ghsa-53c5-74px-fwch
Vulnerability from github
Published
2025-05-01 15:31
Modified
2025-05-02 09:30
Details

In the Linux kernel, the following vulnerability has been resolved:

bus: mhi: host: Fix race between unprepare and queue_buf

A client driver may use mhi_unprepare_from_transfer() to quiesce incoming data during the client driver's tear down. The client driver might also be processing data at the same time, resulting in a call to mhi_queue_buf() which will invoke mhi_gen_tre(). If mhi_gen_tre() runs after mhi_unprepare_from_transfer() has torn down the channel, a panic will occur due to an invalid dereference leading to a page fault.

This occurs because mhi_gen_tre() does not verify the channel state after locking it. Fix this by having mhi_gen_tre() confirm the channel state is valid, or return error to avoid accessing deinitialized data.

[mani: added stable tag]

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{
  "affected": [],
  "aliases": [
    "CVE-2025-23151"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-01T13:15:51Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbus: mhi: host: Fix race between unprepare and queue_buf\n\nA client driver may use mhi_unprepare_from_transfer() to quiesce\nincoming data during the client driver\u0027s tear down. The client driver\nmight also be processing data at the same time, resulting in a call to\nmhi_queue_buf() which will invoke mhi_gen_tre(). If mhi_gen_tre() runs\nafter mhi_unprepare_from_transfer() has torn down the channel, a panic\nwill occur due to an invalid dereference leading to a page fault.\n\nThis occurs because mhi_gen_tre() does not verify the channel state\nafter locking it. Fix this by having mhi_gen_tre() confirm the channel\nstate is valid, or return error to avoid accessing deinitialized data.\n\n[mani: added stable tag]",
  "id": "GHSA-53c5-74px-fwch",
  "modified": "2025-05-02T09:30:32Z",
  "published": "2025-05-01T15:31:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-23151"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0686a818d77a431fc3ba2fab4b46bbb04e8c9380"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/178e5657c8fd285125cc6743a81b513bce099760"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3e7ecf181cbdde9753204ada3883ca1704d8702b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5f084993c90d9d0b4a52a349ede5120f992a7ca1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/899d0353ea69681f474b6bc9de32c663b89672da"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a77955f7704b2a00385e232cbcc1cb06b5c7a425"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ee1fce83ed56450087309b9b74ad9bcb2b010fa6"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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