360 lines
18 KiB
JSON
360 lines
18 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2026-45862",
|
|
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "Linux",
|
|
"dateReserved": "2026-05-13T15:03:33.080Z",
|
|
"datePublished": "2026-05-27T12:15:41.903Z",
|
|
"dateUpdated": "2026-10-19T19:26:39.041Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"providerMetadata": {
|
|
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"shortName": "Linux",
|
|
"dateUpdated": "2026-08-05T12:28:37.806Z"
|
|
},
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/vt-d: Flush cache for PASID table before using it\n\nWhen writing the address of a freshly allocated zero-initialized PASID\ntable to a PASID directory entry, do that after the CPU cache flush for\nthis PASID table, not before it, to avoid the time window when this\nPASID table may be already used by non-coherent IOMMU hardware while\nits contents in RAM is still some random old data, not zero-initialized."
|
|
}
|
|
],
|
|
"metrics": [
|
|
{
|
|
"cvssV3_1": {
|
|
"version": "3.1",
|
|
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
|
|
"baseScore": 7.8,
|
|
"baseSeverity": "HIGH"
|
|
},
|
|
"scenarios": [
|
|
{
|
|
"lang": "en",
|
|
"value": "AV:L - The vulnerable PASID-table allocation is reached locally via IOMMU domain attach (SVA bind through an accelerator device, or guest/IOMMUFD device setup) using syscalls/ioctls; there is no network-facing path to this code.\nAC:H - Exploitation requires non-coherent VT-d hardware and winning a nanosecond-scale cache-writeback race in which the IOMMU must read the entry before the CPU flushes the zeroes to RAM, with the stale data happening to form a usable present entry — conditions governed by microarchitectural timing the attacker cannot control.\nPR:L - An unprivileged local user with access to an SVA-capable accelerator device can drive `iommu_sva_bind_device` to trigger the PASID-table allocation while controlling the device's DMA; no real root is required.\nUI:N - The allocation and the device DMA are driven entirely by the attacker; no victim interaction is needed.\nS:C - The IOMMU enforces the DMA isolation boundary; using stale garbage PASID entries lets a device's DMA escape its assigned domain, impacting host physical memory in a different security authority — an IOMMU/DMA boundary bypass.\nC:H - A misdirected DMA translated through a garbage page table can read arbitrary host physical memory, yielding disclosure beyond the device's domain.\nI:H - The same misdirected DMA path provides write access to arbitrary host physical memory, allowing corruption of kernel data outside the device's intended domain.\nA:H - Garbage PASID entries can cause IOMMU faults, DMA failures, and memory corruption leading to oops/panic or device/system hangs."
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"affected": [
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "unaffected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"drivers/iommu/intel/pasid.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "7e00b52c8cdd9d3a985d63d72ecae7bde6314883",
|
|
"lessThan": "cd75e77125c8a51754ca4cd60b4ca083ed735d1d",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "5c65f097124770c3e5b9b83ed1a8b68c119bc7b5",
|
|
"lessThan": "0616137b70e6d9a547d4b60df8e1b64e36d83661",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "2bed9455db7cc0ab7ece6b3d846472097b52855a",
|
|
"lessThan": "36990407cdd257473607e33802d00e978af2759e",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "194b3348bdbb7db65375c72f3f774aee4cc6614e",
|
|
"lessThan": "c93f23375d8c410954b0df825e814b632fd62b9d",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "194b3348bdbb7db65375c72f3f774aee4cc6614e",
|
|
"lessThan": "5962c30a6f05ea1ab73f039e235bb30716243517",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "194b3348bdbb7db65375c72f3f774aee4cc6614e",
|
|
"lessThan": "36244dfd3853f7bf89d03b8e90d56b23ce7fbc16",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "194b3348bdbb7db65375c72f3f774aee4cc6614e",
|
|
"lessThan": "d15cda135148ea7ba929cfdbcf208182bc29a7aa",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "194b3348bdbb7db65375c72f3f774aee4cc6614e",
|
|
"lessThan": "22d169bdd2849fe6bd18c2643742e1c02be6451c",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "1b48c70feefc499b62670521efa002ab01e05df5",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "bc348a6cc8f92e9979fbfbb3c6b48fd51b4b1dbf",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "5.10.175",
