ghsa-x6c5-wqx3-9555
Vulnerability from github
Published
2025-06-18 12:30
Modified
2025-06-18 12:30
Details

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: __do_fault do_fault ...

Fix this by accounting for vmalloc possibility.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50142"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-18T11:15:44Z",
    "severity": null
  },
  "details": "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.",
  "id": "GHSA-x6c5-wqx3-9555",
  "modified": "2025-06-18T12:30:50Z",
  "published": "2025-06-18T12:30:50Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50142"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0ed72c6bc632cbf8d979ac60f982ff84b7bb610a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4914c50670b6a531e2cb17cd984cc565b4681312"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/566887bad7ff2297d6b3f9659c702ba075f3d62d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6ae2881c1d1fa0e33f4763b7c786f8ef05a9c828"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ac12ad3ccf6d386e64a9d6a890595a2509d24edd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b5d924cb4c7b952eaa61622f14427723a78137a3"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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