GHSA-WJ4H-929J-75C8

Vulnerability from github – Published: 2025-05-20 18:30 – Updated: 2025-11-17 18:30
VLAI
Details

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

pds_core: remove write-after-free of client_id

A use-after-free error popped up in stress testing:

[Mon Apr 21 21:21:33 2025] BUG: KFENCE: use-after-free write in pdsc_auxbus_dev_del+0xef/0x160 [pds_core] [Mon Apr 21 21:21:33 2025] Use-after-free write at 0x000000007013ecd1 (in kfence-#47): [Mon Apr 21 21:21:33 2025] pdsc_auxbus_dev_del+0xef/0x160 [pds_core] [Mon Apr 21 21:21:33 2025] pdsc_remove+0xc0/0x1b0 [pds_core] [Mon Apr 21 21:21:33 2025] pci_device_remove+0x24/0x70 [Mon Apr 21 21:21:33 2025] device_release_driver_internal+0x11f/0x180 [Mon Apr 21 21:21:33 2025] driver_detach+0x45/0x80 [Mon Apr 21 21:21:33 2025] bus_remove_driver+0x83/0xe0 [Mon Apr 21 21:21:33 2025] pci_unregister_driver+0x1a/0x80

The actual device uninit usually happens on a separate thread scheduled after this code runs, but there is no guarantee of order of thread execution, so this could be a problem. There's no actual need to clear the client_id at this point, so simply remove the offending code.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-37916"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-20T16:15:28Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\npds_core: remove write-after-free of client_id\n\nA use-after-free error popped up in stress testing:\n\n[Mon Apr 21 21:21:33 2025] BUG: KFENCE: use-after-free write in pdsc_auxbus_dev_del+0xef/0x160 [pds_core]\n[Mon Apr 21 21:21:33 2025] Use-after-free write at 0x000000007013ecd1 (in kfence-#47):\n[Mon Apr 21 21:21:33 2025]  pdsc_auxbus_dev_del+0xef/0x160 [pds_core]\n[Mon Apr 21 21:21:33 2025]  pdsc_remove+0xc0/0x1b0 [pds_core]\n[Mon Apr 21 21:21:33 2025]  pci_device_remove+0x24/0x70\n[Mon Apr 21 21:21:33 2025]  device_release_driver_internal+0x11f/0x180\n[Mon Apr 21 21:21:33 2025]  driver_detach+0x45/0x80\n[Mon Apr 21 21:21:33 2025]  bus_remove_driver+0x83/0xe0\n[Mon Apr 21 21:21:33 2025]  pci_unregister_driver+0x1a/0x80\n\nThe actual device uninit usually happens on a separate thread\nscheduled after this code runs, but there is no guarantee of order\nof thread execution, so this could be a problem.  There\u0027s no\nactual need to clear the client_id at this point, so simply\nremove the offending code.",
  "id": "GHSA-wj4h-929j-75c8",
  "modified": "2025-11-17T18:30:23Z",
  "published": "2025-05-20T18:30:54Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37916"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/26dc701021302f11c8350108321d11763bd81dfe"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9b467c5bcdb45a41d2a49fbb9ffca73d1380e99b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c649b9653ed09196e91d3f4b16b679041b3c42e6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dfd76010f8e821b66116dec3c7d90dd2403d1396"
    }
  ],
  "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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