{"id":"PUB-A-174049006","details":"In regmap_exit of regmap.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.","aliases":["A-174049006","CVE-2021-39649"],"modified":"2026-09-21T16:00:45.521740994Z","published":"2021-12-01T00:00:00Z","references":[{"type":"ADVISORY","url":"https://source.android.com/security/bulletin/2021-12-01"}],"affected":[{"package":{"name":":unknown:","ecosystem":"Android"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":":0"},{"fixed":":2021-12-05"}]}],"versions":["Kernel"],"ecosystem_specific":{"types":["EoP"],"severity":"Moderate","spl":"2021-12-05"},"database_specific":{"source":"https://storage.googleapis.com/android-osv/PUB-A-174049006.json"}}],"schema_version":"1.9.0"}