CVE-2026-53329
What it is
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)
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.1% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.1% in the next 30 days (EPSS).
- Severity: 7.0 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.1% · EPSS, next 30 days
- Weakness
- CWE-674
- Record status
- Modified
Affected
- Linux Kernel < 5.10.260
- Linux Kernel < 5.15.210
- Linux Kernel < 6.1.176
- Linux Kernel < 6.6.143
- Linux Kernel < 6.12.94
- Linux Kernel < 6.18.36
- Linux Kernel < 7.0.13
- Linux Kernel 7.1
Attack profile CVSS 3.1 · 7.0
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-53329.md and follow it. Check whether this project is affected by CVE-2026-53329. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/201151e120f0062bcda21cad5d007b82725ad23b
- https://git.kernel.org/stable/c/31180638a33acad12c863132704a76536fb66211
- https://git.kernel.org/stable/c/9540b0a4d13e4ede64ae1197d66a176d2149daa9
- https://git.kernel.org/stable/c/a914aa802669e073f014dae2e5708633b5cecd34
- https://git.kernel.org/stable/c/b15825deac1acff72638bbc8f05b89ceef8dfb13
- https://git.kernel.org/stable/c/da48bc4461b8a5ebfb9264c9b191a701d8e99009
- https://git.kernel.org/stable/c/de988c7a31f0774f07894cfe4802996f318e2870
- https://git.kernel.org/stable/c/e09689286385a66311ac6922af95339d7a3cef8d
References
- https://git.kernel.org/stable/c/201151e120f0062bcda21cad5d007b82725ad23b
- https://git.kernel.org/stable/c/31180638a33acad12c863132704a76536fb66211
- https://git.kernel.org/stable/c/9540b0a4d13e4ede64ae1197d66a176d2149daa9
- https://git.kernel.org/stable/c/a914aa802669e073f014dae2e5708633b5cecd34
- https://git.kernel.org/stable/c/b15825deac1acff72638bbc8f05b89ceef8dfb13
- https://git.kernel.org/stable/c/da48bc4461b8a5ebfb9264c9b191a701d8e99009
- https://git.kernel.org/stable/c/de988c7a31f0774f07894cfe4802996f318e2870
- https://git.kernel.org/stable/c/e09689286385a66311ac6922af95339d7a3cef8d