kernel: protection fault trap, code=0 Stopped at in6_purgeaddr+0x149: movq %rax,0x10(%r13) ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic the kernel did not panic ddb> trace in6_purgeaddr(ffff800000aae200) at in6_purgeaddr+0x149 sys/netinet6/in6.c:915 in6_ifdetach(ffff800000ade000) at in6_ifdetach+0x74 sys/netinet6/in6_ifattach.c:422 if_detach(ffff800000ade000) at if_detach+0x155 sys/net/if.c:1110 tun_clone_destroy(ffff800000ade000) at tun_clone_destroy+0x1c0 sys/net/if_tun.c:278 spec_close(ffff800015954e20) at spec_close+0x3b0 sys/kern/spec_vnops.c:553 VOP_CLOSE(fffffd80391b9820,7,fffffd803f7c6b40,ffff8000ffff3160) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:175 vn_closefile(fffffd802d974108,ffff8000ffff3160) at vn_closefile+0xd3 vn_close sys/kern/vfs_vnops.c:289 [inline] vn_closefile(fffffd802d974108,ffff8000ffff3160) at vn_closefile+0xd3 sys/kern/vfs_vnops.c:601 fdrop(fffffd802d974108,ffff8000ffff3160) at fdrop+0xc2 sys/kern/kern_descrip.c:1273 closef(fffffd802d974108,ffff8000ffff3160) at closef+0x118 sys/kern/kern_descrip.c:1257 fdfree(ffff8000ffff3160) at fdfree+0x100 sys/kern/kern_descrip.c:1189 exit1(ffff8000ffff3160,9,1) at exit1+0x32f sys/kern/kern_exit.c:196 postsig(ffff8000ffff3160,9) at postsig+0x4a6 sigexit sys/kern/kern_sig.c:1499 [inline] postsig(ffff8000ffff3160,9) at postsig+0x4a6 sys/kern/kern_sig.c:1431 userret(ffff8000ffff3160) at userret+0x159 sys/kern/kern_sig.c:1888 syscall(ffff8000159552a0) at syscall+0x42e mi_syscall_return sys/sys/syscall_mi.h:115 [inline] syscall(ffff8000159552a0) at syscall+0x42e sys/arch/amd64/amd64/trap.c:577 Xsyscall(6,b,3a,b,1d19c,cbeb7aa5000) at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd7a20, count: -15 ddb> show registers rdi 0 rsi 0 rbp 0xffff800015954c80 rbx 0 rdx 0 rcx 0xfffffd802c1a2400 rax 0x7646e8f7894cff6c r8 0xffff800000aae400 r9 0x1 r10 0x1df46e88465fe673 r11 0x7ad6eb492758db6f r12 0xffffffff8210aaa0 bpf_wakeup_cb r13 0xcfbee8fe89495641 r14 0xffff800000aae200 r15 0xffff800000ade000 rip 0xffffffff816a6369 in6_purgeaddr+0x149 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800015954c10 ss 0x10 in6_purgeaddr+0x149: movq %rax,0x10(%r13) ddb> show proc PROC (syz-executor.1) pid=298782 stat=onproc flags process=a proc=2000 pri=32, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff2508,0xffff8000ffff22a0 process=0xffff8000ffff66d0 user=0xffff800015950000, vmspace=0xfffffd803f013cc0 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 49223 81346 1 0 3 0x10008b pause sh 73711 149515 82009 0 3 0x82 piperd syz-executor.0 67728 385116 0 0 3 0x14200 bored sosplice 82009 418854 58497 0 2 0x82 syz-fuzzer 82009 210529 58497 0 2 0x4000002 syz-fuzzer 82009 306352 58497 0 2 0x4000002 syz-fuzzer 82009 212262 58497 0 3 0x4000082 thrsleep syz-fuzzer 82009 308674 58497 0 3 0x4000082 thrsleep syz-fuzzer 82009 510058 58497 0 2 0x4000002 syz-fuzzer 82009 243459 