CVE-2026-98565 (GCVE-0-2026-98565)
Vulnerability from cvelistv5
Published
2026-10-18 15:18
Modified
2026-10-19 09:21
Severity ?
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: ddda1ac116c852bb969541ed53cffef7255c4961
Version: ddda1ac116c852bb969541ed53cffef7255c4961
Version: ddda1ac116c852bb969541ed53cffef7255c4961
Version: ddda1ac116c852bb969541ed53cffef7255c4961
Version: ddda1ac116c852bb969541ed53cffef7255c4961
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{
  "containers": {
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/dsa/mt7530-mdio.c"
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          "versions": [
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              "status": "unaffected",
              "version": "7.3",
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      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "negate": false,
              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: dsa: mt7530: fix NULL dereference on unbind of MT7531 and MT7621\n\nThe core and io supplies are only requested for ID_MT7530: both the\ndevm_regulator_get() in probe and the regulator_enable() in\nmt7530_setup() are guarded by the switch id, but mt7530_remove()\ndisables them unconditionally. On an MT7621 or an MT7531 both pointers\nare still NULL from devm_kzalloc(), so rmmod or a sysfs unbind calls\nregulator_disable() on NULL."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:21:50.349Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/bd172580e624bac00d83abd5c4320d2e14d853bc"
        },
        {
          "url": "https://git.kernel.org/stable/c/e9a5298532780ecdd05c3220f3e1e3067b3537c3"
        },
        {
          "url": "https://git.kernel.org/stable/c/62c0e38b2e5034184d4502ce77bd178b29e59b83"
        },
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        },
        {
          "url": "https://git.kernel.org/stable/c/c2cdef41e0b4d8ed23a5b41e6ad4e64594e055e4"
        }
      ],
      "title": "net: dsa: mt7530: fix NULL dereference on unbind of MT7531 and MT7621",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98565",
    "datePublished": "2026-10-18T15:18:31.836Z",
    "dateReserved": "2026-09-25T10:25:14.357Z",
    "dateUpdated": "2026-10-19T09:21:50.349Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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