Vulnerability-Lookup

GHSA-QM9X-FRX6-XCV6

Vulnerability from github – Published: 2026-06-03 18:33 – Updated: 2026-06-09 21:32

Details

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.

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-46269"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-03T18:16:28Z",
    "severity": "MODERATE"
  },
  "details": "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": "GHSA-qm9x-frx6-xcv6",
  "modified": "2026-06-09T21:32:21Z",
  "published": "2026-06-03T18:33:13Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46269"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1d0d361f4dbc2bb2003594f84e4b101fc6b508c0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3c7d637bfc3dfbd6471c68bd767f7eb8b5b09eba"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d8c128fb6c2277d95f3f6a4ce28b82c8370031f6"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-46269 (GCVE-0-2026-46269)

Vulnerability from cvelistv5 – Published: 2026-06-03 15:50 – Updated: 2026-06-03 15:50

Title

pinctrl: canaan: k230: Fix NULL pointer dereference when parsing devicetree

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.

Severity

No CVSS data available.

Assigner

Linux

References

3 references

URL	Tags
https://git.kernel.org/stable/c/3c7d637bfc3dfbd64…
https://git.kernel.org/stable/c/1d0d361f4dbc2bb20…
https://git.kernel.org/stable/c/d8c128fb6c2277d95…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: d94a32ac688f953dc9a9f12b5b4139ecad841bbb , < 3c7d637bfc3dfbd6471c68bd767f7eb8b5b09eba (git) Affected: d94a32ac688f953dc9a9f12b5b4139ecad841bbb , < 1d0d361f4dbc2bb2003594f84e4b101fc6b508c0 (git) Affected: d94a32ac688f953dc9a9f12b5b4139ecad841bbb , < d8c128fb6c2277d95f3f6a4ce28b82c8370031f6 (git) Affected: 02c1deb1bff2b6d242e29a51e56107495979a2b8 (git) Affected: 0ec03251d01494ef207089b5bd626becfd05fd86 (git) Affected: 6.15.10 , < 6.16 (semver) Affected: 6.16.1 , < 6.17 (semver)
Linux	Linux	Affected: 6.17 Unaffected: 0 , < 6.17 (semver) Unaffected: 6.18.14 , ≤ 6.18.* (semver) Unaffected: 6.19.4 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

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JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/pinctrl/pinctrl-k230.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "3c7d637bfc3dfbd6471c68bd767f7eb8b5b09eba",
              "status": "affected",
              "version": "d94a32ac688f953dc9a9f12b5b4139ecad841bbb",
              "versionType": "git"
            },
            {
              "lessThan": "1d0d361f4dbc2bb2003594f84e4b101fc6b508c0",
              "status": "affected",
              "version": "d94a32ac688f953dc9a9f12b5b4139ecad841bbb",
              "versionType": "git"
            },
            {
              "lessThan": "d8c128fb6c2277d95f3f6a4ce28b82c8370031f6",
              "status": "affected",
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              "versionType": "git"
            },
            {
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              "version": "02c1deb1bff2b6d242e29a51e56107495979a2b8",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "0ec03251d01494ef207089b5bd626becfd05fd86",
              "versionType": "git"
            },
            {
              "lessThan": "6.16",
              "status": "affected",
              "version": "6.15.10",
              "versionType": "semver"
            },
            {
              "lessThan": "6.17",
              "status": "affected",
              "version": "6.16.1",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/pinctrl/pinctrl-k230.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.17"
            },
            {
              "lessThan": "6.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.14",
                  "versionStartIncluding": "6.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "6.17",
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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          "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-03T15:50:11.254Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/d8c128fb6c2277d95f3f6a4ce28b82c8370031f6"
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      "title": "pinctrl: canaan: k230: Fix NULL pointer dereference when parsing devicetree",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46269",
    "datePublished": "2026-06-03T15:50:11.254Z",
    "dateReserved": "2026-05-13T15:03:33.109Z",
    "dateUpdated": "2026-06-03T15:50:11.254Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-QM9X-FRX6-XCV6

CVE-2026-46269 (GCVE-0-2026-46269)

Tags

Sightings

Nomenclature