uvm_fault(0xffffffff821fc060, 0xffff800003d82002, 0, 1) -> e kernel: page fault trap, code=0 Stopped at rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic kernel page fault uvm_fault(0xffffffff821fc060, 0xffff800003d82002, 0, 1) -> e rtable_satoplen(21,ffff800003d81f59) at rtable_satoplen+0x150 sys/net/rtable.c:888 end trace frame: 0xffff8000149d36f0, count: 0 ddb> trace rtable_satoplen(21,ffff800003d81f59) at rtable_satoplen+0x150 sys/net/rtable.c:888 rtable_lookup(0,ffff800003d81f09,ffff800003d81f59,ffff800003d81f11,21) at rtable_lookup+0xed sys/net/rtable.c:391 rtm_output(ffff800003d81f00,ffff8000149d37e0,ffff8000149d37e8,21,0) at rtm_output+0x10c sys/net/rtsock.c:1122 route_output(fffffd8036d7a300,fffffd803700ba80,0,0) at route_output+0x78b sys/net/rtsock.c:806 route_usrreq(fffffd803700ba80,9,fffffd8036d7a300,0,0,ffff8000fffef788) at route_usrreq+0x35d sys/net/rtsock.c:271 sosend(fffffd803700ba80,0,ffff8000149d3aa8,0,0,0) at sosend+0x6e3 sys/kern/uipc_socket.c:513 sendit(ffff8000fffef788,4,ffff8000149d3b68,0,ffff8000149d3c30) at sendit+0x58f sys/kern/uipc_syscalls.c:662 sys_sendto(ffff8000fffef788,ffff8000149d3c48,ffff8000149d3c30) at sys_sendto+0x92 syscall(ffff8000149d3ce0) at syscall+0x541 Xsyscall(6,0,ffffffffffffffd8,0,6,b357a4770d8) at Xsyscall+0x128 end of kernel end trace frame: 0xb37c5ab8a80, count: -10 ddb> show registers rdi 0 rsi 0xaa rbp 0xffff8000149d3650 rbx 0xffffffffffffff5a rdx 0xffff800003d81f5d rcx 0xffff800003d82003 rax 0xffff800003d82003 r8 0x21 r9 0x1 r10 0xffff800003f3cd40 r11 0x22b7445ed6b7dd27 r12 0 r13 0xffff800003d82003 r14 0xffffffff82150d78 mplsdomain r15 0x4 rip 0xffffffff816bd740 rtable_satoplen+0x150 cs 0x8 rflags 0x10287 __ALIGN_SIZE+0xf287 rsp 0xffff8000149d3600 ss 0x10 rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb> show proc PROC (syz-executor.1) pid=111787 stat=onproc flags process=0 proc=4000000 pri=77, usrpri=77, nice=20 forw=0xffffffffffffffff, list=0xffff8000fffef530,0xffffffff8224ce18 process=0xffff8000ffffb3b8 user=0xffff8000149ce000, vmspace=0xfffffd803f014a50 estcpu=27, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 2018 149029 79410 0 2 0 syz-executor.1 2018 523830 79410 0 2 0x4000000 syz-executor.1 * 2018 111787 79410 0 7 0x4000000 syz-executor.1 38168 314358 75344 0 2 0x2 syz-executor.0 79410 403567 75344 0 3 0x82 nanosleep syz-executor.1 48185 178368 1 0 3 0x100083 ttyin getty 75469 129534 0 0 3 0x14200 bored sosplice 75344 467909 65416 0 3 0x82 thrsleep syz-fuzzer 75344 23408 65416 0 3 0x4000082 nanosleep syz-fuzzer 75344 508161 65416 0 3 0x4000082 thrsleep syz-fuzzer 75344 431628 65416 0 3 0x4000082 thrsleep syz-fuzzer 75344 360230 65416 0 3 0x4000082 thrsleep syz-fuzzer 75344 