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)
Advisories
Source ID Title
Debian DLA Debian DLA DLA-4665-1 linux security update
Debian DLA Debian DLA DLA-4671-1 linux-6.1 security update
Debian DLA Debian DLA DLA-4717-1 linux security update
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Sat, 18 Jul 2026 08:00:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}


Sat, 04 Jul 2026 12:15:00 +0000


Thu, 02 Jul 2026 00:15:00 +0000


Wed, 01 Jul 2026 23:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-122
CWE-680

Wed, 01 Jul 2026 17:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-122
CWE-680

Wed, 01 Jul 2026 13:45:00 +0000

Type Values Removed Values Added
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)
Title drm/amd/display: Use krealloc_array() in dal_vector_reserve()
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-08-05T12:35:01.324Z

Reserved: 2026-06-09T07:44:35.398Z

Link: CVE-2026-53329

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2026-07-01T14:16:40.760

Modified: 2026-07-23T21:34:08.263

Link: CVE-2026-53329

cve-icon Redhat

Severity :

Publid Date: 2026-07-01T00:00:00Z

Links: CVE-2026-53329 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-08-12T09:15:02Z

Weaknesses