CVE-2026-53329

High

Description

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)

SeverityHigh
CVSS7.0
Exploit probability—
ProductLinux Kernel
PublishedJul 1, 2026
First seenJul 1, 2026

How to fix

Update
  • linux linux_kernel5.10.260, 5.15.210, 6.1.176, 6.6.143, 6.12.94, 6.18.36, 7.0.13 or later

Affected products

ProductAffected versionsFixed in
linux linux_kernel4.15 ≤ v < 5.10.260, 5.11 ≤ v < 5.15.210, 5.16 ≤ v < 6.1.176, 6.2 ≤ v < 6.6.143, 6.7 ≤ v < 6.12.94, 6.13 ≤ v < 6.18.36, 6.19 ≤ v < 7.0.13, 7.15.10.260, 5.15.210, 6.1.176, 6.6.143, 6.12.94, 6.18.36, 7.0.13

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