CVE-2026-46174 (GCVE-0-2026-46174)
Vulnerability from cvelistv5
Published
2026-05-28 09:36
Modified
2026-05-30 10:48
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache
Make sure resources are not improperly shared in the op cache and
cause instruction corruption this way.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 Version: f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 Version: f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 Version: f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 Version: f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 Version: f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 Version: f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 Version: f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9 Version: 5abd1583e06b3963e5c9d915760367de86808b78 Version: 4ba461d426490b6ed7e8298c4d3b7a13aa5d2686 Version: 5a63725cd18fcee2af6ec46ccb856b64ad3077b4 Version: 3.16.58 ≤ Version: 4.4.144 ≤ Version: 4.9.102 ≤ |
||
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"arch/x86/include/asm/msr-index.h",
"arch/x86/kernel/cpu/amd.c",
"tools/arch/x86/include/asm/msr-index.h"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
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"status": "affected",
"version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9",
"versionType": "git"
},
{
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"status": "affected",
"version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9",
"versionType": "git"
},
{
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"status": "affected",
"version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9",
"versionType": "git"
},
{
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"status": "affected",
"version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9",
"versionType": "git"
},
{
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"status": "affected",
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"versionType": "git"
},
{
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"status": "affected",
"version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9",
"versionType": "git"
},
{
"lessThan": "1cd85a19748b2407830376a5cbae5c0f126016e5",
"status": "affected",
"version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9",
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},
{
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"status": "affected",
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"versionType": "git"
},
{
"status": "affected",
"version": "5abd1583e06b3963e5c9d915760367de86808b78",
"versionType": "git"
},
{
"status": "affected",
"version": "4ba461d426490b6ed7e8298c4d3b7a13aa5d2686",
"versionType": "git"
},
{
"status": "affected",
"version": "5a63725cd18fcee2af6ec46ccb856b64ad3077b4",
"versionType": "git"
},
{
"lessThan": "3.17",
"status": "affected",
"version": "3.16.58",
"versionType": "semver"
},
{
"lessThan": "4.5",
"status": "affected",
"version": "4.4.144",
"versionType": "semver"
},
{
"lessThan": "4.10",
"status": "affected",
"version": "4.9.102",
"versionType": "semver"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"arch/x86/include/asm/msr-index.h",
"arch/x86/kernel/cpu/amd.c",
"tools/arch/x86/include/asm/msr-index.h"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "4.14"
},
{
"lessThan": "4.14",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.256",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.207",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.173",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.139",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.88",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.30",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.0.*",
"status": "unaffected",
"version": "7.0.7",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.1-rc4",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.256",
"versionStartIncluding": "4.14",
"vulnerable": true
},
{
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},
{
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"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"vulnerable": true
},
{
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"versionStartIncluding": "4.14",
"vulnerable": true
},
{
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"versionEndExcluding": "6.18.30",
"versionStartIncluding": "4.14",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.0.7",
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"vulnerable": true
},
{
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"versionEndExcluding": "7.1-rc4",
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},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.16.58",
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},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.4.144",
"vulnerable": true
},
{
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"versionStartIncluding": "4.9.102",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/CPU/AMD: Prevent improper isolation of shared resources in Zen2\u0027s op cache\n\nMake sure resources are not improperly shared in the op cache and\ncause instruction corruption this way."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 8.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-30T10:48:38.525Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/1e23b30a80b14e5764657401ee2cca030525ae8e"
},
{
"url": "https://git.kernel.org/stable/c/f5bc3aef7df46eaaf423d7413ab8833f704ae576"
},
{
"url": "https://git.kernel.org/stable/c/251497955f2314cd39d43191e81c6151dead4c7b"
},
{
"url": "https://git.kernel.org/stable/c/ff6fc65b3bf73acc5ee71919154d830ad5431362"
},
{
"url": "https://git.kernel.org/stable/c/9109489cc8c34e50d15575a3d1ff82af586bc1aa"
},
{
"url": "https://git.kernel.org/stable/c/28f5ed477eef166d678d6966762cbc1de9b4f436"
},
{
"url": "https://git.kernel.org/stable/c/1cd85a19748b2407830376a5cbae5c0f126016e5"
},
{
"url": "https://git.kernel.org/stable/c/c21b90f77687075115d989e53a8ec5e2bb427ab1"
}
],
"title": "x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2\u0027s op cache",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-46174",
"datePublished": "2026-05-28T09:36:28.703Z",
"dateReserved": "2026-05-13T15:03:33.103Z",
"dateUpdated": "2026-05-30T10:48:38.525Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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