login: qf)sX.Bv@3d,*lΠAe@̅?qf)sX.Bv@3d,*lΠAe@̅?uvm_fault(0xfffffd803f014880, 0x1fe6704d77b0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at in6_purgeaddr+0x135: movq 0x8(%r12),%r13 ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic kernel page fault uvm_fault(0xfffffd803f014880, 0x1fe6704d77b0, 0, 1) -> e in6_purgeaddr(ffff800000b16700) at in6_purgeaddr+0x135 sys/netinet6/in6.c:914 end trace frame: 0xffff80001494f150, count: 0 ddb> trace in6_purgeaddr(ffff800000b16700) at in6_purgeaddr+0x135 sys/netinet6/in6.c:914 in6_ifdetach(ffff800000b00800) at in6_ifdetach+0x74 sys/netinet6/in6_ifattach.c:422 if_detach(ffff800000b00800) at if_detach+0x148 sys/net/if.c:1157 tun_clone_destroy(ffff800000b00800) at tun_clone_destroy+0x1c0 sys/net/if_tun.c:278 spec_close(ffff80001494f280) at spec_close+0x311 sys/kern/spec_vnops.c:555 VOP_CLOSE(fffffd803e4ce820,7,fffffd803f7c6a80,ffff8000ffff2ee8) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:175 vn_closefile(fffffd802d8424c0,ffff8000ffff2ee8) at vn_closefile+0xd3 vn_close sys/kern/vfs_vnops.c:301 [inline] vn_closefile(fffffd802d8424c0,ffff8000ffff2ee8) at vn_closefile+0xd3 sys/kern/vfs_vnops.c:613 fdrop(fffffd802d8424c0,ffff8000ffff2ee8) at fdrop+0xc2 sys/kern/kern_descrip.c:1273 closef(fffffd802d8424c0,ffff8000ffff2ee8) at closef+0x118 sys/kern/kern_descrip.c:1257 fdfree(ffff8000ffff2ee8) at fdfree+0x100 sys/kern/kern_descrip.c:1189 exit1(ffff8000ffff2ee8,19,1) at exit1+0x32f sys/kern/kern_exit.c:196 postsig(ffff8000ffff2ee8,19) at postsig+0x4a6 sigexit sys/kern/kern_sig.c:1499 [inline] postsig(ffff8000ffff2ee8,19) at postsig+0x4a6 sys/kern/kern_sig.c:1431 userret(ffff8000ffff2ee8) at userret+0x159 sys/kern/kern_sig.c:1889 syscall(ffff80001494f700) at syscall+0x42e mi_syscall_return sys/sys/syscall_mi.h:115 [inline] syscall(ffff80001494f700) at syscall+0x42e sys/arch/amd64/amd64/trap.c:577 Xsyscall(6,0,7f7ffffc9620,57,0,7f7ffffc9644) at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc9690, count: -15 ddb> show registers rdi 0 rsi 0 rbp 0xffff80001494f0e0 rbx 0 rdx 0 rcx 0xfffffd803b05c500 rax 0 r8 0xffff800000b16c00 r9 0x1 r10 0xc5d0291a16bc90f8 r11 0xf7f6a8af9fdf0401 r12 0x1fe6704d77a8 r13 0 r14 0xffff800000b16700 r15 0xffff800000b00800 rip 0xffffffff8118f7c5 in6_purgeaddr+0x135 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff80001494f070 ss 0x10 in6_purgeaddr+0x135: movq 0x8(%r12),%r13 ddb> show proc PROC (syz-executor.0) pid=344103 stat=onproc flags process=a proc=2000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff29f8,0xffff8000ffff8018 process=0xffff8000148a30f8 user=0xffff80001494a000, vmspace=0xfffffd803f014880 estcpu=36, cpticks=2, pctcpu=0.0 user=0, sys=2, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 42779 54661 91855 0 2 0x482 syz-executor.1 64206 81313 1 0 3 0x100083 ttyin getty 70898 459698 0 0 3 0x14200 acct acct 64601 36112 0 0 3 0x14200 bored sosplice 91855 232290 11814 0 3 0x82 thrsleep syz-fuzzer 91855 52792 11814 