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ALSA: usb-audio: stop parsing UAC2 rates at MAX_NR_RATES

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-46018

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-46018

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4fa0e81b83503900be277e6273a79651b375e288",
        "lessThan": "5436bc1b07d4656f99412dc72871d250d7d55205",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "4fa0e81b83503900be277e6273a79651b375e288",
        "lessThan": "0da05fedf5e1966b7e7d389866cb86fcf09f4b32",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "4fa0e81b83503900be277e6273a79651b375e288",
        "lessThan": "f14bd323eec4b4f0ef662520ec852e593ece1d4c",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "4fa0e81b83503900be277e6273a79651b375e288",
        "lessThan": "ab5ba9fd138758ddc50222264ff246b31e397abf",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "4fa0e81b83503900be277e6273a79651b375e288",
        "lessThan": "ba036305323814ec1f8655313b2fa6a0f7048716",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "4fa0e81b83503900be277e6273a79651b375e288",
        "lessThan": "4d7893a137eadb6163ea4298bf67d74b811d76ef",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "4fa0e81b83503900be277e6273a79651b375e288",
        "lessThan": "a0b78639ef09b2e77974a3de3b1c07f6de3c5e56",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "4fa0e81b83503900be277e6273a79651b375e288",
        "lessThan": "3c318f97dcc50b2e0556a1813bd6958678e881fd",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "44f059fb742aac78cffdab5e0d8fe0c9910c1ded",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "c25a53781f61c78bf2a2fa308bbd35b42ba346f6",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "3.0.81",
        "lessThan": "3.1",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "3.2.47",
        "lessThan": "3.3",
        "versionType": "semver"
      }
    ],
    "programFiles": [
      "sound/usb/format.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "3.3"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "3.3",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.258",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.209",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.175",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.140",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.86",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.27",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.0.4",
        "versionType": "semver",
        "lessThanOrEqual": "7.0.*"
      },
      {
        "status": "unaffected",
        "version": "7.1",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "sound/usb/format.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-46018

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#28371 · Revision 1
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Publisher date
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