github - ghsa-mr69-6c22-jgq8

ghsa-mr69-6c22-jgq8

Vulnerability from github

Published

2025-09-05 18:31

Modified

2025-09-05 18:31

Details

In the Linux kernel, the following vulnerability has been resolved:

iommu/riscv: prevent NULL deref in iova_to_phys

The riscv_iommu_pte_fetch() function returns either NULL for unmapped/never-mapped iova, or a valid leaf pte pointer that requires no further validation.

riscv_iommu_iova_to_phys() failed to handle NULL returns. Prevent null pointer dereference in riscv_iommu_iova_to_phys(), and remove the pte validation.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-39699"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-05T18:15:46Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/riscv: prevent NULL deref in iova_to_phys\n\nThe riscv_iommu_pte_fetch() function returns either NULL for\nunmapped/never-mapped iova, or a valid leaf pte pointer that\nrequires no further validation.\n\nriscv_iommu_iova_to_phys() failed to handle NULL returns.\nPrevent null pointer dereference in\nriscv_iommu_iova_to_phys(), and remove the pte validation.",
  "id": "GHSA-mr69-6c22-jgq8",
  "modified": "2025-09-05T18:31:27Z",
  "published": "2025-09-05T18:31:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39699"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/220c491490255b656672bb572b18460cd9155926"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/99d4d1a070870aa08163af8ce0522992b7f35d8c"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2025-39699 (GCVE-0-2025-39699)

Vulnerability from cvelistv5

Published

2025-09-05 17:21

Modified

2025-09-29 05:57

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: iommu/riscv: prevent NULL deref in iova_to_phys The riscv_iommu_pte_fetch() function returns either NULL for unmapped/never-mapped iova, or a valid leaf pte pointer that requires no further validation. riscv_iommu_iova_to_phys() failed to handle NULL returns. Prevent null pointer dereference in riscv_iommu_iova_to_phys(), and remove the pte validation.

References

URL

Tags

	https://git.kernel.org/stable/c/220c491490255b656672bb572b18460cd9155926
	https://git.kernel.org/stable/c/99d4d1a070870aa08163af8ce0522992b7f35d8c

Impacted products

Vendor

Product

Version

Version: 488ffbf181718b9ad8c1838cb249d60973e78eda
Version: 488ffbf181718b9ad8c1838cb249d60973e78eda

Version: 6.13

Show details on NVD website

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/iommu/riscv/iommu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "220c491490255b656672bb572b18460cd9155926",
              "status": "affected",
              "version": "488ffbf181718b9ad8c1838cb249d60973e78eda",
              "versionType": "git"
            },
            {
              "lessThan": "99d4d1a070870aa08163af8ce0522992b7f35d8c",
              "status": "affected",
              "version": "488ffbf181718b9ad8c1838cb249d60973e78eda",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/iommu/riscv/iommu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.13"
            },
            {
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "6.16.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16.4",
                  "versionStartIncluding": "6.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17",
                  "versionStartIncluding": "6.13",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/riscv: prevent NULL deref in iova_to_phys\n\nThe riscv_iommu_pte_fetch() function returns either NULL for\nunmapped/never-mapped iova, or a valid leaf pte pointer that\nrequires no further validation.\n\nriscv_iommu_iova_to_phys() failed to handle NULL returns.\nPrevent null pointer dereference in\nriscv_iommu_iova_to_phys(), and remove the pte validation."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-29T05:57:40.204Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/220c491490255b656672bb572b18460cd9155926"
        },
        {
          "url": "https://git.kernel.org/stable/c/99d4d1a070870aa08163af8ce0522992b7f35d8c"
        }
      ],
      "title": "iommu/riscv: prevent NULL deref in iova_to_phys",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-39699",
    "datePublished": "2025-09-05T17:21:05.379Z",
    "dateReserved": "2025-04-16T07:20:57.115Z",
    "dateUpdated": "2025-09-29T05:57:40.204Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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