PT-2026-33324 · Fio · Fio

Published 2026-04-16 · Updated 2026-04-25 · CVE-2026-30656

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions fio (Flexible I/O Tester) version 3.41

Description A NULL pointer dereference occurs when parsing job files containing the 'fdp pli' option. The callback function str fdp pli cb() fails to validate the input pointer and calls strdup() on a NULL value when the option is provided without an argument, leading to a segmentation fault and process crash.

Recommendations As a temporary workaround, avoid using the 'fdp pli' option in job files until a fix is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2026-30656

OESA-2026-2095

OESA-2026-2096

OESA-2026-2097

OESA-2026-2098

OESA-2026-2099

Affected Products

Fio

References · 20

• https://osv.dev/vulnerability/OESA-2026-2098 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-30656 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2026-2099 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2026-2097 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-30656 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-30656 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2026-2095 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-30656 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-30656 · Security Note
• https://osv.dev/vulnerability/OESA-2026-2096 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-30656 · Vendor Advisory
• https://github.com/axboe/fio/issues/2055 · Note
• https://github.com/axboe/fio/commit/9387e61b5fcfbce1e4ed29b0cd19890a37ba1766 · Note
• https://openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-2098 · Note
• https://gist.github.com/Criticayon/eb5e69163bfa4ce684e62ed5c939b76e · Note