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

Vulnerability from cvelistv5 – Published: 2026-05-28 09:36 – Updated: 2026-06-14 18:00
VLAI
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
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted 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)
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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)
Create a notification for this product.
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    "redhat_vex": {
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      "current_release_date": "2026-07-02T21:32:27+00:00",
      "cve": "CVE-2026-46184",
      "id": "CVE-2026-46184",
      "initial_release_date": "2026-05-28T00:00:00+00:00",
      "product_status:known_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: sound: ua101: fix division by zero at probe",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46184.json",
      "version": "3"
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}