PT-2025-34412 · Linux+1 · Linux Kernel+1

Published 2025-06-15 · Updated 2025-08-22 · CVE-2025-38651

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 versions 6.16.0-rc1-dev-00001-g314a2f98b65f and earlier

Description: A flaw was identified in the Linux kernel related to landlock functionality. Specifically, the get id range() function was susceptible to receiving a zero value as its first argument due to the behavior of get random u8(), while expecting a positive value. This issue was detected through KUnit tests, which triggered a warning. The problem was addressed by clamping the input value to ensure it remains positive.

Recommendations: Update to a newer version of the Linux kernel to address this issue.

Exploit

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

BDU:2026-03084

CVE-2025-38651

Affected Products

Astra Linux

Linux Kernel

References · 15

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38651.json · Exploit
• https://bdu.fstec.ru/vul/2026-03084 · Security Note
• https://git.kernel.org/stable/c/e0a69cf2c03e61bd8069becb97f66c173d0d1fa1 · Patch
• https://git.kernel.org/stable/c/127183361b69dbb7ac3246ad4726f93400481249 · Patch
• https://osv.dev/vulnerability/CVE-2025-38651 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-38651 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38651 · Vendor Advisory
• https://git.kernel.org/stable/c/7d9ec2cfe12dd0d7c1a58213b9bef1bec66a3189 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2025-38651 · Security Note
• https://cve.org/CVERecord?id=CVE-2025-38651 · Security Note
• https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.15.10 · Note
• https://git.kernel.org/linus/e0a69cf2c03e61bd8069becb97f66c173d0d1fa1 · Note
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note
• https://twitter.com/CVEnew/status/1958933900987691481 · Twitter Post
• https://lore.kernel.org/linux-cve-announce/2025082237-CVE-2025-38651-6940@gregkh · Note