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CVE-2022-48973 (GCVE-0-2022-48973)

Vulnerability from cvelistv5 – Published: 2024-10-21 20:05 – Updated: 2026-05-11 18:50
VLAI
Title
gpio: amd8111: Fix PCI device reference count leak
Summary
In the Linux kernel, the following vulnerability has been resolved: gpio: amd8111: Fix PCI device reference count leak for_each_pci_dev() is implemented by pci_get_device(). The comment of pci_get_device() says that it will increase the reference count for the returned pci_dev and also decrease the reference count for the input pci_dev @from if it is not NULL. If we break for_each_pci_dev() loop with pdev not NULL, we need to call pci_dev_put() to decrease the reference count. Add the missing pci_dev_put() after the 'out' label. Since pci_dev_put() can handle NULL input parameter, there is no problem for the 'Device not found' branch. For the normal path, add pci_dev_put() in amd_gpio_exit().
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-22 13:18 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: f942a7de047d8c599cc1a9a26293c8c7400450ea , < 4749c5cc147c9860b96db1e71cc36d1de1bd3f59 (git)
Affected: f942a7de047d8c599cc1a9a26293c8c7400450ea , < 71d591ef873f9ebb86cd8d053b3caee785b2de6a (git)
Affected: f942a7de047d8c599cc1a9a26293c8c7400450ea , < b2bc053ebbba57a06fa655db5ea796de2edce445 (git)
Affected: f942a7de047d8c599cc1a9a26293c8c7400450ea , < 48bd5d3801f6b67cc144449d434abbd5043a6d37 (git)
Affected: f942a7de047d8c599cc1a9a26293c8c7400450ea , < 5ee6413d3dd972930af787b2c0c7aaeb379fa521 (git)
Affected: f942a7de047d8c599cc1a9a26293c8c7400450ea , < 4271515f189bd5fe2ec86b4089dab7cb804625d2 (git)
Affected: f942a7de047d8c599cc1a9a26293c8c7400450ea , < e364ce04d8f840478b09eee57b614de7cf1e743e (git)
Affected: f942a7de047d8c599cc1a9a26293c8c7400450ea , < 45fecdb9f658d9c82960c98240bc0770ade19aca (git)
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Linux Linux Affected: 3.6
Unaffected: 0 , < 3.6 (semver)
Unaffected: 4.9.336 , ≤ 4.9.* (semver)
Unaffected: 4.14.302 , ≤ 4.14.* (semver)
Unaffected: 4.19.269 , ≤ 4.19.* (semver)
Unaffected: 5.4.227 , ≤ 5.4.* (semver)
Unaffected: 5.10.159 , ≤ 5.10.* (semver)
Unaffected: 5.15.83 , ≤ 5.15.* (semver)
Unaffected: 6.0.13 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)
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                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.1",
                      "versionStartIncluding": "3.6",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: amd8111: Fix PCI device reference count leak\n\nfor_each_pci_dev() is implemented by pci_get_device(). The comment of\npci_get_device() says that it will increase the reference count for the\nreturned pci_dev and also decrease the reference count for the input\npci_dev @from if it is not NULL.\n\nIf we break for_each_pci_dev() loop with pdev not NULL, we need to call\npci_dev_put() to decrease the reference count. Add the missing\npci_dev_put() after the \u0027out\u0027 label. Since pci_dev_put() can handle NULL\ninput parameter, there is no problem for the \u0027Device not found\u0027 branch.\nFor the normal path, add pci_dev_put() in amd_gpio_exit()."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-11T18:50:44.469Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/4749c5cc147c9860b96db1e71cc36d1de1bd3f59"
            },
            {
              "url": "https://git.kernel.org/stable/c/71d591ef873f9ebb86cd8d053b3caee785b2de6a"
            },
            {
              "url": "https://git.kernel.org/stable/c/b2bc053ebbba57a06fa655db5ea796de2edce445"
            },
            {
              "url": "https://git.kernel.org/stable/c/48bd5d3801f6b67cc144449d434abbd5043a6d37"
            },
            {
              "url": "https://git.kernel.org/stable/c/5ee6413d3dd972930af787b2c0c7aaeb379fa521"
            },
            {
              "url": "https://git.kernel.org/stable/c/4271515f189bd5fe2ec86b4089dab7cb804625d2"
            },
            {
              "url": "https://git.kernel.org/stable/c/e364ce04d8f840478b09eee57b614de7cf1e743e"
            },
            {
              "url": "https://git.kernel.org/stable/c/45fecdb9f658d9c82960c98240bc0770ade19aca"
            }
          ],
          "title": "gpio: amd8111: Fix PCI device reference count leak",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2022-48973",
        "datePublished": "2024-10-21T20:05:53.769Z",
        "dateReserved": "2024-08-22T01:27:53.631Z",
        "dateUpdated": "2026-05-11T18:50:44.469Z",
        "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.
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  • 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.


Detection rules are retrieved from Rulezet.


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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.