syzbot

uvm_fault(0xffffffff83997eb0, 0xffff8000014e502a, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at      arp_rtrequest+0x6a4:    movzwl  0xc(%rcx,%rbx,1),%ecx
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*135187   2210      0           0  0x4000000    0  syz-executor
arp_rtrequest(ffff80000019f058,1,fffffd806c9003d0) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline]
arp_rtrequest(ffff80000019f058,1,fffffd806c9003d0) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226
rtrequest(1,ffff80003c955470,0,ffff80003c9553e0,16) at rtrequest+0xf08 sys/net/route.c:1114
rtm_output(ffff800001429800,ffff80003c955518,ffff80003c955470,0,16) at rtm_output+0x91a sys/net/rtsock.c:953
route_output(fffffd806d13cf00,ffff80000152ad70) at route_output+0xa2b sys/net/rtsock.c:858
route_send(ffff80000152ad70,fffffd806d13cf00,0,0) at route_send+0xd7 sys/net/rtsock.c:322
sosend(ffff80000152ad70,0,ffff80003c9556c8,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1
sendit(ffff80002f0fca90,3,ffff80003c9557c0,808,ffff80003c955860) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785
sys_sendto(ffff80002f0fca90,ffff80003c955910,ffff80003c955860) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563
syscall(ffff80003c955910) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80003c955910) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x87215e3a4a0, count: 5
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