---
id: CVE-2026-90034
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  usb: image: mdc800: change kmalloc() to kzalloc()

  Change the kmalloc() calls in usb_mdc800_init() for irq_urb_buffer and
  download_urb_buffer to kzalloc(), avoiding pot…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  usb: image: mdc800: change kmalloc() to kzalloc()

  Change the kmalloc() calls in usb_mdc800_init() for irq_urb_buffer and
  download_urb_buffer to kzalloc(), avoiding pot…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    6c601410d1a9ae645f604fe2f61b9f4942c77dfb
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    2df8f7720ed91f1aad4f128553b6e90c7c5fac1e
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    67c6726dd6048a2781aa43a2bf9fcf1e16ee3a7d
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    553c375e86a49882e95840565512e17bff31cc3a
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    8c38049879f2108f57c98f03cc7f3db51a12bdab
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    838455cc8bfe1278150d1d776529edea6cd4c1dd
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    e22428f0c038c23109c0383a235aa607b0cd4c95
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    2430eb81e44111b30eeb5273bbcf8b24ca517ef9
  - Linux < 5.10.270
  - Linux < 5.15.221
  - Linux < 6.1.188
  - Linux < 6.6.157
  - Linux < 6.12.110
  - Linux < 6.18.51
  - Linux < 7.2.5
  - Linux (all versions)
published: '2026-09-16'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T10:17:06.167'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90034'
references:
  - url: 'https://git.kernel.org/stable/c/2430eb81e44111b30eeb5273bbcf8b24ca517ef9'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/2df8f7720ed91f1aad4f128553b6e90c7c5fac1e'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/553c375e86a49882e95840565512e17bff31cc3a'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/67c6726dd6048a2781aa43a2bf9fcf1e16ee3a7d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/6c601410d1a9ae645f604fe2f61b9f4942c77dfb'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/838455cc8bfe1278150d1d776529edea6cd4c1dd'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/8c38049879f2108f57c98f03cc7f3db51a12bdab'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/e22428f0c038c23109c0383a235aa607b0cd4c95'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-16T10:53:53.935Z'
epss: 0.0022
epssPercentile: 0.11204
---

## Overview

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

usb: image: mdc800: change kmalloc() to kzalloc()

Change the kmalloc() calls in usb_mdc800_init() for irq_urb_buffer and
download_urb_buffer to kzalloc(), avoiding potential stack leaks if a
shorter message is received in mdc800_usb_irq() and
mdc800_usb_download_notify()

## Remediation

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