FKIE_CVE-2026-81017
Vulnerability from fkie_nvd - Published: 2026-09-11 20:19 - Updated: 2026-09-14 13:18
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
platform/chrome: sensorhub: Bound the EC-reported sensor number
Each EC FIFO event carries an 8-bit sensor number (in->sensor_num).
cros_ec_sensorhub_ring_handler() validates the FIFO event count, the
per-read count and the ring bound, but not the sensor number, which
cros_ec_sensor_ring_process_event() then uses unchecked to index
sensorhub->batch_state[] - allocated with only sensorhub->sensor_num
entries. A sensor number of sensor_num or larger is an out-of-bounds
read and write of batch_state[].
Validate the sensor number in the ring handler, where each event is read
from the EC, and drop a malformed event before it is used.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/platform/chrome/cros_ec_sensorhub_ring.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "3a76b87e1d065183e2e7ae5b800cb1f6e84f543d",
"status": "affected",
"version": "145d59baff5944b71551ac518d7fd7d377a9c820",
"versionType": "git"
},
{
"lessThan": "2b602ecf6193ecb9720c78b6728d7e09370b1ff1",
"status": "affected",
"version": "145d59baff5944b71551ac518d7fd7d377a9c820",
"versionType": "git"
},
{
"lessThan": "324880f94ba3c6269a607e04f78a4dd4a66b3f53",
"status": "affected",
"version": "145d59baff5944b71551ac518d7fd7d377a9c820",
"versionType": "git"
},
{
"lessThan": "d1b4add68dabfdd6481a4fa198bf3b473d2634d7",
"status": "affected",
"version": "145d59baff5944b71551ac518d7fd7d377a9c820",
"versionType": "git"
},
{
"lessThan": "3d2636dce0a8fe9eecad29010699847be425dc80",
"status": "affected",
"version": "145d59baff5944b71551ac518d7fd7d377a9c820",
"versionType": "git"
},
{
"lessThan": "5eaf7faa99578ae090030d1e2e6ea3b37a615496",
"status": "affected",
"version": "145d59baff5944b71551ac518d7fd7d377a9c820",
"versionType": "git"
},
{
"lessThan": "4d9bf63ed74f859c6698bc01d8fb216ef9253867",
"status": "affected",
"version": "145d59baff5944b71551ac518d7fd7d377a9c820",
"versionType": "git"
},
{
"lessThan": "833740a2333c2e4db4e02e3d0ffba04e8718a5f3",
"status": "affected",
"version": "145d59baff5944b71551ac518d7fd7d377a9c820",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/platform/chrome/cros_ec_sensorhub_ring.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.7"
},
{
"lessThan": "5.7",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.270",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.221",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.188",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.157",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.109",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.50",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.2.*",
"status": "unaffected",
"version": "7.2.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.3-rc1",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/chrome: sensorhub: Bound the EC-reported sensor number\n\nEach EC FIFO event carries an 8-bit sensor number (in-\u003esensor_num).\ncros_ec_sensorhub_ring_handler() validates the FIFO event count, the\nper-read count and the ring bound, but not the sensor number, which\ncros_ec_sensor_ring_process_event() then uses unchecked to index\nsensorhub-\u003ebatch_state[] - allocated with only sensorhub-\u003esensor_num\nentries. A sensor number of sensor_num or larger is an out-of-bounds\nread and write of batch_state[].\n\nValidate the sensor number in the ring handler, where each event is read\nfrom the EC, and drop a malformed event before it is used."
}
],
"id": "CVE-2026-81017",
"lastModified": "2026-09-14T13:18:55.973",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 8.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.5,
"impactScore": 5.9,
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"type": "Secondary"
}
]
},
"published": "2026-09-11T20:19:10.680",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/2b602ecf6193ecb9720c78b6728d7e09370b1ff1"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/324880f94ba3c6269a607e04f78a4dd4a66b3f53"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/3a76b87e1d065183e2e7ae5b800cb1f6e84f543d"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/3d2636dce0a8fe9eecad29010699847be425dc80"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/4d9bf63ed74f859c6698bc01d8fb216ef9253867"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/5eaf7faa99578ae090030d1e2e6ea3b37a615496"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/833740a2333c2e4db4e02e3d0ffba04e8718a5f3"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/d1b4add68dabfdd6481a4fa198bf3b473d2634d7"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Received"
}
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…