panic: kernel diagnostic assertion "cifp != NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/net/route.c", line 1089 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 87029 98054 0 0 0 0 syz-executor *209378 98054 0 0 0x4000000 1K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8346cf54) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff83419810,ffffffff8338559b,441,ffffffff8337afc5) at __assert+0x29 sys/kern/subr_prf.c:-1 rtrequest(1,ffff800035ff70c8,4,ffff800035ff7170,0) at rtrequest+0xe51 sys/net/route.c:1089 rt_ifa_add(ffff8000014e3100,840100,ffff8000014e3158,0) at rt_ifa_add+0x22e sys/net/route.c:1284 in_ifinit(ffff80000149c800,ffff8000014e3100,ffff800035ff73e0,1) at in_ifinit+0x4bd in_insert_prefix sys/netinet/in.c:767 [inline] in_ifinit(ffff80000149c800,ffff8000014e3100,ffff800035ff73e0,1) at in_ifinit+0x4bd sys/netinet/in.c:700 in_ioctl_change_ifaddr(8040691a,ffff800035ff73d0,ffff80000149c800) at in_ioctl_change_ifaddr+0x92c sys/netinet/in.c:501 ifioctl(ffff80000151fc78,8040691a,ffff800035ff73d0,ffff80003b8247d8) at ifioctl+0x1571 pru_control sys/sys/protosw.h:352 [inline] ifioctl(ffff80000151fc78,8040691a,ffff800035ff73d0,ffff80003b8247d8) at ifioctl+0x1571 sys/net/if.c:2453 sys_ioctl(ffff80003b8247d8,ffff800035ff75b0,ffff800035ff7500) at sys_ioctl+0x5c3 sys/kern/sys_generic.c:-1 syscall(ffff800035ff75b0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800035ff75b0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe9a8de696d0, count: 4 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: kernel diagnostic assertion "cifp != NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/net/route.c", line 1089 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8346cf54) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff83419810,ffffffff8338559b,441,ffffffff8337afc5) at __assert+0x29 sys/kern/subr_prf.c:-1 rtrequest(1,ffff800035ff70c8,4,ffff800035ff7170,0) at rtrequest+0xe51 sys/net/route.c:1089 rt_ifa_add(ffff8000014e3100,840100,ffff8000014e3158,0) at rt_ifa_add+0x22e sys/net/route.c:1284 in_ifinit(ffff80000149c800,ffff8000014e3100,ffff800035ff73e0,1) at in_ifinit+0x4bd in_insert_prefix sys/netinet/in.c:767 [inline] in_ifinit(ffff80000149c800,ffff8000014e3100,ffff800035ff73e0,1) at in_ifinit+0x4bd sys/netinet/in.c:700 in_ioctl_change_ifaddr(8040691a,ffff800035ff73d0,ffff80000149c800) at in_ioctl_change_ifaddr+0x92c sys/netinet/in.c:501 ifioctl(ffff80000151fc78,8040691a,ffff800035ff73d0,ffff80003b8247d8) at ifioctl+0x1571 pru_control sys/sys/protosw.h:352 [inline] ifioctl(ffff80000151fc78,8040691a,ffff800035ff73d0,ffff80003b8247d8) at ifioctl+0x1571 sys/net/if.c:2453 sys_ioctl(ffff80003b8247d8,ffff800035ff75b0,ffff800035ff7500) at sys_ioctl+0x5c3 sys/kern/sys_generic.c:-1 syscall(ffff800035ff75b0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800035ff75b0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe9a8de696d0, count: -11 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800035ff6ec0 rbx 0xffff8000299dedd7 rdx 0xffff800001457c80 rcx 0xffff80003b8247d8 rax 