In aio_poll_complete_work of aio.c, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
android.googlesource.com/kernel/common/+/363bee27e258
android.googlesource.com/kernel/common/+/42288cb44c4b
android.googlesource.com/kernel/common/+/50252e4b5e98
android.googlesource.com/kernel/common/+/9537bae0da1f
android.googlesource.com/kernel/common/+/a880b28a71e3
source.android.com/security/bulletin/2022-03-01