{"id":"CVE-2021-39656","details":"In __configfs_open_file of file.c, there is a possible use-after-free due to improper locking. This could lead to local escalation of privilege in the kernel with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-174049066References: Upstream kernel","aliases":["A-174049066","PUB-A-174049066"],"modified":"2025-08-09T19:01:27Z","published":"2021-12-15T19:15:15Z","references":[{"type":"FIX","url":"https://source.android.com/security/bulletin/pixel/2021-12-01"}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"}]}