uvm_fault(0xffffffff8221fef0, 0xffff800007f4a002, 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(0xffffffff8221fef0, 0xffff800007f4a002, 0, 1) -> e rtable_satoplen(21,ffff800007f49f59) at rtable_satoplen+0x150 sys/net/rtable.c:888 end trace frame: 0xffff800014a28670, count: 0 ddb> trace rtable_satoplen(21,ffff800007f49f59) at rtable_satoplen+0x150 sys/net/rtable.c:888 rtable_lookup(0,ffff800007f49f09,ffff800007f49f59,ffff800007f49f11,21) at rtable_lookup+0xed sys/net/rtable.c:391 rtm_output(ffff800007f49f00,ffff800014a28760,ffff800014a28768,21,0) at rtm_output+0x1a7 sys/net/rtsock.c:952 route_output(fffffd8036de1800,fffffd8037067c00,0,0) at route_output+0x78b sys/net/rtsock.c:806 route_usrreq(fffffd8037067c00,9,fffffd8036de1800,0,0,ffff8000ffff8e18) at route_usrreq+0x35d sys/net/rtsock.c:271 sosend(fffffd8037067c00,0,ffff800014a28a28,0,0,0) at sosend+0x6e3 sys/kern/uipc_socket.c:513 sendit(ffff8000ffff8e18,4,ffff800014a28ae8,0,ffff800014a28bb0) at sendit+0x58f sys/kern/uipc_syscalls.c:662 sys_sendto(ffff8000ffff8e18,ffff800014a28bc8,ffff800014a28bb0) at sys_sendto+0x92 syscall(ffff800014a28c60) at syscall+0x541 Xsyscall(6,0,ffffffffffffffd8,0,6,d812a492010) at Xsyscall+0x128 end of kernel end trace frame: 0xd83644e5b10, count: -10 ddb> show registers rdi 0 rsi 0xaa rbp 0xffff800014a285d0 rbx 0xffffffffffffff5a rdx 0xffff800007f49f5d rcx 0xffff800007f4a003 rax 0xffff800007f4a003 r8 0x21 r9 0x1 r10 0xffff800000936e40 r11 0x5fc3f41725babf7b r12 0 r13 0xffff800007f4a003 r14 0xffffffff821ecd80 mplsdomain r15 0x4 rip 0xffffffff81d7a770 rtable_satoplen+0x150 cs 0x8 rflags 0x10287 __ALIGN_SIZE+0xf287 rsp 0xffff800014a28580 ss 0x10 rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb> show proc PROC (syz-executor.1) pid=290255 stat=onproc flags process=0 proc=4000000 pri=79, usrpri=79, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff9520,0xffffffff82282f80 process=0xffff8000ffff7708 user=0xffff800014a23000, vmspace=0xfffffd803f013528 estcpu=29, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 13720 522443 4417 0 2 0 syz-executor.1 *13720 290255 4417 0 7 0x4000000 syz-executor.1 4417 260638 5463 0 3 0x82 nanosleep syz-executor.1 43407 354552 5463 0 2 0x2 syz-executor.0 56790 344062 0 0 3 0x14200 bored sosplice 5463 468720 20291 0 3 0x82 thrsleep syz-fuzzer 5463 476313 20291 0 3 0x4000082 thrsleep syz-fuzzer 5463 107541 20291 0 3 0x4000082 thrsleep syz-fuzzer 5463 443972 20291 0 3 0x4000082 thrsleep syz-fuzzer 5463 79157 20291 0 3 0x4000082 thrsleep syz-fuzzer 5463 17069 20291 0 3 0x4000082 thrsleep syz-fuzzer 5463 220624 20291 0 3 0x4000082 thrsleep syz-fuzzer 5463 463628 20291 0 3 0x4000082 kqread