PT-2025-37333 · Linux · Linux Kernel

Published 2025-09-12 · Updated 2025-09-12 · CVE-2025-39799

Positive Technologies (AI Summary)

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

Description: The Linux kernel contains a flaw related to ACPI processor performance object handling. A check for pr->performance was added in a previous commit, which prevented frequency QoS requests from being added when a processor lacked a performance object. This caused a warning during CPU offline operations because the frequency QoS object was not added. The issue was addressed by moving the pr->performance check before calling acpi processor get platform limit(), ensuring the frequency QoS request is added even if the performance object is missing.

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

Related Identifiers

CVE-2025-39799

Affected Products

Linux Kernel

References · 17

• https://ubuntu.com/security/CVE-2025-39799 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-39799 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-39799 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2025-39799 · Security Note
• https://git.kernel.org/stable/c/bf2809541497749c4f2646b87bf75244f5a2a5d9 · Note
• https://twitter.com/CVEnew/status/1966536908613308928 · Twitter Post
• https://git.kernel.org/stable/c/8972d7dbdac029c9dbf62a45d7d8c71999785765 · Note
• https://git.kernel.org/stable/c/31ee723d6fc581b76396994a96b85be3e87f67d6 · Note
• https://t.me/CVEtracker/32389 · Telegram Post
• https://git.kernel.org/stable/c/fd9cad6b0676e0bb3a98ee0a8865a86e2f53eb07 · Note
• https://git.kernel.org/stable/c/d405ec23df13e6df599f5bd965a55d13420366b8 · Note
• https://twitter.com/VulmonFeeds/status/1966557182951842193 · Twitter Post
• https://git.kernel.org/stable/c/edc065c19257adfd9c356178dac021df661e169e · Note
• https://git.kernel.org/stable/c/fc36403e741d7674a44632313db33fa7605cb2b4 · Note
• https://git.kernel.org/stable/c/cb4b5f4a1e778f6a20d06d4eda6842714a817618 · Note