CVE-2026-45862

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-45862

Key Details

CVE	CVE-2026-45862
CVSS Score / Version	7.8 (High) / CVSS v3.1
Updated	2026-10-16
CVSS Vector	`CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H`
CVSS Prose	attack vector is local; attack complexity is high; 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/vt-d: Flush cache for PASID table before using it

When writing the address of a freshly allocated zero-initialized PASID

table to a PASID directory entry, do that after the CPU cache flush for

this PASID table, not before it, to avoid the time window when this

PASID table may be already used by non-coherent IOMMU hardware while

its contents in RAM is still some random old data, not zero-initialized.

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

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-45862
CVE	https://www.cve.org/CVERecord?id=CVE-2026-45862

Source

Reference

NVD

CVE