In showLimitedSimFunctionWarningNotification of NotificationMgr.java, there is a possible permission bypass due to an unsafe PendingIntent. This could lead to local information disclosure with User execution privileges needed. User interaction is not needed for exploitation.
android.googlesource.com/platform/frameworks/opt/telephony/+/0126084de146b51a842d7604cddb3303f46cade7
android.googlesource.com/platform/packages/services/Telephony/+/11c41d321d0c2dc3631f37d2f8f3ebc745f454d2
android.googlesource.com/platform/packages/services/Telephony/+/4e6a25843d7ef14301eb8cb5985c84d54785fbc4
source.android.com/security/bulletin/2020-09-01