---
cve: "CVE-2026-53213"
severity: "LOW"
cvss: 3.1
epss: "12%"
vendor: "Linux"
kev: false
exploited: false
published: "2026-06-25 09:16:38"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-08T06:08:36+02:00"
---

# CVE-2026-53213

> 3.1 LOW

## Beschreibung

In the Linux kernel, the following vulnerability has been resolved:

drm/vc4: fix krealloc() memory leak

Don't just overwrite the original pointer passed to krealloc()
with its return value without checking latter:

    MEM = krealloc(MEM, SZ, GFP);

If krealloc() returns NULL, that erases the pointer
to the still allocated memory, hence leaks this memory.
Instead, use a temporary variable, check it's not NULL
and only then assign it to the original pointer:

    TMP = krealloc(MEM, SZ, GFP);
    if (!TMP) return;
    MEM = TMP;

While on it, use krealloc_array().

## Patch verfügbar (OSV)

- Kernel ≥ 5.15.210
- Kernel ≥ 6.1.176
- Kernel ≥ 6.6.143
- Kernel ≥ 6.12.94
- Kernel ≥ 6.18.36
- Kernel ≥ 7.0.13

## Referenzen

- <https://git.kernel.org/stable/c/30165a09f76eaf34951c818eb5d9d6e4771d76f6>
- <https://git.kernel.org/stable/c/fd87d6966041e33ef7d2e5dc59f9a52b71c6ae5f>
- <https://git.kernel.org/stable/c/e0ce103e89d61eef70edc1d1ae3bfd4c0aacbc2e>
- <https://git.kernel.org/stable/c/c034aa0b1ba5f49cbdf8ef193d6ec714d74aac27>
- <https://git.kernel.org/stable/c/02f5e4db57c0cdd7bac89d503b301a093a0fa95c>
- <https://git.kernel.org/stable/c/4fc692dc6df5bc777cc1bcebf95179e28594875f>
- <https://git.kernel.org/stable/c/5d563a5da8717629ae72f9eadf1e0e340bd1658b>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-53213) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_