{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-64151", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T07:54:57.037Z", "datePublished": "2026-07-19T15:40:40.643Z", "dateUpdated": "2026-07-19T15:40:40.643Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-07-19T15:40:40.643Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommupt: Check for missing PAGE_SIZE in the pgsize_bitmap\n\nSashiko pointed out that the driver could drop PAGE_SIZE from the\npgsize_bitmap. That is technically allowed but nothing does it, and\nsuch an iommu_domain would not be used with the DMA API today.\n\nStill, it is against the design and it is trivial to fix up. Lift\nthe PT_WARN_ON to the if branch and just skip the fast path."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/iommu/generic_pt/iommu_pt.h"], "versions": [{"version": "dcd6a011a8d523a114af2360a8753de5bd60c139", "lessThan": "00850f41da24423587abd6124a790dd4f12bcef3", "status": "affected", "versionType": "git"}, {"version": "dcd6a011a8d523a114af2360a8753de5bd60c139", "lessThan": "8ef3f77c440005c7f04229a75976bfc078364247", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/iommu/generic_pt/iommu_pt.h"], "versions": [{"version": "6.19", "status": "affected"}, {"version": "0", "lessThan": "6.19", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.11", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "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": "6.19", "versionEndExcluding": "7.0.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.19", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/00850f41da24423587abd6124a790dd4f12bcef3"}, {"url": "https://git.kernel.org/stable/c/8ef3f77c440005c7f04229a75976bfc078364247"}], "title": "iommupt: Check for missing PAGE_SIZE in the pgsize_bitmap", "x_generator": {"engine": "bippy-1.2.0"}}}}

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