panic: kernel diagnostic assertion "sc->sc_dev == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/net/if_tun.c", line 319 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *313407 85047 0 0x2 0 1K ifconfig db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff834d75b2) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff835139d7,ffffffff83560960,13f,ffffffff83454f5b) at __assert+0x29 sys/kern/subr_prf.c:-1 tun_clone_destroy(ffff800001621800) at tun_clone_destroy+0x38a if_clone_destroy(ffff800038b96630) at if_clone_destroy+0x205 sys/net/if.c:1479 ifioctl(ffff8000015ab790,80206979,ffff800038b96630,ffff800045feaa80) at ifioctl+0x59d sys/net/if.c:2160 sys_ioctl(ffff800045feaa80,ffff800038b96810,ffff800038b96760) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff800038b96810) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800038b96810) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7bf9f20996c0, count: 6 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 "sc->sc_dev == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/net/if_tun.c", line 319 ddb{1}> show kasan No such command ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff834d75b2) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff835139d7,ffffffff83560960,13f,ffffffff83454f5b) at __assert+0x29 sys/kern/subr_prf.c:-1 tun_clone_destroy(ffff800001621800) at tun_clone_destroy+0x38a if_clone_destroy(ffff800038b96630) at if_clone_destroy+0x205 sys/net/if.c:1479 ifioctl(ffff8000015ab790,80206979,ffff800038b96630,ffff800045feaa80) at ifioctl+0x59d sys/net/if.c:2160 sys_ioctl(ffff800045feaa80,ffff800038b96810,ffff800038b96760) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff800038b96810) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800038b96810) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7bf9f20996c0, count: -9 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800038b963e0 rbx 0xffff80002998ee0f rdx 0 rcx 0xffff800045feaa80 rax 0xffff80002998dff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xd7abb50f35a6fbce r11 0xd0ff905225da2842 r12 0xffff80002998ec10 r13 0 r14 0 r15 0x1 rip 0xffffffff81230075 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff800038b963d0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (ifconfig) tid=313407 pid=85047 tcnt=1 stat=onproc flags process=2 proc=0 runpri=32, usrpri=64, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800045feba10,0xffffffff83a8e5e0 process=0xffff800045ff21f8 user=0xffff800038b91000, vmspace=0xfffff6806f0871f8 estcpu=14, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND *85047 313407 55658 0 7 0x2 0 ifconfig 55658 394527 90472 0 3 0x100002 0x88 sigsusp sh 90472 103377 50814 0 3 0x2 0x80 wait syz-executor 4399 468694 50814 0 3 0x2 0x80 piperd syz-executor 70164 185381 50814 0 3 0x2 0x80 piperd syz-executor 49603 413997 50814 0 3 0x2 0x80 piperd syz-executor 25151 421853 50814 0 2 0x2 0 syz-executor 24636 330592 50814 0 3 0x2 0x80 piperd syz-executor 27622 195995 50814 0 3 0x2 0x80 piperd syz-executor 50814 19345 90592 0 3 0x2 0x80 wait syz-executor 90592 406027 94624 0 3 0x100002 0x88 sigsusp ksh 94624 447849 39636 0 3 0x10 0x88 kqread sshd-session 39636 402154 16095 0 3 0x12 0x80 kqread sshd-session 66961 95251 1 0 3 0x100003 0x80 ttyin getty 16095 194038 1 0 3 0 0x88 kqread sshd 44993 247306 46903 74 3 0x1100012 0x80 bpf pflogd 46903 137976 1 0 3 0 0x80 sbwait pflogd 70467 173967 87933 73 3 0x1100010 0x80 