ghsa-87qr-3hp3-x583
Vulnerability from github
Published
2025-02-27 18:31
Modified
2025-02-27 18:31
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details

In the Linux kernel, the following vulnerability has been resolved:

ALSA: pcm: Fix races among concurrent prealloc proc writes

We have no protection against concurrent PCM buffer preallocation changes via proc files, and it may potentially lead to UAF or some weird problem. This patch applies the PCM open_mutex to the proc write operation for avoiding the racy proc writes and the PCM stream open (and further operations).

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49288"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:01:05Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: pcm: Fix races among concurrent prealloc proc writes\n\nWe have no protection against concurrent PCM buffer preallocation\nchanges via proc files, and it may potentially lead to UAF or some\nweird problem.  This patch applies the PCM open_mutex to the proc\nwrite operation for avoiding the racy proc writes and the PCM stream\nopen (and further operations).",
  "id": "GHSA-87qr-3hp3-x583",
  "modified": "2025-02-27T18:31:08Z",
  "published": "2025-02-27T18:31:08Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49288"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/37b12c16beb6f6c1c3c678c1aacbc46525c250f7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/51fce708ab8986a9879ee5da946a2cc120f1036d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5ed8f8e3c4e59d0396b9ccf2e639711e24295bb6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/69534c48ba8ce552ce383b3dfdb271ffe51820c3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a21d2f323b5a978dedf9ff1d50f101f85e39b3f2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b560d670c87d7d40b3cf6949246fa4c7aa65a00a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e14dca613e0a6ddc2bf6e360f16936a9f865205b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e7786c445bb67a9a6e64f66ebd6b7215b153ff7d"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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