login: kernel: protection fault trap, code=0 Stopped at in_pcb_iterator+0x13b: movq %rcx,0x8(%rdx) ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace in_pcb_iterator(ffffffff83a21fe0,fffffd806f4c3148,ffff80003ac07048) at in_pcb_iterator+0x13b sys/netinet/in_pcb.c:699 sysctl_file(ffff80003ac07348,4,0,ffff80003ac07378,ffff80003c4a2d08) at sysctl_file+0xcb9 sys/kern/kern_sysctl.c:-1 kern_sysctl(ffff80003ac07344,5,0,ffff80003ac07378,0,0,4940cb46508e2be2) at kern_sysctl+0x167 sys/kern/kern_sysctl.c:526 sys_sysctl(ffff80003c4a2d08,ffff80003ac074b0,ffff80003ac07400) at sys_sysctl+0x3f2 sys/kern/kern_sysctl.c:-1 syscall(ffff80003ac074b0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003ac074b0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6a9becaa0f0, count: -6 ddb{0}> show registers rdi 0xffff80002b3d4000 rsi 0x21b rbp 0xffff80003ac07020 rbx 0 rdx 0xfcc23c0228444726 rcx 0xffff80003ac07050 rax 0xfffffd806f4c3528 r8 0xffffffff r9 0 r10 0x9aa51e225547de31 r11 0x6a116af1327e40a1 r12 0xfffffd806f4c3148 r13 0xfffffd806f4c3520 r14 0xffffffff83a22018 tcbtable+0x38 r15 0xffff80003ac07048 rip 0xffffffff815d510b in_pcb_iterator+0x13b cs 0x8 rflags 0x10286 __ALIGN_SIZE+0xf286 rsp 0xffff80003ac06fb0 ss 0x10 in_pcb_iterator+0x13b: movq %rcx,0x8(%rdx) ddb{0}> show proc PROC (syz-executor) tid=328024 pid=9260 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=86, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c41acf8,0xffff80003c4a3238 process=0xffff80003c4a4eb0 user=0xffff80003ac02000, vmspace=0xfffffd806b7c9998 estcpu=36, cpticks=3, pctcpu=0.0, user=0, sys=3, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 44947 145259 99800 0 2 0 syz-executor 67817 434485 76894 0 7 0 syz-executor 67817 465065 76894 0 2 0x4000000 syz-executor 9260 158434 45782 0 2 0 syz-executor 9260 187567 45782 0 3 0x4000080 kqsel syz-executor * 9260 328024 45782 0 7 0x4000000 syz-executor 41195 502898 7454 0 3 0x80 nanoslp syz-executor 41195 76269 7454 0 3 0x4000080 fsleep syz-executor 41195 417726 7454 0 3 0x4000080 lockf syz-executor 41195 106511 7454 0 3 0x4000080 fsleep syz-executor 41195 70113 7454 0 3 0x4000080 fsleep syz-executor 96490 83537 0 0 3 0x14200 acct acct 90866 289694 1 0 3 0x100083 ttyin getty 76894 211293 56106 0 3 0x82 nanoslp syz-executor 87141 163783 56106 0 3 0x82 nanoslp syz-executor 42506 176145 56106 0 3 0x82 nanoslp syz-executor 74842 261772 0 0 3 0x14200 bored sosplice 5949 56010 56106 0 3 0x82 wait syz-executor 7454 488077 56106 0 3 0x82 nanoslp syz-executor 50383 139790 56106 0 2 0x2 syz-executor 45782 139657 56106 0 3 0x82 nanoslp syz-executor 99800 492926 56106 0 3 0x82 nanoslp syz-executor 56106 163046 54991 0 3 0x82 kqread syz-executor 54991 71832 48978 0 3 0x10008a sigsusp ksh 48978 386391 38885 0 3 0x98 kqread sshd-session 38885 179655 51169 0 3 0x92 kqread sshd-session 51169 234729 1 0 3 0x88 kqread sshd 