uvm_fault(0xfffffd807effd708, 0x100000008, 0, 2) -> e kernel: page fault trap, code=0 Stopped at arp_rtrequest+0x15f: movq %rcx,0x8(%r15) ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xfffffd807effd708, 0x100000008, 0, 2) -> e arp_rtrequest() at arp_rtrequest+0x15f sys/netinet/if_ether.c:201 end trace frame: 0xffff800020b6cd80, count: 0 ddb{0}> trace arp_rtrequest() at arp_rtrequest+0x15f sys/netinet/if_ether.c:201 rtm_output(ffff8000009e7a00,ffff800020b6ce40,ffff800020b6cd90,40,0) at rtm_output+0xbf4 sys/net/rtsock.c:1040 route_output(fffffd8068b9a500,fffffd806f6f2900,0,0) at route_output+0x7d2 sys/net/rtsock.c:814 route_usrreq(fffffd806f6f2900,9,fffffd8068b9a500,0,0,ffff800020b39530) at route_usrreq+0x363 sys/net/rtsock.c:271 sosend(fffffd806f6f2900,0,ffff800020b6d030,0,0,0) at sosend+0x668 sys/kern/uipc_socket.c:513 sendit(ffff800020b39530,3,ffff800020b6d110,0,ffff800020b6d220) at sendit+0x52c sys/kern/uipc_syscalls.c:662 sys_sendto(ffff800020b39530,ffff800020b6d1b8,ffff800020b6d220) at sys_sendto+0x80 sys/kern/uipc_syscalls.c:527 syscall(ffff800020b6d290) at syscall+0x552 mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(ffff800020b6d290) at syscall+0x552 sys/arch/amd64/amd64/trap.c:574 Xsyscall(6,0,ffffffffffffffd8,0,6,2860488e010) at Xsyscall+0x128 end of kernel end trace frame: 0x28855901710, count: -9 ddb{0}> show registers rdi 0xffffffff81c4e297 arp_rtrequest+0x157 rsi 0x33e rbp 0xffff800020b6cce0 rbx 0xffff80000005b490 rdx 0x33f rcx 0xdeaf4152deaf4152 rax 0xffff80000005b498 r8 0xffffffff81c4e25f arp_rtrequest+0x11f r9 0x5 r10 0x11 r11 0xc68c5f02fa63fd7f r12 0xffff800000173290 r13 0x2 r14 0xfffffd8066021318 r15 0x100000000 rip 0xffffffff81c4e29f arp_rtrequest+0x15f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020b6cc60 ss 0x10 arp_rtrequest+0x15f: movq %rcx,0x8(%r15) ddb{0}> show proc PROC (syz-executor.1) pid=400780 stat=onproc flags process=0 proc=4000000 pri=79, usrpri=79, nice=20 forw=0xffffffffffffffff, list=0xffff800020b384c8,0xffffffff8236a010 process=0xffff800020b8c9f0 user=0xffff800020b68000, vmspace=0xfffffd807effd708 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 61180 350149 9043 0 2 0 syz-executor.1 *61180 400780 9043 0 7 0x4000000 syz-executor.1 6525 274039 1 0 3 0x100083 ttyin getty 53455 104583 0 0 3 0x14200 bored sosplice 9043 360059 28257 0 3 0x82 nanosleep syz-executor.1 55189 272333 28257 0 7 0x482 syz-executor.0 28257 455767 53442 0 3 0x82 thrsleep syz-fuzzer 28257 286963 53442 0 3 0x4000082 thrsleep syz-fuzzer 28257 106076 53442 0 3 0x4000082 thrsleep syz-fuzzer 28257 505627 53442 0 3 0x4000082 thrsleep syz-fuzzer 28257 107050 53442 0 3 0x4000082 thrsleep syz-fuzzer 28257 118678 53442 0 3 0x4000082 thrsleep syz-fuzzer 28257 206343 53442 0 3 0x4000082 thrsleep syz-fuzzer 28257 146046 53442 0 3 0x4000082 kqread syz-fuzzer 28257 197217 53442 0 3 0x4000082 thrsleep syz-fuzzer 28257 514941 53442 0 3 0x4000082 thrsleep syz-fuzzer 53442 187439 92042 0 3 0x10008a pause ksh 92042 153734 52851 0 3 0x92 select sshd 52851 283689 1 0 3 0x80 select sshd 57515 274043 41270 74 3 0x100092 bpf pflogd 41270 41724 1 0 3 0x80 netio pflogd 73084 114141 63199 73 2 