Local process crash via empty buffer pattern
Published Sep 22, 2025 · Updated Sep 23, 2025
NULL pointer dereference in Jens Axboe fio 3.41 and earlier allows local users to crash the process with a crafted job file. The str_buffer_pattern_cb callback passes a NULL value from an empty buffer_pattern option to strlen while parsing the file. Local command execution and control of a fio job file are required, and the demonstrated consequence is termination of the invoked fio process.
Summary
What happened
NULL pointer dereference in Jens Axboe fio 3.41 and earlier allows local users to crash the process with a crafted job file. The str_buffer_pattern_cb callback passes a NULL value from an empty buffer_pattern option to strlen while parsing the file. Local command execution and control of a fio job file are required, and the demonstrated consequence is termination of the invoked fio process.
The record
- CVE
- CVE-2025-10823
- Published
- Sep 22, 2025
- Updated
- Sep 23, 2025
- Vendor
- Jens Axboe
- Product
- fio
- Classifications
- CWE-404, CWE-476, T1499.004
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 22, 2025CVE publishedPublication date reported by the CVE source.
- Sep 23, 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=3.0
- Affected versionversion=3.1
- Affected versionversion=3.10
- Affected versionversion=3.11
- Affected versionversion=3.12
- Affected versionversion=3.13
- Affected versionversion=3.14
- Affected versionversion=3.15
- Affected versionversion=3.16
- Affected versionversion=3.17
- Affected versionversion=3.18
- Affected versionversion=3.19
- Affected versionversion=3.2
- Affected versionversion=3.20
- Affected versionversion=3.21
- Affected versionversion=3.22
- Affected versionversion=3.23
- Affected versionversion=3.24
- Affected versionversion=3.25
- Affected versionversion=3.26
- Affected versionversion=3.27
- Affected versionversion=3.28
- Affected versionversion=3.29
- Affected versionversion=3.3
- Affected versionversion=3.30
- Affected versionversion=3.31
- Affected versionversion=3.32
- Affected versionversion=3.33
- Affected versionversion=3.34
- Affected versionversion=3.35
- Affected versionversion=3.36
- Affected versionversion=3.37
- Affected versionversion=3.38
- Affected versionversion=3.39
- Affected versionversion=3.4
- Affected versionversion=3.40
- Affected versionversion=3.41
- Affected versionversion=3.5
- Affected versionversion=3.6
- Affected versionversion=3.7
- Affected versionversion=3.8
- Affected versionversion=3.9
What conditions does exploitation require?
What is affected?
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.
Weakness, pattern, technique
Public exploit references
- Crafted buffer_pattern job-file proof of conceptproof of concept · demonstrated
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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