cve-2021-47183
Vulnerability from cvelistv5
Published
2024-04-10 18:56
Modified
2024-11-04 12:01
Severity ?
Summary
scsi: lpfc: Fix link down processing to address NULL pointer dereference
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1854f53ccd88ad4e7568ddfafafffe71f1ceb0a6
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/28de48a7cea495ab48082d9ff4ef63f7cb4e563a
Impacted products
Vendor Product Version
Linux Linux
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T05:32:07.383Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/28de48a7cea495ab48082d9ff4ef63f7cb4e563a"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/1854f53ccd88ad4e7568ddfafafffe71f1ceb0a6"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-47183",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T15:50:17.652895Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-11T17:33:40.539Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/scsi/lpfc/lpfc_sli.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "28de48a7cea4",
              "status": "affected",
              "version": "1da177e4c3f4",
              "versionType": "git"
            },
            {
              "lessThan": "1854f53ccd88",
              "status": "affected",
              "version": "1da177e4c3f4",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/scsi/lpfc/lpfc_sli.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.5",
              "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\nscsi: lpfc: Fix link down processing to address NULL pointer dereference\n\nIf an FC link down transition while PLOGIs are outstanding to fabric well\nknown addresses, outstanding ABTS requests may result in a NULL pointer\ndereference. Driver unload requests may hang with repeated \"2878\" log\nmessages.\n\nThe Link down processing results in ABTS requests for outstanding ELS\nrequests. The Abort WQEs are sent for the ELSs before the driver had set\nthe link state to down. Thus the driver is sending the Abort with the\nexpectation that an ABTS will be sent on the wire. The Abort request is\nstalled waiting for the link to come up. In some conditions the driver may\nauto-complete the ELSs thus if the link does come up, the Abort completions\nmay reference an invalid structure.\n\nFix by ensuring that Abort set the flag to avoid link traffic if issued due\nto conditions where the link failed."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-04T12:01:00.711Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/28de48a7cea495ab48082d9ff4ef63f7cb4e563a"
        },
        {
          "url": "https://git.kernel.org/stable/c/1854f53ccd88ad4e7568ddfafafffe71f1ceb0a6"
        }
      ],
      "title": "scsi: lpfc: Fix link down processing to address NULL pointer dereference",
      "x_generator": {
        "engine": "bippy-9e1c9544281a"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47183",
    "datePublished": "2024-04-10T18:56:24.383Z",
    "dateReserved": "2024-03-25T09:12:14.112Z",
    "dateUpdated": "2024-11-04T12:01:00.711Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-47183\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-04-10T19:15:47.287\",\"lastModified\":\"2024-04-10T19:49:51.183\",\"vulnStatus\":\"Awaiting Analysis\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nscsi: lpfc: Fix link down processing to address NULL pointer dereference\\n\\nIf an FC link down transition while PLOGIs are outstanding to fabric well\\nknown addresses, outstanding ABTS requests may result in a NULL pointer\\ndereference. Driver unload requests may hang with repeated \\\"2878\\\" log\\nmessages.\\n\\nThe Link down processing results in ABTS requests for outstanding ELS\\nrequests. The Abort WQEs are sent for the ELSs before the driver had set\\nthe link state to down. Thus the driver is sending the Abort with the\\nexpectation that an ABTS will be sent on the wire. The Abort request is\\nstalled waiting for the link to come up. In some conditions the driver may\\nauto-complete the ELSs thus if the link does come up, the Abort completions\\nmay reference an invalid structure.\\n\\nFix by ensuring that Abort set the flag to avoid link traffic if issued due\\nto conditions where the link failed.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1854f53ccd88ad4e7568ddfafafffe71f1ceb0a6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/28de48a7cea495ab48082d9ff4ef63f7cb4e563a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • 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.