ubuntu-cve-2026-30656
Vulnerability from osv_ubuntu
Published
2026-04-16 15:17
Modified
2026-05-20 15:26
Summary
Details
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.
Severity
7.5 (High)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "fio",
"binary_version": "2.1.3-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:14.04:LTS",
"name": "fio",
"purl": "pkg:deb/ubuntu/fio@2.1.3-1?arch=source\u0026distro=trusty"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.0.8-2",
"2.1.3-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "fio",
"binary_version": "2.2.10-1ubuntu1"
},
{
"binary_name": "gfio",
"binary_version": "2.2.10-1ubuntu1"
}
]
},
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "fio",
"purl": "pkg:deb/ubuntu/fio@2.2.10-1ubuntu1?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.1.11-2",
"2.2.10-1",
"2.2.10-1ubuntu1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "fio",
"binary_version": "3.1-1"
},
{
"binary_name": "gfio",
"binary_version": "3.1-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "fio",
"purl": "pkg:deb/ubuntu/fio@3.1-1?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.16-1",
"3.1-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "fio",
"binary_version": "3.16-1"
},
{
"binary_name": "gfio",
"binary_version": "3.16-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "fio",
"purl": "pkg:deb/ubuntu/fio@3.16-1?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.12-2",
"3.16-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "fio",
"binary_version": "3.28-1"
},
{
"binary_name": "gfio",
"binary_version": "3.28-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "fio",
"purl": "pkg:deb/ubuntu/fio@3.28-1?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.25-2",
"3.28-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "fio",
"binary_version": "3.36-1ubuntu0.1"
},
{
"binary_name": "fio-examples",
"binary_version": "3.36-1ubuntu0.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "fio",
"purl": "pkg:deb/ubuntu/fio@3.36-1ubuntu0.1?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.35-2",
"3.36-1",
"3.36-1build1",
"3.36-1build2",
"3.36-1ubuntu0.1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "fio",
"binary_version": "3.39-1"
},
{
"binary_name": "fio-examples",
"binary_version": "3.39-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "fio",
"purl": "pkg:deb/ubuntu/fio@3.39-1?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.38-1",
"3.39-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "fio",
"binary_version": "3.41-2"
},
{
"binary_name": "fio-examples",
"binary_version": "3.41-2"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "fio",
"purl": "pkg:deb/ubuntu/fio@3.41-2?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.39-1",
"3.41-2"
]
}
],
"aliases": [],
"details": "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.",
"id": "UBUNTU-CVE-2026-30656",
"modified": "2026-05-20T15:26:08Z",
"published": "2026-04-16T15:17:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-30656"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-30656"
},
{
"type": "REPORT",
"url": "https://github.com/axboe/fio/issues/2055"
},
{
"type": "REPORT",
"url": "https://github.com/axboe/fio/commit/9387e61b5fcfbce1e4ed29b0cd19890a37ba1766"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2026-30656"
]
}
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
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