net: dsa: mt7530: fix NULL dereference on unbind of MT7531 and MT7621
In the Linux kernel, the following vulnerability has been resolved: net: dsa: mt7530: fix NULL dereference on unbind of MT7531 and MT7621 The core and io supplies are only requested for ID_MT7530: both the devm_regulator_get() in probe and the regulator_enable() in mt7530_setup() are guarded by the switch id, but mt7530_remove() disables them unconditionally. On an MT7621 or an MT7531 both pointers are still NULL from devm_kzalloc(), so rmmod or a sysfs unbind calls regulator_disable() on NULL.
CVE-2026-98565
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-2026-98565
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": "ddda1ac116c852bb969541ed53cffef7255c4961",
"lessThan": "bd172580e624bac00d83abd5c4320d2e14d853bc",
"versionType": "git"
},
{
"status": "affected",
"version": "ddda1ac116c852bb969541ed53cffef7255c4961",
"lessThan": "e9a5298532780ecdd05c3220f3e1e3067b3537c3",
"versionType": "git"
},
{
"status": "affected",
"version": "ddda1ac116c852bb969541ed53cffef7255c4961",
"lessThan": "62c0e38b2e5034184d4502ce77bd178b29e59b83",
"versionType": "git"
},
{
"status": "affected",
"version": "ddda1ac116c852bb969541ed53cffef7255c4961",
"lessThan": "aae2a1f1e3a0ac5eeb439262a2328a2a392413ac",
"versionType": "git"
},
{
"status": "affected",
"version": "ddda1ac116c852bb969541ed53cffef7255c4961",
"lessThan": "c2cdef41e0b4d8ed23a5b41e6ad4e64594e055e4",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/dsa/mt7530-mdio.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.1"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.1",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.158",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.112",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.55",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.9",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/dsa/mt7530-mdio.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98565
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38585 · Revision 1
- Added to Heist Feed
- Publisher date