panic: kernel diagnostic assertion "cifp != NULL" failed: file "/syzkaller/managers/main/kernel/sys/net/route.c", line 1078
Starting stack trace...
panic(ffffffff830b3bb3) at panic+0x1ba sys/kern/subr_prf.c:229
__assert(ffffffff830692ba,ffffffff83019fe7,436,ffffffff82fdda55) at __assert+0x29
rtrequest(1,ffff800037614b18,4,ffff800037614be8,0) at rtrequest+0xf4d sys/net/route.c:1078
rt_ifa_add(ffff8000015f5e00,840100,ffff8000015f5e58,0) at rt_ifa_add+0x38d sys/net/route.c:1273
in_ifinit(ffff800001589000,ffff8000015f5e00,ffff800037614e60,1) at in_ifinit+0x4bd in_insert_prefix sys/netinet/in.c:770 [inline]
in_ifinit(ffff800001589000,ffff8000015f5e00,ffff800037614e60,1) at in_ifinit+0x4bd sys/netinet/in.c:703
in_ioctl_change_ifaddr(8040691a,ffff800037614e50,ffff800001589000) at in_ioctl_change_ifaddr+0x92c sys/netinet/in.c:504
ifioctl(fffffd806d17a9f0,8040691a,ffff800037614e50,ffff80002a4d1200) at ifioctl+0x1519 pru_control sys/sys/protosw.h:355 [inline]
ifioctl(fffffd806d17a9f0,8040691a,ffff800037614e50,ffff80002a4d1200) at ifioctl+0x1519 sys/net/if.c:2449
sys_ioctl(ffff80002a4d1200,ffff800037615030,ffff800037614f80) at sys_ioctl+0x678
syscall(ffff800037615030) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7901ff969650, count: 247
End of stack trace.