ghsa-7674-fj4m-c42f
Vulnerability from github
Published
2024-02-27 12:31
Modified
2024-04-10 18:30
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:

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

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2021-46932"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-665"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-02-27T10:15:07Z",
    "severity": "MODERATE"
  },
  "details": "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",
  "id": "GHSA-7674-fj4m-c42f",
  "modified": "2024-04-10T18:30:47Z",
  "published": "2024-02-27T12:31:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-46932"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/292d2ac61fb0d9276a0f7b7ce4f50426f2a1c99f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/975774ea7528b489930b76a77ffc4d5379b95ff2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9f329d0d6c91142cf0ad08d23c72dd195db2633c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9f3ccdc3f6ef10084ceb3a47df0961bec6196fd0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a02e1404e27855089d2b0a0acc4652c2ce65fe46"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d1962f263a176f493400b8f91bfbf2bfedce951e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d2cb2bf39a6d17ef4bdc0e59c1a35cf5751ad8f4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e79ff8c68acb1eddf709d3ac84716868f2a91012"
    }
  ],
  "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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