GHSA-87QR-3HP3-X583

Vulnerability from github – Published: 2025-02-27 18:31 – Updated: 2025-02-27 18:31
VLAI?
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).

Severity ?
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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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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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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