FKIE_CVE-2021-46948

Vulnerability from fkie_nvd - Published: 2024-02-27 19:04 - Updated: 2026-06-17 04:15
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: sfc: farch: fix TX queue lookup in TX event handling We're starting from a TXQ label, not a TXQ type, so efx_channel_get_tx_queue() is inappropriate (and could return NULL, leading to panics).
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/35c7a83ad1bb1d48ae249346e61b1132bcbf9052Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/83b09a1807415608b387c7bc748d329fefc5617ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bf2b941d0a6f2d3b9f5fa3c4c21bdd54f71ce253Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e531db1ea6f98c9612cb2de093a107c7eadfb96cPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/35c7a83ad1bb1d48ae249346e61b1132bcbf9052Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/83b09a1807415608b387c7bc748d329fefc5617ePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/bf2b941d0a6f2d3b9f5fa3c4c21bdd54f71ce253Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/e531db1ea6f98c9612cb2de093a107c7eadfb96cPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/sfc/farch.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "bf2b941d0a6f2d3b9f5fa3c4c21bdd54f71ce253",
              "status": "affected",
              "version": "12804793b17c0e19115a90d98f2f3df0cb79e233",
              "versionType": "git"
            },
            {
              "lessThan": "35c7a83ad1bb1d48ae249346e61b1132bcbf9052",
              "status": "affected",
              "version": "12804793b17c0e19115a90d98f2f3df0cb79e233",
              "versionType": "git"
            },
            {
              "lessThan": "e531db1ea6f98c9612cb2de093a107c7eadfb96c",
              "status": "affected",
              "version": "12804793b17c0e19115a90d98f2f3df0cb79e233",
              "versionType": "git"
            },
            {
              "lessThan": "83b09a1807415608b387c7bc748d329fefc5617e",
              "status": "affected",
              "version": "12804793b17c0e19115a90d98f2f3df0cb79e233",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/sfc/farch.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.10"
            },
            {
              "lessThan": "5.10",
              "status": "unaffected",
              "version": "0",
              "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": "4E778606-3A80-42DD-996C-5570B1192986",
              "versionEndExcluding": "5.10.36",
              "versionStartIncluding": "5.10.0",
              "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\nsfc: farch: fix TX queue lookup in TX event handling\n\nWe\u0027re starting from a TXQ label, not a TXQ type, so\n efx_channel_get_tx_queue() is inappropriate (and could return NULL,\n leading to panics)."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: sfc: farch: corrige la b\u00fasqueda de cola TX en el manejo de eventos TX Estamos comenzando desde una etiqueta TXQ, no un tipo TXQ, por lo que efx_channel_get_tx_queue() es inapropiado (y podr\u00eda devolver NULL, provocando p\u00e1nico)."
    }
  ],
  "id": "CVE-2021-46948",
  "lastModified": "2026-06-17T04:15:56.870",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "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-2021-46948",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-03-11T16:39:46.469007Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-02-27T19:04:06.330",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/35c7a83ad1bb1d48ae249346e61b1132bcbf9052"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/83b09a1807415608b387c7bc748d329fefc5617e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/bf2b941d0a6f2d3b9f5fa3c4c21bdd54f71ce253"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/e531db1ea6f98c9612cb2de093a107c7eadfb96c"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/35c7a83ad1bb1d48ae249346e61b1132bcbf9052"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/83b09a1807415608b387c7bc748d329fefc5617e"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/bf2b941d0a6f2d3b9f5fa3c4c21bdd54f71ce253"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/e531db1ea6f98c9612cb2de093a107c7eadfb96c"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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