fkie_cve-2022-49074
Vulnerability from fkie_nvd
Published
2025-02-26 07:00
Modified
2025-10-14 20:31
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0df6664531a12cdd8fc873f0cac0dcb40243d3e9Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3c07cc242baf83f0bddbbd9d7945d0bee56d8b57Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/60e1eb4811f53f5f60c788297d978515e7a2637aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6fef3e3179e6ed8fecdd004ede541674ffa7749dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7218a789abb3e033f5f3a85636ca50d9ae7b0fc9Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c7daf1b4ad809692d5c26f33c02ed8a031066548Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ff24114bb08d8b90edf2aff0a4fd0689523e6c17Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 5.18


To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: irqchip/gic-v3: Corregir sondeo de GICR_CTLR.RWP Resulta que nuestro sondeo de RWP es totalmente err\u00f3neo al comprobarlo en los redistribuidores, ya que probamos el \u00edndice de bits del *distribuidor*, mientras que es un n\u00famero de bit diferente en los RD... Uy, buu. Esto es vergonzoso. No solo porque es incorrecto, sino tambi\u00e9n porque tardaron *8 a\u00f1os* en darse cuenta del error... Simplemente arreglen la maldita cosa."
    }
  ],
  "id": "CVE-2022-49074",
  "lastModified": "2025-10-14T20:31:47.303",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-02-26T07:00:44.750",
  "references": [
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      "tags": [
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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