cve-2021-47560
Vulnerability from cvelistv5
Published
2024-05-24 15:12
Modified
2024-11-04 12:08
Severity ?
Summary
mlxsw: spectrum: Protect driver from buggy firmware
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-47560",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-05-24T19:11:25.762617Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-04T17:14:04.132Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T05:39:59.814Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/90d0736876c50ecde1a3275636a06b9ddb1cace9"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/da4d70199e5d82da664a80077508d6c18f5e76df"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/63b08b1f6834bbb0b4f7783bf63b80c8c8e9a047"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/mellanox/mlxsw/spectrum.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "90d0736876c5",
              "status": "affected",
              "version": "28b1987ef506",
              "versionType": "git"
            },
            {
              "lessThan": "da4d70199e5d",
              "status": "affected",
              "version": "28b1987ef506",
              "versionType": "git"
            },
            {
              "lessThan": "63b08b1f6834",
              "status": "affected",
              "version": "28b1987ef506",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/mellanox/mlxsw/spectrum.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.4"
            },
            {
              "lessThan": "5.4",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.83",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.16",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmlxsw: spectrum: Protect driver from buggy firmware\n\nWhen processing port up/down events generated by the device\u0027s firmware,\nthe driver protects itself from events reported for non-existent local\nports, but not the CPU port (local port 0), which exists, but lacks a\nnetdev.\n\nThis can result in a NULL pointer dereference when calling\nnetif_carrier_{on,off}().\n\nFix this by bailing early when processing an event reported for the CPU\nport. Problem was only observed when running on top of a buggy emulator."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-04T12:08:14.508Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/90d0736876c50ecde1a3275636a06b9ddb1cace9"
        },
        {
          "url": "https://git.kernel.org/stable/c/da4d70199e5d82da664a80077508d6c18f5e76df"
        },
        {
          "url": "https://git.kernel.org/stable/c/63b08b1f6834bbb0b4f7783bf63b80c8c8e9a047"
        }
      ],
      "title": "mlxsw: spectrum: Protect driver from buggy firmware",
      "x_generator": {
        "engine": "bippy-9e1c9544281a"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47560",
    "datePublished": "2024-05-24T15:12:49.369Z",
    "dateReserved": "2024-05-24T15:11:00.727Z",
    "dateUpdated": "2024-11-04T12:08:14.508Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-47560\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-24T15:15:20.613\",\"lastModified\":\"2024-05-24T18:09:20.027\",\"vulnStatus\":\"Awaiting Analysis\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmlxsw: spectrum: Protect driver from buggy firmware\\n\\nWhen processing port up/down events generated by the device\u0027s firmware,\\nthe driver protects itself from events reported for non-existent local\\nports, but not the CPU port (local port 0), which exists, but lacks a\\nnetdev.\\n\\nThis can result in a NULL pointer dereference when calling\\nnetif_carrier_{on,off}().\\n\\nFix this by bailing early when processing an event reported for the CPU\\nport. Problem was only observed when running on top of a buggy emulator.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mlxsw: espectro: protege el controlador de firmware defectuoso Al procesar eventos de activaci\u00f3n/desactivaci\u00f3n de puerto generados por el firmware del dispositivo, el controlador se protege de eventos informados para puertos locales inexistentes, pero no el puerto de la CPU (puerto local 0), que existe, pero carece de netdev. Esto puede resultar en una desreferencia del puntero NULL al llamar a netif_carrier_{on,off}(). Solucione este problema cancelando el proceso con antelaci\u00f3n al procesar un evento informado para el puerto de la CPU. El problema solo se observ\u00f3 cuando se ejecutaba sobre un emulador con errores.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/63b08b1f6834bbb0b4f7783bf63b80c8c8e9a047\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/90d0736876c50ecde1a3275636a06b9ddb1cace9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/da4d70199e5d82da664a80077508d6c18f5e76df\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading...

Loading...

Loading...
  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.