CVE-2021-39800: Google Android

Medium severity, CVSS 5.5. EPSS: 0.1% chance of exploitation in the next 30 days.

In ion_ioctl of ion-ioctl.c, there is a possible way to leak kernel head data due to a use after free. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-208277166References: Upstream kernel

Affected products

• Google Android: affected versions not specified

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