PT-2025-52979 · Linux · Linux Kernel
Published
2025-12-24
·
Updated
2026-03-24
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CVE-2023-54022
None
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Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A flaw exists in the Linux kernel’s ALSA subsystem related to USB audio handling. Specifically, the issue involves potential memory leaks within the error handling path during the opening of Universal MIDI Packet (UMP) devices. The
alloc midi urbs() function may fail to correctly update the number of entries, leading to incomplete release of allocated resources by free midi urbs(). Additionally, the call to free midi urbs() was missing in snd usb midi v2 open(), potentially delaying resource release until disconnection or reopening. This could result in memory exhaustion over time.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
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Related Identifiers
Affected Products
Linux Kernel