uvm_fault(0xffffffff82de8758, 0xffff800000e81010, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at      arp_rtrequest+0x4e3:    movzwl  0xc(%r15,%rbx,1),%ecx
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*196468  53689      0   0x8000000  0x4000000    0  syz-executor.4
arp_rtrequest(ffff800000de0800,1,fffffd8075b539c0) at arp_rtrequest+0x4e3 arprequest sys/netinet/if_ether.c:281 [inline]
arp_rtrequest(ffff800000de0800,1,fffffd8075b539c0) at arp_rtrequest+0x4e3 sys/netinet/if_ether.c:184
rtrequest(1,ffff80002c12f008,1,ffff80002c12f0d8,0) at rtrequest+0x9dc sys/net/route.c:1103
rt_ifa_add(ffff800000e07500,240004,ffff800000e07558,0) at rt_ifa_add+0x2b3 sys/net/route.c:1273
rt_ifa_addlocal(ffff800000e07500) at rt_ifa_addlocal+0x141 sys/net/route.c:1381
in_ifinit(ffff800000de0800,ffff800000e07500,ffff80002c12f3a0,1) at in_ifinit+0x1c1 sys/netinet/in.c:669
in_ioctl_change_ifaddr(8040691a,ffff80002c12f390,ffff800000de0800) at in_ioctl_change_ifaddr+0x67a sys/netinet/in.c:504
ifioctl(fffffd8067e1c430,8040691a,ffff80002c12f390,ffff80002a6e39d0) at ifioctl+0x104c pru_control sys/sys/protosw.h:378 [inline]
ifioctl(fffffd8067e1c430,8040691a,ffff80002c12f390,ffff80002a6e39d0) at ifioctl+0x104c sys/net/if.c:2449
sys_ioctl(ffff80002a6e39d0,ffff80002c12f570,ffff80002c12f4c0) at sys_ioctl+0x4a5
syscall(ffff80002c12f570) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7a38d4d0250, count: 5
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports.  Insufficient info makes it difficult to find and fix bugs.