FKIE_CVE-2022-50140
Vulnerability from fkie_nvd - Published: 2025-06-18 11:15 - Updated: 2026-06-17 05:22
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
memstick/ms_block: Fix a memory leak
'erased_blocks_bitmap' is never freed. As it is allocated at the same time
as 'used_blocks_bitmap', it is likely that it should be freed also at the
same time.
Add the corresponding bitmap_free() in msb_data_clear().
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/memstick/core/ms_block.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "efd675246aec045507b9425c67b548cc2d782d8f",
"status": "affected",
"version": "0ab30494bc4f3bc1ea4659b7c5d97c5218554a63",
"versionType": "git"
},
{
"lessThan": "37958980eb4cd71ae594ace093c11b6a91e165e8",
"status": "affected",
"version": "0ab30494bc4f3bc1ea4659b7c5d97c5218554a63",
"versionType": "git"
},
{
"lessThan": "9d8b911fe3c3ed788c66edba7c90e32a4a7a5f53",
"status": "affected",
"version": "0ab30494bc4f3bc1ea4659b7c5d97c5218554a63",
"versionType": "git"
},
{
"lessThan": "9260a154b3b5e387dbceec7c0ac441470646bc6f",
"status": "affected",
"version": "0ab30494bc4f3bc1ea4659b7c5d97c5218554a63",
"versionType": "git"
},
{
"lessThan": "961d7d12080fe70847f944d656e36cd0dd0214ba",
"status": "affected",
"version": "0ab30494bc4f3bc1ea4659b7c5d97c5218554a63",
"versionType": "git"
},
{
"lessThan": "16e07966638717416abf45393d6a80a5a1034429",
"status": "affected",
"version": "0ab30494bc4f3bc1ea4659b7c5d97c5218554a63",
"versionType": "git"
},
{
"lessThan": "39be95d1ff7b44c1e969af72ba9da7332dfcc1da",
"status": "affected",
"version": "0ab30494bc4f3bc1ea4659b7c5d97c5218554a63",
"versionType": "git"
},
{
"lessThan": "54eb7a55be6779c4d0c25eaf5056498a28595049",
"status": "affected",
"version": "0ab30494bc4f3bc1ea4659b7c5d97c5218554a63",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/memstick/core/ms_block.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "3.12"
},
{
"lessThan": "3.12",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"version": "4.14.291",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.256",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.211",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.137",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.61",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.18.*",
"status": "unaffected",
"version": "5.18.18",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.19.*",
"status": "unaffected",
"version": "5.19.2",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.0",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "F6BB493B-6F4D-4080-95E2-CE277937CD80",
"versionEndExcluding": "4.14.291",
"versionStartIncluding": "3.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "6C47CDE3-B039-4AE5-B8E4-1DC820E473FF",
"versionEndExcluding": "4.19.256",
"versionStartIncluding": "4.15",
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},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "B1C63D19-C08C-4308-A848-B2523C9275BD",
"versionEndExcluding": "5.4.211",
"versionStartIncluding": "4.20",
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},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "C2BF720F-C5EE-4DE2-9BDF-CE4CFBC767F4",
"versionEndExcluding": "5.10.137",
"versionStartIncluding": "5.5",
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},
{
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},
{
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},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "5.19.2",
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"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmemstick/ms_block: Fix a memory leak\n\n\u0027erased_blocks_bitmap\u0027 is never freed. As it is allocated at the same time\nas \u0027used_blocks_bitmap\u0027, it is likely that it should be freed also at the\nsame time.\n\nAdd the corresponding bitmap_free() in msb_data_clear()."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: memstick/ms_block: Se corrige una fuga de memoria: la variable \u0027erased_blocks_bitmap\u0027 nunca se libera. Dado que se asigna al mismo tiempo que \u0027used_blocks_bitmap\u0027, es probable que deba liberarse tambi\u00e9n simult\u00e1neamente. Agregue el bitmap_free() correspondiente en msb_data_clear()."
}
],
"id": "CVE-2022-50140",
"lastModified": "2026-06-17T05:22:50.387",
"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"
}
]
},
"published": "2025-06-18T11:15:43.953",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/16e07966638717416abf45393d6a80a5a1034429"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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},
{
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},
{
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"tags": [
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],
"url": "https://git.kernel.org/stable/c/efd675246aec045507b9425c67b548cc2d782d8f"
}
],
"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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