CVE-2025-37800 (GCVE-0-2025-37800)

Vulnerability from cvelistv5 – Published: 2025-05-08 06:26 – Updated: 2026-01-02 15:29
VLAI?
Title
driver core: fix potential NULL pointer dereference in dev_uevent()
Summary
In the Linux kernel, the following vulnerability has been resolved: driver core: fix potential NULL pointer dereference in dev_uevent() If userspace reads "uevent" device attribute at the same time as another threads unbinds the device from its driver, change to dev->driver from a valid pointer to NULL may result in crash. Fix this by using READ_ONCE() when fetching the pointer, and take bus' drivers klist lock to make sure driver instance will not disappear while we access it. Use WRITE_ONCE() when setting the driver pointer to ensure there is no tearing.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 16574dccd8f62dc1b585325f8a6a0aab10047ed8 , < abe56be73eb10a677d16066f65ff9d30251f5eee (git)
Affected: 16574dccd8f62dc1b585325f8a6a0aab10047ed8 , < 2b344e779d9afd0fcb5ee4000e4d0fc7d8d867eb (git)
Affected: 16574dccd8f62dc1b585325f8a6a0aab10047ed8 , < 3781e4b83e174364998855de777e184cf0b62c40 (git)
Affected: 16574dccd8f62dc1b585325f8a6a0aab10047ed8 , < 18daa52418e7e4629ed1703b64777294209d2622 (git)
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    Linux Linux Affected: 2.6.22
Unaffected: 0 , < 2.6.22 (semver)
Unaffected: 6.6.89 , ≤ 6.6.* (semver)
Unaffected: 6.12.26 , ≤ 6.12.* (semver)
Unaffected: 6.14.5 , ≤ 6.14.* (semver)
Unaffected: 6.15 , ≤ * (original_commit_for_fix)
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{
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          "product": "Linux",
          "programFiles": [
            "drivers/base/base.h",
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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\ndriver core: fix potential NULL pointer dereference in dev_uevent()\n\nIf userspace reads \"uevent\" device attribute at the same time as another\nthreads unbinds the device from its driver, change to dev-\u003edriver from a\nvalid pointer to NULL may result in crash. Fix this by using READ_ONCE()\nwhen fetching the pointer, and take bus\u0027 drivers klist lock to make sure\ndriver instance will not disappear while we access it.\n\nUse WRITE_ONCE() when setting the driver pointer to ensure there is no\ntearing."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-02T15:29:02.184Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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          "url": "https://git.kernel.org/stable/c/abe56be73eb10a677d16066f65ff9d30251f5eee"
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          "url": "https://git.kernel.org/stable/c/2b344e779d9afd0fcb5ee4000e4d0fc7d8d867eb"
        },
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          "url": "https://git.kernel.org/stable/c/3781e4b83e174364998855de777e184cf0b62c40"
        },
        {
          "url": "https://git.kernel.org/stable/c/18daa52418e7e4629ed1703b64777294209d2622"
        }
      ],
      "title": "driver core: fix potential NULL pointer dereference in dev_uevent()",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-37800",
    "datePublished": "2025-05-08T06:26:01.125Z",
    "dateReserved": "2025-04-16T04:51:23.941Z",
    "dateUpdated": "2026-01-02T15:29:02.184Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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