Vulnerability details
CVE-2026-53329
Linux Linux
drm/amd/display: Use krealloc_array() in dal_vector_reserve()
CVSS 3.1
7.0High
Official 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 scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.0High | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | 4.15 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 2004f45ef83f07f43f5da6ede780b08068c7583d ≤ v < 31180638a33acad12c863132704a76536fb66211 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 2004f45ef83f07f43f5da6ede780b08068c7583d ≤ v < b15825deac1acff72638bbc8f05b89ceef8dfb13 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 2004f45ef83f07f43f5da6ede780b08068c7583d ≤ v < 201151e120f0062bcda21cad5d007b82725ad23b | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 2004f45ef83f07f43f5da6ede780b08068c7583d ≤ v < 9540b0a4d13e4ede64ae1197d66a176d2149daa9 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 2004f45ef83f07f43f5da6ede780b08068c7583d ≤ v < e09689286385a66311ac6922af95339d7a3cef8d | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 2004f45ef83f07f43f5da6ede780b08068c7583d ≤ v < de988c7a31f0774f07894cfe4802996f318e2870 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 2004f45ef83f07f43f5da6ede780b08068c7583d ≤ v < da48bc4461b8a5ebfb9264c9b191a701d8e99009 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 2004f45ef83f07f43f5da6ede780b08068c7583d ≤ v < a914aa802669e073f014dae2e5708633b5cecd34 | CVEProject cvelistV5 (CNA) |
References and advisories
8- 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
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Details
- Published
- 2026-07-01
- Last updated
- 2026-10-19
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
0.14%
Probability of exploitation in 30 days
3.9%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-190Integer Overflow or Wraparound