FKIE_CVE-2022-48730

Vulnerability from fkie_nvd - Published: 2024-06-20 12:15 - Updated: 2026-06-17 05:16
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Summary
In the Linux kernel, the following vulnerability has been resolved: dma-buf: heaps: Fix potential spectre v1 gadget It appears like nr could be a Spectre v1 gadget as it's supplied by a user and used as an array index. Prevent the contents of kernel memory from being leaked to userspace via speculative execution by using array_index_nospec. [sumits: added fixes and cc: stable tags]
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/24f8e12d965b24f8aea762589e0e9fe2025c005ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5d40f1bdad3dd1a177f21a90ad4353c1ed40ba3aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/92c4cfaee6872038563c5b6f2e8e613f9d84d47dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cc8f7940d9c2d45f67b3d1a2f2b7a829ca561bedPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/24f8e12d965b24f8aea762589e0e9fe2025c005ePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/5d40f1bdad3dd1a177f21a90ad4353c1ed40ba3aPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/92c4cfaee6872038563c5b6f2e8e613f9d84d47dPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/cc8f7940d9c2d45f67b3d1a2f2b7a829ca561bedPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 5.17
linux linux_kernel 5.17
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/dma-buf/dma-heap.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "5d40f1bdad3dd1a177f21a90ad4353c1ed40ba3a",
              "status": "affected",
              "version": "c02a81fba74fe3488ad6b08bfb5a1329005418f8",
              "versionType": "git"
            },
            {
              "lessThan": "24f8e12d965b24f8aea762589e0e9fe2025c005e",
              "status": "affected",
              "version": "c02a81fba74fe3488ad6b08bfb5a1329005418f8",
              "versionType": "git"
            },
            {
              "lessThan": "cc8f7940d9c2d45f67b3d1a2f2b7a829ca561bed",
              "status": "affected",
              "version": "c02a81fba74fe3488ad6b08bfb5a1329005418f8",
              "versionType": "git"
            },
            {
              "lessThan": "92c4cfaee6872038563c5b6f2e8e613f9d84d47d",
              "status": "affected",
              "version": "c02a81fba74fe3488ad6b08bfb5a1329005418f8",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/dma-buf/dma-heap.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.6"
            },
            {
              "lessThan": "5.6",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.99",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.22",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.16.*",
              "status": "unaffected",
              "version": "5.16.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "B69CC532-C65F-4966-A226-22878B182DF5",
              "versionEndExcluding": "5.10.99",
              "versionStartIncluding": "5.6",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "74528AA6-B524-4C3F-B188-1194235FE47D",
              "versionEndExcluding": "5.15.22",
              "versionStartIncluding": "5.11",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "0623892A-E3E4-44E6-8A5E-39A0B47AF782",
              "versionEndExcluding": "5.16.8",
              "versionStartIncluding": "5.16",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "7BD5F8D9-54FA-4CB0-B4F0-CB0471FDDB2D",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.17:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "E6E34B23-78B4-4516-9BD8-61B33F4AC49A",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndma-buf: heaps: Fix potential spectre v1 gadget\n\nIt appears like nr could be a Spectre v1 gadget as it\u0027s supplied by a\nuser and used as an array index. Prevent the contents\nof kernel memory from being leaked to userspace via speculative\nexecution by using array_index_nospec.\n\n [sumits: added fixes and cc: stable tags]"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: dma-buf: heaps: repara un posible gadget de Spectre v1. Parece que nr podr\u00eda ser un gadget de Spectre v1, ya que lo proporciona un usuario y se utiliza como \u00edndice de matriz. Evite que el contenido de la memoria del kernel se filtre al espacio de usuario mediante ejecuci\u00f3n especulativa utilizando array_index_nospec. [presenta: correcciones agregadas y cc: etiquetas estables]"
    }
  ],
  "id": "CVE-2022-48730",
  "lastModified": "2026-06-17T05:16:02.370",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2022-48730",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-09-10T17:11:00.522844Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-06-20T12:15:11.430",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/24f8e12d965b24f8aea762589e0e9fe2025c005e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/5d40f1bdad3dd1a177f21a90ad4353c1ed40ba3a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/92c4cfaee6872038563c5b6f2e8e613f9d84d47d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/cc8f7940d9c2d45f67b3d1a2f2b7a829ca561bed"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/24f8e12d965b24f8aea762589e0e9fe2025c005e"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/5d40f1bdad3dd1a177f21a90ad4353c1ed40ba3a"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/92c4cfaee6872038563c5b6f2e8e613f9d84d47d"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/cc8f7940d9c2d45f67b3d1a2f2b7a829ca561bed"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-203"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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