29301 87732 41966 74 3 0x1100092 bpf pflogd 41966 16771 1 0 3 0x80 sbwait pflogd 18813 477528 61264 73 3 0x1100090 kqread syslogd 61264 105226 1 0 3 0x100082 sbwait syslogd 53429 322645 1 0 3 0x100080 kqread resolvd 88548 157225 72205 77 3 0x100092 kqread dhcpleased 2108 494412 72205 77 3 0x100092 kqread dhcpleased 72205 504656 1 0 3 0x80 kqread dhcpleased 14627 108366 0 0 3 0x14200 bored smr 67679 352673 0 0 2 0x14200 zerothread 74685 309591 0 0 3 0x14200 aiodoned aiodoned 34073 514183 0 0 3 0x14200 syncer update 61803 279314 0 0 3 0x14200 cleaner cleaner 55137 2829 0 0 3 0x14200 reaper reaper 39475 178622 0 0 3 0x14200 pgdaemon pagedaemon 70073 16102 0 0 3 0x14200 bored viomb 94935 5545 0 0 3 0x40014200 acpi0 acpi0 11316 100552 0 0 3 0x40014200 idle1 1755 156422 0 0 3 0x14200 bored softnet3 31775 374133 0 0 3 0x14200 bored softnet2 62475 151589 0 0 3 0x14200 bored softnet1 2851 179 0 0 3 0x14200 bored softnet0 72160 296739 0 0 3 0x14200 bored systqmp 5905 61948 0 0 3 0x14200 bored systq 3584 279699 0 0 3 0x14200 tmoslp softclockmp 41784 235786 0 0 3 0x40014200 tmoslp softclock 91601 511448 0 0 3 0x40014200 idle0 1 112584 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &table->inpt_mtx r = 0 (0xffffffff83a21ff0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x1ad sys/kern/kern_lock.c:298 #2 mtx_enter+0x62 sys/kern/kern_lock.c:255 #3 sysctl_file+0xa52 sys/kern/kern_sysctl.c:-1 #4 kern_sysctl+0x167 sys/kern/kern_sysctl.c:526 #5 sys_sysctl+0x3f2 sys/kern/kern_sysctl.c:-1 #6 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #7 Xsyscall+0x128 Process 50383 (syz-executor) thread 0xffff80002a2bb208 (139790) exclusive rwlock vmmaplk r = 0 (0xfffffd806b7c9c78) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5168 #3 uvmspace_fork+0x12b sys/uvm/uvm_map.c:3738 #4 process_new+0x572 sys/kern/kern_fork.c:284 #5 fork1+0x3ea sys/kern/kern_fork.c:410 #6 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #7 Xsyscall+0x128 exclusive rwlock vmmaplk r = 0 (0xfffffd800b026a60) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5168 #3 uvmspace_fork+0x44 sys/uvm/uvm_map.c:3729 #4 process_new+0x572 sys/kern/kern_fork.c:284 #5 fork1+0x3ea sys/kern/kern_fork.c:410 #6 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #7 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10227 11075K 11887K 166960K 15553 0 pcb 17 14K 17K 166960K 714 0 rtable 175 11K 13K 166960K 807 0 pf 39 18K 82K 166960K 289 0 ifaddr 35 6K 8K 166960K 170 0 ifgroup 57 2K 3K 166960K 297 0 sysctl 4 1K 9K 166960K 31 0 counters 70 37K 38K 166960K 324 0 ioctlops 0 0K 4K 166960K 2036 0 iov 0 0K 28K 166960K 319 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1507 95K 95K 166960K 3980 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 50 0 VM map 2 1K 1K 166960K 2 0 sem 21 21K 37K 166960K 65 0 dirhash 15 2K 3K 166960K 57 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 