High severity7.5NVD Advisory· Published Jan 19, 2022· Updated Jun 17, 2026
CVE-2021-38787
CVE-2021-38787
Description
There is an integer overflow in the ION driver "/dev/ion" of Allwinner R818 SoC Android Q SDK V1.0 that could use the ioctl cmd "COMPAT_ION_IOC_SUNXI_FLUSH_RANGE" to cause a system crash (denial of service).
Affected products
3- cpe:2.3:a:allwinnertech:android_q_sdk:1.0:*:*:*:*:*:*:*
- Allwinner/R818 SoC Android Q SDKdescription
- Range: V1.0
Patches
Vulnerability mechanics
References
4- github.com/pokerfacett/MY_CVE_CREDIT/blob/master/Allwinner%20R818%20SoC%EF%BC%9AION%20Driver%20Integer%20Overflow.mdnvdBroken LinkThird Party Advisory
- vul.wangan.com/a/CNVD-2021-49171nvdThird Party Advisory
- www.allwinnertech.com/index.phpnvdProductVendor Advisory
- www.cnvd.org.cn/flaw/show/CNVD-2021-49171nvdThird Party Advisory
News mentions
0No linked articles in our index yet.