FKIE_CVE-2021-47405
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:
HID: usbhid: free raw_report buffers in usbhid_stop
Free the unsent raw_report buffers when the device is removed.
Fixes a memory leak reported by syzbot at:
https://syzkaller.appspot.com/bug?id=7b4fa7cb1a7c2d3342a2a8a6c53371c8c418ab47
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 | * |
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/hid/usbhid/hid-core.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "7ce4e49146612261265671b1d30d117139021030",
"status": "affected",
"version": "f129ea6d1efe0eddcbb1f0faaec5623788ad9e58",
"versionType": "git"
},
{
"lessThan": "efc5c8d29256955cc90d8d570849b2d6121ed09f",
"status": "affected",
"version": "f129ea6d1efe0eddcbb1f0faaec5623788ad9e58",
"versionType": "git"
},
{
"lessThan": "c3156fea4d8a0e643625dff69a0421e872d1fdae",
"status": "affected",
"version": "f129ea6d1efe0eddcbb1f0faaec5623788ad9e58",
"versionType": "git"
},
{
"lessThan": "764ac04de056801dfe52a716da63f6e7018e7f3b",
"status": "affected",
"version": "f129ea6d1efe0eddcbb1f0faaec5623788ad9e58",
"versionType": "git"
},
{
"lessThan": "965147067fa1bedff3ae1f07ce3f89f1a14d2df3",
"status": "affected",
"version": "f129ea6d1efe0eddcbb1f0faaec5623788ad9e58",
"versionType": "git"
},
{
"lessThan": "f7ac4d24e1610b92689946fa88177673f1e88a3f",
"status": "affected",
"version": "f129ea6d1efe0eddcbb1f0faaec5623788ad9e58",
"versionType": "git"
},
{
"lessThan": "2b704864c92dcec2b295f276fcfbfb81d9831f81",
"status": "affected",
"version": "f129ea6d1efe0eddcbb1f0faaec5623788ad9e58",
"versionType": "git"
},
{
"lessThan": "f7744fa16b96da57187dc8e5634152d3b63d72de",
"status": "affected",
"version": "f129ea6d1efe0eddcbb1f0faaec5623788ad9e58",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/hid/usbhid/hid-core.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.28"
},
{
"lessThan": "2.6.28",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.4.*",
"status": "unaffected",
"version": "4.4.286",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.9.*",
"status": "unaffected",
"version": "4.9.285",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"version": "4.14.249",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.209",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.151",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.71",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.14.*",
"status": "unaffected",
"version": "5.14.10",
"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": "B91CAABE-0800-43BE-9D5D-D95C8E6C367B",
"versionEndExcluding": "4.4.286",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "531DC051-E22F-4355-A06F-BE9AF2124AA3",
"versionEndExcluding": "4.9.285",
"versionStartIncluding": "4.5",
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},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "9DFC8239-9F26-43B2-A340-8EFC6BC6BDA8",
"versionEndExcluding": "4.14.249",
"versionStartIncluding": "4.10",
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{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "21C23429-F802-4256-B3C2-9EEA76AC11FF",
"versionEndExcluding": "4.19.209",
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},
{
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},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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},
{
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}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: usbhid: free raw_report buffers in usbhid_stop\n\nFree the unsent raw_report buffers when the device is removed.\n\nFixes a memory leak reported by syzbot at:\nhttps://syzkaller.appspot.com/bug?id=7b4fa7cb1a7c2d3342a2a8a6c53371c8c418ab47"
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: HID: usbhid: buffers raw_report libres en usbhid_stop. Libera los buffers raw_report no enviados cuando se elimina el dispositivo. Corrige una p\u00e9rdida de memoria informada por syzbot en: https://syzkaller.appspot.com/bug?id=7b4fa7cb1a7c2d3342a2a8a6c53371c8c418ab47 "
}
],
"id": "CVE-2021-47405",
"lastModified": "2026-06-17T04:17:23.873",
"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-2021-47405",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-09-10T15:38:03.910355Z",
"version": "2.0.3"
}
}
]
},
"published": "2024-05-21T15:15:26.030",
"references": [
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"vulnStatus": "Analyzed",
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}
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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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