CVE-2024-47677 (GCVE-0-2024-47677)

Vulnerability from cvelistv5 – Published: 2024-10-21 11:53 – Updated: 2026-05-11 20:38
VLAI
Title
exfat: resolve memory leak from exfat_create_upcase_table()
Summary
In the Linux kernel, the following vulnerability has been resolved: exfat: resolve memory leak from exfat_create_upcase_table() If exfat_load_upcase_table reaches end and returns -EINVAL, allocated memory doesn't get freed and while exfat_load_default_upcase_table allocates more memory, leading to a memory leak. Here's link to syzkaller crash report illustrating this issue: https://syzkaller.appspot.com/text?tag=CrashReport&x=1406c201980000
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-21 13:07 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: a13d1a4de3b0fe3c41d818697d691c886c5585fa , < f9835aec49670c46ebe2973032caaa1043b3d4da (git)
Affected: a13d1a4de3b0fe3c41d818697d691c886c5585fa , < 331ed2c739ce656a67865f6b3ee0a478349d78cb (git)
Affected: a13d1a4de3b0fe3c41d818697d691c886c5585fa , < c290fe508eee36df1640c3cb35dc8f89e073c8a8 (git)
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Linux Linux Affected: 6.8
Unaffected: 0 , < 6.8 (semver)
Unaffected: 6.10.13 , ≤ 6.10.* (semver)
Unaffected: 6.11.2 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.12",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.10.13",
                      "versionStartIncluding": "6.8",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.11.2",
                      "versionStartIncluding": "6.8",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.12",
                      "versionStartIncluding": "6.8",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nexfat: resolve memory leak from exfat_create_upcase_table()\n\nIf exfat_load_upcase_table reaches end and returns -EINVAL,\nallocated memory doesn\u0027t get freed and while\nexfat_load_default_upcase_table allocates more memory, leading to a\nmemory leak.\n\nHere\u0027s link to syzkaller crash report illustrating this issue:\nhttps://syzkaller.appspot.com/text?tag=CrashReport\u0026x=1406c201980000"
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-05-04T09:37:02.575Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/f9835aec49670c46ebe2973032caaa1043b3d4da"
            },
            {
              "url": "https://git.kernel.org/stable/c/331ed2c739ce656a67865f6b3ee0a478349d78cb"
            },
            {
              "url": "https://git.kernel.org/stable/c/c290fe508eee36df1640c3cb35dc8f89e073c8a8"
            }
          ],
          "title": "exfat: resolve memory leak from exfat_create_upcase_table()",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-47677",
        "datePublished": "2024-10-21T11:53:21.138Z",
        "dateReserved": "2024-09-30T16:00:12.938Z",
        "dateUpdated": "2025-05-04T09:37:02.575Z",
        "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

Author Source Type Date Other

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.


Detection rules are retrieved from Rulezet.


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.