kernel: protection fault trap, code=0 Stopped at in_pcb_iterator+0x12b: movq %rcx,0x8(%rdx) ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic the kernel did not panic ddb> trace in_pcb_iterator(ffffffff8396b598,fffffd80797ce148,ffff80003c96cd68) at in_pcb_iterator+0x12b sys/netinet/in_pcb.c:699 sysctl_file(ffff80003c96d068,4,0,ffff80003c96d098,ffff80003852c550) at sysctl_file+0xc57 sys/kern/kern_sysctl.c:-1 kern_sysctl(ffff80003c96d064,5,0,ffff80003c96d098,0,0,c820bda7ec84c93) at kern_sysctl+0x167 sys/kern/kern_sysctl.c:526 sys_sysctl(ffff80003852c550,ffff80003c96d1d0,ffff80003c96d120) at sys_sysctl+0x3f2 sys/kern/kern_sysctl.c:-1 syscall(ffff80003c96d1d0) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c96d1d0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6ff70ac1970, count: -6 ddb> show registers rdi 0xffff800038540000 rsi 0xb2 rbp 0xffff80003c96cd40 rbx 0 rdx 0xc850f857dcc78068 rcx 0xffff80003c96cd70 rax 0xfffffd80797ce008 r8 0xffff80003852c550 r9 0 r10 0x34214342ba3565a6 r11 0x6ce1f58dbdac995e r12 0xfffffd80797ce148 r13 0xfffffd80797ce000 r14 0xffffffff8396b5a8 tcbtable+0x10 r15 0xffff80003c96cd68 rip 0xffffffff830ab85b in_pcb_iterator+0x12b cs 0x8 rflags 0x10286 __ALIGN_SIZE+0xf286 rsp 0xffff80003c96cce0 ss 0x10 in_pcb_iterator+0x12b: movq %rcx,0x8(%rdx) ddb> show proc PROC (syz-executor) tid=253661 pid=96818 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a7f6cf0,0xffff80003852cd10 process=0xffff800035d19fd0 user=0xffff80003c968000, vmspace=0xfffffd806c410010 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 96818 120085 42492 0 2 0 syz-executor *96818 253661 42492 0 7 0x4000000 syz-executor 51240 81107 23194 0 3 0x80 nanoslp syz-executor 51240 135837 23194 0 3 0x4000080 fsleep syz-executor 51240 396241 23194 0 3 0x4000080 fsleep syz-executor 51240 519651 23194 0 3 0x4000080 fsleep syz-executor 87010 142137 51759 0 3 0x80 nanoslp syz-executor 87010 280003 51759 0 3 0x4000080 kqpoll syz-executor 87010 335219 51759 0 3 0x4000080 fsleep syz-executor 15578 321342 11511 0 3 0x80 nanoslp syz-executor 15578 247567 11511 0 3 0x4000080 sbwait syz-executor 15578 328431 11511 0 3 0x4000080 fsleep syz-executor 15578 22615 11511 0 3 0x4000080 fsleep syz-executor 66285 400603 69272 0 3 0x80 nanoslp syz-executor 66285 47279 69272 0 3 0x4000080 kqpoll syz-executor 66285 403274 69272 0 3 0x4000080 fsleep syz-executor 1108 109321 0 0 3 0x14200 bored sosplice 51759 191351 23911 0 3 0x82 nanoslp syz-executor 42492 168112 23911 0 3 0x82 nanoslp syz-executor 11511 82796 23911 0 3 0x82 nanoslp syz-executor 23194 47167 23911 0 3 0x82 nanoslp syz-executor 69272 501539 23911 0 3 0x82 nanoslp syz-executor 9169 467494 23911 0 3 0x82 nanoslp syz-executor 38067 333239 23911 0 2 0x2 syz-executor 13419 374038 23911 0 2 0x2 syz-executor 23911 18842 71256 0 3 0x82 kqread syz-executor 71256 90788 5018 0 3 0x10008a sigsusp ksh 5018 110953 22109 0 3 0x98 kqread sshd-session 22109 33696 1827 0 3 0x92 kqread sshd-session 48234 511475 1 0 3 0x100083 ttyopn getty 1827 147429 1 0 3 0x88 kqread sshd 43944 179848 76854 73 3 0x1100090 kqread syslogd 76854 28947 1 0 3 0x100082 sbwait syslogd 39008 97237 1 0 3 0x100080 kqread resolvd 95701 311743 10826 77 3 0x100092 kqread dhcpleased 74877 369187 10826 77 3 0x100092 kqread dhcpleased 10826 303569 1 0 3 0x80 kqread dhcpleased 83585 109409 0 0 3 0x14200 bored smr 26482 412929 0 0 2 0x14200 zerothread 7146 65802 0 0 3 0x14200 aiodoned aiodoned 65799 243938 0 0 3 0x14200 syncer update 66847 168760 0 0 3 0x14200 cleaner cleaner 71418 511423 