In createDontSendToRestrictedAppsBundle of PendingIntentUtils.java, there is a possible background activity launch due to a missing check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
https://source.android.com/security/bulletin/2023-12-01
https://android.googlesource.com/platform/frameworks/base/+/d98abeef8f870b60510feafbadcea0c2f9cbae65