uvm_fault(0xffffffff8391b9b0, 0xffff80000175a000, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at      memcpy+0x19:    repe movsq      (%rsi),%es:(%rdi)
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*155540  66057      0           0  0x4000000    1K syz-executor
 163925  15052      0    0x100002        0x1    0  arp
memcpy() at memcpy+0x19
rtm_msg1(14,ffff800038800f28) at rtm_msg1+0x306 sys/net/rtsock.c:1627
rtm_addr(14,ffff800001759f00) at rtm_addr+0xb9 sys/net/rtsock.c:-1
in6_update_ifa(ffff800000c02800,ffff800038801340,ffff800001759f00) at in6_update_ifa+0x199a sys/netinet6/in6.c:741
in6_ioctl_change_ifaddr(8080691a,ffff800038801340,ffff800000c02800) at in6_ioctl_change_ifaddr+0x64e sys/netinet6/in6.c:352
ifioctl(ffff8000017b6f30,8080691a,ffff800038801340,ffff800031004d38) at ifioctl+0x16d2 pru_control sys/sys/protosw.h:353 [inline]
ifioctl(ffff8000017b6f30,8080691a,ffff800038801340,ffff800031004d38) at ifioctl+0x16d2 sys/net/if.c:2480
sys_ioctl(ffff800031004d38,ffff800038801520,ffff800038801470) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1
syscall(ffff800038801520) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff800038801520) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:765
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xb5a3a369c0, count: 6
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