CVE-2026-46184 (GCVE-0-2026-46184)
Vulnerability from cvelistv5
Published
2026-05-28 09:36
Modified
2026-06-14 18:00
Severity ?
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 63978ab3e3e963db28093b53bb4598f2702e1ad7
Version: 63978ab3e3e963db28093b53bb4598f2702e1ad7
Version: 63978ab3e3e963db28093b53bb4598f2702e1ad7
Version: 63978ab3e3e963db28093b53bb4598f2702e1ad7
Version: 63978ab3e3e963db28093b53bb4598f2702e1ad7
Version: 63978ab3e3e963db28093b53bb4598f2702e1ad7
Version: 63978ab3e3e963db28093b53bb4598f2702e1ad7
Version: 63978ab3e3e963db28093b53bb4598f2702e1ad7
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{
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      "cpeApplicability": [
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      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-14T18:00:59.666Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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          "url": "https://git.kernel.org/stable/c/e02897c5b041c9b980055fa9a6167023d6dc5caf"
        },
        {
          "url": "https://git.kernel.org/stable/c/aae1498c59f48d03ee358df84f07a5af9885f827"
        },
        {
          "url": "https://git.kernel.org/stable/c/66d9c2ed081f299cfb201d9e9c4faf920e56e0bf"
        },
        {
          "url": "https://git.kernel.org/stable/c/6162e8212e88c39492d981b248b5e37002486c66"
        },
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          "url": "https://git.kernel.org/stable/c/593dd7e6c890d8e4ca21b3e2f796b7cb8e8da983"
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          "url": "https://git.kernel.org/stable/c/f1862dbf09080254c52175a448290c784dd7d3de"
        },
        {
          "url": "https://git.kernel.org/stable/c/d1f73f169c1014463b5060e3f60813e13ddc7b87"
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      ],
      "title": "sound: ua101: fix division by zero at probe",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46184",
    "datePublished": "2026-05-28T09:36:38.134Z",
    "dateReserved": "2026-05-13T15:03:33.103Z",
    "dateUpdated": "2026-06-14T18:00:59.666Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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