Medium severity6.4NVD Advisory· Published Dec 15, 2021· Updated Jun 17, 2026
CVE-2021-39642
CVE-2021-39642
Description
In synchronous_process_io_entries of lwis_ioctl.c, there is a possible out of bounds write due to a race condition. 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-195731663References: N/A
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Affected products
3- Android/Android kerneldescription
Patches
Vulnerability mechanics
References
1- source.android.com/security/bulletin/pixel/2021-12-01nvdPatchVendor Advisory
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