{"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"}}}}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "23914B23-DA2F-4BFF-A11B-9674F8A6BD86", "versionEndExcluding": "6.6.103", "versionStartIncluding": "5.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "472C5F87-2BF3-4FAB-9B21-DA7513977363", "versionEndExcluding": "6.12.43", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "BC242347-F722-43AE-B910-BE0B22386977", "versionEndExcluding": "6.15.11", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "BD7C087D-2415-4521-B624-30003352F899", "versionEndExcluding": "6.16.2", "versionStartIncluding": "6.16", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "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."}], "id": "CVE-2025-38692", "lastModified": "2025-11-24T19:45:16.833", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-09-04T16:15:37.447", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4c3cda20c4cf1871e27868d08fda06b79bc7d568"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/868f23286c1a13162330fa6c614fe350f78e3f82"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/99f9a97dce39ad413c39b92c90393bbd6778f3fd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/aa8fe7b7b73d4c9a41bb96cb3fb3092f794ecb33"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e2066ca3ef49a30920d8536fa366b2a183a808ee"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-835"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: exfat: add cluster chain loop check for dir", "id": "2393175", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2393175"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2025-38692", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-09-04T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-38692\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-38692\nhttps://lore.kernel.org/linux-cve-announce/2025090450-CVE-2025-38692-90f5@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-09-05T14:02:37.496582+00:00", "updated": "2025-09-05T14:02:37.496638+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}