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CVE-2026-53372

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

MEDIUM
5.5
CVSS Score
Published: July 19, 2026 at 09:10 AM UTC
Updated: July 29, 2026 at 05:13 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
6.13 ≤ v < 6.18.306.13 ≤ v < 7.0.76.13 ≤ v < 7.16.19 ≤ v < 7.0.76.1367f6f56b59126b3bf4fc6f4ea564e450fcfcf9f6
Vendor states this is fixed in 3ea9ce757bd3de955b56e7bc5672fc479e40b045 (fixed)
Vendor states this is fixed in 9009c1af5458322469fa9a4371081a4449c5947d (fixed)
Vendor states this is fixed in cc5bd898ff70710ffc41cd8e5c2741cb64750047 (fixed)
Vendor states this is fixed in 6.13 (unaffected)
Vendor states this is fixed in 6.18.30 (unaffected)
Vendor states this is fixed in 7.0.7 (unaffected)
Vendor states this is fixed in 7.1 (unaffected)

References (3)

Patch
Source: cverecord
https://git.kernel.org/stable/c/3ea9ce757bd3de955b56e7bc5672fc479e40b045
Patch
Source: cverecord
https://git.kernel.org/stable/c/9009c1af5458322469fa9a4371081a4449c5947d
Patch
Source: cverecord
https://git.kernel.org/stable/c/cc5bd898ff70710ffc41cd8e5c2741cb64750047

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
NVD-CWE-noinfo

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