uvm_fault(0xfffffd803f013440, 0x5c7, 0, 2) -> e kernel: page fault trap, code=0 Stopped at tun_clone_destroy+0x14f: movq %rax,0x5c8(%r12) ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic kernel page fault uvm_fault(0xfffffd803f013440, 0x5c7, 0, 2) -> e tun_clone_destroy(ffff800000a63800) at tun_clone_destroy+0x14f sys/net/if_tun.c:271 end trace frame: 0xffff80001596e5d0, count: 0 ddb> trace tun_clone_destroy(ffff800000a63800) at tun_clone_destroy+0x14f sys/net/if_tun.c:271 ifioctl(fffffd803de7bda0,80206979,ffff80001596e860,ffff8000ffff3160) at ifioctl+0x3d4 sys/net/if.c:1877 fifo_ioctl(ffff80001596e6a8) at fifo_ioctl+0x99 sys/miscfs/fifofs/fifo_vnops.c:276 VOP_IOCTL(fffffd802d858420,80206979,ffff80001596e860,3,fffffd803f7c69c0,ffff8000ffff3160) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 vn_ioctl(fffffd802afd3888,80206979,ffff80001596e860,ffff8000ffff3160) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:524 sys_ioctl(ffff8000ffff3160,ffff80001596e978,ffff80001596e9c0) at sys_ioctl+0x5b9 syscall(ffff80001596ea40) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,468f02db0e0) at Xsyscall+0x128 end of kernel end trace frame: 0x46bdb7e6c70, count: -8 ddb> show registers rdi 0xffffffff81f98c58 tun_clone_destroy+0x148 rsi 0x59 rbp 0xffff80001596e500 rbx 0xffff80001596e860 rdx 0x5a rcx 0xffff800016d45000 rax 0xffffffffffffffff r8 0x101010101010101 r9 0x8080808080808080 r10 0x62f8dd567a2b0ce5 r11 0x14a3ba3376d711fd r12 0xffffffffffffffff r13 0 r14 0xffff800000a63800 r15 0xffff800000a63800 rip 0xffffffff81f98c5f tun_clone_destroy+0x14f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80001596e4c0 ss 0x10 tun_clone_destroy+0x14f: movq %rax,0x5c8(%r12) ddb> show proc PROC (syz-executor.0) pid=308888 stat=onproc flags process=0 proc=4000000 pri=52, usrpri=52, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff2ee8,0xffff8000ffff38d8 process=0xffff8000ffff70f0 user=0xffff800015969000, vmspace=0xfffffd803f013440 estcpu=2, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 4078 315746 13942 0 3 0x80 nanosleep syz-executor.1 4078 35814 13942 0 3 0x4000080 netio syz-executor.1 4078 174171 13942 0 3 0x4000080 fsleep syz-executor.1 90291 58514 22461 0 2 0 syz-executor.0 90291 122939 22461 0 3 0x4000000 tqbar syz-executor.0 *90291 308888 22461 0 7 0x4000000 syz-executor.0 66969 365062 0 0 3 0x14200 bored sosplice 22461 464086 65332 0 3 0x82 nanosleep syz-executor.0 13942 521423 65332 0 3 0x82 nanosleep syz-executor.1 65332 118173 33582 0 3 0x82 thrsleep syz-fuzzer 65332 404026 33582 0 3 0x4000082 thrsleep syz-fuzzer 65332 213127 33582 0 3 0x4000082 thrsleep syz-fuzzer 65332 143382 33582 0 3 0x4000082 thrsleep syz-fuzzer 65332 107367 33582 0 3 0x4000082 thrsleep syz-fuzzer 65332 53262 33582 0 3 0x4000082 kqread syz-fuzzer 65332 61596 33582 0 3 0x4000082 thrsleep syz-fuzzer 33582 370400 98882 0 3 0x10008a pause ksh 98882 344675 4189 0 3 0x92 select sshd 55311 97582 1 0 3 0x100083 ttyin getty 4189 362581 1 0 3 0x80 select sshd 10695 180753 49560 73 3 0x100090 kqread syslogd 49560 193510 1 0 3 0x100082 netio syslogd 49370 92699 1 77 3 0x100090 poll dhclient 40481 496106 1 0 3 0x80 poll dhclient 94008 186971 0 0 3 0x14200 pgzero zerothread 7383 471548 0 0 3 0x14200 aiodoned aiodoned 34550 167155 0 0 3 0x14200 syncer update 80845 302040 0 0 3 0x14200 cleaner cleaner 96649 18918 0 0 3 0x14200 reaper reaper 28955 420482 0 0 3 0x14200 pgdaemon pagedaemon 31407 190215 0 0 3 0x14200 bored crynlk 36474 351276 0 0 3 0x14200 bored crypto 91702 455157 0 0 3 0x40014200 acpi0 acpi0 38221 339364 0 0 3 0x14200 bored softnet 16531 334974 0 0 3 0x14200 bored systqmp 75799 215496 0 0 3 0x14200 tqbar systq 18784 355220 0 0 3 0x40014200 bored softclock 83812 64335 0 0 3 0x40014200 idle0 36562 389714 0 0 3 0x14200 bored smr 1 454513 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 9462 6445K 6635K 78643K 10671 0 0 pcb 13 8K 8K 78643K 33 0 