ghsa-8gv8-jqm3-r824
Vulnerability from github
Published
2024-03-01 00:30
Modified
2025-01-09 21:31
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

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

m68k: mvme147,mvme16x: Don't wipe PCC timer config bits

Don't clear the timer 1 configuration bits when clearing the interrupt flag and counter overflow. As Michael reported, "This results in no timer interrupts being delivered after the first. Initialization then hangs in calibrate_delay as the jiffies counter is not updated."

On mvme16x, enable the timer after requesting the irq, consistent with mvme147.

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2021-47016"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-02-29T23:15:07Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nm68k: mvme147,mvme16x: Don\u0027t wipe PCC timer config bits\n\nDon\u0027t clear the timer 1 configuration bits when clearing the interrupt flag\nand counter overflow. As Michael reported, \"This results in no timer\ninterrupts being delivered after the first. Initialization then hangs\nin calibrate_delay as the jiffies counter is not updated.\"\n\nOn mvme16x, enable the timer after requesting the irq, consistent with\nmvme147.",
  "id": "GHSA-8gv8-jqm3-r824",
  "modified": "2025-01-09T21:31:26Z",
  "published": "2024-03-01T00:30:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47016"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1dfb26df15fc7036a74221d43de7427f74293dae"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/43262178c043032e7c42d00de44c818ba05f9967"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5d34225169346cab5145978d153b9ce90e9ace21"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/73fdeb612d25b5e105c219e05434285a45d23576"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f6a90818a32058fca62cda3a2027a6a2364e1878"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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