PT-2025-28006 · Linux+6 · Linux Kernel+6

Published 2025-07-04 · Updated 2026-04-20 · CVE-2025-38231

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: A NULL pointer dereference issue has been identified in the Linux kernel. The problem occurs when laundromat work accesses nfsd ssc through nfs4 laundromat before nfsd ssc is initialized. Normally, the delayed start of laundromat work allows sufficient time for nfsd ssc initialization to complete. However, in certain situations where the kernel waits too long for userspace responses, the delayed work may start before nfsd ssc initialization finishes. This can cause a NULL pointer dereference.

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

AZL-64722

BDU:2025-10772

CVE-2025-38231

DLA-4327-1

DLA-4328-1

DSA-5973-1

ECHO-E784-59A3-8184

MGASA-2025-0218

MGASA-2025-0219

OPENSUSE-SU-2025:20081-1

SUSE-SU-2025:02853-1

SUSE-SU-2025:02923-1

SUSE-SU-2025:02969-1

SUSE-SU-2025:02996-1

SUSE-SU-2025:02997-1

SUSE-SU-2025:03011-1

SUSE-SU-2025:03023-1

SUSE-SU-2025:20577-1

SUSE-SU-2025:20586-1

SUSE-SU-2025:20601-1

SUSE-SU-2025:20602-1

SUSE-SU-2025:21074-1

SUSE-SU-2025:21139-1

SUSE-SU-2025:21179-1

SUSE-SU-2025_02853-1

SUSE-SU-2025_02969-1

SUSE-SU-2025_02996-1

SUSE-SU-2025_02997-1

SUSE-SU-2025_03011-1

SUSE-SU-2025_03023-1

USN-7774-1

USN-7774-2

USN-7774-3

USN-7774-4

USN-7774-5

USN-7775-1

USN-7775-2

USN-7775-3

USN-7776-1

USN-7833-1

USN-7833-2

USN-7833-3

USN-7833-4

USN-7834-1

USN-7856-1

USN-8028-1

USN-8028-2

USN-8028-3

USN-8028-4

USN-8028-5

USN-8028-6

USN-8028-7

USN-8028-8

USN-8031-1

USN-8031-2

USN-8031-3

USN-8052-1

USN-8052-2

USN-8074-1

USN-8074-2

USN-8126-1

Affected Products

Astra Linux

Debian

Linuxmint

Linux Kernel

Red Os

Suse

Ubuntu

References · 3244

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38231.json · Exploit
• https://ubuntu.com/security/CVE-2025-38145 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40238 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38714 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40169 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40105 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40070 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38474 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-7774-4 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-37828 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38090 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40127 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38117 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-68222 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40281 · Vendor Advisory