November 13, 2026 Follow Egret
CVE-2024-53150 · CVE record: PUBLISHED

ALSA: usb-audio: Fix out of bounds reads when finding clock sources

Linux Linux

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Fix out of bounds reads when finding clock sources The current USB-audio driver code doesn't check bLength of each descriptor at traversing for clock descriptors. That is, when a device provides a bogus descriptor with a shorter bLength, the driver might hit out-of-bounds reads. For addressing it, this patch adds sanity checks to the validator functions for the clock descriptor traversal. When the descriptor length is shorter than expected, it's skipped in the loop. For the clock source and clock multiplier descriptors, we can just check bLength against the sizeof() of each descriptor type. OTOH, the clock selector descriptor of UAC2 and UAC3 has an array of bNrInPins elements and two more fields at its tail, hence those have to be checked in addition to the sizeof() check.

Exploitation evidence

Known exploited · CISA KEV listed

Added 2025-04-09. Ransomware campaign use: Unknown.

CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

CISA due date: 2025-04-30. This is the catalog’s deadline, not an assessment of your organization’s exposure.

KEV checked 13 Nov 2026, 00:20 Jerusalem · Original catalog ↗

Reported products and versions

Linux / Linux

Default status: unaffected

  • affected: b8e4f1fdfa422398c2d6c47bfb7d1feb3046d70a to < a632bdcb359fd8145e86486ff8612da98e239acd (git)
  • affected: b8e4f1fdfa422398c2d6c47bfb7d1feb3046d70a to < 45a92cbc88e4013bfed7fd2ccab3ade45f8e896b (git)
  • affected: b8e4f1fdfa422398c2d6c47bfb7d1feb3046d70a to < ab011f7439d9bbfd34fd3b9cef4b2d6d952c9bb9 (git)
  • affected: b8e4f1fdfa422398c2d6c47bfb7d1feb3046d70a to < da13ade87a12dd58829278bc816a61bea06a56a9 (git)
  • affected: b8e4f1fdfa422398c2d6c47bfb7d1feb3046d70a to < 74cb86e1006c5437b1d90084d22018da30fddc77 (git)
  • affected: b8e4f1fdfa422398c2d6c47bfb7d1feb3046d70a to < ea0fa76f61cf8e932d1d26e6193513230816e11d (git)
  • affected: b8e4f1fdfa422398c2d6c47bfb7d1feb3046d70a to < 096bb5b43edf755bc4477e64004fa3a20539ec2f (git)
  • affected: b8e4f1fdfa422398c2d6c47bfb7d1feb3046d70a to < a3dd4d63eeb452cfb064a13862fb376ab108f6a6 (git)
  • affected: 9feeaa50e5b4b0b71259d918a36ecf9059e60796 (git)
  • affected: 3b17a13b687ae99939dc94a4ae01fbc34f68decc (git)
  • affected: 4.19.84 to < 4.20 (semver)
  • affected: 5.3.11 to < 5.4 (semver)

Linux / Linux

Default status: affected

  • affected: 5.4
  • unaffected: 0 to < 5.4 (semver)
  • unaffected: 5.4.287 to ≤ 5.4.* (semver)
  • unaffected: 5.10.231 to ≤ 5.10.* (semver)
  • unaffected: 5.15.174 to ≤ 5.15.* (semver)
  • unaffected: 6.1.120 to ≤ 6.1.* (semver)
  • unaffected: 6.6.64 to ≤ 6.6.* (semver)
  • unaffected: 6.11.11 to ≤ 6.11.* (semver)
  • unaffected: 6.12.2 to ≤ 6.12.* (semver)
  • unaffected: 6.13 to ≤ * (original_commit_for_fix)

Fixes and workarounds

No explicit solution text in the downloaded CVE record. Consult the vendor advisory; unaffected version ranges are shown above as reported, not inferred as a patch recommendation.

Sources and related reporting

CVE Program record ↗ · Download tracked evidence as JSON

Observed change timeline

History begins when Egret first downloads each source. It is not the complete upstream CVE history.

12 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-12",
  "epss": 0.01354,
  "percentile": 0.71991
}
10 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-10",
  "epss": 0.01354,
  "percentile": 0.71821
}
09 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-09",
  "epss": 0.01354,
  "percentile": 0.71789
}
08 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-08",
  "epss": 0.01354,
  "percentile": 0.71775
}
07 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-07",
  "epss": 0.01354,
  "percentile": 0.71754
}
06 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-06",
  "epss": 0.01354,
  "percentile": 0.7171
}
06 Nov 2026, 06:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-05",
  "epss": 0.01354,
  "percentile": 0.71687
}
04 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-04",
  "epss": 0.01354,
  "percentile": 0.71667
}
04 Nov 2026, 00:20 Jerusalem · CVE Program record changed

Stored CNA snapshot at this observation.