0 3 0x4000082 nanosleep syz-fuzzer 91855 191858 11814 0 2 0x4000082 syz-fuzzer 91855 505156 11814 0 3 0x4000082 thrsleep syz-fuzzer 91855 20149 11814 0 3 0x4000082 thrsleep syz-fuzzer 91855 507098 11814 0 3 0x4000082 thrsleep syz-fuzzer 91855 76773 11814 0 3 0x4000082 thrsleep syz-fuzzer 91855 115936 11814 0 3 0x4000082 thrsleep syz-fuzzer 11814 135248 75201 0 3 0x10008a pause ksh 75201 181368 59256 0 3 0x92 select sshd 59256 373019 1 0 3 0x80 select sshd 5972 208239 86466 73 3 0x100090 kqread syslogd 86466 368395 1 0 3 0x100082 netio syslogd 56718 345956 1 77 2 0x100090 dhclient 25044 456464 1 0 3 0x80 poll dhclient 80195 159148 0 0 2 0x14200 zerothread 12313 331879 0 0 3 0x14200 aiodoned aiodoned 99068 413129 0 0 3 0x14200 syncer update 58543 512127 0 0 3 0x14200 cleaner cleaner 59990 29791 0 0 3 0x14200 reaper reaper 17566 459854 0 0 3 0x14200 pgdaemon pagedaemon 93592 101663 0 0 3 0x14200 bored crynlk 20346 410081 0 0 3 0x14200 bored crypto 83619 147307 0 0 3 0x40014200 acpi0 acpi0 33845 225345 0 0 2 0x14200 softnet 80980 54848 0 0 2 0x14200 systqmp 19663 420565 0 0 3 0x14200 bored systq 50869 19948 0 0 2 0x40014200 softclock 86599 90729 0 0 3 0x40014200 idle0 5079 383319 0 0 3 0x14200 bored smr 1 77298 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 9551 6618K 6996K 78643K 13411 0 0 pcb 13 8K 8K 78643K 294 0 0 rtable 104 4K 5K 78643K 1075 0 0 ifaddr 67 15K 17K 78643K 295 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 122 0 0 iov 0 0K 16K 78643K 317 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1223 77K 77K 78643K 2544 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 23 0 0 VM map 13 3K 3K 78643K 16 0 0 sem 12 0K 1K 78643K 285 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 4 9K 25K 78643K 1348 0 0 sigio 0 0K 0K 78643K 9 0 0 proc 49 38K 63K 78643K 898 0 0 subproc 23 1K 2K 78643K 187 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 110 0 0 in_multi 20 1K 2K 78643K 229 0 0 ether_multi 1 0K 0K 78643K 12 0 0 mrt 0 0K 0K 78643K 11 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 102 450K 450K 78643K 102 0 0 exec 0 0K 1K 78643K 470 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 132 120K 129K 78643K 5153 0 0 UVM aobj 89 5K 5K 78643K 92 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 273 0 0 NDP 15 0K 0K 78643K 98 0 0 temp 162 3543K 3609K 78643K 25247 0 0 kqueue 0 0K 0K 78643K 22 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 32 0 27 1 0 1 1 0 8 0 rtpcb 80 123 0 121 1 0 1 1 0 8 0 rtentry 112 215 0 176 2 0 2 2 0 8 0 unpcb 120 1038 0 1030 1 0 1 1 0 8 0 syncache 264 7 0 7 3 3 0 1 0 8 0 tcpqe 32 29 0 29 2 2 0 1 0 8 0 tcpcb 544 1347 0 1337 2 1 1 2 0 8 0 ipq 40 9 0 9 6 6 0 1 0 8 0 ipqe 40 233 0 233 6 6 0 1 0 8 0 inpcb 280 2506 0 2499 13 11 2 2 0 8 1 rttmr 72 5 0 5 3 2 1 1 0 8 1 ip6q 72 1 0 1 1 1 0 1 0 8 0 ip6af 40 3 0 3 1 1 0 1 0 8 0 nd6 48 33 0 31 1 0 1 1 0 8 0 pkpcb 40 4 0 4 2 2 0 1 0 8 0 ppxss 1128 26 0 26 9 9 0 1 0 8 0 art_heap8 4096 4 0 2 4 2 2 3 0 8 0 