panic: kernel diagnostic assertion "cifp != NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/net/route.c", line 1078 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *379790 50317 0 0x2 0 1K ifconfig 126820 30948 0 0x100002 0 0 sh db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830e4a96) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8309c871,ffffffff830102b0,436,ffffffff830075fd) at __assert+0x29 rtrequest(1,ffff8000367c3838,4,ffff8000367c38e0,0) at rtrequest+0xdce sys/net/route.c:1078 rt_ifa_add(ffff800000e5ab00,840100,ffff800000e5ab58,0) at rt_ifa_add+0x22e sys/net/route.c:1273 in_ifinit(ffff8000015a4800,ffff800000e5ab00,ffff8000367c3b50,1) at in_ifinit+0x4bd in_insert_prefix sys/netinet/in.c:770 [inline] in_ifinit(ffff8000015a4800,ffff800000e5ab00,ffff8000367c3b50,1) at in_ifinit+0x4bd sys/netinet/in.c:703 in_ioctl_change_ifaddr(8040691a,ffff8000367c3b40,ffff8000015a4800) at in_ioctl_change_ifaddr+0x92c sys/netinet/in.c:504 ifioctl(ffff800001588fa0,8040691a,ffff8000367c3b40,ffff80002a040a38) at ifioctl+0x1571 pru_control sys/sys/protosw.h:355 [inline] ifioctl(ffff800001588fa0,8040691a,ffff8000367c3b40,ffff80002a040a38) at ifioctl+0x1571 sys/net/if.c:2449 sys_ioctl(ffff80002a040a38,ffff8000367c3d20,ffff8000367c3c70) at sys_ioctl+0x67c syscall(ffff8000367c3d20) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000367c3d20) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7ed146e43d70, 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 1078 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830e4a96) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8309c871,ffffffff830102b0,436,ffffffff830075fd) at __assert+0x29 rtrequest(1,ffff8000367c3838,4,ffff8000367c38e0,0) at rtrequest+0xdce sys/net/route.c:1078 rt_ifa_add(ffff800000e5ab00,840100,ffff800000e5ab58,0) at rt_ifa_add+0x22e sys/net/route.c:1273 in_ifinit(ffff8000015a4800,ffff800000e5ab00,ffff8000367c3b50,1) at in_ifinit+0x4bd in_insert_prefix sys/netinet/in.c:770 [inline] in_ifinit(ffff8000015a4800,ffff800000e5ab00,ffff8000367c3b50,1) at in_ifinit+0x4bd sys/netinet/in.c:703 in_ioctl_change_ifaddr(8040691a,ffff8000367c3b40,ffff8000015a4800) at in_ioctl_change_ifaddr+0x92c sys/netinet/in.c:504 ifioctl(ffff800001588fa0,8040691a,ffff8000367c3b40,ffff80002a040a38) at ifioctl+0x1571 pru_control sys/sys/protosw.h:355 [inline] ifioctl(ffff800001588fa0,8040691a,ffff8000367c3b40,ffff80002a040a38) at ifioctl+0x1571 sys/net/if.c:2449 sys_ioctl(ffff80002a040a38,ffff8000367c3d20,ffff8000367c3c70) at sys_ioctl+0x67c syscall(ffff8000367c3d20) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000367c3d20) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7ed146e43d70, count: -11 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff8000367c3630 rbx 0xffff800029b7cdcf rdx 0 rcx 0xffff80002a040a38 rax 0xffff800029b7bff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xf6d709643a5ab29d r11 0xa76b9338fcdfcfe0 r12 0xffff800029b7cbd0 r13 0 r14 0 r15 0x1 rip 0xffffffff81d75625 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff8000367c3620 