uvm_fault(0xffffffff825597b0, 0xffff800000bd0074, 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(0xffffffff825597b0, 0xffff800000bd0074, 0, 1) -> e rtable_satoplen(2,ffff800000bcff78) at rtable_satoplen+0x150 sys/net/rtable.c:894 end trace frame: 0xffff8000179d4990, count: 0 ddb> trace rtable_satoplen(2,ffff800000bcff78) at rtable_satoplen+0x150 sys/net/rtable.c:894 rtable_lookup(0,fffffd803acf9320,ffff800000bcff78,ffff800000bcff58,4) at rtable_lookup+0xe0 sys/net/rtable.c:391 rtrequest_delete(ffff8000179d4a30,4,ffff800000ad6800,ffff8000179d4b00,0) at rtrequest_delete+0xe3 sys/net/route.c:775 rt_ifa_del(ffff800000bcff00,800100,ffff800000bcff58,0) at rt_ifa_del+0x3c3 sys/net/route.c:1191 in_purgeaddr(ffff800000bcff00) at in_purgeaddr+0xc6 in_remove_prefix sys/netinet/in.c:738 [inline] in_purgeaddr(ffff800000bcff00) at in_purgeaddr+0xc6 in_ifscrub sys/netinet/in.c:562 [inline] in_purgeaddr(ffff800000bcff00) at in_purgeaddr+0xc6 sys/netinet/in.c:678 in_ifinit(ffff800000ad6800,ffff800000bcff00,ffff8000179d4e80,1) at in_ifinit+0x234 sys/netinet/in.c:664 in_ioctl_change_ifaddr(8040691a,ffff8000179d4e70,ffff800000ad6800,1) at in_ioctl_change_ifaddr+0x5de sys/netinet/in.c:452 in_ioctl(8040691a,ffff8000179d4e70,ffff800000ad6800,1) at in_ioctl+0x205 sys/netinet/in.c:234 ifioctl(fffffd8037d24600,8040691a,ffff8000179d4e70,ffff8000ffff3650) at ifioctl+0xb34 sys/net/if.c:2202 sys_ioctl(ffff8000ffff3650,ffff8000179d4f88,ffff8000179d4fd0) at sys_ioctl+0x5b9 syscall(ffff8000179d5050) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,661c21fe010) at Xsyscall+0x128 end of kernel end trace frame: 0x663d46ce9a0, count: -12 ddb> show registers rdi 0 rsi 0xfd rbp 0xffff8000179d48f0 rbx 0xffffffffffffff07 rdx 0xffff800000bcff7c rcx 0xffff800000bd0075 rax 0xffff800000bd0075 r8 0x4 r9 0x5 r10 0x6ba2c40e1bdab731 r11 0x4b74d43b353f4239 r12 0 r13 0xffff800000bd0075 r14 0xffffffff824beb60 inetdomain r15 0x4 rip 0xffffffff81800560 rtable_satoplen+0x150 cs 0x8 rflags 0x10283 __ALIGN_SIZE+0xf283 rsp 0xffff8000179d48a0 ss 0x10 rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb> show proc PROC (syz-executor.0) pid=74818 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff2c70,0xffffffff825a6d38 process=0xffff8000ffff70f0 user=0xffff8000179d0000, vmspace=0xfffffd803f012110 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 53952 322612 98471 0 2 0 syz-executor.0 *53952 74818 98471 0 7 0x4000000 syz-executor.0 97288 195180 9457 0 3 0x80 nanosleep syz-executor.1 97288 520177 9457 0 3 0x4000080 netio syz-executor.1 97288 297120 9457 0 3 0x4000080 fsleep syz-executor.1 9457 263144 55790 0 3 0x82 nanosleep syz-executor.1 98471 221026 55790 0 3 0x82 nanosleep syz-executor.0 44825 478977 0 0 3 0x14200 acct acct 57360 395879 0 0 3 0x14200 bored sosplice 55790 145924 38776 0 3 0x82 kqread syz-fuzzer 55790 260964 38776 0 3 0x4000082 thrsleep syz-fuzzer 55790 24000 38776 0 3 0x4000082 thrsleep syz-fuzzer 55790 268543 38776 0 3 0x4000082 thrsleep syz-fuzzer 55790 45944 38776 0 3 0x4000082 thrsleep syz-fuzzer 55790 258079 38776 0 3 0x4000082 thrsleep syz-fuzzer 55790 174682 38776 0 3 0x4000082 thrsleep syz-fuzzer 55790 283246 38776 0 3 0x4000082 thrsleep syz-fuzzer 38776 427303 4121 0 3 0x10008a pause ksh 4121 206313 50124 0 3 0x92 select sshd 9900 353388 1 0 3 0x100083 ttyin getty 50124 310338 1 0 3 0x80 select sshd 18953 93022 51157 73 3 0x100090 kqread syslogd 51157 239389 1 0 3 0x100082 netio syslogd 55501 403206 1 77 3 0x100090 poll dhclient 73151 501538 1 0 3 0x80 poll dhclient 78585 356794 0 0 2 0x14200 zerothread 94916 462793 0 0 3 0x14200 aiodoned aiodoned 35984 453137 0 0 3 0x14200 syncer update 4516 313551 0 0 3 0x14200 cleaner cleaner 93381 241114 0 0 3 0x14200 reaper reaper 56399 284591 0 0 3 0x14200 pgdaemon