---
id: CVE-2026-93090
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  firmware: arm_scmi: Clean up channels on setup failure

  scmi_channels_setup() can fail after the common BASE channel or earlier
  protocol channels have already been regi…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  firmware: arm_scmi: Clean up channels on setup failure

  scmi_channels_setup() can fail after the common BASE channel or earlier
  protocol channels have already been regi…
severity: medium
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 05a2801d8b90c1b5159618d4bd3a3c65d60f3ff1 <
    b8479e1f0219cf18bfdfeca97994e563a0afb602
  - >-
    Linux >= 05a2801d8b90c1b5159618d4bd3a3c65d60f3ff1 <
    d33b2b68bce6d5e28ee77f0952d7f3dc82bbe610
  - >-
    Linux >= 05a2801d8b90c1b5159618d4bd3a3c65d60f3ff1 <
    43aad7687238d6178cb3fdac53c8de3f43bfa028
  - >-
    Linux >= 05a2801d8b90c1b5159618d4bd3a3c65d60f3ff1 <
    687d67be3d87894ef12e8a164434612e0b53cfae
  - Linux 6.3
published: '2026-09-17'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T17:18:02.957'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93090'
references:
  - url: 'https://git.kernel.org/stable/c/43aad7687238d6178cb3fdac53c8de3f43bfa028'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/687d67be3d87894ef12e8a164434612e0b53cfae'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/b8479e1f0219cf18bfdfeca97994e563a0afb602'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/d33b2b68bce6d5e28ee77f0952d7f3dc82bbe610'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93090.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-93090'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2536284'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-93090'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93090'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-93090.mbox
  - url: 'https://git.kernel.org/stable/c/e835bd88ce9ddd858c186317f79e76ffa689c8db'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
ingestedAt: '2026-09-17T16:21:47.760Z'
epss: 0.00209
epssPercentile: 0.10944
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cvssSource: vendor
cwe:
  - CWE-772
---

## Overview

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

firmware: arm_scmi: Clean up channels on setup failure

scmi_channels_setup() can fail after the common BASE channel or earlier
protocol channels have already been registered in the TX/RX IDRs.

Route this failure through the existing channel cleanup label so the
transport channels, transport devices and IDR state created before the
failure are released before the probe error path frees the SCMI instance
ID.

## Remediation

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

## Vendor advisories

- **Red Hat VEX** · Moderate · updated 2026-10-05 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-93090.json)