CVE-2026-53329drm/amd/display: Use krealloc_array() in dal_vector_reserve()
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- 7.0 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Analyzed
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 2004f45ef83f07f43f5da6ede780b08068c7583d before 9540b0a4d13e4ede64ae1197d66a176d2149daa9; from 2004f45ef83f07f43f5da6ede780b08068c7583d before 31180638a33acad12c863132704a76536fb66211; from 2004f45ef83f07f43f5da6ede780b08068c7583d before b15825deac1acff72638bbc8f05b89ceef8dfb13; from 2004f45ef83f07f43f5da6ede780b08068c7583d before 201151e120f0062bcda21cad5d007b82725ad23b; from 2004f45ef83f07f43f5da6ede780b08068c7583d before a914aa802669e073f014dae2e5708633b5cecd34; from 2004f45ef83f07f43f5da6ede780b08068c7583d before e09689286385a66311ac6922af95339d7a3cef8d; from 2004f45ef83f07f43f5da6ede780b08068c7583d before de988c7a31f0774f07894cfe4802996f318e2870; from 2004f45ef83f07f43f5da6ede780b08068c7583d before da48bc4461b8a5ebfb9264c9b191a701d8e99009 | CNA record |
linux linux_kernel linux:linux_kernel | from 4.15 before 5.10.260; from 5.11 before 5.15.210; from 5.16 before 6.1.176; from 6.2 before 6.6.143; from 6.7 before 6.12.94; from 6.13 before 6.18.36; from 6.19 before 7.0.13; 7.1; and 5 more ranges | NVD |
References
- https://git.kernel.org/stable/c/9540b0a4d13e4ede64ae1197d66a176d2149daa9patch
- https://git.kernel.org/stable/c/31180638a33acad12c863132704a76536fb66211patch
- https://git.kernel.org/stable/c/b15825deac1acff72638bbc8f05b89ceef8dfb13patch
- https://git.kernel.org/stable/c/201151e120f0062bcda21cad5d007b82725ad23bpatch
- https://git.kernel.org/stable/c/a914aa802669e073f014dae2e5708633b5cecd34patch
- https://git.kernel.org/stable/c/e09689286385a66311ac6922af95339d7a3cef8dpatch
- https://git.kernel.org/stable/c/de988c7a31f0774f07894cfe4802996f318e2870patch
- https://git.kernel.org/stable/c/da48bc4461b8a5ebfb9264c9b191a701d8e99009patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.