0xffff8000299ddff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xc168f3f39d9945b8 r11 0x351de5bda692e8bd r12 0xffff8000299debd8 r13 0 r14 0 r15 0x1 rip 0xffffffff81e67865 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff800035ff6eb0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=209378 pid=98054 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003b825c58,0xffff80003b824558 process=0xffff80003b816bb8 user=0xffff800035ff2000, vmspace=0xfffffd800b027d20 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 6075 171042 28773 0 2 0 syz-executor 93136 357570 77715 0 2 0 syz-executor 42382 301610 87586 0 2 0 syz-executor 42382 204547 87586 0 3 0x4000080 fsleep syz-executor 55839 96588 23037 0 2 0 syz-executor 55839 423575 23037 0 3 0x4000000 biowait syz-executor 98054 87029 82454 0 7 0 syz-executor *98054 209378 82454 0 7 0x4000000 syz-executor 16021 302576 72556 0 2 0 syz-executor 16021 511162 72556 0 2 0x4000000 syz-executor 16021 156312 72556 0 3 0x4000080 fsleep syz-executor 274 295689 44798 0 3 0x80 nanoslp syz-executor 274 353228 44798 0 3 0x4000080 kqsel syz-executor 274 136282 44798 0 3 0x4000000 smrbar syz-executor 62723 456755 0 0 3 0x14200 acct acct 75047 344404 1382 0 3 0x3000 suspend syz-executor 75047 208625 1382 0 3 0x4081000 biowait syz-executor 75047 4415 1382 0 3 0x4081000 inode syz-executor 23037 244084 45152 0 3 0x82 nanoslp syz-executor 59507 95391 1 0 3 0x100083 ttyopn getty 72556 99042 45152 0 2 0x2 syz-executor 94034 94710 0 0 3 0x14200 bored sosplice 77715 380148 45152 0 3 0x82 nanoslp syz-executor 87586 265132 45152 0 3 0x82 nanoslp syz-executor 1382 290917 45152 0 3 0x82 wait syz-executor 44798 161523 45152 0 3 0x82 nanoslp syz-executor 28773 218947 45152 0 3 0x82 nanoslp syz-executor 82454 356954 45152 0 3 0x82 nanoslp syz-executor 45152 372176 65775 0 3 0x82 kqread syz-executor 65775 340532 63601 0 3 0x10008a sigsusp ksh 63601 350653 81643 0 3 0x98 kqread sshd-session 81643 365779 53391 0 3 0x92 kqread sshd-session 53391 242293 1 0 3 0x88 kqread sshd 65922 310109 93955 74 3 0x1100092 bpf pflogd 93955 377990 1 0 3 0x80 sbwait pflogd 23016 369247 61262 73 3 0x1100090 kqread syslogd 61262 503876 1 0 3 0x100082 sbwait syslogd 99168 302176 1 0 3 0x100080 kqread resolvd 85158 262988 38375 77 3 0x100092 kqread dhcpleased 3170 345489 38375 77 3 0x100092 kqread dhcpleased 38375 303075 1 0 3 0x80 kqread dhcpleased 63281 477176 0 0 3 0x14200 bored smr 18938 110035 0 0 2 0x14200 zerothread 74877 388571 0 0 3 0x14200 aiodoned aiodoned 84959 191219 0 0 3 0x14200 syncer update 93017 516552 0 0 3 0x14200 cleaner cleaner 1316 485497 0 0 3 0x14200 reaper reaper 6716 272278 0 0 3 0x14200 pgdaemon pagedaemon 63803 8541 0 0 3 0x14200 bored viomb 98286 423724 0 0 3 0x40014200 acpi0 acpi0 20246 232893 0 0 3 0x40014200 idle1 3684 89420 0 0 3 0x14200 bored softnet7 78540 472653 0 0 3 0x14200 bored softnet6 5704 406618 0 0 3 0x14200 bored softnet5 44570 287052 0 0 3 0x14200 bored softnet4 31188 93047 0 0 3 0x14200 bored softnet3 15741 223566 0 0 3 0x14200 bored softnet2 40893 266259 0 0 3 0x14200 bored softnet1 64440 