CVE-2025-23161 (GCVE-0-2025-23161)
Vulnerability from cvelistv5
Published
2025-05-01 12:55
Modified
2025-05-26 05:19
Severity ?
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
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/pci/controller/vmd.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
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            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/pci/controller/vmd.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.181",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.135",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.88",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.24",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.13.*",
              "status": "unaffected",
              "version": "6.13.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.14.*",
              "status": "unaffected",
              "version": "6.14.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.15",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.181",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.135",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.88",
                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "6.12.24",
                  "vulnerable": true
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.14.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "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/]"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-26T05:19:45.849Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c250262d6485ca333e9821f85b07eb383ec546b1"
        },
        {
          "url": "https://git.kernel.org/stable/c/c2968c812339593ac6e2bdd5cc3adabe3f05fa53"
        },
        {
          "url": "https://git.kernel.org/stable/c/13e5148f70e81991acbe0bab5b1b50ba699116e7"
        },
        {
          "url": "https://git.kernel.org/stable/c/5c3cfcf0b4bf43530788b08a8eaf7896ec567484"
        },
        {
          "url": "https://git.kernel.org/stable/c/2358046ead696ca5c7c628d6c0e2c6792619a3e5"
        },
        {
          "url": "https://git.kernel.org/stable/c/20d0a9062c031068fa39f725a32f182b709b5525"
        },
        {
          "url": "https://git.kernel.org/stable/c/18056a48669a040bef491e63b25896561ee14d90"
        }
      ],
      "title": "PCI: vmd: Make vmd_dev::cfg_lock a raw_spinlock_t type",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-23161",
    "datePublished": "2025-05-01T12:55:46.021Z",
    "dateReserved": "2025-01-11T14:28:41.515Z",
    "dateUpdated": "2025-05-26T05:19:45.849Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-23161\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-01T13:15:52.060\",\"lastModified\":\"2025-05-02T13:53:20.943\",\"vulnStatus\":\"Awaiting Analysis\",\"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/]\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/13e5148f70e81991acbe0bab5b1b50ba699116e7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/18056a48669a040bef491e63b25896561ee14d90\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/20d0a9062c031068fa39f725a32f182b709b5525\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/2358046ead696ca5c7c628d6c0e2c6792619a3e5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5c3cfcf0b4bf43530788b08a8eaf7896ec567484\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c250262d6485ca333e9821f85b07eb383ec546b1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c2968c812339593ac6e2bdd5cc3adabe3f05fa53\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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