login: uvm_fault(0xfffffd807f008a10, 0x3c4868, 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(0xfffffd807f008a10, 0x3c4868, 0, 1) -> e in6_purgeaddr(ffff800000a4b700) at in6_purgeaddr+0x135 sys/netinet6/in6.c:914 end trace frame: 0xffff800022d9eae0, count: 0 ddb{0}> trace in6_purgeaddr(ffff800000a4b700) at in6_purgeaddr+0x135 sys/netinet6/in6.c:914 in6_ifdetach(ffff800000a96800) at in6_ifdetach+0x74 sys/netinet6/in6_ifattach.c:422 if_detach(ffff800000a96800) at if_detach+0x155 sys/net/if.c:1110 tun_clone_destroy(ffff800000a96800) at tun_clone_destroy+0x1c7 sys/net/if_tun.c:278 spec_close(ffff800022d9ec10) at spec_close+0x311 sys/kern/spec_vnops.c:555 VOP_CLOSE(fffffd80784341a8,7,fffffd807f7c66c0,ffff800020ab0508) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:175 vn_closefile(fffffd8063ea4a30,ffff800020ab0508) at vn_closefile+0xd8 vn_close sys/kern/vfs_vnops.c:301 [inline] vn_closefile(fffffd8063ea4a30,ffff800020ab0508) at vn_closefile+0xd8 sys/kern/vfs_vnops.c:613 fdrop(fffffd8063ea4a30,ffff800020ab0508) at fdrop+0xc2 sys/kern/kern_descrip.c:1273 closef(fffffd8063ea4a30,ffff800020ab0508) at closef+0x11d sys/kern/kern_descrip.c:1257 fdfree(ffff800020ab0508) at fdfree+0x101 sys/kern/kern_descrip.c:1189 exit1(ffff800020ab0508,19,1) at exit1+0x32f sys/kern/kern_exit.c:196 postsig(ffff800020ab0508,19) at postsig+0x4e3 sigexit sys/kern/kern_sig.c:1499 [inline] postsig(ffff800020ab0508,19) at postsig+0x4e3 sys/kern/kern_sig.c:1431 userret(ffff800020ab0508) at userret+0x199 sys/kern/kern_sig.c:1889 Xsyscall(6,0,7f7ffffed060,89,b867d4dcd00,7f7ffffed520) at Xsyscall+0x156 end of kernel end trace frame: 0x7f7ffffed510, count: -14 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800022d9ea70 rbx 0 rdx 0xf rcx 0x10 rax 0 r8 0xffffffff81cdc104 rt_ifa_dellocal+0x44 r9 0x1 r10 0x18 r11 0x4dd7cbedb601b734 r12 0x3c4860 acpi_pdirpa+0x3b06c8 r13 0 r14 0xffff800000a4b700 r15 0xffff800000a96800 rip 0xffffffff82171be5 in6_purgeaddr+0x135 cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff800022d9ea00 ss 0x10 in6_purgeaddr+0x135: movq 0x8(%r12),%r13 ddb{0}> show proc PROC (syz-executor.1) pid=2807 stat=onproc flags process=a proc=2000 pri=17, usrpri=58, nice=20 forw=0xffffffffffffffff, list=0xffff800020ab09f8,0xffff800020ab0790 process=0xffff800020adca80 user=0xffff800022d9a000, vmspace=0xfffffd807f008a10 estcpu=36, cpticks=3, pctcpu=0.7 user=0, sys=2, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 88090 106734 79923 0 2 0 syz-executor.0 88090 102429 79923 0 7 0x4000000 syz-executor.0 79923 200733 57832 0 2 0x482 syz-executor.0 57832 220157 15862 0 2 0x82 syz-fuzzer 57832 20525 15862 0 3 0x4000082 nanosleep syz-fuzzer 57832 20049 15862 0 3 0x4000082 thrsleep syz-fuzzer 57832 425922 15862 0 3 0x4000082 thrsleep syz-fuzzer 57832 139379 15862 0 3 0x4000082 thrsleep