CVE-2026-53053 Details
Description
In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Fix clone_alias() to use the original device's devid Currently clone_alias() assumes first argument (pdev) is always the original device pointer. This function is called by pci_for_each_dma_alias() which based on topology decides to send original or alias device details in first argument. This meant that the source devid used to look up and copy the DTE may be incorrect, leading to wrong or stale DTE entries being propagated to alias device. Fix this by passing the original pdev as the opaque data argument to both the direct clone_alias() call and pci_for_each_dma_alias(). Inside clone_alias(), retrieve the original device from data and compute devid from it.
A vulnerability in the Linux kernel's IOMMU AMD handling has been addressed. The issue arose in the clone_alias() function, which incorrectly assumed that the first argument always referred to the original device pointer. This misassumption could lead to the propagation of incorrect or outdated device table entries for alias devices. The vulnerability was present in the Linux kernel stable tree.
Users can upgrade to the latest version of the Linux kernel where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/20b3c566e2702e5d4d0545be8a97029a2eebcc0e | kernel.org | Patch |
| https://git.kernel.org/stable/c/dae251ff11d2d2208a029f98923756831cefec46 | kernel.org | Patch |
| https://git.kernel.org/stable/c/dbd76a537d8cb814e7f5b795ab21ecb7949c821d | kernel.org | Patch |
| https://git.kernel.org/stable/c/faad224fe0f0857a04ff2eb3c90f0de57f47d0f3 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 5.4.17, < 6.12.91 >= 6.13, < 6.18.33 >= 6.19, < 7.0.10 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 21, 2026 | Initial Analysis | [email protected] |
| Jun 28, 2026 | CVE Modified | kernel.org |
| Jun 24, 2026 | New CVE Received | kernel.org |