uvm_fault(0xffffffff821fac58, 0xffff800003f8e002, 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(0xffffffff821fac58, 0xffff800003f8e002, 0, 1) -> e rtable_satoplen(21,ffff800003f8df59) at rtable_satoplen+0x150 sys/net/rtable.c:888 end trace frame: 0xffff800014a07cc0, count: 0 ddb> trace rtable_satoplen(21,ffff800003f8df59) at rtable_satoplen+0x150 sys/net/rtable.c:888 rtable_lookup(0,ffff800003f8df09,ffff800003f8df59,ffff800003f8df11,21) at rtable_lookup+0xed sys/net/rtable.c:391 rtm_output(ffff800003f8df00,ffff800014a07db0,ffff800014a07db8,21,0) at rtm_output+0x1a7 sys/net/rtsock.c:952 route_output(fffffd8035259100,fffffd803642cd88,0,0) at route_output+0x78b sys/net/rtsock.c:806 route_usrreq(fffffd803642cd88,9,fffffd8035259100,0,0,ffff8000ffff4e20) at route_usrreq+0x35d sys/net/rtsock.c:271 sosend(fffffd803642cd88,0,ffff800014a08078,0,0,0) at sosend+0x6e3 sys/kern/uipc_socket.c:513 sendit(ffff8000ffff4e20,3,ffff800014a08138,0,ffff800014a08200) at sendit+0x58f sys/kern/uipc_syscalls.c:662 sys_sendto(ffff8000ffff4e20,ffff800014a08218,ffff800014a08200) at sys_sendto+0x92 syscall(ffff800014a082b0) at syscall+0x541 Xsyscall(6,0,ffffffffffffffd8,0,6,41edffa9010) at Xsyscall+0x128 end of kernel end trace frame: 0x421732b8370, count: -10 ddb> show registers rdi 0 rsi 0xaa rbp 0xffff800014a07c20 rbx 0xffffffffffffff5a rdx 0xffff800003f8df5d rcx 0xffff800003f8e003 rax 0xffff800003f8e003 r8 0x21 r9 0x1 r10 0xffff800000935b00 r11 0xc5d10397e39e0d16 r12 0 r13 0xffff800003f8e003 r14 0xffffffff821a0690 mplsdomain r15 0x4 rip 0xffffffff811c3b10 rtable_satoplen+0x150 cs 0x8 rflags 0x10287 __ALIGN_SIZE+0xf287 rsp 0xffff800014a07bd0 ss 0x10 rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb> show proc PROC (syz-executor.1) pid=117507 stat=onproc flags process=0 proc=4000000 pri=80, usrpri=80, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff59d8,0xffffffff8224c108 process=0xffff8000ffff6010 user=0xffff800014a03000, vmspace=0xfffffd803f013d68 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 48435 135484 6172 0 2 0 syz-executor.1 *48435 117507 6172 0 7 0x4000000 syz-executor.1 98358 408323 56627 0 2 0x2 syz-executor.0 72313 114214 0 0 3 0x14200 bored sosplice 6172 287141 56627 0 2 0x482 syz-executor.1 56627 346921 15609 0 3 0x82 thrsleep syz-fuzzer 56627 204759 15609 0 3 0x4000082 nanosleep syz-fuzzer 56627 90114 15609 0 3 0x4000082 thrsleep syz-fuzzer 56627 248294 15609 0 3 0x4000082 kqread syz-fuzzer 56627 270384 15609 0 3 0x4000082 thrsleep syz-fuzzer 56627 28998 15609 0 3 0x4000082 thrsleep syz-fuzzer 56627 313595 15609 0 3 0x4000082 thrsleep syz-fuzzer 56627 516174 15609 0 3 0x4000082 thrsleep syz-fuzzer 15609 270600 97911 0 3 0x10008a pause ksh 97911 326106 66700 0 3 0x92 select sshd 83938 98759 1 0 3 0x100083 ttyin getty 66700 24910 1 0 3 0x80 select sshd 34037 134525 7351 73 2 0x100090 syslogd 7351 345014 1 0 3 0x100082 netio syslogd 36395 237792 1 77 3 0x100090 poll dhclient 56218 366592 1 0 3 0x80 poll dhclient 20167 16449 0 0 2 0x14200 zerothread 49123 433566 0 0 3 0x14200 aiodoned aiodoned 4153 492250 0 0 3 0x14200 syncer update 74763 312910 0 0 3 0x14200 cleaner cleaner 20707 219131 0 0 3 0x14200 reaper reaper 63804 332590 0 0 3 0x14200 pgdaemon pagedaemon 78003 327507 0 0 3 0x14200 bored crynlk 93216 263020 0 0 3 0x14200 bored crypto 6903 334429 0 0 3 0x40014200 acpi0 acpi0 9272 440541 0 0 3 0x14200 bored softnet 61875 123779 0 0 3 0x14200 bored systqmp 25147 157818 0 0 3 0x14200 bored systq 98413 274018 0 0 3 0x40014200 bored softclock 60828 359201 0 0 3 0x40014200 idle0 10875 188422 0 0 3 0x14200 bored smr 1 327447 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 9483 6333K 6349K 78643K 10904 0 0 pcb 24 9K 10K 78643K 620 0 0 rtable 101 3K 4K 78643K 518 0 0 ifaddr 49 12K 13K 78643K 198 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 33 0 0 iov 0 0K 24K 78643K 121 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1201 75K 76K 78643K 1740 