GHSA-PVPH-JWXQ-QCXW

Vulnerability from github – Published: 2026-05-28 12:30 – Updated: 2026-06-10 21:31
VLAI
Details

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

ALSA: usb-audio: Avoid potential endless loop in convert_chmap_v3()

The convert_chmap_v3() has a loop with its increment size of cs_desc->wLength, but we forgot to validate cs_desc->wLength itself, which may lead to potential endless loop by a malformed descriptor.

Add a proper size check to abort the loop for plugging the hole.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-46146"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-835"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-28T10:16:30Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Avoid potential endless loop in convert_chmap_v3()\n\nThe convert_chmap_v3() has a loop with its increment size of\ncs_desc-\u003ewLength, but we forgot to validate cs_desc-\u003ewLength itself,\nwhich may lead to potential endless loop by a malformed descriptor.\n\nAdd a proper size check to abort the loop for plugging the hole.",
  "id": "GHSA-pvph-jwxq-qcxw",
  "modified": "2026-06-10T21:31:24Z",
  "published": "2026-05-28T12:30:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46146"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/076d5d13eb9c1ad259a7f246149f6676c62285f9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/24a40df79307ca7ca0eec0889361cf6ac146d72a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/316aa0b1e3c5600eae5ab876394c1ac70e6db581"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4e0ee232ebe3df04874125d7c7f3e6c25ea5483d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6e7247d8f5fefeceb0bb9cc80a5388a636b219cd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/be09b47ed8677d76962e3240c145502e2ad9f3c8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e0e3dcf48189603f3865f1a0b799b3b42baae96d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fa5b19ce69067874b1413f3c2027563bae8c2cb3"
    }
  ],
  "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"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.