uvm_fault(0xffffffff8224f098, 0xffff80000217d002, 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(0xffffffff8224f098, 0xffff80000217d002, 0, 1) -> e rtable_satoplen(21,ffff80000217cf59) at rtable_satoplen+0x150 sys/net/rtable.c:888 end trace frame: 0xffff800014a2d390, count: 0 ddb> trace rtable_satoplen(21,ffff80000217cf59) at rtable_satoplen+0x150 sys/net/rtable.c:888 rtable_lookup(0,ffff80000217cf09,ffff80000217cf59,ffff80000217cf11,21) at rtable_lookup+0xed sys/net/rtable.c:391 rtm_output(ffff80000217cf00,ffff800014a2d480,ffff800014a2d488,21,0) at rtm_output+0x10c sys/net/rtsock.c:1122 route_output(fffffd80350f7200,fffffd803700f480,0,0) at route_output+0x78b sys/net/rtsock.c:806 route_usrreq(fffffd803700f480,9,fffffd80350f7200,0,0,ffff8000ffff8bc0) at route_usrreq+0x35d sys/net/rtsock.c:271 sosend(fffffd803700f480,0,ffff800014a2d748,0,0,0) at sosend+0x6e3 sys/kern/uipc_socket.c:513 sendit(ffff8000ffff8bc0,4,ffff800014a2d808,0,ffff800014a2d8d0) at sendit+0x58f sys/kern/uipc_syscalls.c:662 sys_sendto(ffff8000ffff8bc0,ffff800014a2d8e8,ffff800014a2d8d0) at sys_sendto+0x92 syscall(ffff800014a2d980) at syscall+0x541 Xsyscall(6,0,ffffffffffffffd8,0,6,80be021b010) at Xsyscall+0x128 end of kernel end trace frame: 0x80e9a4a6820, count: -10 ddb> show registers rdi 0 rsi 0xaa rbp 0xffff800014a2d2f0 rbx 0xffffffffffffff5a rdx 0xffff80000217cf5d rcx 0xffff80000217d003 rax 0xffff80000217d003 r8 0x21 r9 0x1 r10 0xffff8000021451c0 r11 0xef88ab46026ef386 r12 0 r13 0xffff80000217d003 r14 0xffffffff8214bcc0 mplsdomain r15 0x4 rip 0xffffffff81d33ff0 rtable_satoplen+0x150 cs 0x8 rflags 0x10287 __ALIGN_SIZE+0xf287 rsp 0xffff800014a2d2a0 ss 0x10 rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb> show proc PROC (syz-executor.0) pid=212114 stat=onproc flags process=0 proc=4000000 pri=73, usrpri=73, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff8710,0xffffffff82252c30 process=0xffff8000ffff7a50 user=0xffff800014a28000, vmspace=0xfffffd803f014108 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 35390 120373 41851 0 2 0 syz-executor.0 *35390 212114 41851 0 7 0x4000000 syz-executor.0 41851 61896 49163 0 3 0x82 nanosleep syz-executor.0 86438 356118 49163 0 3 0x82 nanosleep syz-executor.1 49163 226394 89873 0 3 0x82 thrsleep syz-fuzzer 49163 6193 89873 0 3 0x4000082 thrsleep syz-fuzzer 49163 401821 89873 0 3 0x4000082 thrsleep syz-fuzzer 49163 324666 89873 0 3 0x4000082 thrsleep syz-fuzzer 49163 328155 89873 0 3 0x4000082 kqread syz-fuzzer 49163 87405 89873 0 3 0x4000082 thrsleep syz-fuzzer 49163 84502 89873 0 3 0x4000082 thrsleep syz-fuzzer 89873 390064 40630 0 3 0x10008a pause ksh 40630 221683 7406 0 3 0x92 select sshd 269 77811 1 0 3 0x100083 ttyin getty 7406 198458 1 0 3 0x80 select sshd 58565 158911 41970 73 2 0x100090 syslogd 41970 188194 1 0 3 0x100082 netio syslogd 36269 374707 1 77 3 0x100090 poll dhclient 17997 32873 1 0 3 0x80 poll dhclient 35293 400118 0 0 2 0x14200 zerothread 56819 498602 0 0 3 0x14200 aiodoned aiodoned 84045 174929 0 0 3 0x14200 syncer update 21550 370345 0 0 3 0x14200 cleaner cleaner 32413 515533 0 0 3 0x14200 reaper reaper 81795 464248 0 0 3 0x14200 pgdaemon pagedaemon 12225 298824 0 0 3 0x14200 bored crynlk 24236 361321 0 0 3 0x14200 bored crypto 42174 418101 0 0 3 0x40014200 acpi0 acpi0 11441 365052 0 0 3 0x14200 bored softnet 14541 425313 0 0 3 0x14200 bored systqmp 65098 193809 0 0 3 0x14200 bored systq 17518 450274 0 0 3 0x40014200 bored softclock 84422 400226 0 0 3 0x40014200 idle0 39104 327971 0 0 3 0x14200 bored smr 1 2444 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 9471 6337K 6345K 78643K 10670 0 0 pcb 25 9K 10K 78643K 243 0 0 rtable 101 3K 3K 78643K 270 0 0 ifaddr 45 11K 12K 78643K 85 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 18 0 0 iov 0 0K 24K 78643K 28 