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

Vulnerability from cvelistv5 – Published: 2025-05-08 06:26 – Updated: 2026-05-11 21:15
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
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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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    "dateReserved": "2025-04-16T04:51:23.941Z",
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      "version": "4"
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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.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: n\u00facleo del controlador: se corrige una posible desreferencia de puntero nulo en dev_uevent(). Si el espacio de usuario lee el atributo de dispositivo \\\"uevent\\\" al mismo tiempo que otro subproceso desvincula el dispositivo de su controlador, cambiar de un puntero v\u00e1lido a nulo en dev-\u0026gt;driver puede provocar un fallo. Se soluciona esto usando READ_ONCE() al obtener el puntero y bloqueando la lista de k de los controladores del bus para garantizar que la instancia del controlador no desaparezca al acceder a ella. 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    "redhat_vex": {
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      "current_release_date": "2026-06-30T00:35:26+00:00",
      "cve": "CVE-2025-37800",
      "id": "CVE-2025-37800",
      "initial_release_date": "2025-05-08T00:00:00+00:00",
      "product_status:known_affected": "274",
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      "title": "kernel: driver core: fix potential NULL pointer dereference in dev_uevent()",
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      "current_release_date": "2026-07-15T06:18:26Z",
      "cve": "CVE-2025-37800",
      "id": "CVE-2025-37800",
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      "product_status:known_affected": "394",
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      "product_status:recommended": "410",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-37800",
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      "version": "37"
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  }
}



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Taxonomy of the tags.





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.

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.