482216 0 0 3 0x14200 bored softnet0 30720 21425 0 0 2 0x14200 systqmp 31480 178580 0 0 3 0x14200 bored systq 78839 83775 0 0 3 0x14200 tmoslp softclockmp 52017 70381 0 0 3 0x40014200 tmoslp softclock 98035 18044 0 0 3 0x40014200 idle0 1 43275 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 55839 (syz-executor) thread 0xffff80002a3c6a78 (423575) Process 98054 (syz-executor) thread 0xffff80003b8247d8 (209378) Process 274 (syz-executor) thread 0xffff80003b824f88 (136282) Process 75047 (syz-executor) thread 0xffff8000ffff2010 (208625) ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10268 11202K 11832K 166960K 14992 0 pcb 17 16K 17K 166960K 416 0 rtable 229 11K 12K 166960K 625 0 pf 38 18K 22K 166960K 164 0 ifaddr 40 7K 8K 166960K 113 0 ifgroup 54 2K 3K 166960K 191 0 sysctl 4 1K 9K 166960K 23 0 counters 66 36K 37K 166960K 202 0 ioctlops 0 0K 8K 166960K 1793 0 iov 0 0K 36K 166960K 128 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1417 89K 90K 166960K 3176 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 33 0 VM map 2 1K 1K 166960K 2 0 sem 11 0K 0K 166960K 168 0 dirhash 12 2K 2K 166960K 39 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 110K 166960K 2019 0 sigio 0 0K 0K 166960K 38 0 proc 72 91K 128K 166960K 789 0 subproc 72 4K 4K 166960K 93 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 256 0 in_multi 87 6K 7K 166960K 194 0 ether_multi 1 0K 0K 166960K 23 0 mrt 1 0K 0K 166960K 10 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 103 466K 466K 166960K 103 0 exec 0 0K 1K 166960K 805 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 230 152K 166K 166960K 20086 0 UVM aobj 71 7K 7K 166960K 76 0 pinsyscall 43 86K 105K 166960K 3174 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 100 0 NDP 11 0K 2K 166960K 80 0 temp 81 8684K 8756K 166960K 77445 0 kqueue 14 22K 30K 166960K 360 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 26 0 0 1 0 1 1 0 8 0 rtpcb 120 221 0 218 3 2 1 3 0 8 0 rtentry 176 174 0 85 5 0 5 5 0 8 0 unpcb 144 1480 0 1396 13 8 5 6 0 8 1 syncache 336 7 0 7 1 1 0 1 0 8 0 tcpqe 32 9 0 9 2 2 0 1 0 8 0 tcpcb 736 684 0 678 16 12 4 7 0 8 3 arp 128 23 0 10 1 0 1 1 0 8 0 inpcb 328 2350 0 2339 22 13 9 9 0 8 8 nd6 144 34 0 14 1 0 1 1 0 8 0 pkpcb 40 11 0 11 4 3 1 1 0 8 1 kcovpl 48 10 0 2 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 0 1 1 0 8 1 ppxss 1192 52 0 52 3 2 1 1 0 8 1 pppxif 1504 3 0 3 2 1 1 1 0 8 1 pfstscr 40 1 0 1 1 1 0 1 0 8 0 pffrag 232 21 0 13 1 0 1 1 0 482 0 pffrnode 88 18 0 12 1 0 1 1 0 8 0 pffrent 40 33 0 25 1 0 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfrktable 1344 3 0 1 1 0 1 1 0 8 0 pfanchor 1288 3 0 2 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 103 0 47 1 0 1 1 0 8 0 pfstkey 128 105 0 49 3 0 3 3 0 8 0 pfstate 384 104 0 48 7 0 7 7 0 8 0 pfrule 1344 25 0 16 2 0 2 2 0 8 0 rttmr 136 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 826 0 390 33 4 29 32 0 8 1 art_table 40 830 0 390 6 0 6 6 0 8 0 art_node 32 173 0 95 1 0 1 1 0 8 0 sysvmsgpl 40 47 0 42 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 165 0 156 1 0 1 1 0 8 0 shmpl 