CVE-2026-53329

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)

CVSS 3.1

7.0CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.1% chance of exploitation in the next 30 days; higher than 3% of CVEs (scores of 2026-10-25)

CWEs

CWE-674, CWE-190

Published

2026-07-01

Modified

2026-10-19

Record from

the NVD, synced 2026-10-21

Affected

• linux:linux_kernel

References

• https://git.kernel.org/stable/c/201151e120f0062bcda21cad5d007b82725ad23b
• https://git.kernel.org/stable/c/31180638a33acad12c863132704a76536fb66211
• https://git.kernel.org/stable/c/9540b0a4d13e4ede64ae1197d66a176d2149daa9
• https://git.kernel.org/stable/c/a914aa802669e073f014dae2e5708633b5cecd34
• https://git.kernel.org/stable/c/b15825deac1acff72638bbc8f05b89ceef8dfb13

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