ghsa-76pr-h99m-q4fj
Vulnerability from github
Published
2024-05-21 15:31
Modified
2025-05-12 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:

binder: make sure fd closes complete

During BC_FREE_BUFFER processing, the BINDER_TYPE_FDA object cleanup may close 1 or more fds. The close operations are completed using the task work mechanism -- which means the thread needs to return to userspace or the file object may never be dereferenced -- which can lead to hung processes.

Force the binder thread back to userspace if an fd is closed during BC_FREE_BUFFER handling.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-47360"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-252"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-21T15:15:22Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbinder: make sure fd closes complete\n\nDuring BC_FREE_BUFFER processing, the BINDER_TYPE_FDA object\ncleanup may close 1 or more fds. The close operations are\ncompleted using the task work mechanism -- which means the thread\nneeds to return to userspace or the file object may never be\ndereferenced -- which can lead to hung processes.\n\nForce the binder thread back to userspace if an fd is closed during\nBC_FREE_BUFFER handling.",
  "id": "GHSA-76pr-h99m-q4fj",
  "modified": "2025-05-12T21:30:56Z",
  "published": "2024-05-21T15:31:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47360"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5fdb55c1ac9585eb23bb2541d5819224429e103d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aa2c274c279ff365a06a4cba263f04965895166e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b95483d8d94b41fa31a84c1d86710b7907a37621"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d5b0473707fa53b03a5db0256ce62b2874bddbc7"
    }
  ],
  "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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