Local service interruption via workqueue statistics race
Published Sep 16, 2025 · Updated Sep 16, 2025
Race condition in Linux kernel 6.5 allows local users to interrupt service through concurrent workqueue statistics updates. The process_one_work function increments pwq statistics after releasing the pool lock, allowing worker threads to read and write shared counters without synchronization. Exploitation requires local low-privileged access and favorable timing; the published impact is limited to availability.
Summary
What happened
Race condition in Linux kernel 6.5 allows local users to interrupt service through concurrent workqueue statistics updates. The process_one_work function increments pwq statistics after releasing the pool lock, allowing worker threads to read and write shared counters without synchronization. Exploitation requires local low-privileged access and favorable timing; the published impact is limited to availability.
The record
- CVE
- CVE-2023-53329
- Published
- Sep 16, 2025
- Updated
- Sep 16, 2025
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- CWE-362, T1499
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 16, 2025CVE publishedPublication date reported by the CVE source.
- Sep 16, 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.
- Affected versionversion=6.5
- Affected versionversion=725e8ec59c56c65fb92e343c10a8842cd0d4f194 <ce55024f28589b0012fa2c6b5748ec5a180b7fbe
- Affected versionversion=725e8ec59c56c65fb92e343c10a8842cd0d4f194 <fe48ba7daefe75bbbefa2426deddc05f2d530d2d
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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