CVE-2026-30656

HIGH

fio 3.41 - Denial of Service via fdp_pli Option NULL Pointer Dereference

Title source: llm

Description

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.

References (2)

Core 2

Core References

https://github.com/axboe/fio/issues/2055

https://gist.github.com/Criticayon/eb5e69163bfa4ce684e62ed5c939b76e

Scores

CVSS v3 7.5

EPSS 0.0028

EPSS Percentile 19.4%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

CWE

CWE-476

Status published

Published Apr 16, 2026

Tracked Since Apr 16, 2026