ghsa-2x8x-5r7x-jcgh
Vulnerability from github
Published
2025-05-09 09:33
Modified
2025-05-09 09:33
Details

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

pds_core: make wait_context part of q_info

Make the wait_context a full part of the q_info struct rather than a stack variable that goes away after pdsc_adminq_post() is done so that the context is still available after the wait loop has given up.

There was a case where a slow development firmware caused the adminq request to time out, but then later the FW finally finished the request and sent the interrupt. The handler tried to complete_all() the completion context that had been created on the stack in pdsc_adminq_post() but no longer existed. This caused bad pointer usage, kernel crashes, and much wailing and gnashing of teeth.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-37886"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-09T07:16:09Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\npds_core: make wait_context part of q_info\n\nMake the wait_context a full part of the q_info struct rather\nthan a stack variable that goes away after pdsc_adminq_post()\nis done so that the context is still available after the wait\nloop has given up.\n\nThere was a case where a slow development firmware caused\nthe adminq request to time out, but then later the FW finally\nfinished the request and sent the interrupt.  The handler tried\nto complete_all() the completion context that had been created\non the stack in pdsc_adminq_post() but no longer existed.\nThis caused bad pointer usage, kernel crashes, and much wailing\nand gnashing of teeth.",
  "id": "GHSA-2x8x-5r7x-jcgh",
  "modified": "2025-05-09T09:33:20Z",
  "published": "2025-05-09T09:33:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37886"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1d7c4b2b0bbfb09b55b2dc0e2355d7936bf89381"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3f77c3dfffc7063428b100c4945ca2a7a8680380"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/520f012fe75fb8efc9f16a57ef929a7a2115d892"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/66d7702b42ffdf0dce4808626088268a4e905ca6"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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