uvm_fault(0xffffffff821fc060, 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(0xffffffff821fc060, 0xffff800004d40002, 0, 1) -> e rtable_satoplen(21,ffff800004d3ff59) at rtable_satoplen+0x150 sys/net/rtable.c:888 end trace frame: 0xffff800014a24990, 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,ffff800014a24a80,ffff800014a24a88,21,0) at rtm_output+0x10c sys/net/rtsock.c:1122 route_output(fffffd803073ce00,fffffd8037006900,0,0) at route_output+0x78b sys/net/rtsock.c:806 route_usrreq(fffffd8037006900,9,fffffd803073ce00,0,0,ffff8000fffee720) at route_usrreq+0x35d sys/net/rtsock.c:271 sosend(fffffd8037006900,0,ffff800014a24d48,0,0,fffffffc) at sosend+0x6e3 sys/kern/uipc_socket.c:513 sendit(ffff8000fffee720,5,ffff800014a24e08,fffffffc,ffff800014a24ed0) at sendit+0x58f sys/kern/uipc_syscalls.c:662 sys_sendto(ffff8000fffee720,ffff800014a24ee8,ffff800014a24ed0) at sys_sendto+0x92 syscall(ffff800014a24f80) at syscall+0x541 Xsyscall(6,0,ffffffffffffffd8,0,6,b1e00aab010) at Xsyscall+0x128 end of kernel end trace frame: 0xb2073c4d980, count: -10 ddb> show registers rdi 0 rsi 0xaa rbp 0xffff800014a248f0 rbx 0xffffffffffffff5a rdx 0xffff800004d3ff5d rcx 0xffff800004d40003 rax 0xffff800004d40003 r8 0x21 r9 0x1 r10 0xffff800000935f00 r11 0xa60267c57f49fc2b r12 0 r13 0xffff800004d40003 r14 0xffffffff82150d78 mplsdomain r15 0x4 rip 0xffffffff816bd740 rtable_satoplen+0x150 cs 0x8 rflags 0x10287 __ALIGN_SIZE+0xf287 rsp 0xffff800014a248a0 ss 0x10 rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb> show proc PROC (syz-executor.1) pid=350108 stat=onproc flags process=0 proc=4000000 pri=77, usrpri=77, nice=20 forw=0xffffffffffffffff, list=0xffff8000fffef2d8,0xffffffff8224ce18 process=0xffff800014952d38 user=0xffff800014a20000, vmspace=0xfffffd803f014318 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 22406 79250 61707 0 2 0 syz-executor.1 *22406 350108 61707 0 7 0x4000000 syz-executor.1 61707 439313 97901 0 3 0x82 nanosleep syz-executor.1 14666 331575 97901 0 3 0x82 nanosleep syz-executor.0 32850 441323 1 0 3 0x100083 ttyin getty 55731 322644 0 0 3 0x14200 bored sosplice 97901 203591 78185 0 3 0x82 thrsleep syz-fuzzer 97901 40007 78185 0 3 0x4000082 thrsleep syz-fuzzer 97901 120223 78185 0 3 0x4000082 thrsleep syz-fuzzer 97901 481706 78185 0 3 0x4000082 thrsleep syz-fuzzer 97901 395703 78185 0 3 0x4000082 thrsleep syz-fuzzer 97901 301917 78185 0 3 0x4000082 kqread syz-fuzzer 97901 454456 78185 0 3 0x4000082 thrsleep syz-fuzzer 97901 159340 78185 0 3 0x4000082 thrsleep syz-fuzzer 78185 233111 91518 0 3 0x10008a pause ksh 91518 244499 33271 0 3 0x92 select sshd 33271 195116 1 0 3 0x80 select sshd 30236 47248 34042 73 2 0x100090 syslogd 34042 239309 1 0 3 0x100082 netio syslogd 98151 100519 1 77 3 0x100090 poll dhclient 7781 368940 1 0 3 0x80 poll dhclient 68717 310535 0 0 2 0x14200 zerothread 67990 189385 0 0 3 0x14200 aiodoned aiodoned 3040 6098 0 0 3 0x14200 syncer update 48379 131222 0 0 3 0x14200 cleaner cleaner 93519 389252 0 0 3 0x14200 reaper reaper 55810 263331 0 0 3 0x14200 pgdaemon pagedaemon 77298 309252 0 0 3 0x14200 bored crynlk 9221 165912 0 0 3 0x14200 bored crypto 29602 27181 0 0 3 0x40014200 acpi0 acpi0 24874 502232 0 0 3 0x14200 bored softnet 26622 344966 0 0 3 0x14200 bored systqmp 99414 386238 0 0 3 0x14200 bored systq 20206 410729 0 0 3 0x40014200 bored softclock 82750 371878 0 0 3 0x40014200 idle0 74430 47153 0 0 3 0x14200 bored smr 1 291734 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 9490 6344K 6352K 78643K 10809 0 0 pcb 25 9K 10K 78643K 345 0 0 rtable 101 3K 3K 78643K 548 0 0 ifaddr 51 12K 12K 78643K 154 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 36 0 0 iov 0 0K 12K 78643K 76 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1198 75K 76K 78643K 1631 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 9 