---
id: CVE-2026-43132
title: 'dm-verity: correctly handle dm_bufio_client_create() failure'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  dm-verity: correctly handle dm_bufio_client_create() failure

  If either of the calls to dm_bufio_client_create() in verity_fec_ctr()
  fails, then dm_bufio_client_destroy…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= a739ff3f543afbb4a041c16cd0182c8e8d366e70 <
    6283e49af87a9c121bb01e5a64a7fe5706c210bc
  - >-
    Linux >= a739ff3f543afbb4a041c16cd0182c8e8d366e70 <
    d3e1f1adc8a0289efe2d2cdc90edb8c6ffe0b5ef
  - >-
    Linux >= a739ff3f543afbb4a041c16cd0182c8e8d366e70 <
    5c2217ddb3b7e7ac25f4ebe9061258fc8f1c9167
  - >-
    Linux >= a739ff3f543afbb4a041c16cd0182c8e8d366e70 <
    031f2adc1499b112a39ac316bbab3c80bba16cf2
  - >-
    Linux >= a739ff3f543afbb4a041c16cd0182c8e8d366e70 <
    9b8dc1d327e2928f3da59ced0595d850d31c0936
  - >-
    Linux >= a739ff3f543afbb4a041c16cd0182c8e8d366e70 <
    451cc650e40e8c3222d37877a9e4be0fcaacb9c8
  - >-
    Linux >= a739ff3f543afbb4a041c16cd0182c8e8d366e70 <
    b154a868a3856fb5216c4f82981d8a503832e095
  - >-
    Linux >= a739ff3f543afbb4a041c16cd0182c8e8d366e70 <
    119f4f04186fa4f33ee6bd39af145cdaff1ff17f
  - Linux 4.5
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-06T15:29:11.377343Z'
published: '2026-05-06'
updated: '2026-11-06'
sourceUpdated: '2026-11-06T15:32:32.723Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-43132'
references:
  - url: 'https://git.kernel.org/stable/c/6283e49af87a9c121bb01e5a64a7fe5706c210bc'
  - url: 'https://git.kernel.org/stable/c/d3e1f1adc8a0289efe2d2cdc90edb8c6ffe0b5ef'
  - url: 'https://git.kernel.org/stable/c/5c2217ddb3b7e7ac25f4ebe9061258fc8f1c9167'
  - url: 'https://git.kernel.org/stable/c/031f2adc1499b112a39ac316bbab3c80bba16cf2'
  - url: 'https://git.kernel.org/stable/c/9b8dc1d327e2928f3da59ced0595d850d31c0936'
  - url: 'https://git.kernel.org/stable/c/451cc650e40e8c3222d37877a9e4be0fcaacb9c8'
  - url: 'https://git.kernel.org/stable/c/b154a868a3856fb5216c4f82981d8a503832e095'
  - url: 'https://git.kernel.org/stable/c/119f4f04186fa4f33ee6bd39af145cdaff1ff17f'
tags:
  - cve.org
epss: 0.00128
epssPercentile: 0.02472
ingestedAt: '2026-11-06T15:54:04.027Z'
---

## Overview

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

dm-verity: correctly handle dm_bufio_client_create() failure

If either of the calls to dm_bufio_client_create() in verity_fec_ctr()
fails, then dm_bufio_client_destroy() is later called with an ERR_PTR()
argument.  That causes a crash.  Fix this.

## Affected

- `Linux >= a739ff3f543afbb4a041c16cd0182c8e8d366e70 < 6283e49af87a9c121bb01e5a64a7fe5706c210bc`
- `Linux >= a739ff3f543afbb4a041c16cd0182c8e8d366e70 < d3e1f1adc8a0289efe2d2cdc90edb8c6ffe0b5ef`
- `Linux >= a739ff3f543afbb4a041c16cd0182c8e8d366e70 < 5c2217ddb3b7e7ac25f4ebe9061258fc8f1c9167`
- `Linux >= a739ff3f543afbb4a041c16cd0182c8e8d366e70 < 031f2adc1499b112a39ac316bbab3c80bba16cf2`
- `Linux >= a739ff3f543afbb4a041c16cd0182c8e8d366e70 < 9b8dc1d327e2928f3da59ced0595d850d31c0936`
- `Linux >= a739ff3f543afbb4a041c16cd0182c8e8d366e70 < 451cc650e40e8c3222d37877a9e4be0fcaacb9c8`
- `Linux >= a739ff3f543afbb4a041c16cd0182c8e8d366e70 < b154a868a3856fb5216c4f82981d8a503832e095`
- `Linux >= a739ff3f543afbb4a041c16cd0182c8e8d366e70 < 119f4f04186fa4f33ee6bd39af145cdaff1ff17f`
- `Linux 4.5`

## Remediation

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