|
|
"lessThan": "5.10.252",
|
|
"status": "affected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.15.103",
|
|
"lessThan": "5.15.202",
|
|
"status": "affected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.1.16",
|
|
"lessThan": "6.1.165",
|
|
"status": "affected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.4.237",
|
|
"lessThan": "5.5",
|
|
"status": "affected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.2.3",
|
|
"lessThan": "6.3",
|
|
"status": "affected",
|
|
"versionType": "semver"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "affected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"drivers/iommu/intel/pasid.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "6.3",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "0",
|
|
"lessThan": "6.3",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.10.252",
|
|
"lessThanOrEqual": "5.10.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.15.202",
|
|
"lessThanOrEqual": "5.15.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.1.165",
|
|
"lessThanOrEqual": "6.1.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.6.128",
|
|
"lessThanOrEqual": "6.6.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.12.75",
|
|
"lessThanOrEqual": "6.12.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.18.14",
|
|
"lessThanOrEqual": "6.18.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.19.4",
|
|
"lessThanOrEqual": "6.19.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "7.0",
|
|
"lessThanOrEqual": "*",
|
|
"status": "unaffected",
|
|
"versionType": "original_commit_for_fix"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"cpeApplicability": [
|
|
{
|
|
"nodes": [
|
|
{
|
|
"operator": "OR",
|
|
"negate": false,
|
|
"cpeMatch": [
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.10.175",
|
|
"versionEndExcluding": "5.10.252"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.15.103",
|
|
"versionEndExcluding": "5.15.202"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "6.1.16",
|
|
"versionEndExcluding": "6.1.165"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "6.3",
|
|
"versionEndExcluding": "6.6.128"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "6.3",
|
|
"versionEndExcluding": "6.12.75"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "6.3",
|
|
"versionEndExcluding": "6.18.14"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "6.3",
|
|
"versionEndExcluding": "6.19.4"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "6.3",
|
|
"versionEndExcluding": "7.0"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.4.237"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "6.2.3"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/cd75e77125c8a51754ca4cd60b4ca083ed735d1d"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/0616137b70e6d9a547d4b60df8e1b64e36d83661"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/36990407cdd257473607e33802d00e978af2759e"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/c93f23375d8c410954b0df825e814b632fd62b9d"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/5962c30a6f05ea1ab73f039e235bb30716243517"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/36244dfd3853f7bf89d03b8e90d56b23ce7fbc16"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/d15cda135148ea7ba929cfdbcf208182bc29a7aa"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/22d169bdd2849fe6bd18c2643742e1c02be6451c"
|
|
}
|
|
],
|
|
"title": "iommu/vt-d: Flush cache for PASID table before using it",
|
|
"x_generator": {
|
|
"engine": "bippy-1.2.0"
|
|
}
|
|
},
|
|
"adp": [
|
|
{
|
|
"metrics": [
|
|
{
|
|
"other": {
|
|
"type": "ssvc",
|
|
"content": {
|
|
"id": "CVE-2026-45862",
|
|
"role": "CISA Coordinator",
|
|
"options": [
|
|
{
|
|
"Exploitation": "none"
|
|
},
|
|
{
|
|
"Automatable": "no"
|
|
},
|
|
{
|
|
"Technical Impact": "total"
|
|
}
|
|
],
|
|
"version": "2.0.3",
|
|
"timestamp": "2026-10-16T15:18:13.638562Z"
|
|
}
|
|
}
|
|
}
|
|
],
|
|
"problemTypes": [
|
|
{
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"type": "CWE",
|
|
"cweId": "CWE-362",
|
|
"description": "CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"title": "CISA ADP Vulnrichment",
|
|
"providerMetadata": {
|
|
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
|
|
"shortName": "CISA-ADP",
|
|
"dateUpdated": "2026-10-19T19:26:39.041Z"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
} |