kqread syslogd 87933 456174 1 0 3 0x100002 0x80 sbwait syslogd 77670 372909 1 0 3 0x100000 0x80 kqread resolvd 56425 470219 26209 77 2 0x100012 0x80 dhcpleased 66497 99494 26209 77 3 0x100012 0x80 kqread dhcpleased 26209 349501 1 0 3 0 0x80 kqread dhcpleased 29947 496009 0 0 3 0x14000 0x200 bored smr 77500 231944 0 0 2 0x14000 0x200 zerothread 81071 392202 0 0 3 0x14000 0x200 aiodoned aiodoned 98013 26641 0 0 3 0x14000 0x200 syncer update 40470 101816 0 0 3 0x14000 0x200 cleaner cleaner 94025 264008 0 0 3 0x14000 0x200 reaper reaper 27129 229506 0 0 3 0x14000 0x200 pgdaemon pagedaemon 39384 128161 0 0 3 0x14000 0x200 bored viomb 87615 16189 0 0 3 0x14000 0x40000200 acpi0 acpi0 15033 335088 0 0 3 0x14000 0x40000200 idle1 464 220546 0 0 3 0x14000 0x200 bored softnet1 77365 239112 0 0 2 0x14000 0x200 softnet0 4308 135698 0 0 3 0x14000 0x200 smrbar systqmp 21117 382750 0 0 3 0x14000 0x200 bored systq 96125 269332 0 0 3 0x14000 0x200 tmoslp softclockmp 39250 384945 0 0 3 0x14000 0x40000200 tmoslp softclock 71532 261759 0 0 3 0x14000 0x40000200 idle0 1 36466 0 0 3 0x2 0x80 wait init 0 0 -1 0 3 0x10000 0x200 scheduler swapper ddb{1}> show all locks Process 85047 (ifconfig) thread 0xffff800045feaa80 (313407) exclusive rwlock clonelk r = 0 (0xffffffff8394eae8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 if_clone_destroy+0x93 sys/net/if.c:-1 #3 ifioctl+0x59d sys/net/if.c:2160 #4 sys_ioctl+0x674 sys/kern/sys_generic.c:-1 #5 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791 #6 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83a5b8c0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 sleep_finish+0x2d8 sys/kern/kern_synch.c:369 #3 rw_do_enter_write+0x1dc sys/kern/kern_rwlock.c:298 #4 if_clone_destroy+0x93 sys/net/if.c:-1 #5 ifioctl+0x59d sys/net/if.c:2160 #6 sys_ioctl+0x674 sys/kern/sys_generic.c:-1 #7 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #7 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791 #8 Xsyscall+0x128 Process 77365 (softnet0) thread 0xffff800045ffe7c8 (239112) shared rwlock softnet0 r = 0 (0xffff80000002c078) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 taskq_thread+0x12a sys/kern/kern_task.c:442 #2 proc_trampoline+0x10 Process 4308 (systqmp) thread 0xffff800045ffe298 (135698) shared rwlock systqmp r = 0 (0xffffffff839a5a18) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 taskq_thread+0x12a sys/kern/kern_task.c:442 #2 proc_trampoline+0x10 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11052 12090K 12216K 166960K 12224 0 pcb 17 12K 12K 166960K 35 0 rtable 219 6K 7K 166960K 640 0 pf 32 17K 18K 166960K 71 0 ifaddr 39 6K 7K 166960K 88 0 ifgroup 51 2K 2K 166960K 105 0 sysctl 1 1K 9K 166960K 5 0 counters 68 36K 37K 166960K 100 0 ioctlops 0 0K 4K 166960K 1506 0 iov 0 0K 8K 166960K 3 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1287 81K 81K 166960K 1481 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 4 0 VM map 2 1K 1K 166960K 2 0 sem 7 0K 0K 166960K 7 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 11 37K 97K 166960K 342 0 proc 79 131K 180K 166960K 819 0 subproc 63 3K 4K 166960K 162 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 11 0 in_multi 88 5K 6K 166960K 206 0 ether_multi 1 0K 0K 166960K 3 0 mrt 1 0K 0K 166960K 12 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 49 228K 228K 166960K 49 0 exec 0 0K 1K 166960K 503 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 172 158K 186K 166960K 4399 0 