cve-2024-39469
Vulnerability from cvelistv5
Published
2024-06-25 14:28
Modified
2024-11-05 09:31
Severity ?
EPSS score ?
Summary
nilfs2: fix nilfs_empty_dir() misjudgment and long loop on I/O errors
References
{ "containers": { "adp": [ { "providerMetadata": { "dateUpdated": "2024-08-02T04:26:15.309Z", "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE" }, "references": [ { "tags": [ "x_transferred" ], "url": "https://git.kernel.org/stable/c/2ac8a2fe22bdde9eecce2a42cf5cab79333fb428" }, { "tags": [ "x_transferred" ], "url": "https://git.kernel.org/stable/c/405b71f1251e5ae865f53bd27c45114e6c83bee3" }, { "tags": [ "x_transferred" ], "url": "https://git.kernel.org/stable/c/c77ad608df6c091fe64ecb91f41ef7cb465587f1" }, { "tags": [ "x_transferred" ], "url": "https://git.kernel.org/stable/c/11a2edb70356a2202dcb7c9c189c8356ab4752cd" }, { "tags": [ "x_transferred" ], "url": "https://git.kernel.org/stable/c/129dcd3e7d036218db3f59c82d82004b9539ed82" }, { "tags": [ "x_transferred" ], "url": "https://git.kernel.org/stable/c/d18b05eda7fa77f02114f15b02c009f28ee42346" }, { "tags": [ "x_transferred" ], "url": "https://git.kernel.org/stable/c/59f14875a96ef93f05b82ad3c980605f2cb444b5" }, { "tags": [ "x_transferred" ], "url": "https://git.kernel.org/stable/c/7373a51e7998b508af7136530f3a997b286ce81c" } ], "title": "CVE Program Container" }, { "metrics": [ { "other": { "content": { "id": "CVE-2024-39469", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "timestamp": "2024-09-10T17:07:55.313333Z", "version": "2.0.3" }, "type": "ssvc" } } ], "providerMetadata": { "dateUpdated": "2024-09-11T17:34:41.781Z", "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP" }, "title": "CISA ADP Vulnrichment" } ], "cna": { "affected": [ { "defaultStatus": "unaffected", "product": "Linux", "programFiles": [ "fs/nilfs2/dir.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "lessThan": "2ac8a2fe22bd", "status": "affected", "version": "2ba466d74ed7", "versionType": "git" }, { "lessThan": "405b71f1251e", "status": "affected", "version": "2ba466d74ed7", "versionType": "git" }, { "lessThan": "c77ad608df6c", "status": "affected", "version": "2ba466d74ed7", "versionType": "git" }, { "lessThan": "11a2edb70356", "status": "affected", "version": "2ba466d74ed7", "versionType": "git" }, { "lessThan": "129dcd3e7d03", "status": "affected", "version": "2ba466d74ed7", "versionType": "git" }, { "lessThan": "d18b05eda7fa", "status": "affected", "version": "2ba466d74ed7", "versionType": "git" }, { "lessThan": "59f14875a96e", "status": "affected", "version": "2ba466d74ed7", "versionType": "git" }, { "lessThan": "7373a51e7998", "status": "affected", "version": "2ba466d74ed7", "versionType": "git" } ] }, { "defaultStatus": "affected", "product": "Linux", "programFiles": [ "fs/nilfs2/dir.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "status": "affected", "version": "2.6.30" }, { "lessThan": "2.6.30", "status": "unaffected", "version": "0", "versionType": "semver" }, { "lessThanOrEqual": "4.19.*", "status": "unaffected", "version": "4.19.317", "versionType": "semver" }, { "lessThanOrEqual": "5.4.*", "status": "unaffected", "version": "5.4.279", "versionType": "semver" }, { "lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.221", "versionType": "semver" }, { "lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.162", "versionType": "semver" }, { "lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.95", "versionType": "semver" }, { "lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.35", "versionType": "semver" }, { "lessThanOrEqual": "6.9.*", "status": "unaffected", "version": "6.9.5", "versionType": "semver" }, { "lessThanOrEqual": "*", "status": "unaffected", "version": "6.10", "versionType": "original_commit_for_fix" } ] } ], "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: fix nilfs_empty_dir() misjudgment and long loop on I/O errors\n\nThe error handling in nilfs_empty_dir() when a directory folio/page read\nfails is incorrect, as in the old ext2 implementation, and if the\nfolio/page cannot be read or nilfs_check_folio() fails, it will falsely\ndetermine the directory as empty and corrupt the file system.\n\nIn addition, since nilfs_empty_dir() does not immediately return on a\nfailed folio/page read, but continues to loop, this can cause a long loop\nwith I/O if i_size of the directory\u0027s inode is also corrupted, causing the\nlog writer thread to wait and hang, as reported by syzbot.