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 12 0K 1K 78643K 82 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12537 0 0 file desc 5 13K 25K 78643K 568 0 0 sigio 0 0K 0K 78643K 6 0 0 proc 42 30K 54K 78643K 479 0 0 subproc 64 65538K 69634K 78643K 376 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 49 0 0 in_multi 33 2K 2K 78643K 146 0 0 ether_multi 1 0K 0K 78643K 5 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 66 291K 291K 78643K 66 0 0 exec 0 0K 1K 78643K 280 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 74 20K 21K 78643K 2158 0 0 UVM aobj 37 2K 2K 78643K 41 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 33 0 0 NDP 10 0K 0K 78643K 53 0 0 temp 156 2355K 2419K 78643K 4877 0 0 kqueue 0 0K 0K 78643K 5 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 280 274 0 267 1 0 1 1 0 8 0 plimitpl 152 45 0 38 1 0 1 1 0 8 0 rtentry 112 122 0 82 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 8 0 8 1 1 0 1 0 8 0 tcpcb 544 94 0 90 1 0 1 1 0 8 0 nd6 48 22 0 18 1 0 1 1 0 8 0 ppxss 1128 11 0 11 4 3 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 561 0 372 12 0 12 12 0 8 0 art_table 32 562 0 372 2 0 2 2 0 8 0 art_node 16 121 0 87 1 0 1 1 0 8 0 sysvmsgpl 40 22 0 6 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 80 0 70 1 0 1 1 0 8 0 shmpl 112 39 0 4 2 1 1 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 2404 0 992 46 0 46 46 0 8 0 ffsino 240 2404 0 992 84 0 84 84 0 8 0 nchpl 144 3442 0 1818 61 0 61 61 0 8 0 uvmvnodes 72 2653 0 0 49 0 49 49 0 8 0 vnodes 200 2653 0 0 140 0 140 140 0 8 0 namei 1024 10042 0 10042 2 1 1 1 0 8 1 scxspl 192 10408 0 10408 8 7 1 6 0 8 1 sigapl 432 710 0 697 2 0 2 2 0 8 0 futexpl 56 8722 0 8722 1 0 1 1 0 8 1 knotepl 112 296 0 269 2 0 2 2 0 8 0 kqueuepl 104 114 0 112 1 0 1 1 0 8 0 pipepl 112 464 0 445 2 1 1 1 0 8 0 fdescpl 424 711 0 697 2 0 2 2 0 8 0 filepl 120 4314 0 4218 4 0 4 4 0 8 1 lockfpl 104 169 0 169 2 1 1 1 0 8 1 lockfspl 32 156 0 156 2 1 1 1 0 8 1 sessionpl 112 27 0 17 1 0 1 1 0 8 0 pgrppl 48 37 0 27 1 0 1 1 0 8 0 ucredpl 96 813 0 806 1 0 1 1 0 8 0 zombiepl 144 697 0 696 2 1 1 1 0 8 0 processpl 840 726 0 696 4 0 4 4 0 8 0 procpl 600 1410 0 1372 4 0 4 4 0 8 0 sosppl 128 5 0 5 3 2 1 1 0 8 1 sockpl 384 574 0 555 4 1 3 3 0 8 1 mcl64k 65536 238 0 238 32 3 29 29 0 8 29 mcl16k 16384 2 0 2 2 2 0 1 0 8 0 mcl12k 12288 13 0 13 3 2 1 1 0 8 1 mcl9k 9216 14 0 14 3 2 1 1 0 8 1 mcl8k 8192 9 0 9 4 4 0 1 0 8 0 mcl4k 4096 36 0 36 3 2 1 1 0 8 1 mcl2k2 2112 6 0 6 4 3 1 1 0 8 1 mcl2k 2048 47248 0 47217 12 7 5 9 0 8 1 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 80669 0 80579 23 7 16 20 0 8 8 bufpl 256 6658 0 2349 270 0 270 270 0 8 0 anonpl 16 79203 0 71260 68 29 39 53 0 62 1 amapchunkpl 152 3235 0 3142 9 4 5 9 0 158 0 amappl16 192 3173 0 2702 54 25 29 36 0 8 4 amappl15 184 154 0 151 1 0 1 1 0 8 0 amappl14 176 247 0 242 1 0 1 1 0 8 0 amappl13 168 253 0 246 1 0 1 1 0 8 0 amappl12 160 240 0 240 2 2 0 1 0 8 0 amappl11 152 373 0 362 1 0 1 1 0 8 0 amappl10 144 56 0 54 2 1 1 1 0 8 0 amappl9 136 366 0 363 1 0 1 1 0 8 0 amappl8 128 387 0 371 1 0 1 1 0 8 0 amappl7 120 147 0 141 1 0 1 1 0 8 0 amappl6 112 60 0 54 1 0 1 1 0 8 0 amappl5 104 389 0 376 1 0 1 1 0 8 0 amappl4 96 284 0 262 1 0 1 1 0 8 0 amappl3 88 187 0 181 1 0 1 1 0 8 0 amappl2 80 5405 0 5354 2 0 2 2 0 8 0 amappl1 72 22163 0 21740 25 15 10 19 0 8 0 amappl 72 1677 0 1643 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 40 0 4 1 0 1 1 0 8 0 uaddrrnd 24 711 0 697 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 711 0 697 1 0 1 1 0 8 0 vmmpekpl 168 8727 0 8705 2 0 2 2 0 8 0 vmmpepl 168 84120 0 82719 120 43 77 94 0 357 11 vmsppl 264 710 0 697 3 2 1 2 0 8 0 pdppl 4096 1428 0 1394 6 1 5 6 0 8 0 pvpl 32 254410 0 243461 152 33 119 137 0 265 21 pmappl 192 710 0 697 1 0 1 1 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 457 0 29 13 0 13 13 0 8 0