uvm_fault(0xfffffd807f00a2e0, 0xa0a31, 0, 1) -> e kernel: page fault trap, code=0 Stopped at in6_purgeaddr+0x135: movq 0x8(%r12),%r13 ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xfffffd807f00a2e0, 0xa0a31, 0, 1) -> e in6_purgeaddr(ffff800000e29a00) at in6_purgeaddr+0x135 sys/netinet6/in6.c:914 end trace frame: 0xffff800021ba9400, count: 0 ddb{0}> trace in6_purgeaddr(ffff800000e29a00) at in6_purgeaddr+0x135 sys/netinet6/in6.c:914 in6_ifdetach(ffff800000aa6000) at in6_ifdetach+0x74 sys/netinet6/in6_ifattach.c:422 if_detach(ffff800000aa6000) at if_detach+0x148 sys/net/if.c:1157 tun_clone_destroy(ffff800000aa6000) at tun_clone_destroy+0x1c7 sys/net/if_tun.c:278 spec_close(ffff800021ba9530) at spec_close+0x311 sys/kern/spec_vnops.c:555 VOP_CLOSE(fffffd807b3465b8,7,fffffd807f7c6900,ffff800020ab0c70) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:175 vn_closefile(fffffd807508cc78,ffff800020ab0c70) at vn_closefile+0xd8 vn_close sys/kern/vfs_vnops.c:301 [inline] vn_closefile(fffffd807508cc78,ffff800020ab0c70) at vn_closefile+0xd8 sys/kern/vfs_vnops.c:613 fdrop(fffffd807508cc78,ffff800020ab0c70) at fdrop+0xc2 sys/kern/kern_descrip.c:1273 closef(fffffd807508cc78,ffff800020ab0c70) at closef+0x11d sys/kern/kern_descrip.c:1257 fdfree(ffff800020ab0c70) at fdfree+0x101 sys/kern/kern_descrip.c:1189 exit1(ffff800020ab0c70,19,1) at exit1+0x32f sys/kern/kern_exit.c:196 postsig(ffff800020ab0c70,19) at postsig+0x4e3 sigexit sys/kern/kern_sig.c:1499 [inline] postsig(ffff800020ab0c70,19) at postsig+0x4e3 sys/kern/kern_sig.c:1431 userret(ffff800020ab0c70) at userret+0x199 sys/kern/kern_sig.c:1889 Xsyscall(6,38,7f7ffffe6a40,3,0,85f97865000) at Xsyscall+0x156 end of kernel end trace frame: 0x7f7ffffe6a30, count: -14 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800021ba9390 rbx 0 rdx 0x447 rcx 0x448 rax 0 r8 0xffffffff81c09334 rt_ifa_dellocal+0x44 r9 0x1 r10 0x18 r11 0x30b0eb77752e5924 r12 0xa0a29 acpi_pdirpa+0x8c891 r13 0 r14 0xffff800000e29a00 r15 0xffff800000aa6000 rip 0xffffffff816df045 in6_purgeaddr+0x135 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff800021ba9320 ss 0x10 in6_purgeaddr+0x135: movq 0x8(%r12),%r13 ddb{0}> show proc PROC (syz-executor.0) pid=14681 stat=onproc flags process=a proc=2000 pri=17, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020abe7a0,0xffff800020abe538 process=0xffff800020a8aa90 user=0xffff800021ba4000, vmspace=0xfffffd807f00a2e0 estcpu=36, cpticks=9, pctcpu=0.14 user=0, sys=3, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 97124 63237 91775 0 7 0 syz-executor.1 97124 48513 91775 0 3 0x4000080 netio syz-executor.1 91775 23434 78698 0 3 0x82 nanosleep syz-executor.1 76606 49858 1 0 3 0x100083 ttyin getty 51612 44829 0 0 3 0x14200 acct acct 67992 237845 0 0 3 0x14200 bored sosplice 78698 343587 10207 0 3 0x82 thrsleep syz-fuzzer 78698 498283 10207 0 3 0x4000082 nanosleep syz-fuzzer 78698 376218 10207 0 3 0x4000082 thrsleep syz-fuzzer 78698 177879 10207 0 3 0x4000082 thrsleep syz-fuzzer 78698 177062 10207 0 3 0x4000082 thrsleep syz-fuzzer 78698 367651 10207 0 2 0x4000082 syz-fuzzer 78698 69301 10207 0 3 0x4000082 thrsleep syz-fuzzer 78698 417136 10207 0 3 0x4000082 nanosleep syz-fuzzer 78698 180166 10207 0 3 0x4000082 thrsleep syz-fuzzer 78698 426952 10207 0 3 0x4000082 