CVE-2026-53329
Vulnerability Summary
Timeline
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)
CVSS Metrics
- v3.1•HIGH•Score: 7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Trends
Current EPSS score: 0.14%• Percentile: 4%
Techniques & Countermeasures
- CWE-674•Uncontrolled Recursion
The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.
Affected Systems
- debian•linux
< 5.10.262-1 | < 6.1.176-1 | < 6.12.94-1 | < 7.0.13-1
- debian•linux-6.1
< 6.1.176-1~deb11u1
- ubuntu•linux
all | all | all | all | all | < 7.0.0-31.31
- ubuntu•linux-allwinner-5.19
all
- ubuntu•linux-aws
all | all | all | all | all | < 7.0.0-1012.12
- ubuntu•linux-aws-5.0
all
- ubuntu•linux-aws-5.11
all
- ubuntu•linux-aws-5.13
all
- ubuntu•linux-aws-5.15
all
- ubuntu•linux-aws-5.19
all
- ubuntu•linux-aws-5.3
all
- ubuntu•linux-aws-5.4
all
- ubuntu•linux-aws-5.8
all
- ubuntu•linux-aws-6.14
all
- ubuntu•linux-aws-6.17
all
- ubuntu•linux-aws-6.2
all
- ubuntu•linux-aws-6.5
all
- ubuntu•linux-aws-6.8
all
- ubuntu•linux-aws-7.0
all | < 7.0.0-1012.12~24.04.1
- ubuntu•linux-aws-fips
all
- ubuntu•linux-aws-hwe
all
- ubuntu•linux-azure
all | all | all | all | all | all
- ubuntu•linux-azure-4.15
all
- ubuntu•linux-azure-5.11
all
- ubuntu•linux-azure-5.13
all
- ubuntu•linux-azure-5.15
all
- ubuntu•linux-azure-5.19
all
- ubuntu•linux-azure-5.3
all
- ubuntu•linux-azure-5.4
all
- ubuntu•linux-azure-5.8
all
- ubuntu•linux-azure-6.11
all
- ubuntu•linux-azure-6.14
all
- ubuntu•linux-azure-6.17
all
- ubuntu•linux-azure-6.2
all
- ubuntu•linux-azure-6.5
all
- ubuntu•linux-azure-6.8
all
- ubuntu•linux-azure-7.0
all
- ubuntu•linux-azure-edge
all
- ubuntu•linux-azure-fde
all | all | all | all | all
- ubuntu•linux-azure-fde-5.15
all
- ubuntu•linux-azure-fde-5.19
all
- ubuntu•linux-azure-fde-6.14
all
- ubuntu•linux-azure-fde-6.17
all
- ubuntu•linux-azure-fde-6.2
all
- ubuntu•linux-azure-fde-6.8
all
- ubuntu•linux-azure-fde-7.0
all
- ubuntu•linux-azure-fips
all
- ubuntu•linux-azure-nvidia
all
- ubuntu•linux-azure-nvidia-6.14
all
- ubuntu•linux-bluefield
all | all
Showing first 50 affected entries in server-rendered view.
References (17)
- https://git.kernel.org/stable/c/9540b0a4d13e4ede64ae1197d66a176d2149daa9
- https://git.kernel.org/stable/c/31180638a33acad12c863132704a76536fb66211
- https://git.kernel.org/stable/c/b15825deac1acff72638bbc8f05b89ceef8dfb13
- https://git.kernel.org/stable/c/201151e120f0062bcda21cad5d007b82725ad23b
- https://git.kernel.org/stable/c/a914aa802669e073f014dae2e5708633b5cecd34
- https://git.kernel.org/stable/c/e09689286385a66311ac6922af95339d7a3cef8d
- https://git.kernel.org/stable/c/de988c7a31f0774f07894cfe4802996f318e2870
- https://git.kernel.org/stable/c/da48bc4461b8a5ebfb9264c9b191a701d8e99009
- https://ubuntu.com/security/CVE-2026-53329
- https://www.cve.org/CVERecord?id=CVE-2026-53329
- https://git.kernel.org/linus/da48bc4461b8a5ebfb9264c9b191a701d8e99009
- https://security-tracker.debian.org/tracker/CVE-2026-53329
- https://ubuntu.com/security/notices/USN-8726-1
- https://ubuntu.com/security/notices/USN-8727-1
- https://ubuntu.com/security/notices/USN-8728-1
- https://ubuntu.com/security/notices/USN-8760-1
- https://ubuntu.com/security/notices/USN-8726-2