Linux Kernel up to 6.12.33/6.15.2 PM em_compute_costs divide by zero

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Linux Kernel up to 6.12.33/6.15.2. Affected by this vulnerability is the function em_compute_costs of the component PM. Such manipulation leads to divide by zero. This vulnerability is referenced as CVE-2025-38297. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 6.12.33/6.15.2. Affected by this issue is the function em_compute_costs of the component PM. The manipulation with an unknown input leads to a divide by zero vulnerability. Using CWE to declare the problem leads to CWE-369. The product divides a value by zero. Impacted is availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: PM: EM: Fix potential division-by-zero error in em_compute_costs() When the device is of a non-CPU type, table[i].performance won't be initialized in the previous em_init_performance(), resulting in division by zero when calculating costs in em_compute_costs(). Since the 'cost' algorithm is only used for EAS energy efficiency calculations and is currently not utilized by other device drivers, we should add the _is_cpu_device(dev) check to prevent this division-by-zero issue.

The advisory is shared for download at git.kernel.org. This vulnerability is handled as CVE-2025-38297 since 04/16/2025. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 265934 (Ubuntu 24.04 LTS / 25.04 : Linux kernel vulnerabilities (USN-7769-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.12.34, 6.15.3 or 6.16-rc1 eliminates this vulnerability. Applying the patch 81d72f9241d884ec29524431f74f8009310cfa0c/14cbdd64f3870cf0a2d94b87919b9056448c59a0/179c0c7044a378198adb36f2a12410ab68cc730a is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (265934) and CERT Bund (WID-SEC-2025-1522). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Google Container-Optimized OS
  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • IBM QRadar SIEM
  • SUSE openSUSE
  • RESF Rocky Linux
  • Open Source Linux Kernel
  • Dell Avamar
  • Dell NetWorker

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Divide by zero
CWE: CWE-369 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 265934
Nessus Name: Ubuntu 24.04 LTS / 25.04 : Linux kernel vulnerabilities (USN-7769-1)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.12.34/6.15.3/6.16-rc1
Patch: 81d72f9241d884ec29524431f74f8009310cfa0c/14cbdd64f3870cf0a2d94b87919b9056448c59a0/179c0c7044a378198adb36f2a12410ab68cc730a

Timelineinfo

04/16/2025 CVE reserved
07/10/2025 +85 days Advisory disclosed
07/10/2025 +0 days VulDB entry created
12/07/2025 +150 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-38297 (🔒)
GCVE (CVE): GCVE-0-2025-38297
GCVE (VulDB): GCVE-100-315920
CERT Bund: WID-SEC-2025-1522 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 07/10/2025 10:16
Updated: 12/07/2025 23:05
Changes: 07/10/2025 10:16 (59), 09/28/2025 08:37 (2), 10/11/2025 08:13 (7), 11/02/2025 18:37 (1), 11/20/2025 00:48 (11), 12/07/2025 23:05 (1)
Complete: 🔍
Cache ID: 216::103

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