0 0 3 0x14200 reaper reaper 79692 293198 0 0 3 0x14200 pgdaemon pagedaemon 70942 18808 0 0 3 0x14200 bored viomb 64754 490451 0 0 3 0x40014200 acpi0 acpi0 84659 73890 0 0 3 0x14200 bored softnet3 52777 12102 0 0 3 0x14200 bored softnet2 4866 426151 0 0 3 0x14200 bored softnet1 88913 129590 0 0 3 0x14200 bored softnet0 90303 470587 0 0 3 0x14200 bored systqmp 30031 322524 0 0 3 0x14200 bored systq 22264 430560 0 0 3 0x40014200 tmoslp softclock 25571 288234 0 0 3 0x40014200 idle0 1 310981 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10227 11373K 11719K 166960K 12723 0 pcb 17 14K 16K 166960K 223 0 rtable 205 7K 8K 166960K 448 0 pf 29 12K 16K 166960K 68 0 ifaddr 39 7K 8K 166960K 63 0 ifgroup 46 2K 2K 166960K 91 0 sysctl 4 1K 9K 166960K 12 0 counters 31 17K 18K 166960K 47 0 ioctlops 0 0K 4K 166960K 105 0 iov 0 0K 16K 166960K 134 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1469 92K 93K 166960K 2261 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 14 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 25 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 236K 166960K 782 0 sigio 0 0K 0K 166960K 6 0 proc 60 59K 116K 166960K 552 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 210 0 in_multi 87 6K 7K 166960K 120 0 ether_multi 1 0K 0K 166960K 6 0 mrt 0 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 241 1076K 1076K 166960K 241 0 exec 0 0K 1K 166960K 402 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 66 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 221 151K 165K 166960K 8349 0 UVM aobj 87 3K 5K 166960K 91 0 pinsyscall 37 74K 94K 166960K 1806 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 38 0 NDP 10 0K 2K 166960K 38 0 temp 58 8684K 8802K 166960K 23310 0 kqueue 15 22K 32K 166960K 104 0 SYN cache 2 8K 16K 166960K 3 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 124 0 121 2 0 2 2 0 8 1 rtentry 136 134 0 43 4 0 4 4 0 8 0 unpcb 144 468 0 447 6 0 6 6 0 8 4 syncache 336 5 0 5 1 0 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 736 410 0 402 10 1 9 10 0 8 8 arp 88 22 0 7 1 0 1 1 0 8 0 ipq 40 1 0 1 1 0 1 1 0 8 1 ipqe 40 3 0 3 1 0 1 1 0 8 1 inpcb 328 1098 0 1086 14 4 10 12 0 8 7 pool(inpcb): free list modified: page 0xfffffd80797ce000; item ordinal 2; addr 0xfffffd80797ce000 (p 0xfffffd80797ce000); offset 0x0=0x797ce150 ip6q 72 5 0 0 1 0 1 1 0 8 0 ip6af 40 4 0 0 1 0 1 1 0 8 0 nd6 104 31 0 5 1 0 1 1 0 8 0 pkpcb 40 8 0 8 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 8 0 8 1 0 1 1 0 8 1 pppxif 1384 2 0 2 1 0 1 1 0 8 1 pfosfp 40 1 0 0 1 0 1 1 0 8 0 pfosfpen 112 1 0 0 1 0 1 1 0 8 0 pfrktable 1344 1 0 1 1 0 1 1 0 8 1 pfrule 1344 4 0 3 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 559 0 133 31 0 31 31 0 8 2 art_table 32 560 0 133 4 0 4 4 0 8 0 art_node 16 131 0 53 1 0 1 1 0 8 0 sysvmsgpl 40 11 0 4 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 22 0 12 1 0 1 1 0 8 0 shmpl 112 88 0 4 3 0 3 3 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 2700 0 1204 95 0 95 95 0 8 0 ffsino 248 2700 0 1204 95 0 95 95 0 8 0 nchpl 144 3793 0 2112 63 0 63 63 0 8 0 rtmask 32 1 0 1 1 0 1 1 0 8 1 uvmvnodes 80 3474 0 0 71 0 71 71 0 8 0 vnodes 216 3474 0 0 193 0 193 193 0 8 0 namei 1024 12676 0 12675 2 0 2 2 0 8 1 kstatmem 264 44 0 24 2 0 2 2 0 8 0 scsiplug 72 7 0 7 1 0 1 1 0 8 1 scxspl 216 13167 0 13167 2 0 2 2 1 8 2 plimitpl 152 105 0 88 1 0 1 1 0 8 0 sigapl 424 1071 0 1026 8 0 8 8 0 8 2 knotepl 120 27106 0 27059 10 0 10 10 0 8 7 kqueuepl 184 258 0 245 4 0 4 4 0 8 3 pipepl 296 214 0 187 5 0 5 5 0 8 2 fdescpl 440 1034 0 