ghsa-4m74-wv34-4crh
Vulnerability from github
Published
2025-10-14 21:30
Modified
2025-10-14 21:30
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:

irqchip/gic-v3: Fix GICR_CTLR.RWP polling

It turns out that our polling of RWP is totally wrong when checking for it in the redistributors, as we test the distributor bit index, whereas it is a different bit number in the RDs... Oopsie boo.

This is embarassing. Not only because it is wrong, but also because it took 8 years to notice the blunder...

Just fix the damn thing.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49074"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:00:44Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nirqchip/gic-v3: Fix GICR_CTLR.RWP polling\n\nIt turns out that our polling of RWP is totally wrong when checking\nfor it in the redistributors, as we test the *distributor* bit index,\nwhereas it is a different bit number in the RDs... Oopsie boo.\n\nThis is embarassing. Not only because it is wrong, but also because\nit took *8 years* to notice the blunder...\n\nJust fix the damn thing.",
  "id": "GHSA-4m74-wv34-4crh",
  "modified": "2025-10-14T21:30:25Z",
  "published": "2025-10-14T21:30:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49074"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0df6664531a12cdd8fc873f0cac0dcb40243d3e9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3c07cc242baf83f0bddbbd9d7945d0bee56d8b57"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/60e1eb4811f53f5f60c788297d978515e7a2637a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6fef3e3179e6ed8fecdd004ede541674ffa7749d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7218a789abb3e033f5f3a85636ca50d9ae7b0fc9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c7daf1b4ad809692d5c26f33c02ed8a031066548"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ff24114bb08d8b90edf2aff0a4fd0689523e6c17"
    }
  ],
  "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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