 · Vendor Advisory
• https://git.kernel.org/linus/7b07b040257c1b658ef3eca86e4b6ae02d65069c · Note
• https://twitter.com/VulmonFeeds/status/1895016900523954518 · Twitter Post
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note
• https://twitter.com/CVEnew/status/1895260236635574380 · Twitter Post