syz-fuzzer 57832 425532 15862 0 3 0x4000082 thrsleep syz-fuzzer 57832 410863 15862 0 3 0x4000082 thrsleep syz-fuzzer 57832 329891 15862 0 3 0x4000082 thrsleep syz-fuzzer 57832 123919 15862 0 3 0x4000082 thrsleep syz-fuzzer 57832 68506 15862 0 3 0x4000082 thrsleep syz-fuzzer 15862 485276 34851 0 3 0x10008a pause ksh 34851 17853 95756 0 3 0x92 select sshd 14905 496980 1 0 3 0x100083 ttyin getty 95756 462859 1 0 3 0x80 select sshd 1979 365544 57689 74 3 0x100092 bpf pflogd 57689 132795 1 0 3 0x80 netio pflogd 16288 302789 22872 73 3 0x100090 kqread syslogd 22872 495911 1 0 3 0x100082 netio syslogd 2967 42797 1 77 2 0x100090 dhclient 48725 297558 1 0 3 0x80 poll dhclient 66102 287865 0 0 2 0x14200 zerothread 89342 292010 0 0 3 0x14200 aiodoned aiodoned 17425 238413 0 0 3 0x14200 syncer update 70756 420751 0 0 3 0x14200 cleaner cleaner 4155 127291 0 0 3 0x14200 reaper reaper 28036 447743 0 0 3 0x14200 pgdaemon pagedaemon 5328 440151 0 0 3 0x14200 bored crynlk 25778 51255 0 0 3 0x14200 bored crypto 69534 338364 0 0 3 0x40014200 acpi0 acpi0 75452 184832 0 0 3 0x40014200 idle1 22920 451750 0 0 2 0x14200 softnet 65907 209172 0 0 2 0x14200 systqmp 63962 484027 0 0 3 0x14200 bored systq 20322 145261 0 0 3 0x40014200 bored softclock 71827 22786 0 0 3 0x40014200 idle0 65090 84601 0 0 3 0x14200 bored smr 1 215322 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 9492 6403K 6662K 78643K 10672 0 0 pcb 13 8K 8K 78643K 29 0 0 rtable 93 2K 3K 78643K 231 0 0 ifaddr 45 11K 11K 78643K 47 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1470 0 0 iov 0 0K 12K 78643K 7 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1221 77K 77K 78643K 1255 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 4 0 0 VM map 2 1K 1K 78643K 2 0 0 sem 12 0K 0K 78643K 15 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1809 196K 290K 78643K 12766 0 0 file desc 5 13K 25K 78643K 77 0 0 sigio 0 0K 0K 78643K 2 0 0 proc 59 63K 83K 78643K 445 0 0 subproc 23 1K 2K 78643K 34 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 11 0 0 in_multi 23 1K 2K 78643K 34 0 0 ether_multi 1 0K 0K 78643K 1 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 36 159K 159K 78643K 36 0 0 exec 0 0K 1K 78643K 215 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 116 22K 23K 78643K 1179 0 0 UVM aobj 6 2K 2K 78643K 6 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 12 0 0 NDP 8 0K 0K 78643K 12 0 0 temp 110 3550K 3618K 78643K 4177 0 0 kqueue 0 0K 0K 78643K 5 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 8 0 3 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 22 0 20 1 0 1 1 0 8 0 rtentry 112 52 0 14 2 0 2 2 0 8 0 unpcb 120 47 0 37 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 113 0 113 1 0 1 1 0 8 1 tcpcb 544 30 0 26 1 0 1 1 0 8 0 inpcb 280 114 0 107 2 0 2 2 0 8 1 nd6 48 5 0 2 1 0 1 1 0 8 0 