---
id: CVE-2026-80822
title: 'mailbox: mchp-ipc-sbi: Add null check for devm_kasprintf()'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  mailbox: mchp-ipc-sbi: Add null check for devm_kasprintf()

  Add a check to see if devm_kasprintf() is not NULL in
  mchp_ipc_get_cluster_aggr_irq(), returning -ENOMEM if …
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= e4b1d67e71419c4af581890ecea84b04920d4116 <
    364edaedf4125825781a12c84c77699780d52a16
  - >-
    Linux >= e4b1d67e71419c4af581890ecea84b04920d4116 <
    df5c9816986b2f4d754ef3aa65a92382e9b39c4a
  - >-
    Linux >= e4b1d67e71419c4af581890ecea84b04920d4116 <
    b233e7836d98d1790e71f5f3734a86409664f341
  - >-
    Linux >= e4b1d67e71419c4af581890ecea84b04920d4116 <
    b37c4d0a2fd90c0c31223acd37f763eb8953ed1a
  - Linux 6.14
published: '2026-09-04'
updated: '2026-10-19'
sourceUpdated: '2026-10-19T08:44:14.874Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-80822'
references:
  - url: 'https://git.kernel.org/stable/c/364edaedf4125825781a12c84c77699780d52a16'
  - url: 'https://git.kernel.org/stable/c/df5c9816986b2f4d754ef3aa65a92382e9b39c4a'
  - url: 'https://git.kernel.org/stable/c/b233e7836d98d1790e71f5f3734a86409664f341'
  - url: 'https://git.kernel.org/stable/c/b37c4d0a2fd90c0c31223acd37f763eb8953ed1a'
tags:
  - cve.org
epss: 0.00168
epssPercentile: 0.05665
ingestedAt: '2026-10-19T09:16:01.504Z'
---

## Overview

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

mailbox: mchp-ipc-sbi: Add null check for devm_kasprintf()

Add a check to see if devm_kasprintf() is not NULL in
mchp_ipc_get_cluster_aggr_irq(), returning -ENOMEM if the function
failed.

## Affected

- `Linux >= e4b1d67e71419c4af581890ecea84b04920d4116 < 364edaedf4125825781a12c84c77699780d52a16`
- `Linux >= e4b1d67e71419c4af581890ecea84b04920d4116 < df5c9816986b2f4d754ef3aa65a92382e9b39c4a`
- `Linux >= e4b1d67e71419c4af581890ecea84b04920d4116 < b233e7836d98d1790e71f5f3734a86409664f341`
- `Linux >= e4b1d67e71419c4af581890ecea84b04920d4116 < b37c4d0a2fd90c0c31223acd37f763eb8953ed1a`
- `Linux 6.14`

## Remediation

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