CVE-2026-74355

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-74355

Key Details

CVE	CVE-2026-74355
CVSS Score / Version	8.2 (High) / CVSS v3.1
Updated	2026-10-16
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is high; 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: Fix RB-tree corruption in probe error path

The info->node RB-tree member is zero-initialized via kzalloc. If

a device does not support ATS, the device_rbtree_insert() call is

skipped. If a subsequent probe step fails, the error path jumps to

device_rbtree_remove(), which misinterprets the zeroed node as

a tree root and corrupts the device RB-tree.

Fix this by explicitly initializing the RB-node as empty using

RB_CLEAR_NODE() during initialization and guarding the removal with

RB_EMPTY_NODE(). (NVD)

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

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-74355
CVE	https://www.cve.org/CVERecord?id=CVE-2026-74355

Source

Reference

NVD

CVE