FKIE_CVE-2026-72282
Vulnerability from fkie_nvd - Published: 2026-08-15 06:21 - Updated: 2026-08-17 06:18
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
KVM: Move kvm_io_bus_get_dev() locking responsibilities to callers
kvm_io_bus_get_dev() returns a device that is only matched by the
address, and nothing else. This can cause a lifetime issue if
the matched device is not the expected type, as by the time
the caller can introspect the object, it might be gone (the srcu
lock having been dropped).
Given that there is only a single user of this helper, the simplest
option is to move the locking responsibility to the caller, which
can keep the srcu lock held for as long as it wants.
Note that this aligns with other kvm_io_bus*() helpers, which
already require the srcu lock to be held by the callers.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"arch/arm64/kvm/vgic/vgic-its.c",
"virt/kvm/kvm_main.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "f398b7d92cd999191249830b9171c9bd787a9a91",
"status": "affected",
"version": "8a39d00670f0792c1186e442e1dd28fe0326f2ee",
"versionType": "git"
},
{
"lessThan": "1b4a3c2f0509e7b0e65667f3c36676a849ee2755",
"status": "affected",
"version": "8a39d00670f0792c1186e442e1dd28fe0326f2ee",
"versionType": "git"
},
{
"lessThan": "cfe107b02a3c3f049e0dc15b6a36625f048eda2a",
"status": "affected",
"version": "8a39d00670f0792c1186e442e1dd28fe0326f2ee",
"versionType": "git"
},
{
"lessThan": "90d35d2b8e47afd68fe2a4dd0eeb60bc71641775",
"status": "affected",
"version": "8a39d00670f0792c1186e442e1dd28fe0326f2ee",
"versionType": "git"
},
{
"lessThan": "e01071ea006c9b952125ed8b0cc90ac7bd356cce",
"status": "affected",
"version": "8a39d00670f0792c1186e442e1dd28fe0326f2ee",
"versionType": "git"
},
{
"lessThan": "7099e7148f81c605bbc319b16ce0131540341560",
"status": "affected",
"version": "8a39d00670f0792c1186e442e1dd28fe0326f2ee",
"versionType": "git"
},
{
"lessThan": "0cbae0e296d27ce4c4cce83e34d40c2bfd8133aa",
"status": "affected",
"version": "8a39d00670f0792c1186e442e1dd28fe0326f2ee",
"versionType": "git"
},
{
"lessThan": "3a07249981629ace483ebbef81ef6b34c2d2afec",
"status": "affected",
"version": "8a39d00670f0792c1186e442e1dd28fe0326f2ee",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"arch/arm64/kvm/vgic/vgic-its.c",
"virt/kvm/kvm_main.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "4.8"
},
{
"lessThan": "4.8",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.261",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.212",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.178",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.145",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.97",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.40",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.1.*",
"status": "unaffected",
"version": "7.1.5",
"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\nKVM: Move kvm_io_bus_get_dev() locking responsibilities to callers\n\nkvm_io_bus_get_dev() returns a device that is only matched by the\naddress, and nothing else. This can cause a lifetime issue if\nthe matched device is not the expected type, as by the time\nthe caller can introspect the object, it might be gone (the srcu\nlock having been dropped).\n\nGiven that there is only a single user of this helper, the simplest\noption is to move the locking responsibility to the caller, which\ncan keep the srcu lock held for as long as it wants.\n\nNote that this aligns with other kvm_io_bus*() helpers, which\nalready require the srcu lock to be held by the callers."
}
],
"id": "CVE-2026-72282",
"lastModified": "2026-08-17T06:18:30.800",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"type": "Secondary"
}
]
},
"published": "2026-08-15T06:21:58.680",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/0cbae0e296d27ce4c4cce83e34d40c2bfd8133aa"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/1b4a3c2f0509e7b0e65667f3c36676a849ee2755"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/3a07249981629ace483ebbef81ef6b34c2d2afec"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/7099e7148f81c605bbc319b16ce0131540341560"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/90d35d2b8e47afd68fe2a4dd0eeb60bc71641775"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/cfe107b02a3c3f049e0dc15b6a36625f048eda2a"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/e01071ea006c9b952125ed8b0cc90ac7bd356cce"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/f398b7d92cd999191249830b9171c9bd787a9a91"
}
],
"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.
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.
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