CVE-2023-53567

Service interruption via permanent DMA resource leak

Published Oct 4, 2025 · Updated Oct 4, 2025

Resource leak in the QUP SPI driver in affected Linux kernels allows local users to interrupt service through device removal. The spi_qup_remove callback returns when runtime power management cannot wake the device, bypassing DMA cleanup and permanently leaking those resources. Reaching the flaw requires local low-privileged access and a QUP SPI device-removal path; accumulated leaks exhaust resources and interrupt service.

CVSS severity5.5
Medium
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource leak in the QUP SPI driver in affected Linux kernels allows local users to interrupt service through device removal. The spi_qup_remove callback returns when runtime power management cannot wake the device, bypassing DMA cleanup and permanently leaking those resources. Reaching the flaw requires local low-privileged access and a QUP SPI device-removal path; accumulated leaks exhaust resources and interrupt service.

The record

CVE
CVE-2023-53567
Published
Oct 4, 2025
Updated
Oct 4, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-401, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 4, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 4, 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=3.15
  2. Affected versionversion=64ff247a978facc437d40f0c9b754675846a98f0 <2d0f63077f481f11a07f20eab1c1f4367dfaef32
  3. Affected versionversion=64ff247a978facc437d40f0c9b754675846a98f0 <49c17fccae36505550c9121891722fff337f148a
  4. Affected versionversion=64ff247a978facc437d40f0c9b754675846a98f0 <55ecdcd12bc176b86fecbcb125ac814ac8fe857a
  5. Affected versionversion=64ff247a978facc437d40f0c9b754675846a98f0 <61f49171a43ab1f80c73c5c88c508770c461e0f2
  6. Affected versionversion=64ff247a978facc437d40f0c9b754675846a98f0 <8632384337038b97910c2f7bb5a3f377aa68d001
  7. Affected versionversion=64ff247a978facc437d40f0c9b754675846a98f0 <bc88243bbe6140d289bb32b4ee4607ba5ce1124a
  8. Affected versionversion=64ff247a978facc437d40f0c9b754675846a98f0 <f345d4d71e87d878437417ffbb9a7d4e16d235eb
  9. Affected versionversion=64ff247a978facc437d40f0c9b754675846a98f0 <fd53f41bd86daa39b454fd4637a908ff2123547f

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.15; version=64ff247a978facc437d40f0c9b754675846a98f0 <2d0f63077f481f11a07f20eab1c1f4367dfaef32; version=64ff247a978facc437d40f0c9b754675846a98f0 <49c17fccae36505550c9121891722fff337f148a; version=64ff247a978facc437d40f0c9b754675846a98f0 <55ecdcd12bc176b86fecbcb125ac814ac8fe857a; version=64ff247a978facc437d40f0c9b754675846a98f0 <61f49171a43ab1f80c73c5c88c508770c461e0f2; version=64ff247a978facc437d40f0c9b754675846a98f0 <8632384337038b97910c2f7bb5a3f377aa68d001; version=64ff247a978facc437d40f0c9b754675846a98f0 <bc88243bbe6140d289bb32b4ee4607ba5ce1124a; version=64ff247a978facc437d40f0c9b754675846a98f0 <f345d4d71e87d878437417ffbb9a7d4e16d235eb; version=64ff247a978facc437d40f0c9b754675846a98f0 <fd53f41bd86daa39b454fd4637a908ff2123547f

Published CVSS scores

5.5NIST NVDCVSS: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.

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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

CWE-401Missing Release of Memory after Effective Lifetime
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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