CVE-2023-54294

Kernel memory leak via orphaned RAID10 thread

Published Dec 30, 2025 · Updated Dec 30, 2025

Resource leak in affected Linux kernel releases allows attackers to retain kernel memory when RAID10 array setup fails. Within raid10_run(), setup_conf() creates conf->thread, but an error before mddev->thread is assigned bypasses cleanup and leaves that thread allocation unreleased. Reachability requires initiating RAID10 configuration and hitting the narrow setup-failure path; each successful trigger leaks kernel memory without reported code execution or data access.

CVSS severityUnavailable
Unscored
EPSS probability0.21%
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 affected Linux kernel releases allows attackers to retain kernel memory when RAID10 array setup fails. Within raid10_run(), setup_conf() creates conf->thread, but an error before mddev->thread is assigned bypasses cleanup and leaves that thread allocation unreleased. Reachability requires initiating RAID10 configuration and hitting the narrow setup-failure path; each successful trigger leaks kernel memory without reported code execution or data access.

The record

CVE
CVE-2023-54294
Published
Dec 30, 2025
Updated
Dec 30, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Dec 30, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 30, 2025Record 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=4.16
  2. Affected versionversion=43a521238aca0e24d50add1db125a61bda2a3527 <2a65555f7e0f4a05b663879908a991e6d9f81e51
  3. Affected versionversion=43a521238aca0e24d50add1db125a61bda2a3527 <36ba0c7b86acd9c2ea80a273204d52c21c955471
  4. Affected versionversion=43a521238aca0e24d50add1db125a61bda2a3527 <3725b35fc0e5e4eea0434ef625f3d92f3059d080
  5. Affected versionversion=43a521238aca0e24d50add1db125a61bda2a3527 <5d763f708b0f918fb87799e33c25113ae6081216
  6. Affected versionversion=43a521238aca0e24d50add1db125a61bda2a3527 <abf4d67060c8f63caff096e5fca1564bfef1e5d4
  7. Affected versionversion=43a521238aca0e24d50add1db125a61bda2a3527 <d6cfcf98b824591cffa4c1e9889fb4fa619359fe
  8. Affected versionversion=43a521238aca0e24d50add1db125a61bda2a3527 <ec473e82e10d39a02eb59b0b95e546119a3bdb79
  9. Affected versionversion=43a521238aca0e24d50add1db125a61bda2a3527 <f0ddb83da3cbbf8a1f9087a642c448ff52ee9abd

What conditions does exploitation require?

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

What is affected?

The Linux Kernel Organization · Linuxversion=4.16; version=43a521238aca0e24d50add1db125a61bda2a3527 <2a65555f7e0f4a05b663879908a991e6d9f81e51; version=43a521238aca0e24d50add1db125a61bda2a3527 <36ba0c7b86acd9c2ea80a273204d52c21c955471; version=43a521238aca0e24d50add1db125a61bda2a3527 <3725b35fc0e5e4eea0434ef625f3d92f3059d080; version=43a521238aca0e24d50add1db125a61bda2a3527 <5d763f708b0f918fb87799e33c25113ae6081216; version=43a521238aca0e24d50add1db125a61bda2a3527 <abf4d67060c8f63caff096e5fca1564bfef1e5d4; version=43a521238aca0e24d50add1db125a61bda2a3527 <d6cfcf98b824591cffa4c1e9889fb4fa619359fe; version=43a521238aca0e24d50add1db125a61bda2a3527 <ec473e82e10d39a02eb59b0b95e546119a3bdb79; version=43a521238aca0e24d50add1db125a61bda2a3527 <f0ddb83da3cbbf8a1f9087a642c448ff52ee9abd

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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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