Vulnerability-Lookup

GHSA-X34J-QCQJ-W3PM

Vulnerability from github – Published: 2026-05-01 15:30 – Updated: 2026-05-01 15:30

Details

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

usb: ulpi: fix double free in ulpi_register_interface() error path

When device_register() fails, ulpi_register() calls put_device() on ulpi->dev.

The device release callback ulpi_dev_release() drops the OF node reference and frees ulpi, but the current error path in ulpi_register_interface() then calls kfree(ulpi) again, causing a double free.

Let put_device() handle the cleanup through ulpi_dev_release() and avoid freeing ulpi again in ulpi_register_interface().

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{
  "affected": [],
  "aliases": [
    "CVE-2026-31759"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-01T15:16:38Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: ulpi: fix double free in ulpi_register_interface() error path\n\nWhen device_register() fails, ulpi_register() calls put_device() on\nulpi-\u003edev.\n\nThe device release callback ulpi_dev_release() drops the OF node\nreference and frees ulpi, but the current error path in\nulpi_register_interface() then calls kfree(ulpi) again, causing a\ndouble free.\n\nLet put_device() handle the cleanup through ulpi_dev_release() and\navoid freeing ulpi again in ulpi_register_interface().",
  "id": "GHSA-x34j-qcqj-w3pm",
  "modified": "2026-05-01T15:30:35Z",
  "published": "2026-05-01T15:30:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31759"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/01af542392b5d41fd659d487015a71f627accce3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/272a9b26c336a295e4e209157fed809706c1b1f7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2f70ba9dae13a190673cc3f9b4aad52179738f60"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/38c28fe25611099230f0965c925499bfcf46a795"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8763f8317bb389aded32a32b08f6751cfff657d2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a6e5461f076c2ef63159f18e5cdbd30b50f0bc15"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aaeae6533d77e6ed4def85baec01e2815ebbef61"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ee248e6e941e4f2e634df2bd43e5f1ef810ab6df"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-31759 (GCVE-0-2026-31759)

Vulnerability from cvelistv5 – Published: 2026-05-01 14:14 – Updated: 2026-05-01 14:14

Title

usb: ulpi: fix double free in ulpi_register_interface() error path

Summary

In the Linux kernel, the following vulnerability has been resolved: usb: ulpi: fix double free in ulpi_register_interface() error path When device_register() fails, ulpi_register() calls put_device() on ulpi->dev. The device release callback ulpi_dev_release() drops the OF node reference and frees ulpi, but the current error path in ulpi_register_interface() then calls kfree(ulpi) again, causing a double free. Let put_device() handle the cleanup through ulpi_dev_release() and avoid freeing ulpi again in ulpi_register_interface().

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/2f70ba9dae13a1906…
	https://git.kernel.org/stable/c/ee248e6e941e4f2e6…
	https://git.kernel.org/stable/c/272a9b26c336a295e…
	https://git.kernel.org/stable/c/aaeae6533d77e6ed4…
	https://git.kernel.org/stable/c/8763f8317bb389ade…
	https://git.kernel.org/stable/c/38c28fe2561109923…
	https://git.kernel.org/stable/c/a6e5461f076c2ef63…
	https://git.kernel.org/stable/c/01af542392b5d41fd…

Impacted products

Vendor

Product

Version

Linux

Affected: 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f , < 2f70ba9dae13a190673cc3f9b4aad52179738f60 (git)
Affected: 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f , < ee248e6e941e4f2e634df2bd43e5f1ef810ab6df (git)
Affected: 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f , < 272a9b26c336a295e4e209157fed809706c1b1f7 (git)
Affected: 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f , < aaeae6533d77e6ed4def85baec01e2815ebbef61 (git)
Affected: 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f , < 8763f8317bb389aded32a32b08f6751cfff657d2 (git)
Affected: 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f , < 38c28fe25611099230f0965c925499bfcf46a795 (git)
Affected: 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f , < a6e5461f076c2ef63159f18e5cdbd30b50f0bc15 (git)
Affected: 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f , < 01af542392b5d41fd659d487015a71f627accce3 (git)

Linux

Affected: 4.2
Unaffected: 0 , < 4.2 (semver)
Unaffected: 5.10.253 , ≤ 5.10.* (semver)
Unaffected: 5.15.203 , ≤ 5.15.* (semver)
Unaffected: 6.1.168 , ≤ 6.1.* (semver)
Unaffected: 6.6.134 , ≤ 6.6.* (semver)
Unaffected: 6.12.81 , ≤ 6.12.* (semver)
Unaffected: 6.18.22 , ≤ 6.18.* (semver)
Unaffected: 6.19.12 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/common/ulpi.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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            {
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              "versionType": "git"
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          "versions": [
            {
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              "version": "4.2"
            },
            {
              "lessThan": "4.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.253",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.203",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.168",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.134",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.81",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.22",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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          "nodes": [
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                  "versionEndExcluding": "5.10.253",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "5.15.203",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
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                  "versionStartIncluding": "4.2",
                  "vulnerable": true
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                  "vulnerable": true
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                {
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                },
                {
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                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
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              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: ulpi: fix double free in ulpi_register_interface() error path\n\nWhen device_register() fails, ulpi_register() calls put_device() on\nulpi-\u003edev.\n\nThe device release callback ulpi_dev_release() drops the OF node\nreference and frees ulpi, but the current error path in\nulpi_register_interface() then calls kfree(ulpi) again, causing a\ndouble free.\n\nLet put_device() handle the cleanup through ulpi_dev_release() and\navoid freeing ulpi again in ulpi_register_interface()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-01T14:14:51.895Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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        {
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        },
        {
          "url": "https://git.kernel.org/stable/c/01af542392b5d41fd659d487015a71f627accce3"
        }
      ],
      "title": "usb: ulpi: fix double free in ulpi_register_interface() error path",
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      }
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31759",
    "datePublished": "2026-05-01T14:14:51.895Z",
    "dateReserved": "2026-03-09T15:48:24.139Z",
    "dateUpdated": "2026-05-01T14:14:51.895Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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}

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-X34J-QCQJ-W3PM

CVE-2026-31759 (GCVE-0-2026-31759)

Tags

Sightings

Nomenclature