syz-fuzzer 5463 154780 20291 0 3 0x4000082 thrsleep syz-fuzzer 20291 350356 13342 0 3 0x10008a pause ksh 13342 491968 4354 0 3 0x92 select sshd 41768 221970 1 0 3 0x100083 ttyin getty 4354 502744 1 0 3 0x80 select sshd 75345 488005 52933 73 2 0x100090 syslogd 52933 231189 1 0 3 0x100082 netio syslogd 34218 285783 1 77 3 0x100090 poll dhclient 55077 338364 1 0 3 0x80 poll dhclient 53587 408865 0 0 2 0x14200 zerothread 41325 186819 0 0 3 0x14200 aiodoned aiodoned 507 41908 0 0 3 0x14200 syncer update 55176 143123 0 0 3 0x14200 cleaner cleaner 32445 245774 0 0 3 0x14200 reaper reaper 29986 487943 0 0 3 0x14200 pgdaemon pagedaemon 22265 480897 0 0 3 0x14200 bored crynlk 4797 334144 0 0 3 0x14200 bored crypto 40338 83992 0 0 3 0x40014200 acpi0 acpi0 41644 384373 0 0 3 0x14200 bored softnet 45782 50086 0 0 3 0x14200 bored systqmp 1122 32439 0 0 3 0x14200 bored systq 50865 503695 0 0 3 0x40014200 bored softclock 94548 382492 0 0 3 0x40014200 idle0 83376 225410 0 0 3 0x14200 bored smr 1 64932 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 9541 10456K 10478K 78643K 11581 0 0 pcb 25 9K 11K 78643K 1343 0 0 rtable 101 3K 4K 78643K 1371 0 0 ifaddr 67 15K 16K 78643K 521 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 62 0 0 iov 0 0K 24K 78643K 327 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1200 75K 77K 78643K 2693 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 1K 1K 78643K 317 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12537 0 0 file desc 5 13K 21K 78643K 2196 0 0 sigio 0 0K 0K 78643K 46 0 0 proc 42 30K 46K 78643K 885 0 0 subproc 64 65538K 67586K 78643K 730 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 284 0 0 in_multi 33 2K 2K 78643K 302 0 0 ether_multi 1 0K 0K 78643K 9 0 0 mrt 0 0K 0K 78643K 11 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 108 477K 477K 78643K 108 0 0 exec 0 0K 1K 78643K 437 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 87 21K 38K 78643K 6283 0 0 UVM aobj 122 8K 8K 78643K 142 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 102 0 0 NDP 15 0K 0K 78643K 164 0 0 temp 190 2359K 2488K 78643K 10282 0 0 kqueue 0 0K 0K 78643K 35 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 23 0 19 1 0 1 1 0 8 0 inpcbpl 280 1159 0 1152 1 0 1 1 0 8 0 plimitpl 152 90 0 83 1 0 1 1 0 8 0 rtentry 112 214 0 174 2 0 2 2 0 8 0 syncache 264 4 0 4 2 2 0 1 0 8 0 tcpqe 32 25 0 25 2 2 0 1 0 8 0 tcpcb 544 387 0 383 1 0 1 1 0 8 0 nd6 48 42 0 38 1 0 1 1 0 8 0 ppxss 1128 83 0 83 11 10 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1005 0 813 13 1 12 13 0 8 0 art_table 32 1006 0 813 2 0 2 2 0 8 0 art_node 16 211 0 177 1 0 1 1 0 8 0 sysvmsgpl 40 7 0 5 