CVE-2021-39802

In change_pte_range of mprotect.c , there is a possible way to make a shared mmap writable due to a permissions bypass. 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-213339151References: Upstream kernel

• CWE-863

• https://source.android.com/security/bulletin/2022-04-01Patch, Vendor Advisory
• https://source.android.com/security/bulletin/2022-04-01Patch, Vendor Advisory

Published

Apr 12, 2022

Last Modified

Jun 17, 2026

Status

Modified

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