exfat: resolve memory leak from exfat_create_upcase_table()

{
  "id": "bb8b9ac87d2a65f6043497f7f1b545f2bbb7382fbf21235b1789df700dac1bd1",
  "url": "https://osv.dev/vulnerability/CVE-2024-47677",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "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",
    "evidence": "osv:CVE-2024-47677",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.10.13",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.11.2",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2024-47677",
      "aliases": [
        "CVE-2024-47677"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "a13d1a4de3b0fe3c41d818697d691c886c5585fa"
                },
                {
                  "fixed": "f9835aec49670c46ebe2973032caaa1043b3d4da"
                },
                {
                  "fixed": "331ed2c739ce656a67865f6b3ee0a478349d78cb"
                },
                {
                  "fixed": "c290fe508eee36df1640c3cb35dc8f89e073c8a8"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-47677.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.8.0"
                },
                {
                  "fixed": "6.10.13"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.11.0"
                },
                {
                  "fixed": "6.11.2"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-47677.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:25.097863499Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/331ed2c739ce656a67865f6b3ee0a478349d78cb",
        "https://git.kernel.org/stable/c/c290fe508eee36df1640c3cb35dc8f89e073c8a8",
        "https://git.kernel.org/stable/c/f9835aec49670c46ebe2973032caaa1043b3d4da",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/47xxx/CVE-2024-47677.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-47677",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/47xxx/CVE-2024-47677.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-47677",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 491307,
  "published_at": "2024-10-21T11:53:21.138+00:00"
}