Vulnerability-Lookup

GHSA-42XG-W685-8874

Vulnerability from github – Published: 2026-05-28 12:30 – Updated: 2026-06-11 03:30

Details

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

sound: ua101: fix division by zero at probe

Add a missing sanity check for bNrChannels in detect_usb_format() to prevent a division by zero in playback_urb_complete() and capture_urb_complete().

USB core does not validate class-specific descriptor fields such as bNrChannels, so drivers must verify them before use. If a device provides bNrChannels = 0, frame_bytes becomes zero and is later used as a divisor in the URB completion handlers, leading to a kernel crash.

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-46184"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-369"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-28T10:16:34Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsound: ua101: fix division by zero at probe\n\nAdd a missing sanity check for bNrChannels in detect_usb_format()\nto prevent a division by zero in playback_urb_complete() and\ncapture_urb_complete().\n\nUSB core does not validate class-specific descriptor fields such\nas bNrChannels, so drivers must verify them before use. If a\ndevice provides bNrChannels = 0, frame_bytes becomes zero and is\nlater used as a divisor in the URB completion handlers, leading\nto a kernel crash.",
  "id": "GHSA-42xg-w685-8874",
  "modified": "2026-06-11T03:30:23Z",
  "published": "2026-05-28T12:30:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46184"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0ff2b713f406e9ecadb406014d74e7a020ac12b1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/593dd7e6c890d8e4ca21b3e2f796b7cb8e8da983"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6162e8212e88c39492d981b248b5e37002486c66"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/66d9c2ed081f299cfb201d9e9c4faf920e56e0bf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aae1498c59f48d03ee358df84f07a5af9885f827"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d1f73f169c1014463b5060e3f60813e13ddc7b87"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e02897c5b041c9b980055fa9a6167023d6dc5caf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f1862dbf09080254c52175a448290c784dd7d3de"
    }
  ],
  "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"
    }
  ]
}

CVE-2026-46184 (GCVE-0-2026-46184)

Vulnerability from cvelistv5 – Published: 2026-05-28 09:36 – Updated: 2026-06-14 18:00

Title

sound: ua101: fix division by zero at probe

Summary

In the Linux kernel, the following vulnerability has been resolved: sound: ua101: fix division by zero at probe Add a missing sanity check for bNrChannels in detect_usb_format() to prevent a division by zero in playback_urb_complete() and capture_urb_complete(). USB core does not validate class-specific descriptor fields such as bNrChannels, so drivers must verify them before use. If a device provides bNrChannels = 0, frame_bytes becomes zero and is later used as a divisor in the URB completion handlers, leading to a kernel crash.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/e02897c5b041c9b98…
https://git.kernel.org/stable/c/aae1498c59f48d03e…
https://git.kernel.org/stable/c/66d9c2ed081f299cf…
https://git.kernel.org/stable/c/6162e8212e88c3949…
https://git.kernel.org/stable/c/593dd7e6c890d8e4c…
https://git.kernel.org/stable/c/0ff2b713f406e9eca…
https://git.kernel.org/stable/c/f1862dbf09080254c…
https://git.kernel.org/stable/c/d1f73f169c1014463…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 63978ab3e3e963db28093b53bb4598f2702e1ad7 , < e02897c5b041c9b980055fa9a6167023d6dc5caf (git) Affected: 63978ab3e3e963db28093b53bb4598f2702e1ad7 , < aae1498c59f48d03ee358df84f07a5af9885f827 (git) Affected: 63978ab3e3e963db28093b53bb4598f2702e1ad7 , < 66d9c2ed081f299cfb201d9e9c4faf920e56e0bf (git) Affected: 63978ab3e3e963db28093b53bb4598f2702e1ad7 , < 6162e8212e88c39492d981b248b5e37002486c66 (git) Affected: 63978ab3e3e963db28093b53bb4598f2702e1ad7 , < 593dd7e6c890d8e4ca21b3e2f796b7cb8e8da983 (git) Affected: 63978ab3e3e963db28093b53bb4598f2702e1ad7 , < 0ff2b713f406e9ecadb406014d74e7a020ac12b1 (git) Affected: 63978ab3e3e963db28093b53bb4598f2702e1ad7 , < f1862dbf09080254c52175a448290c784dd7d3de (git) Affected: 63978ab3e3e963db28093b53bb4598f2702e1ad7 , < d1f73f169c1014463b5060e3f60813e13ddc7b87 (git)
Linux	Linux	Affected: 2.6.34 Unaffected: 0 , < 2.6.34 (semver) Unaffected: 5.10.258 , ≤ 5.10.* (semver) Unaffected: 5.15.209 , ≤ 5.15.* (semver) Unaffected: 6.1.175 , ≤ 6.1.* (semver) Unaffected: 6.6.140 , ≤ 6.6.* (semver) Unaffected: 6.12.88 , ≤ 6.12.* (semver) Unaffected: 6.18.30 , ≤ 6.18.* (semver) Unaffected: 7.0.7 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

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}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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