GHSA-234H-4JCX-FFP3
Vulnerability from github – Published: 2026-09-25 12:31 – Updated: 2026-09-25 12:31In the Linux kernel, the following vulnerability has been resolved:
net: macb: put the "mdio" child node reference on success
macb_mii_init() holds the reference returned by of_get_child_by_name() for macb_mdiobus_register() and drops it only on the error paths, so every successful probe leaks a node reference. On a CM5, overlay removal after four bind cycles reports
OF: ERROR: memory leak, expected refcount 1 instead of 5
Drop the reference after registration, where __mdiobus_register() has already taken its own for the lifetime of the bus.
{
"affected": [],
"aliases": [
"CVE-2026-97972"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-25T11:17:25Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: macb: put the \"mdio\" child node reference on success\n\nmacb_mii_init() holds the reference returned by of_get_child_by_name()\nfor macb_mdiobus_register() and drops it only on the error paths, so\nevery successful probe leaks a node reference. On a CM5, overlay\nremoval after four bind cycles reports\n\n OF: ERROR: memory leak, expected refcount 1 instead of 5\n\nDrop the reference after registration, where __mdiobus_register() has\nalready taken its own for the lifetime of the bus.",
"id": "GHSA-234h-4jcx-ffp3",
"modified": "2026-09-25T12:31:31Z",
"published": "2026-09-25T12:31:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-97972"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/382a373d9ea7a6ac4de9c022385b6217f65ae3cc"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5fba30080d298edb742396073372385c961578d3"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7d60dc7ff85b73a2119d582ca2d4456b30960380"
}
],
"schema_version": "1.4.0",
"severity": []
}
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