ghsa-f357-m44q-68mm
Vulnerability from github
Published
2025-05-20 18:30
Modified
2025-05-20 18:30
Details

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().

Show details on source website

To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2025-37946"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-20T16:15:32Z",
    "severity": null
  },
  "details": "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().",
  "id": "GHSA-f357-m44q-68mm",
  "modified": "2025-05-20T18:30:56Z",
  "published": "2025-05-20T18:30:56Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37946"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/05a2538f2b48500cf4e8a0a0ce76623cc5bafcf1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/957529baef142d95e0d1b1bea786675bd47dbe53"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c488f8b53e156d6dcc0514ef0afa3a33376b8f9e"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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.
  • 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.