1006 5 0 5 5 0 8 1 filepl 120 6815 0 6591 13 0 13 13 0 8 2 lockfpl 104 426 0 423 2 0 2 2 0 8 1 lockfspl 48 201 0 198 1 0 1 1 0 8 0 sessionpl 144 22 0 14 1 0 1 1 0 8 0 pgrppl 48 43 0 27 1 0 1 1 0 8 0 ucredpl 104 895 0 883 1 0 1 1 0 8 0 zombiepl 144 1027 0 1026 1 0 1 1 0 8 0 processpl 1160 1071 0 1026 5 0 5 5 0 8 0 procpl 656 1982 0 1926 8 0 8 8 0 8 1 sosppl 168 1 0 1 1 0 1 1 0 8 1 sockpl 528 1715 0 1678 14 0 14 14 0 8 10 mcl64k 65536 8 0 8 1 0 1 1 0 8 1 mcl9k 9216 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 5 0 5 1 0 1 1 0 8 1 mcl4k 4096 3243 0 3193 14 0 14 14 0 8 7 mcl2k 2048 787 0 777 2 0 2 2 0 8 0 mtagpl 96 54 0 15 2 0 2 2 0 8 0 mbufpl 256 11171 0 10952 33 11 22 33 0 8 6 bufpl 280 4211 0 122 293 0 293 293 0 8 0 anonpl 24 168254 0 165100 45 0 45 45 0 187 15 amapchunkpl 152 27531 0 27076 29 0 29 29 0 158 6 amappl16 200 2836 0 2804 19 8 11 15 0 8 8 amappl15 192 4 0 4 1 0 1 1 0 8 1 amappl14 184 106 0 96 1 0 1 1 0 8 0 amappl13 176 4 0 4 1 0 1 1 0 8 1 amappl12 168 1647 0 1619 3 0 3 3 0 8 1 amappl11 160 45 0 35 1 0 1 1 0 8 0 amappl10 152 52 0 52 1 0 1 1 0 8 1 amappl9 144 268 0 268 1 0 1 1 0 8 1 amappl8 136 20 0 19 1 0 1 1 0 8 0 amappl7 128 98 0 88 1 0 1 1 0 8 0 amappl6 120 176 0 172 1 0 1 1 0 8 0 amappl5 112 138 0 131 1 0 1 1 0 8 0 amappl4 104 296 0 279 1 0 1 1 0 8 0 amappl3 96 5394 0 5291 4 0 4 4 0 8 1 amappl2 88 623 0 566 2 0 2 2 0 8 0 amappl1 80 10702 0 10152 14 0 14 14 0 8 1 amappl 88 7564 0 7407 5 0 5 5 0 92 0 dma65536 65536 1 0 1 1 0 1 1 0 8 1 dma4096 4096 1 0 1 1 0 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 0 1 1 0 8 1 dma128 128 255 0 255 1 0 1 1 0 8 1 dma64 64 6 0 6 1 0 1 1 0 8 1 dma32 32 7 0 7 1 0 1 1 0 8 1 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 90 0 4 2 0 2 2 0 8 0 uaddrrnd 24 1034 0 1006 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1034 0 1006 1 0 1 1 0 8 0 vmmpekpl 168 9210 0 9179 3 0 3 3 0 8 0 vmmpepl 168 69314 0 67492 96 0 96 96 0 357 9 vmsppl 360 1033 0 1006 4 0 4 4 0 8 1 rwobjpl 32 22792 0 18385 36 0 36 36 0 8 0 pdppl 4096 2074 0 2012 94 28 66 80 0 8 4 pvpl 32 447426 0 438913 117 0 117 117 0 265 31 pmappl 216 1033 0 1006 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 292 0 40 8 0 8 8 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace in_pcb_iterator(ffffffff8396b598,fffffd80797ce148,ffff80003c96cd68) at in_pcb_iterator+0x12b sys/netinet/in_pcb.c:699 sysctl_file(ffff80003c96d068,4,0,ffff80003c96d098,ffff80003852c550) at sysctl_file+0xc57 sys/kern/kern_sysctl.c:-1 kern_sysctl(ffff80003c96d064,5,0,ffff80003c96d098,0,0,c820bda7ec84c93) at kern_sysctl+0x167 sys/kern/kern_sysctl.c:526 sys_sysctl(ffff80003852c550,ffff80003c96d1d0,ffff80003c96d120) at sys_sysctl+0x3f2 sys/kern/kern_sysctl.c:-1 syscall(ffff80003c96d1d0) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c96d1d0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6ff70ac1970, count: -6 ddb> machine ddbcpu 1 No such command ddb> trace in_pcb_iterator(ffffffff8396b598,fffffd80797ce148,ffff80003c96cd68) at in_pcb_iterator+0x12b sys/netinet/in_pcb.c:699 sysctl_file(ffff80003c96d068,4,0,ffff80003c96d098,ffff80003852c550) at sysctl_file+0xc57 sys/kern/kern_sysctl.c:-1 kern_sysctl(ffff80003c96d064,5,0,ffff80003c96d098,0,0,c820bda7ec84c93) at kern_sysctl+0x167 sys/kern/kern_sysctl.c:526 sys_sysctl(ffff80003852c550,ffff80003c96d1d0,ffff80003c96d120) at sys_sysctl+0x3f2 sys/kern/kern_sysctl.c:-1 syscall(ffff80003c96d1d0) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c96d1d0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6ff70ac1970, count: -6