---
id: CVE-2022-49051
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  net: usb: aqc111: Fix out-of-bounds accesses in RX fixup

  aqc111_rx_fixup() contains several out-of-bounds accesses that can be
  triggered by a malicious (or defective) …
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  net: usb: aqc111: Fix out-of-bounds accesses in RX fixup

  aqc111_rx_fixup() contains several out-of-bounds accesses that can be
  triggered by a malicious (or defective) …
severity: medium
cvss: 6.8
cvssVector: 'CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-125
  - CWE-787
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 5.0, < 5.4.190'
  - 'linux_kernel >= 5.5, < 5.10.112'
  - 'linux_kernel >= 5.11, < 5.15.35'
  - 'linux_kernel >= 5.16, < 5.17.4'
  - linux_kernel = 5.18
patched:
  - linux_kernel 5.17.4
published: '2025-02-26'
updated: '2026-08-13'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2022-49051'
references:
  - url: 'https://git.kernel.org/stable/c/36311fe98f55dea9200c69e2dd6d6ddb8fc94080'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/404998a137bcb8a926f7c949030afbe285472593'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/afb8e246527536848b9b4025b40e613edf776a9d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/b416898442f2b6aa9f1b2f2968ce07e3abaa05f7'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/d90df6da50c56ad8b1a132e3cf86b6cdf8f507b7'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
epss: 0.00437
epssPercentile: 0.35387
ingestedAt: '2026-08-13T00:57:22.064Z'
---

## Overview

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

net: usb: aqc111: Fix out-of-bounds accesses in RX fixup

aqc111_rx_fixup() contains several out-of-bounds accesses that can be
triggered by a malicious (or defective) USB device, in particular:

 - The metadata array (desc_offset..desc_offset+2*pkt_count) can be out of bounds,
   causing OOB reads and (on big-endian systems) OOB endianness flips.
 - A packet can overlap the metadata array, causing a later OOB
   endianness flip to corrupt data used by a cloned SKB that has already
   been handed off into the network stack.
 - A packet SKB can be constructed whose tail is far beyond its end,
   causing out-of-bounds heap data to be considered part of the SKB's
   data.

Found doing variant analysis. Tested it with another driver (ax88179_178a), since
I don't have a aqc111 device to test it, but the code looks very similar.

## Affected

- `linux_kernel >= 5.0, < 5.4.190`
- `linux_kernel >= 5.5, < 5.10.112`
- `linux_kernel >= 5.11, < 5.15.35`
- `linux_kernel >= 5.16, < 5.17.4`
- `linux_kernel = 5.18`

## Remediation

Upgrade past the affected range:

- `linux_kernel 5.17.4`