CVE-2023-53758

Kernel crash via orphaned QuadSPI controller

Published Dec 8, 2025 · Updated May 11, 2026

Denial of service in affected Linux kernel 6.x branches allows attackers to trigger a kernel oops during Atmel QuadSPI removal. The atmel_qspi_remove() path exits when runtime resume fails without unregistering the SPI controller, while managed teardown unmaps its register space. The trigger requires an Atmel QuadSPI device, a failed runtime resume, device unbinding, and later use of the orphaned controller.

CVSS severityUnavailable
Unscored
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in affected Linux kernel 6.x branches allows attackers to trigger a kernel oops during Atmel QuadSPI removal. The atmel_qspi_remove() path exits when runtime resume fails without unregistering the SPI controller, while managed teardown unmaps its register space. The trigger requires an Atmel QuadSPI device, a failed runtime resume, device unbinding, and later use of the orphaned controller.

The record

CVE
CVE-2023-53758
Published
Dec 8, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Dec 8, 2025CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=4a2f83b7f78092a6d9e98fb5573d8f4b79c56336 <618770d4d8e40b7f8ed9eb5f210cd9164dfac47d
  2. Affected versionversion=4a2f83b7f78092a6d9e98fb5573d8f4b79c56336 <77806d7c9bebe40a8cdce2b8d30fbe6511745df8
  3. Affected versionversion=4a2f83b7f78092a6d9e98fb5573d8f4b79c56336 <9448bc1dee65f86c0fe64d9dea8b410af0586886
  4. Affected versionversion=4a2f83b7f78092a6d9e98fb5573d8f4b79c56336 <f6974fb20499e3b6522daa7aec822aac11dfcf42
  5. Affected versionversion=6.0

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=4a2f83b7f78092a6d9e98fb5573d8f4b79c56336 <618770d4d8e40b7f8ed9eb5f210cd9164dfac47d; version=4a2f83b7f78092a6d9e98fb5573d8f4b79c56336 <77806d7c9bebe40a8cdce2b8d30fbe6511745df8; version=4a2f83b7f78092a6d9e98fb5573d8f4b79c56336 <9448bc1dee65f86c0fe64d9dea8b410af0586886; version=4a2f83b7f78092a6d9e98fb5573d8f4b79c56336 <f6974fb20499e3b6522daa7aec822aac11dfcf42; version=6.0

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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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)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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

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Your stack

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