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CVE-2026-45874

Status: AnalyzedMedium (5.5)—

In the Linux kernel, the following vulnerability has been resolved:

phy: freescale: imx8qm-hsio: fix NULL pointer dereference

During the probe the refclk_pad pointer is set to NULL if the 'fsl,refclk-pad-mode' property is not defined in the devicetree node. But in imx_hsio_configure_clk_pad() this pointer is unconditionally used which could result in a NULL pointer dereference. So check the pointer before to use it.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Linux — Linux Kernel

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2026-45874",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
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  "affected": [
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      "affectedData": [
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          "vendor": "Linux",
          "product": "Linux",
          "versions": [
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              "status": "affected",
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              "lessThan": "a771b386cb6c6e582e7b50f8eeff3347ff887f71",
              "versionType": "git"
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            {
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          ],
          "programFiles": [
            "drivers/phy/freescale/phy-fsl-imx8qm-hsio.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.11"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.11",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.12.75",
              "versionType": "semver",
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            },
            {
              "status": "unaffected",
              "version": "6.18.14",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
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              "status": "unaffected",
              "version": "6.19.4",
              "versionType": "semver",
              "lessThanOrEqual": "6.19.*"
            },
            {
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/phy/freescale/phy-fsl-imx8qm-hsio.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-05-27T14:17:00.913",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/4dd5d4c0361af0a3fd24f45c815996abf4429770",
      "tags": [
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    },
    {
      "url": "https://git.kernel.org/stable/c/8d29e81e9cdec84d4b9acb1736550d35e86c88af",
      "tags": [
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    },
    {
      "url": "https://git.kernel.org/stable/c/a771b386cb6c6e582e7b50f8eeff3347ff887f71",
      "tags": [
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
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      "url": "https://git.kernel.org/stable/c/dd8b9ba3d9701832cfb5dcefd8b43250df28dbc2",
      "tags": [
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nphy: freescale: imx8qm-hsio: fix NULL pointer dereference\n\nDuring the probe the refclk_pad pointer is set to NULL if the\n'fsl,refclk-pad-mode' property is not defined in the devicetree node. But\nin imx_hsio_configure_clk_pad() this pointer is unconditionally used which\ncould result in a NULL pointer dereference. So check the pointer before to\nuse it."
    }
  ],
  "lastModified": "2026-06-25T21:05:35.437",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A05DCA5C-0E7E-47B5-899A-41DDF296199E",
              "versionEndExcluding": "6.12.75",
              "versionStartIncluding": "6.11"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "BF463CB7-1F58-4607-B847-77ED23E4B9B7",
              "versionEndExcluding": "6.18.14",
              "versionStartIncluding": "6.13"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "672A3E79-EC03-479D-8503-361DFBDC8092",
              "versionEndExcluding": "6.19.4",
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          "operator": "OR"
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}