PT-2025-41367 · Linux+1 · Linux Kernel+1

Enjuk-Tnguy · Published 2025-10-09 · Updated 2026-03-13 · CVE-2025-39956

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-rc4-enjuk-tnguy-00865-gc4940196ab02

Description The Linux kernel contains an issue where a failure in the igc led setup() function during the probe process can lead to a kernel panic. This occurs because the igc probe() function fails and does not properly unregister the network device, resulting in a kernel BUG in free netdev(). The issue can be triggered using fault-injection frameworks like failslab. The fix involves treating LED setup failures as non-fatal, allowing the probe to continue with a warning message, and avoiding the kernel panic. The igc probe() function is involved in this issue.

Recommendations Update to Linux kernel version 6.17.0-rc4-enjuk-tnguy-00865-gc4940196ab02 or a later version to resolve this issue.

Exploit

Fix

Weakness Enumeration

CWE-431

Related Identifiers

BDU:2026-02759

CVE-2025-39956

OPENSUSE-SU-2025:20091-1

SUSE-SU-2025:21080-1

SUSE-SU-2025:21147-1

SUSE-SU-2025:21180-1

Affected Products

Linux Kernel

Suse

References · 213

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39956.json · Exploit
• https://git.kernel.org/stable/c/f05e82d8553232cef150a6dbb70ed67d162abb2b · Patch
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-13-CVE-2025-39956 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:21180-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:21147-1 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se18-bulletin-2026-0224SE18 · Vendor Advisory
• https://git.kernel.org/stable/c/528eb4e19ec0df30d0c9ae4074ce945667dde919 · Patch
• https://osv.dev/vulnerability/CVE-2025-39956 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2025:20091-1 · Vendor Advisory
• https://git.kernel.org/stable/c/bec504867acc7315de9cd96ef9161fa52a25abe8 · Patch
• https://osv.dev/vulnerability/BELL-CVE-2025-39956 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:21080-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2025-39956 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-39956 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-39956 · Vendor Advisory