---
id: CVE-2026-46068
title: 'crypto: nx - fix bounce buffer leaks in nx842_crypto_{alloc,free}_ctx'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  crypto: nx - fix bounce buffer leaks in nx842_crypto_{alloc,free}_ctx

  The bounce buffers are allocated with __get_free_pages() using
  BOUNCE_BUFFER_ORDER (order 2 = 4 p…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= ed70b479c2c0b6e1319f0cb2de19f1051be219a4 <
    f17a4850d1ce7c11cba8b1830b9bfedfede878bb
  - >-
    Linux >= ed70b479c2c0b6e1319f0cb2de19f1051be219a4 <
    910bb34b801d39794e656f7d48414844b2bd354e
  - >-
    Linux >= ed70b479c2c0b6e1319f0cb2de19f1051be219a4 <
    5c07962fed66e1238fad7635fa150570bd38b4c5
  - >-
    Linux >= ed70b479c2c0b6e1319f0cb2de19f1051be219a4 <
    80fd99d7c30ea889662d21f1b44d8fea4c83138d
  - >-
    Linux >= ed70b479c2c0b6e1319f0cb2de19f1051be219a4 <
    adb3faf2db1a66d0f015b44ac909a32dfc7f2f9c
  - Linux 4.2
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-06T16:07:10.339424Z'
published: '2026-05-27'
updated: '2026-11-06'
sourceUpdated: '2026-11-06T16:13:35.458Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-46068'
references:
  - url: 'https://git.kernel.org/stable/c/f17a4850d1ce7c11cba8b1830b9bfedfede878bb'
  - url: 'https://git.kernel.org/stable/c/910bb34b801d39794e656f7d48414844b2bd354e'
  - url: 'https://git.kernel.org/stable/c/5c07962fed66e1238fad7635fa150570bd38b4c5'
  - url: 'https://git.kernel.org/stable/c/80fd99d7c30ea889662d21f1b44d8fea4c83138d'
  - url: 'https://git.kernel.org/stable/c/adb3faf2db1a66d0f015b44ac909a32dfc7f2f9c'
tags:
  - cve.org
epss: 0.00129
epssPercentile: 0.02529
ingestedAt: '2026-11-06T16:57:43.344Z'
---

## Overview

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

crypto: nx - fix bounce buffer leaks in nx842_crypto_{alloc,free}_ctx

The bounce buffers are allocated with __get_free_pages() using
BOUNCE_BUFFER_ORDER (order 2 = 4 pages), but both the allocation error
path and nx842_crypto_free_ctx() release the buffers with free_page().
Use free_pages() with the matching order instead.

## Affected

- `Linux >= ed70b479c2c0b6e1319f0cb2de19f1051be219a4 < f17a4850d1ce7c11cba8b1830b9bfedfede878bb`
- `Linux >= ed70b479c2c0b6e1319f0cb2de19f1051be219a4 < 910bb34b801d39794e656f7d48414844b2bd354e`
- `Linux >= ed70b479c2c0b6e1319f0cb2de19f1051be219a4 < 5c07962fed66e1238fad7635fa150570bd38b4c5`
- `Linux >= ed70b479c2c0b6e1319f0cb2de19f1051be219a4 < 80fd99d7c30ea889662d21f1b44d8fea4c83138d`
- `Linux >= ed70b479c2c0b6e1319f0cb2de19f1051be219a4 < adb3faf2db1a66d0f015b44ac909a32dfc7f2f9c`
- `Linux 4.2`

## Remediation

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