CVE-2023-53268

Service interruption via ASoC device-node reference leak

Published Sep 16, 2025 · Updated Sep 16, 2025

Resource leak in the Linux kernel ASoC fsl_mqs driver from 5.5 allows local users to exhaust resources and interrupt service. The successful probe path delays of_node_put() after syscon_node_to_regmap(), retaining a reference to the gpr_np device-tree node. Exploitation requires local low-privileged access and repeated reachability of the affected driver's successful probe path.

CVSS severity5.5
Medium
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Resource leak in the Linux kernel ASoC fsl_mqs driver from 5.5 allows local users to exhaust resources and interrupt service. The successful probe path delays of_node_put() after syscon_node_to_regmap(), retaining a reference to the gpr_np device-tree node. Exploitation requires local low-privileged access and repeated reachability of the affected driver's successful probe path.

The record

CVE
CVE-2023-53268
Published
Sep 16, 2025
Updated
Sep 16, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.5
  2. Affected versionversion=a9d273671440c439c4f236123c59dd839c1a0eb7 <1bdb4a5ccab2316935ce4ad4fd4df8d36f0ffc6e
  3. Affected versionversion=a9d273671440c439c4f236123c59dd839c1a0eb7 <1c34890273a020d61d6127ade3f68ed1cb21c16a
  4. Affected versionversion=a9d273671440c439c4f236123c59dd839c1a0eb7 <402299cca89273b62384b5f9645ea49cd5fc4a57
  5. Affected versionversion=a9d273671440c439c4f236123c59dd839c1a0eb7 <6a129c0e9935112ecf2ffb6de98f83b8fd090c86
  6. Affected versionversion=a9d273671440c439c4f236123c59dd839c1a0eb7 <9a2585088a7d6f98a5a910f5b4b74b6d24e63156
  7. Affected versionversion=a9d273671440c439c4f236123c59dd839c1a0eb7 <b5a6930fc6a432e32714c4ed3c597077d999cf6d

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.5; version=a9d273671440c439c4f236123c59dd839c1a0eb7 <1bdb4a5ccab2316935ce4ad4fd4df8d36f0ffc6e; version=a9d273671440c439c4f236123c59dd839c1a0eb7 <1c34890273a020d61d6127ade3f68ed1cb21c16a; version=a9d273671440c439c4f236123c59dd839c1a0eb7 <402299cca89273b62384b5f9645ea49cd5fc4a57; version=a9d273671440c439c4f236123c59dd839c1a0eb7 <6a129c0e9935112ecf2ffb6de98f83b8fd090c86; version=a9d273671440c439c4f236123c59dd839c1a0eb7 <9a2585088a7d6f98a5a910f5b4b74b6d24e63156; version=a9d273671440c439c4f236123c59dd839c1a0eb7 <b5a6930fc6a432e32714c4ed3c597077d999cf6d

Published CVSS scores

5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo