What is CVE-2023-54022?

CVE-2023-54022 is a unscored severity Linux kernel vulnerability, affecting Linux kernel versions from 6.5 onward and patched in 6.5.3 and 6.6. CVE-2023-54022 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-54022?

CVE-2023-54022 has a CVSS score of pending NVD analysis out of 10, rated awaiting scoring severity.

Is there a patch available for CVE-2023-54022?

Yes, CVE-2023-54022 has been patched. Fixed versions include 6.5.3 and 6.6. If you are running Linux kernel 6.5 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2023-54022 actively exploited?

CVE-2023-54022 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2023-54022

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Fix potential memory leaks at error path for UMP open The allocation and initialization errors at alloc_midi_urbs() that is called at MIDI 2.0 / UMP device are supposed to be handled at the caller side by invoking free_midi_urbs(). However, free_midi_urbs() loops only for ep->num_urbs entries, and since ep->num_entries wasn't updated yet at the allocation / init error in alloc_midi_urbs(), this entry won't be released. The intention of free_midi_urbs() is to release the whole elements, so change the loop size to NUM_URBS to scan over all elements for fixing the missed releases. Also, the call of free_midi_urbs() is missing at snd_usb_midi_v2_open(). Although it'll be released later at reopen/close or disconnection, it's better to release immediately at the error path.

Package Linux Kernel

Published 2025-12-24

Last modified 2026-04-15

Patch available

Yes

Affected versions

Linux kernel versions 6.5 and later are affected. Fixed in 6.5.3, 6.6 and their respective stable series.

Affected from

≥ 6.5

Fixed in

✓ 6.5.3 6.5.x ✓ 6.6

References

The following references provide additional information about CVE-2023-54022 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/b1757fa30ef14f254f4719bf6f7d54a4c8207216
Patch
Kernel patch commit
https://git.kernel.org/stable/c/f819b343aa95d24d5f7d6e06660c7f62591abc5f
Patch

Frequently asked questions

What is CVE-2023-54022?

CVE-2023-54022 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.5 onward and has been patched in 6.5.3 and 6.6. CVE-2023-54022 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
Is there a patch available for CVE-2023-54022?

Yes — CVE-2023-54022 has been patched. Fixed versions include 6.5.3 and 6.6. If you are running Linux kernel 6.5 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2023-54022 actively exploited?

No — CVE-2023-54022 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.