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 20 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 12 0K 0K 78643K 136 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12537 0 0 file desc 5 13K 25K 78643K 872 0 0 sigio 0 0K 0K 78643K 12 0 0 proc 41 30K 54K 78643K 444 0 0 subproc 64 65538K 69634K 78643K 212 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 114 0 0 in_multi 33 2K 2K 78643K 116 0 0 ether_multi 1 0K 0K 78643K 8 0 0 mrt 0 0K 0K 78643K 3 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 72 318K 318K 78643K 72 0 0 exec 0 0K 1K 78643K 256 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 82 20K 21K 78643K 2843 0 0 UVM aobj 57 4K 4K 78643K 64 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 53 0 0 NDP 9 0K 0K 78643K 57 0 0 temp 146 2350K 2416K 78643K 5490 0 0 kqueue 0 0K 0K 78643K 6 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 8 0 4 1 0 1 1 0 8 0 inpcbpl 280 498 0 491 1 0 1 1 0 8 0 plimitpl 152 37 0 30 1 0 1 1 0 8 0 rtentry 112 79 0 39 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 11 0 11 1 1 0 1 0 8 0 tcpcb 544 180 0 176 1 0 1 1 0 8 0 nd6 48 12 0 8 1 0 1 1 0 8 0 ppxss 1128 30 0 30 4 3 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 358 0 170 12 0 12 12 0 8 0 art_table 32 359 0 170 2 0 2 2 0 8 0 art_node 16 76 0 42 1 0 1 1 0 8 0 sysvmsgpl 40 12 0 6 1 0 1 1 0 8 0 semapl 112 134 0 124 1 0 1 1 0 8 0 shmpl 112 62 0 7 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 3005 0 1579 47 0 47 47 0 8 0 ffsino 240 3005 0 1579 85 0 85 85 0 8 0 nchpl 144 4457 0 2818 61 0 61 61 0 8 0 uvmvnodes 72 3185 0 0 58 0 58 58 0 8 0 vnodes 200 3185 0 0 168 0 168 168 0 8 0 namei 1024 13405 0 13405 2 1 1 1 0 8 1 scxspl 192 14201 0 14201 10 9 1 5 0 8 1 sigapl 432 1028 0 1015 2 0 2 2 0 8 0 futexpl 56 14816 0 14816 1 0 1 1 0 8 1 knotepl 112 353 0 326 5 4 1 2 0 8 0 kqueuepl 104 276 0 274 1 0 1 1 0 8 0 pipepl 112 730 0 711 2 1 1 1 0 8 0 fdescpl 424 1029 0 1015 2 0 2 2 0 8 0 filepl 120 6698 0 6603 4 0 4 4 0 8 1 lockfpl 104 337 0 337 3 2 1 1 0 8 1 lockfspl 32 400 0 400 3 2 1 1 0 8 1 sessionpl 112 21 0 11 1 0 1 1 0 8 0 pgrppl 48 37 0 27 1 0 1 1 0 8 0 ucredpl 96 1676 0 1669 1 0 1 1 0 8 0 zombiepl 144 1015 0 1015 2 1 1 1 0 8 1 processpl 840 1044 0 1015 4 0 4 4 0 8 0 procpl 600 2164 0 2127 4 0 4 4 0 8 1 sosppl 128 10 0 10 3 3 0 1 0 8 0 sockpl 384 1023 0 1005 3 0 3 3 0 8 1 mcl64k 65536 767 0 767 94 63 31 64 0 8 31 mcl16k 16384 1 0 1 1 1 0 1 0 8 0 mcl12k 12288 24 0 24 2 1 1 1 0 8 1 mcl9k 9216 11 0 11 4 4 0 1 0 8 0 mcl8k 8192 13 0 13 5 4 1 1 0 8 1 mcl4k 4096 62 0 62 4 3 1 1 0 8 1 mcl2k2 2112 9 0 9 5 4 1 1 0 8 1 mcl2k 2048 47175 0 47135 14 8 6 11 0 8 0 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 82927 0 82862 54 47 7 37 0 8 0 bufpl 256 7718 0 3345 274 0 274 274 0 8 0 anonpl 16 123244 0 115237 81 32 49 52 0 62 11 amapchunkpl 152 4482 0 4403 12 7 5 7 0 158 1 amappl16 192 5442 0 4958 73 36 37 37 0 8 12 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 164 0 159 1 0 1 1 0 8 0 amappl13 168 1027 0 1020 1 0 1 1 0 8 0 amappl12 160 170 0 170 2 1 1 1 0 8 1 amappl11 152 229 0 220 1 0 1 1 0 8 0 amappl10 144 59 0 57 1 0 1 1 0 8 0 amappl9 136 394 0 390 1 0 1 1 0 8 0 amappl8 128 301 0 280 1 0 1 1 0 8 0 amappl7 120 532 0 526 1 0 1 1 0 8 0 amappl6 112 189 0 183 1 0 1 1 0 8 0 amappl5 104 140 0 129 1 0 1 1 0 8 0 amappl4 96 277 0 249 2 1 1 2 0 8 0 amappl3 88 166 0 160 1 0 1 1 0 8 0 amappl2 80 8890 0 8839 2 0 2 2 0 8 0 amappl1 72 27569 0 27149 23 13 10 19 0 8 0 amappl 72 2407 0 2376 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 63 0 7 1 0 1 1 0 8 0 uaddrrnd 24 1029 0 1015 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1029 0 1015 1 0 1 1 0 8 0 vmmpekpl 168 10693 0 10675 2 0 2 2 0 8 0 vmmpepl 168 113202 0 111779 121 42 79 79 0 357 13 vmsppl 264 1028 0 1015 2 1 1 2 0 8 0 pdppl 4096 2064 0 2030 6 1 5 6 0 8 0 pvpl 32 343089 0 332089 173 51 122 134 0 265 23 pmappl 192 1028 0 1015 1 0 1 1 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 558 0 130 14 0 14 14 0 8 0