GSD-2021-46979
Vulnerability from gsd - Updated: 2024-02-28 06:03Details
In the Linux kernel, the following vulnerability has been resolved:
iio: core: fix ioctl handlers removal
Currently ioctl handlers are removed twice. For the first time during
iio_device_unregister() then later on inside
iio_device_unregister_eventset() and iio_buffers_free_sysfs_and_mask().
Double free leads to kernel panic.
Fix this by not touching ioctl handlers list directly but rather
letting code responsible for registration call the matching cleanup
routine itself.
Aliases
{
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2021-46979"
],
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: core: fix ioctl handlers removal\n\nCurrently ioctl handlers are removed twice. For the first time during\niio_device_unregister() then later on inside\niio_device_unregister_eventset() and iio_buffers_free_sysfs_and_mask().\nDouble free leads to kernel panic.\n\nFix this by not touching ioctl handlers list directly but rather\nletting code responsible for registration call the matching cleanup\nroutine itself.",
"id": "GSD-2021-46979",
"modified": "2024-02-28T06:03:57.291701Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
"cve.org": {
"CVE_data_meta": {
"ASSIGNER": "cve@kernel.org",
"ID": "CVE-2021-46979",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Linux",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "8dedcc3eee3a",
"version_value": "11e1cae5da40"
},
{
"version_value": "not down converted",
"x_cve_json_5_version_data": {
"defaultStatus": "affected",
"versions": [
{
"status": "affected",
"version": "5.11"
},
{
"lessThan": "5.11",
"status": "unaffected",
"version": "0",
"versionType": "custom"
},
{
"lessThanOrEqual": "5.11.*",
"status": "unaffected",
"version": "5.11.22",
"versionType": "custom"
},
{
"lessThanOrEqual": "5.12.*",
"status": "unaffected",
"version": "5.12.5",
"versionType": "custom"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "5.13",
"versionType": "original_commit_for_fix"
}
]
}
}
]
}
}
]
},
"vendor_name": "Linux"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: core: fix ioctl handlers removal\n\nCurrently ioctl handlers are removed twice. For the first time during\niio_device_unregister() then later on inside\niio_device_unregister_eventset() and iio_buffers_free_sysfs_and_mask().\nDouble free leads to kernel panic.\n\nFix this by not touching ioctl handlers list directly but rather\nletting code responsible for registration call the matching cleanup\nroutine itself."
}
]
},
"generator": {
"engine": "bippy-1e70cc10feda"
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://git.kernel.org/stable/c/11e1cae5da4096552f7c091476cbadbc0d1817da",
"refsource": "MISC",
"url": "https://git.kernel.org/stable/c/11e1cae5da4096552f7c091476cbadbc0d1817da"
},
{
"name": "https://git.kernel.org/stable/c/ab6c935ba3a04317632f3b8b68675bdbaf395303",
"refsource": "MISC",
"url": "https://git.kernel.org/stable/c/ab6c935ba3a04317632f3b8b68675bdbaf395303"
},
{
"name": "https://git.kernel.org/stable/c/901f84de0e16bde10a72d7eb2f2eb73fcde8fa1a",
"refsource": "MISC",
"url": "https://git.kernel.org/stable/c/901f84de0e16bde10a72d7eb2f2eb73fcde8fa1a"
}
]
}
},
"nvd.nist.gov": {
"cve": {
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: core: fix ioctl handlers removal\n\nCurrently ioctl handlers are removed twice. For the first time during\niio_device_unregister() then later on inside\niio_device_unregister_eventset() and iio_buffers_free_sysfs_and_mask().\nDouble free leads to kernel panic.\n\nFix this by not touching ioctl handlers list directly but rather\nletting code responsible for registration call the matching cleanup\nroutine itself."
}
],
"id": "CVE-2021-46979",
"lastModified": "2024-02-28T14:06:45.783",
"metrics": {},
"published": "2024-02-28T09:15:37.230",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/11e1cae5da4096552f7c091476cbadbc0d1817da"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/901f84de0e16bde10a72d7eb2f2eb73fcde8fa1a"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/ab6c935ba3a04317632f3b8b68675bdbaf395303"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Awaiting Analysis"
}
}
}
}
Loading…
Loading…
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.
Loading…
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.
Loading…
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.
Loading…