fkie_cve-2022-50142
Vulnerability from fkie_nvd
Published
2025-06-18 11:15
Modified
2025-11-19 13:29
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: intel_th: msu: Fix vmalloced buffers After commit f5ff79fddf0e ("dma-mapping: remove CONFIG_DMA_REMAP") there's a chance of DMA buffer getting allocated via vmalloc(), which messes up the mmapping code: > RIP: msc_mmap_fault [intel_th_msu] > Call Trace: > <TASK> > __do_fault > do_fault ... Fix this by accounting for vmalloc possibility.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0ed72c6bc632cbf8d979ac60f982ff84b7bb610aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4914c50670b6a531e2cb17cd984cc565b4681312Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/566887bad7ff2297d6b3f9659c702ba075f3d62dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6ae2881c1d1fa0e33f4763b7c786f8ef05a9c828Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ac12ad3ccf6d386e64a9d6a890595a2509d24eddPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b5d924cb4c7b952eaa61622f14427723a78137a3Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "versionEndExcluding": "5.4.211",
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              "vulnerable": true
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          "negate": false,
          "operator": "OR"
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nintel_th: msu: Fix vmalloced buffers\n\nAfter commit f5ff79fddf0e (\"dma-mapping: remove CONFIG_DMA_REMAP\") there\u0027s\na chance of DMA buffer getting allocated via vmalloc(), which messes up\nthe mmapping code:\n\n\u003e RIP: msc_mmap_fault [intel_th_msu]\n\u003e Call Trace:\n\u003e  \u003cTASK\u003e\n\u003e  __do_fault\n\u003e  do_fault\n...\n\nFix this by accounting for vmalloc possibility."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: intel_th: msu: Reparar b\u00faferes vmalloced Despu\u00e9s de el commit f5ff79fddf0e (\"dma-mapping: remove CONFIG_DMA_REMAP\") existe la posibilidad de que el buffer DMA se asigne a trav\u00e9s de vmalloc(), lo que arruina el c\u00f3digo mmapping: \u0026gt; RIP: msc_mmap_fault [intel_th_msu] \u0026gt; Rastreo de llamada: \u0026gt;  \u0026gt; __do_fault \u0026gt; do_fault ... Solucione esto teniendo en cuenta la posibilidad de vmalloc."
    }
  ],
  "id": "CVE-2022-50142",
  "lastModified": "2025-11-19T13:29:01.230",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
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  "published": "2025-06-18T11:15:44.187",
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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