art_heap4 256 978 0 759 23 7 16 16 0 8 0 art_table 32 982 0 761 2 0 2 2 0 8 0 art_node 16 214 0 173 1 0 1 1 0 8 0 sysvmsgpl 40 50 0 26 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 283 0 273 1 0 1 1 0 8 0 shmpl 112 90 0 3 3 0 3 3 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 3561 0 2165 46 0 46 46 0 8 0 ffsino 240 3561 0 2165 83 0 83 83 0 8 0 nchpl 144 5761 0 5299 60 40 20 60 0 8 0 uvmvnodes 72 4412 0 0 81 0 81 81 0 8 0 vnodes 208 4412 0 0 233 0 233 233 0 8 0 namei 1024 21909 0 21909 3 2 1 1 0 8 1 vcpupl 1984 12 0 1 2 0 2 2 0 8 0 vmpool 520 14 0 3 1 0 1 1 0 8 0 scsiplug 64 2 0 2 1 1 0 1 0 8 0 scxspl 192 21087 0 21087 13 10 3 6 0 8 3 plimitpl 152 154 0 147 1 0 1 1 0 8 0 sigapl 432 1493 0 1481 2 0 2 2 0 8 0 futexpl 56 40982 0 40982 3 2 1 1 0 8 1 knotepl 112 460 0 441 5 4 1 3 0 8 0 kqueuepl 104 639 0 637 1 0 1 1 0 8 0 pipepl 112 902 0 884 1 0 1 1 0 8 0 fdescpl 424 1494 0 1481 2 0 2 2 0 8 0 filepl 120 16203 0 16118 11 7 4 6 0 8 0 lockfpl 104 426 0 425 1 0 1 1 0 8 0 lockfspl 48 150 0 149 1 0 1 1 0 8 0 sessionpl 112 28 0 18 1 0 1 1 0 8 0 pgrppl 48 38 0 28 1 0 1 1 0 8 0 ucredpl 96 4826 0 4819 1 0 1 1 0 8 0 zombiepl 144 1484 0 1482 1 0 1 1 0 8 0 processpl 864 1512 0 1482 4 0 4 4 0 8 0 procpl 632 3613 0 3576 6 2 4 5 0 8 0 sosppl 128 13 0 13 5 5 0 1 0 8 0 sockpl 384 3698 0 3681 20 16 4 5 0 8 2 mcl64k 65536 145 0 145 10 9 1 1 0 8 1 mcl16k 16384 28 0 28 14 13 1 1 0 8 1 mcl12k 12288 70 0 70 13 12 1 1 0 8 1 mcl9k 9216 29 0 29 13 12 1 1 0 8 1 mcl8k 8192 143 0 143 7 6 1 1 0 8 1 mcl4k 4096 128 0 128 10 9 1 1 0 8 1 mcl2k2 2112 14 0 14 9 9 0 1 0 8 0 mcl2k 2048 66456 0 66417 14 8 6 11 0 8 0 mtagpl 80 68 0 62 6 5 1 1 0 8 0 mbufpl 256 120949 0 120829 64 49 15 23 0 8 1 bufpl 256 12518 0 5185 459 0 459 459 0 8 0 anonpl 16 755367 0 737456 191 96 95 130 0 62 4 amapchunkpl 152 23171 0 23024 60 47 13 36 0 158 6 amappl16 192 28967 0 27839 174 108 66 81 0 8 6 amappl15 184 245 0 245 2 2 0 1 0 8 0 amappl14 176 287 0 282 1 0 1 1 0 8 0 amappl13 168 9 0 8 1 0 1 1 0 8 0 amappl12 160 335 0 334 1 0 1 1 0 8 0 amappl11 152 226 0 212 1 0 1 1 0 8 0 amappl10 144 80 0 77 1 0 1 1 0 8 0 amappl9 136 926 0 923 1 0 1 1 0 8 0 amappl8 128 519 0 479 2 0 2 2 0 8 0 amappl7 120 151 0 143 1 0 1 1 0 8 0 amappl6 112 208 0 197 1 0 1 1 0 8 0 amappl5 104 589 0 578 1 0 1 1 0 8 0 amappl4 96 1518 0 1487 1 0 1 1 0 8 0 amappl3 88 524 0 518 1 0 1 1 0 8 0 amappl2 80 10885 0 10828 3 1 2 3 0 8 0 amappl1 72 39164 0 38771 26 17 9 20 0 8 0 amappl 80 4348 0 4300 2 0 2 2 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 91 0 3 2 0 2 2 0 8 0 uaddrrnd 24 1508 0 1481 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1508 0 1481 1 0 1 1 0 8 0 vmmpekpl 168 14797 0 14763 2 0 2 2 0 8 0 vmmpepl 168 214748 0 212631 339 192 147 172 0 357 41 vmsppl 272 1493 0 1481 5 3 2 2 0 8 1 pdppl 4096 3022 0 2979 11 4 7 7 0 8 1 pvpl 32 1213908 0 1192933 521 196 325 394 0 265 125 pmappl 200 1507 0 1484 2 0 2 2 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 714 0 115 18 0 18 18 0 8 0