CVE-2026-53329
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)
Metadata
Severity & Metrics
No CVSS data available.
Affected products (2)
| Vendor | Product | Platform | Versions |
|---|---|---|---|
| Linux | Linux | — | 2004f45ef83f07f43f5da6ede780b08068c7583d < 31180638a33acad12c863132704a76536fb66211, 2004f45ef83f07f43f5da6ede780b08068c7583d < b15825deac1acff72638bbc8f05b89ceef8dfb13, 2004f45ef83f07f43f5da6ede780b08068c7583d < 201151e120f0062bcda21cad5d007b82725ad23b, 2004f45ef83f07f43f5da6ede780b08068c7583d < a914aa802669e073f014dae2e5708633b5cecd34 … |
| Linux | Linux | — | 4.15, 0 < 4.15, 5.15.210 ≤ 5.15.*, 6.1.176 ≤ 6.1.* … |
References (7)
- 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