CVE-2021-39736: Google Android

Medium severity, CVSS 6.7. EPSS: 0.1% chance of exploitation in the next 30 days.

In prepare_io_entry and prepare_response of lwis_ioctl.c and lwis_periodic_io.c, there is a possible out of bounds write due to an integer overflow. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-205995773References: N/A

Affected products

• Google Android: affected versions not specified

Published 2022-03-16. Last modified 2026-06-17.