\n\nFix these issues by making nilfs_empty_dir() immediately return a false\nvalue (0) if it fails to get a directory folio/page." } ], "providerMetadata": { "dateUpdated": "2024-11-05T09:31:55.006Z", "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux" }, "references": [ { "url": "https://git.kernel.org/stable/c/2ac8a2fe22bdde9eecce2a42cf5cab79333fb428" }, { "url": "https://git.kernel.org/stable/c/405b71f1251e5ae865f53bd27c45114e6c83bee3" }, { "url": "https://git.kernel.org/stable/c/c77ad608df6c091fe64ecb91f41ef7cb465587f1" }, { "url": "https://git.kernel.org/stable/c/11a2edb70356a2202dcb7c9c189c8356ab4752cd" }, { "url": "https://git.kernel.org/stable/c/129dcd3e7d036218db3f59c82d82004b9539ed82" }, { "url": "https://git.kernel.org/stable/c/d18b05eda7fa77f02114f15b02c009f28ee42346" }, { "url": "https://git.kernel.org/stable/c/59f14875a96ef93f05b82ad3c980605f2cb444b5" }, { "url": "https://git.kernel.org/stable/c/7373a51e7998b508af7136530f3a997b286ce81c" } ], "title": "nilfs2: fix nilfs_empty_dir() misjudgment and long loop on I/O errors", "x_generator": { "engine": "bippy-9e1c9544281a" } } }, "cveMetadata": { "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "assignerShortName": "Linux", "cveId": "CVE-2024-39469", "datePublished": "2024-06-25T14:28:55.581Z", "dateReserved": "2024-06-25T14:23:23.745Z", "dateUpdated": "2024-11-05T09:31:55.006Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2024-39469\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-06-25T15:15:15.340\",\"lastModified\":\"2024-07-05T08:15:03.467\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnilfs2: fix nilfs_empty_dir() misjudgment and long loop on I/O errors\\n\\nThe error handling in nilfs_empty_dir() when a directory folio/page read\\nfails is incorrect, as in the old ext2 implementation, and if the\\nfolio/page cannot be read or nilfs_check_folio() fails, it will falsely\\ndetermine the directory as empty and corrupt the file system.\\n\\nIn addition, since nilfs_empty_dir() does not immediately return on a\\nfailed folio/page read, but continues to loop, this can cause a long loop\\nwith I/O if i_size of the directory\u0027s inode is also corrupted, causing the\\nlog writer thread to wait and hang, as reported by syzbot.\\n\\nFix these issues by making nilfs_empty_dir() immediately return a false\\nvalue (0) if it fails to get a directory folio/page.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nilfs2: corrige el error de c\u00e1lculo de nilfs_empty_dir() y el bucle largo en errores de E/S. El manejo de errores en nilfs_empty_dir() cuando falla la lectura de una p\u00e1gina/folio de directorio es incorrecto, como en el antiguo ext2 implementaci\u00f3n, y si la publicaci\u00f3n/p\u00e1gina no se puede leer o nilfs_check_folio() falla, determinar\u00e1 err\u00f3neamente que el directorio est\u00e1 vac\u00edo y da\u00f1ar\u00e1 el sistema de archivos. Adem\u00e1s, dado que nilfs_empty_dir() no regresa inmediatamente tras una lectura fallida de un folio/p\u00e1gina, sino que contin\u00faa en bucle, esto puede provocar un bucle largo con E/S si i_size del inodo del directorio tambi\u00e9n est\u00e1 da\u00f1ado, lo que provoca que el subproceso del escritor de registros se bloquee. espera y cuelga, seg\u00fan lo informado por syzbot. Solucione estos problemas haciendo que nilfs_empty_dir() devuelva inmediatamente un valor falso (0) si no puede obtener una p\u00e1gina/folio del directorio.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/11a2edb70356a2202dcb7c9c189c8356ab4752cd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/129dcd3e7d036218db3f59c82d82004b9539ed82\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/2ac8a2fe22bdde9eecce2a42cf5cab79333fb428\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/405b71f1251e5ae865f53bd27c45114e6c83bee3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/59f14875a96ef93f05b82ad3c980605f2cb444b5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7373a51e7998b508af7136530f3a997b286ce81c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c77ad608df6c091fe64ecb91f41ef7cb465587f1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d18b05eda7fa77f02114f15b02c009f28ee42346\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}" } }
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Sightings
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Nomenclature
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- Confirmed: The vulnerability is confirmed from an analyst perspective.
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