---
id: CVE-2026-90227
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  nvme/ioctl: check SUBMIT_IO with nvme_cmd_allowed()

  Unlike IO_CMD / IO64_CMD, NVME_IOCTL_SUBMIT_IO never calls
  nvme_cmd_allowed()
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  nvme/ioctl: check SUBMIT_IO with nvme_cmd_allowed()

  Unlike IO_CMD / IO64_CMD, NVME_IOCTL_SUBMIT_IO never calls
  nvme_cmd_allowed(). Unprivileged callers can thus issue …
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= a53295b6998f62d961c29e54051c1cf1d738c2b3 <
    c35cd98eed1a863e8dd51073953563cd8c907f68
  - >-
    Linux >= a53295b6998f62d961c29e54051c1cf1d738c2b3 <
    95b0591d51dbf9e618d7845883d535e88ad7c8af
  - >-
    Linux >= a53295b6998f62d961c29e54051c1cf1d738c2b3 <
    736b7c6adc7a65c4411beff197b6a634f7a6ca27
  - >-
    Linux >= a53295b6998f62d961c29e54051c1cf1d738c2b3 <
    b116e9dae433ff631f94c36c61a7a78fe400ed1e
  - >-
    Linux >= a53295b6998f62d961c29e54051c1cf1d738c2b3 <
    b53d495c7f0db46b6748b5ade48371a10dd5d3bc
  - Linux 3.3
published: '2026-09-17'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T18:17:47.500'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90227'
references:
  - url: 'https://git.kernel.org/stable/c/736b7c6adc7a65c4411beff197b6a634f7a6ca27'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/95b0591d51dbf9e618d7845883d535e88ad7c8af'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/b116e9dae433ff631f94c36c61a7a78fe400ed1e'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/b53d495c7f0db46b6748b5ade48371a10dd5d3bc'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/c35cd98eed1a863e8dd51073953563cd8c907f68'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90227.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-90227'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2536346'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-90227'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90227'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-90227.mbox
  - url: 'https://access.redhat.com/errata/RHSA-2026:76738'
  - url: 'https://access.redhat.com/errata/RHSA-2026:76739'
  - url: 'https://access.redhat.com/errata/RHSA-2026:75747'
  - url: 'https://access.redhat.com/errata/RHSA-2026:75746'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
epss: 0.00168
epssPercentile: 0.06063
ingestedAt: '2026-09-17T16:21:47.853Z'
patched:
  - 10base_smtv
  - enterprise_linux_appstream_v_10
  - enterprise_linux_appstream_v_9
  - enterprise_linux_baseos_v_10
  - enterprise_linux_baseos_v_8
  - enterprise_linux_baseos_v_9
  - enterprise_linux_codeready_linux_builder_v_10
  - enterprise_linux_crb_v_8
  - enterprise_linux_codeready_linux_builder_v_9
  - enterprise_linux_hidden_v_10
  - enterprise_linux_real_time_for_nfv_v_10
  - enterprise_linux_nfv_v_8
  - enterprise_linux_real_time_for_nfv_v_9
  - enterprise_linux_real_time_v_10
  - enterprise_linux_rt_v_8
  - enterprise_linux_real_time_v_9
cwe:
  - CWE-266
scores:
  nvd: 7.8
  vendor: 7
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

nvme/ioctl: check SUBMIT_IO with nvme_cmd_allowed()

Unlike IO_CMD / IO64_CMD, NVME_IOCTL_SUBMIT_IO never calls
nvme_cmd_allowed(). Unprivileged callers can thus issue I/O on a
partition device or write through a read-only file descriptor.

Pass flags and open_for_write through and reject disallowed commands
with -EACCES.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **RHSA-2026:76738** · Red Hat · fixed in: 10Base-SMTV, Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux BaseOS (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10), Red Hat Enterprise Linux Hidden (v. 10), Red Hat Enterprise Linux Real Time for NFV (v. 10), … · released 2026-10-08 · [advisory](https://access.redhat.com/errata/RHSA-2026:76738)
- **RHSA-2026:76739** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux BaseOS (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9), Red Hat Enterprise Linux Real Time for NFV (v. 9), Red Hat Enterprise Linux Real Time (v. 9) · released 2026-10-08 · [advisory](https://access.redhat.com/errata/RHSA-2026:76739)
- **RHSA-2026:75747** · Red Hat · fixed in: Red Hat Enterprise Linux BaseOS (v. 8), Red Hat Enterprise Linux CRB (v. 8) · released 2026-10-05 · [advisory](https://access.redhat.com/errata/RHSA-2026:75747)
- **RHSA-2026:75746** · Red Hat · fixed in: Red Hat Enterprise Linux NFV (v. 8), Red Hat Enterprise Linux RT (v. 8) · released 2026-10-05 · [advisory](https://access.redhat.com/errata/RHSA-2026:75746)
- **Red Hat VEX** · Important · affected: Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-10-26 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90227.json)