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 309 0 299 1 0 1 1 0 8 0 shmpl 112 140 0 20 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 5415 0 3938 48 0 48 48 0 8 0 ffsino 240 5415 0 3938 88 0 88 88 0 8 0 nchpl 144 8716 0 7052 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 27444 0 27443 4 3 1 1 0 8 0 scsiplug 64 8 0 8 5 5 0 1 0 8 0 scxspl 192 31241 0 31241 23 21 2 6 0 8 2 sigapl 432 2309 0 2296 2 0 2 2 0 8 0 futexpl 56 36291 0 36291 2 1 1 1 0 8 1 knotepl 112 952 0 933 1 0 1 1 0 8 0 kqueuepl 104 710 0 708 1 0 1 1 0 8 0 pipepl 112 1574 0 1555 8 7 1 2 0 8 0 fdescpl 424 2310 0 2296 2 0 2 2 0 8 0 filepl 120 15072 0 14976 8 4 4 5 0 8 1 lockfpl 104 753 0 753 5 4 1 1 0 8 1 lockfspl 32 901 0 901 5 4 1 1 0 8 1 sessionpl 112 36 0 26 1 0 1 1 0 8 0 pgrppl 48 72 0 62 1 0 1 1 0 8 0 ucredpl 96 3744 0 3737 1 0 1 1 0 8 0 zombiepl 144 2296 0 2296 3 2 1 1 0 8 1 processpl 840 2325 0 2296 4 0 4 4 0 8 0 procpl 600 5230 0 5192 4 0 4 4 0 8 1 sosppl 128 28 0 28 10 10 0 1 0 8 0 sockpl 384 2297 0 2278 9 6 3 4 0 8 1 mcl64k 65536 1421 0 1421 120 119 1 47 0 8 1 mcl16k 16384 8 0 8 7 7 0 1 0 8 0 mcl12k 12288 45 0 45 13 12 1 1 0 8 1 mcl9k 9216 39 0 39 14 13 1 1 0 8 1 mcl8k 8192 44 0 44 13 12 1 1 0 8 1 mcl4k 4096 119 0 119 10 9 1 1 0 8 1 mcl2k2 2112 15 0 15 7 7 0 1 0 8 0 mcl2k 2048 50937 0 50899 15 9 6 11 0 8 0 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 98083 0 98014 77 71 6 29 0 8 0 bufpl 256 12636 0 6886 360 0 360 360 0 8 0 anonpl 16 256831 0 248089 103 65 38 53 0 62 0 amapchunkpl 152 10914 0 10834 38 33 5 14 0 158 1 amappl16 192 13142 0 12667 121 96 25 36 0 8 1 amappl15 184 129 0 125 1 0 1 1 0 8 0 amappl14 176 736 0 732 3 2 1 1 0 8 0 amappl13 168 384 0 381 1 0 1 1 0 8 0 amappl12 160 599 0 598 2 1 1 1 0 8 0 amappl11 152 19 0 8 1 0 1 1 0 8 0 amappl10 144 803 0 801 3 2 1 1 0 8 0 amappl9 136 743 0 740 1 0 1 1 0 8 0 amappl8 128 329 0 303 1 0 1 1 0 8 0 amappl7 120 570 0 562 1 0 1 1 0 8 0 amappl6 112 69 0 59 1 0 1 1 0 8 0 amappl5 104 254 0 242 1 0 1 1 0 8 0 amappl4 96 1997 0 1969 2 1 1 2 0 8 0 amappl3 88 1387 0 1381 1 0 1 1 0 8 0 amappl2 80 19344 0 19293 2 0 2 2 0 8 0 amappl1 72 51802 0 51393 26 17 9 19 0 8 0 amappl 72 5584 0 5552 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 64 141 0 20 2 0 2 2 0 8 0 uaddrrnd 24 2310 0 2296 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2310 0 2296 1 0 1 1 0 8 0 vmmpekpl 168 19588 0 19566 2 0 2 2 0 8 0 vmmpepl 168 247597 0 246181 180 112 68 90 0 357 0 vmsppl 264 2309 0 2296 5 4 1 2 0 8 0 pdppl 4096 4626 0 4592 5 0 5 5 0 8 0 pvpl 32 746265 0 734368 326 205 121 239 0 265 21 pmappl 192 2309 0 2296 1 0 1 1 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 719 0 233 16 1 15 16 0 8 0