uvm_fault(0xffffffff8224a310, 0xffff800003b91002, 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(0xffffffff8224a310, 0xffff800003b91002, 0, 1) -> e rtable_satoplen(21,ffff800003b90f59) at rtable_satoplen+0x150 sys/net/rtable.c:888 end trace frame: 0xffff8000149d7960, count: 0 ddb> trace rtable_satoplen(21,ffff800003b90f59) at rtable_satoplen+0x150 sys/net/rtable.c:888 rtable_lookup(0,ffff800003b90f09,ffff800003b90f59,ffff800003b90f11,21) at rtable_lookup+0xed sys/net/rtable.c:391 rtm_output(ffff800003b90f00,ffff8000149d7a50,ffff8000149d7a58,21,0) at rtm_output+0x1a7 sys/net/rtsock.c:952 route_output(fffffd803575dc00,fffffd803700cc00,0,0) at route_output+0x78b sys/net/rtsock.c:806 route_usrreq(fffffd803700cc00,9,fffffd803575dc00,0,0,ffff8000ffff2978) at route_usrreq+0x35d sys/net/rtsock.c:271 sosend(fffffd803700cc00,0,ffff8000149d7d18,0,0,0) at sosend+0x6e3 sys/kern/uipc_socket.c:513 sendit(ffff8000ffff2978,3,ffff8000149d7dd8,0,ffff8000149d7ea0) at sendit+0x58f sys/kern/uipc_syscalls.c:662 sys_sendto(ffff8000ffff2978,ffff8000149d7eb8,ffff8000149d7ea0) at sys_sendto+0x92 syscall(ffff8000149d7f50) at syscall+0x541 Xsyscall(6,0,ffffffffffffffd8,0,6,897ef989010) at Xsyscall+0x128 end of kernel end trace frame: 0x899ef79d700, count: -10 ddb> show registers rdi 0 rsi 0xaa rbp 0xffff8000149d78c0 rbx 0xffffffffffffff5a rdx 0xffff800003b90f5d rcx 0xffff800003b91003 rax 0xffff800003b91003 r8 0x21 r9 0x1 r10 0xffff80000173b500 r11 0x63b88fd4cfb524df r12 0 r13 0xffff800003b91003 r14 0xffffffff821d5430 mplsdomain r15 0x4 rip 0xffffffff81325f20 rtable_satoplen+0x150 cs 0x8 rflags 0x10287 __ALIGN_SIZE+0xf287 rsp 0xffff8000149d7870 ss 0x10 rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb> show proc PROC (syz-executor.1) pid=101711 stat=onproc flags process=0 proc=4000000 pri=78, usrpri=78, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff3080,0xffffffff822cc900 process=0xffff8000ffff7708 user=0xffff8000149d3000, vmspace=0xfffffd803f014948 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 20256 133108 19817 0 2 0 syz-executor.1 *20256 101711 19817 0 7 0x4000000 syz-executor.1 19817 115665 6487 0 3 0x82 nanosleep syz-executor.1 63874 483614 6487 0 2 0x2 syz-executor.0 77409 391268 0 0 3 0x14200 bored sosplice 6487 41888 79668 0 3 0x82 thrsleep syz-fuzzer 6487 29463 79668 0 2 0x4000482 syz-fuzzer 6487 396645 79668 0 3 0x4000082 thrsleep syz-fuzzer 6487 64567 79668 0 3 0x4000082 thrsleep syz-fuzzer 6487 226341 79668 0 3 0x4000082 thrsleep syz-fuzzer 6487 261758 79668 0 3 0x4000082 thrsleep syz-fuzzer 6487 487688 79668 0 3 0x4000082 thrsleep syz-fuzzer 6487 365210 79668 0 3 0x4000082 kqread syz-fuzzer 6487 320466 79668 0 