236K 166960K 2832 0 sigio 0 0K 0K 166960K 58 0 proc 74 91K 128K 166960K 960 0 subproc 72 4K 4K 166960K 103 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 362 0 in_multi 52 3K 7K 166960K 246 0 ether_multi 1 0K 0K 166960K 17 0 mrt 0 0K 0K 166960K 35 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 133 599K 599K 166960K 133 0 exec 0 0K 1K 166960K 872 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 4 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 247 185K 193K 166960K 27459 0 UVM aobj 69 5K 5K 166960K 77 0 pinsyscall 43 86K 105K 166960K 4027 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 135 0 NDP 13 0K 1K 166960K 115 0 temp 85 8697K 8824K 166960K 116115 0 kqueue 13 20K 33K 166960K 503 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 26 0 0 1 0 1 1 0 8 0 rtpcb 120 401 0 398 5 4 1 3 0 8 0 rtentry 176 255 0 189 5 0 5 5 0 8 0 unpcb 144 1550 0 1533 11 9 2 6 0 8 1 syncache 336 15 0 15 7 6 1 1 0 8 1 tcpqe 32 2 0 2 1 1 0 1 0 8 0 tcpcb 736 1026 0 1020 24 20 4 7 0 8 3 arp 128 46 0 29 1 0 1 1 0 8 0 inpcb 328 3116 0 3108 29 23 6 12 0 8 4 pool(inpcb): free list modified: page 0xfffffd806f4c3000; item ordinal 0; addr 0xfffffd806f4c3520 (p 0xfffffd806f4c3000); offset 0x0=0x6f4c3150 nd6 144 44 0 34 1 0 1 1 0 8 0 pkpcb 40 94 0 94 6 5 1 1 0 8 1 kcovpl 48 11 0 3 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 1 0 1 0 8 0 ppxss 1192 95 0 94 4 3 1 1 0 8 0 pppxif 1504 16 0 16 5 4 1 1 0 8 1 pfstscr 40 4 0 3 2 1 1 1 0 8 0 pffrag 232 17 0 10 1 0 1 1 0 482 0 pffrnode 88 16 0 10 1 0 1 1 0 8 0 pffrent 40 33 0 26 1 0 1 1 0 8 0 pfosfp 40 1429 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1429 0 714 21 0 21 21 0 8 0 pfrktable 1344 2 0 0 1 0 1 1 0 8 0 pfanchor 1288 1 0 0 1 0 1 1 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfstitem 24 148 0 63 1 0 1 1 0 8 0 pfstkey 128 151 0 66 3 0 3 3 0 8 0 pfstate 384 150 0 66 9 0 9 9 0 8 0 pfrule 1344 33 0 21 2 1 1 2 0 8 0 rttmr 136 11 0 11 7 7 0 1 0 8 0 art_heap8 4096 4 0 1 4 1 3 3 0 8 0 art_heap4 256 1129 0 859 32 6 26 30 0 8 3 art_table 32 1133 0 860 4 0 4 4 0 8 0 art_node 16 242 0 193 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 2 1 0 1 1 0 8 0 semapl 112 55 0 36 1 0 1 1 0 8 0 shmpl 112 74 0 8 2 0 2 2 0 8 0 dirhash 1024 47 0 28 3 0 3 3 0 8 0 dino2pl 256 6635 0 5124 95 0 95 95 0 8 0 ffsino 288 6635 0 5124 109 0 109 109 0 8 0 nchpl 144 10566 0 8867 64 0 64 64 0 8 0 rtmask 32 17 0 17 5 4 1 1 0 8 1 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 37019 0 37018 5 4 1 2 0 8 0 percpumem 16 177 0 127 1 0 1 1 0 8 0 kstatmem 264 188 0 158 6 3 3 3 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 13 0 13 6 5 1 1 0 8 1 scxspl 216 33799 0 33799 14 13 1 8 1 8 1 plimitpl 152 665 0 647 1 0 1 1 0 8 0 sigapl 424 3148 0 3096 10 3 7 9 0 8 0 knotepl 120 541 0 0 17 0 17 17 0 8 0 kqueuepl 224 1003 0 993 7 6 1 4 0 8 0 pipepl 336 497 0 470 10 7 3 8 