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iommu/vt-d: Flush cache for PASID table before using it

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Flush cache for PASID table before using it When writing the address of a freshly allocated zero-initialized PASID table to a PASID directory entry, do that after the CPU cache flush for this PASID table, not before it, to avoid the time window when this PASID table may be already used by non-coherent IOMMU hardware while its contents in RAM is still some random old data, not zero-initialized.

Announced Source revision 1
Original source ↗

CVE-2026-45862

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-45862

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "7e00b52c8cdd9d3a985d63d72ecae7bde6314883",
        "lessThan": "cd75e77125c8a51754ca4cd60b4ca083ed735d1d",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5c65f097124770c3e5b9b83ed1a8b68c119bc7b5",
        "lessThan": "0616137b70e6d9a547d4b60df8e1b64e36d83661",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "2bed9455db7cc0ab7ece6b3d846472097b52855a",
        "lessThan": "36990407cdd257473607e33802d00e978af2759e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "194b3348bdbb7db65375c72f3f774aee4cc6614e",
        "lessThan": "c93f23375d8c410954b0df825e814b632fd62b9d",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "194b3348bdbb7db65375c72f3f774aee4cc6614e",
        "lessThan": "5962c30a6f05ea1ab73f039e235bb30716243517",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "194b3348bdbb7db65375c72f3f774aee4cc6614e",
        "lessThan": "36244dfd3853f7bf89d03b8e90d56b23ce7fbc16",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "194b3348bdbb7db65375c72f3f774aee4cc6614e",
        "lessThan": "d15cda135148ea7ba929cfdbcf208182bc29a7aa",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "194b3348bdbb7db65375c72f3f774aee4cc6614e",
        "lessThan": "22d169bdd2849fe6bd18c2643742e1c02be6451c",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "1b48c70feefc499b62670521efa002ab01e05df5",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bc348a6cc8f92e9979fbfbb3c6b48fd51b4b1dbf",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5.10.175",
        "lessThan": "5.10.252",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "5.15.103",
        "lessThan": "5.15.202",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "6.1.16",
        "lessThan": "6.1.165",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "5.4.237",
        "lessThan": "5.5",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "6.2.3",
        "lessThan": "6.3",
        "versionType": "semver"
      }
    ],
    "programFiles": [
      "drivers/iommu/intel/pasid.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "6.3"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "6.3",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.252",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.202",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.165",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.128",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.75",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.14",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "6.19.4",
        "versionType": "semver",
        "lessThanOrEqual": "6.19.*"
      },
      {
        "status": "unaffected",
        "version": "7.0",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/iommu/intel/pasid.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-45862

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#40089 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement