CVE-2025-38111

Source
https://nvd.nist.gov/vuln/detail/CVE-2025-38111
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38111.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-38111
Downstream
Related
Published
2025-07-03T09:15:24Z
Modified
2025-08-12T21:01:39Z
Summary
[none]
Details

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

net/mdiobus: Fix potential out-of-bounds read/write access

When using publicly available tools like 'mdio-tools' to read/write data from/to network interface and its PHY via mdiobus, there is no verification of parameters passed to the ioctl and it accepts any mdio address. Currently there is support for 32 addresses in kernel via PHYMAXADDR define, but it is possible to pass higher value than that via ioctl. While read/write operation should generally fail in this case, mdiobus provides stats array, where wrong address may allow out-of-bounds read/write.

Fix that by adding address verification before read/write operation. While this excludes this access from any statistics, it improves security of read/write operation.

References

Affected packages