pds_core: fix deadlock between reset thread and remove

{
  "id": "195bc28b15172eddb73e513ef9b5d612323ff052e82ad2f39f12d1d65e175e6e",
  "url": "https://osv.dev/vulnerability/CVE-2026-68319",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "pds_core: fix deadlock between reset thread and remove",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: pds_core: fix deadlock between reset thread and remove pci_reset_function() acquires device_lock before performing the reset. pdsc_remove() is called by the PCI core with device_lock already held. If pdsc_pci_reset_thread() is running when pdsc_remove() is called, destroy_workqueue() will block waiting for the work to complete, while the work is blocked waiting for device_lock - deadlock. Use pci_try_reset_function() which uses pci_dev_trylock() internally. This acquires both the device lock and the PCI config access lock without blocking - if either lock is contended, it returns -EAGAIN immediately. This avoids the deadlock while also ensuring proper config space access serialization during the reset. The pci_dev_get/put calls are also removed as they were unnecessary - the driver-owned workqueue is destroyed in pdsc_remove(), guaranteeing the work completes before remove returns. The PCI core holds its reference to pci_dev throughout the entire unbind sequence.",
    "evidence": "osv:CVE-2026-68319",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.12.101",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.42",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.1.6",
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    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-68319",
      "aliases": [
        "CVE-2026-68319"
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            "ecosystem": "Linux"
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      ],
      "modified": "2026-10-08T02:51:38.465884839Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/19ef775c91c6bf4bd2b60f6616f4e28b621cdd6a",
        "https://git.kernel.org/stable/c/54f905821f26d385fba407a920b51f0a752c76dc",
        "https://git.kernel.org/stable/c/90d9f3ef28843e6c35149324b8eefb427a7435c2",
        "https://git.kernel.org/stable/c/ab0eec0ff0a421737a37f510ceab5c6ea59cd05a",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68319.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-68319",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
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        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68319.json"
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    "related_cves": [
      {
        "value": "CVE-2026-68319",
        "evidence": "/id"
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    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 98330,
  "published_at": "2026-08-10T12:02:54.173+00:00"
}