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(ffff800000a4a100) at in6_purgeaddr+0x149 sys/netinet6/in6.c:915 in6_ifdetach(ffff800000ac3800) at in6_ifdetach+0x74 sys/netinet6/in6_ifattach.c:422 ifioctl(fffffd8037024480,801169ac,ffff800014884880,ffff800015953160) at ifioctl+0x1278 sys/net/if.c:1929 sys_ioctl(ffff800015953160,ffff800014884998,ffff8000148849e0) at sys_ioctl+0x5b9 syscall(ffff800014884a60) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,5666a922010) at Xsyscall+0x128 end of kernel end trace frame: 0x568b3fc3b10, count: -6 ddb> show registers rdi 0xffffffff818385a4 in6_purgeaddr+0x144 rsi 0x1c608 acpi_pdirpa+0x8470 rbp 0xffff800014884730 rbx 0 rdx 0x1c609 acpi_pdirpa+0x8471 rcx 0xffff800015972000 rax 0x1926e8f7894cffeb r8 0xffff800000a4a400 r9 0x1 r10 0x376d2b93b805750d r11 0xe9ee65dd0954613c r12 0xffffffff8137df50 bpf_wakeup_cb r13 0xf08ee8fe89495641 r14 0xffff800000a4a100 r15 0xffff800000ac3800 rip 0xffffffff818385a9 in6_purgeaddr+0x149 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000148846c0 ss 0x10 in6_purgeaddr+0x149: movq %rax,0x10(%r13) ddb> show proc PROC (syz-executor.0) pid=169884 stat=onproc flags process=0 proc=4000000 pri=81, usrpri=81, nice=20 forw=0xffffffffffffffff, list=0xffff8000159533d8,0xffff800015952ef8 process=0xffff8000ffff7b10 user=0xffff80001487f000, vmspace=0xfffffd803f014000 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 25683 73810 0 0 3 0x14200 acct acct 37928 515835 31393 0 2 0 syz-executor.0 *37928 169884 31393 0 7 0x4000000 syz-executor.0 88814 267755 15729 0 2 0 syz-executor.1 88814 98963 15729 0 3 0x4000080 fsleep syz-executor.1 88814 172326 15729 0 3 0x4000080 fsleep syz-executor.1 88814 25834 15729 0 2 0x4000000 syz-executor.1 31393 157113 29510 0 3 0x82 nanosleep syz-executor.0 83995 158917 1 0 3 0x80 nanosleep init 15729 309134 29510 0 3 0x82 nanosleep syz-executor.1 64909 149022 0 0 3 0x14200 bored sosplice 29510 211715 56356 0 3 0x82 thrsleep syz-fuzzer 29510 419728 56356 0 3 0x4000082 thrsleep syz-fuzzer 29510 423379 56356 0 3 0x4000082 thrsleep syz-fuzzer 29510 286250 56356 0 3 0x4000082 thrsleep syz-fuzzer 29510 508369 56356 0 3 0x4000082 thrsleep syz-fuzzer 29510 285246 56356 0 3 0x4000082 kqread syz-fuzzer 29510 108631 56356 0 3 0x4000082 thrsleep syz-fuzzer 56356 139727 70364 0 3 0x10008a pause ksh 70364 287420 25862 0 3 0x92 select sshd 25862 68679 1 0 3 0x80 select sshd 92713 489577 23450 73 3 0x100090 kqread syslogd 23450 509784 1 0 3 0x100082 netio syslogd 72072 325210 0 0 2 0x14200 zerothread 68071 201714 0 0 3 0x14200 aiodoned aiodoned 83458 451448 