FKIE_CVE-2022-50130

Vulnerability from fkie_nvd - Published: 2025-06-18 11:15 - Updated: 2025-11-18 18:09
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: staging: fbtft: core: set smem_len before fb_deferred_io_init call The fbtft_framebuffer_alloc() calls fb_deferred_io_init() before initializing info->fix.smem_len. It is set to zero by the framebuffer_alloc() function. It will trigger a WARN_ON() at the start of fb_deferred_io_init() and the function will not do anything.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4178bfa3fc9de556dfe248a6eabe29280f0ffda5Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5185c319e8ea67657e0d3edd520a7276516c506aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6ae6abe240306f878557d6eadd950a2e2561f59fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/81e878887ff82a7dd42f22951391069a5d520627Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
To clipboard 

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            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: fbtft: core: set smem_len before fb_deferred_io_init call\n\nThe fbtft_framebuffer_alloc() calls fb_deferred_io_init() before\ninitializing info-\u003efix.smem_len.  It is set to zero by the\nframebuffer_alloc() function.  It will trigger a WARN_ON() at the\nstart of fb_deferred_io_init() and the function will not do anything."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: staging: fbtft: core: establecer smem_len antes de la llamada a fb_deferred_io_init. La funci\u00f3n fbtft_framebuffer_alloc() llama a fb_deferred_io_init() antes de inicializar info-\u0026gt;fix.smem_len. La funci\u00f3n framebuffer_alloc() la establece a cero. Esto activar\u00e1 un WARN_ON() al inicio de fb_deferred_io_init() y la funci\u00f3n no realizar\u00e1 ninguna acci\u00f3n."
    }
  ],
  "id": "CVE-2022-50130",
  "lastModified": "2025-11-18T18:09:48.880",
  "metrics": {
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
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        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
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  "published": "2025-06-18T11:15:42.810",
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      "source": "nvd@nist.gov",
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}


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