PT-2025-37237 · Linux+2 · Linux Kernel+2

Published 2025-08-05 · Updated 2026-04-08 · CVE-2025-39780

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 related to invalid task state transitions when using the sched ext scheduler. This issue occurs because initialization is skipped for tasks that are already dead (usage counter set to zero), but these tasks are not excluded during the scheduling class transition phase. This can result in warnings during hotplug selftests and potentially other unexpected behavior.

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

Exploit

Improper Initialization

Weakness Enumeration

CWE-665

Related Identifiers

BDU:2025-15214

CVE-2025-39780

DSA-6008-1

Affected Products

Astra Linux

Linux Kernel

Red Os

References · 24

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39780.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-39780 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-39780 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2025-25754.html · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2025-39780 · Security Note
• https://git.kernel.org/stable/c/786f6314604b34c3e7de5f733f4e08e35c448a50 · Patch
• https://osv.dev/vulnerability/BELL-CVE-2025-39780 · Vendor Advisory
• https://git.kernel.org/stable/c/ddf7233fcab6c247379d0928d46cc316ee122229 · Patch
• https://git.kernel.org/stable/c/6a32cbe95029ebe21cc08349fd7ef2a3d32d2043 · Patch
• https://security-tracker.debian.org/tracker/CVE-2025-39780 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-39780 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-13-CVE-2025-39780 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-15214 · Security Note
• https://osv.dev/vulnerability/DSA-6008-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-39780 · Vendor Advisory