Use-after-free vulnerability in extract_metadata of dm-android-verity.c allows local attackers to corrupt kernel memory and potentially escalate privileges.

Use-after-free vulnerability in extract_metadata of dm-android-verity.c allows local attackers to corrupt kernel memory and potentially escalate privileges.

CVE-2022-20571 · MEDIUM Severity

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

In extract_metadata of dm-android-verity.c, there is a possible way to corrupt kernel memory due to a use after free. 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-234030265References: Upstream kernel

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