In stpropnci_prop_st_build_set_custom_polling_cmd of stpropnci_prop_st.cc, there is a possible way to trigger an out of bounds write into global memory due to a missing bounds 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/docs/security/bulletin/pixel/2026/2026-11-01