thrsleep syz-fuzzer 10207 460294 12134 0 3 0x10008a pause ksh 12134 323509 43651 0 3 0x92 select sshd 43651 267730 1 0 3 0x80 select sshd 95984 95402 66439 74 3 0x100092 bpf pflogd 66439 334998 1 0 3 0x80 netio pflogd 85565 390991 30790 73 3 0x100090 kqread syslogd 30790 281523 1 0 3 0x100082 netio syslogd 94525 453479 1 77 2 0x100090 dhclient 48497 28508 1 0 3 0x80 poll dhclient 69686 158067 0 0 2 0x14200 zerothread 72869 263503 0 0 3 0x14200 aiodoned aiodoned 24667 143517 0 0 3 0x14200 syncer update 81813 72554 0 0 3 0x14200 cleaner cleaner 86970 258050 0 0 3 0x14200 reaper reaper 98685 54927 0 0 3 0x14200 pgdaemon pagedaemon 66964 215983 0 0 3 0x14200 bored crynlk 8821 224033 0 0 3 0x14200 bored crypto 28036 272435 0 0 3 0x40014200 acpi0 acpi0 73730 287273 0 0 3 0x40014200 idle1 71489 293088 0 0 2 0x14200 softnet 97051 352241 0 0 2 0x14200 systqmp 6029 142427 0 0 3 0x14200 bored systq 26792 278371 0 0 3 0x40014200 bored softclock 30889 368777 0 0 3 0x40014200 idle0 27303 157296 0 0 3 0x14200 bored smr 1 438889 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9641 6482K 12140K 78643K 243294 0 0 pcb 13 12K 14K 78643K 3892 0 0 rtable 220 20K 21K 78643K 10018 0 0 ifaddr 144 39K 42K 78643K 2990 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 2435 0 0 iov 0 0K 32K 78643K 8806 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1245 78K 80K 78643K 62169 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 9K 78643K 195 0 0 VM map 132 66K 66K 78643K 180 0 0 sem 12 0K 1K 78643K 21415 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12765 0 0 file desc 5 13K 25K 78643K 20914 0 0 sigio 0 0K 0K 78643K 352 0 0 proc 62 63K 95K 78643K 6103 0 0 subproc 23 1K 2K 78643K 1655 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 ip_moptions 0 0K 1K 78643K 2065 0 0 in_multi 55 3K 4K 78643K 2769 0 0 ether_multi 1 0K 0K 78643K 185 0 0 mrt 0 0K 0K 78643K 123 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 114 503K 503K 78643K 114 0 0 exec 0 0K 1K 78643K 3260 0 0 pfkey data 0 0K 4K 78643K 3 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 365 1166K 1175K 78643K 69865 0 0 UVM aobj 130 4K 4K 78643K 130 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 2K 78643K 3465 0 0 NDP 26 0K 1K 78643K 1021 0 0 temp 219 3565K 4214K 78643K 495575 0 0 kqueue 0 0K 0K 78643K 119 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 223 0 219 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 1308 0 1306 1 0 1 1 0 8 0 rtentry 112 2048 0 1958 4 1 3 3 0 8 0 unpcb 120 71985 0 71962 44 42 2 4 0 8 1 syncache 264 93 0 93 39 39 0 1 0 8 0 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 31 0 31 25 25 0 1 0 8 0 tcpcb 544 8745 0 8741 80 79 1 12 0 8 0 inpcb 280 29540 0 29532 114 113 1 13 0 8 0 rttmr 72 39 0 39 13 13 0 1 0 8 0 ip6q 72 17 0 17 10 10 0 1 0 8 0 ip6af 40 39 0 39 10 10 0 1 0 8 0 nd6 48 376 0 372 13 12 1 1 0 8 0 pkpcb 40 88 0 88 24 24 0 1 0 8 0 swfcl 56 2 0 0 1 0 1 1 0 8 0 ppxss 1128 431 0 431 46 45 1 1 0 8 1 pffrag 232 4645 0 4645 41 40 1 1 0 482 1 pffrnode 88 4645 0 4645 41 40 1 1 0 8 1 pffrent 40 183697 0 183697 41 40 1 1 0 8 1 pfosfp 40 846 0 846 5 5 0 5 0 8 0 pfosfpen 112 1428 0 1428 21 21 0 21 0 8 0 pfstitem 24 1310 0 1256 2 0 2 2 0 8 0 pfstkey 112 1318 0 1264 6 3 3 6 0 8 0 pfstate 328 1318 0 1264 21 15 6 18 