PT-2025-37225 · Amd+3 · Amdgpu+3

Published 2025-09-11 · Updated 2026-03-13 · CVE-2025-39767

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: The Linux kernel contains a flaw related to module loading time optimization. Specifically, the module frob arch sections() function utilizes a counting algorithm with O(n^2) complexity when determining the number of PLTs/GOTs needed for relocations. This can lead to a soft deadlock when CONFIG KASAN, CONFIG PREEMPT VOLUNTARY BUILD, and CONFIG PREEMPT VOLUNTARY are enabled simultaneously, particularly when loading modules like amdgpu that have a large number of relocations. The issue is resolved by sorting the relocation list by info and addend, reducing the algorithm's complexity to O(n log n). This optimization significantly reduces module load time.

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

Exploit

Improper Locking

Weakness Enumeration

CWE-667

Related Identifiers

AZL-67193

CVE-2025-39767

DSA-6008-1

ECHO-FF43-00EF-4A25

Affected Products

Astra Linux

Debian

Linux Kernel

Amdgpu

References · 22

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39767.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-39767 · Security Note
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-12-CVE-2025-39767 · Vendor Advisory
• https://git.kernel.org/stable/c/e94cdb9fb279430cbd323a74c7ec124c85109747 · Patch
• https://osv.dev/vulnerability/BELL-CVE-2025-39767 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-39767 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2025-39767 · Vendor Advisory
• https://git.kernel.org/stable/c/5189c0b7c251363a4dd7678ed11b054c54f36f6f · Patch
• https://git.kernel.org/stable/c/a096b0280168d0c8b0ec1cbbfd56c8b81af8c7d8 · Patch
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-13-CVE-2025-39767 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-39767 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-6008-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-39767 · Vendor Advisory
• https://git.kernel.org/stable/c/63dbd8fb2af3a89466538599a9acb2d11ef65c06 · Patch
• https://osv.dev/vulnerability/CVE-2025-39767 · Vendor Advisory