uvm_fault(0xffffffff82248208, 0xffff800001b74002, 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(0xffffffff82248208, 0xffff800001b74002, 0, 1) -> e rtable_satoplen(21,ffff800001b73f59) at rtable_satoplen+0x150 sys/net/rtable.c:888 end trace frame: 0xffff8000149fc8d0, count: 0 ddb> trace rtable_satoplen(21,ffff800001b73f59) at rtable_satoplen+0x150 sys/net/rtable.c:888 rtable_lookup(0,ffff800001b73f09,ffff800001b73f59,ffff800001b73f11,21) at rtable_lookup+0xed sys/net/rtable.c:391 rtm_output(ffff800001b73f00,ffff8000149fc9c0,ffff8000149fc9c8,21,0) at rtm_output+0x1a7 sys/net/rtsock.c:952 route_output(fffffd8037974e00,fffffd8036443a88,0,0) at route_output+0x78b sys/net/rtsock.c:806 route_usrreq(fffffd8036443a88,9,fffffd8037974e00,0,0,ffff8000ffff8968) at route_usrreq+0x35d sys/net/rtsock.c:271 sosend(fffffd8036443a88,0,ffff8000149fcc88,0,0,0) at sosend+0x6e3 sys/kern/uipc_socket.c:513 sendit(ffff8000ffff8968,3,ffff8000149fcd48,0,ffff8000149fce10) at sendit+0x58f sys/kern/uipc_syscalls.c:662 sys_sendto(ffff8000ffff8968,ffff8000149fce28,ffff8000149fce10) at sys_sendto+0x92 syscall(ffff8000149fcec0) at syscall+0x541 Xsyscall(6,0,ffffffffffffffd8,0,6,813009d0010) at Xsyscall+0x128 end of kernel end trace frame: 0x815fe9f2950, count: -10 ddb> show registers rdi 0 rsi 0xaa rbp 0xffff8000149fc830 rbx 0xffffffffffffff5a rdx 0xffff800001b73f5d rcx 0xffff800001b74003 rax 0xffff800001b74003 r8 0x21 r9 0x1 r10 0xffff800000935780 r11 0x2cfc3a7c5472630e r12 0 r13 0xffff800001b74003 r14 0xffffffff82171b38 mplsdomain r15 0x4 rip 0xffffffff81bfd440 rtable_satoplen+0x150 cs 0x8 rflags 0x10287 __ALIGN_SIZE+0xf287 rsp 0xffff8000149fc7e0 ss 0x10 rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb> show proc PROC (syz-executor.1) pid=368719 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff92c8,0xffffffff8226ee68 process=0xffff8000ffff7708 user=0xffff8000149f7000, vmspace=0xfffffd803f014b58 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 95780 404956 73477 0 2 0 syz-executor.1 *95780 368719 73477 0 7 0x4000000 syz-executor.1 91207 474384 0 0 3 0x14200 bored sosplice 73477 298704 7462 0 3 0x82 nanosleep syz-executor.1 39523 158775 7462 0 2 0x2 syz-executor.0 7462 469995 87857 0 3 0x82 thrsleep syz-fuzzer 7462 212794 87857 0 2 0x4000482 syz-fuzzer 7462 448678 87857 0 3 0x4000082 thrsleep syz-fuzzer 7462 455030 87857 0 2 0x4000482 syz-fuzzer 7462 26977 87857 0 3 0x4000082 thrsleep syz-fuzzer 7462 504847 87857 0 3 0x4000082 kqread syz-fuzzer 7462 68260 87857 0 3 0x4000082 thrsleep syz-fuzzer 87857 20627 14407 0 3 0x10008a pause ksh 14407 377785 68272 0 3 0x92 select sshd 56844 42950 1 0 3 0x100083 ttyin getty 68272 148372 1 0 3 0x80 select sshd 46269 197924 60747 73 2 0x100090 syslogd 60747 290504 1 0 3 0x100082 netio syslogd 90745 103543 1 77 3 0x100090 poll dhclient 83807 225467 1 0 3 0x80 poll dhclient 20573 203195 0 0 2 0x14200 zerothread 71557 265088 0 0 3 0x14200 aiodoned aiodoned 82692 76109 0 0 3 0x14200 syncer update 22391 424838 0 0 3 0x14200 cleaner cleaner 89032 66191 0 0 3 0x14200 reaper reaper 1762 245364 0 0 3 0x14200 pgdaemon pagedaemon 32736 213722 0 0 3 0x14200 bored crynlk 64720 58341 0 0 3 0x14200 bored crypto 25109 447837 0 0 3 0x40014200 acpi0 acpi0 20047 429905 0 0 3 0x14200 bored softnet 55211 53057 0 0 3 0x14200 bored systqmp 34008 281528 0 0 3 0x14200 bored systq 94109 165652 0 0 3 0x40014200 bored softclock 49261 441495 0 0 3 0x40014200 idle0 6930 58825 0 0 3 0x14200 bored smr 1 469113 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 9460 6317K 6325K 78643K 10583 0 0 pcb 24 9K 9K 78643K 86 0 0 rtable 101 3K 3K 78643K 187 0 0 ifaddr 42 11K 11K 78643K 50 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 