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1195 75K 75K 78643K 1376 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 4 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 12 0K 0K 78643K 30 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12537 0 0 file desc 5 13K 21K 78643K 250 0 0 proc 41 30K 46K 78643K 313 0 0 subproc 64 65538K 67586K 78643K 102 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 39 0 0 in_multi 33 2K 2K 78643K 64 0 0 ether_multi 1 0K 0K 78643K 8 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 193 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 25K 78643K 1399 0 0 UVM aobj 7 2K 2K 78643K 9 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 23 0 0 NDP 8 0K 0K 78643K 24 0 0 temp 119 2353K 2423K 78643K 3647 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 5 0 1 1 0 1 1 0 8 0 inpcbpl 280 186 0 179 2 1 1 2 0 8 0 plimitpl 152 24 0 17 1 0 1 1 0 8 0 rtentry 112 50 0 10 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpcb 544 78 0 74 1 0 1 1 0 8 0 nd6 48 6 0 2 1 0 1 1 0 8 0 ppxss 1128 6 0 6 2 1 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 226 0 41 12 0 12 12 0 8 0 art_table 32 227 0 41 2 0 2 2 0 8 0 art_node 16 49 0 15 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 0 1 0 1 1 0 8 0 semapl 112 24 0 14 1 0 1 1 0 8 0 shmpl 112 7 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1901 0 495 46 0 46 46 0 8 0 ffsino 240 1901 0 495 85 1 84 84 0 8 1 nchpl 144 2464 0 835 61 0 61 61 0 8 0 uvmvnodes 72 1990 0 0 37 0 37 37 0 8 0 vnodes 200 1990 0 0 105 0 105 105 0 8 0 namei 1024 6745 0 6745 2 1 1 1 0 8 1 scsiplug 64 2 0 2 1 0 1 1 0 8 1 scxspl 192 7651 0 7651 7 6 1 6 0 8 1 sigapl 432 417 0 404 2 0 2 2 0 8 0 futexpl 56 4070 0 4070 1 0 1 1 0 8 1 knotepl 112 125 0 106 1 0 1 1 0 8 0 kqueuepl 104 66 0 64 1 0 1 1 0 8 0 pipepl 112 254 0 235 2 1 1 1 0 8 0 fdescpl 424 418 0 404 2 0 2 2 0 8 0 filepl 120 2486 0 2390 5 1 4 5 0 8 0 lockfpl 104 144 0 144 2 1 1 1 0 8 1 lockfspl 32 193 0 193 2 1 1 1 0 8 1 sessionpl 112 18 0 8 1 0 1 1 0 8 0 pgrppl 48 18 0 8 1 0 1 1 0 8 0 ucredpl 96 465 0 457 1 0 1 1 0 8 0 zombiepl 144 404 0 403 2 1 1 1 0 8 0 processpl 840 432 0 403 4 0 4 4 0 8 0 procpl 600 779 0 743 4 0 4 4 0 8 1 sockpl 384 372 0 353 4 1 3 4 0 8 1 mcl64k 65536 7 0 7 1 1 0 1 0 8 0 mcl16k 16384 2 0 2 2 1 1 1 0 8 1 mcl12k 12288 5 0 5 2 1 1 1 0 8 1 mcl9k 9216 3 0 3 3 2 1 1 0 8 1 mcl8k 8192 1 0 1 1 1 0 1 0 8 0 mcl4k 4096 18 0 18 3 2 1 1 0 8 1 mcl2k2 2112 2 0 2 1 0 1 1 0 8 1 mcl2k 2048 47778 0 47739 13 7 6 11 0 8 0 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 78971 0 78893 10 3 7 8 0 8 1 bufpl 256 6335 0 1810 284 0 284 284 0 8 0 anonpl 16 58292 0 49669 61 9 52 52 0 62 16 amapchunkpl 152 1927 0 1835 9 4 5 9 0 158 0 amappl16 192 2272 0 1828 45 10 35 39 0 8 10 amappl15 184 48 0 44 1 0 1 1 0 8 0 amappl14 176 248 0 244 2 1 1 1 0 8 0 amappl13 168 26 0 23 1 0 1 1 0 8 0 amappl12 160 80 0 75 1 0 1 1 0 8 0 amappl11 152 18 0 7 1 0 1 1 0 8 0 amappl10 144 57 0 56 2 1 1 1 0 8 0 amappl9 136 538 0 534 1 0 1 1 0 8 0 amappl8 128 129 0 113 1 0 1 1 0 8 0 amappl7 120 32 0 28 1 0 1 1 0 8 0 amappl6 112 54 0 46 1 0 1 1 0 8 0 amappl5 104 196 0 183 1 0 1 1 0 8 0 amappl4 96 547 0 523 2 1 1 2 0 8 0 amappl3 88 342 0 335 1 0 1 1 0 8 0 amappl2 80 2662 0 2612 2 0 2 2 0 8 0 amappl1 72 16471 0 16054 26 17 9 19 0 8 0 amappl 72 1019 0 983 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 8 0 2 1 0 1 1 0 8 0 uaddrrnd 24 418 0 404 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 418 0 404 1 0 1 1 0 8 0 vmmpekpl 168 6913 0 6893 2 0 2 2 0 8 0 vmmpepl 168 52264 0 50886 104 31 73 91 0 357 7 vmsppl 264 417 0 404 2 1 1 2 0 8 0 pdppl 4096 842 0 808 5 0 5 5 0 8 0 pvpl 32 188127 0 176472 145 13 132 132 0 265 36 pmappl 192 417 0 404 1 0 1 1 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 425 0 19 12 0 12 12 0 8 0