ghsa-vhm6-v69m-pxx6
Vulnerability from github
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 PHY_MAX_ADDR 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.
{
"affected": [],
"aliases": [
"CVE-2025-38111"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-03T09:15:24Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mdiobus: Fix potential out-of-bounds read/write access\n\nWhen using publicly available tools like \u0027mdio-tools\u0027 to read/write data\nfrom/to network interface and its PHY via mdiobus, there is no verification of\nparameters passed to the ioctl and it accepts any mdio address.\nCurrently there is support for 32 addresses in kernel via PHY_MAX_ADDR define,\nbut it is possible to pass higher value than that via ioctl.\nWhile read/write operation should generally fail in this case,\nmdiobus provides stats array, where wrong address may allow out-of-bounds\nread/write.\n\nFix that by adding address verification before read/write operation.\nWhile this excludes this access from any statistics, it improves security of\nread/write operation.",
"id": "GHSA-vhm6-v69m-pxx6",
"modified": "2025-07-03T09:30:33Z",
"published": "2025-07-03T09:30:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38111"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/014ad9210373d2104f6ef10e6bb999a7a0a4c50e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/049af7ac45a6b407748ee0995278fd861e36df8f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0e629694126ca388916f059453a1c36adde219c4"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/19c5875e26c4ed5686d82a7d8f7051385461b9eb"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/73d478234a619f3476028cb02dee699c30ae8262"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b02d9d2732483e670bc34cb233d28e1d43b15da4"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bab6bca0834cbb5be2a7cfe59ec6ad016ec72608"
}
],
"schema_version": "1.4.0",
"severity": []
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.