What’s Vulnerable › Vulnerabilities

CVE-2023-52888: media: mediatek: vcodec: Only free buffer VA that is not NULL

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-07-30 · updated 2026-10-30
• Weakness: CWE-415

Description

In the Linux kernel, the following vulnerability has been resolved: media: mediatek: vcodec: Only free buffer VA that is not NULL In the MediaTek vcodec driver, while mtk_vcodec_mem_free() is mostly called only when the buffer to free exists, there are some instances that didn't do the check and triggered warnings in practice. We believe those checks were forgotten unintentionally. Add the checks back to fix the warnings.

Affected products

• Linux kernel: from 4.10 before 6.6.39; from 6.7 before 6.9.9 — fixed in 6.6.39, 6.9.9
• Linux: 4.10 — fixed in 6.10

How to fix

Upgrade to a fixed version: Linux kernel 6.6.39, 6.9.9; Linux 6.10. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/303d01082edaf817ee2df53a40dca9da637a2c04
• https://git.kernel.org/stable/c/56d27b9fca840c68f67706e3cc5f2000c17bce39
• https://git.kernel.org/stable/c/5c217253c76c94f76d1df31d0bbdcb88dc07be91
• https://git.kernel.org/stable/c/eb005c801ec70ff4307727bd3bd6e8280169ef32
• https://git.kernel.org/stable/c/303d01082edaf817ee2df53a40dca9da637a2c04
• https://git.kernel.org/stable/c/5c217253c76c94f76d1df31d0bbdcb88dc07be91
• https://git.kernel.org/stable/c/eb005c801ec70ff4307727bd3bd6e8280169ef32

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