58497 0 3 0x4000082 thrsleep syz-fuzzer 58497 112650 27998 0 3 0x10008a pause ksh 27998 76632 63999 0 3 0x92 select sshd 63999 485597 1 0 3 0x80 select sshd 42870 241891 2875 73 2 0x100010 syslogd 2875 297094 1 0 3 0x100082 netio syslogd 65641 39525 1 77 2 0x100090 dhclient 69350 380459 1 0 3 0x80 poll dhclient 6473 150479 0 0 2 0x14200 zerothread 58949 523914 0 0 3 0x14200 aiodoned aiodoned 92283 112497 0 0 3 0x14200 syncer update 84556 190594 0 0 3 0x14200 cleaner cleaner 36444 412084 0 0 2 0x14200 reaper 41126 492915 0 0 3 0x14200 pgdaemon pagedaemon 52475 379904 0 0 3 0x14200 bored crynlk 79145 7613 0 0 3 0x14200 bored crypto 46747 312126 0 0 3 0x40014200 acpi0 acpi0 45753 415692 0 0 2 0x14200 softnet 21404 144078 0 0 2 0x14200 systqmp 32115 149315 0 0 3 0x14200 bored systq 67358 10295 0 0 3 0x40014200 bored softclock 24496 464553 0 0 3 0x40014200 idle0 53578 232339 0 0 3 0x14200 bored smr 1 446322 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9486 6980K 7365K 78643K 11863 0 0 pcb 13 8K 8K 78643K 149 0 0 rtable 92 3K 4K 78643K 587 0 0 ifaddr 51 12K 13K 78643K 178 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 53 0 0 iov 0 0K 36K 78643K 285 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1216 76K 77K 78643K 1726 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 5K 78643K 9 0 0 VM map 8 2K 2K 78643K 10 0 0 sem 12 0K 0K 78643K 117 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 4 9K 25K 78643K 655 0 0 sigio 0 0K 0K 78643K 197 0 0 proc 42 30K 63K 78643K 536 0 0 subproc 23 1K 2K 78643K 85 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 ip_moptions 0 0K 0K 78643K 696 0 0 in_multi 23 1K 2K 78643K 86 0 0 ether_multi 1 0K 0K 78643K 5 0 0 mrt 0 0K 0K 78643K 2 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 60 265K 265K 78643K 60 0 0 exec 0 0K 1K 78643K 286 0 0 pagedep 1 8K 8K 78643K 1 0 0 inodedep 1 32K 32K 78643K 1 0 0 newblk 1 0K 0K 78643K 1 0 0 VM swap 7 26K 26K 78643K 7 0 0 UVM amap 111 72K 72K 78643K 2517 0 0 UVM aobj 65 3K 3K 78643K 68 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 0K 78643K 115 0 0 NDP 10 0K 0K 78643K 50 0 0 temp 154 3538K 4174K 78643K 33824 0 0 kqueue 0 0K 0K 78643K 7 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 23 0 17 1 0 1 1 0 8 0 rtpcb 80 81 0 79 1 0 1 1 0 8 0 rtentry 112 98 0 62 2 0 2 2 0 8 0 unpcb 120 325 0 314 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 2435 0 2435 1 1 0 1 0 8 0 tcpcb 544 867 0 863 4 3 1 3 0 8 0 ipq 40 6 0 6 3 3 0 1 0 8 0 ipqe 40 14 0 14 3 3 0 1 0 8 0 inpcb 280 1346 0 1338 4 3 1 3 0 8 0 ip6q 72 1 0 0 1 0 1 1 0 8 0 ip6af 40 1 0 0 1 0 1 1 0 8 0 nd6 48 12 0 9 2 1 1 1 0 8 0 pkpcb 40 4 0 4 1 1 0 1 0 8 0 swfcl 56 2 0 0 1 0 1 1 0 8 0 ppxss 1128 20 0 20 2 2 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 414 0 185 19 4 15 15 0 8 0 art_table 32 415 0 185 2 0 2 2 0 8 0 art_node 16 97 0 59 1 0 1 1 0 8 0 sysvmsgpl 40 29 0 23 