Vulnerability Description
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().
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.8, < 5.15.210 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/02f5e4db57c0cdd7bac89d503b301a093a0fa95cPatch
- https://git.kernel.org/stable/c/30165a09f76eaf34951c818eb5d9d6e4771d76f6Patch
- https://git.kernel.org/stable/c/4fc692dc6df5bc777cc1bcebf95179e28594875fPatch
- https://git.kernel.org/stable/c/5d563a5da8717629ae72f9eadf1e0e340bd1658bPatch
- https://git.kernel.org/stable/c/c034aa0b1ba5f49cbdf8ef193d6ec714d74aac27Patch
- https://git.kernel.org/stable/c/e0ce103e89d61eef70edc1d1ae3bfd4c0aacbc2ePatch
- https://git.kernel.org/stable/c/fd87d6966041e33ef7d2e5dc59f9a52b71c6ae5fPatch
FAQ
What is CVE-2026-53213?
CVE-2026-53213 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 c...
How severe is CVE-2026-53213?
CVE-2026-53213 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-53213?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.