uvm_fault(0xffffffff8224c460, 0xffff800004d41002, 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(0xffffffff8224c460, 0xffff800004d41002, 0, 1) -> e rtable_satoplen(21,ffff800004d40f59) at rtable_satoplen+0x150 sys/net/rtable.c:888 end trace frame: 0xffff8000149fba40, count: 0 ddb> trace rtable_satoplen(21,ffff800004d40f59) at rtable_satoplen+0x150 sys/net/rtable.c:888 rtable_lookup(0,ffff800004d40f09,ffff800004d40f59,ffff800004d40f11,21) at rtable_lookup+0xed sys/net/rtable.c:391 rtm_output(ffff800004d40f00,ffff8000149fbb30,ffff8000149fbb38,21,0) at rtm_output+0x1a7 sys/net/rtsock.c:952 route_output(fffffd803e644b00,fffffd8037011900,0,0) at route_output+0x78b sys/net/rtsock.c:806 route_usrreq(fffffd8037011900,9,fffffd803e644b00,0,0,ffff8000ffff2720) at route_usrreq+0x35d sys/net/rtsock.c:271 sosend(fffffd8037011900,0,ffff8000149fbdf8,0,0,0) at sosend+0x6e3 sys/kern/uipc_socket.c:513 sendit(ffff8000ffff2720,4,ffff8000149fbeb8,0,ffff8000149fbf80) at sendit+0x58f sys/kern/uipc_syscalls.c:662 sys_sendto(ffff8000ffff2720,ffff8000149fbf98,ffff8000149fbf80) at sys_sendto+0x92 syscall(ffff8000149fc030) at syscall+0x541 Xsyscall(6,0,ffffffffffffffd8,0,6,7c78b72f010) at Xsyscall+0x128 end of kernel end trace frame: 0x7ca795c5c40, count: -10 ddb> show registers rdi 0 rsi 0xaa rbp 0xffff8000149fb9a0 rbx 0xffffffffffffff5a rdx 0xffff800004d40f5d rcx 0xffff800004d41003 rax 0xffff800004d41003 r8 0x21 r9 0x1 r10 0xffff800000930c00 r11 0x76f8a67ae193b9d4 r12 0 r13 0xffff800004d41003 r14 0xffffffff821bcc50 mplsdomain r15 0x4 rip 0xffffffff81c22ac0 rtable_satoplen+0x150 cs 0x8 rflags 0x10287 __ALIGN_SIZE+0xf287 rsp 0xffff8000149fb950 ss 0x10 rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb> show proc PROC (syz-executor.0) pid=146184 stat=onproc flags process=0 proc=4000000 pri=73, usrpri=73, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff2bd0,0xffffffff82262138 process=0xffff800014963710 user=0xffff8000149f7000, vmspace=0xfffffd803f013630 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 98045 466122 26177 0 2 0 syz-executor.0 *98045 146184 26177 0 7 0x4000000 syz-executor.0 23699 134391 77538 0 2 0x2 syz-executor.1 26177 429858 77538 0 2 0x482 syz-executor.0 53035 107510 1 0 3 0x100083 ttyopn getty 59113 294862 0 0 3 0x14200 bored sosplice 77538 198203 29298 0 3 0x82 thrsleep syz-fuzzer 77538 437289 29298 0 3 0x4000082 nanosleep syz-fuzzer 77538 381810 29298 0 3 0x4000082 kqread syz-fuzzer 77538 187271 29298 0 3 0x4000082 thrsleep syz-fuzzer 77538 67302 29298 0 3 0x4000082 thrsleep syz-fuzzer 77538 246387 29298 0 3 0x4000082 thrsleep syz-fuzzer 77538 181797 29298 0 3 0x4000082 thrsleep syz-fuzzer 77538 264335 