fkie_cve-2021-46932
Vulnerability from fkie_nvd
Published
2024-02-27 10:15
Modified
2024-11-21 06:34
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: Input: appletouch - initialize work before device registration Syzbot has reported warning in __flush_work(). This warning is caused by work->func == NULL, which means missing work initialization. This may happen, since input_dev->close() calls cancel_work_sync(&dev->work), but dev->work initalization happens _after_ input_register_device() call. So this patch moves dev->work initialization before registering input device
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/292d2ac61fb0d9276a0f7b7ce4f50426f2a1c99fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/975774ea7528b489930b76a77ffc4d5379b95ff2Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9f329d0d6c91142cf0ad08d23c72dd195db2633cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9f3ccdc3f6ef10084ceb3a47df0961bec6196fd0Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a02e1404e27855089d2b0a0acc4652c2ce65fe46Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d1962f263a176f493400b8f91bfbf2bfedce951ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d2cb2bf39a6d17ef4bdc0e59c1a35cf5751ad8f4Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e79ff8c68acb1eddf709d3ac84716868f2a91012Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/292d2ac61fb0d9276a0f7b7ce4f50426f2a1c99fPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/975774ea7528b489930b76a77ffc4d5379b95ff2Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/9f329d0d6c91142cf0ad08d23c72dd195db2633cPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/9f3ccdc3f6ef10084ceb3a47df0961bec6196fd0Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a02e1404e27855089d2b0a0acc4652c2ce65fe46Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/d1962f263a176f493400b8f91bfbf2bfedce951ePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/d2cb2bf39a6d17ef4bdc0e59c1a35cf5751ad8f4Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/e79ff8c68acb1eddf709d3ac84716868f2a91012Patch
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 *


To clipboard 

{
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nInput: appletouch - initialize work before device registration\n\nSyzbot has reported warning in __flush_work(). This warning is caused by\nwork-\u003efunc == NULL, which means missing work initialization.\n\nThis may happen, since input_dev-\u003eclose() calls\ncancel_work_sync(\u0026dev-\u003ework), but dev-\u003ework initalization happens _after_\ninput_register_device() call.\n\nSo this patch moves dev-\u003ework initialization before registering input\ndevice"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: Entrada: appletouch: inicializa el trabajo antes del registro del dispositivo Syzbot ha informado una advertencia en __flush_work(). Esta advertencia es causada por work-\u0026gt;func == NULL, lo que significa que falta la inicializaci\u00f3n del trabajo. Esto puede suceder, ya que input_dev-\u0026gt;close() llama a cancel_work_sync(\u0026amp;dev-\u0026gt;work), pero la inicializaci\u00f3n dev-\u0026gt;work ocurre _despu\u00e9s_ de la llamada input_register_device(). Entonces este parche mueve la inicializaci\u00f3n dev-\u0026gt;work antes de registrar el dispositivo de entrada"
    }
  ],
  "id": "CVE-2021-46932",
  "lastModified": "2024-11-21T06:34:57.780",
  "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": "2024-02-27T10:15:07.753",
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
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          "lang": "en",
          "value": "CWE-665"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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