CVE-2026-53053

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.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.0 / Impact : 6.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://git.kernel.org/stable/c/20b3c566e2702e5d4d0545be8a97029a2eebcc0e
https://git.kernel.org/stable/c/dae251ff11d2d2208a029f98923756831cefec46
https://git.kernel.org/stable/c/dbd76a537d8cb814e7f5b795ab21ecb7949c821d
https://git.kernel.org/stable/c/faad224fe0f0857a04ff2eb3c90f0de57f47d0f3

Configurations

No configuration.

History

28 Jun 2026, 08:16

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 8.8

24 Jun 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-24 17:17

Updated : 2026-07-14 15:26

NVD link : CVE-2026-53053

Mitre link : CVE-2026-53053

CVE.ORG link : CVE-2026-53053

JSON object : View

Products Affected

No product.

CWE

No CWE.

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