CVE-2026-46018 (GCVE-0-2026-46018)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:56 – Updated: 2026-06-14 17:48
VLAI
Title
ALSA: usb-audio: stop parsing UAC2 rates at MAX_NR_RATES
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.
Assigner
Impacted products
Vendor Product Version
Linux Linux Affected: 4fa0e81b83503900be277e6273a79651b375e288 , < 5436bc1b07d4656f99412dc72871d250d7d55205 (git)
Affected: 4fa0e81b83503900be277e6273a79651b375e288 , < 0da05fedf5e1966b7e7d389866cb86fcf09f4b32 (git)
Affected: 4fa0e81b83503900be277e6273a79651b375e288 , < f14bd323eec4b4f0ef662520ec852e593ece1d4c (git)
Affected: 4fa0e81b83503900be277e6273a79651b375e288 , < ab5ba9fd138758ddc50222264ff246b31e397abf (git)
Affected: 4fa0e81b83503900be277e6273a79651b375e288 , < ba036305323814ec1f8655313b2fa6a0f7048716 (git)
Affected: 4fa0e81b83503900be277e6273a79651b375e288 , < 4d7893a137eadb6163ea4298bf67d74b811d76ef (git)
Affected: 4fa0e81b83503900be277e6273a79651b375e288 , < a0b78639ef09b2e77974a3de3b1c07f6de3c5e56 (git)
Affected: 4fa0e81b83503900be277e6273a79651b375e288 , < 3c318f97dcc50b2e0556a1813bd6958678e881fd (git)
Affected: 44f059fb742aac78cffdab5e0d8fe0c9910c1ded (git)
Affected: c25a53781f61c78bf2a2fa308bbd35b42ba346f6 (git)
Affected: 3.0.81 , < 3.1 (semver)
Affected: 3.2.47 , < 3.3 (semver)
Create a notification for this product.
Linux Linux Affected: 3.3
Unaffected: 0 , < 3.3 (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: 6.12.86 , ≤ 6.12.* (semver)
Unaffected: 6.18.27 , ≤ 6.18.* (semver)
Unaffected: 7.0.4 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "sound/usb/format.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "5436bc1b07d4656f99412dc72871d250d7d55205",
              "status": "affected",
              "version": "4fa0e81b83503900be277e6273a79651b375e288",
              "versionType": "git"
            },
            {
              "lessThan": "0da05fedf5e1966b7e7d389866cb86fcf09f4b32",
              "status": "affected",
              "version": "4fa0e81b83503900be277e6273a79651b375e288",
              "versionType": "git"
            },
            {
              "lessThan": "f14bd323eec4b4f0ef662520ec852e593ece1d4c",
              "status": "affected",
              "version": "4fa0e81b83503900be277e6273a79651b375e288",
              "versionType": "git"
            },
            {
              "lessThan": "ab5ba9fd138758ddc50222264ff246b31e397abf",
              "status": "affected",
              "version": "4fa0e81b83503900be277e6273a79651b375e288",
              "versionType": "git"
            },
            {
              "lessThan": "ba036305323814ec1f8655313b2fa6a0f7048716",
              "status": "affected",
              "version": "4fa0e81b83503900be277e6273a79651b375e288",
              "versionType": "git"
            },
            {
              "lessThan": "4d7893a137eadb6163ea4298bf67d74b811d76ef",
              "status": "affected",
              "version": "4fa0e81b83503900be277e6273a79651b375e288",
              "versionType": "git"
            },
            {
              "lessThan": "a0b78639ef09b2e77974a3de3b1c07f6de3c5e56",
              "status": "affected",
              "version": "4fa0e81b83503900be277e6273a79651b375e288",
              "versionType": "git"
            },
            {
              "lessThan": "3c318f97dcc50b2e0556a1813bd6958678e881fd",
              "status": "affected",
              "version": "4fa0e81b83503900be277e6273a79651b375e288",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "44f059fb742aac78cffdab5e0d8fe0c9910c1ded",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "c25a53781f61c78bf2a2fa308bbd35b42ba346f6",
              "versionType": "git"
            },
            {
              "lessThan": "3.1",
              "status": "affected",
              "version": "3.0.81",
              "versionType": "semver"
            },
            {
              "lessThan": "3.3",
              "status": "affected",
              "version": "3.2.47",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "sound/usb/format.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.3"
            },
            {
              "lessThan": "3.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.258",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.209",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.175",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.140",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.86",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.27",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.258",
                  "versionStartIncluding": "3.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.209",
                  "versionStartIncluding": "3.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.175",
                  "versionStartIncluding": "3.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.140",
                  "versionStartIncluding": "3.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.86",
                  "versionStartIncluding": "3.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.27",
                  "versionStartIncluding": "3.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.4",
                  "versionStartIncluding": "3.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "3.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "3.0.81",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "3.2.47",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "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"
        },
        {
          "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",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-46018",
      "date": "2026-06-20",
      "epss": "0.00155",
      "percentile": "0.05022"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-46018\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-05-27T14:17:20.240\",\"lastModified\":\"2026-06-16T15:23:42.600\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"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.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.0.81\",\"versionEndExcluding\":\"3.1\",\"matchCriteriaId\":\"B5537773-537D-41BA-A845-310302781C2B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.2.47\",\"versionEndExcluding\":\"5.10.258\",\"matchCriteriaId\":\"99B2F7FA-21BA-482F-B5AA-2B81439D857C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.209\",\"matchCriteriaId\":\"919C10A9-7951-4A74-BADD-C135A0A8D8B4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.175\",\"matchCriteriaId\":\"92385813-D91D-480D-83A1-F423D2CBB2BA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.140\",\"matchCriteriaId\":\"A1A92866-F406-43B5-B2D1-CFC274753E9D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.12.86\",\"matchCriteriaId\":\"55DA1C62-9991-451E-B8A8-E0004E00F789\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.13\",\"versionEndExcluding\":\"6.18.27\",\"matchCriteriaId\":\"A10AC84F-C058-47D5-85B4-E6E51A613B74\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.19\",\"versionEndExcluding\":\"7.0.4\",\"matchCriteriaId\":\"CDB78D6D-22C3-4154-B0D0-94AF1CE5C2E3\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0da05fedf5e1966b7e7d389866cb86fcf09f4b32\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/3c318f97dcc50b2e0556a1813bd6958678e881fd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/4d7893a137eadb6163ea4298bf67d74b811d76ef\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/5436bc1b07d4656f99412dc72871d250d7d55205\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a0b78639ef09b2e77974a3de3b1c07f6de3c5e56\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ab5ba9fd138758ddc50222264ff246b31e397abf\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ba036305323814ec1f8655313b2fa6a0f7048716\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f14bd323eec4b4f0ef662520ec852e593ece1d4c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.

Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…