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (ifconfig) tid=379790 pid=50317 tcnt=1 stat=onproc flags process=2 proc=0 runpri=58, usrpri=58, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800031f92cd0,0xffffffff835090d0 process=0xffff80003687b1e0 user=0xffff8000367be000, vmspace=0xfffffd806cae1540 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND *50317 379790 76969 0 7 0x2 ifconfig 76969 172901 25127 0 3 0x10008a sigsusp sh 30948 126820 11298 0 7 0x100002 sh 51484 470133 20895 0 3 0x2 clonelk ifconfig 20895 128320 40701 0 3 0x10008a sigsusp sh 40701 396558 91423 0 3 0x82 wait syz-executor 11298 429150 91423 0 3 0x82 wait syz-executor 25127 511814 91423 0 3 0x82 wait syz-executor 87960 87163 1 0 3 0x100083 ttyin getty 9258 493739 91423 0 3 0x82 piperd syz-executor 38643 91748 91423 0 3 0x82 piperd syz-executor 85855 502785 91423 0 3 0x82 piperd syz-executor 93434 163175 91423 0 3 0x82 piperd syz-executor 17288 199757 0 0 3 0x14280 nfsidl nfsio 45432 302375 0 0 3 0x14280 nfsidl nfsio 68234 194508 0 0 3 0x14280 nfsidl nfsio 89512 463279 0 0 3 0x14280 nfsidl nfsio 17230 504013 0 0 3 0x14280 nfsidl nfsio 20368 291061 0 0 3 0x14280 nfsidl nfsio 73909 59401 0 0 3 0x14280 nfsidl nfsio 20108 28042 0 0 3 0x14280 nfsidl nfsio 44800 90518 0 0 3 0x14280 nfsidl nfsio 80839 249480 0 0 3 0x14280 nfsidl nfsio 97704 64417 0 0 3 0x14280 nfsidl nfsio 9206 413172 0 0 3 0x14280 nfsidl nfsio 33581 199717 0 0 3 0x14280 nfsidl nfsio 62280 220020 0 0 3 0x14280 nfsidl nfsio 37297 485112 0 0 3 0x14280 nfsidl nfsio 54536 196191 0 0 3 0x14280 nfsidl nfsio 3440 399524 0 0 3 0x14280 nfsidl nfsio 90447 231793 0 0 3 0x14280 nfsidl nfsio 71819 165008 0 0 3 0x14280 nfsidl nfsio 78575 460826 0 0 3 0x14280 nfsidl nfsio 3769 377185 0 0 3 0x14200 bored sosplice 91423 361121 2606 0 3 0x82 wait syz-executor 2606 475935 66170 0 3 0x10008a sigsusp ksh 66170 353333 77045 0 3 0x98 kqread sshd-session 77045 226813 12740 0 3 0x92 kqread sshd-session 12740 147736 1 0 3 0x88 kqread sshd 50118 327552 40053 74 3 0x1100092 bpf pflogd 40053 508435 1 0 3 0x80 sbwait pflogd 7443 284922 83508 73 3 0x1100010 ffs_fsync syslogd 83508 264461 1 0 3 0x100082 sbwait syslogd 31867 15904 1 0 3 0x100080 kqread resolvd 30931 102624 90360 77 3 0x100092 kqread dhcpleased 69363 233267 90360 77 3 0x100092 kqread dhcpleased 90360 121973 1 0 3 0x80 kqread dhcpleased 77071 516900 0 0 3 0x14200 bored smr 51975 195214 0 0 2 0x14200 zerothread 95015 251576 0 0 3 0x14200 aiodoned aiodoned 17614 417081 0 0 3 0x14200 syncer update 16774 145859 0 0 3 0x14200 cleaner cleaner 57184 241936 0 0 3 0x14200 reaper reaper 57266 4902 0 0 3 0x14200 pgdaemon pagedaemon 10200 154685 0 0 3 0x14200 bored viomb 62945 417629 0 0 3 0x40014200 acpi0 acpi0 66945 431139 0 0 3 0x40014200 idle1 66560 204109 0 0 3 0x14200 bored softnet3 51479 302029 0 0 3 0x14200 bored softnet2 29701 122185 0 0 3 0x14200 bored softnet1 83947 386918 0 0 3 0x14200 bored softnet0 70522 203369 0 0 3 0x14200 bored systqmp 13931 249303 0 0 3 0x14200 bored systq 67847 88166 0 0 3 0x14200 tmoslp softclockmp 16817 45101 0 0 3 0x40014200 