Vulnerability DatabaseCVE-2026-30656
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CVE-2026-30656
Published:April 16, 2026
Updated:May 18, 2026
A NULL pointer dereference vulnerability exists in fio (Flexible I/O Tester) v3.41 when parsing job files containing the fdp_pli option. The callback function str_fdp_pli_cb() does not validate the input pointer and calls strdup() on a NULL value when the option is specified without an argument. This results in a segmentation fault and process crash.
Affected Packages
https://github.com/axboe/fio.git (GITHUB):
Affected version(s) >=fio-1.1 <fio-3.42
Fix Suggestion:
Update to version fio-3.42
Related Resources (2)
https://github.com/axboe/fio/issues/2055
https://gist.github.com/Criticayon/eb5e69163bfa4ce684e62ed5c939b76e
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CVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
NULL Pointer Dereference
CWE-476
EPSS
Base Score:
0.09