---
id: CVE-2026-53329
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  drm/amd/display: Use krealloc_array() in dal_vector_reserve()

  [Why & How]
  dal_vector_reserve() computes the allocation size as
  "capacity * vector->struct_size" using u…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  drm/amd/display: Use krealloc_array() in dal_vector_reserve()

  [Why & How]
  dal_vector_reserve() computes the allocation size as
  "capacity * vector->struct_size" using u…
severity: none
published: '2026-07-01'
updated: '2026-07-04'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-53329'
references:
  - url: 'https://git.kernel.org/stable/c/201151e120f0062bcda21cad5d007b82725ad23b'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/31180638a33acad12c863132704a76536fb66211'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/9540b0a4d13e4ede64ae1197d66a176d2149daa9'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/a914aa802669e073f014dae2e5708633b5cecd34'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/b15825deac1acff72638bbc8f05b89ceef8dfb13'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/da48bc4461b8a5ebfb9264c9b191a701d8e99009'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/de988c7a31f0774f07894cfe4802996f318e2870'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/e09689286385a66311ac6922af95339d7a3cef8d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
epss: 0.00142
epssPercentile: 0.03874
ingestedAt: '2026-07-04T13:56:12.012Z'
---

## Overview

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

drm/amd/display: Use krealloc_array() in dal_vector_reserve()

[Why & How]
dal_vector_reserve() computes the allocation size as
"capacity * vector->struct_size" using uint32_t arithmetic, which can
silently wrap to a small value on overflow. This would cause krealloc to
return a smaller buffer than expected, leading to heap overflows on
subsequent vector appends.

Replace krealloc() with krealloc_array() which performs an internal
overflow check and returns NULL on wrap, preventing the issue.

(cherry picked from commit 37668568641ccc4cc1dbca4923d0a16609dd5707)

## Remediation

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