{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2025-23161",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2025-23161"
  ],
  "published": "2025-05-01T13:03:03Z",
  "summary": "PCI: vmd: Make vmd_dev::cfg_lock a raw_spinlock_t type",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: vmd: Make vmd_dev::cfg_lock a raw_spinlock_t type\n\nThe access to the PCI config space via pci_ops::read and pci_ops::write is\na low-level hardware access. The functions can be accessed with disabled\ninterrupts even on PREEMPT_RT. The pci_lock is a raw_spinlock_t for this\npurpose.\n\nA spinlock_t becomes a sleeping lock on PREEMPT_RT, so it cannot be\nacquired with disabled interrupts. The vmd_dev::cfg_lock is accessed in\nthe same context as the pci_lock.\n\nMake vmd_dev::cfg_lock a raw_spinlock_t type so it can be used with\ninterrupts disabled.\n\nThis was reported as:\n\n  BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48\n  Call Trace:\n   rt_spin_lock+0x4e/0x130\n   vmd_pci_read+0x8d/0x100 [vmd]\n   pci_user_read_config_byte+0x6f/0xe0\n   pci_read_config+0xfe/0x290\n   sysfs_kf_bin_read+0x68/0x90\n\n[bigeasy: reword commit message]\nTested-off-by: Luis Claudio R. Goncalves <lgoncalv@redhat.com>\n[kwilczynski: commit log]\n[bhelgaas: add back report info from\nhttps://lore.kernel.org/lkml/20241218115951.83062-1-ryotkkr98@gmail.com/]",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.135",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-23161"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/c250262d6485ca333e9821f85b07eb383ec546b1"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/c2968c812339593ac6e2bdd5cc3adabe3f05fa53"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/13e5148f70e81991acbe0bab5b1b50ba699116e7"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5c3cfcf0b4bf43530788b08a8eaf7896ec567484"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/2358046ead696ca5c7c628d6c0e2c6792619a3e5"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/20d0a9062c031068fa39f725a32f182b709b5525"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/18056a48669a040bef491e63b25896561ee14d90"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}