CVE-2026-46018 (GCVE-0-2026-46018)
Vulnerability from cvelistv5
Published
2026-05-27 12:56
Modified
2026-06-14 17:48
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: stop parsing UAC2 rates at MAX_NR_RATES parse_uac2_sample_rate_range() caps the number of enumerated rates at MAX_NR_RATES, but it only breaks out of the current rate loop. A malformed UAC2 RANGE response with additional triplets continues parsing the remaining triplets and repeatedly prints "invalid uac2 rates" while probe still holds register_mutex. Stop the whole parse once the cap is reached and return the number of rates collected so far.
Impacted products
Vendor Product Version
Linux Linux Version: 4fa0e81b83503900be277e6273a79651b375e288
Version: 4fa0e81b83503900be277e6273a79651b375e288
Version: 4fa0e81b83503900be277e6273a79651b375e288
Version: 4fa0e81b83503900be277e6273a79651b375e288
Version: 4fa0e81b83503900be277e6273a79651b375e288
Version: 4fa0e81b83503900be277e6273a79651b375e288
Version: 4fa0e81b83503900be277e6273a79651b375e288
Version: 4fa0e81b83503900be277e6273a79651b375e288
Version: 44f059fb742aac78cffdab5e0d8fe0c9910c1ded
Version: c25a53781f61c78bf2a2fa308bbd35b42ba346f6
Version: 3.0.81   
Version: 3.2.47   
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Show details on NVD website


{
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        {
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          "product": "Linux",
          "programFiles": [
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          "vendor": "Linux",
          "versions": [
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              "version": "3.3"
            },
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              "status": "unaffected",
              "version": "0",
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            },
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              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.258",
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            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.209",
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            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.175",
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              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.140",
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            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.86",
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            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.27",
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              "lessThanOrEqual": "7.0.*",
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              "version": "7.0.4",
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              "version": "7.1",
              "versionType": "original_commit_for_fix"
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      "cpeApplicability": [
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              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: stop parsing UAC2 rates at MAX_NR_RATES\n\nparse_uac2_sample_rate_range() caps the number of enumerated\nrates at MAX_NR_RATES, but it only breaks out of the current\nrate loop. A malformed UAC2 RANGE response with additional\ntriplets continues parsing the remaining triplets and repeatedly\nprints \"invalid uac2 rates\" while probe still holds\nregister_mutex.\n\nStop the whole parse once the cap is reached and return the\nnumber of rates collected so far."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-14T17:48:18.248Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/5436bc1b07d4656f99412dc72871d250d7d55205"
        },
        {
          "url": "https://git.kernel.org/stable/c/0da05fedf5e1966b7e7d389866cb86fcf09f4b32"
        },
        {
          "url": "https://git.kernel.org/stable/c/f14bd323eec4b4f0ef662520ec852e593ece1d4c"
        },
        {
          "url": "https://git.kernel.org/stable/c/ab5ba9fd138758ddc50222264ff246b31e397abf"
        },
        {
          "url": "https://git.kernel.org/stable/c/ba036305323814ec1f8655313b2fa6a0f7048716"
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        {
          "url": "https://git.kernel.org/stable/c/4d7893a137eadb6163ea4298bf67d74b811d76ef"
        },
        {
          "url": "https://git.kernel.org/stable/c/a0b78639ef09b2e77974a3de3b1c07f6de3c5e56"
        },
        {
          "url": "https://git.kernel.org/stable/c/3c318f97dcc50b2e0556a1813bd6958678e881fd"
        }
      ],
      "title": "ALSA: usb-audio: stop parsing UAC2 rates at MAX_NR_RATES",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46018",
    "datePublished": "2026-05-27T12:56:19.588Z",
    "dateReserved": "2026-05-13T15:03:33.092Z",
    "dateUpdated": "2026-06-14T17:48:18.248Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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