15 0 0 iov 0 0K 24K 78643K 18 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1205 75K 76K 78643K 1269 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 6 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 11 0K 0K 78643K 12 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12537 0 0 file desc 5 13K 21K 78643K 87 0 0 proc 40 30K 46K 78643K 252 0 0 subproc 64 65538K 67586K 78643K 70 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 6 0 0 in_multi 33 2K 2K 78643K 33 0 0 ether_multi 1 0K 0K 78643K 1 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 54 238K 238K 78643K 54 0 0 exec 0 0K 1K 78643K 169 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 69 20K 20K 78643K 939 0 0 UVM aobj 4 2K 2K 78643K 4 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 6 0 0 NDP 7 0K 0K 78643K 13 0 0 temp 95 2340K 2408K 78643K 2996 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 4 0 0 1 0 1 1 0 8 0 inpcbpl 280 60 0 53 1 0 1 1 0 8 0 plimitpl 152 17 0 10 1 0 1 1 0 8 0 rtentry 112 41 0 1 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpcb 544 22 0 18 1 0 1 1 0 8 0 nd6 48 4 0 0 1 0 1 1 0 8 0 ppxss 1128 2 0 2 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 186 0 0 12 0 12 12 0 8 0 art_table 32 187 0 0 2 0 2 2 0 8 0 art_node 16 40 0 6 1 0 1 1 0 8 0 semapl 112 10 0 1 1 0 1 1 0 8 0 shmpl 112 2 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1572 0 165 46 0 46 46 0 8 0 ffsino 240 1572 0 165 83 0 83 83 0 8 0 nchpl 144 1895 0 273 61 0 61 61 0 8 0 uvmvnodes 72 1631 0 0 30 0 30 30 0 8 0 vnodes 200 1631 0 0 86 0 86 86 0 8 0 namei 1024 4693 0 4693 2 1 1 1 0 8 1 scxspl 192 4667 0 4667 7 6 1 6 0 8 1 sigapl 432 255 0 242 2 0 2 2 0 8 0 futexpl 56 1267 0 1267 1 0 1 1 0 8 1 knotepl 112 90 0 63 2 0 2 2 0 8 0 kqueuepl 104 28 0 26 1 0 1 1 0 8 0 pipepl 112 150 0 131 2 1 1 1 0 8 0 fdescpl 424 256 0 242 2 0 2 2 0 8 0 filepl 120 1391 0 1296 4 0 4 4 0 8 1 lockfpl 104 35 0 35 2 1 1 1 0 8 1 lockfspl 32 49 0 49 2 1 1 1 0 8 1 sessionpl 112 17 0 7 1 0 1 1 0 8 0 pgrppl 48 17 0 7 1 0 1 1 0 8 0 ucredpl 96 226 0 219 1 0 1 1 0 8 0 zombiepl 144 242 0 242 2 1 1 1 0 8 1 processpl 840 271 0 242 4 0 4 4 0 8 0 procpl 600 373 0 337 4 0 4 4 0 8 1 sockpl 384 117 0 99 3 0 3 3 0 8 1 mcl64k 65536 231 0 231 29 2 27 29 0 8 27 mcl12k 12288 3 0 3 1 0 1 1 0 8 1 mcl9k 9216 3 0 3 1 0 1 1 0 8 1 mcl4k 4096 17 0 17 1 0 1 1 0 8 1 mcl2k 2048 46599 0 46564 11 5 6 9 0 8 1 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 76275 0 76206 20 6 14 18 0 8 8 bufpl 256 5477 0 1125 273 0 273 273 0 8 0 anonpl 16 38241 0 29449 53 3 50 51 0 62 14 amapchunkpl 152 998 0 919 5 1 4 5 0 158 0 amappl16 192 1247 0 773 35 4 31 35 0 8 7 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 29 0 24 1 0 1 1 0 8 0 amappl13 168 90 0 85 1 0 1 1 0 8 0 amappl12 160 8 0 6 1 0 1 1 0 8 0 amappl11 152 184 0 175 1 0 1 1 0 8 0 amappl10 144 56 0 54 1 0 1 1 0 8 0 amappl9 136 336 0 333 1 0 1 1 0 8 0 amappl8 128 116 0 100 1 0 1 1 0 8 0 amappl7 120 57 0 53 1 0 1 1 0 8 0 amappl6 112 50 0 45 1 0 1 1 0 8 0 amappl5 104 150 0 140 1 0 1 1 0 8 0 amappl4 96 294 0 274 1 0 1 1 0 8 0 amappl3 88 136 0 129 1 0 1 1 0 8 0 amappl2 80 1313 0 1263 2 0 2 2 0 8 0 amappl1 72 13353 0 12945 26 15 11 19 0 8 2 amappl 72 581 0 550 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 3 0 0 1 0 1 1 0 8 0 uaddrrnd 24 256 0 242 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 256 0 242 1 0 1 1 0 8 0 vmmpekpl 168 5846 0 5828 1 0 1 1 0 8 0 vmmpepl 168 33927 0 32549 107 16 91 93 0 357 30 vmsppl 264 255 0 242 2 1 1 2 0 8 0 pdppl 4096 518 0 484 5 0 5 5 0 8 0 pvpl 32 126003 0 114256 135 6 129 130 0 265 33 pmappl 192 255 0 242 1 0 1 1 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 443 0 16 13 0 13 13 0 8 0