---
id: CVE-2026-90340
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  pinctrl: generic: free maps on pinctrl_generic_to_map() failure

  pinctrl_generic_to_map() parses DT configuration and allocates pinctrl
  maps via pinctrl_utils_reserve_m…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  pinctrl: generic: free maps on pinctrl_generic_to_map() failure

  pinctrl_generic_to_map() parses DT configuration and allocates pinctrl
  maps via pinctrl_utils_reserve_m…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= aaaf31be04260316036f50a05b7d015c0d36b55a <
    09f47abc95ee9e819e7e93cd68c1c23abe11c842
  - >-
    Linux >= aaaf31be04260316036f50a05b7d015c0d36b55a <
    17007cd700601777d9ee203a13d97e64ece3a10f
  - Linux 7.2
published: '2026-09-17'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T17:17:32.633'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90340'
references:
  - url: 'https://git.kernel.org/stable/c/09f47abc95ee9e819e7e93cd68c1c23abe11c842'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/17007cd700601777d9ee203a13d97e64ece3a10f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-17T16:21:47.818Z'
epss: 0.00189
epssPercentile: 0.08805
---

## Overview

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

pinctrl: generic: free maps on pinctrl_generic_to_map() failure

pinctrl_generic_to_map() parses DT configuration and allocates pinctrl
maps via pinctrl_utils_reserve_map().

If subsequent steps (such as pinctrl_utils_add_map_mux(),
pinctrl_generic_add_group(), pinconf_generic_parse_dt_config(), or
pinctrl_utils_add_map_configs()) return an error, *maps may contain
partially allocated map entries. Returning the error directly without
freeing *maps leaks the allocated mapping memory across all drivers
that rely on pinctrl_generic_to_map().

Fix this by calling pinctrl_utils_free_map() and resetting *maps,
*num_maps, and *num_reserved_maps in the error path of
pinctrl_generic_to_map().

## Remediation

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