PT-2025-37217 · Linux+6 · Linux Kernel+6

Published 2025-06-30 · Updated 2026-05-26 · CVE-2025-39759

Positive Technologies (AI Summary)

CVSS v3.1

7.0

High

Base vector

AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

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

Description: A race condition exists between disabling quotas and running the quota rescan ioctl in the btrfs subsystem. This can lead to a use-after-free of qgroup records from the fs info->qgroup tree rbtree. The issue occurs when a task disables quotas while another task is running the rescan ioctl, potentially freeing qgroup records without holding the necessary lock.

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

Exploit

DoS

Race Condition

Use After Free

Weakness Enumeration

CWE-362

CWE-416

Related Identifiers

AZL-67205

AZL-73959

BDU:2025-15212

CVE-2025-39759

DLA-4328-1

DSA-6008-1

DSA-6009-1

ECHO-E03F-1992-6AAB

OPENSUSE-SU-2025:20081-1

SUSE-SU-2025:03600-1

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

SUSE-SU-2026:1668-1

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 · 3344

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39759.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