net: macb: put the "mdio" child node reference on success
In 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.
CVE-2026-97972
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-97972
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "8a6631f1cece09047fa44608d21d520ca65ce7d8",
"lessThan": "5fba30080d298edb742396073372385c961578d3",
"versionType": "git"
},
{
"status": "affected",
"version": "8a6631f1cece09047fa44608d21d520ca65ce7d8",
"lessThan": "7d60dc7ff85b73a2119d582ca2d4456b30960380",
"versionType": "git"
},
{
"status": "affected",
"version": "8a6631f1cece09047fa44608d21d520ca65ce7d8",
"lessThan": "382a373d9ea7a6ac4de9c022385b6217f65ae3cc",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/ethernet/cadence/macb_main.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.13"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.13",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.18.53",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.7",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/ethernet/cadence/macb_main.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-97972
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38108 · Revision 1
- Added to Heist Feed
- Publisher date