112 73 0 5 2 0 2 2 0 8 0 dirhash 1024 35 0 18 3 0 3 3 0 8 0 dino2pl 256 5051 0 3544 96 0 96 96 0 8 0 ffsino 288 5051 0 3544 109 0 109 109 0 8 0 nchpl 144 7863 0 6168 64 0 64 64 0 8 0 rtmask 32 11 0 11 4 4 0 1 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 28243 0 28242 3 1 2 2 0 8 1 percpumem 16 116 0 68 1 0 1 1 0 8 0 pfiaddrpl 120 1 0 0 1 0 1 1 0 8 0 kstatmem 264 116 0 92 5 3 2 3 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 6 0 6 3 3 0 1 0 8 0 scxspl 216 54431 0 54429 11 10 1 8 1 8 0 plimitpl 152 564 0 546 1 0 1 1 0 8 0 sigapl 424 2324 0 2268 7 0 7 7 0 8 0 knotepl 120 631 0 0 20 0 20 20 0 8 0 kqueuepl 224 933 0 922 11 6 5 5 0 8 4 pipepl 336 258 0 231 3 0 3 3 0 8 0 fdescpl 520 2292 0 2260 3 0 3 3 0 8 0 filepl 160 16256 0 15919 25 10 15 18 0 8 0 lockfpl 104 1646 0 1595 5 3 2 2 0 8 0 lockfspl 48 666 0 615 1 0 1 1 0 8 0 sessionpl 144 26 0 17 1 0 1 1 0 8 0 pgrppl 48 66 0 49 1 0 1 1 0 8 0 ucredpl 104 2810 0 2797 1 0 1 1 0 8 0 zombiepl 144 2269 0 2268 2 1 1 1 0 8 0 processpl 1240 2324 0 2268 5 0 5 5 0 8 0 procpl 656 5618 0 5553 9 2 7 7 0 8 1 sosppl 168 15 0 15 4 3 1 1 0 8 1 sockpl 728 4151 0 4053 35 22 13 16 0 8 4 mcl64k 65536 8 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 108 0 0 14 1 13 14 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 54 0 0 7 1 6 6 0 8 0 mtagpl 96 38 0 0 1 0 1 1 0 8 0 mbufpl 256 300 0 0 17 0 17 17 0 8 0 bufpl 280 22371 0 16229 439 0 439 439 0 8 0 anonpl 32 15251 0 0 123 0 123 123 0 246 0 amapchunkpl 152 68518 0 68051 52 23 29 33 0 158 7 amappl16 200 8683 0 8442 82 69 13 30 0 8 0 amappl15 192 20 0 20 1 1 0 1 0 8 0 amappl14 184 116 0 104 1 0 1 1 0 8 0 amappl13 176 15 0 15 4 4 0 1 0 8 0 amappl12 168 2980 0 2948 2 0 2 2 0 8 0 amappl11 160 64 0 50 1 0 1 1 0 8 0 amappl10 152 22 0 22 3 3 0 1 0 8 0 amappl9 144 252 0 252 1 1 0 1 0 8 0 amappl8 136 25 0 22 1 0 1 1 0 8 0 amappl7 128 126 0 113 1 0 1 1 0 8 0 amappl6 120 202 0 199 1 0 1 1 0 8 0 amappl5 112 139 0 129 1 0 1 1 0 8 0 amappl4 104 303 0 283 1 0 1 1 0 8 0 amappl3 96 14011 0 13904 4 0 4 4 0 8 0 amappl2 88 694 0 630 2 0 2 2 0 8 0 amappl1 80 16133 0 15527 15 0 15 15 0 8 0 amappl 88 19047 0 18889 5 0 5 5 0 92 0 dma65536 65536 1 0 1 1 1 0 1 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 2 0 1 1 0 1 1 0 8 0 dma512 512 1 0 1 1 1 0 1 0 8 0 dma256 256 9 0 9 4 4 0 1 0 8 0 dma128 128 258 0 258 3 3 0 1 0 8 0 dma64 64 7 0 7 2 2 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 75 0 5 2 0 2 2 0 8 0 uaddrrnd 24 2292 0 2260 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2292 0 2260 1 0 1 1 0 8 0 vmmpekpl 168 18469 0 18425 3 0 3 3 0 8 0 vmmpepl 168 147954 0 145710 134 24 110 114 0 357 10 vmsppl 480 2291 0 2260 5 0 5 5 0 8 0 rwobjpl 72 45142 0 38007 131 0 131 131 0 8 0 pdppl 4096 4592 0 4520 122 50 72 88 0 8 0 pvpl 32 23864 0 0 192 0 192 192 0 265 0 pmappl 256 2291 0 2260 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 443 0 77 11 0 11 11 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff837feff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff839a4d20) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff839a4d20) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff800030feb7d0,ffff800000079a80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x7b6fe9cbc950, count: 