ghsa-q73c-hqqp-jcp7
Vulnerability from github
Published
2024-12-27 15:31
Modified
2025-01-14 15:30
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details

In the Linux kernel, the following vulnerability has been resolved:

PCI: endpoint: Fix PCI domain ID release in pci_epc_destroy()

pci_epc_destroy() invokes pci_bus_release_domain_nr() to release the PCI domain ID, but there are two issues:

  • 'epc->dev' is passed to pci_bus_release_domain_nr() which was already freed by device_unregister(), leading to a use-after-free issue.

  • Domain ID corresponds to the EPC device parent, so passing 'epc->dev' is also wrong.

Fix these issues by passing 'epc->dev.parent' to pci_bus_release_domain_nr() and also do it before device_unregister().

[mani: reworded subject and description]

Show details on source website

To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2024-56561"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-12-27T15:15:14Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: endpoint: Fix PCI domain ID release in pci_epc_destroy()\n\npci_epc_destroy() invokes pci_bus_release_domain_nr() to release the PCI\ndomain ID, but there are two issues:\n\n  - \u0027epc-\u003edev\u0027 is passed to pci_bus_release_domain_nr() which was already\n    freed by device_unregister(), leading to a use-after-free issue.\n\n  - Domain ID corresponds to the EPC device parent, so passing \u0027epc-\u003edev\u0027\n    is also wrong.\n\nFix these issues by passing \u0027epc-\u003edev.parent\u0027 to\npci_bus_release_domain_nr() and also do it before device_unregister().\n\n[mani: reworded subject and description]",
  "id": "GHSA-q73c-hqqp-jcp7",
  "modified": "2025-01-14T15:30:50Z",
  "published": "2024-12-27T15:31:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-56561"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4acc902ed3743edd4ac2d3846604a99d17104359"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c74a1df6c2a2df7dd45c3fc1a5edc29a075dcf22"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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