cve-2021-47587
Vulnerability from cvelistv5
Published
2024-06-19 14:53
Modified
2024-09-11 17:34
Severity
Summary
net: systemport: Add global locking for descriptor lifecycle
References
SourceURLTags
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/595a684fa6f23b21958379a18cfa83862c73c2e1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6e1011cd183faae8daff275c72444edcdfe0d473
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8b8e6e782456f1ce02a7ae914bbd5b1053f0b034
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8ed2f5d08d6e59f8c78b2869bfb95d0be32c094c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c675256a7f131f5ba3f331efb715e8f31ea0e392
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/de57f62f76450b934de8203711bdc4f7953c3421
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/eb4687c7442942e115420a30185f8d83faf37696
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f3fde37d3f0d429f0fcce214cb52588a9e21260e
Impacted products
VendorProduct
LinuxLinux
LinuxLinux
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T05:39:59.775Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/8ed2f5d08d6e59f8c78b2869bfb95d0be32c094c"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/de57f62f76450b934de8203711bdc4f7953c3421"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/f3fde37d3f0d429f0fcce214cb52588a9e21260e"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/595a684fa6f23b21958379a18cfa83862c73c2e1"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/c675256a7f131f5ba3f331efb715e8f31ea0e392"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/6e1011cd183faae8daff275c72444edcdfe0d473"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/eb4687c7442942e115420a30185f8d83faf37696"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/8b8e6e782456f1ce02a7ae914bbd5b1053f0b034"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-47587",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T17:12:42.935460Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-11T17:34:52.702Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/broadcom/bcmsysport.c",
            "drivers/net/ethernet/broadcom/bcmsysport.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "8ed2f5d08d6e",
              "status": "affected",
              "version": "80105befdb4b",
              "versionType": "git"
            },
            {
              "lessThan": "de57f62f7645",
              "status": "affected",
              "version": "80105befdb4b",
              "versionType": "git"
            },
            {
              "lessThan": "f3fde37d3f0d",
              "status": "affected",
              "version": "80105befdb4b",
              "versionType": "git"
            },
            {
              "lessThan": "595a684fa6f2",
              "status": "affected",
              "version": "80105befdb4b",
              "versionType": "git"
            },
            {
              "lessThan": "c675256a7f13",
              "status": "affected",
              "version": "80105befdb4b",
              "versionType": "git"
            },
            {
              "lessThan": "6e1011cd183f",
              "status": "affected",
              "version": "80105befdb4b",
              "versionType": "git"
            },
            {
              "lessThan": "eb4687c74429",
              "status": "affected",
              "version": "80105befdb4b",
              "versionType": "git"
            },
            {
              "lessThan": "8b8e6e782456",
              "status": "affected",
              "version": "80105befdb4b",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/broadcom/bcmsysport.c",
            "drivers/net/ethernet/broadcom/bcmsysport.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.16"
            },
            {
              "lessThan": "3.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.4.*",
              "status": "unaffected",
              "version": "4.4.296",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.294",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.259",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.222",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.168",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.88",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.11",
              "versionType": "custom"
            },
            {
              "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\nnet: systemport: Add global locking for descriptor lifecycle\n\nThe descriptor list is a shared resource across all of the transmit queues, and\nthe locking mechanism used today only protects concurrency across a given\ntransmit queue between the transmit and reclaiming. This creates an opportunity\nfor the SYSTEMPORT hardware to work on corrupted descriptors if we have\nmultiple producers at once which is the case when using multiple transmit\nqueues.\n\nThis was particularly noticeable when using multiple flows/transmit queues and\nit showed up in interesting ways in that UDP packets would get a correct UDP\nheader checksum being calculated over an incorrect packet length. Similarly TCP\npackets would get an equally correct checksum computed by the hardware over an\nincorrect packet length.\n\nThe SYSTEMPORT hardware maintains an internal descriptor list that it re-arranges\nwhen the driver produces a new descriptor anytime it writes to the\nWRITE_PORT_{HI,LO} registers, there is however some delay in the hardware to\nre-organize its descriptors and it is possible that concurrent TX queues\neventually break this internal allocation scheme to the point where the\nlength/status part of the descriptor gets used for an incorrect data buffer.\n\nThe fix is to impose a global serialization for all TX queues in the short\nsection where we are writing to the WRITE_PORT_{HI,LO} registers which solves\nthe corruption even with multiple concurrent TX queues being used."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-06-19T14:53:52.133Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/8ed2f5d08d6e59f8c78b2869bfb95d0be32c094c"