3 0x4000082 thrsleep syz-fuzzer 79668 55091 71118 0 3 0x10008a pause ksh 71118 360725 65739 0 3 0x92 select sshd 20945 466247 1 0 3 0x100083 ttyin getty 65739 99156 1 0 3 0x80 select sshd 9685 515788 24632 73 2 0x100090 syslogd 24632 36077 1 0 3 0x100082 netio syslogd 67425 81094 1 77 3 0x100090 poll dhclient 36088 410232 1 0 3 0x80 poll dhclient 10718 390335 0 0 2 0x14200 zerothread 63035 356739 0 0 3 0x14200 aiodoned aiodoned 54753 53707 0 0 3 0x14200 syncer update 40561 349877 0 0 3 0x14200 cleaner cleaner 74108 389005 0 0 3 0x14200 reaper reaper 29904 483559 0 0 3 0x14200 pgdaemon pagedaemon 63702 521104 0 0 3 0x14200 bored crynlk 35354 406525 0 0 3 0x14200 bored crypto 95840 384278 0 0 3 0x40014200 acpi0 acpi0 39133 437196 0 0 3 0x14200 bored softnet 90706 136582 0 0 3 0x14200 bored systqmp 68529 313715 0 0 3 0x14200 bored systq 18389 194647 0 0 3 0x40014200 bored softclock 35276 132894 0 0 3 0x40014200 idle0 24596 232632 0 0 3 0x14200 bored smr 1 488669 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 6353K 6366K 78643K 11374 0 0 pcb 24 9K 10K 78643K 1263 0 0 rtable 104 4K 4K 78643K 994 0 0 ifaddr 62 15K 15K 78643K 406 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 54 0 0 iov 0 0K 28K 78643K 275 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1204 75K 76K 78643K 2219 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 38 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 12 0K 1K 78643K 283 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12537 0 0 file desc 5 13K 25K 78643K 2022 0 0 sigio 0 0K 0K 78643K 24 0 0 proc 42 30K 46K 78643K 679 0 0 subproc 64 65538K 67586K 78643K 394 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 234 0 0 in_multi 33 2K 2K 78643K 211 0 0 ether_multi 1 0K 0K 78643K 16 0 0 mrt 0 0K 0K 78643K 9 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 375 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 93 21K 26K 78643K 5629 0 0 UVM aobj 118 8K 8K 78643K 128 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 104 0 0 NDP 13 0K 0K 78643K 119 0 0 temp 177 2355K 2482K 78643K 8931 0 0 kqueue 0 0K 0K 78643K 20 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 13 0 9 1 0 1 1 0 8 0 inpcbpl 280 1038 0 1031 1 0 1 1 0 8 0 plimitpl 152 77 0 70 1 0 1 1 0 8 0 rtentry 112 126 0 86 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpcb 544 389 0 385 1 0 1 1 0 8 0 nd6 48 22 0 18 1 0 1 1 0 8 0 swfcl 56 1 0 0 1 0 1 1 0 8 0 ppxss 1128 70 0 70 11 10 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 563 0 375 12 0 12 12 0 8 0 art_table 32 564 0 375 2 0 2 2 0 8 0 art_node 16 121 0 87 1 0 1 1 0 8 0 sysvmsgpl 40 21 0 9 1 0 1 1 0 8 0 semupl 112 2 0 2 2 2 0 1 0 8 0 semapl 112 