---
id: CVE-2026-31520
title: 'HID: apple: avoid memory leak in apple_report_fixup()'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  HID: apple: avoid memory leak in apple_report_fixup()

  The apple_report_fixup() function was returning a
  newly kmemdup()-allocated buffer, but never freeing it.

  The ca…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 6e143293e17a73c9313f91c5ca3aaacbaef030cf <
    e2f090aeb7b9930a964e151910f4d45b04c8a7e5
  - >-
    Linux >= 6e143293e17a73c9313f91c5ca3aaacbaef030cf <
    2635d0c715f3fb177e0f80ecd5fa48feb6bf3884
  - >-
    Linux >= 6e143293e17a73c9313f91c5ca3aaacbaef030cf <
    31860c3f7ac66ab897a8c90dc4e74fa17ca0b624
  - >-
    Linux >= 6e143293e17a73c9313f91c5ca3aaacbaef030cf <
    be1a341c161430282acdfe2ac99b413271575cf1
  - >-
    Linux >= 6e143293e17a73c9313f91c5ca3aaacbaef030cf <
    e652ebd29928181c3e6820e303da25873e9917d4
  - >-
    Linux >= 6e143293e17a73c9313f91c5ca3aaacbaef030cf <
    239c15116d80f67d32f00acc34575f1a6b699613
  - Linux 5.17
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-05T21:37:02.146634Z'
published: '2026-04-22'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T21:45:05.120Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-31520'
references:
  - url: 'https://git.kernel.org/stable/c/e2f090aeb7b9930a964e151910f4d45b04c8a7e5'
  - url: 'https://git.kernel.org/stable/c/2635d0c715f3fb177e0f80ecd5fa48feb6bf3884'
  - url: 'https://git.kernel.org/stable/c/31860c3f7ac66ab897a8c90dc4e74fa17ca0b624'
  - url: 'https://git.kernel.org/stable/c/be1a341c161430282acdfe2ac99b413271575cf1'
  - url: 'https://git.kernel.org/stable/c/e652ebd29928181c3e6820e303da25873e9917d4'
  - url: 'https://git.kernel.org/stable/c/239c15116d80f67d32f00acc34575f1a6b699613'
tags:
  - cve.org
epss: 0.00123
epssPercentile: 0.02056
ingestedAt: '2026-11-05T23:41:31.978Z'
---

## Overview

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

HID: apple: avoid memory leak in apple_report_fixup()

The apple_report_fixup() function was returning a
newly kmemdup()-allocated buffer, but never freeing it.

The caller of report_fixup() does not take ownership of the returned
pointer, but it *is* permitted to return a sub-portion of the input
rdesc, whose lifetime is managed by the caller.

## Affected

- `Linux >= 6e143293e17a73c9313f91c5ca3aaacbaef030cf < e2f090aeb7b9930a964e151910f4d45b04c8a7e5`
- `Linux >= 6e143293e17a73c9313f91c5ca3aaacbaef030cf < 2635d0c715f3fb177e0f80ecd5fa48feb6bf3884`
- `Linux >= 6e143293e17a73c9313f91c5ca3aaacbaef030cf < 31860c3f7ac66ab897a8c90dc4e74fa17ca0b624`
- `Linux >= 6e143293e17a73c9313f91c5ca3aaacbaef030cf < be1a341c161430282acdfe2ac99b413271575cf1`
- `Linux >= 6e143293e17a73c9313f91c5ca3aaacbaef030cf < e652ebd29928181c3e6820e303da25873e9917d4`
- `Linux >= 6e143293e17a73c9313f91c5ca3aaacbaef030cf < 239c15116d80f67d32f00acc34575f1a6b699613`
- `Linux 5.17`

## Remediation

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