FKIE_CVE-2025-68767

Vulnerability from fkie_nvd - Published: 2026-01-13 16:15 - Updated: 2026-04-15 00:35
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: hfsplus: Verify inode mode when loading from disk syzbot is reporting that S_IFMT bits of inode->i_mode can become bogus when the S_IFMT bits of the 16bits "mode" field loaded from disk are corrupted. According to [1], the permissions field was treated as reserved in Mac OS 8 and 9. According to [2], the reserved field was explicitly initialized with 0, and that field must remain 0 as long as reserved. Therefore, when the "mode" field is not 0 (i.e. no longer reserved), the file must be S_IFDIR if dir == 1, and the file must be one of S_IFREG/S_IFLNK/S_IFCHR/ S_IFBLK/S_IFIFO/S_IFSOCK if dir == 0.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/001f44982587ad462b3002ee40c75e8df67d597d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/005d4b0d33f6b4a23d382b7930f7a96b95b01f39
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/05ec9af3cc430683c97f76027e1c55ac6fd25c59
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6f768724aabd5b321c5b8f15acdca11e4781cf32
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/91f114bffa36ce56d0e1f60a0a44fc09baaefc79
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d92333c7a35856e419500e7eed72dac1afa404a5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/edfb2e602b5ba5ca6bf31cbac20b366efb72b156
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhfsplus: Verify inode mode when loading from disk\n\nsyzbot is reporting that S_IFMT bits of inode-\u003ei_mode can become bogus when\nthe S_IFMT bits of the 16bits \"mode\" field loaded from disk are corrupted.\n\nAccording to [1], the permissions field was treated as reserved in Mac OS\n8 and 9. According to [2], the reserved field was explicitly initialized\nwith 0, and that field must remain 0 as long as reserved. Therefore, when\nthe \"mode\" field is not 0 (i.e. no longer reserved), the file must be\nS_IFDIR if dir == 1, and the file must be one of S_IFREG/S_IFLNK/S_IFCHR/\nS_IFBLK/S_IFIFO/S_IFSOCK if dir == 0."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nhfsplus: Verificar el modo del inodo al cargar desde el disco\n\nsyzbot est\u00e1 informando que los bits S_IFMT de inode-\u0026gt;i_mode pueden volverse inv\u00e1lidos cuando los bits S_IFMT del campo \u0027mode\u0027 de 16 bits cargado desde el disco est\u00e1n corruptos.\n\nSeg\u00fan [1], el campo de permisos fue tratado como reservado en Mac OS 8 y 9. Seg\u00fan [2], el campo reservado fue inicializado expl\u00edcitamente con 0, y ese campo debe permanecer en 0 mientras est\u00e9 reservado. Por lo tanto, cuando el campo \u0027mode\u0027 no es 0 (es decir, ya no est\u00e1 reservado), el archivo debe ser S_IFDIR si dir == 1, y el archivo debe ser uno de S_IFREG/S_IFLNK/S_IFCHR/S_IFBLK/S_IFIFO/S_IFSOCK si dir == 0."
    }
  ],
  "id": "CVE-2025-68767",
  "lastModified": "2026-04-15T00:35:42.020",
  "metrics": {},
  "published": "2026-01-13T16:15:56.120",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/001f44982587ad462b3002ee40c75e8df67d597d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/005d4b0d33f6b4a23d382b7930f7a96b95b01f39"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/05ec9af3cc430683c97f76027e1c55ac6fd25c59"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6f768724aabd5b321c5b8f15acdca11e4781cf32"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/91f114bffa36ce56d0e1f60a0a44fc09baaefc79"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d92333c7a35856e419500e7eed72dac1afa404a5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/edfb2e602b5ba5ca6bf31cbac20b366efb72b156"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}


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