CVE-2026-53053

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-53053

Key Details

CVE	CVE-2026-53053
CVSS Score / Version	8.8 (High) / CVSS v3.1
Updated	2026-10-16
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is low; user interaction is none; scope is changed; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products	Linux Kernel

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

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. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-53053
CVE	https://www.cve.org/CVERecord?id=CVE-2026-53053

Source

Reference

NVD

CVE