tmoslp softclock 65129 89064 0 0 3 0x40014200 idle0 1 486306 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 50317 (ifconfig) thread 0xffff80002a040a38 (379790) Process 7443 (syslogd) thread 0xffff8000ffffd1c8 (284922) ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10225 14213K 14656K 166960K 14059 0 pcb 17 16K 18K 166960K 388 0 rtable 168 7K 9K 166960K 3313 0 pf 36 18K 22K 166960K 320 0 ifaddr 36 8K 8K 166960K 453 0 ifgroup 55 2K 2K 166960K 493 0 sysctl 3 1K 1K 166960K 7 0 counters 64 36K 37K 166960K 296 0 ioctlops 0 0K 4K 166960K 1806 0 iov 0 0K 20K 166960K 233 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1603 101K 102K 166960K 4289 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 5K 13K 166960K 28 0 VM map 2 1K 1K 166960K 2 0 sem 22 5K 6K 166960K 65 0 dirhash 15 2K 3K 166960K 33 0 ACPI 1690 195K 286K 166960K 12418 0 file desc 15 53K 93K 166960K 2990 0 sigio 0 0K 0K 166960K 37 0 proc 86 116K 128K 166960K 3281 0 subproc 104 6K 6K 166960K 1326 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 157 0 in_multi 60 4K 7K 166960K 1153 0 ether_multi 1 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 217 970K 970K 166960K 217 0 exec 0 0K 1K 166960K 1904 0 pfkey data 0 0K 0K 166960K 3 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 185 71K 91K 166960K 24490 0 UVM aobj 78 5K 6K 166960K 84 0 pinsyscall 40 80K 102K 166960K 6525 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 75 0 NDP 12 0K 2K 166960K 330 0 temp 80 6824K 7075K 166960K 160751 0 kqueue 13 20K 28K 166960K 259 0 SYN cache 2 10K 18K 166960K 3 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 24 0 0 1 0 1 1 0 8 0 rtpcb 120 391 0 388 3 2 1 3 0 8 0 rtentry 112 1188 0 1117 4 1 3 4 0 8 0 unpcb 144 1301 0 1284 19 18 1 6 0 8 0 syncache 336 12 0 12 5 5 0 1 0 8 0 tcpqe 32 3 0 3 2 2 0 1 0 8 0 tcpcb 808 539 0 535 16 15 1 8 0 8 0 arp 120 214 0 199 1 0 1 1 0 8 0 inpcb 336 2636 0 2626 38 36 2 10 0 8 0 nd6 136 309 0 294 1 0 1 1 0 8 0 pkpcb 40 6 0 6 5 5 0 1 0 8 0 kcovpl 48 102 0 94 1 0 1 1 0 8 0 ppxss 1168 16 0 16 7 7 0 1 0 8 0 pfstscr 40 10 0 10 4 4 0 1 0 8 0 pffrag 232 28 0 23 2 1 1 1 0 482 0 pffrnode 88 28 0 23 2 1 1 1 0 8 0 pffrent 40 92 0 87 2 1 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 4 0 2 1 0 1 1 0 8 0 pfanchor 1288 3 0 0 1 0 1 1 0 8 0 pfstitem 24 257 0 238 1 0 1 1 0 8 0 pfstkey 128 271 0 252 2 0 2 2 0 8 0 pfstate 376 264 0 246 7 3 4 6 0 8 0 pfrule 1344 31 0 24 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 4734 0 4442 43 16 27 29 0 8 1 art_table 32 4736 0 4442 4 0 4 4 0 8 0 art_node 16 1180 0 1119 1 0 1 1 0 8 0 sysvmsgpl 40 23 0 14 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 51 0 31 1 0 1 1 0 8 0 shmpl 112 81 0 6 3 0 3 3 0 8 0 dirhash 1024 32 0 13 3 0 3 3 0 8 0 dino2pl 256 4661 0 2981 106 0 106 106 0 8 0 ffsino 272 4661 0 2981 113 0 113 113 0 8 0 nchpl 144 7053 0 5255 68 0 68 68 0 8 0 uvmvnodes 80 7008 0 0 144 0 144 144 0 8 0 vnodes 216 7008 0 0 390 0 390 390 0 8 0 namei 1024 32690 0 32690 5 4 1 1 0 8 1 percpumem 16 162 0 116 1 0 1 1 0 8 0 pfiaddrpl 120 1 0 0 1 0 1 1 0 8 0 kstatmem 264 256 0 232 