Description

In the Linux kernel, the following vulnerability has been resolved:

i40e: fix MMIO write access to an invalid page in i40e_clear_hw

When the device sends a specific input, an integer underflow can occur, leading
to MMIO write access to an invalid page.

Prevent the integer underflow by changing the type of related variables.

Classification

CVE ID: CVE-2025-38200

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.02% (probability of being exploited)

EPSS Percentile: 4.96% (scored less or equal to compared to others)

EPSS Date: 2025-07-06 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-38200
https://git.kernel.org/stable/c/872607632c658d3739e4e7889e4f3c419ae2c193
https://git.kernel.org/stable/c/5e75c9082987479e647c75ec8fdf18fa68263c42
https://git.kernel.org/stable/c/fecb2fc3fc10c95724407cc45ea35af4a65cdde2
https://git.kernel.org/stable/c/d88a1e8f024ba26e19350958fecbf771a9960352
https://git.kernel.org/stable/c/8cde755f56163281ec2c46b4ae8b61f532758a6f
https://git.kernel.org/stable/c/3502dd42f178dae9d54696013386bb52b4f2e655
https://git.kernel.org/stable/c/2a1f4f2e36442a9bdf771acf6ee86f3cf876e5ca
https://git.kernel.org/stable/c/015bac5daca978448f2671478c553ce1f300c21e

Timeline