        },
        {
          "url": "https://git.kernel.org/stable/c/de57f62f76450b934de8203711bdc4f7953c3421"
        },
        {
          "url": "https://git.kernel.org/stable/c/f3fde37d3f0d429f0fcce214cb52588a9e21260e"
        },
        {
          "url": "https://git.kernel.org/stable/c/595a684fa6f23b21958379a18cfa83862c73c2e1"
        },
        {
          "url": "https://git.kernel.org/stable/c/c675256a7f131f5ba3f331efb715e8f31ea0e392"
        },
        {
          "url": "https://git.kernel.org/stable/c/6e1011cd183faae8daff275c72444edcdfe0d473"
        },
        {
          "url": "https://git.kernel.org/stable/c/eb4687c7442942e115420a30185f8d83faf37696"
        },
        {
          "url": "https://git.kernel.org/stable/c/8b8e6e782456f1ce02a7ae914bbd5b1053f0b034"
        }
      ],
      "title": "net: systemport: Add global locking for descriptor lifecycle",
      "x_generator": {
        "engine": "bippy-a5840b7849dd"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47587",
    "datePublished": "2024-06-19T14:53:52.133Z",
    "dateReserved": "2024-05-24T15:11:00.732Z",
    "dateUpdated": "2024-09-11T17:34:52.702Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-47587\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-06-19T15:15:53.260\",\"lastModified\":\"2024-06-20T12:43:25.663\",\"vulnStatus\":\"Awaiting Analysis\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet: systemport: Add global locking for descriptor lifecycle\\n\\nThe descriptor list is a shared resource across all of the transmit queues, and\\nthe locking mechanism used today only protects concurrency across a given\\ntransmit queue between the transmit and reclaiming. This creates an opportunity\\nfor the SYSTEMPORT hardware to work on corrupted descriptors if we have\\nmultiple producers at once which is the case when using multiple transmit\\nqueues.\\n\\nThis was particularly noticeable when using multiple flows/transmit queues and\\nit showed up in interesting ways in that UDP packets would get a correct UDP\\nheader checksum being calculated over an incorrect packet length. Similarly TCP\\npackets would get an equally correct checksum computed by the hardware over an\\nincorrect packet length.\\n\\nThe SYSTEMPORT hardware maintains an internal descriptor list that it re-arranges\\nwhen the driver produces a new descriptor anytime it writes to the\\nWRITE_PORT_{HI,LO} registers, there is however some delay in the hardware to\\nre-organize its descriptors and it is possible that concurrent TX queues\\neventually break this internal allocation scheme to the point where the\\nlength/status part of the descriptor gets used for an incorrect data buffer.\\n\\nThe fix is to impose a global serialization for all TX queues in the short\\nsection where we are writing to the WRITE_PORT_{HI,LO} registers which solves\\nthe corruption even with multiple concurrent TX queues being used.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: net: systemport: agregue bloqueo global para el ciclo de vida del descriptor. La lista de descriptores es un recurso compartido entre todas las colas de transmisi\u00f3n y el mecanismo de bloqueo que se usa hoy solo protege la concurrencia en una cola de transmisi\u00f3n determinada. entre la transmisi\u00f3n y la recuperaci\u00f3n. Esto crea una oportunidad para que el hardware de SYSTEMPORT funcione con descriptores corruptos si tenemos varios productores a la vez, como es el caso cuando utilizamos varias colas de transmisi\u00f3n. Esto fue particularmente notable cuando se usaban m\u00faltiples flujos/colas de transmisi\u00f3n y se mostr\u00f3 de manera interesante en que los paquetes UDP obtendr\u00edan una suma de verificaci\u00f3n de encabezado UDP correcta al calcularse sobre una longitud de paquete incorrecta. De manera similar, los paquetes TCP obtendr\u00edan una suma de verificaci\u00f3n igualmente correcta calculada por el hardware en una longitud de paquete incorrecta. El hardware de SYSTEMPORT mantiene una lista de descriptores internos que reorganiza cuando el controlador produce un nuevo descriptor cada vez que escribe en los registros WRITE_PORT_{HI,LO}. Sin embargo, hay cierto retraso en el hardware para reorganizar sus descriptores y es Es posible que las colas de TX simult\u00e1neas eventualmente rompan este esquema de asignaci\u00f3n interna hasta el punto en que la parte de longitud/estado del descriptor se use para un b\u00fafer de datos incorrecto. La soluci\u00f3n es imponer una serializaci\u00f3n global para todas las colas de TX en la secci\u00f3n corta donde escribimos en los registros WRITE_PORT_{HI,LO}, lo que resuelve la corrupci\u00f3n incluso cuando se utilizan varias colas de TX simult\u00e1neas.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/595a684fa6f23b21958379a18cfa83862c73c2e1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6e1011cd183faae8daff275c72444edcdfe0d473\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8b8e6e782456f1ce02a7ae914bbd5b1053f0b034\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8ed2f5d08d6e59f8c78b2869bfb95d0be32c094c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c675256a7f131f5ba3f331efb715e8f31ea0e392\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/de57f62f76450b934de8203711bdc4f7953c3421\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/eb4687c7442942e115420a30185f8d83faf37696\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f3fde37d3f0d429f0fcce214cb52588a9e21260e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.