4 2 2 3 0 8 0 scsiplug 72 4 0 4 2 2 0 1 0 8 0 scxspl 216 65042 0 65041 14 13 1 8 1 8 0 plimitpl 152 398 0 381 1 0 1 1 0 8 0 sigapl 424 3142 0 3074 10 1 9 9 0 8 0 futexpl 64 22134 0 22134 10 9 1 1 0 8 1 knotepl 120 522 0 0 14 0 14 14 0 8 0 kqueuepl 216 545 0 536 10 9 1 5 0 8 0 pipepl 320 550 0 523 3 0 3 3 0 8 0 fdescpl 496 3101 0 3072 8 3 5 5 0 8 0 filepl 152 16632 0 16393 53 42 11 18 0 8 0 lockfpl 104 771 0 769 1 0 1 1 0 8 0 lockfspl 48 343 0 341 1 0 1 1 0 8 0 sessionpl 144 126 0 117 1 0 1 1 0 8 0 pgrppl 48 252 0 235 1 0 1 1 0 8 0 ucredpl 104 2525 0 2509 1 0 1 1 0 8 0 zombiepl 144 3618 0 3617 2 1 1 1 0 8 0 processpl 1160 3142 0 3074 7 1 6 6 0 8 0 procpl 648 5754 0 5686 10 2 8 8 0 8 0 srpgc 96 12 0 12 6 6 0 1 0 8 0 sosppl 168 7 0 7 4 4 0 1 0 8 0 sockpl 664 4346 0 4314 56 52 4 18 0 8 0 mcl64k 65536 8 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 7 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 6 0 0 1 0 1 1 0 8 0 mcl2k 2048 300 0 0 28 0 28 28 0 8 0 mtagpl 96 100 0 0 3 0 3 3 0 8 0 mbufpl 256 1732 0 0 98 0 98 98 0 8 0 bufpl 280 12622 0 6147 583 62 521 583 0 8 0 anonpl 24 470935 0 467577 97 43 54 54 0 185 12 amapchunkpl 152 79509 0 79180 66 32 34 36 0 158 13 amappl16 200 8439 0 8421 63 60 3 15 0 8 1 amappl15 192 5 0 5 1 1 0 1 0 8 0 amappl14 184 312 0 300 1 0 1 1 0 8 0 amappl13 176 12 0 12 2 2 0 1 0 8 0 amappl12 168 5242 0 5212 3 1 2 2 0 8 0 amappl11 160 56 0 42 1 0 1 1 0 8 0 amappl10 152 14 0 14 1 1 0 1 0 8 0 amappl9 144 123 0 123 1 1 0 1 0 8 0 amappl8 136 41 0 38 1 0 1 1 0 8 0 amappl7 128 357 0 344 1 0 1 1 0 8 0 amappl6 120 1093 0 1087 1 0 1 1 0 8 0 amappl5 112 516 0 502 1 0 1 1 0 8 0 amappl4 104 619 0 600 1 0 1 1 0 8 0 amappl3 96 15189 0 15115 6 2 4 4 0 8 0 amappl2 88 2039 0 1965 2 0 2 2 0 8 0 amappl1 80 22868 0 22298 14 0 14 14 0 8 0 amappl 88 23240 0 23116 6 1 5 5 0 92 0 dma16384 16384 2 0 2 2 2 0 1 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma2048 2048 2 0 2 1 1 0 1 0 8 0 dma1024 1024 2 0 1 1 0 1 1 0 8 0 dma512 512 2 0 2 1 1 0 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 8 0 8 3 3 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 21 0 20 1 0 1 1 0 8 0 aobjpl 72 83 0 6 2 0 2 2 0 8 0 uaddrrnd 24 3101 0 3072 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3101 0 3072 1 0 1 1 0 8 0 vmmpekpl 168 26103 0 26046 4 0 4 4 0 8 0 vmmpepl 168 195650 0 194067 135 49 86 95 0 357 0 vmsppl 440 3100 0 3072 6 2 4 5 0 8 0 rwobjpl 56 62826 0 54825 116 2 114 114 0 8 0 pdppl 4096 6209 0 6144 235 164 71 85 0 8 6 pvpl 32 29379 0 0 235 0 235 235 0 265 0 pmappl 248 3100 0 3072 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 710 0 253 14 0 14 14 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83480ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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(ffffffff8362a6f0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8362a6f0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff80002a138240,ffff800000079f80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xf sys/dev/kcov.c:154 