fkie_cve-2024-58008
Vulnerability from fkie_nvd
Published
2025-02-27 03:15
Modified
2025-02-27 03:15
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: KEYS: trusted: dcp: fix improper sg use with CONFIG_VMAP_STACK=y With vmalloc stack addresses enabled (CONFIG_VMAP_STACK=y) DCP trusted keys can crash during en- and decryption of the blob encryption key via the DCP crypto driver. This is caused by improperly using sg_init_one() with vmalloc'd stack buffers (plain_key_blob). Fix this by always using kmalloc() for buffers we give to the DCP crypto driver.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3192f1c54dddb9b5820bf5e8677809949d8e9c66
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3355594de46fb1cba663f12b9644b664b8a609f4
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e8d9fab39d1f87b52932646b2f1e7877aa3fc0f4
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKEYS: trusted: dcp: fix improper sg use with CONFIG_VMAP_STACK=y\n\nWith vmalloc stack addresses enabled (CONFIG_VMAP_STACK=y) DCP trusted\nkeys can crash during en- and decryption of the blob encryption key via\nthe DCP crypto driver. This is caused by improperly using sg_init_one()\nwith vmalloc\u0027d stack buffers (plain_key_blob).\n\nFix this by always using kmalloc() for buffers we give to the DCP crypto\ndriver."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: KEYS: trusted: dcp: corrige el uso incorrecto de sg con CONFIG_VMAP_STACK=y Con las direcciones de pila vmalloc habilitadas (CONFIG_VMAP_STACK=y), las claves confiables de DCP pueden fallar durante el cifrado y descifrado de la clave de cifrado de blobs a trav\u00e9s del controlador de cifrado DCP. Esto se debe al uso incorrecto de sg_init_one() con b\u00faferes de pila vmalloc (plain_key_blob). Solucione esto utilizando siempre kmalloc() para los b\u00faferes que le damos al controlador de cifrado DCP."
    }
  ],
  "id": "CVE-2024-58008",
  "lastModified": "2025-02-27T03:15:11.780",
  "metrics": {},
  "published": "2025-02-27T03:15:11.780",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3192f1c54dddb9b5820bf5e8677809949d8e9c66"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3355594de46fb1cba663f12b9644b664b8a609f4"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e8d9fab39d1f87b52932646b2f1e7877aa3fc0f4"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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