CVE-2023-52743

Kernel warning via mismatched workqueue reclaim flags

Published May 21, 2024 · Updated May 11, 2026

Resource-management flaw in the Linux kernel ice driver triggers a kernel warning when both ice and irdma drivers are loaded. The ice driver marks its service workqueue WQ_MEM_RECLAIM despite having no reclamation role, then flushes an unmarked irdma workqueue and trips check_flush_dependency. Exposure requires both drivers to be loaded; public records document a warning but no attacker-controlled crash, data access, or code execution.

CVSS severityUnavailable
Unscored
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource-management flaw in the Linux kernel ice driver triggers a kernel warning when both ice and irdma drivers are loaded. The ice driver marks its service workqueue WQ_MEM_RECLAIM despite having no reclamation role, then flushes an unmarked irdma workqueue and trips check_flush_dependency. Exposure requires both drivers to be loaded; public records document a warning but no attacker-controlled crash, data access, or code execution.

The record

CVE
CVE-2023-52743
Published
May 21, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. May 21, 2024CVE 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?

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

  1. Affected versionversion=4.17
  2. Affected versionversion=940b61af02f497fcd911b9e2d75c6b8cf76b92fd <1ad4112c9fcf0bc08222b2b1614fba52ffd12255
  3. Affected versionversion=940b61af02f497fcd911b9e2d75c6b8cf76b92fd <4d159f7884f78b1aacb99b4fc37d1e3cb1194e39
  4. Affected versionversion=940b61af02f497fcd911b9e2d75c6b8cf76b92fd <87a5e3fc8416106e290c448fc8a6dd50ab24c634
  5. Affected versionversion=940b61af02f497fcd911b9e2d75c6b8cf76b92fd <ca834a017851c50464c25a85f3cb2daefff7bede
  6. Affected versionversion=940b61af02f497fcd911b9e2d75c6b8cf76b92fd <df59e05401450973c8c7e96fd74b49e24442dc1f

What conditions does exploitation require?

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

What is affected?

The Linux Kernel Organization · Linuxversion=4.17; version=940b61af02f497fcd911b9e2d75c6b8cf76b92fd <1ad4112c9fcf0bc08222b2b1614fba52ffd12255; version=940b61af02f497fcd911b9e2d75c6b8cf76b92fd <4d159f7884f78b1aacb99b4fc37d1e3cb1194e39; version=940b61af02f497fcd911b9e2d75c6b8cf76b92fd <87a5e3fc8416106e290c448fc8a6dd50ab24c634; version=940b61af02f497fcd911b9e2d75c6b8cf76b92fd <ca834a017851c50464c25a85f3cb2daefff7bede; version=940b61af02f497fcd911b9e2d75c6b8cf76b92fd <df59e05401450973c8c7e96fd74b49e24442dc1f

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

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)
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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