fkie_cve-2021-47651
Vulnerability from fkie_nvd
Published
2025-02-26 06:37
Modified
2025-03-18 19:10
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
soc: qcom: rpmpd: Check for null return of devm_kcalloc
Because of the possible failure of the allocation, data->domains might
be NULL pointer and will cause the dereference of the NULL pointer
later.
Therefore, it might be better to check it and directly return -ENOMEM
without releasing data manually if fails, because the comment of the
devm_kmalloc() says "Memory allocated with this function is
automatically freed on driver detach.".
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * |
{
"configurations": [
{
"nodes": [
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"matchCriteriaId": "20548D34-DDDF-49E1-9708-FE7FA4FB8C21",
"versionEndExcluding": "5.4.189",
"versionStartIncluding": "5.1",
"vulnerable": true
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsoc: qcom: rpmpd: Check for null return of devm_kcalloc\n\nBecause of the possible failure of the allocation, data-\u003edomains might\nbe NULL pointer and will cause the dereference of the NULL pointer\nlater.\nTherefore, it might be better to check it and directly return -ENOMEM\nwithout releasing data manually if fails, because the comment of the\ndevm_kmalloc() says \"Memory allocated with this function is\nautomatically freed on driver detach.\"."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: soc: qcom: rpmpd: Verificar el retorno nulo de devm_kcalloc Debido al posible fallo de la asignaci\u00f3n, data-\u0026gt;domains podr\u00eda ser un puntero NULL y provocar\u00e1 la desreferencia del puntero NULL m\u00e1s adelante. Por lo tanto, podr\u00eda ser mejor verificarlo y devolver directamente -ENOMEM sin liberar los datos manualmente si falla, porque el comentario de devm_kmalloc() dice \"La memoria asignada con esta funci\u00f3n se libera autom\u00e1ticamente al desconectar el controlador\"."
}
],
"id": "CVE-2021-47651",
"lastModified": "2025-03-18T19:10:27.733",
"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"
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"published": "2025-02-26T06:37:06.880",
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"vulnStatus": "Analyzed",
"weaknesses": [
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"lang": "en",
"value": "CWE-476"
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],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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