panic: kernel diagnostic assertion "!ISSET(rt->rt_flags, RTF_LOCAL)" failed: file "/syzkaller/managers/multicore/kernel/sys/netinet6/nd6.c", line 687
Starting stack trace...
panic(ffffffff830e5f78) at panic+0x1d0 sys/kern/subr_prf.c:229
__assert(ffffffff830981da,ffffffff830af5f0,2af,ffffffff83060007) at __assert+0x29
nd6_free(fffffd8068de3c50,0) at nd6_free+0x2cd sys/netinet6/nd6.c:687
nd6_purge(ffff8000011a7800) at nd6_purge+0x180
in6_ifdetach(ffff8000011a7800) at in6_ifdetach+0x106 sys/netinet6/in6_ifattach.c:437