PT-2025-37199 · Linux+1 · Linux Kernel+1

Published 2025-09-11 · Updated 2025-09-12 · CVE-2025-39740

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/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: The Linux kernel contains a use-after-free (UAF) issue within the drm/xe/migrate component. Specifically, a flaw exists where a fence object could be freed prematurely, leading to a potential UAF condition if a fence wait operation is performed on the freed object. The issue occurs when an error path is encountered during the migration process. The fix involves adjusting the order of operations to ensure the fence object is not freed before the fence wait operation is completed.

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

Exploit

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

CVE-2025-39740

Affected Products

Astra Linux

Linux Kernel

References · 11

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39740.json · Exploit
• https://git.kernel.org/stable/c/7e46fa64a4b94208563c3a5bf1d7f4346f94abea · Patch
• https://cve.org/CVERecord?id=CVE-2025-39740 · Security Note
• https://ubuntu.com/security/CVE-2025-39740 · Vendor Advisory
• https://git.kernel.org/stable/c/145832fbdd17b1d77ffd6cdd1642259e101d1b7e · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-39740 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-39740 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-39740 · Security Note
• https://twitter.com/CVEnew/status/1966191597118423459 · Twitter Post
• https://git.kernel.org/linus/145832fbdd17b1d77ffd6cdd1642259e101d1b7e · Note
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note