---
id: CVE-2026-23026
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  dmaengine: qcom: gpi: Fix memory leak in gpi_peripheral_config()

  Fix a memory leak in gpi_peripheral_config() where the original memory
  pointed to by gchan->config cou…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  dmaengine: qcom: gpi: Fix memory leak in gpi_peripheral_config()

  Fix a memory leak in gpi_peripheral_config() where the original memory
  pointed to by gchan->config cou…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-401
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 5.11.1, < 5.15.199'
  - 'linux_kernel >= 5.16, < 6.1.162'
  - 'linux_kernel >= 6.2, < 6.6.122'
  - 'linux_kernel >= 6.7, < 6.12.67'
  - 'linux_kernel >= 6.13, < 6.18.7'
  - linux_kernel = 5.11
  - linux_kernel = 6.19
patched:
  - linux_kernel 6.18.7
published: '2026-01-31'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T02:18:40.237'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-23026'
references:
  - url: 'https://git.kernel.org/stable/c/01b1d781394fc9b83015e3a3cd46b17bda842bd8'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/3f747004bbd641131d9396d87b5d2d3d1e182728'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/4532f18e4ab36def1f55cd936d0fc002b2ce34c2'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/55a67ba5ac4cebfd54cc8305d4d57a0f1dfe6a85'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/694ab1f6f16cb69f7c5ef2452b22ba7b00a3c7c7'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/6bf4ef078fd11910988889a6c0b3698d2e0c89af'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-019113.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-253495.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-457936.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
tags:
  - nvd
  - cve.org
epss: 0.0021
epssPercentile: 0.11098
ingestedAt: '2026-09-08T15:33:26.994Z'
---

## Overview

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

dmaengine: qcom: gpi: Fix memory leak in gpi_peripheral_config()

Fix a memory leak in gpi_peripheral_config() where the original memory
pointed to by gchan->config could be lost if krealloc() fails.

The issue occurs when:
1. gchan->config points to previously allocated memory
2. krealloc() fails and returns NULL
3. The function directly assigns NULL to gchan->config, losing the
   reference to the original memory
4. The original memory becomes unreachable and cannot be freed

Fix this by using a temporary variable to hold the krealloc() result
and only updating gchan->config when the allocation succeeds.

Found via static analysis and code review.

## Affected

- `linux_kernel >= 5.11.1, < 5.15.199`
- `linux_kernel >= 5.16, < 6.1.162`
- `linux_kernel >= 6.2, < 6.6.122`
- `linux_kernel >= 6.7, < 6.12.67`
- `linux_kernel >= 6.13, < 6.18.7`
- `linux_kernel = 5.11`
- `linux_kernel = 6.19`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.18.7`