CVE-2026-93052 (GCVE-0-2026-93052)
Vulnerability from cvelistv5 – Published: 2026-09-17 16:10 – Updated: 2026-09-17 16:10
VLAI
EPSS
VEX
Title
misc: bcm-vk: Use acquire/release for msgq_inited
Summary
In the Linux kernel, the following vulnerability has been resolved:
misc: bcm-vk: Use acquire/release for msgq_inited
bcm_vk_sync_msgq() fills the message queue information and then sets
msgq_inited. Readers call bcm_vk_drv_access_ok() before accessing the
message queues and their cached queue information.
atomic_set()/atomic_read() do not order those accesses. A reader can see
msgq_inited set while still seeing stale queue information. Use release
when publishing the initialized queues and acquire when checking the gate.
Keep the clear in bcm_vk_blk_drv_access() as atomic_set(). It closes the
gate and does not publish queue state to readers.
Severity
No CVSS data available.
Assigner
References
7 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
111d746bb4767ad476f80fe49067e3df3d9a9375 , < bab66a9e30e39a06f3463b19f8c704386dfd5268
(git)
Affected: 111d746bb4767ad476f80fe49067e3df3d9a9375 , < 679cfada6868723ccf162ec3b78c7402ff2405bf (git) Affected: 111d746bb4767ad476f80fe49067e3df3d9a9375 , < f7a8f4cbc8cede0be55220367dc52b126e2d39e5 (git) Affected: 111d746bb4767ad476f80fe49067e3df3d9a9375 , < 1df3926ed8771edf286ff753428b243f334e6041 (git) Affected: 111d746bb4767ad476f80fe49067e3df3d9a9375 , < a45d6dd3c11e921882a2e74c7c8710b975f2eaa7 (git) Affected: 111d746bb4767ad476f80fe49067e3df3d9a9375 , < 4984277bc43f84d7506346a09b29af138246d54a (git) Affected: 111d746bb4767ad476f80fe49067e3df3d9a9375 , < 61b101c6a150057b6d512421ed108aed16e822ea (git) |
guessed | |
| Linux | Linux |
Affected:
5.12
Unaffected: 0 , < 5.12 (semver) Unaffected: 5.15.221 , ≤ 5.15.* (semver) Unaffected: 6.1.188 , ≤ 6.1.* (semver) Unaffected: 6.6.157 , ≤ 6.6.* (semver) Unaffected: 6.12.110 , ≤ 6.12.* (semver) Unaffected: 6.18.52 , ≤ 6.18.* (semver) Unaffected: 7.2.6 , ≤ 7.2.* (semver) Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix) |
guessed |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/misc/bcm-vk/bcm_vk_msg.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "bab66a9e30e39a06f3463b19f8c704386dfd5268",
"status": "affected",
"version": "111d746bb4767ad476f80fe49067e3df3d9a9375",
"versionType": "git"
},
{
"lessThan": "679cfada6868723ccf162ec3b78c7402ff2405bf",
"status": "affected",
"version": "111d746bb4767ad476f80fe49067e3df3d9a9375",
"versionType": "git"
},
{
"lessThan": "f7a8f4cbc8cede0be55220367dc52b126e2d39e5",
"status": "affected",
"version": "111d746bb4767ad476f80fe49067e3df3d9a9375",
"versionType": "git"
},
{
"lessThan": "1df3926ed8771edf286ff753428b243f334e6041",
"status": "affected",
"version": "111d746bb4767ad476f80fe49067e3df3d9a9375",
"versionType": "git"
},
{
"lessThan": "a45d6dd3c11e921882a2e74c7c8710b975f2eaa7",
"status": "affected",
"version": "111d746bb4767ad476f80fe49067e3df3d9a9375",
"versionType": "git"
},
{
"lessThan": "4984277bc43f84d7506346a09b29af138246d54a",
"status": "affected",
"version": "111d746bb4767ad476f80fe49067e3df3d9a9375",
"versionType": "git"
},
{
"lessThan": "61b101c6a150057b6d512421ed108aed16e822ea",
"status": "affected",
"version": "111d746bb4767ad476f80fe49067e3df3d9a9375",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/misc/bcm-vk/bcm_vk_msg.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.12"
},
{
"lessThan": "5.12",
"status": "unaffected",
"version": "0",
"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": "6.12.110",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.52",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.2.*",
"status": "unaffected",
"version": "7.2.6",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.3-rc1",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.221",
"versionStartIncluding": "5.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.188",
"versionStartIncluding": "5.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.157",
"versionStartIncluding": "5.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.110",
"versionStartIncluding": "5.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18.52",
"versionStartIncluding": "5.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.2.6",
"versionStartIncluding": "5.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.3-rc1",
"versionStartIncluding": "5.12",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmisc: bcm-vk: Use acquire/release for msgq_inited\n\nbcm_vk_sync_msgq() fills the message queue information and then sets\nmsgq_inited. Readers call bcm_vk_drv_access_ok() before accessing the\nmessage queues and their cached queue information.\n\natomic_set()/atomic_read() do not order those accesses. A reader can see\nmsgq_inited set while still seeing stale queue information. Use release\nwhen publishing the initialized queues and acquire when checking the gate.\n\nKeep the clear in bcm_vk_blk_drv_access() as atomic_set(). It closes the\ngate and does not publish queue state to readers."
