kernel: protection fault trap, code=0

Stopped at      witness_checkorder+0xa9:        movl    0x18(%r14),%r15d

ddb{0}> serialport: Connected to syzkaller.us-central1-b.ci-openbsd-setuid-7 port 1 (session ID: 20e0ea8c0abaca67c6b8a4369f752cfb7102e070bd32b29ed390757801cf932d, active connections: 1).