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.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

Configuration 1 [-]

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

No data.

References
Link Providers
https://git.kernel.org/stable/c/14cbdd64f3870cf0a2d94b87919b9056448c59a0 cve-icon cve-icon
https://git.kernel.org/stable/c/179c0c7044a378198adb36f2a12410ab68cc730a cve-icon cve-icon
https://git.kernel.org/stable/c/81d72f9241d884ec29524431f74f8009310cfa0c cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025071012-CVE-2025-38297-9dee@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-38297 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-38297 cve-icon
History

Wed, 19 Nov 2025 20:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-369
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

Wed, 16 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00017}

 epss

{'score': 0.00022}

Fri, 11 Jul 2025 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Moderate

Thu, 10 Jul 2025 08:00:00 +0000

Type Values Removed Values Added
Description 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.
Title PM: EM: Fix potential division-by-zero error in em_compute_costs()
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-07-10T07:42:10.918Z

Updated: 2025-07-28T04:17:50.092Z

Reserved: 2025-04-16T04:51:24.002Z

Link: CVE-2025-38297

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2025-07-10T08:15:28.390

Modified: 2025-11-19T20:13:33.573

Link: CVE-2025-38297

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-07-10T00:00:00Z

Links: CVE-2025-38297 - Bugzilla