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 25 0 17 18 10 8 8 0 8 0 art_heap4 256 12039 0 11688 72 49 23 24 0 8 0 art_table 32 12064 0 11705 4 1 3 4 0 8 0 art_node 16 2031 0 1973 1 0 1 1 0 8 0 sysvmsgpl 40 55 0 55 1 1 0 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 21413 0 21403 1 0 1 1 0 8 0 shmpl 112 128 0 0 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 31079 0 29534 52 1 51 51 0 8 0 ffsino 272 31079 0 29534 105 1 104 104 0 8 0 nchpl 144 73741 0 73278 61 40 21 61 0 8 0 uvmvnodes 72 8818 0 0 161 0 161 161 0 8 0 vnodes 208 8818 0 0 465 0 465 465 0 8 0 namei 1024 289771 0 289771 4 3 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 vcpupl 1984 131 0 1 17 0 17 17 0 8 0 vmpool 552 178 0 48 12 2 10 10 0 8 0 scsiplug 64 10 0 10 7 7 0 1 0 8 0 scxspl 192 196911 0 196911 110 108 2 7 0 8 2 plimitpl 152 1282 0 1274 1 0 1 1 0 8 0 sigapl 432 20851 0 20836 4 2 2 3 0 8 0 futexpl 56 880703 0 880703 3 2 1 1 0 8 1 knotepl 112 12262 0 12243 12 11 1 3 0 8 0 kqueuepl 104 24289 0 24287 11 10 1 4 0 8 0 pipepl 112 9758 0 9740 22 21 1 2 0 8 0 fdescpl 488 20852 0 20836 3 0 3 3 0 8 0 filepl 152 300372 0 300276 122 116 6 14 0 8 1 lockfpl 104 5891 0 5888 1 0 1 1 0 8 0 lockfspl 48 1972 0 1970 1 0 1 1 0 8 0 sessionpl 112 137 0 126 1 0 1 1 0 8 0 pgrppl 48 355 0 344 1 0 1 1 0 8 0 ucredpl 96 16817 0 16806 1 0 1 1 0 8 0 zombiepl 144 20847 0 20846 6 5 1 1 0 8 0 processpl 896 20879 0 20846 4 0 4 4 0 8 0 procpl 632 63682 0 63639 8 3 5 5 0 8 0 srpgc 64 200 0 198 56 55 1 1 0 8 0 sosppl 128 580 0 580 57 56 1 1 0 8 1 sockpl 384 103200 0 103166 186 180 6 23 0 8 2 mcl64k 65536 1351 0 0 147 95 52 64 0 8 1 mcl16k 16384 65 0 0 8 5 3 3 0 8 0 mcl12k 12288 41 0 0 2 0 2 2 0 8 0 mcl9k 9216 47 0 0 4 2 2 2 0 8 0 mcl8k 8192 33 0 0 4 2 2 3 0 8 0 mcl4k 4096 57 0 0 5 2 3 3 0 8 0 mcl2k2 2112 19 0 0 2 0 2 2 0 8 0 mcl2k 2048 318 0 0 20 11 9 19 0 8 0 mtagpl 80 916 0 0 11 9 2 11 0 8 0 mbufpl 256 1754 0 0 84 2 82 84 0 8 0 bufpl 256 67548 0 58728 552 0 552 552 0 8 0 anonpl 16 2329773 0 2287029 643 461 182 199 0 124 6 amapchunkpl 152 138279 0 137042 222 170 52 56 0 158 2 amappl16 192 108366 0 106814 573 483 90 99 0 8 8 amappl15 184 2819 0 2818 1 0 1 1 0 8 0 amappl14 176 3216 0 3209 1 0 1 1 0 8 0 amappl13 168 2401 0 2398 1 0 1 1 0 8 0 amappl12 160 3544 0 3542 1 0 1 1 0 8 0 amappl11 152 4547 0 4531 1 0 1 1 0 8 0 amappl10 144 1533 0 1524 1 0 1 1 0 8 0 amappl9 136 4648 0 4645 1 0 1 1 0 8 0 amappl8 128 4423 0 4325 5 1 4 4 0 8 0 amappl7 120 1967 0 1958 1 0 1 1 0 8 0 amappl6 112 4356 0 4340 1 0 1 1 0 8 0 amappl5 104 4614 0 4600 1 0 1 1 0 8 0 amappl4 96 22682 0 22639 4 2 2 2 0 8 0 amappl3 88 6466 0 6449 1 0 1 1 0 8 0 amappl2 80 163696 0 163608 3 1 2 3 0 8 0 amappl1 72 444055 0 443614 26 16 10 20 0 8 0 amappl 80 65898 0 65774 3 0 3 3 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 64 129 0 0 3 0 3 3 0 8 0 uaddrrnd 24 21030 0 20836 2 0 2 2 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 21030 0 20836 2 0 2 2 0 8 0 vmmpekpl 168 143735 0 143675 3 0 3 3 0 8 0 vmmpepl 168 2601072 0 2597923 783 596 187 203 0 357 38 vmsppl 368 20851 0 20836 2 0 2 2 0 8 0 pdppl 4096 42067 0 41898 29 7 22 22 0 8 0 pvpl 32 6393634 0 6369383 858 641 217 259 0 265 10 pmappl 232 21029 0 20884 11 2 9 9 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 1137 0 269 26 0 26 26 0 8 0