279 0 269 1 0 1 1 0 8 0 shmpl 112 126 0 10 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 4926 0 3470 48 0 48 48 0 8 0 ffsino 240 4926 0 3470 86 0 86 86 0 8 0 nchpl 144 7976 0 6318 62 0 62 62 0 8 0 uvmvnodes 72 5282 0 0 97 0 97 97 0 8 0 vnodes 200 5282 0 0 278 0 278 278 0 8 0 namei 1024 25007 0 25006 2 1 1 1 0 8 0 scsiplug 64 4 0 4 4 4 0 1 0 8 0 scxspl 192 28951 0 28951 19 18 1 7 0 8 1 sigapl 432 2163 0 2150 2 0 2 2 0 8 0 futexpl 56 34383 0 34383 1 0 1 1 0 8 1 knotepl 112 680 0 653 3 2 1 2 0 8 0 kqueuepl 104 590 0 588 1 0 1 1 0 8 0 pipepl 112 1494 0 1475 7 5 2 2 0 8 1 fdescpl 424 2164 0 2150 2 0 2 2 0 8 0 filepl 120 14321 0 14226 5 1 4 5 0 8 1 lockfpl 104 528 0 528 7 6 1 1 0 8 1 lockfspl 32 430 0 430 6 5 1 1 0 8 1 sessionpl 112 26 0 16 1 0 1 1 0 8 0 pgrppl 48 46 0 36 1 0 1 1 0 8 0 ucredpl 96 3025 0 3018 1 0 1 1 0 8 0 zombiepl 144 2150 0 2150 2 1 1 1 0 8 1 processpl 840 2179 0 2150 4 0 4 4 0 8 0 procpl 600 4762 0 4724 4 0 4 4 0 8 0 sosppl 128 30 0 30 8 7 1 1 0 8 1 sockpl 384 2128 0 2110 5 2 3 4 0 8 1 mcl64k 65536 1261 0 1261 108 95 13 65 0 8 13 mcl16k 16384 11 0 11 11 10 1 1 0 8 1 mcl12k 12288 48 0 48 10 9 1 1 0 8 1 mcl9k 9216 26 0 26 9 8 1 1 0 8 1 mcl8k 8192 33 0 33 10 10 0 1 0 8 0 mcl4k 4096 129 0 129 4 3 1 1 0 8 1 mcl2k2 2112 18 0 18 7 7 0 1 0 8 0 mcl2k 2048 50202 0 50167 13 8 5 11 0 8 0 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 94514 0 94454 67 60 7 38 0 8 0 bufpl 256 11436 0 5924 345 0 345 345 0 8 0 anonpl 16 250499 0 241605 126 73 53 53 0 62 14 amapchunkpl 152 9324 0 9245 26 22 4 14 0 158 0 amappl16 192 13022 0 12533 132 98 34 37 0 8 8 amappl15 184 391 0 390 1 0 1 1 0 8 0 amappl14 176 660 0 656 1 0 1 1 0 8 0 amappl13 168 1171 0 1164 1 0 1 1 0 8 0 amappl12 160 413 0 413 2 2 0 1 0 8 0 amappl11 152 318 0 308 1 0 1 1 0 8 0 amappl10 144 58 0 57 2 1 1 1 0 8 0 amappl9 136 721 0 716 1 0 1 1 0 8 0 amappl8 128 580 0 555 1 0 1 1 0 8 0 amappl7 120 609 0 601 1 0 1 1 0 8 0 amappl6 112 287 0 277 1 0 1 1 0 8 0 amappl5 104 549 0 537 1 0 1 1 0 8 0 amappl4 96 303 0 279 2 1 1 2 0 8 0 amappl3 88 495 0 489 1 0 1 1 0 8 0 amappl2 80 20023 0 19975 2 0 2 2 0 8 0 amappl1 72 47563 0 47147 23 13 10 19 0 8 0 amappl 72 5065 0 5034 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 64 127 0 10 2 0 2 2 0 8 0 uaddrrnd 24 2164 0 2150 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2164 0 2150 1 0 1 1 0 8 0 vmmpekpl 168 17696 0 17678 1 0 1 1 0 8 0 vmmpepl 168 236887 0 235454 141 67 74 85 0 357 5 vmsppl 264 2163 0 2150 3 2 1 2 0 8 0 pdppl 4096 4334 0 4300 6 1 5 6 0 8 0 pvpl 32 797964 0 785994 295 161 134 211 0 265 35 pmappl 192 2163 0 2150 1 0 1 1 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 671 0 190 17 0 17 17 0 8 0