PT-2025-37976 · Linux+1 · Linux Kernel+1

Published 2025-08-25 · Updated 2026-03-13 · CVE-2025-39831

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 prior to 6.17.0-rc2-virtme #134

Description The fbnic driver had an issue where phylink resume was invoked as part of the fbnic up path while not holding the RTNL lock. This could lead to locking assertions during PM resume. The fix involves moving the phylink resume operation into the ndo open path, ensuring correct locking and bringing the phylink interface online simultaneously with the network interface.

Recommendations Update to a version of the Linux kernel newer than 6.17.0-rc2-virtme #134.

Exploit

Fix

Assertion Failure

Weakness Enumeration

CWE-617

Related Identifiers

BDU:2025-14984

CVE-2025-39831

DSA-6008-1

OPENSUSE-SU-2025:20172-1

SUSE-SU-2026:20012-1

SUSE-SU-2026:20015-1

SUSE-SU-2026:20021-1

Affected Products

Astra Linux

Linux Kernel

References · 250

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39831.json · Exploit
• https://wiki.astralinux.ru/astra-linux-se18-bulletin-2025-1113SE18 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2025-39831 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-6008-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-39831 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-14984 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2026:20021-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2025-39831 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20012-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-39831 · Vendor Advisory
• https://git.kernel.org/stable/c/3ac5f54e47eb348a4bc26e600c63b4d778a22e23 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-39831 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2025:20172-1 · Vendor Advisory
• https://git.kernel.org/stable/c/7aab65c62a8a8b48c02e600fe9367b2af662fcb6 · Patch
• https://git.kernel.org/stable/c/6ede14a2c6365e7e5d855643c7c8390b5268c467 · Patch