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CVE-2026-64151

In the Linux kernel, the following vulnerability has been resolved: iommupt: Check for missing PAGE_SIZE in the pgsize_bitmap Sashiko pointed out that the driver could drop PAGE_SIZE from the pgsize_bitmap. That is technically allowed but nothing does it, and such an iommu_domain would not be used with the DMA API today. Still, it is against the design and it is trivial to fix up. Lift the PT_WARN_ON to the if branch and just skip the fast path.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e4e627a6add35a64982b01e970d3f725a69e194944b59194b0e85f527268eee9
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/iommu/generic_pt/iommu_pt.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"00850f41da24423587abd6124a790dd4f12bcef3","status":"affected","version":"dcd6a011a8d523a114af2360a8753de5bd60c139","versionType":"git"},{"lessThan":"8ef3f77c440005c7f04229a75976bfc078364247","status":"affected","version":"dcd6a011a8d523a114af2360a8753de5bd60c139","versionType":"git"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:235e7e2a3853d45c8eed32b509f65a8c8f85b34e889e6eb8b0a7bb5b98237dd8 · sha256:3303ff0f9f1fd80e… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/iommu/generic_pt/iommu_pt.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.19"},{"lessThan":"6.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.11","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:235e7e2a3853d45c8eed32b509f65a8c8f85b34e889e6eb8b0a7bb5b98237dd8 · sha256:3303ff0f9f1fd80e… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/iommu/generic_pt/iommu_pt.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"00850f41da24423587abd6124a790dd4f12bcef3","status":"affected","version":"dcd6a011a8d523a114af2360a8753de5bd60c139","versionType":"git"},{"lessThan":"8ef3f77c440005c7f04229a75976bfc078364247","status":"affected","version":"dcd6a011a8d523a114af2360a8753de5bd60c139","versionType":"git"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:235e7e2a3853d45c8eed32b509f65a8c8f85b34e889e6eb8b0a7bb5b98237dd8 · sha256:3303ff0f9f1fd80e… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/iommu/generic_pt/iommu_pt.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.19"},{"lessThan":"6.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.11","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:235e7e2a3853d45c8eed32b509f65a8c8f85b34e889e6eb8b0a7bb5b98237dd8 · sha256:3303ff0f9f1fd80e… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":8.4,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:235e7e2a3853d45c8eed32b509f65a8c8f85b34e889e6eb8b0a7bb5b98237dd8 · sha256:3303ff0f9f1fd80e… · /containers/cna/metrics/0/cvssV3_1

Source references

2 source assertions
{"url":"https://git.kernel.org/stable/c/00850f41da24423587abd6124a790dd4f12bcef3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:235e7e2a3853d45c8eed32b509f65a8c8f85b34e889e6eb8b0a7bb5b98237dd8 · sha256:3303ff0f9f1fd80e… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/8ef3f77c440005c7f04229a75976bfc078364247"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:235e7e2a3853d45c8eed32b509f65a8c8f85b34e889e6eb8b0a7bb5b98237dd8 · sha256:3303ff0f9f1fd80e… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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