panic: kernel diagnostic assertion "cifp != NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/net/route.c", line 1078
Starting stack trace...
panic(ffffffff82958c61) at panic+0x16f sys/kern/subr_prf.c:229
__assert(ffffffff8290d503,ffffffff82886e2f,436,ffffffff8287e0dc) at __assert+0x29 sys/kern/subr_prf.c:157
rtrequest(1,ffff80002e6f4aa8,4,ffff80002e6f4b50,0) at rtrequest+0xa23 sys/net/route.c:1078
rt_ifa_add(ffff800000eba900,840100,ffff800000eba958,0) at rt_ifa_add+0x1a7 sys/net/route.c:1273
in_ifinit(ffff800000deb000,ffff800000eba900,ffff800000eba958,1) at in_ifinit+0x368 in_insert_prefix sys/netinet/in.c:770 [inline]
in_ifinit(ffff800000deb000,ffff800000eba900,ffff800000eba958,1) at in_ifinit+0x368 sys/netinet/in.c:703
in_ioctl_change_ifaddr(8040691a,ffff80002e6f4db0,ffff800000deb000) at in_ioctl_change_ifaddr+0x68a sys/netinet/in.c:504
ifioctl(ffff800000efca78,8040691a,ffff80002e6f4db0,ffff80002bccb4b8) at ifioctl+0x106c pru_control sys/sys/protosw.h:378 [inline]
ifioctl(ffff800000efca78,8040691a,ffff80002e6f4db0,ffff80002bccb4b8) at ifioctl+0x106c sys/net/if.c:2449
sys_ioctl(ffff80002bccb4b8,ffff80002e6f4f90,ffff80002e6f4ee0) at sys_ioctl+0x4a9
syscall(ffff80002e6f4f90) at syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline]
syscall(ffff80002e6f4f90) at syscall+0x8cf sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x22595a52930, count: 247
End of stack trace.