479197 65416 0 3 0x4000082 thrsleep syz-fuzzer 75344 115715 65416 0 3 0x4000082 thrsleep syz-fuzzer 75344 211176 65416 0 3 0x4000082 kqread syz-fuzzer 65416 204706 5784 0 3 0x10008a pause ksh 5784 13405 11743 0 3 0x92 select sshd 11743 432585 1 0 3 0x80 select sshd 65748 230325 95516 73 2 0x100090 syslogd 95516 129929 1 0 3 0x100082 netio syslogd 71388 429272 1 77 3 0x100090 poll dhclient 76999 300014 1 0 3 0x80 poll dhclient 68225 368610 0 0 3 0x14200 pgzero zerothread 66215 315313 0 0 3 0x14200 aiodoned aiodoned 65457 99138 0 0 3 0x14200 syncer update 61577 508545 0 0 3 0x14200 cleaner cleaner 34232 502192 0 0 3 0x14200 reaper reaper 77361 280482 0 0 3 0x14200 pgdaemon pagedaemon 53160 351904 0 0 3 0x14200 bored crynlk 57036 327116 0 0 3 0x14200 bored crypto 73243 455236 0 0 3 0x40014200 acpi0 acpi0 15249 69054 0 0 3 0x14200 bored softnet 57767 221357 0 0 3 0x14200 bored systqmp 62108 400864 0 0 3 0x14200 bored systq 12316 288818 0 0 3 0x40014200 bored softclock 72590 59119 0 0 3 0x40014200 idle0 38643 444683 0 0 3 0x14200 bored smr 1 402618 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 9499 6347K 6363K 78643K 11059 0 0 pcb 25 9K 11K 78643K 807 0 0 rtable 101 3K 4K 78643K 667 0 0 ifaddr 55 13K 14K 78643K 239 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 44 0 0 iov 0 0K 24K 78643K 202 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1200 75K 76K 78643K 1806 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 20 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 12 0K 0K 78643K 168 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12537 0 0 file desc 5 13K 21K 78643K 1294 0 0 sigio 0 0K 0K 78643K 25 0 0 proc 42 30K 46K 78643K 528 0 0 subproc 64 65538K 69634K 78643K 313 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 144 0 0 in_multi 33 2K 2K 78643K 140 0 0 ether_multi 1 0K 0K 78643K 10 0 0 mrt 1 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 60 265K 265K 78643K 60 0 0 exec 0 0K 1K 78643K 350 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 86 20K 30K 78643K 3864 0 0 UVM aobj 78 3K 3K 78643K 85 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 57 0 0 NDP 11 0K 0K 78643K 72 0 0 temp 162 2351K 2419K 78643K 6695 0 0 kqueue 0 0K 0K 78643K 9 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 11 0 7 1 0 1 1 0 8 0 inpcbpl 280 701 0 694 1 0 1 1 0 8 0 plimitpl 152 57 0 50 1 0 1 1 0 8 0 rtentry 112 106 0 66 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpcb 544 234 0 230 1 0 1 1 0 8 0 nd6 48 18 0 14 1 0 1 1 0 8 0 ppxss 1128 33 0 33 9 8 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 489 0 301 12 0 12 12 0 8 0 art_table 32 490 0 301 2 0 2 2 0 8 0 art_node 16 103 0 69 1 0 1 1 0 8 0 sysvmsgpl 40 20 0 5 