uvm_fault(0xfffffd803f013d68, 0x100000008, 0, 2) -> e kernel: page fault trap, code=0 Stopped at arp_rtrequest+0x15f: movq %rcx,0x8(%r15) ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic kernel page fault uvm_fault(0xfffffd803f013d68, 0x100000008, 0, 2) -> e arp_rtrequest() at arp_rtrequest+0x15f sys/netinet/if_ether.c:201 end trace frame: 0xffff80001493c560, count: 0 ddb> trace arp_rtrequest() at arp_rtrequest+0x15f sys/netinet/if_ether.c:201 rtm_output(ffff800000a01e00,ffff80001493c618,ffff80001493c570,40,0) at rtm_output+0xbf4 sys/net/rtsock.c:1040 route_output(fffffd80355de000,fffffd8036403008,0,0) at route_output+0x7d7 sys/net/rtsock.c:814 route_usrreq(fffffd8036403008,9,fffffd80355de000,0,0,ffff800016be1530) at route_usrreq+0x363 sys/net/rtsock.c:271 sosend(fffffd8036403008,0,ffff80001493c810,0,0,80) at sosend+0x660 sys/kern/uipc_socket.c:513 sendit(ffff800016be1530,3,ffff80001493c8f0,0,ffff80001493ca00) at sendit+0x53c sys/kern/uipc_syscalls.c:662 sys_sendto(ffff800016be1530,ffff80001493c998,ffff80001493ca00) at sys_sendto+0x80 sys/kern/uipc_syscalls.c:527 syscall(ffff80001493ca70) at syscall+0x511 Xsyscall(6,0,ffffffffffffffd8,0,6,da9b9d1a010) at Xsyscall+0x128 end of kernel end trace frame: 0xdac040388e0, count: -9 ddb> show registers rdi 0xffffffff81ed4057 arp_rtrequest+0x157 rsi 0x193 rbp 0xffff80001493c4c0 rbx 0xffff800000025630 rdx 0x194 rcx 0xdeafbeaddeafbead rax 0xffff800000025638 r8 0x40 r9 0x5 r10 0xffff80000098ffc0 r11 0x20cdbd36aa211c3c r12 0xffff800000172290 r13 0x2 r14 0xfffffd8039bb1698 r15 0x100000000 rip 0xffffffff81ed405f arp_rtrequest+0x15f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80001493c440 ss 0x10 arp_rtrequest+0x15f: movq %rcx,0x8(%r15) ddb> show proc PROC (syz-executor.1) pid=498705 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800016be0e28,0xffffffff822ca0f0 process=0xffff8000ffff6d30 user=0xffff800014937000, vmspace=0xfffffd803f013d68 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 14609 350724 63958 0 2 0 syz-executor.1 *14609 498705 63958 0 7 0x4000000 syz-executor.1 35296 268467 71021 0 3 0x80 nanosleep syz-executor.0 35296 79967 71021 0 3 0x4000080 select syz-executor.0 35296 279476 71021 0 3 0x4000080 fsleep syz-executor.0 39080 481256 1 0 3 0x100083 ttyopn getty 33245 386131 0 0 3 0x14200 bored sosplice 71021 109456 52514 0 3 0x82 nanosleep syz-executor.0 63958 448830 52514 0 3 0x82 nanosleep syz-executor.1 52514 116666 5139 0 3 0x82 kqread syz-fuzzer 52514 454062 5139 0 3 0x4000082 thrsleep syz-fuzzer 52514 510302 5139 0 3 0x4000082 thrsleep syz-fuzzer 52514 100127 5139 0 3 0x4000082 thrsleep syz-fuzzer 52514 2420 5139 0 3 0x4000082 thrsleep syz-fuzzer 52514 57772 5139 0 3 0x4000082 thrsleep syz-fuzzer 52514 430159 5139 