uvm_fault(0xffffffff82220620, 0xffff800004d40002, 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(0xffffffff82220620, 0xffff800004d40002, 0, 1) -> e rtable_satoplen(21,ffff800004d3ff59) at rtable_satoplen+0x150 sys/net/rtable.c:888 end trace frame: 0xffff8000149e5f70, count: 0 ddb> trace rtable_satoplen(21,ffff800004d3ff59) at rtable_satoplen+0x150 sys/net/rtable.c:888 rtable_lookup(0,ffff800004d3ff09,ffff800004d3ff59,ffff800004d3ff11,21) at rtable_lookup+0xed sys/net/rtable.c:391 rtm_output(ffff800004d3ff00,ffff8000149e6060,ffff8000149e6068,21,0) at rtm_output+0x1a7 sys/net/rtsock.c:952 route_output(fffffd80353f6400,fffffd8036442c08,0,0) at route_output+0x78b sys/net/rtsock.c:806 route_usrreq(fffffd8036442c08,9,fffffd80353f6400,0,0,ffff8000ffff59d8) at route_usrreq+0x35d sys/net/rtsock.c:271 sosend(fffffd8036442c08,0,ffff8000149e6328,0,0,0) at sosend+0x6e3 sys/kern/uipc_socket.c:513 sendit(ffff8000ffff59d8,3,ffff8000149e63e8,0,ffff8000149e64b0) at sendit+0x58f sys/kern/uipc_syscalls.c:662 sys_sendto(ffff8000ffff59d8,ffff8000149e64c8,ffff8000149e64b0) at sys_sendto+0x92 syscall(ffff8000149e6560) at syscall+0x541 Xsyscall(6,0,ffffffffffffffd8,0,6,abf19e31010) at Xsyscall+0x128 end of kernel end trace frame: 0xac15ada0f30, count: -10 ddb> show registers rdi 0 rsi 0xaa rbp 0xffff8000149e5ed0 rbx 0xffffffffffffff5a rdx 0xffff800004d3ff5d rcx 0xffff800004d40003 rax 0xffff800004d40003 r8 0x21 r9 0x1 r10 0xffff80000297b300 r11 0x4cc2945742f98d61 r12 0 r13 0xffff800004d40003 r14 0xffffffff82189150 mplsdomain r15 0x4 rip 0xffffffff81767da0 rtable_satoplen+0x150 cs 0x8 rflags 0x10287 __ALIGN_SIZE+0xf287 rsp 0xffff8000149e5e80 ss 0x10 rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb> show proc PROC (syz-executor.1) pid=417249 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff4bc8,0xffffffff82250208 process=0xffff800014953080 user=0xffff8000149e1000, vmspace=0xfffffd803f013738 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 70955 234717 3768 0 2 0 syz-executor.1 *70955 417249 3768 0 7 0x4000000 syz-executor.1 45463 236099 78700 0 2 0x2 syz-executor.0 3768 71820 78700 0 3 0x82 nanosleep syz-executor.1 57123 124406 0 0 3 0x14200 bored sosplice 91956 280075 1 0 3 0x100083 ttyin getty 78700 57765 44368 0 3 0x82 thrsleep syz-fuzzer 78700 64600 44368 0 2 0x4000482 syz-fuzzer 78700 251527 44368 0 3 0x4000082 thrsleep syz-fuzzer 78700 517277 44368 0 3 0x4000082 thrsleep syz-fuzzer 78700 196122 44368 0 3 0x4000082 thrsleep syz-fuzzer 78700 95672 44368 0 3 0x4000082 thrsleep syz-fuzzer 78700 196625 44368 0 3 0x4000082 thrsleep syz-fuzzer 78700 176215 44368 0 3 0x4000082 kqread syz-fuzzer 44368 160487 16559 0 3 0x10008a pause ksh 16559 199995 74509 0 3 0x92 select sshd 74509 349399 1 0 3 0x80 select sshd 17867 46795 81262 73 2 0x100090 syslogd 81262 298053 1 0 3 0x100082 netio syslogd 467 265822 1 77 3 0x100090 poll dhclient 85167 486412 1 0 3 0x80 poll dhclient 38149 157629 0 0 2 0x14200 zerothread 95730 288234 0 0 3 0x14200 aiodoned aiodoned 41376 402188 0 0 3 0x14200 syncer update 41478 518858 0 0 3 0x14200 cleaner cleaner 48702 451578 0 0 3 0x14200 reaper reaper 36243 316816 0 0 3 0x14200 pgdaemon pagedaemon 12243 299033 0 0 3 0x14200 bored crynlk 13975 102847 0 0 3 0x14200 bored crypto 1829 221512 0 0 3 0x40014200 acpi0 acpi0 6173 255832 0 0 3 0x14200 bored softnet 26338 412002 0 0 3 0x14200 bored systqmp 57466 3986 0 0 3 0x14200 bored systq 22136 16403 0 0 3 0x40014200 bored softclock 27595 305292 0 0 3 0x40014200 idle0 20157 130498 0 0 3 0x14200 bored smr 1 115733 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 9512 6351K 6367K 78643K 10829 0 0 pcb 24 9K 10K 78643K 471 0 0 rtable 104 4K 4K 78643K 387 0 0 ifaddr 60 13K 13K 78643K 114 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 20 0 0 iov 0 0K 24K 78643K 123 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1202 75K 76K 78643K 1672 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 