CVE-2025-37748 (GCVE-0-2025-37748)
Vulnerability from cvelistv5
Published
2025-05-01 12:55
Modified
2025-05-26 05:20
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: iommu/mediatek: Fix NULL pointer deference in mtk_iommu_device_group Currently, mtk_iommu calls during probe iommu_device_register before the hw_list from driver data is initialized. Since iommu probing issue fix, it leads to NULL pointer dereference in mtk_iommu_device_group when hw_list is accessed with list_first_entry (not null safe). So, change the call order to ensure iommu_device_register is called after the driver data are initialized.
References
Impacted products
Vendor Product Version
Linux Linux Version: 9e3a2a64365318a743e3c0b028952d2cdbaf2b0c
Version: 9e3a2a64365318a743e3c0b028952d2cdbaf2b0c
Version: 9e3a2a64365318a743e3c0b028952d2cdbaf2b0c
Version: 9e3a2a64365318a743e3c0b028952d2cdbaf2b0c
Version: 9e3a2a64365318a743e3c0b028952d2cdbaf2b0c
Version: 9e3a2a64365318a743e3c0b028952d2cdbaf2b0c
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{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/iommu/mtk_iommu.c"
          ],
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        {
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          "product": "Linux",
          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "5.19"
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "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": [
            {
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.135",
                  "versionStartIncluding": "5.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.88",
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                  "vulnerable": true
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              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/mediatek: Fix NULL pointer deference in mtk_iommu_device_group\n\nCurrently, mtk_iommu calls during probe iommu_device_register before\nthe hw_list from driver data is initialized. Since iommu probing issue\nfix, it leads to NULL pointer dereference in mtk_iommu_device_group when\nhw_list is accessed with list_first_entry (not null safe).\n\nSo, change the call order to ensure iommu_device_register is called\nafter the driver data are initialized."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-26T05:20:02.789Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/2f75cb27bef43c8692b0f5e471e5632f6a9beb99"
        },
        {
          "url": "https://git.kernel.org/stable/c/6abd09bed43b8d83d461e0fb5b9a200a06aa8a27"
        },
        {
          "url": "https://git.kernel.org/stable/c/a0842539e8ef9386c070156103aff888e558a60c"
        },
        {
          "url": "https://git.kernel.org/stable/c/ce7d3b2f6f393fa35f0ea12861b83a1ca28b295c"
        },
        {
          "url": "https://git.kernel.org/stable/c/69f9d2d37d1207c5a73dac52a4ce1361ead707f5"
        },
        {
          "url": "https://git.kernel.org/stable/c/38e8844005e6068f336a3ad45451a562a0040ca1"
        }
      ],
      "title": "iommu/mediatek: Fix NULL pointer deference in mtk_iommu_device_group",
      "x_generator": {
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-37748",
    "datePublished": "2025-05-01T12:55:54.660Z",
    "dateReserved": "2025-04-16T04:51:23.936Z",
    "dateUpdated": "2025-05-26T05:20:02.789Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-37748\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-01T13:15:53.523\",\"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\\niommu/mediatek: Fix NULL pointer deference in mtk_iommu_device_group\\n\\nCurrently, mtk_iommu calls during probe iommu_device_register before\\nthe hw_list from driver data is initialized. Since iommu probing issue\\nfix, it leads to NULL pointer dereference in mtk_iommu_device_group when\\nhw_list is accessed with list_first_entry (not null safe).\\n\\nSo, change the call order to ensure iommu_device_register is called\\nafter the driver data are initialized.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: iommu/mediatek: Se ha corregido la deferencia de puntero nulo en mtk_iommu_device_group. Actualmente, mtk_iommu invoca durante el sondeo de iommu_device_register antes de que se inicialice hw_list de los datos del controlador. Desde la correcci\u00f3n del problema de sondeo de iommu, este provoca la desreferencia de puntero nulo en mtk_iommu_device_group cuando se accede a hw_list con list_first_entry (no es seguro para nulos). Por lo tanto, se debe modificar el orden de las llamadas para garantizar que iommu_device_register se invoque despu\u00e9s de inicializar los datos del controlador.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2f75cb27bef43c8692b0f5e471e5632f6a9beb99\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/38e8844005e6068f336a3ad45451a562a0040ca1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/69f9d2d37d1207c5a73dac52a4ce1361ead707f5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6abd09bed43b8d83d461e0fb5b9a200a06aa8a27\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a0842539e8ef9386c070156103aff888e558a60c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ce7d3b2f6f393fa35f0ea12861b83a1ca28b295c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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