0 3 0x4000082 thrsleep syz-fuzzer 52514 197236 5139 0 3 0x4000082 thrsleep syz-fuzzer 5139 39819 56269 0 3 0x10008a pause ksh 56269 125252 84685 0 3 0x92 select sshd 84685 440022 1 0 3 0x80 select sshd 25115 467903 35122 73 2 0x100090 syslogd 35122 122884 1 0 3 0x100082 netio syslogd 25466 190115 1 77 3 0x100090 poll dhclient 23758 180649 1 0 3 0x80 poll dhclient 30457 15286 0 0 2 0x14200 zerothread 99295 18269 0 0 3 0x14200 aiodoned aiodoned 52606 14831 0 0 3 0x14200 syncer update 72386 277945 0 0 3 0x14200 cleaner cleaner 39457 294385 0 0 3 0x14200 reaper reaper 6689 339543 0 0 3 0x14200 pgdaemon pagedaemon 15714 261815 0 0 3 0x14200 bored crynlk 26352 87739 0 0 3 0x14200 bored crypto 9294 21797 0 0 3 0x40014200 acpi0 acpi0 81990 357964 0 0 3 0x14200 bored softnet 76248 12247 0 0 3 0x14200 bored systqmp 2034 89415 0 0 3 0x14200 bored systq 59687 138901 0 0 3 0x40014200 bored softclock 20885 199183 0 0 3 0x40014200 idle0 27600 331497 0 0 3 0x14200 bored smr 1 57568 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 9516 6354K 6842K 78643K 16797 0 0 pcb 24 9K 10K 78643K 2552 0 0 rtable 128 5K 5K 78643K 1561 0 0 ifaddr 59 16K 18K 78643K 554 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 156 0 0 iov 0 0K 28K 78643K 1005 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1207 76K 76K 78643K 5282 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 58 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 12 1K 1K 78643K 172 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12537 0 0 file desc 6 17K 25K 78643K 8719 0 0 sigio 0 0K 0K 78643K 112 0 0 proc 41 30K 46K 78643K 645 0 0 subproc 32 2K 2K 78643K 36 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 469 0 0 in_multi 33 2K 2K 78643K 176 0 0 ether_multi 1 0K 0K 78643K 27 0 0 mrt 0 0K 0K 78643K 15 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 84 371K 371K 78643K 84 0 0 exec 0 0K 1K 78643K 476 0 0 pfkey data 0 0K 0K 78643K 2 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 96 21K 22K 78643K 20977 0 0 UVM aobj 128 4K 4K 78643K 162 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 102 0 0 NDP 12 0K 0K 78643K 147 0 0 temp 182 2715K 2787K 78643K 24178 0 0 kqueue 0 0K 0K 78643K 19 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 0 1 0 1 1 0 8 0 inpcbpl 280 1781 0 1774 1 0 1 1 0 8 0 plimitpl 152 126 0 119 1 0 1 1 0 8 0 rtentry 112 83 0 35 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 5 0 5 2 2 0 1 0 8 0 tcpcb 544 644 0 640 1 0 1 1 0 8 0 nd6 48 6 0 0 1 0 1 1 0 8 0 swfcl 56 1 0 0 1 0 1 1 0 8 0 ppxss 1128 104 0 104 17 17 0 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 200 0 0 13 0 13 13 0 8 0 art_table 32 202 0 0 2 0 2 2 0 8 0 art_node 16 48 0 6 1 0 1 1 0 8 0 sysvmsgpl 40 9 0 4 1 0 1 1 0 8 0 