CVE-2025-38297

PM: EM: Fix potential division-by-zero error in em_compute_costs()

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.

N/A

CVSS

Severity:

EPSS 0.02%

Affected: Linux Linux

References

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

Frequently Asked Questions

What is the severity of CVE-2025-38297?: CVE-2025-38297 has not yet been assigned a CVSS score.
How to fix CVE-2025-38297?: To fix CVE-2025-38297, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-38297 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2025-38297 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-38297?: CVE-2025-38297 affects Linux Linux, Linux Linux.

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