CVE-2025-38297
N/A
N/A
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 1b600da510735a0f92c8b4140a7e2cb037a6a6c3 < 81d72f9241d884ec29524431f74f8009310cfa0c | affected |
| Linux | Linux | 1b600da510735a0f92c8b4140a7e2cb037a6a6c3 < 14cbdd64f3870cf0a2d94b87919b9056448c59a0 | affected |
| Linux | Linux | 1b600da510735a0f92c8b4140a7e2cb037a6a6c3 < 179c0c7044a378198adb36f2a12410ab68cc730a | affected |
| Linux | Linux | 6.9 | affected |
| Linux | Linux | 0 < 6.9 | unaffected |
| Linux | Linux | 6.12.34 <= 6.12.* | unaffected |
| Linux | Linux | 6.15.3 <= 6.15.* | unaffected |
| Linux | Linux | 6.16 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/81d72f9241d884ec29524431f74f8009310cfa0c
- https://git.kernel.org/stable/c/14cbdd64f3870cf0a2d94b87919b9056448c59a0
- https://git.kernel.org/stable/c/179c0c7044a378198adb36f2a12410ab68cc730a
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