semapl 112 170 0 160 1 0 1 1 0 8 0 shmpl 112 160 0 34 5 1 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 15816 0 14363 47 0 47 47 0 8 0 ffsino 240 15816 0 14363 86 0 86 86 0 8 0 nchpl 144 27555 0 25933 61 0 61 61 0 8 0 uvmvnodes 72 5926 0 0 108 0 108 108 0 8 0 vnodes 200 5926 0 0 312 0 312 312 0 8 0 namei 1024 73261 0 73261 2 1 1 1 0 8 1 scsiplug 64 16 0 16 5 5 0 1 0 8 0 scxspl 192 125348 0 125348 26 24 2 5 0 8 2 sigapl 432 8891 0 8877 2 0 2 2 0 8 0 futexpl 56 75657 0 75656 1 0 1 1 0 8 0 knotepl 112 793 0 774 1 0 1 1 0 8 0 kqueuepl 104 855 0 853 1 0 1 1 0 8 0 pipepl 112 3068 0 3049 7 6 1 2 0 8 0 fdescpl 424 8892 0 8877 2 0 2 2 0 8 0 filepl 120 37579 0 37484 8 4 4 5 0 8 1 lockfpl 104 4325 0 4325 10 10 0 1 0 8 0 lockfspl 48 1696 0 1696 10 10 0 1 0 8 0 sessionpl 112 18 0 8 1 0 1 1 0 8 0 pgrppl 48 53 0 43 1 0 1 1 0 8 0 ucredpl 96 11651 0 11644 1 0 1 1 0 8 0 zombiepl 144 8877 0 8877 2 1 1 1 0 8 1 processpl 840 8907 0 8877 4 0 4 4 0 8 0 procpl 600 19770 0 19730 4 0 4 4 0 8 0 sosppl 128 65 0 65 12 11 1 1 0 8 1 sockpl 384 4155 0 4137 13 10 3 4 0 8 1 mcl64k 65536 406 0 405 35 34 1 29 0 8 0 mcl16k 16384 26 0 26 8 8 0 1 0 8 0 mcl12k 12288 110 0 110 13 12 1 1 0 8 1 mcl9k 9216 132 0 132 17 16 1 1 0 8 1 mcl8k 8192 643 0 643 15 14 1 1 0 8 1 mcl4k 4096 180 0 180 17 16 1 1 0 8 1 mcl2k2 2112 24 0 24 8 7 1 1 0 8 1 mcl2k 2048 30997 0 30963 29 23 6 9 0 8 1 mtagpl 80 12 0 12 2 2 0 1 0 8 0 mbufpl 256 118276 0 118148 40 30 10 18 0 8 0 bufpl 256 44365 0 39571 300 0 300 300 0 8 0 anonpl 16 758302 0 753824 156 125 31 35 0 62 12 amapchunkpl 152 33940 0 33858 31 27 4 8 0 158 0 amappl16 192 49444 0 49237 135 119 16 23 0 8 5 amappl14 176 34 0 33 2 1 1 1 0 8 0 amappl13 168 3 0 2 1 0 1 1 0 8 0 amappl12 160 8 0 5 2 1 1 1 0 8 0 amappl11 152 8743 0 8724 1 0 1 1 0 8 0 amappl10 144 61 0 59 1 0 1 1 0 8 0 amappl9 136 207 0 203 1 0 1 1 0 8 0 amappl8 128 146 0 121 1 0 1 1 0 8 0 amappl7 120 29 0 26 1 0 1 1 0 8 0 amappl6 112 8742 0 8732 1 0 1 1 0 8 0 amappl5 104 867 0 857 1 0 1 1 0 8 0 amappl4 96 9014 0 8991 1 0 1 1 0 8 0 amappl3 88 417 0 407 1 0 1 1 0 8 0 amappl2 80 70926 0 70853 4 2 2 3 0 8 0 amappl1 72 155173 0 154734 26 17 9 19 0 8 0 amappl 80 20063 0 20029 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 dma64 64 259 0 259 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 64 161 0 34 3 0 3 3 0 8 0 uaddrrnd 24 8892 0 8877 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 8892 0 8877 1 0 1 1 0 8 0 vmmpekpl 168 56768 0 56744 2 0 2 2 0 8 0 vmmpepl 168 882388 0 881101 184 125 59 73 0 357 3 vmsppl 264 8891 0 8877 2 1 1 2 0 8 0 pdppl 4096 17790 0 17754 6 1 5 6 0 8 0 pvpl 32 2080614 0 2072935 344 250 94 102 0 265 32 pmappl 200 8891 0 8877 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 559 0 129 14 0 14 14 0 8 0