FKIE_CVE-2026-46269

Vulnerability from fkie_nvd - Published: 2026-06-03 18:16 - Updated: 2026-06-09 19:51
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: pinctrl: canaan: k230: Fix NULL pointer dereference when parsing devicetree When probing the k230 pinctrl driver, the kernel triggers a NULL pointer dereference. The crash trace showed: [ 0.732084] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000068 [ 0.740737] ... [ 0.776296] epc : k230_pinctrl_probe+0x1be/0x4fc In k230_pinctrl_parse_functions(), we attempt to retrieve the device pointer via info->pctl_dev->dev, but info->pctl_dev is only initialized after k230_pinctrl_parse_dt() completes. At the time of DT parsing, info->pctl_dev is still NULL, leading to the invalid dereference of info->pctl_dev->dev. Use the already available device pointer from platform_device instead of accessing through uninitialized pctl_dev.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1d0d361f4dbc2bb2003594f84e4b101fc6b508c0Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3c7d637bfc3dfbd6471c68bd767f7eb8b5b09ebaPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d8c128fb6c2277d95f3f6a4ce28b82c8370031f6Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
To clipboard 

{
  "configurations": [
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      "nodes": [
        {
          "cpeMatch": [
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              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "8E12C24E-0833-48D3-9A8D-574823A693F0",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npinctrl: canaan: k230: Fix NULL pointer dereference when parsing devicetree\n\nWhen probing the k230 pinctrl driver, the kernel triggers a NULL pointer\ndereference. The crash trace showed:\n[    0.732084] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000068\n[    0.740737] ...\n[    0.776296] epc : k230_pinctrl_probe+0x1be/0x4fc\n\nIn k230_pinctrl_parse_functions(), we attempt to retrieve the device\npointer via info-\u003epctl_dev-\u003edev, but info-\u003epctl_dev is only initialized\nafter k230_pinctrl_parse_dt() completes.\n\nAt the time of DT parsing, info-\u003epctl_dev is still NULL, leading to\nthe invalid dereference of info-\u003epctl_dev-\u003edev.\n\nUse the already available device pointer from platform_device\ninstead of accessing through uninitialized pctl_dev."
    }
  ],
  "id": "CVE-2026-46269",
  "lastModified": "2026-06-09T19:51:51.733",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
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  "published": "2026-06-03T18:16:28.593",
  "references": [
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      "tags": [
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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