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

Vulnerability from cvelistv5 – Published: 2026-05-01 14:14 – Updated: 2026-05-01 14:14
VLAI?
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
References
Impacted products
Vendor Product Version
Linux 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)
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    Linux 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)
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{
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/common/ulpi.c"
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "4.2"
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              "status": "unaffected",
              "version": "0",
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              "status": "unaffected",
              "version": "5.10.253",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.203",
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            },
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              "status": "unaffected",
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              "lessThanOrEqual": "6.6.*",
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              "status": "unaffected",
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              "version": "6.19.12",
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              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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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",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/2f70ba9dae13a190673cc3f9b4aad52179738f60"
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          "url": "https://git.kernel.org/stable/c/ee248e6e941e4f2e634df2bd43e5f1ef810ab6df"
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        {
          "url": "https://git.kernel.org/stable/c/01af542392b5d41fd659d487015a71f627accce3"
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    "datePublished": "2026-05-01T14:14:51.895Z",
    "dateReserved": "2026-03-09T15:48:24.139Z",
    "dateUpdated": "2026-05-01T14:14:51.895Z",
    "state": "PUBLISHED"
  },
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  "vulnerability-lookup:meta": {
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      "date": "2026-05-05",
      "epss": "0.00024",
      "percentile": "0.06806"
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  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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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.



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