CVE-2021-47054 (GCVE-0-2021-47054)

Vulnerability from cvelistv5 – Published: 2024-02-29 22:37 – Updated: 2026-05-11 13:47
VLAI
Title
bus: qcom: Put child node before return
Summary
In the Linux kernel, the following vulnerability has been resolved: bus: qcom: Put child node before return Put child node before return to fix potential reference count leak. Generally, the reference count of child is incremented and decremented automatically in the macro for_each_available_child_of_node() and should be decremented manually if the loop is broken in loop body.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-03-06 19:38 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 335a127548081322bd2b294d715418648912f20c , < a6191e91c10e50bd51db65a00e03d02b6b0cf8c4 (git)
Affected: 335a127548081322bd2b294d715418648912f20c , < 94810fc52925eb122a922df7f9966cf3f4ba7391 (git)
Affected: 335a127548081322bd2b294d715418648912f20c , < a399dd80e697a02cfb23e2fc09b87849994043d9 (git)
Affected: 335a127548081322bd2b294d715418648912f20c , < 3a76ec28824c01b57aa1f0927841d75e4f167cb8 (git)
Affected: 335a127548081322bd2b294d715418648912f20c , < 00f6abd3509b1d70d0ab0fbe65ce5685cebed8be (git)
Affected: 335a127548081322bd2b294d715418648912f20c , < 6b68c03dfc79cd95a58dfd03f91f6e82829a1b0c (git)
Affected: 335a127548081322bd2b294d715418648912f20c , < c6f8e0dc8da1cd78d640dee392071cc2326ec1b2 (git)
Affected: 335a127548081322bd2b294d715418648912f20c , < ac6ad7c2a862d682bb584a4bc904d89fa7721af8 (git)
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Linux Linux Affected: 4.9
Unaffected: 0 , < 4.9 (semver)
Unaffected: 4.9.269 , ≤ 4.9.* (semver)
Unaffected: 4.14.233 , ≤ 4.14.* (semver)
Unaffected: 4.19.191 , ≤ 4.19.* (semver)
Unaffected: 5.4.119 , ≤ 5.4.* (semver)
Unaffected: 5.10.37 , ≤ 5.10.* (semver)
Unaffected: 5.11.21 , ≤ 5.11.* (semver)
Unaffected: 5.12.4 , ≤ 5.12.* (semver)
Unaffected: 5.13 , ≤ * (original_commit_for_fix)
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                  "version": "5.13",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "4.9.269",
                      "versionStartIncluding": "4.9",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "4.14.233",
                      "versionStartIncluding": "4.9",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "4.19.191",
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                      "vulnerable": true
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                    {
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                      "versionEndExcluding": "5.4.119",
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                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.10.37",
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                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.11.21",
                      "versionStartIncluding": "4.9",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.12.4",
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                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbus: qcom: Put child node before return\n\nPut child node before return to fix potential reference count leak.\nGenerally, the reference count of child is incremented and decremented\nautomatically in the macro for_each_available_child_of_node() and should\nbe decremented manually if the loop is broken in loop body."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-05-04T07:03:15.858Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/a6191e91c10e50bd51db65a00e03d02b6b0cf8c4"
            },
            {
              "url": "https://git.kernel.org/stable/c/94810fc52925eb122a922df7f9966cf3f4ba7391"
            },
            {
              "url": "https://git.kernel.org/stable/c/a399dd80e697a02cfb23e2fc09b87849994043d9"
            },
            {
              "url": "https://git.kernel.org/stable/c/3a76ec28824c01b57aa1f0927841d75e4f167cb8"
            },
            {
              "url": "https://git.kernel.org/stable/c/00f6abd3509b1d70d0ab0fbe65ce5685cebed8be"
            },
            {
              "url": "https://git.kernel.org/stable/c/6b68c03dfc79cd95a58dfd03f91f6e82829a1b0c"
            },
            {
              "url": "https://git.kernel.org/stable/c/c6f8e0dc8da1cd78d640dee392071cc2326ec1b2"
            },
            {
              "url": "https://git.kernel.org/stable/c/ac6ad7c2a862d682bb584a4bc904d89fa7721af8"
            }
          ],
          "title": "bus: qcom: Put child node before return",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2021-47054",
        "datePublished": "2024-02-29T22:37:29.140Z",
        "dateReserved": "2024-02-29T22:33:44.293Z",
        "dateUpdated": "2025-05-04T07:03:15.858Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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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.