CVE-2021-47149 (GCVE-0-2021-47149)

Vulnerability from cvelistv5 – Published: 2024-03-25 09:07 – Updated: 2026-05-11 13:48
VLAI
Title
net: fujitsu: fix potential null-ptr-deref
Summary
In the Linux kernel, the following vulnerability has been resolved: net: fujitsu: fix potential null-ptr-deref In fmvj18x_get_hwinfo(), if ioremap fails there will be NULL pointer deref. To fix this, check the return value of ioremap and return -1 to the caller in case of failure.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-04-01 19:41 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < b92170e209f7746ed72eaac98f2c2f4b9af734e6 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 6dbf1101594f7c76990b63c35b5a40205a914b6b (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < c4f1c23edbe921ab2ecd6140d700e756cd44c5f7 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 7883d3895d0fbb0ba9bff0f8665f99974b45210f (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 22049c3d40f08facd1867548716a484dad6b3251 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 71723a796ab7881f491d663c6cd94b29be5fba50 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < f14bf57a08779a5dee9936f63ada0149ea89c5e6 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 52202be1cd996cde6e8969a128dc27ee45a7cb5e (git)
guessed Create a notification for this product.
Linux Linux Affected: 2.6.12
Unaffected: 0 , < 2.6.12 (semver)
Unaffected: 4.4.271 , ≤ 4.4.* (semver)
Unaffected: 4.9.271 , ≤ 4.9.* (semver)
Unaffected: 4.14.235 , ≤ 4.14.* (semver)
Unaffected: 4.19.193 , ≤ 4.19.* (semver)
Unaffected: 5.4.124 , ≤ 5.4.* (semver)
Unaffected: 5.10.42 , ≤ 5.10.* (semver)
Unaffected: 5.12.9 , ≤ 5.12.* (semver)
Unaffected: 5.13 , ≤ * (original_commit_for_fix)
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                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "4.4.*",
                  "status": "unaffected",
                  "version": "4.4.271",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "4.9.*",
                  "status": "unaffected",
                  "version": "4.9.271",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "4.14.*",
                  "status": "unaffected",
                  "version": "4.14.235",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "4.19.*",
                  "status": "unaffected",
                  "version": "4.19.193",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.4.*",
                  "status": "unaffected",
                  "version": "5.4.124",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.10.*",
                  "status": "unaffected",
                  "version": "5.10.42",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.12.*",
                  "status": "unaffected",
                  "version": "5.12.9",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "5.13",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "4.4.271",
                      "versionStartIncluding": "2.6.12",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "4.9.271",
                      "versionStartIncluding": "2.6.12",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                      "vulnerable": true
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                    {
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                      "vulnerable": true
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                    {
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                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.10.42",
                      "versionStartIncluding": "2.6.12",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                      "vulnerable": true
                    },
                    {
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                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: fujitsu: fix potential null-ptr-deref\n\nIn fmvj18x_get_hwinfo(), if ioremap fails there will be NULL pointer\nderef. To fix this, check the return value of ioremap and return -1\nto the caller in case of failure."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-12-18T11:35:44.359Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/b92170e209f7746ed72eaac98f2c2f4b9af734e6"
            },
            {
              "url": "https://git.kernel.org/stable/c/6dbf1101594f7c76990b63c35b5a40205a914b6b"
            },
            {
              "url": "https://git.kernel.org/stable/c/c4f1c23edbe921ab2ecd6140d700e756cd44c5f7"
            },
            {
              "url": "https://git.kernel.org/stable/c/7883d3895d0fbb0ba9bff0f8665f99974b45210f"
            },
            {
              "url": "https://git.kernel.org/stable/c/22049c3d40f08facd1867548716a484dad6b3251"
            },
            {
              "url": "https://git.kernel.org/stable/c/71723a796ab7881f491d663c6cd94b29be5fba50"
            },
            {
              "url": "https://git.kernel.org/stable/c/f14bf57a08779a5dee9936f63ada0149ea89c5e6"
            },
            {
              "url": "https://git.kernel.org/stable/c/52202be1cd996cde6e8969a128dc27ee45a7cb5e"
            }
          ],
          "title": "net: fujitsu: fix potential null-ptr-deref",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2021-47149",
        "datePublished": "2024-03-25T09:07:45.189Z",
        "dateReserved": "2024-03-04T18:12:48.845Z",
        "dateUpdated": "2025-12-18T11:35:44.359Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.