DF2471[ASYNC_BUS_TRANSIT chan=5]: sizeof(sdparam)=204 nchan=2 -> isp_param allocation 408 bytes + 4096 guard
DF2471: guard smashed=1 bytes first@+614 last@+614 (SDPARAM(isp,5) byte offset 1020..1224)
DF2471: RESULT=OOB sdparam WRITE past isp_param[nchan] (unvalidated channel)
--- controls ---
DF2471[ASYNC_BUS_RESET chan=0]: guard smashed=0 ... RESULT=clean
DF2471[ASYNC_BUS_RESET chan=1]: guard smashed=0 ... RESULT=clean
--- fixed source A/B ---
DF2471[ASYNC_BUS_TRANSIT chan=5]: guard smashed=0 ... RESULT=clean