UVM aobj 6 2K 2K 166960K 6 0 pinsyscall 36 72K 108K 166960K 1736 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 1 0 NDP 19 1K 2K 166960K 58 0 temp 36 9118K 9138K 166960K 9062 0 kqueue 13 20K 22K 166960K 31 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 28 0 0 1 0 1 1 0 8 0 rtpcb 120 53 0 50 1 0 1 1 0 8 0 rtentry 176 218 0 118 6 0 6 6 0 8 0 unpcb 144 55 0 38 1 0 1 1 0 8 0 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpcb 736 60 0 56 4 0 4 4 0 8 3 arp 136 36 0 20 1 0 1 1 0 8 0 inpcb 328 323 0 315 7 0 7 7 0 8 6 nd6 152 56 0 34 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 0 1 1 0 8 1 kcovpl 48 18 0 11 1 0 1 1 0 8 0 ppxss 1192 3 0 3 1 0 1 1 0 8 1 pppxif 1576 3 0 3 1 0 1 1 0 8 1 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 40 0 0 1 0 1 1 0 8 0 pfstkey 128 40 0 0 2 0 2 2 0 8 0 pfstate 448 40 0 0 5 0 5 5 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 rttmr 136 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 914 0 456 33 0 33 33 0 8 4 art_table 40 915 0 456 6 0 6 6 0 8 0 art_node 32 218 0 116 1 0 1 1 0 8 0 semapl 72 5 0 0 1 0 1 1 0 8 0 shmpl 120 3 0 0 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1713 0 222 94 0 94 94 0 8 0 ffsino 296 1713 0 222 116 0 116 116 0 8 0 nchpl 144 2007 0 271 65 0 65 65 0 8 0 vnodes 216 1903 0 0 106 0 106 106 0 8 0 namei 1024 8326 0 8326 3 1 2 2 0 8 2 percpumem 16 66 0 16 1 0 1 1 0 8 0 kstatmem 264 51 0 26 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 0 1 1 0 8 1 scxspl 216 7055 0 7055 4 3 1 3 1 8 1 plimitpl 152 50 0 33 1 0 1 1 0 8 0 sigapl 424 639 0 597 7 0 7 7 0 8 1 knotepl 120 228 0 0 7 0 7 7 0 8 0 kqueuepl 224 99 0 90 5 0 5 5 0 8 4 pipepl 344 162 0 135 4 0 4 4 0 8 0 fdescpl 528 623 0 598 3 0 3 3 0 8 0 filepl 160 2741 0 2546 12 0 12 12 0 8 0 lockfpl 104 37 0 35 1 0 1 1 0 8 0 lockfspl 48 17 0 15 1 0 1 1 0 8 0 sessionpl 144 35 0 26 1 0 1 1 0 8 0 pgrppl 48 53 0 36 1 0 1 1 0 8 0 ucredpl 104 166 0 153 1 0 1 1 0 8 0 zombiepl 144 598 0 597 1 0 1 1 0 8 0 processpl 1240 639 0 597 5 0 5 5 0 8 1 procpl 664 778 0 736 6 0 6 6 0 8 1 sockpl 752 436 0 408 10 0 10 10 0 8 7 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 123 0 0 16 0 16 16 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 20 0 0 3 0 3 3 0 8 0 mextrefs 64 18 0 0 1 0 1 1 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 160 0 0 10 0 10 10 0 8 0 bufpl 272 2569 0 105 165 0 165 165 0 8 0 anonpl 32 5426 0 0 44 0 44 44 0 247 0 amapchunkpl 152 12056 0 11772 24 0 24 24 0 158 8 amappl16 200 1777 0 1765 5 2 3 5 0 8 2 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 541 0 539 1 0 1 1 0 8 0 amappl13 176 141 0 128 1 0 1 1 0 8 0 amappl12 168 1000 0 977 2 0 2 2 0 8 0 amappl11 160 6 0 6 1 1 0 1 0 8 0 amappl10 152 126 0 112 1 0 1 1 0 8 0 amappl9 144 276 0 275 1 0 1 1 0 8 0 amappl8 136 139 0 136 1 0 1 1 0 8 0 amappl7 128 166 0 152 1 0 1 1 0 8 0 amappl6 120 326 0 323 1 0 1 1 0 8 0 amappl5 112 93 0 83 1 0 1 1 0 8 0 amappl4 104 322 0 301 1 0 1 1 0 8 0 amappl3 96 2164 0 2106 3 0 3 3 0 8 0 amappl2 88 698 0 631 2 0 2 2 0 8 0 amappl1 80 11869 0 11284 15 0 15 15 0 8 2 amappl 88 3513 0 3413 4 0 4 4 0 92 0 uvmvnodes 80 102 0 0 3 0 3 3 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 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 6 0 6 1 1 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 5 0 0 1 0 1 1 0 8 0 uaddrrnd 24 623 0 598 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 623 0 598 1 0 1 1 0 8 0 vmmpekpl 168 7085 0 7032 3 0 3 3 0 8 