CVE-2026-53213 — CVE & Security Advisory Radar

🎯 CVE-2026-53213 LOW 3.1 🔥 EPSS 12% 🇪🇺 EUVD

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CVE-2026-53213 | 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:

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().

Klassifikation & Betroffenheit:

Linux Linux patch: 5.15.210Linux patch: 6.12.94Linux 6d45c81d229d71da54d374143e7d6abad4c0cf31 <e0ce103e89d61eef70edc1d1ae3bfd4c0aacbc2eLinux 6d45c81d229d71da54d374143e7d6abad4c0cf31 <02f5e4db57c0cdd7bac89d503b301a093a0fa95cLinux 6d45c81d229d71da54d374143e7d6abad4c0cf31 <30165a09f76eaf34951c818eb5d9d6e4771d76f6Linux 6d45c81d229d71da54d374143e7d6abad4c0cf31 <4fc692dc6df5bc777cc1bcebf95179e28594875fLinux patch: 6.6.143Linux 6d45c81d229d71da54d374143e7d6abad4c0cf31 <5d563a5da8717629ae72f9eadf1e0e340bd1658b

Improper Control of Generation of Code ('Code Injection') 🎯 Medium

The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

🛡️ Empfohlene Mitigation: Refactor your program so that you do not have to dynamically generate code.

Vollständige Definition bei MITRE ➔

⚔️ Typische Angriffsmuster (CAPEC):

CAPEC-35 · Leverage Executable Code in Non-Executab… (Very High) CAPEC-77 · Manipulating User-Controlled Variables (Very High) CAPEC-242 · Code Injection (High)

🎯 ATT&CK-Techniken (Kill-Chain-Verhalten):

T1027.006 · Obfuscated Files or Information: H… T1027.009 · Obfuscated Files or Information: E… T1564.009 · Hide Artifacts: Resource Forking

🧩 Ähnliche Schwachstellen (Hersteller/Klasse/Score-Band):

CVE-2021-47476 4.6 CVE-2024-24857 4.6 CVE-2024-24858 4.6 CVE-2024-24859 4.6 CVE-2024-24860 4.6

🩹 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 & Quellen:

🇪🇺 Original-Eintrag (ENISA EUVD) 🇺🇸 NVD-Eintrag

Ausnutzungs-Zeitleiste:

Reserviert 2026

Veröffentlicht 06/2026

Heute 08.09.

Veröffentlicht:25.06.2026

Aktualisiert:25.06.2026 08:39

Assigner (CNA):Linux

EUVD-ID:EUVD-2026-39304

CWE-94: Code Injection ✓ Offizieller Patch / Advisory verfügbar

💡 Gegenmaßnahme: Kernel-Paket aktualisieren (apt upgrade linux-image / yum update kernel) und System neu starten.

Tier	2026-08-29	2026-09-06
≥90 %	4	0
≥50 %	4	0
≥10 %	3	0
<10 %	304	300

3.1 LOW

🇪🇺 EUVD

EPSS

12%

CVE-2026-53213 💻 Lokal 🔓 Keine Authentifizierung nötig

Linux

CVE-2026-53213 | 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:

CWE-94: Code Injection ✓ Offizieller Patch / Advisory verfügbar

💡 Gegenmaßnahme: Kernel-Paket aktualisieren (apt upgrade linux-image / yum update kernel) und System neu starten.

25.06.2026

🛡️ Details ➔

Zero-Day & Vulnerability Intelligence Hub