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 115 0 105 1 0 1 1 0 8 0 shmpl 112 66 0 3 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 2409 0 1014 46 0 46 46 0 8 0 ffsino 240 2409 0 1014 83 0 83 83 0 8 0 nchpl 144 3505 0 1903 60 0 60 60 0 8 0 uvmvnodes 72 2800 0 0 51 0 51 51 0 8 0 vnodes 208 2800 0 0 148 0 148 148 0 8 0 namei 1024 10346 0 10346 4 3 1 1 0 8 1 vcpupl 1984 6 0 0 1 0 1 1 0 8 0 vmpool 520 8 0 2 1 0 1 1 0 8 0 scsiplug 64 4 0 4 2 2 0 1 0 8 0 scxspl 192 11957 0 11957 14 13 1 7 0 8 1 plimitpl 152 73 0 65 1 0 1 1 0 8 0 sigapl 432 821 0 809 2 0 2 2 0 8 0 futexpl 56 17775 0 17775 1 1 0 1 0 8 0 knotepl 112 340 0 321 3 2 1 3 0 8 0 kqueuepl 104 305 0 303 1 0 1 1 0 8 0 pipepl 112 1760 0 1742 6 5 1 3 0 8 0 fdescpl 424 822 0 809 2 0 2 2 0 8 0 filepl 120 7396 0 7310 7 3 4 6 0 8 0 lockfpl 104 245 0 244 1 0 1 1 0 8 0 lockfspl 48 80 0 79 1 0 1 1 0 8 0 sessionpl 112 23 0 12 1 0 1 1 0 8 0 pgrppl 48 27 0 16 1 0 1 1 0 8 0 ucredpl 96 740 0 733 1 0 1 1 0 8 0 zombiepl 144 811 0 806 3 2 1 1 0 8 0 processpl 864 838 0 806 4 0 4 4 0 8 0 procpl 632 1640 0 1602 4 0 4 4 0 8 0 sosppl 128 4 0 4 1 1 0 1 0 8 0 sockpl 384 1763 0 1743 9 6 3 6 0 8 0 mcl64k 65536 30 0 30 4 4 0 1 0 8 0 mcl16k 16384 8 0 8 4 4 0 1 0 8 0 mcl12k 12288 14 0 14 2 2 0 1 0 8 0 mcl9k 9216 6 0 6 3 3 0 1 0 8 0 mcl8k 8192 26 0 26 2 2 0 1 0 8 0 mcl4k 4096 74 0 74 2 2 0 1 0 8 0 mcl2k2 2112 8 0 8 5 5 0 1 0 8 0 mcl2k 2048 63525 0 63480 18 11 7 14 0 8 0 mtagpl 80 25 0 23 3 2 1 1 0 8 0 mbufpl 256 106722 0 106626 15 7 8 9 0 8 1 bufpl 256 9888 0 3836 379 0 379 379 0 8 0 anonpl 16 128499 0 107361 94 9 85 85 0 62 0 amapchunkpl 152 4976 0 4596 27 12 15 15 0 158 0 amappl16 192 4934 0 3984 74 26 48 60 0 8 0 amappl15 184 603 0 599 1 0 1 1 0 8 0 amappl14 176 49 0 44 2 1 1 1 0 8 0 amappl13 168 69 0 68 2 1 1 1 0 8 0 amappl12 160 9 0 4 1 0 1 1 0 8 0 amappl11 152 160 0 148 1 0 1 1 0 8 0 amappl10 144 9 0 8 1 0 1 1 0 8 0 amappl9 136 588 0 581 1 0 1 1 0 8 0 amappl8 128 179 0 154 1 0 1 1 0 8 0 amappl7 120 57 0 51 1 0 1 1 0 8 0 amappl6 112 166 0 155 1 0 1 1 0 8 0 amappl5 104 237 0 226 1 0 1 1 0 8 0 amappl4 96 1121 0 1094 1 0 1 1 0 8 0 amappl3 88 141 0 133 1 0 1 1 0 8 0 amappl2 80 5972 0 5900 4 2 2 3 0 8 0 amappl1 72 24747 0 24262 26 16 10 20 0 8 0 amappl 80 1932 0 1889 1 0 1 1 0 84 0 dma4096 4096 1 0 1 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 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 17 0 17 1 1 0 1 0 8 0 aobjpl 64 67 0 3 2 0 2 2 0 8 0 uaddrrnd 24 830 0 807 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 830 0 807 1 0 1 1 0 8 0 vmmpekpl 168 11896 0 11869 2 0 2 2 0 8 0 vmmpepl 168 108158 0 106050 173 65 108 128 0 357 15 vmsppl 272 821 0 806 3 2 1 2 0 8 0 pdppl 4096 1666 0 1622 8 2 6 6 0 8 0 pvpl 32 404537 0 384638 345 56 289 304 0 265 119 pmappl 200 829 0 808 2 0 2 2 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 551 0 46 15 0 15 15 0 8 0 ddb> serialport: VM disconnected.