PT-2025-39132 · Linux+2 · Linux Kernel+2

Published 2025-08-12 · Updated 2025-11-25 · CVE-2025-39875

Positive Technologies (AI Summary)

CVSS v2.0

6.0

Medium

Base vector

AV:L/AC:H/Au:S/C:C/I:C/A:C

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

Description The igb driver experiences a NULL pointer dereference during the ethtool loopback test. This occurs because the test ring lacks an associated q vector when set up, specifically due to missing interrupts for test rings. A commit removed the napi id assignment, and the issue is resolved by using 0 as the last parameter in the xdp rxq info reg() function.

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

Exploit

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2025-13883

CVE-2025-39875

OPENSUSE-SU-2025:20081-1

SUSE-SU-2025:21074-1

SUSE-SU-2025:21139-1

SUSE-SU-2025:21179-1

Affected Products

Astra Linux

Linux Kernel

Suse

References · 1268

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39875.json · Exploit
• https://osv.dev/vulnerability/CVE-2025-39875 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2025:20081-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2025-39875 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-39875 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-39875 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:21139-1 · Vendor Advisory
• https://git.kernel.org/stable/c/473be7d39efd3be383e9c0c8e44b53508b4ffeb5 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-39875 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2025-39875 · Security Note
• https://git.kernel.org/stable/c/75871a525a596ff4d16c4aebc0018f8d0923c9b1 · Patch
• https://bdu.fstec.ru/vul/2025-13883 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:21074-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-39875 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:21179-1 · Vendor Advisory