CVE-2021-39801: Google Android

High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days.

In ion_ioctl of ion-ioctl.c, there is a possible use after free due to improper locking. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-209791720References: Upstream kernel

Affected products

• Google Android: affected versions not specified

Published 2022-04-12. Last modified 2026-06-17.