syscall(ffff80002a138420) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a138420) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x77d07b30ab60, count: 6 ddb{0}> trace x86_ipi_db(ffffffff83480ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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(ffffffff8362a6f0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8362a6f0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff80002a138240,ffff800000079f80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xf sys/dev/kcov.c:154 syscall(ffff80002a138420) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a138420) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x77d07b30ab60, count: -9 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:437 panic(ffffffff830e4a96) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8309c871,ffffffff830102b0,436,ffffffff830075fd) at __assert+0x29 rtrequest(1,ffff8000367c3838,4,ffff8000367c38e0,0) at rtrequest+0xdce sys/net/route.c:1078 rt_ifa_add(ffff800000e5ab00,840100,ffff800000e5ab58,0) at rt_ifa_add+0x22e sys/net/route.c:1273 in_ifinit(ffff8000015a4800,ffff800000e5ab00,ffff8000367c3b50,1) at in_ifinit+0x4bd in_insert_prefix sys/netinet/in.c:770 [inline] in_ifinit(ffff8000015a4800,ffff800000e5ab00,ffff8000367c3b50,1) at in_ifinit+0x4bd sys/netinet/in.c:703 in_ioctl_change_ifaddr(8040691a,ffff8000367c3b40,ffff8000015a4800) at in_ioctl_change_ifaddr+0x92c sys/netinet/in.c:504 ifioctl(ffff800001588fa0,8040691a,ffff8000367c3b40,ffff80002a040a38) at ifioctl+0x1571 pru_control sys/sys/protosw.h:355 [inline] ifioctl(ffff800001588fa0,8040691a,ffff8000367c3b40,ffff80002a040a38) at ifioctl+0x1571 sys/net/if.c:2449 sys_ioctl(ffff80002a040a38,ffff8000367c3d20,ffff8000367c3c70) at sys_ioctl+0x67c syscall(ffff8000367c3d20) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000367c3d20) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7ed146e43d70, count: 4 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830e4a96) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8309c871,ffffffff830102b0,436,ffffffff830075fd) at __assert+0x29 rtrequest(1,ffff8000367c3838,4,ffff8000367c38e0,0) at rtrequest+0xdce sys/net/route.c:1078 rt_ifa_add(ffff800000e5ab00,840100,ffff800000e5ab58,0) at rt_ifa_add+0x22e sys/net/route.c:1273 in_ifinit(ffff8000015a4800,ffff800000e5ab00,ffff8000367c3b50,1) at in_ifinit+0x4bd in_insert_prefix sys/netinet/in.c:770 [inline] in_ifinit(ffff8000015a4800,ffff800000e5ab00,ffff8000367c3b50,1) at in_ifinit+0x4bd sys/netinet/in.c:703 in_ioctl_change_ifaddr(8040691a,ffff8000367c3b40,ffff8000015a4800) at in_ioctl_change_ifaddr+0x92c sys/netinet/in.c:504 ifioctl(ffff800001588fa0,8040691a,ffff8000367c3b40,ffff80002a040a38) at ifioctl+0x1571 pru_control sys/sys/protosw.h:355 [inline] ifioctl(ffff800001588fa0,8040691a,ffff8000367c3b40,ffff80002a040a38) at ifioctl+0x1571 sys/net/if.c:2449 sys_ioctl(ffff80002a040a38,ffff8000367c3d20,ffff8000367c3c70) at sys_ioctl+0x67c syscall(ffff8000367c3d20) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000367c3d20) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7ed146e43d70, count: -11