CVE-2021-39801

HIGH

Android - Use-After-Free in ion_ioctl

Title source: llm
STIX 2.1

Description

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

References (1)

Core 1
Core References
Patch, Vendor Advisory x_refsource_misc
https://source.android.com/security/bulletin/2022-04-01

Scores

CVSS v3 7.8
EPSS 0.0011
EPSS Percentile 1.8%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-416 CWE-667
Status published
Products (1)
google/android
Published Apr 12, 2022
Tracked Since Feb 18, 2026