CVE-2026-90228

Last refreshed2026-10-19

Status: UPDATED | Advisory ID: CVE-2026-90228

Key Details

CVE	CVE-2026-90228
CVSS Score / Version	7.5 (High) / CVSS v3.1
Updated	2026-10-19
CVSS Vector	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`
CVSS Prose	attack vector is network; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is none; integrity impact is none; 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:

nvmet: fix NULL pointer dereference in nvmet_execute_identify_ns_zns()

When a host issues an Identify command with CNS 05h (I/O Command Set

specific Identify Namespace) and CSI 02h (ZNS) targeting a file-backed

namespace, nvmet_execute_identify_ns_zns() calls bdev_is_zoned() on

req->ns->bdev. A file-backed namespace has no block device, so

req->ns->bdev is NULL and bdev_is_zoned() dereferences it, oopsing.

The I/O command set is selected by the host-supplied CSI field and the

command is routed here whenever CONFIG_BLK_DEV_ZONED is enabled,

independent of the namespace backing type, so any file-backed namespace

is exposed.

Reject the command with Invalid Field when the namespace is not backed

by a block device. (NVD)

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

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-90228
CVE	https://www.cve.org/CVERecord?id=CVE-2026-90228

Source

Reference

NVD

CVE