# CVE-2024-53150: ALSA: usb-audio: Fix out of bounds reads when finding clock sources

> CVE-2024-53150: ALSA: usb-audio: Fix out of bounds reads when finding clock sources. CVSS 7.1 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2024-53150
Last updated: 2026-06-17T08:08:25Z

- Published: 2024-12-24 11:28 UTC · Updated: 2026-06-17 08:08 UTC · Assigner: Linux
- CVSS: 7.1 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- EPSS: 1.4%, 71th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2025-04-09, federal due date 2025-04-30, ransomware use: Unknown

## Description

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.

## 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.

## Affected vendors and products

- Linux: Linux

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2024-53150)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2024-53150)
- [https://git.kernel.org/stable/c/096bb5b43edf755bc4477e64004fa3a20539ec2f](https://git.kernel.org/stable/c/096bb5b43edf755bc4477e64004fa3a20539ec2f)
- [https://git.kernel.org/stable/c/45a92cbc88e4013bfed7fd2ccab3ade45f8e896b](https://git.kernel.org/stable/c/45a92cbc88e4013bfed7fd2ccab3ade45f8e896b)
- [https://git.kernel.org/stable/c/74cb86e1006c5437b1d90084d22018da30fddc77](https://git.kernel.org/stable/c/74cb86e1006c5437b1d90084d22018da30fddc77)
- [https://git.kernel.org/stable/c/a3dd4d63eeb452cfb064a13862fb376ab108f6a6](https://git.kernel.org/stable/c/a3dd4d63eeb452cfb064a13862fb376ab108f6a6)
- [https://git.kernel.org/stable/c/a632bdcb359fd8145e86486ff8612da98e239acd](https://git.kernel.org/stable/c/a632bdcb359fd8145e86486ff8612da98e239acd)
- [https://git.kernel.org/stable/c/ab011f7439d9bbfd34fd3b9cef4b2d6d952c9bb9](https://git.kernel.org/stable/c/ab011f7439d9bbfd34fd3b9cef4b2d6d952c9bb9)
- [https://git.kernel.org/stable/c/da13ade87a12dd58829278bc816a61bea06a56a9](https://git.kernel.org/stable/c/da13ade87a12dd58829278bc816a61bea06a56a9)
- [https://git.kernel.org/stable/c/ea0fa76f61cf8e932d1d26e6193513230816e11d](https://git.kernel.org/stable/c/ea0fa76f61cf8e932d1d26e6193513230816e11d)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2024-53150 · Markdown: https://rewindex.com/cve/CVE-2024-53150.md · JSON: https://rewindex.com/api/v1/cves/CVE-2024-53150 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:13:05.192Z