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 18 0 0 1 0 1 1 0 8 0 pfstkey 112 18 0 0 1 0 1 1 0 8 0 pfstate 328 18 0 0 2 0 2 2 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 241 0 11 15 0 15 15 0 8 0 art_table 32 242 0 11 2 0 2 2 0 8 0 art_node 16 51 0 13 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 4 1 0 1 1 0 8 1 semupl 112 3 0 3 1 0 1 1 0 8 1 semapl 112 13 0 3 1 0 1 1 0 8 0 shmpl 112 4 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1501 0 95 46 0 46 46 0 8 0 ffsino 272 1501 0 95 95 0 95 95 0 8 0 nchpl 144 1832 0 220 60 0 60 60 0 8 0 uvmvnodes 72 1567 0 0 29 0 29 29 0 8 0 vnodes 208 1567 0 0 83 0 83 83 0 8 0 namei 1024 4795 0 4795 1 0 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 scxspl 192 4899 0 4899 2 1 1 2 0 8 1 plimitpl 152 19 0 11 1 0 1 1 0 8 0 sigapl 432 275 0 260 3 0 3 3 0 8 1 futexpl 56 1302 0 1302 1 0 1 1 0 8 1 knotepl 112 58 0 39 1 0 1 1 0 8 0 kqueuepl 104 25 0 23 1 0 1 1 0 8 0 pipepl 112 184 0 166 1 0 1 1 0 8 0 fdescpl 488 276 0 260 3 0 3 3 0 8 0 filepl 152 1629 0 1539 5 0 5 5 0 8 1 lockfpl 104 35 0 34 1 0 1 1 0 8 0 lockfspl 48 14 0 13 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 18 0 7 1 0 1 1 0 8 0 ucredpl 96 131 0 122 1 0 1 1 0 8 0 zombiepl 144 261 0 260 1 0 1 1 0 8 0 processpl 896 291 0 260 4 0 4 4 0 8 0 procpl 632 415 0 374 5 0 5 5 0 8 1 srpgc 64 2 0 0 1 0 1 1 0 8 0 sockpl 384 183 0 164 3 0 3 3 0 8 1 mcl64k 65536 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 3 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 156 0 0 19 0 19 19 0 8 0 mtagpl 80 6 0 0 1 0 1 1 0 8 0 mbufpl 256 167 0 0 10 0 10 10 0 8 0 bufpl 256 6377 0 1310 317 0 317 317 0 8 0 anonpl 16 43711 0 24915 77 1 76 76 0 124 0 amapchunkpl 152 1422 0 1253 9 0 9 9 0 158 1 amappl16 192 1314 0 302 51 0 51 51 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 48 0 42 1 0 1 1 0 8 0 amappl12 160 23 0 16 1 0 1 1 0 8 0 amappl11 152 56 0 40 1 0 1 1 0 8 0 amappl10 144 63 0 55 1 0 1 1 0 8 0 amappl9 136 601 0 598 1 0 1 1 0 8 0 amappl8 128 176 0 146 2 0 2 2 0 8 0 amappl7 120 78 0 74 1 0 1 1 0 8 0 amappl6 112 57 0 50 1 0 1 1 0 8 0 amappl5 104 135 0 121 1 0 1 1 0 8 0 amappl4 96 525 0 495 1 0 1 1 0 8 0 amappl3 88 113 0 106 1 0 1 1 0 8 0 amappl2 80 1258 0 1189 3 1 2 3 0 8 0 amappl1 72 16018 0 15580 25 10 15 20 0 8 5 amappl 80 671 0 620 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 18 0 17 1 0 1 1 0 8 0 aobjpl 64 5 0 0 1 0 1 1 0 8 0 uaddrrnd 24 276 0 260 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 276 0 260 1 0 1 1 0 8 0 vmmpekpl 168 6358 0 6327 3 1 2 2 0 8 0 vmmpepl 168 41239 0 39075 139 3 136 136 0 357 38 vmsppl 368 275 0 260 2 0 2 2 0 8 0 pdppl 4096 559 0 520 6 0 6 6 0 8 0 pvpl 32 145998 0 124033 181 0 181 181 0 265 3 pmappl 232 275 0 260 2 0 2 2 0 8 1 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 477 0 3 14 0 14 14 0 8 0