PCI: vmd: Make vmd_dev::cfg_lock a raw_spinlock_t type

{
  "id": "004586fb05898c5a417f38d354fb45302f7261690ce4f8426410b6c9fcd58812",
  "url": "https://osv.dev/vulnerability/CVE-2025-23161",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "PCI: vmd: Make vmd_dev::cfg_lock a raw_spinlock_t type",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: PCI: vmd: Make vmd_dev::cfg_lock a raw_spinlock_t type The access to the PCI config space via pci_ops::read and pci_ops::write is a low-level hardware access. The functions can be accessed with disabled interrupts even on PREEMPT_RT. The pci_lock is a raw_spinlock_t for this purpose. A spinlock_t becomes a sleeping lock on PREEMPT_RT, so it cannot be acquired with disabled interrupts. The vmd_dev::cfg_lock is accessed in the same context as the pci_lock. Make vmd_dev::cfg_lock a raw_spinlock_t type so it can be used with interrupts disabled. This was reported as: BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48 Call Trace: rt_spin_lock+0x4e/0x130 vmd_pci_read+0x8d/0x100 [vmd] pci_user_read_config_byte+0x6f/0xe0 pci_read_config+0xfe/0x290 sysfs_kf_bin_read+0x68/0x90 [bigeasy: reword commit message] Tested-off-by: Luis Claudio R. Goncalves [kwilczynski: commit log] [bhelgaas: add back report info from https://lore.kernel.org/lkml/20241218115951.83062-1-ryotkkr98@gmail.com/]",
    "evidence": "osv:CVE-2025-23161",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.15.181",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.135",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.88",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.24",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.13.12",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.14.3",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2025-23161",
      "aliases": [
        "CVE-2025-23161"
      ],
      "affected": [
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                  "fixed": "c2968c812339593ac6e2bdd5cc3adabe3f05fa53"
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                  "fixed": "13e5148f70e81991acbe0bab5b1b50ba699116e7"
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            "ecosystem": "Linux"
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      ],
      "modified": "2026-10-28T02:30:34.088245423Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/13e5148f70e81991acbe0bab5b1b50ba699116e7",
        "https://git.kernel.org/stable/c/18056a48669a040bef491e63b25896561ee14d90",
        "https://git.kernel.org/stable/c/20d0a9062c031068fa39f725a32f182b709b5525",
        "https://git.kernel.org/stable/c/2358046ead696ca5c7c628d6c0e2c6792619a3e5",
        "https://git.kernel.org/stable/c/5c3cfcf0b4bf43530788b08a8eaf7896ec567484",
        "https://git.kernel.org/stable/c/c250262d6485ca333e9821f85b07eb383ec546b1",
        "https://git.kernel.org/stable/c/c2968c812339593ac6e2bdd5cc3adabe3f05fa53",
        "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/23xxx/CVE-2025-23161.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-23161",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/23xxx/CVE-2025-23161.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-23161",
        "evidence": "/id"
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    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 501227,
  "published_at": "2025-05-01T12:55:46.021+00:00"
}