FKIE_CVE-2021-47423
Vulnerability from fkie_nvd - Published: 2024-05-21 15:15 - Updated: 2026-06-17 04:17
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
drm/nouveau/debugfs: fix file release memory leak
When using single_open() for opening, single_release() should be
called, otherwise the 'op' allocated in single_open() will be leaked.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | 5.15 | |
| linux | linux_kernel | 5.15 | |
| linux | linux_kernel | 5.15 | |
| linux | linux_kernel | 5.15 |
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/gpu/drm/nouveau/nouveau_debugfs.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "df0c9418923679bc6d0060bdb1b5bf2c755159e0",
"status": "affected",
"version": "6e9fc177399f08446293fec7607913fdbc95e191",
"versionType": "git"
},
{
"lessThan": "9f9d4c88b2edc7924e19c44909cfc3fa4e4d3d43",
"status": "affected",
"version": "6e9fc177399f08446293fec7607913fdbc95e191",
"versionType": "git"
},
{
"lessThan": "1508b09945bde393326a9dab73b1fc35f672d771",
"status": "affected",
"version": "6e9fc177399f08446293fec7607913fdbc95e191",
"versionType": "git"
},
{
"lessThan": "11cd944bb87d9e575b94c07c952105eda745b459",
"status": "affected",
"version": "6e9fc177399f08446293fec7607913fdbc95e191",
"versionType": "git"
},
{
"lessThan": "f69556a42043b5444ca712ee889829ba89fdcba8",
"status": "affected",
"version": "6e9fc177399f08446293fec7607913fdbc95e191",
"versionType": "git"
},
{
"lessThan": "88c3610045ca6e699331b6bb5c095c5565f30721",
"status": "affected",
"version": "6e9fc177399f08446293fec7607913fdbc95e191",
"versionType": "git"
},
{
"lessThan": "f5a8703a9c418c6fc54eb772712dfe7641e3991c",
"status": "affected",
"version": "6e9fc177399f08446293fec7607913fdbc95e191",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/gpu/drm/nouveau/nouveau_debugfs.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "4.5"
},
{
"lessThan": "4.5",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.9.*",
"status": "unaffected",
"version": "4.9.287",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"version": "4.14.251",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.211",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.153",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.73",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.14.*",
"status": "unaffected",
"version": "5.14.12",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "5.15",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "7D94FCF9-86AA-4CB2-96FC-F5EEC5E24530",
"versionEndExcluding": "4.9.287",
"versionStartIncluding": "4.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "E0CA000A-C041-41C7-BB29-59359F62F9AD",
"versionEndExcluding": "4.14.251",
"versionStartIncluding": "4.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "19F2BDAE-0E29-4C98-A02A-4DA148685995",
"versionEndExcluding": "4.19.211",
"versionStartIncluding": "4.15",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "99815E71-6131-41A5-B309-1917CBBDF09C",
"versionEndExcluding": "5.4.153",
"versionStartIncluding": "4.20",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "83DBC258-8513-4ECB-A55E-57E743405733",
"versionEndExcluding": "5.10.73",
"versionStartIncluding": "5.5",
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},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "20EB962C-32DC-448F-A900-BCF9A726F9EB",
"versionEndExcluding": "5.14.12",
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},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:*",
"matchCriteriaId": "E46C74C6-B76B-4C94-A6A4-FD2FFF62D644",
"vulnerable": true
},
{
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"matchCriteriaId": "60134C3A-06E4-48C1-B04F-2903732A4E56",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc3:*:*:*:*:*:*",
"matchCriteriaId": "0460DA88-8FE1-46A2-9DDA-1F1ABA552E71",
"vulnerable": true
},
{
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"matchCriteriaId": "AF55383D-4DF2-45DC-93F7-571F4F978EAB",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/nouveau/debugfs: fix file release memory leak\n\nWhen using single_open() for opening, single_release() should be\ncalled, otherwise the \u0027op\u0027 allocated in single_open() will be leaked."
},
{
"lang": "es",
"value": " En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/nouveau/debugfs: corrige la p\u00e9rdida de memoria de liberaci\u00f3n de archivos. Cuando se usa single_open() para abrir, se debe llamar a single_release(); de lo contrario, se ejecutar\u00e1 la \u0027op\u0027 asignada en single_open(). filtrado."
}
],
"id": "CVE-2021-47423",
"lastModified": "2026-06-17T04:17:26.287",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2021-47423",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-05-22T18:29:52.464224Z",
"version": "2.0.3"
}
}
]
},
"published": "2024-05-21T15:15:27.727",
"references": [
{
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"tags": [
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],
"url": "https://git.kernel.org/stable/c/11cd944bb87d9e575b94c07c952105eda745b459"
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},
{
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{
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}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-401"
}
],
"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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