FKIE_CVE-2021-46943

Vulnerability from fkie_nvd - Published: 2024-02-27 19:04 - Updated: 2026-06-17 04:15
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: media: staging/intel-ipu3: Fix set_fmt error handling If there in an error during a set_fmt, do not overwrite the previous sizes with the invalid config. Without this patch, v4l2-compliance ends up allocating 4GiB of RAM and causing the following OOPs [ 38.662975] ipu3-imgu 0000:00:05.0: swiotlb buffer is full (sz: 4096 bytes) [ 38.662980] DMA: Out of SW-IOMMU space for 4096 bytes at device 0000:00:05.0 [ 38.663010] general protection fault: 0000 [#1] PREEMPT SMP
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/34892ea938387d83ffcfb7775ec55f0f80767916Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6fb617e37a39db0a3eca4489431359d0bdf3b9bcPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a03fb1e8a110658215a4cefc3e2ad53279e496a6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ad91849996f9dd79741a961fd03585a683b08356Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c6b81b897f6f9445d57f8d47c4e060ec21556137Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/34892ea938387d83ffcfb7775ec55f0f80767916Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/6fb617e37a39db0a3eca4489431359d0bdf3b9bcPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a03fb1e8a110658215a4cefc3e2ad53279e496a6Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/ad91849996f9dd79741a961fd03585a683b08356Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c6b81b897f6f9445d57f8d47c4e060ec21556137Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/staging/media/ipu3/ipu3-v4l2.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "a03fb1e8a110658215a4cefc3e2ad53279e496a6",
              "status": "affected",
              "version": "6d5f26f2e045f2377b524516194657c00efbbce8",
              "versionType": "git"
            },
            {
              "lessThan": "c6b81b897f6f9445d57f8d47c4e060ec21556137",
              "status": "affected",
              "version": "6d5f26f2e045f2377b524516194657c00efbbce8",
              "versionType": "git"
            },
            {
              "lessThan": "34892ea938387d83ffcfb7775ec55f0f80767916",
              "status": "affected",
              "version": "6d5f26f2e045f2377b524516194657c00efbbce8",
              "versionType": "git"
            },
            {
              "lessThan": "6fb617e37a39db0a3eca4489431359d0bdf3b9bc",
              "status": "affected",
              "version": "6d5f26f2e045f2377b524516194657c00efbbce8",
              "versionType": "git"
            },
            {
              "lessThan": "ad91849996f9dd79741a961fd03585a683b08356",
              "status": "affected",
              "version": "6d5f26f2e045f2377b524516194657c00efbbce8",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/staging/media/ipu3/ipu3-v4l2.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.2"
            },
            {
              "lessThan": "5.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.118",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.36",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.11.*",
              "status": "unaffected",
              "version": "5.11.20",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.12.*",
              "status": "unaffected",
              "version": "5.12.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.13",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "5D320A21-D672-45FD-B78C-393AED970627",
              "versionEndExcluding": "5.4.118",
              "versionStartIncluding": "5.2.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C7148769-B830-4B8F-986F-E0C85A19FC7F",
              "versionEndExcluding": "5.10.36",
              "versionStartIncluding": "5.5.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "EFB425F0-C28C-4B44-8B4C-AD512AA832DE",
              "versionEndExcluding": "5.11.20",
              "versionStartIncluding": "5.11.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C3814FA3-8141-4313-A852-8C4212BE12AD",
              "versionEndExcluding": "5.12.3",
              "versionStartIncluding": "5.12.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: staging/intel-ipu3: Fix set_fmt error handling\n\nIf there in an error during a set_fmt, do not overwrite the previous\nsizes with the invalid config.\n\nWithout this patch, v4l2-compliance ends up allocating 4GiB of RAM and\ncausing the following OOPs\n\n[   38.662975] ipu3-imgu 0000:00:05.0: swiotlb buffer is full (sz: 4096 bytes)\n[   38.662980] DMA: Out of SW-IOMMU space for 4096 bytes at device 0000:00:05.0\n[   38.663010] general protection fault: 0000 [#1] PREEMPT SMP"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: medios: staging/intel-ipu3: Corrija el manejo de errores set_fmt Si ocurre un error durante un set_fmt, no sobrescriba los tama\u00f1os anteriores con la configuraci\u00f3n no v\u00e1lida. Sin este parche, el cumplimiento de v4l2 termina asignando 4 GiB de RAM y provocando los siguientes OOP [38.662975] ipu3-imgu 0000:00:05.0: el b\u00fafer swiotlb est\u00e1 lleno (sz: 4096 bytes) [38.662980] DMA: Fuera de SW-IOMMU espacio para 4096 bytes en el dispositivo 0000:00:05.0 [38.663010] falla de protecci\u00f3n general: 0000 [#1] PREEMPT SMP"
    }
  ],
  "id": "CVE-2021-46943",
  "lastModified": "2026-06-17T04:15:56.080",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-46943",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-02-27T19:34:55.283543Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-02-27T19:04:06.063",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/34892ea938387d83ffcfb7775ec55f0f80767916"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/6fb617e37a39db0a3eca4489431359d0bdf3b9bc"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/a03fb1e8a110658215a4cefc3e2ad53279e496a6"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/ad91849996f9dd79741a961fd03585a683b08356"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/c6b81b897f6f9445d57f8d47c4e060ec21556137"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/34892ea938387d83ffcfb7775ec55f0f80767916"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/6fb617e37a39db0a3eca4489431359d0bdf3b9bc"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/a03fb1e8a110658215a4cefc3e2ad53279e496a6"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/ad91849996f9dd79741a961fd03585a683b08356"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/c6b81b897f6f9445d57f8d47c4e060ec21556137"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-131"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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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.
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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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