FKIE_CVE-2011-4086
Vulnerability from fkie_nvd - Published: 2012-07-03 16:40 - Updated: 2026-06-16 23:34
Severity
Summary
The journal_unmap_buffer function in fs/jbd2/transaction.c in the Linux kernel before 3.3.1 does not properly handle the _Delay and _Unwritten buffer head states, which allows local users to cause a denial of service (system crash) by leveraging the presence of an ext4 filesystem that was mounted with a journal.
References
Impacted products
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The journal_unmap_buffer function in fs/jbd2/transaction.c in the Linux kernel before 3.3.1 does not properly handle the _Delay and _Unwritten buffer head states, which allows local users to cause a denial of service (system crash) by leveraging the presence of an ext4 filesystem that was mounted with a journal."
},
{
"lang": "es",
"value": "La funci\u00f3n journal_unmap_buffer en fs/jbd2/transaction.c en el kernel de linux anterior a v3.3.1 no maneja correctamente el \"buffer head states\" _Delay y _Unwritten, permitiendo a usuarios locales causar una denegaci\u00f3n de servicio aprovech\u00e1ndose de la presencia de un sistema de ficheros ext4 que est\u00e1 montado con journal"
}
],
"id": "CVE-2011-4086",
"lastModified": "2026-06-16T23:34:23.930",
"metrics": {
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"baseScore": 4.9,
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"integrityImpact": "NONE",
"vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C",
"version": "2.0"
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"exploitabilityScore": 3.9,
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"obtainAllPrivilege": false,
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"source": "nvd@nist.gov",
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"published": "2012-07-03T16:40:31.020",
"references": [
{
"source": "secalert@redhat.com",
"url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=15291164b22a357cb211b618adfef4fa82fc0de3"
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{
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"url": "http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.html"
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{
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"url": "http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00013.html"
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{
"source": "secalert@redhat.com",
"url": "http://rhn.redhat.com/errata/RHSA-2012-0571.html"
},
{
"source": "secalert@redhat.com",
"url": "http://rhn.redhat.com/errata/RHSA-2012-0670.html"
},
{
"source": "secalert@redhat.com",
"url": "http://secunia.com/advisories/48898"
},
{
"source": "secalert@redhat.com",
"url": "http://secunia.com/advisories/48964"
},
{
"source": "secalert@redhat.com",
"url": "http://www.debian.org/security/2012/dsa-2469"
},
{
"source": "secalert@redhat.com",
"url": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.1"
},
{
"source": "secalert@redhat.com",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=749143"
},
{
"source": "secalert@redhat.com",
"tags": [
"Patch"
],
"url": "https://github.com/torvalds/linux/commit/15291164b22a357cb211b618adfef4fa82fc0de3"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=15291164b22a357cb211b618adfef4fa82fc0de3"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00013.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://rhn.redhat.com/errata/RHSA-2012-0571.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://rhn.redhat.com/errata/RHSA-2012-0670.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://secunia.com/advisories/48898"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://secunia.com/advisories/48964"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.debian.org/security/2012/dsa-2469"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.1"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=749143"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://github.com/torvalds/linux/commit/15291164b22a357cb211b618adfef4fa82fc0de3"
}
],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-119"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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