fkie_cve-2025-23161
Vulnerability from fkie_nvd
Published
2025-05-01 13:15
Modified
2025-11-05 17:51
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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 <lgoncalv@redhat.com> [kwilczynski: commit log] [bhelgaas: add back report info from https://lore.kernel.org/lkml/20241218115951.83062-1-ryotkkr98@gmail.com/]
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/13e5148f70e81991acbe0bab5b1b50ba699116e7Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/18056a48669a040bef491e63b25896561ee14d90Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/20d0a9062c031068fa39f725a32f182b709b5525Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2358046ead696ca5c7c628d6c0e2c6792619a3e5Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5c3cfcf0b4bf43530788b08a8eaf7896ec567484Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c250262d6485ca333e9821f85b07eb383ec546b1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c2968c812339593ac6e2bdd5cc3adabe3f05fa53Patch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/05/msg00045.htmlMailing List
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
debian debian_linux 11.0


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E1AE45B7-B31B-48DF-9F83-959F56624B62",
              "versionEndExcluding": "5.15.181",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "5B9ACE29-7445-4B6F-B761-6367C005E275",
              "versionEndExcluding": "6.1.135",
              "versionStartIncluding": "5.16",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "6E5947E5-45E3-462A-829B-382B3B1C61BD",
              "versionEndExcluding": "6.6.88",
              "versionStartIncluding": "6.2",
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            },
            {
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              "matchCriteriaId": "1D35A8A8-F3EC-45E6-AD37-1F154B27529D",
              "versionEndExcluding": "6.12.24",
              "versionStartIncluding": "6.7",
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              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "4A475784-BF3B-4514-81EE-49C8522FB24A",
              "versionEndExcluding": "6.13.12",
              "versionStartIncluding": "6.13",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "483E2E15-2135-4EC6-AB64-16282C5EF704",
              "versionEndExcluding": "6.14.3",
              "versionStartIncluding": "6.14",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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 \u003clgoncalv@redhat.com\u003e\n[kwilczynski: commit log]\n[bhelgaas: add back report info from\nhttps://lore.kernel.org/lkml/20241218115951.83062-1-ryotkkr98@gmail.com/]"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: PCI: vmd: Convertir vmd_dev::cfg_lock en tipo raw_spinlock_t El acceso al espacio de configuraci\u00f3n PCI mediante pci_ops::read y pci_ops::write es un acceso de hardware de bajo nivel. Se puede acceder a las funciones con interrupciones deshabilitadas incluso en PREEMPT_RT. El pci_lock es un raw_spinlock_t para este prop\u00f3sito. Un spinlock_t se convierte en un bloqueo inactivo en PREEMPT_RT, por lo que no se puede adquirir con interrupciones deshabilitadas. Se accede a vmd_dev::cfg_lock en el mismo contexto que el pci_lock. Convertir vmd_dev::cfg_lock en un tipo raw_spinlock_t para que pueda usarse con interrupciones deshabilitadas. Esto se inform\u00f3 como: ERROR: funci\u00f3n inactiva llamada desde un contexto no v\u00e1lido en kernel/locking/spinlock_rt.c:48 Rastreo de llamadas: 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: reformular el mensaje de confirmaci\u00f3n] Probado por: Luis Claudio R. Goncalves  [kwilczynski: registro de confirmaciones] [bhelgaas: agregar informaci\u00f3n del informe de https://lore.kernel.org/lkml/20241218115951.83062-1-ryotkkr98@gmail.com/]"
    }
  ],
  "id": "CVE-2025-23161",
  "lastModified": "2025-11-05T17:51:58.023",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-05-01T13:15:52.060",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/13e5148f70e81991acbe0bab5b1b50ba699116e7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      ],
      "url": "https://git.kernel.org/stable/c/18056a48669a040bef491e63b25896561ee14d90"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/20d0a9062c031068fa39f725a32f182b709b5525"
    },
    {
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      "url": "https://git.kernel.org/stable/c/2358046ead696ca5c7c628d6c0e2c6792619a3e5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "url": "https://git.kernel.org/stable/c/5c3cfcf0b4bf43530788b08a8eaf7896ec567484"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      ],
      "url": "https://git.kernel.org/stable/c/c250262d6485ca333e9821f85b07eb383ec546b1"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      ],
      "url": "https://git.kernel.org/stable/c/c2968c812339593ac6e2bdd5cc3adabe3f05fa53"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List"
      ],
      "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-667"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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