29298 0 3 0x4000082 thrsleep syz-fuzzer 29298 407671 15963 0 3 0x10008a pause ksh 15963 364411 88977 0 3 0x92 select sshd 88977 257637 1 0 3 0x80 select sshd 42326 148275 21234 73 2 0x100090 syslogd 21234 151361 1 0 3 0x100082 netio syslogd 46358 125252 1 77 3 0x100090 poll dhclient 70212 69146 1 0 3 0x80 poll dhclient 38100 19828 0 0 2 0x14200 zerothread 29557 137507 0 0 3 0x14200 aiodoned aiodoned 38130 83573 0 0 3 0x14200 syncer update 27784 351649 0 0 3 0x14200 cleaner cleaner 85798 212511 0 0 3 0x14200 reaper reaper 42159 344046 0 0 3 0x14200 pgdaemon pagedaemon 96657 241398 0 0 3 0x14200 bored crynlk 9653 19640 0 0 3 0x14200 bored crypto 25477 472924 0 0 3 0x40014200 acpi0 acpi0 66431 258555 0 0 3 0x14200 bored softnet 25026 34103 0 0 3 0x14200 bored systqmp 82393 271198 0 0 3 0x14200 bored systq 98196 244517 0 0 3 0x40014200 bored softclock 83468 102833 0 0 3 0x40014200 idle0 53650 418170 0 0 3 0x14200 bored smr 1 85193 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 6360K 78643K 11139 0 0 pcb 25 9K 11K 78643K 689 0 0 rtable 101 3K 3K 78643K 812 0 0 ifaddr 56 14K 15K 78643K 285 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 40 0 0 iov 0 0K 24K 78643K 174 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1190 75K 76K 78643K 1978 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 9K 78643K 23 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 12 0K 1K 78643K 167 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12537 0 0 file desc 5 13K 25K 78643K 1127 0 0 sigio 0 0K 0K 78643K 20 0 0 proc 42 30K 54K 78643K 583 0 0 subproc 64 65538K 69634K 78643K 444 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 168 0 0 in_multi 33 2K 2K 78643K 194 0 0 ether_multi 1 0K 0K 78643K 3 0 0 mrt 0 0K 0K 78643K 2 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 72 318K 318K 78643K 72 0 0 exec 0 0K 1K 78643K 332 0 0 pfkey data 0 0K 4K 78643K 4 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 77 20K 22K 78643K 3535 0 0 UVM aobj 72 5K 5K 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 1K 78643K 84 0 0 NDP 11 0K 0K 78643K 90 0 0 temp 163 2359K 2423K 78643K 6719 0 0 kqueue 0 0K 0K 78643K 14 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 15 0 11 1 0 1 1 0 8 0 inpcbpl 280 680 0 673 1 0 1 1 0 8 0 plimitpl 152 60 0 53 1 0 1 1 0 8 0 rtentry 112 140 0 100 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 9 0 9 1 1 0 1 0 8 0 tcpcb 544 252 0 248 1 0 1 1 0 8 0 nd6 48 26 0 22 1 0 1 1 0 8 0 ppxss 1128 37 0 37 5 4 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 653 0 465 12 0 12 12 0 8 0 art_table 32 654 0 465 2 0 2 2 0 8 0 art_node 16 139 0 105 1 0 1 1 0 8 0 sysvmsgpl 40 15 0 8 3 2 