High severity7.5NVD Advisory· Published Jan 18, 2022· Updated Jun 17, 2026
CVE-2021-38785
CVE-2021-38785
Description
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
3- cpe:2.3:a:allwinnertech:android_q_sdk:1.0:*:*:*:*:*:*:*
- Allwinner/R818 SoC Android Q SDKdescription
- Range: 1.0
Patches
Vulnerability mechanics
References
4- vul.wangan.com/a/CNVD-2021-49170nvdThird Party Advisory
- www.allwinnertech.com/index.phpnvdProductVendor Advisory
- www.cnvd.org.cn/flaw/show/CNVD-2021-49170nvdThird Party Advisory
- github.com/pokerfacett/MY_CVE_CREDIT/blob/master/Allwinner%20R818%20SoC%EF%BC%9ACamera%20Driver%20has%20Null%20Pointer%20Dereference%20Vulnerability.mdnvdBroken Link
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