PT-2025-33766 · Linux+3 · Linux Kernel+3

Published 2025-08-19 · Updated 2025-12-15 · CVE-2025-38567

Positive Technologies (AI Summary)

CVSS v3.1

4.7

Medium

Base vector

AV:L/AC:H/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 reference leak in the nfsd open local fh() function. A race condition can occur when multiple calls to nfsd open local fh() both successfully call nfsd file acquire local(), resulting in an extra reference to the network. This leak causes the nfs server to hang during shutdown in the nfsd shutdown net() function while waiting for &nn->nfsd net free done.

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

Exploit

Race Condition

Weakness Enumeration

CWE-362

Related Identifiers

CVE-2025-38567

USN-7879-1

USN-7879-2

USN-7879-3

USN-7879-4

USN-7880-1

USN-7934-1

Affected Products

Astra Linux

Linuxmint

Linux Kernel

Ubuntu

References · 229

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38567.json · Exploit
• https://ubuntu.com/security/CVE-2025-38612 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38515 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38666 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38664 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38473 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38526 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38507 · Vendor Advisory
• https://git.kernel.org/stable/c/c4bf8f26c51e51bbb840935659a7b3b65a802c07 · Patch
• https://ubuntu.com/security/notices/USN-7879-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38351 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38585 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38561 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38491 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38628 · Vendor Advisory