{
  "containers": {
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              "attackComplexity": "LOW",
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              "baseScore": 7.1,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
              "version": "3.1"
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          {
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              "content": {
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            "descriptions": [
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                "cweId": "CWE-125",
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        "providerMetadata": {
          "dateUpdated": "2025-10-21T22:55:33.798Z",
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        "timeline": [
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            "lang": "en",
            "time": "2025-04-09T00:00:00.000Z",
            "value": "CVE-2024-53150 added to CISA KEV"
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        ],
        "title": "CISA ADP Vulnrichment"
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      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T20:46:35.493Z",
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    "cna": {
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              "versionType": "git"
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            {
              "lessThan": "74cb86e1006c5437b1d90084d22018da30fddc77",
              "status": "affected",
              "version": "b8e4f1fdfa422398c2d6c47bfb7d1feb3046d70a",
              "versionType": "git"
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            {
              "lessThan": "ea0fa76f61cf8e932d1d26e6193513230816e11d",
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              "lessThan": "a3dd4d63eeb452cfb064a13862fb376ab108f6a6",
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            {
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              "version": "9feeaa50e5b4b0b71259d918a36ecf9059e60796",
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            {
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              "version": "3b17a13b687ae99939dc94a4ae01fbc34f68decc",
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            },
            {
              "lessThan": "4.20",
              "status": "affected",
              "version": "4.19.84",
              "versionType": "semver"
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            {
              "lessThan": "5.4",
              "status": "affected",
              "version": "5.3.11",
              "versionType": "semver"
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          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "sound/usb/clock.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.4"
            },
            {
              "lessThan": "5.4",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.287",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.231",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.174",
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            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.120",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.64",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.13",
              "versionType": "original_commit_for_fix"
            }
          ]
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      ],
      "cpeApplicability": [
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          "nodes": [
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Fix out of bounds reads when finding clock sources\n\nThe current USB-audio driver code doesn't check bLength of each\ndescriptor at traversing for clock descriptors.  That is, when a\ndevice provides a bogus descriptor with a shorter bLength, the driver\nmight hit out-of-bounds reads.\n\nFor addressing it, this patch adds sanity checks to the validator\nfunctions for the clock descriptor traversal.  When the descriptor\nlength is shorter than expected, it's skipped in the loop.\n\nFor the clock source and clock multiplier descriptors, we can just\ncheck bLength against the sizeof() of each descriptor type.\nOTOH, the clock selector descriptor of UAC2 and UAC3 has an array\nof bNrInPins elements and two more fields at its tail, hence those\nhave to be checked in addition to the sizeof() check."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-23T15:55:17.404Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/a632bdcb359fd8145e86486ff8612da98e239acd"
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        {
          "url": "https://git.kernel.org/stable/c/a3dd4d63eeb452cfb064a13862fb376ab108f6a6"
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      "title": "ALSA: usb-audio: Fix out of bounds reads when finding clock sources",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-53150",
    "datePublished": "2024-12-24T11:28:50.175Z",
    "dateReserved": "2024-11-19T17:17:24.999Z",
    "dateUpdated": "2026-05-23T15:55:17.404Z",
    "state": "PUBLISHED"
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03 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-03",
  "epss": 0.01354,
  "percentile": 0.7162
}
03 Nov 2026, 02:22 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-02",
  "epss": 0.01354,
  "percentile": 0.71587
}
03 Nov 2026, 02:22 Jerusalem · CISA KEV status changed

Stored KEV snapshot at this observation.

{
  "cveID": "CVE-2024-53150",
  "cwes": [
    "CWE-125"
  ],
  "dateAdded": "2025-04-09",
  "dueDate": "2025-04-30",
  "forensicTriage": "No",
  "knownRansomwareCampaignUse": "Unknown",
  "notes": "This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. For more information, please see: https://lore.kernel.org/linux-cve-announce/2024122427-CVE-2024-53150-3a7d@gregkh/ ; https://source.android.com/docs/security/bulletin/2025-04-01 ; https://nvd.nist.gov/vuln/detail/CVE-2024-53150",
  "product": "Kernel",
  "requiredAction": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.",
  "shortDescription": "Linux Kernel contains an out-of-bounds read vulnerability in the USB-audio driver that allows a local, privileged attacker to obtain potentially sensitive information.",
  "vendorProject": "Linux",
  "vulnerabilityName": "Linux Kernel Out-of-Bounds Read Vulnerability"
}
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