panic: kernel diagnostic assertion "cifp != NULL" failed: file "/syzkaller/managers/main/kernel/sys/net/route.c", line 1078
Starting stack trace...
panic(ffffffff82929e0e) at panic+0x159 sys/kern/subr_prf.c:229
__assert(ffffffff828e1086,ffffffff8288ccc9,436,ffffffff82850981) at __assert+0x29 sys/kern/subr_prf.c:157
rtrequest(1,ffff800033994eb8,4,ffff800033994f88,0) at rtrequest+0xb49 sys/net/route.c:1078
rt_ifa_add(ffff800000f42e00,840100,ffff800000f42e58,0) at rt_ifa_add+0x2b3 sys/net/route.c:1273
in_ifinit(ffff800000e8e000,ffff800000f42e00,ffff800000f42e58,1) at in_ifinit+0x368 in_insert_prefix sys/netinet/in.c:770 [inline]
in_ifinit(ffff800000e8e000,ffff800000f42e00,ffff800000f42e58,1) at in_ifinit+0x368 sys/netinet/in.c:703
in_ioctl_change_ifaddr(8040691a,ffff8000339951f0,ffff800000e8e000) at in_ioctl_change_ifaddr+0x67a sys/netinet/in.c:504
ifioctl(fffffd806ed2c5f0,8040691a,ffff8000339951f0,ffff80002fb227f0) at ifioctl+0x104c pru_control sys/sys/protosw.h:378 [inline]
ifioctl(fffffd806ed2c5f0,8040691a,ffff8000339951f0,ffff80002fb227f0) at ifioctl+0x104c sys/net/if.c:2449
sys_ioctl(ffff80002fb227f0,ffff8000339953d0,ffff800033995320) at sys_ioctl+0x4a5
syscall(ffff8000339953d0) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xcbb8379b680, count: 247
End of stack trace.
syncing disks...17 5 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1  giving up

dump to dev 4,1 not possible
rebooting...
SeaBIOS (version 1.8.2-google)
Total RAM Size = 0x0000000080000000 = 2048 MiB
CPUs found: 2     Max CPUs supported: 2
SeaBIOS (version 1.8.2-google)
Machine UUID e4c28bce-9379-8bb2-f2c8-a7cf484f58e0
found virtio-scsi at 0:3
virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0
virtio-scsi blksize=512 sectors=4194304 = 2048 MiB
drive 0x000f27f0: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304
Sending Seabios boot VM event.
Booting from Hard Disk 0...
>> OpenBSD/amd64 BOOT 3.65
boot> machine ddbcpu 0
machine: syntax error
boot> trace
|/-\|/-\|/booting hd0a:trace: -\|/open hd0a:trace: No such file or directory
 failed(2). will try /bsd
boot> machine ddbcpu 1
machine: syntax error
boot> trace