0 8 0 fdescpl 520 3104 0 3072 3 0 3 3 0 8 0 filepl 160 21016 0 20796 37 24 13 19 0 8 2 lockfpl 104 1054 0 1050 1 0 1 1 0 8 0 lockfspl 48 430 0 427 1 0 1 1 0 8 0 sessionpl 144 36 0 27 1 0 1 1 0 8 0 pgrppl 48 79 0 62 1 0 1 1 0 8 0 ucredpl 104 3421 0 3408 1 0 1 1 0 8 0 zombiepl 144 3691 0 3688 2 1 1 1 0 8 0 processpl 1240 3148 0 3096 6 0 6 6 0 8 0 procpl 656 7560 0 7501 8 1 7 8 0 8 0 srpgc 96 24 0 24 5 4 1 1 0 8 1 sosppl 168 10 0 10 4 3 1 1 0 8 1 sockpl 728 5297 0 5268 40 31 9 16 0 8 5 mcl64k 65536 5 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 118 0 0 15 0 15 15 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 33 0 0 4 0 4 4 0 8 0 mtagpl 96 38 0 0 1 0 1 1 0 8 0 mbufpl 256 1188 0 0 75 0 75 75 0 8 0 bufpl 280 8810 0 2668 440 0 440 440 0 8 0 anonpl 32 11737 0 0 96 1 95 96 0 246 0 amapchunkpl 152 94350 0 93739 73 42 31 37 0 158 3 amappl16 200 7459 0 7384 63 47 16 21 0 8 8 amappl15 192 3 0 3 1 1 0 1 0 8 0 amappl14 184 140 0 127 1 0 1 1 0 8 0 amappl13 176 34 0 34 1 1 0 1 0 8 0 amappl12 168 3803 0 3771 3 1 2 2 0 8 0 amappl11 160 70 0 56 1 0 1 1 0 8 0 amappl10 152 8 0 7 1 0 1 1 0 8 0 amappl9 144 252 0 251 3 2 1 1 0 8 0 amappl8 136 23 0 20 1 0 1 1 0 8 0 amappl7 128 122 0 109 1 0 1 1 0 8 0 amappl6 120 220 0 217 1 0 1 1 0 8 0 amappl5 112 136 0 126 1 0 1 1 0 8 0 amappl4 104 363 0 343 1 0 1 1 0 8 0 amappl3 96 19342 0 19234 5 1 4 4 0 8 0 amappl2 88 754 0 691 2 0 2 2 0 8 0 amappl1 80 21086 0 20492 17 2 15 16 0 8 0 amappl 88 26181 0 26010 5 0 5 5 0 92 0 dma16384 16384 1 0 1 1 1 0 1 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 7 0 7 2 2 0 1 0 8 0 dma128 128 258 0 258 4 4 0 1 0 8 0 dma64 64 7 0 7 2 2 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 72 76 0 8 2 0 2 2 0 8 0 uaddrrnd 24 3104 0 3072 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3104 0 3072 1 0 1 1 0 8 0 vmmpekpl 168 25163 0 25105 4 0 4 4 0 8 0 vmmpepl 168 195461 0 193393 135 31 104 106 0 357 4 vmsppl 480 3103 0 3072 8 3 5 5 0 8 0 rwobjpl 72 53510 0 46538 133 1 132 133 0 8 0 pdppl 4096 6215 0 6144 119 48 71 85 0 8 0 pvpl 32 20006 0 0 161 0 161 161 0 265 0 pmappl 256 3103 0 3072 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 513 0 97 13 0 13 13 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace in_pcb_iterator(ffffffff83a21fe0,fffffd806f4c3148,ffff80003ac07048) at in_pcb_iterator+0x13b sys/netinet/in_pcb.c:699 sysctl_file(ffff80003ac07348,4,0,ffff80003ac07378,ffff80003c4a2d08) at sysctl_file+0xcb9 sys/kern/kern_sysctl.c:-1 kern_sysctl(ffff80003ac07344,5,0,ffff80003ac07378,0,0,4940cb46508e2be2) at kern_sysctl+0x167 sys/kern/kern_sysctl.c:526 sys_sysctl(ffff80003c4a2d08,ffff80003ac074b0,ffff80003ac07400) at sys_sysctl+0x3f2 sys/kern/kern_sysctl.c:-1 syscall(ffff80003ac074b0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003ac074b0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6a9becaa0f0, count: -6 ddb{0}> machine ddbcpu 1