CVE-2025-38297 Information

Jul 12, 2025 cve

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.

Reference

https://git.kernel.org/stable/c/14cbdd64f3870cf0a2d94b87919b9056448c59a0 https://git.kernel.org/stable/c/179c0c7044a378198adb36f2a12410ab68cc730a https://git.kernel.org/stable/c/81d72f9241d884ec29524431f74f8009310cfa0c

CNNVD-202507-1423 (Published: 2025-07-10)

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