fkie_cve-2025-37946
Vulnerability from fkie_nvd
Published
2025-05-20 16:15
Modified
2025-05-21 20:24
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: s390/pci: Fix duplicate pci_dev_put() in disable_slot() when PF has child VFs With commit bcb5d6c76903 ("s390/pci: introduce lock to synchronize state of zpci_dev's") the code to ignore power off of a PF that has child VFs was changed from a direct return to a goto to the unlock and pci_dev_put() section. The change however left the existing pci_dev_put() untouched resulting in a doubple put. This can subsequently cause a use after free if the struct pci_dev is released in an unexpected state. Fix this by removing the extra pci_dev_put().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/05a2538f2b48500cf4e8a0a0ce76623cc5bafcf1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/957529baef142d95e0d1b1bea786675bd47dbe53
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c488f8b53e156d6dcc0514ef0afa3a33376b8f9e
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/pci: Fix duplicate pci_dev_put() in disable_slot() when PF has child VFs\n\nWith commit bcb5d6c76903 (\"s390/pci: introduce lock to synchronize state\nof zpci_dev\u0027s\") the code to ignore power off of a PF that has child VFs\nwas changed from a direct return to a goto to the unlock and\npci_dev_put() section. The change however left the existing pci_dev_put()\nuntouched resulting in a doubple put. This can subsequently cause a use\nafter free if the struct pci_dev is released in an unexpected state.\nFix this by removing the extra pci_dev_put()."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: s390/pci: Se ha corregido un error pci_dev_put() duplicado en disabled_slot() cuando un PF tiene VFs secundarios. Con el commit bcb5d6c76903 (\"s390/pci: introducir un bloqueo para sincronizar el estado de zpci_dev\"), el c\u00f3digo para ignorar el apagado de un PF con VFs secundarios se cambi\u00f3 de un retorno directo a un goto a la secci\u00f3n de desbloqueo y pci_dev_put(). Sin embargo, el cambio dej\u00f3 intacto el pci_dev_put() existente, lo que result\u00f3 en un doble put. Esto puede provocar un use after free si la estructura pci_dev se libera en un estado inesperado. Se soluciona eliminando el pci_dev_put() adicional."
    }
  ],
  "id": "CVE-2025-37946",
  "lastModified": "2025-05-21T20:24:58.133",
  "metrics": {},
  "published": "2025-05-20T16:15:32.577",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/05a2538f2b48500cf4e8a0a0ce76623cc5bafcf1"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/957529baef142d95e0d1b1bea786675bd47dbe53"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c488f8b53e156d6dcc0514ef0afa3a33376b8f9e"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.