CVE-2025-38615

Estado: ModificadaMedia (5.5)—

In the Linux kernel, the following vulnerability has been resolved:

fs/ntfs3: cancle set bad inode after removing name fails

The reproducer uses a file0 on a ntfs3 file system with a corrupted i_link. When renaming, the file0's inode is marked as a bad inode because the file name cannot be deleted.

The underlying bug is that make_bad_inode() is called on a live inode. In some cases it's "icache lookup finds a normal inode, d_splice_alias() is called to attach it to dentry, while another thread decides to call make_bad_inode() on it - that would evict it from icache, but we'd already found it there earlier". In some it's outright "we have an inode attached to dentry - that's how we got it in the first place; let's call make_bad_inode() on it just for shits and giggles".

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Puntuación base: 5.5

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.17%
Percentil entre todas las CVEs puntuadas: 6
Fecha de la puntuación: 6/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

NVD-CWE-noinfo

Referencias

JSON original (NVD)

Mostrar

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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/ntfs3: cancle set bad inode after removing name fails\n\nThe reproducer uses a file0 on a ntfs3 file system with a corrupted i_link.\nWhen renaming, the file0's inode is marked as a bad inode because the file\nname cannot be deleted.\n\nThe underlying bug is that make_bad_inode() is called on a live inode.\nIn some cases it's \"icache lookup finds a normal inode, d_splice_alias()\nis called to attach it to dentry, while another thread decides to call\nmake_bad_inode() on it - that would evict it from icache, but we'd already\nfound it there earlier\".\nIn some it's outright \"we have an inode attached to dentry - that's how we\ngot it in the first place; let's call make_bad_inode() on it just for shits\nand giggles\"."
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      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: fs/ntfs3: falla la cancelación de un inodo erróneo tras eliminar el nombre. El reproductor usa un archivo \"file0\" en un sistema de archivos ntfs3 con un i_link dañado. Al renombrar, el inodo de archivo \"file0\" se marca como erróneo porque no se puede eliminar el nombre del archivo. El error subyacente radica en que se llama a make_bad_inode() en un inodo activo. En algunos casos, la búsqueda de icache encuentra un inodo normal, se llama a d_splice_alias() para asociarlo a dentry, mientras que otro hilo decide llamar a make_bad_inode() en él; eso lo expulsaría de icache, pero ya lo habíamos encontrado allí anteriormente. En otros casos, es simplemente: \"Tenemos un inodo asociado a dentry; así es como lo obtuvimos; llamemos a make_bad_inode() en él, solo por diversión\"."
    }
  ],
  "lastModified": "2026-07-30T06:23:30.920",
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