0 vmmpepl 168 49313 0 47783 87 0 87 87 0 357 9 vmsppl 488 622 0 597 5 0 5 5 0 8 0 rwobjpl 80 17126 0 16171 24 0 24 24 0 8 1 pdppl 4096 1253 0 1194 109 38 71 87 0 8 12 pvpl 32 12989 0 0 105 0 105 105 0 265 0 pmappl 256 622 0 597 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 458 0 42 12 0 12 12 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff838f7ff0) 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(ffffffff83a5b0c0) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83a5b0c0) at __mp_lock+0x199 sys/kern/kern_lock.c:173 softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83 dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:862 Xsoftclock() at Xsoftclock+0x27 __mp_lock(ffffffff83a5b0c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83a5b0c0) at __mp_lock+0x192 sys/kern/kern_lock.c:173 exit1(ffff800045feb4e0,43,0,1) at exit1+0x720 sys/kern/kern_exit.c:260 sys_exit(ffff800045feb4e0,ffff80002a3402e0,ffff80002a340230) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a3402e0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3402e0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x79d42b469be0, count: 3 ddb{0}> trace x86_ipi_db(ffffffff838f7ff0) 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(ffffffff83a5b0c0) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83a5b0c0) at __mp_lock+0x199 sys/kern/kern_lock.c:173 softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83 dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:862 Xsoftclock() at Xsoftclock+0x27 __mp_lock(ffffffff83a5b0c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83a5b0c0) at __mp_lock+0x192 sys/kern/kern_lock.c:173 exit1(ffff800045feb4e0,43,0,1) at exit1+0x720 sys/kern/kern_exit.c:260 sys_exit(ffff800045feb4e0,ffff80002a3402e0,ffff80002a340230) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a3402e0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3402e0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x79d42b469be0, count: -12 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(ffffffff834d75b2) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff835139d7,ffffffff83560960,13f,ffffffff83454f5b) at __assert+0x29 sys/kern/subr_prf.c:-1 tun_clone_destroy(ffff800001621800) at tun_clone_destroy+0x38a if_clone_destroy(ffff800038b96630) at if_clone_destroy+0x205 sys/net/if.c:1479 ifioctl(ffff8000015ab790,80206979,ffff800038b96630,ffff800045feaa80) at ifioctl+0x59d sys/net/if.c:2160 sys_ioctl(ffff800045feaa80,ffff800038b96810,ffff800038b96760) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff800038b96810) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800038b96810) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7bf9f20996c0, count: 6 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff834d75b2) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff835139d7,ffffffff83560960,13f,ffffffff83454f5b) at __assert+0x29 sys/kern/subr_prf.c:-1 tun_clone_destroy(ffff800001621800) at tun_clone_destroy+0x38a if_clone_destroy(ffff800038b96630) at if_clone_destroy+0x205 sys/net/if.c:1479 ifioctl(ffff8000015ab790,80206979,ffff800038b96630,ffff800045feaa80) at ifioctl+0x59d sys/net/if.c:2160 sys_ioctl(ffff800045feaa80,ffff800038b96810,ffff800038b96760) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff800038b96810) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800038b96810) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7bf9f20996c0, count: -9