0 rtable 100 3K 3K 78643K 203 0 0 ifaddr 38 10K 10K 78643K 39 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 21 0 0 iov 0 0K 16K 78643K 22 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1217 76K 76K 78643K 1262 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 3 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 12 0K 0K 78643K 27 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 6 17K 25K 78643K 88 0 0 sigio 0 0K 0K 78643K 2 0 0 proc 47 38K 63K 78643K 354 0 0 subproc 32 2K 2K 78643K 34 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 in_multi 33 2K 2K 78643K 33 0 0 ether_multi 1 0K 0K 78643K 2 0 0 mrt 0 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 54 238K 238K 78643K 54 0 0 exec 0 0K 1K 78643K 186 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 95 21K 21K 78643K 1076 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 20 0 0 NDP 6 0K 0K 78643K 10 0 0 temp 93 3529K 3593K 78643K 3429 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 6 0 1 1 0 1 1 0 8 0 rtpcb 80 19 0 17 1 0 1 1 0 8 0 rtentry 112 45 0 4 2 0 2 2 0 8 0 unpcb 120 200 0 182 2 0 2 2 0 8 1 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 5576 0 5576 2 2 0 1 0 8 0 tcpcb 544 41 0 35 1 0 1 1 0 8 0 inpcb 280 110 0 100 1 0 1 1 0 8 0 nd6 48 4 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 212 0 2 14 0 14 14 0 8 0 art_table 32 213 0 2 2 0 2 2 0 8 0 art_node 16 44 0 7 1 0 1 1 0 8 0 semapl 112 25 0 15 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 1504 0 105 46 0 46 46 0 8 0 ffsino 240 1504 0 105 83 0 83 83 0 8 0 nchpl 144 1846 0 231 60 0 60 60 0 8 0 uvmvnodes 72 1573 0 0 29 0 29 29 0 8 0 vnodes 208 1573 0 0 83 0 83 83 0 8 0 namei 1024 4551 0 4551 3 2 1 1 0 8 1 scxspl 192 5029 0 5029 10 8 2 7 0 8 2 plimitpl 152 18 0 11 1 0 1 1 0 8 0 sigapl 432 259 0 245 2 0 2 2 0 8 0 futexpl 56 1836 0 1835 1 0 1 1 0 8 0 knotepl 112 61 0 42 1 0 1 1 0 8 0 kqueuepl 104 22 0 20 1 0 1 1 0 8 0 pipepl 112 162 0 143 2 1 1 1 0 8 0 fdescpl 424 260 0 245 2 0 2 2 0 8 0 filepl 120 1657 0 1545 5 0 5 5 0 8 1 lockfpl 104 21 0 20 1 0 1 1 0 8 0 lockfspl 48 9 0 8 1 0 1 1 0 8 0 sessionpl 112 17 0 7 1 0 1 1 0 8 0 pgrppl 48 17 0 7 1 0 1 1 0 8 0 ucredpl 96 119 0 111 1 0 1 1 0 8 0 zombiepl 144 245 0 245 3 2 1 1 0 8 1 processpl 864 275 0 245 4 0 4 4 0 8 0 procpl 632 384 0 344 4 0 4 4 0 8 0 sosppl 128 5 0 5 1 0 1 1 0 8 1 sockpl 384 329 0 298 5 0 5 5 0 8 1 mcl64k 65536 11 0 9 1 0 1 1 0 8 0 mcl12k 12288 4 0 4 1 0 1 1 0 8 1 mcl9k 9216 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 6 0 6 1 0 1 1 0 8 1 mcl4k 4096 19 0 19 2 1 1 1 0 8 1 mcl2k2 2112 1 0 1 1 0 1 1 0 8 1 mcl2k 2048 61845 0 61806 19 9 10 17 0 8 4 mtagpl 80 7 0 7 2 1 1 1 0 8 1 mbufpl 256 100663 0 100593 11 1 10 10 0 8 2 bufpl 256 6290 0 1451 303 0 303 303 0 8 0 anonpl 16 41973 0 25008 72 2 70 70 0 62 1 amapchunkpl 152 1320 0 1206 8 3 5 7 0 158 0 amappl16 192 1308 0 353 49 0 49 49 0 8 1 amappl15 184 2 0 1 1 0 1 1 0 8 0 amappl14 176 30 0 27 2 1 1 1 0 8 0 amappl13 168 24 0 22 1 0 1 1 0 8 0 amappl12 160 38 0 32 1 0 1 1 0 8 0 amappl11 152 44 0 33 1 0 1 1 0 8 0 amappl10 144 8 0 7 1 0 1 1 0 8 0 amappl9 136 573 0 567 1 0 1 1 0 8 0 amappl8 128 150 0 124 1 0 1 1 0 8 0 amappl7 120 36 0 33 1 0 1 1 0 8 0 amappl6 112 68 0 58 1 0 1 1 0 8 0 amappl5 104 173 0 160 1 0 1 1 0 8 0 amappl4 96 443 0 415 1 0 1 1 0 8 0 amappl3 88 143 0 136 1 0 1 1 0 8 0 amappl2 80 1323 0 1246 4 2 2 3 0 8 0 amappl1 72 14298 0 13856 27 18 9 20 0 8 0 amappl 80 622 0 582 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 5 0 0 1 0 1 1 0 8 0 uaddrrnd 24 260 0 245 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 260 0 245 1 0 1 1 0 8 0 vmmpekpl 168 6089 0 6066 2 0 2 2 0 8 0 vmmpepl 168 38835 0 36699 144 28 116 118 0 357 23 vmsppl 272 259 0 245 2 1 1 2 0 8 0 pdppl 4096 526 0 490 6 1 5 6 0 8 0 pvpl 32 138596 0 118478 175 9 166 166 0 265 3 pmappl 200 259 0 245 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 452 0 17 13 0 13 13 0 8 0