9 ddb{0}> trace x86_ipi_db(ffffffff837feff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff839a4d20) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff839a4d20) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff800030feb7d0,ffff800000079a80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x7b6fe9cbc950, count: -6 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x25: addq $0x8,%rsp db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8346cf54) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff83419810,ffffffff8338559b,441,ffffffff8337afc5) at __assert+0x29 sys/kern/subr_prf.c:-1 rtrequest(1,ffff800035ff70c8,4,ffff800035ff7170,0) at rtrequest+0xe51 sys/net/route.c:1089 rt_ifa_add(ffff8000014e3100,840100,ffff8000014e3158,0) at rt_ifa_add+0x22e sys/net/route.c:1284 in_ifinit(ffff80000149c800,ffff8000014e3100,ffff800035ff73e0,1) at in_ifinit+0x4bd in_insert_prefix sys/netinet/in.c:767 [inline] in_ifinit(ffff80000149c800,ffff8000014e3100,ffff800035ff73e0,1) at in_ifinit+0x4bd sys/netinet/in.c:700 in_ioctl_change_ifaddr(8040691a,ffff800035ff73d0,ffff80000149c800) at in_ioctl_change_ifaddr+0x92c sys/netinet/in.c:501 ifioctl(ffff80000151fc78,8040691a,ffff800035ff73d0,ffff80003b8247d8) at ifioctl+0x1571 pru_control sys/sys/protosw.h:352 [inline] ifioctl(ffff80000151fc78,8040691a,ffff800035ff73d0,ffff80003b8247d8) at ifioctl+0x1571 sys/net/if.c:2453 sys_ioctl(ffff80003b8247d8,ffff800035ff75b0,ffff800035ff7500) at sys_ioctl+0x5c3 sys/kern/sys_generic.c:-1 syscall(ffff800035ff75b0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800035ff75b0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe9a8de696d0, count: 4 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8346cf54) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff83419810,ffffffff8338559b,441,ffffffff8337afc5) at __assert+0x29 sys/kern/subr_prf.c:-1 rtrequest(1,ffff800035ff70c8,4,ffff800035ff7170,0) at rtrequest+0xe51 sys/net/route.c:1089 rt_ifa_add(ffff8000014e3100,840100,ffff8000014e3158,0) at rt_ifa_add+0x22e sys/net/route.c:1284 in_ifinit(ffff80000149c800,ffff8000014e3100,ffff800035ff73e0,1) at in_ifinit+0x4bd in_insert_prefix sys/netinet/in.c:767 [inline] in_ifinit(ffff80000149c800,ffff8000014e3100,ffff800035ff73e0,1) at in_ifinit+0x4bd sys/netinet/in.c:700 in_ioctl_change_ifaddr(8040691a,ffff800035ff73d0,ffff80000149c800) at in_ioctl_change_ifaddr+0x92c sys/netinet/in.c:501 ifioctl(ffff80000151fc78,8040691a,ffff800035ff73d0,ffff80003b8247d8) at ifioctl+0x1571 pru_control sys/sys/protosw.h:352 [inline] ifioctl(ffff80000151fc78,8040691a,ffff800035ff73d0,ffff80003b8247d8) at ifioctl+0x1571 sys/net/if.c:2453 sys_ioctl(ffff80003b8247d8,ffff800035ff75b0,ffff800035ff7500) at sys_ioctl+0x5c3 sys/kern/sys_generic.c:-1 syscall(ffff800035ff75b0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800035ff75b0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe9a8de696d0, count: -11