Local process crash via freed option sorting
Published Sep 23, 2025 · Updated Sep 23, 2025
Use-after-free in fio 3.41 and earlier allows local users to crash the process by parsing a crafted job file with fio. The __parse_jobs_ini function frees the opts array before passing it to fio_options_parse, where qsort invokes opt_cmp and dereferences freed entries. The published PoC requires local execution of fio with the crafted job file and demonstrates a process crash; no code execution is documented.
Summary
What happened
Use-after-free in fio 3.41 and earlier allows local users to crash the process by parsing a crafted job file with fio. The __parse_jobs_ini function frees the opts array before passing it to fio_options_parse, where qsort invokes opt_cmp and dereferences freed entries. The published PoC requires local execution of fio with the crafted job file and demonstrates a process crash; no code execution is documented.
The record
- CVE
- CVE-2025-10824
- Published
- Sep 23, 2025
- Updated
- Sep 23, 2025
- Vendor
- Jens Axboe
- Product
- fio
- Classifications
- CWE-416, CWE-119, T1203
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 23, 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
- fio crafted 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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