11 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 12 0K 1K 78643K 101 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12537 0 0 file desc 5 13K 25K 78643K 685 0 0 sigio 0 0K 0K 78643K 12 0 0 proc 41 30K 54K 78643K 403 0 0 subproc 64 65538K 69634K 78643K 178 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 68 0 0 in_multi 33 2K 2K 78643K 81 0 0 ether_multi 1 0K 0K 78643K 6 0 0 mrt 0 0K 0K 78643K 3 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 66 291K 291K 78643K 66 0 0 exec 0 0K 1K 78643K 230 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 84 20K 22K 78643K 2477 0 0 UVM aobj 46 3K 3K 78643K 50 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 22 0 0 NDP 13 0K 0K 78643K 36 0 0 temp 179 2355K 2421K 78643K 4847 0 0 kqueue 0 0K 0K 78643K 2 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 7 0 3 1 0 1 1 0 8 0 inpcbpl 280 329 0 322 1 0 1 1 0 8 0 plimitpl 152 36 0 29 1 0 1 1 0 8 0 rtentry 112 72 0 32 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 25 0 25 2 2 0 1 0 8 0 tcpcb 544 108 0 104 1 0 1 1 0 8 0 nd6 48 10 0 6 1 0 1 1 0 8 0 ppxss 1128 4 0 4 3 3 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 311 0 123 12 0 12 12 0 8 0 art_table 32 312 0 123 2 0 2 2 0 8 0 art_node 16 67 0 33 1 0 1 1 0 8 0 sysvmsgpl 40 16 0 5 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 99 0 89 1 0 1 1 0 8 0 shmpl 112 48 0 4 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 2727 0 1312 46 0 46 46 0 8 0 ffsino 240 2727 0 1312 84 0 84 84 0 8 0 nchpl 144 3968 0 2336 61 0 61 61 0 8 0 uvmvnodes 72 2890 0 0 53 0 53 53 0 8 0 vnodes 200 2890 0 0 153 0 153 153 0 8 0 namei 1024 11566 0 11566 1 0 1 1 0 8 1 scxspl 192 13846 0 13846 12 11 1 7 0 8 1 sigapl 432 845 0 832 2 0 2 2 0 8 0 futexpl 56 11555 0 11555 1 0 1 1 0 8 1 knotepl 112 258 0 231 2 1 1 2 0 8 0 kqueuepl 104 218 0 216 1 0 1 1 0 8 0 pipepl 112 542 0 523 3 2 1 2 0 8 0 fdescpl 424 846 0 832 2 0 2 2 0 8 0 filepl 120 5529 0 5434 6 2 4 5 0 8 0 lockfpl 104 329 0 329 2 1 1 1 0 8 1 lockfspl 32 380 0 380 2 1 1 1 0 8 1 sessionpl 112 21 0 11 1 0 1 1 0 8 0 pgrppl 48 21 0 11 1 0 1 1 0 8 0 ucredpl 96 1473 0 1466 1 0 1 1 0 8 0 zombiepl 144 832 0 832 1 0 1 1 0 8 1 processpl 840 861 0 832 4 0 4 4 0 8 0 procpl 600 1787 0 1750 4 0 4 4 0 8 1 sosppl 128 3 0 3 2 2 0 1 0 8 0 sockpl 384 738 0 720 3 0 3 3 0 8 1 mcl64k 65536 263 0 263 32 32 0 29 0 8 0 mcl16k 16384 3 0 3 3 3 0 1 0 8 0 mcl12k 12288 11 0 11 6 6 0 1 0 8 0 mcl9k 9216 19 0 19 4 4 0 1 0 8 0 mcl8k 8192 11 0 11 3 3 0 1 0 8 0 mcl4k 4096 42 0 42 5 4 1 1 0 8 1 mcl2k2 2112 2 0 2 2 1 1 1 0 8 1 mcl2k 2048 47775 0 47741 12 7 5 9 0 8 0 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 81742 0 81669 22 15 7 19 0 8 0 bufpl 256 7525 0 3170 273 0 273 273 0 8 0 anonpl 16 117677 0 108750 75 31 44 53 0 62 7 amapchunkpl 152 3897 0 3818 17 13 4 13 0 158 0 amappl16 192 5652 0 5166 73 44 29 37 0 8 4 amappl15 184 273 0 271 1 0 1 1 0 8 0 amappl14 176 205 0 201 1 0 1 1 0 8 0 amappl13 168 35 0 32 1 0 1 1 0 8 0 amappl12 160 185 0 184 1 0 1 1 0 8 0 amappl11 152 308 0 299 1 0 1 1 0 8 0 amappl10 144 221 0 219 1 0 1 1 0 8 0 amappl9 136 461 0 457 1 0 1 1 0 8 0 amappl8 128 317 0 297 1 0 1 1 0 8 0 amappl7 120 29 0 25 1 0 1 1 0 8 0 amappl6 112 51 0 45 1 0 1 1 0 8 0 amappl5 104 433 0 421 1 0 1 1 0 8 0 amappl4 96 281 0 257 2 1 1 2 0 8 0 amappl3 88 273 0 267 1 0 1 1 0 8 0 amappl2 80 7098 0 7045 2 0 2 2 0 8 0 amappl1 72 24504 0 24095 24 15 9 19 0 8 0 amappl 72 2046 0 2015 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 49 0 4 1 0 1 1 0 8 0 uaddrrnd 24 846 0 832 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 846 0 832 1 0 1 1 0 8 0 vmmpekpl 168 9886 0 9868 2 0 2 2 0 8 0 vmmpepl 168 99214 0 97804 101 32 69 78 0 357 2 vmsppl 264 845 0 832 2 1 1 2 0 8 0 pdppl 4096 1698 0 1664 6 1 5 6 0 8 0 pvpl 32 335693 0 323766 159 32 127 136 0 265 29 pmappl 192 845 0 832 1 0 1 1 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 460 0 67 13 0 13 13 0 8 0