{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-38692",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-04-16T04:51:24.032Z",
        "datePublished": "2025-09-04T15:32:46.004Z",
        "dateUpdated": "2026-05-11T21:33:08.662Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T21:33:08.662Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nexfat: add cluster chain loop check for dir\n\nAn infinite loop may occur if the following conditions occur due to\nfile system corruption.\n\n(1) Condition for exfat_count_dir_entries() to loop infinitely.\n    - The cluster chain includes a loop.\n    - There is no UNUSED entry in the cluster chain.\n\n(2) Condition for exfat_create_upcase_table() to loop infinitely.\n    - The cluster chain of the root directory includes a loop.\n    - There are no UNUSED entry and up-case table entry in the cluster\n      chain of the root directory.\n\n(3) Condition for exfat_load_bitmap() to loop infinitely.\n    - The cluster chain of the root directory includes a loop.\n    - There are no UNUSED entry and bitmap entry in the cluster chain\n      of the root directory.\n\n(4) Condition for exfat_find_dir_entry() to loop infinitely.\n    - The cluster chain includes a loop.\n    - The unused directory entries were exhausted by some operation.\n\n(5) Condition for exfat_check_dir_empty() to loop infinitely.\n    - The cluster chain includes a loop.\n    - The unused directory entries were exhausted by some operation.\n    - All files and sub-directories under the directory are deleted.\n\nThis commit adds checks to break the above infinite loop."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/exfat/dir.c",
                        "fs/exfat/fatent.c",
                        "fs/exfat/namei.c",
                        "fs/exfat/super.c"
                    ],
                    "versions": [
                        {
                            "version": "1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003",
                            "lessThan": "868f23286c1a13162330fa6c614fe350f78e3f82",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003",
                            "lessThan": "aa8fe7b7b73d4c9a41bb96cb3fb3092f794ecb33",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003",
                            "lessThan": "e2066ca3ef49a30920d8536fa366b2a183a808ee",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003",
                            "lessThan": "4c3cda20c4cf1871e27868d08fda06b79bc7d568",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003",
                            "lessThan": "99f9a97dce39ad413c39b92c90393bbd6778f3fd",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/exfat/dir.c",
                        "fs/exfat/fatent.c",
                        "fs/exfat/namei.c",
                        "fs/exfat/super.c"
                    ],
                    "versions": [
                        {
                            "version": "5.7",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.7",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.103",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.43",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.15.11",
                            "lessThanOrEqual": "6.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.16.2",
                            "lessThanOrEqual": "6.16.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.17",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.7",
                                    "versionEndExcluding": "6.6.103"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.7",
                                    "versionEndExcluding": "6.12.43"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.7",
                                    "versionEndExcluding": "6.15.11"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.7",
                                    "versionEndExcluding": "6.16.2"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.7",
                                    "versionEndExcluding": "6.17"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/868f23286c1a13162330fa6c614fe350f78e3f82"
                },
                {
                    "url": "https://git.kernel.org/stable/c/aa8fe7b7b73d4c9a41bb96cb3fb3092f794ecb33"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e2066ca3ef49a30920d8536fa366b2a183a808ee"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4c3cda20c4cf1871e27868d08fda06b79bc7d568"
                },
                {
                    "url": "https://git.kernel.org/stable/c/99f9a97dce39ad413c39b92c90393bbd6778f3fd"
                }
            ],
            "title": "exfat: add cluster chain loop check for dir",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}