CVE-2021-39686

kernel: race condition in the Android binder driver could lead to incorrect security checks

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Severity

Important

Red Hat Product Security

8.4

CVSS 3.1

Review impact separately from score.

Published · March 7, 2022

Updated · February 19, 2026

Description

A race condition was found in the Linux kernel Android binder driver. The driver is not included to the other kernels, apart from Android devices. This issue could allow a local user to crash the system or potentially escalate their privileges on the system.

Statement

No shipped kernel version was seen affected by this problem. These files are not built in our source code.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 8.4
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE-366 · Race Condition within a Thread