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 163 0 153 1 0 1 1 0 8 0 shmpl 112 83 0 13 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 3382 0 1929 47 0 47 47 0 8 0 ffsino 240 3382 0 1929 86 0 86 86 0 8 0 nchpl 144 5159 0 3490 63 1 62 62 0 8 0 uvmvnodes 72 3734 0 0 68 0 68 68 0 8 0 vnodes 200 3734 0 0 197 0 197 197 0 8 0 namei 1024 15741 0 15741 2 1 1 1 0 8 1 scsiplug 64 2 0 2 2 2 0 1 0 8 0 scxspl 192 18553 0 18553 17 16 1 6 0 8 1 sigapl 432 1265 0 1252 2 0 2 2 0 8 0 futexpl 56 18283 0 18283 1 0 1 1 0 8 1 knotepl 112 524 0 505 1 0 1 1 0 8 0 kqueuepl 104 306 0 304 1 0 1 1 0 8 0 pipepl 112 800 0 781 4 3 1 2 0 8 0 fdescpl 424 1266 0 1252 2 0 2 2 0 8 0 filepl 120 8076 0 7978 5 1 4 5 0 8 1 lockfpl 104 421 0 421 2 1 1 1 0 8 1 lockfspl 32 535 0 535 2 1 1 1 0 8 1 sessionpl 112 29 0 19 1 0 1 1 0 8 0 pgrppl 48 41 0 31 1 0 1 1 0 8 0 ucredpl 96 1878 0 1871 1 0 1 1 0 8 0 zombiepl 144 1252 0 1252 2 1 1 1 0 8 1 processpl 840 1281 0 1252 4 0 4 4 0 8 0 procpl 600 2696 0 2659 4 0 4 4 0 8 0 sosppl 128 23 0 23 8 8 0 1 0 8 0 sockpl 384 1252 0 1233 4 1 3 4 0 8 1 mcl64k 65536 36 0 36 5 4 1 1 0 8 1 mcl16k 16384 7 0 7 6 6 0 1 0 8 0 mcl12k 12288 27 0 27 5 4 1 1 0 8 1 mcl9k 9216 19 0 19 4 3 1 1 0 8 1 mcl8k 8192 15 0 15 6 5 1 1 0 8 1 mcl4k 4096 72 0 72 4 3 1 1 0 8 1 mcl2k2 2112 4 0 4 4 4 0 1 0 8 0 mcl2k 2048 50019 0 49980 12 6 6 10 0 8 0 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 88561 0 88479 13 6 7 8 0 8 0 bufpl 256 8563 0 4007 285 0 285 285 0 8 0 anonpl 16 169393 0 161007 81 31 50 54 0 62 13 amapchunkpl 152 5989 0 5909 23 18 5 13 0 158 1 amappl16 192 8313 0 7823 88 59 29 37 0 8 4 amappl15 184 240 0 236 1 0 1 1 0 8 0 amappl14 176 270 0 269 2 1 1 1 0 8 0 amappl13 168 30 0 27 1 0 1 1 0 8 0 amappl12 160 441 0 437 1 0 1 1 0 8 0 amappl11 152 18 0 7 1 0 1 1 0 8 0 amappl10 144 183 0 178 2 1 1 1 0 8 0 amappl9 136 742 0 739 1 0 1 1 0 8 0 amappl8 128 330 0 317 1 0 1 1 0 8 0 amappl7 120 86 0 79 1 0 1 1 0 8 0 amappl6 112 50 0 44 1 0 1 1 0 8 0 amappl5 104 583 0 572 1 0 1 1 0 8 0 amappl4 96 1403 0 1376 2 1 1 2 0 8 0 amappl3 88 419 0 414 1 0 1 1 0 8 0 amappl2 80 10118 0 10065 2 0 2 2 0 8 0 amappl1 72 32182 0 31767 25 15 10 19 0 8 0 amappl 72 2982 0 2950 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 13 2 0 2 2 0 8 0 uaddrrnd 24 1266 0 1252 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1266 0 1252 1 0 1 1 0 8 0 vmmpekpl 168 12164 0 12146 2 0 2 2 0 8 0 vmmpepl 168 146722 0 145311 117 38 79 83 0 357 13 vmsppl 264 1265 0 1252 3 2 1 2 0 8 0 pdppl 4096 2538 0 2504 6 1 5 6 0 8 0 pvpl 32 496149 0 484681 183 45 138 142 0 265 38 pmappl 192 1265 0 1252 1 0 1 1 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 444 0 34 12 0 12 12 0 8 0