CVE-2021-38787
HIGHAllwinner R818 SoC Android Q SDK V1.0 - Denial of Service via ION Driver Integer Overflow
Title source: llmDescription
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).
References (4)
Core 4
Core References
Product, Vendor Advisory x_refsource_misc
https://www.allwinnertech.com/index.php?c=product&a=index&id=92
Broken Link, Third Party Advisory x_refsource_misc
https://github.com/pokerfacett/MY_CVE_CREDIT/blob/master/Allwinner%20R818%20SoC%EF%BC%9AION%20Driver%20Integer%20Overflow.md
Third Party Advisory x_refsource_misc
https://www.cnvd.org.cn/flaw/show/CNVD-2021-49171
Third Party Advisory x_refsource_misc
https://vul.wangan.com/a/CNVD-2021-49171
Scores
CVSS v3
7.5
EPSS
0.0195
EPSS Percentile
77.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-190
Status
published
Products (1)
allwinnertech/android_q_sdk
1.0
Published
Jan 19, 2022
Tracked Since
Feb 18, 2026