ghsa-vq68-hhvf-c7xp
Vulnerability from github
Published
2024-05-01 06:31
Modified
2024-05-03 03:30
Details

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

clk: Get runtime PM before walking tree for clk_summary

Similar to the previous commit, we should make sure that all devices are runtime resumed before printing the clk_summary through debugfs. Failure to do so would result in a deadlock if the thread is resuming a device to print clk state and that device is also runtime resuming in another thread, e.g the screen is turning on and the display driver is starting up. We remove the calls to clk_pm_runtime_{get,put}() in this path because they're superfluous now that we know the devices are runtime resumed. This also squashes a bug where the return value of clk_pm_runtime_get() wasn't checked, leading to an RPM count underflow on error paths.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-27003"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-01T06:15:18Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nclk: Get runtime PM before walking tree for clk_summary\n\nSimilar to the previous commit, we should make sure that all devices are\nruntime resumed before printing the clk_summary through debugfs. Failure\nto do so would result in a deadlock if the thread is resuming a device\nto print clk state and that device is also runtime resuming in another\nthread, e.g the screen is turning on and the display driver is starting\nup. We remove the calls to clk_pm_runtime_{get,put}() in this path\nbecause they\u0027re superfluous now that we know the devices are runtime\nresumed. This also squashes a bug where the return value of\nclk_pm_runtime_get() wasn\u0027t checked, leading to an RPM count underflow\non error paths.",
  "id": "GHSA-vq68-hhvf-c7xp",
  "modified": "2024-05-03T03:30:47Z",
  "published": "2024-05-01T06:31:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-27003"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2c077fdfd09dffb31a890e5095c8ab205138a42e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/83ada89e4a86e2b28ea2b5113c76d6dc7560a4d0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9d1e795f754db1ac3344528b7af0b17b8146f321"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b457105309d388e4081c716cf7b81d517ff74db4"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4EZ6PJW7VOZ224TD7N4JZNU6KV32ZJ53"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DAMSOZXJEPUOXW33WZYWCVAY7Z5S7OOY"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GCBZZEC7L7KTWWAS2NLJK6SO3IZIL4WW"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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