Medium severity5.5NVD Advisory· Published Apr 12, 2022· Updated Jun 17, 2026
CVE-2021-39800
CVE-2021-39800
Description
In ion_ioctl of ion-ioctl.c, there is a possible way to leak kernel head data due to a use after free. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-208277166References: Upstream kernel
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Affected products
2- Android/Android kerneldescription
Patches
Vulnerability mechanics
References
1- source.android.com/security/bulletin/2022-04-01nvdPatchVendor Advisory
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