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 164 0 154 1 0 1 1 0 8 0 shmpl 112 83 0 7 3 0 3 3 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 3596 0 2156 47 0 47 47 0 8 0 ffsino 240 3596 0 2156 85 0 85 85 0 8 0 nchpl 144 5635 0 3993 62 0 62 62 0 8 0 uvmvnodes 72 3846 0 0 70 0 70 70 0 8 0 vnodes 200 3846 0 0 203 0 203 203 0 8 0 namei 1024 17494 0 17493 2 1 1 1 0 8 0 scsiplug 64 3 0 3 2 2 0 1 0 8 0 scxspl 192 19706 0 19706 16 15 1 6 0 8 1 sigapl 432 1443 0 1430 2 0 2 2 0 8 0 futexpl 56 21441 0 21441 1 0 1 1 0 8 1 knotepl 112 441 0 414 3 2 1 2 0 8 0 kqueuepl 104 386 0 384 1 0 1 1 0 8 0 pipepl 112 936 0 917 4 3 1 2 0 8 0 fdescpl 424 1444 0 1430 2 0 2 2 0 8 0 filepl 120 9571 0 9475 5 1 4 5 0 8 1 lockfpl 104 430 0 430 2 1 1 1 0 8 1 lockfspl 32 322 0 322 2 1 1 1 0 8 1 sessionpl 112 26 0 16 1 0 1 1 0 8 0 pgrppl 48 34 0 24 1 0 1 1 0 8 0 ucredpl 96 1868 0 1861 1 0 1 1 0 8 0 zombiepl 144 1430 0 1430 2 1 1 1 0 8 1 processpl 840 1459 0 1430 4 0 4 4 0 8 0 procpl 600 3078 0 3040 4 0 4 4 0 8 0 sosppl 128 23 0 23 5 5 0 1 0 8 0 sockpl 384 1365 0 1346 4 1 3 4 0 8 1 mcl64k 65536 50 0 50 4 3 1 1 0 8 1 mcl16k 16384 3 0 3 2 1 1 1 0 8 1 mcl12k 12288 31 0 31 6 5 1 1 0 8 1 mcl9k 9216 22 0 22 6 6 0 1 0 8 0 mcl8k 8192 22 0 22 7 7 0 1 0 8 0 mcl4k 4096 83 0 83 3 2 1 1 0 8 1 mcl2k2 2112 9 0 9 6 6 0 1 0 8 0 mcl2k 2048 48496 0 48457 12 6 6 10 0 8 1 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 86147 0 86047 16 8 8 10 0 8 0 bufpl 256 11128 0 4504 415 0 415 415 0 8 0 anonpl 16 172166 0 164032 100 52 48 53 0 62 9 amapchunkpl 152 6570 0 6479 24 15 9 14 0 158 4 amappl16 192 7853 0 7382 104 71 33 36 0 8 8 amappl15 184 716 0 713 1 0 1 1 0 8 0 amappl14 176 250 0 243 1 0 1 1 0 8 0 amappl13 168 165 0 160 1 0 1 1 0 8 0 amappl12 160 141 0 141 3 3 0 1 0 8 0 amappl11 152 829 0 818 1 0 1 1 0 8 0 amappl10 144 62 0 60 1 0 1 1 0 8 0 amappl9 136 950 0 945 1 0 1 1 0 8 0 amappl8 128 153 0 135 1 0 1 1 0 8 0 amappl7 120 119 0 114 1 0 1 1 0 8 0 amappl6 112 268 0 260 1 0 1 1 0 8 0 amappl5 104 526 0 514 1 0 1 1 0 8 0 amappl4 96 290 0 268 2 1 1 2 0 8 0 amappl3 88 179 0 174 1 0 1 1 0 8 0 amappl2 80 12788 0 12734 2 0 2 2 0 8 0 amappl1 72 35032 0 34613 26 17 9 19 0 8 0 amappl 72 3346 0 3312 1 0 1 1 0 75 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 84 0 7 2 0 2 2 0 8 0 uaddrrnd 24 1444 0 1430 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1444 0 1430 1 0 1 1 0 8 0 vmmpekpl 168 13847 0 13824 2 0 2 2 0 8 0 vmmpepl 168 158865 0 157458 142 60 82 85 0 357 14 vmsppl 264 1443 0 1430 3 2 1 2 0 8 0 pdppl 4096 2894 0 2860 5 0 5 5 0 8 0 pvpl 32 549312 0 537580 311 97 214 219 0 265 114 pmappl 192 1443 0 1430 1 0 1 1 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 570 0 30 16 0 16 16 0 8 0