CVE-2026-68181 (GCVE-0-2026-68181)
Vulnerability from cvelistv5 – Published: 2026-08-10 11:59 – Updated: 2026-08-23 12:46
VLAI
EPSS
VEX
Title
mei: bus: access mei_device under device_lock on cleanup
Summary
In the Linux kernel, the following vulnerability has been resolved:
mei: bus: access mei_device under device_lock on cleanup
Fix couple of problems in mei_cl_bus_dev_release():
mei_cl_flush_queues() is running without lock.
bus->file_list access after mei_dev_bus_put(bus) can become a
use-after-free if this was the last reference to bus.
Protect queues cleanup and WARN traversal by device lock there
to avoid the concurrent access problems.
Move WARN traversal before mei_dev_bus_put(bus).
This file uses bus variable name for mei_device, adjust
code of mei_cl_bus_dev_release() to use bus variable too.
Severity
No CVSS data available.
Assigner
References
6 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
6f2a6ef86b23a30b92ad57981de537bce67bfa45 , < 02e3a755086db847d795f2593ebc45e8ee4f1755
(git)
Affected: 24f4ceeaeee7983c07590149556a0e33efe2ec90 , < 441559d4c595f839b39f0ab6a4ae628427c2fd9e (git) Affected: 612c8d21ce6e37b73f3106aec7ffa35959d40261 , < c88c030a324c9018b77894a19b2564eb66862020 (git) Affected: 35e8a426b16adbecae7a4e0e3c00fc8d0273db53 , < 59dd34854202d9a3faaa87a85205e553fe7150e1 (git) Affected: 35e8a426b16adbecae7a4e0e3c00fc8d0273db53 , < 7cf79e8d682fe93777268f029668ce5e214237fd (git) Affected: 35e8a426b16adbecae7a4e0e3c00fc8d0273db53 , < f112ea910e554d58b4b39a4492b7d302f0f4204f (git) Affected: 2f29dce5a5ae06a7db32e4491d72269329a86eeb (git) Affected: 28de6ca5276a94b0589ae1bf026b89fa0eaf14c0 (git) Affected: 6.1.149 , < 6.1.184 (semver) Affected: 6.6.103 , < 6.6.148 (semver) Affected: 6.12.43 , < 6.12.101 (semver) Affected: 6.15.11 , < 6.16 (semver) Affected: 6.16.2 , < 6.17 (semver) |
guessed | |
| Linux | Linux |
Affected:
6.17
Unaffected: 0 , < 6.17 (semver) Unaffected: 6.1.184 , ≤ 6.1.* (semver) Unaffected: 6.6.148 , ≤ 6.6.* (semver) Unaffected: 6.12.101 , ≤ 6.12.* (semver) Unaffected: 6.18.42 , ≤ 6.18.* (semver) Unaffected: 7.1.6 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix) |
guessed |
{
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],
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"vendor": "Linux",
"versions": [
{
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"version": "6.17"
},
{
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"version": "0",
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},
{
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},
{
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"versionType": "semver"
},
{
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"versionType": "semver"
},
{
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"version": "6.18.42",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.1.*",
"status": "unaffected",
"version": "7.1.6",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
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"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmei: bus: access mei_device under device_lock on cleanup\n\nFix couple of problems in mei_cl_bus_dev_release():\n\nmei_cl_flush_queues() is running without lock.\nbus-\u003efile_list access after mei_dev_bus_put(bus) can become a\nuse-after-free if this was the last reference to bus.\n\nProtect queues cleanup and WARN traversal by device lock there\nto avoid the concurrent access problems.\nMove WARN traversal before mei_dev_bus_put(bus).\n\nThis file uses bus variable name for mei_device, adjust\ncode of mei_cl_bus_dev_release() to use bus variable too."
}
],
"providerMetadata": {
"dateUpdated": "2026-08-23T12:46:04.934Z",
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},
{
"url": "https://git.kernel.org/stable/c/f112ea910e554d58b4b39a4492b7d302f0f4204f"
}
],
"title": "mei: bus: access mei_device under device_lock on cleanup",
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"datePublished": "2026-08-10T11:59:52.724Z",
"dateReserved": "2026-07-30T09:28:09.373Z",
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"state": "PUBLISHED"
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]
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],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmei: bus: access mei_device under device_lock on cleanup\n\nFix couple of problems in mei_cl_bus_dev_release():\n\nmei_cl_flush_queues() is running without lock.\nbus-\u003efile_list access after mei_dev_bus_put(bus) can become a\nuse-after-free if this was the last reference to bus.\n\nProtect queues cleanup and WARN traversal by device lock there\nto avoid the concurrent access problems.\nMove WARN traversal before mei_dev_bus_put(bus).\n\nThis file uses bus variable name for mei_device, adjust\ncode of mei_cl_bus_dev_release() to use bus variable too."
}
],
"id": "CVE-2026-68181",
"lastModified": "2026-08-23T13:16:34.900",
"metrics": {},
"published": "2026-08-10T13:20:05.110",
"references": [
{
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],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Received"
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-08-11T11:50:11+00:00",
"cve": "CVE-2026-68181",
"id": "CVE-2026-68181",
"initial_release_date": "2026-08-10T00:00:00+00:00",
"product_status:known_affected": "184",
"product_status:known_not_affected": "90",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: mei: bus: access mei_device under device_lock on cleanup",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-68181.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-10-03T00:38:30Z",
"cve": "CVE-2026-68181",
"id": "CVE-2026-68181",
"initial_release_date": "2026-08-13T16:23:27Z",
"product_status:known_affected": "426",
"product_status:known_not_affected": "307",
"product_status:recommended": "252",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2026-68181",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-68181.json",
"version": "10"
}
}
}
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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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