0x100090 syslogd 63199 68712 1 0 3 0x100082 netio syslogd 35411 169771 1 77 3 0x100090 poll dhclient 70964 449640 1 0 3 0x80 poll dhclient 21977 431828 0 0 3 0x14200 pgzero zerothread 57176 504257 0 0 3 0x14200 aiodoned aiodoned 53911 155898 0 0 3 0x14200 syncer update 68485 307071 0 0 3 0x14200 cleaner cleaner 19549 401602 0 0 3 0x14200 reaper reaper 92973 516837 0 0 3 0x14200 pgdaemon pagedaemon 76293 169895 0 0 3 0x14200 bored crynlk 65452 49713 0 0 3 0x14200 bored crypto 77860 28149 0 0 3 0x40014200 acpi0 acpi0 71475 513017 0 0 3 0x40014200 idle1 13024 510559 0 0 3 0x14200 bored softnet 56252 76168 0 0 3 0x14200 bored systqmp 6032 382157 0 0 3 0x14200 bored systq 628 144504 0 0 3 0x40014200 bored softclock 84695 377705 0 0 3 0x40014200 idle0 67930 74696 0 0 3 0x14200 bored smr 1 455417 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 61180 (syz-executor.1) thread 0xffff800020b39530 (400780) exclusive rwlock netlock r = 0 (0xffffffff822134c8) #0 witness_lock+0x52e sys/kern/subr_witness.c:1161 #1 rtm_output+0xb86 sys/net/rtsock.c:1031 #2 route_output+0x7d2 sys/net/rtsock.c:814 #3 route_usrreq+0x363 sys/net/rtsock.c:271 #4 sosend+0x668 sys/kern/uipc_socket.c:513 #5 sendit+0x52c sys/kern/uipc_syscalls.c:662 #6 sys_sendto+0x80 sys/kern/uipc_syscalls.c:527 #7 syscall+0x552 mi_syscall sys/sys/syscall_mi.h:99 [inline] #7 syscall+0x552 sys/arch/amd64/amd64/trap.c:574 #8 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82396cc8) #0 witness_lock+0x52e sys/kern/subr_witness.c:1161 #1 solock+0x66 sys/kern/uipc_socket2.c:292 #2 sosend+0x52c sys/kern/uipc_socket.c:501 #3 sendit+0x52c sys/kern/uipc_syscalls.c:662 #4 sys_sendto+0x80 sys/kern/uipc_syscalls.c:527 #5 syscall+0x552 mi_syscall sys/sys/syscall_mi.h:99 [inline] #5 syscall+0x552 sys/arch/amd64/amd64/trap.c:574 #6 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9537 6427K 7442K 78643K 13558 0 0 pcb 26 9K 10K 78643K 2156 0 0 rtable 116 5K 5K 78643K 2017 0 0 ifaddr 65 15K 16K 78643K 414 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1490 0 0 iov 0 0K 28K 78643K 212 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1207 76K 76K 78643K 2831 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 111 0 0 VM map 2 1K 1K 78643K 2 0 0 sem 12 1K 1K 78643K 144 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12628 0 0 file desc 5 13K 25K 78643K 4382 0 0 sigio 0 0K 0K 78643K 34 0 0 proc 54 51K 91K 78643K 570 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 ip_moptions 0 0K 0K 78643K 385 0 0 in_multi 33 2K 2K 78643K 168 0 0 ether_multi 1 0K 0K 78643K 27 0 0 mrt 0 0K 0K 78643K 8 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 354 0 0 pfkey data 0 0K 4K 78643K 1 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 97 21K 31K 78643K 11640 0 0 UVM aobj 130 4K 4K 78643K 131 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 127 0 0 NDP 14 0K 0K 78643K 111 0 0 temp 192 2728K 3367K 78643K 14308 0 0 kqueue 0 0K 0K 78643K 20 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 6 0 0 1 0 1 1 0 8 0 inpcbpl 280 1187 0 1180 1 0 1 1 0 8 0 plimitpl 152 96 0 88 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtentry 112 63 0 18 