}
],
"providerMetadata": {
"dateUpdated": "2026-09-17T16:10:41.716Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/bab66a9e30e39a06f3463b19f8c704386dfd5268"
},
{
"url": "https://git.kernel.org/stable/c/679cfada6868723ccf162ec3b78c7402ff2405bf"
},
{
"url": "https://git.kernel.org/stable/c/f7a8f4cbc8cede0be55220367dc52b126e2d39e5"
},
{
"url": "https://git.kernel.org/stable/c/1df3926ed8771edf286ff753428b243f334e6041"
},
{
"url": "https://git.kernel.org/stable/c/a45d6dd3c11e921882a2e74c7c8710b975f2eaa7"
},
{
"url": "https://git.kernel.org/stable/c/4984277bc43f84d7506346a09b29af138246d54a"
},
{
"url": "https://git.kernel.org/stable/c/61b101c6a150057b6d512421ed108aed16e822ea"
}
],
"title": "misc: bcm-vk: Use acquire/release for msgq_inited",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-93052",
"datePublished": "2026-09-17T16:10:41.716Z",
"dateReserved": "2026-09-17T15:57:05.658Z",
"dateUpdated": "2026-09-17T16:10:41.716Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/misc/bcm-vk/bcm_vk_msg.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "bab66a9e30e39a06f3463b19f8c704386dfd5268",
"status": "affected",
"version": "111d746bb4767ad476f80fe49067e3df3d9a9375",
"versionType": "git"
},
{
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"versionType": "git"
},
{
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"versionType": "git"
},
{
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"versionType": "git"
},
{
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"version": "111d746bb4767ad476f80fe49067e3df3d9a9375",
"versionType": "git"
},
{
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"status": "affected",
"version": "111d746bb4767ad476f80fe49067e3df3d9a9375",
"versionType": "git"
},
{
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"status": "affected",
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"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/misc/bcm-vk/bcm_vk_msg.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.12"
},
{
"lessThan": "5.12",
"status": "unaffected",
"version": "0",
"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": "6.12.110",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.52",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.2.*",
"status": "unaffected",
"version": "7.2.6",
"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\nmisc: bcm-vk: Use acquire/release for msgq_inited\n\nbcm_vk_sync_msgq() fills the message queue information and then sets\nmsgq_inited. Readers call bcm_vk_drv_access_ok() before accessing the\nmessage queues and their cached queue information.\n\natomic_set()/atomic_read() do not order those accesses. A reader can see\nmsgq_inited set while still seeing stale queue information. Use release\nwhen publishing the initialized queues and acquire when checking the gate.\n\nKeep the clear in bcm_vk_blk_drv_access() as atomic_set(). It closes the\ngate and does not publish queue state to readers."
}
],
"id": "CVE-2026-93052",
"lastModified": "2026-09-17T17:17:58.657",
"metrics": {},
"published": "2026-09-17T17:17:58.657",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/1df3926ed8771edf286ff753428b243f334e6041"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/4984277bc43f84d7506346a09b29af138246d54a"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/61b101c6a150057b6d512421ed108aed16e822ea"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/679cfada6868723ccf162ec3b78c7402ff2405bf"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/a45d6dd3c11e921882a2e74c7c8710b975f2eaa7"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/bab66a9e30e39a06f3463b19f8c704386dfd5268"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/f7a8f4cbc8cede0be55220367dc52b126e2d39e5"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Received"
}
},
"suse_vex": {
"aggregate_severity": "not set",
"current_release_date": "2026-09-18T00:12:53Z",
"cve": "CVE-2026-93052",
"id": "CVE-2026-93052",
"initial_release_date": "2026-09-18T00:12:53Z",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2026-93052",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-93052.json",
"version": "2"
}
}
}
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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
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