panic: kernel diagnostic assertion "cifp != NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/net/route.c", line 1078
Starting stack trace...
panic(ffffffff830e8420) at panic+0x1d0 sys/kern/subr_prf.c:229
__assert(ffffffff8309baed,ffffffff83016cf5,436,ffffffff8300dce2) at __assert+0x29
rtrequest(1,ffff80002a0e2598,4,ffff80002a0e2640,0) at rtrequest+0xdce sys/net/route.c:1078
rt_ifa_add(ffff8000012fed00,840100,ffff8000012fed58,0) at rt_ifa_add+0x22e sys/net/route.c:1273
in_ifinit(ffff80000121d000,ffff8000012fed00,ffff80002a0e28b0,1) at in_ifinit+0x4bd in_insert_prefix sys/netinet/in.c:770 [inline]
in_ifinit(ffff80000121d000,ffff8000012fed00,ffff80002a0e28b0,1) at in_ifinit+0x4bd sys/netinet/in.c:703
in_ioctl_change_ifaddr(8040691a,ffff80002a0e28a0,ffff80000121d000) at in_ioctl_change_ifaddr+0x92c sys/netinet/in.c:504
ifioctl(ffff80000130a038,8040691a,ffff80002a0e28a0,ffff800034588548) at ifioctl+0x1571 pru_control sys/sys/protosw.h:355 [inline]
ifioctl(ffff80000130a038,8040691a,ffff80002a0e28a0,ffff800034588548) at ifioctl+0x1571 sys/net/if.c:2449
sys_ioctl(ffff800034588548,ffff80002a0e2a80,ffff80002a0e29d0) at sys_ioctl+0x67c
syscall(ffff80002a0e2a80) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002a0e2a80) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x749c8ac7feb0, count: 247
End of stack trace.