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpcb 544 395 0 391 1 0 1 1 0 8 0 rttmr 72 1 0 1 1 1 0 1 0 8 0 nd6 48 6 0 0 1 0 1 1 0 8 0 ppxss 1128 80 0 80 8 8 0 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 42 0 39 1 0 1 1 0 8 0 pfstkey 112 42 0 39 1 0 1 1 0 8 0 pfstate 328 42 0 39 3 1 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 256 224 0 30 15 2 13 14 0 8 0 art_table 32 225 0 30 2 0 2 2 0 8 0 art_node 16 46 0 5 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 5 1 1 0 1 0 8 0 semupl 112 4 0 4 1 1 0 1 0 8 0 semapl 112 137 0 127 1 0 1 1 0 8 0 shmpl 112 129 0 1 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 7839 0 6403 47 0 47 47 0 8 0 ffsino 272 7839 0 6403 96 0 96 96 0 8 0 nchpl 144 13162 0 11521 62 0 62 62 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 33608 0 33608 2 1 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 scsiplug 64 3 0 3 2 2 0 1 0 8 0 scxspl 192 43030 0 43030 16 15 1 7 0 8 1 sigapl 432 4584 0 4569 3 1 2 3 0 8 0 futexpl 56 23100 0 23100 2 1 1 1 0 8 1 knotepl 112 482 0 463 1 0 1 1 0 8 0 kqueuepl 104 470 0 468 1 0 1 1 0 8 0 pipepl 112 856 0 837 3 2 1 2 0 8 0 fdescpl 488 4585 0 4569 3 0 3 3 0 8 0 filepl 152 15748 0 15648 11 7 4 6 0 8 0 lockfpl 104 636 0 636 11 11 0 1 0 8 0 lockfspl 48 244 0 244 11 11 0 1 0 8 0 sessionpl 112 20 0 9 1 0 1 1 0 8 0 pgrppl 48 27 0 16 1 0 1 1 0 8 0 ucredpl 96 3256 0 3247 1 0 1 1 0 8 0 zombiepl 144 4569 0 4568 2 1 1 1 0 8 0 processpl 840 4601 0 4568 4 0 4 4 0 8 0 procpl 600 10768 0 10725 4 0 4 4 0 8 0 srpgc 64 1 0 1 1 1 0 1 0 8 0 sosppl 128 45 0 45 8 8 0 1 0 8 0 sockpl 384 3169 0 3149 7 4 3 3 0 8 1 mcl64k 65536 268 0 0 34 8 26 34 0 8 1 mcl12k 12288 7 0 0 1 0 1 1 0 8 0 mcl9k 9216 16 0 0 2 0 2 2 0 8 0 mcl8k 8192 12 0 0 2 0 2 2 0 8 0 mcl4k 4096 15 0 0 2 0 2 2 0 8 0 mcl2k2 2112 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 209 0 0 14 1 13 14 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 455 0 0 20 0 20 20 0 8 0 bufpl 256 15406 0 8398 439 0 439 439 0 8 0 anonpl 16 364686 0 359604 93 71 22 51 0 125 0 amapchunkpl 152 19058 0 18969 31 27 4 11 0 158 0 amappl16 192 19978 0 19748 71 59 12 34 0 8 0 amappl15 184 4355 0 4353 1 0 1 1 0 8 0 amappl14 176 2265 0 2261 1 0 1 1 0 8 0 amappl12 160 7 0 7 1 1 0 1 0 8 0 amappl11 152 57 0 39 1 0 1 1 0 8 0 amappl10 144 84 0 77 1 0 1 1 0 8 0 amappl9 136 593 0 590 1 0 1 1 0 8 0 amappl8 128 156 0 133 1 0 1 1 0 8 0 amappl7 120 38 0 32 1 0 1 1 0 8 0 amappl6 112 65 0 55 1 0 1 1 0 8 0 amappl5 104 122 0 108 1 0 1 1 0 8 0 amappl4 96 4697 0 4669 1 0 1 1 0 8 0 amappl3 88 225 0 215 1 0 1 1 0 8 0 amappl2 80 39615 0 39544 3 1 2 3 0 8 0 amappl1 72 89741 0 89306 25 15 10 20 0 8 0 amappl 80 11033 0 10997 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 64 130 0 1 3 0 3 3 0 8 0 uaddrrnd 24 4585 0 4569 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 4585 0 4569 1 0 1 1 0 8 0 vmmpekpl 168 26144 0 26112 2 0 2 2 0 8 0 vmmpepl 168 455128 0 453848 137 76 61 80 0 357 3 vmsppl 360 4584 0 4569 2 0 2 2 0 8 0 pdppl 4096 9178 0 9138 6 0 6 6 0 8 0 pvpl 32 1061852 0 1053548 237 167 70 132 0 265 0 pmappl 232 4584 0 4569 2 1 1 2 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 639 0 15 19 0 19 19 0 8 0