0 0 3 0x14200 syncer update 68602 2879 0 0 3 0x14200 cleaner cleaner 29098 303767 0 0 3 0x14200 reaper reaper 33513 356127 0 0 3 0x14200 pgdaemon pagedaemon 19221 243849 0 0 3 0x14200 bored crynlk 67337 75447 0 0 3 0x14200 bored crypto 86934 69335 0 0 3 0x40014200 acpi0 acpi0 46019 252199 0 0 2 0x14200 softnet 57269 158090 0 0 2 0x14200 systqmp 84900 461534 0 0 3 0x14200 bored systq 12207 475571 0 0 3 0x40014200 bored softclock 78839 225749 0 0 3 0x40014200 idle0 64704 243184 0 0 3 0x14200 bored smr 1 16123 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 9545 6300K 7587K 78643K 13392 0 0 pcb 13 8K 9K 78643K 480 0 0 rtable 84 3K 4K 78643K 844 0 0 ifaddr 75 16K 17K 78643K 293 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 87 0 0 iov 0 0K 20K 78643K 367 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1229 77K 78K 78643K 2363 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 17 0 0 VM map 10 2K 2K 78643K 20 0 0 sem 12 0K 1K 78643K 232 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 6 17K 25K 78643K 1277 0 0 sigio 0 0K 0K 78643K 10 0 0 proc 43 30K 55K 78643K 787 0 0 subproc 32 2K 2K 78643K 174 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 244 0 0 in_multi 16 1K 2K 78643K 190 0 0 ether_multi 1 0K 0K 78643K 11 0 0 mrt 0 0K 0K 78643K 8 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 84 371K 371K 78643K 84 0 0 exec 0 0K 1K 78643K 459 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 120 87K 91K 78643K 4110 0 0 UVM aobj 130 4K 4K 78643K 135 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 1K 78643K 308 0 0 NDP 17 0K 0K 78643K 91 0 0 temp 205 3544K 3615K 78643K 68751 0 0 kqueue 0 0K 0K 78643K 19 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 33 0 29 1 0 1 1 0 8 0 rtpcb 80 137 0 137 2 1 1 1 0 8 1 rtentry 112 197 0 168 2 0 2 2 0 8 0 unpcb 120 601 0 595 1 0 1 1 0 8 0 syncache 264 14 0 14 4 3 1 1 0 8 1 tcpqe 32 158 0 158 4 3 1 1 0 8 1 tcpcb 544 2046 0 2040 8 5 3 3 0 8 2 ipq 40 10 0 10 5 5 0 1 0 8 0 ipqe 40 448 0 448 5 5 0 1 0 8 0 inpcb 280 3175 0 3168 14 10 4 4 0 8 3 rttmr 72 3 0 3 2 2 0 1 0 8 0 nd6 48 25 0 24 1 0 1 1 0 8 0 pkpcb 40 4 0 4 1 1 0 1 0 8 0 ppxss 1128 23 0 23 3 2 1 1 0 8 1 art_heap8 4096 7 0 5 4 1 3 3 0 8 1 art_heap4 256 773 0 580 17 4 13 14 0 8 0 art_table 32 780 0 585 2 0 2 2 0 8 0 art_node 16 196 0 164 1 0 1 1 0 8 0 sysvmsgpl 40 14 0 3 2 1 1 1 0 8 0 semupl 112 2 0 2 2 2 0 1 0 8 0 semapl 112 230 0 220 1 0 1 1 0 8 0 shmpl 112 133 0 5 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 3334 0 1940 46 0 46 46 0 8 0 ffsino 240 3334 0 1940 83 0 83 83 0 8 0 nchpl 144 5698 0 4093 61 0 