2024-12-08 03:06:42 +00:00

188 lines
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{
"id": "CVE-2024-50202",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2024-11-08T06:15:16.723",
"lastModified": "2024-11-19T16:12:17.660",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: propagate directory read errors from nilfs_find_entry()\n\nSyzbot reported that a task hang occurs in vcs_open() during a fuzzing\ntest for nilfs2.\n\nThe root cause of this problem is that in nilfs_find_entry(), which\nsearches for directory entries, ignores errors when loading a directory\npage/folio via nilfs_get_folio() fails.\n\nIf the filesystem images is corrupted, and the i_size of the directory\ninode is large, and the directory page/folio is successfully read but\nfails the sanity check, for example when it is zero-filled,\nnilfs_check_folio() may continue to spit out error messages in bursts.\n\nFix this issue by propagating the error to the callers when loading a\npage/folio fails in nilfs_find_entry().\n\nThe current interface of nilfs_find_entry() and its callers is outdated\nand cannot propagate error codes such as -EIO and -ENOMEM returned via\nnilfs_find_entry(), so fix it together."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nilfs2: propagar errores de lectura de directorio desde nilfs_find_entry() Syzbot inform\u00f3 que se produce un bloqueo de tarea en vcs_open() durante una prueba de fuzzing para nilfs2. La causa ra\u00edz de este problema es que en nilfs_find_entry(), que busca entradas de directorio, ignora los errores cuando falla la carga de una p\u00e1gina/folio de directorio a trav\u00e9s de nilfs_get_folio(). Si las im\u00e1genes del sistema de archivos est\u00e1n da\u00f1adas, y el i_size del inodo del directorio es grande, y la p\u00e1gina/folio del directorio se lee correctamente pero falla la comprobaci\u00f3n de cordura, por ejemplo, cuando est\u00e1 llena de ceros, nilfs_check_folio() puede seguir arrojando mensajes de error en r\u00e1fagas. Solucione este problema propagando el error a los llamadores cuando falla la carga de una p\u00e1gina/folio en nilfs_find_entry(). La interfaz actual de nilfs_find_entry() y sus llamadores est\u00e1 desactualizada y no puede propagar c\u00f3digos de error como -EIO y -ENOMEM devueltos a trav\u00e9s de nilfs_find_entry(), as\u00ed que arr\u00e9glenlo juntos."
}
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"source": "nvd@nist.gov",
"type": "Primary",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6
}
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},
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