CVE-2025-38111

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Source
https://cve.org/CVERecord?id=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
2025-07-03T08:35:20.643Z
Modified
2026-03-12T02:18:29.518141Z
Summary
net/mdiobus: Fix potential out-of-bounds read/write access
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.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38111.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
080bb352fad00d04995102f681b134e3754bfb6e
Fixed
19c5875e26c4ed5686d82a7d8f7051385461b9eb
Fixed
014ad9210373d2104f6ef10e6bb999a7a0a4c50e
Fixed
73d478234a619f3476028cb02dee699c30ae8262
Fixed
bab6bca0834cbb5be2a7cfe59ec6ad016ec72608
Fixed
b02d9d2732483e670bc34cb233d28e1d43b15da4
Fixed
049af7ac45a6b407748ee0995278fd861e36df8f
Fixed
0e629694126ca388916f059453a1c36adde219c4

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38111.json"