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CVE-2024-53150

Linux Kernel Out-of-Bounds Read Vulnerability

Published Dec 24, 2024Sources checked Oct 3, 2026
7.1HIGHCVSS out of 10
What this means

Actively exploited

CISA lists CVE-2024-53150 in its Known Exploited Vulnerabilities catalog, which means exploitation has been observed. The entry applies to Linux Kernel.

  • Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
What to do next

Remediation and response

CISA KEVListedObserved exploitation
EPSS1.4%Estimated 30-day exploitation probability
Ransomware useNot markedCISA KEV ransomware field
Threat actors0Source-linked actor relationships
Overview

What is CVE-2024-53150?

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.