PT-2025-37481 · Linux+6 · Linux Kernel+6

Published 2025-01-01 · Updated 2026-05-26 · CVE-2025-39800

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 flaw exists in the Linux kernel’s btrfs subsystem within the btrfs copy root() function. Specifically, if an unexpected extent buffer generation is encountered during cloning, the transaction is not aborted, potentially allowing metadata with an unexpected generation to persist. The issue is addressed by aborting the transaction and returning an error code when an unexpected generation is detected.

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

Exploit

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

BDU:2025-15248

CVE-2025-39800

DLA-4328-1

DSA-6008-1

DSA-6009-1

ECHO-9F3F-FB92-8E15

OPENSUSE-SU-2025:20081-1

SUSE-SU-2025:03600-1

SUSE-SU-2025:03614-1

SUSE-SU-2025:03634-1

SUSE-SU-2025:20851-1

SUSE-SU-2025:20861-1

SUSE-SU-2025:20870-1

SUSE-SU-2025:20898-1

SUSE-SU-2025:21074-1

SUSE-SU-2025:21139-1

SUSE-SU-2025:21179-1

SUSE-SU-2025:3751-1

SUSE-SU-2025:4057-1

SUSE-SU-2025:4132-1

SUSE-SU-2025:4141-1

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

Debian

Linuxmint

Linux Kernel

Red Os

Suse

Ubuntu

Btrfs

References · 3551

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39800.json · Exploit
• https://ubuntu.com/security/CVE-2025-40333 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-68222 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38396 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38576 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-39734 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-22128 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-68183 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-23157 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-38217 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-39795 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-4328-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-39800 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-40049 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-68180 · Vendor Advisory