FKIE_CVE-2026-23156

Vulnerability from fkie_nvd - Published: 2026-02-14 16:15 - Updated: 2026-02-18 17:52
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: efivarfs: fix error propagation in efivar_entry_get() efivar_entry_get() always returns success even if the underlying __efivar_entry_get() fails, masking errors. This may result in uninitialized heap memory being copied to userspace in the efivarfs_file_read() path. Fix it by returning the error from __efivar_entry_get().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3960f1754664661a970dc9ebbab44ff93a0b4c42
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4b22ec1685ce1fc0d862dcda3225d852fb107995
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/510a16f1c5c1690b33504052bc13fbc2772c23f8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/89b8ca709eeeabcc11ebba64806677873a2787a8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e4e15a0a4403c96d9898d8398f0640421df9cb16
Impacted products
Vendor Product Version
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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nefivarfs: fix error propagation in efivar_entry_get()\n\nefivar_entry_get() always returns success even if the underlying\n__efivar_entry_get() fails, masking errors.\n\nThis may result in uninitialized heap memory being copied to userspace\nin the efivarfs_file_read() path.\n\nFix it by returning the error from __efivar_entry_get()."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nefivarfs: correcci\u00f3n de la propagaci\u00f3n de errores en efivar_entry_get()\n\nefivar_entry_get() siempre devuelve \u00e9xito incluso si la funci\u00f3n subyacente __efivar_entry_get() falla, enmascarando errores.\n\nEsto puede resultar en que memoria de pila no inicializada sea copiada al espacio de usuario en la ruta de efivarfs_file_read().\n\nSe soluciona devolviendo el error desde __efivar_entry_get()."
    }
  ],
  "id": "CVE-2026-23156",
  "lastModified": "2026-02-18T17:52:44.520",
  "metrics": {},
  "published": "2026-02-14T16:15:55.760",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3960f1754664661a970dc9ebbab44ff93a0b4c42"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4b22ec1685ce1fc0d862dcda3225d852fb107995"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/510a16f1c5c1690b33504052bc13fbc2772c23f8"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/89b8ca709eeeabcc11ebba64806677873a2787a8"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e4e15a0a4403c96d9898d8398f0640421df9cb16"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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