61 61 0 8 0 uvmvnodes 72 4192 0 0 77 0 77 77 0 8 0 vnodes 208 4192 0 0 221 0 221 221 0 8 0 namei 1024 17725 0 17725 2 1 1 1 0 8 1 vcpupl 1984 8 0 0 1 0 1 1 0 8 0 vmpool 520 18 0 10 3 2 1 1 0 8 0 scsiplug 64 2 0 2 1 1 0 1 0 8 0 scxspl 192 20775 0 20775 13 12 1 7 0 8 1 plimitpl 152 110 0 104 1 0 1 1 0 8 0 sigapl 432 1425 0 1412 2 0 2 2 0 8 0 futexpl 56 34804 0 34802 2 1 1 1 0 8 0 knotepl 112 377 0 358 2 1 1 2 0 8 0 kqueuepl 104 314 0 312 1 0 1 1 0 8 0 pipepl 112 862 0 843 3 2 1 2 0 8 0 fdescpl 424 1426 0 1412 2 0 2 2 0 8 0 filepl 120 12445 0 12349 10 5 5 5 0 8 2 lockfpl 104 466 0 466 1 0 1 1 0 8 1 lockfspl 48 147 0 147 1 0 1 1 0 8 1 sessionpl 112 26 0 17 1 0 1 1 0 8 0 pgrppl 48 38 0 29 1 0 1 1 0 8 0 ucredpl 96 1498 0 1492 1 0 1 1 0 8 0 zombiepl 144 1415 0 1414 1 0 1 1 0 8 0 processpl 864 1444 0 1414 4 0 4 4 0 8 0 procpl 632 2962 0 2922 4 0 4 4 0 8 0 sosppl 128 11 0 11 3 3 0 1 0 8 0 sockpl 384 3959 0 3946 17 12 5 7 0 8 3 mcl64k 65536 124 0 124 2 1 1 1 0 8 1 mcl16k 16384 23 0 23 6 5 1 1 0 8 1 mcl12k 12288 31 0 31 4 3 1 1 0 8 1 mcl9k 9216 12 0 12 4 3 1 1 0 8 1 mcl8k 8192 36 0 36 5 5 0 1 0 8 0 mcl4k 4096 120 0 120 3 2 1 1 0 8 1 mcl2k2 2112 9 0 9 3 3 0 1 0 8 0 mcl2k 2048 66716 0 66670 17 10 7 15 0 8 0 mtagpl 80 63 0 53 3 2 1 1 0 8 0 mbufpl 256 125596 0 125491 64 55 9 30 0 8 0 bufpl 256 12153 0 5119 440 0 440 440 0 8 0 anonpl 16 214119 0 196273 112 34 78 94 0 62 0 amapchunkpl 152 9010 0 8895 32 23 9 19 0 158 4 amappl16 192 9362 0 8306 115 54 61 65 0 8 8 amappl15 184 95 0 95 2 2 0 1 0 8 0 amappl14 176 495 0 488 1 0 1 1 0 8 0 amappl13 168 86 0 86 1 1 0 1 0 8 0 amappl12 160 103 0 100 1 0 1 1 0 8 0 amappl11 152 232 0 227 1 0 1 1 0 8 0 amappl10 144 309 0 306 1 0 1 1 0 8 0 amappl9 136 679 0 673 1 0 1 1 0 8 0 amappl8 128 249 0 213 3 1 2 2 0 8 0 amappl7 120 379 0 372 1 0 1 1 0 8 0 amappl6 112 213 0 206 1 0 1 1 0 8 0 amappl5 104 308 0 300 1 0 1 1 0 8 0 amappl4 96 1486 0 1459 1 0 1 1 0 8 0 amappl3 88 561 0 555 1 0 1 1 0 8 0 amappl2 80 10302 0 10230 3 1 2 3 0 8 0 amappl1 72 35764 0 35361 26 17 9 20 0 8 0 amappl 80 3352 0 3308 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 64 134 0 5 3 0 3 3 0 8 0 uaddrrnd 24 1444 0 1412 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1444 0 1412 1 0 1 1 0 8 0 vmmpekpl 168 13205 0 13172 2 0 2 2 0 8 0 vmmpepl 168 182041 0 179825 196 65 131 135 0 357 34 vmsppl 272 1425 0 1412 3 2 1 2 0 8 0 pdppl 4096 2894 0 2852 7 1 6 6 0 8 0 pvpl 32 595859 0 575072 321 98 223 320 0 265 45 pmappl 200 1443 0 1422 2 0 2 2 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 666 0 94 17 0 17 17 0 8 0 ddb> serialport: VM disconnected.