CVE-2025-38692

{"id": "CVE-2025-38692", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003", "lessThan": "1715f0996f7baf817c73613aeda500c4f73a6bd6", "versionType": "git"}, {"status": "affected", "version": "1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003", "lessThan": "868f23286c1a13162330fa6c614fe350f78e3f82", "versionType": "git"}, {"status": "affected", "version": "1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003", "lessThan": "aa8fe7b7b73d4c9a41bb96cb3fb3092f794ecb33", "versionType": "git"}, {"status": "affected", "version": "1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003", "lessThan": "e2066ca3ef49a30920d8536fa366b2a183a808ee", "versionType": "git"}, {"status": "affected", "version": "1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003", "lessThan": "4c3cda20c4cf1871e27868d08fda06b79bc7d568", "versionType": "git"}, {"status": "affected", "version": "1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003", "lessThan": "99f9a97dce39ad413c39b92c90393bbd6778f3fd", "versionType": "git"}], "programFiles": ["fs/exfat/dir.c", "fs/exfat/fatent.c", "fs/exfat/namei.c", "fs/exfat/super.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.7"}, {"status": "unaffected", "version": "0", "lessThan": "5.7", "versionType": "semver"}, {"status": "unaffected", "version": "6.1.191", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.103", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.43", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.15.11", "versionType": "semver", "lessThanOrEqual": "6.15.*"}, {"status": "unaffected", "version": "6.16.2", "versionType": "semver", "lessThanOrEqual": "6.16.*"}, {"status": "unaffected", "version": "6.17", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["fs/exfat/dir.c", "fs/exfat/fatent.c", "fs/exfat/namei.c", "fs/exfat/super.c"], "defaultStatus": "affected"}]}], "published": "2025-09-04T16:15:37.447", "references": [{"url": "https://git.kernel.org/stable/c/1715f0996f7baf817c73613aeda500c4f73a6bd6", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/4c3cda20c4cf1871e27868d08fda06b79bc7d568", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/868f23286c1a13162330fa6c614fe350f78e3f82", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/99f9a97dce39ad413c39b92c90393bbd6778f3fd", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/aa8fe7b7b73d4c9a41bb96cb3fb3092f794ecb33", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/e2066ca3ef49a30920d8536fa366b2a183a808ee", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-835"}]}], "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."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nexfat: a\u00f1adir comprobaci\u00f3n de bucle en cadena de cl\u00fasteres para directorio\n\nPuede ocurrir un bucle infinito si se dan las siguientes condiciones debido a la corrupci\u00f3n del sistema de archivos.\n\n(1) Condici\u00f3n para que exfat_count_dir_entries() entre en bucle infinito.\n - La cadena de cl\u00fasteres incluye un bucle.\n - No hay entrada UNUSED en la cadena de cl\u00fasteres.\n\n(2) Condici\u00f3n para que exfat_create_upcase_table() entre en bucle infinito.\n - La cadena de cl\u00fasteres del directorio ra\u00edz incluye un bucle.\n - No hay entrada UNUSED ni entrada de tabla de may\u00fasculas en la cadena de cl\u00fasteres del directorio ra\u00edz.\n\n(3) Condici\u00f3n para que exfat_load_bitmap() entre en bucle infinito.\n - La cadena de cl\u00fasteres del directorio ra\u00edz incluye un bucle.\n - No hay entrada UNUSED ni entrada de mapa de bits en la cadena de cl\u00fasteres del directorio ra\u00edz.\n\n(4) Condici\u00f3n para que exfat_find_dir_entry() entre en bucle infinito.\n - La cadena de cl\u00fasteres incluye un bucle.\n - Las entradas de directorio no utilizadas se agotaron por alguna operaci\u00f3n.\n\n(5) Condici\u00f3n para que exfat_check_dir_empty() entre en bucle infinito.\n - La cadena de cl\u00fasteres incluye un bucle.\n - Las entradas de directorio no utilizadas se agotaron por alguna operaci\u00f3n.\n - Todos los archivos y subdirectorios bajo el directorio son eliminados.\n\nEste commit a\u00f1ade comprobaciones para romper el bucle infinito anterior."}], "lastModified": "2026-10-30T13:18:07.360", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "23914B23-DA2F-4BFF-A11B-9674F8A6BD86", "versionEndExcluding": "6.6.103", "versionStartIncluding": "5.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "472C5F87-2BF3-4FAB-9B21-DA7513977363", "versionEndExcluding": "6.12.43", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BC242347-F722-43AE-B910-BE0B22386977", "versionEndExcluding": "6.15.11", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BD7C087D-2415-4521-B624-30003352F899", "versionEndExcluding": "6.16.2", "versionStartIncluding": "6.16"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}