FKIE_CVE-2026-80547
Vulnerability from fkie_nvd - Published: 2026-08-26 15:17 - Updated: 2026-08-27 13:18
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
s390/vfio_ccw: Implement a crw lock
Unlike the channel_program struct, which covers synchronous I/O
submissions and asynchronous interrupts, the CRW region relies
exclusively on asynchronous events coming from hardware.
Implement a lock to manage the list of those payloads, to ensure
they are read cohesively.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/s390/cio/vfio_ccw_chp.c",
"drivers/s390/cio/vfio_ccw_drv.c",
"drivers/s390/cio/vfio_ccw_ops.c",
"drivers/s390/cio/vfio_ccw_private.h"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "3c94d4179bcc19e01b28db634c07a58b28116209",
"status": "affected",
"version": "3f02cb2fd9d2d9e8762102886e3e4b51285797ee",
"versionType": "git"
},
{
"lessThan": "0edd222730a9d7ec98368aaf1d40ee2d8d862e61",
"status": "affected",
"version": "3f02cb2fd9d2d9e8762102886e3e4b51285797ee",
"versionType": "git"
},
{
"lessThan": "a3d60ae24183eee352c8e87a0ff94c97cd87f156",
"status": "affected",
"version": "3f02cb2fd9d2d9e8762102886e3e4b51285797ee",
"versionType": "git"
},
{
"lessThan": "49fa26b0df009dc1f420980bd71780e70615b83b",
"status": "affected",
"version": "3f02cb2fd9d2d9e8762102886e3e4b51285797ee",
"versionType": "git"
},
{
"lessThan": "7902be374cbfc11c3435e1e87bf22195bf06a558",
"status": "affected",
"version": "3f02cb2fd9d2d9e8762102886e3e4b51285797ee",
"versionType": "git"
},
{
"lessThan": "c76c4ee72bfc3824f4f491f18ed0323bf2e2daf9",
"status": "affected",
"version": "3f02cb2fd9d2d9e8762102886e3e4b51285797ee",
"versionType": "git"
},
{
"lessThan": "16b0798024c0e9117e395829ddbbe70981c79d9c",
"status": "affected",
"version": "3f02cb2fd9d2d9e8762102886e3e4b51285797ee",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/s390/cio/vfio_ccw_chp.c",
"drivers/s390/cio/vfio_ccw_drv.c",
"drivers/s390/cio/vfio_ccw_ops.c",
"drivers/s390/cio/vfio_ccw_private.h"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.8"
},
{
"lessThan": "5.8",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.218",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.185",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.154",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.105",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.46",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.1.*",
"status": "unaffected",
"version": "7.1.10",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.2",
"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\ns390/vfio_ccw: Implement a crw lock\n\nUnlike the channel_program struct, which covers synchronous I/O\nsubmissions and asynchronous interrupts, the CRW region relies\nexclusively on asynchronous events coming from hardware.\n\nImplement a lock to manage the list of those payloads, to ensure\nthey are read cohesively."
}
],
"id": "CVE-2026-80547",
"lastModified": "2026-08-27T13:18:39.240",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.0,
"impactScore": 6.0,
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"type": "Secondary"
}
]
},
"published": "2026-08-26T15:17:09.087",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/0edd222730a9d7ec98368aaf1d40ee2d8d862e61"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/16b0798024c0e9117e395829ddbbe70981c79d9c"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/3c94d4179bcc19e01b28db634c07a58b28116209"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/49fa26b0df009dc1f420980bd71780e70615b83b"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/7902be374cbfc11c3435e1e87bf22195bf06a558"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/a3d60ae24183eee352c8e87a0ff94c97cd87f156"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/c76c4ee72bfc3824f4f491f18ed0323bf2e2daf9"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Received"
}
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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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