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CVE-2026-53372iommu/vt-d: Block PASID attachment to nested domain with dirty tracking

Description

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Block PASID attachment to nested domain with dirty tracking Kernel lacks dirty tracking support on nested domain attached to PASID, fails the attachment early if nesting parent domain is dirty tracking configured, otherwise dirty pages would be lost.

Timeline

  1. ID reserved

    By Linux

  2. · 40 days later

    Published

  3. · 4 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2026-53372, by who scored it
Scored byCVSSScoreVector
NVDNVD · Analyzed3.1Medium5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
0.16% · top 95% of all CVEs (14 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.

Affected products

  • Linux · Linux

    • affected 67f6f56b59126b3bf4fc6f4ea564e450fcfcf9f6 – < 3ea9ce757bd3de955b56e7bc5672fc479e40b045
    • affected 67f6f56b59126b3bf4fc6f4ea564e450fcfcf9f6 – < 9009c1af5458322469fa9a4371081a4449c5947d
    • affected 67f6f56b59126b3bf4fc6f4ea564e450fcfcf9f6 – < cc5bd898ff70710ffc41cd8e5c2741cb64750047

  • Linux · Linux

    • affected 6.13
    • unaffected < 6.13
    • unaffected 6.18.30 – ≤ 6.18.*
    • unaffected 7.0.7 – ≤ 7.0.*
    • unaffected 7.1 – ≤ *

References

References3

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .