Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32h5/STM32H523/PSSI/PSSI_RIS#0x0
OVR_RIS=B_0x0
PSSI raw interrupt status register
Data buffer overrun/underrun raw interrupt status
0 (B_0x0): No overrun/underrun occurred
1 (B_0x1): An overrun/underrun occurred: overrun in receive mode, underrun in transmit mode.
https://github.com/modm-io/cmsis-svd-stm32