CVE-2021-38785: Allwinnertech Android Q SDK

High severity, CVSS 7.5. EPSS: 1.8% chance of exploitation in the next 30 days.

There is a NULL pointer deference in the Allwinner R818 SoC Android Q SDK V1.0 camera driver /dev/cedar_dev that could use the ioctl cmd IOCTL_GET_IOMMU_ADDR to cause a system crash.

Affected products

Published 2022-01-18. Last modified 2026-06-17.