pagedaemon 86547 7912 0 0 3 0x14200 bored crynlk 49922 64362 0 0 3 0x14200 bored crypto 44350 123276 0 0 3 0x40014200 acpi0 acpi0 53576 318892 0 0 3 0x14200 bored softnet 8400 456008 0 0 3 0x14200 bored systqmp 95764 481401 0 0 3 0x14200 bored systq 54321 11419 0 0 3 0x40014200 bored softclock 95794 169641 0 0 3 0x40014200 idle0 22707 355455 0 0 3 0x14200 bored smr 1 258213 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 9599 7155K 15204K 78643K 25968 0 0 pcb 13 12K 14K 78643K 4552 0 0 rtable 120 8K 10K 78643K 3312 0 0 ifaddr 86 20K 20K 78643K 792 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 286 0 0 iov 0 0K 28K 78643K 1183 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1232 77K 78K 78643K 6444 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 70 0 0 VM map 54 13K 13K 78643K 72 0 0 sem 12 0K 1K 78643K 1627 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1794 195K 288K 78643K 12646 0 0 file desc 6 17K 25K 78643K 5076 0 0 sigio 0 0K 0K 78643K 78 0 0 proc 49 38K 63K 78643K 1795 0 0 subproc 32 2K 2K 78643K 497 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 588 0 0 in_multi 34 2K 2K 78643K 645 0 0 ether_multi 1 0K 0K 78643K 49 0 0 mrt 0 0K 0K 78643K 28 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 174 768K 768K 78643K 174 0 0 exec 0 0K 1K 78643K 1068 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 212 479K 480K 78643K 13707 0 0 UVM aobj 130 4K 4K 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 1K 78643K 2591 0 0 NDP 19 0K 0K 78643K 269 0 0 temp 220 3540K 4180K 78643K 192733 0 0 kqueue 0 0K 0K 78643K 67 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 64 144 0 138 1 0 1 1 0 8 0 rtpcb 80 558 0 556 1 0 1 1 0 8 0 rtentry 112 661 0 617 2 0 2 2 0 8 0 unpcb 120 2685 0 2670 6 5 1 2 0 8 0 syncache 264 33 0 33 14 14 0 1 0 8 0 tcpqe 32 86 0 86 10 10 0 1 0 8 0 tcpcb 544 5339 0 5333 64 63 1 15 0 8 0 ipq 40 23 0 23 12 11 1 1 0 8 1 ipqe 40 356 0 356 12 11 1 1 0 8 1 inpcb 280 13115 0 13103 58 56 2 13 0 8 1 rttmr 72 8 0 8 7 7 0 1 0 8 0 ip6q 72 7 0 7 4 4 0 1 0 8 0 ip6af 40 14 0 14 3 3 0 1 0 8 0 nd6 48 82 0 78 2 1 1 1 0 8 0 pkpcb 40 21 0 21 8 8 0 1 0 8 0 swfcl 56 2 0 0 1 0 1 1 0 8 0 ppxss 1128 70 0 70 24 23 1 1 0 8 1 art_heap8 4096 13 0 12 10 9 1 3 0 8 0 art_heap4 256 2715 0 2492 48 33 15 16 0 8 0 art_table 32 2728 0 2504 4 2 2 3 0 8 0 art_node 16 653 0 613 1 0 1 1 0 8 0 sysvmsgpl 40 46 0 23 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 1625 0 1615 1 0 1 1 0 8 0 shmpl 112 140 0 12 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 9247 0 7832 46 0 46 46 0 8 0 ffsino 240 9247 0 7832 84 0 84 84 0 8 0 nchpl 144 17257 0 16794 60 41 19 60 0 8 0 uvmvnodes 72 7906 0 0 144 0 144 144 0 8 0 vnodes 208 7906 0 0 417 0 417 417 0 8 0 namei 1024 58439 0 58439 5 4 1 1 0 8 1 vcpupl 1984 53 0 1 7 0 7 7 0 8 0 vmpool 520 70 0 18 4 0 4 4 0 8 0 scsiplug 64 2 0 2 1 1 0 1 0 8 0 scxspl 192 69992 0 69992 36 34 2 7 0 8 2 plimitpl 152 447 0 440 1 0 1 1 0 8 0 sigapl 432 5166 0 5152 2 0 2 2 0 8 0 futexpl 56 147084 0 147083 5 4 1 1 0 8 0 knotepl 112 1425 0 1406 2 1 1 2 0 8 0 kqueuepl 104 2042 0 2040 13 12 1 4 0 8 0 pipepl 112 7202 0 7183 12 11 1 2 0 8 0 fdescpl 424 5167 0 5152 2 0 2 2 0 8 0 filepl 120 51145 0 51047 56 52 4 11 0 8 1 lockfpl 104 1989 0 1988 1 0 1 1 0 8 0 lockfspl 48 661 0 660 1 0 1 1 0 8 0 sessionpl 112 44 0 34 1 0 1 1 0 8 0 pgrppl 48 78 0 68 1 0 1 1 0 8 0 ucredpl 96 6298 0 6290 1 0 1 1 0 8 0 zombiepl 144 5152 0 5152 1 0 1 1 0 8 1 processpl 864 5183 0 5152 4 0 4 4 0 8 0 procpl 632 11467 0 11426 4 0 4 4 0 8 0 sosppl 128 94 0 94 15 14 1 1 0 8 1 sockpl 384 16911 0 16883 100 95 5 22 0 8 2 mcl64k 65536 1515 0 1515 136 135 1 64 0 8 1 mcl16k 16384 58 0 58 21 21 0 1 0 8 0 mcl12k 12288 157 0 157 16 15 1 1 0 8 1 mcl9k 9216 95 0 95 18 17 1 1 0 8 1 mcl8k 8192 229 0 229 11 10 1 1 0 8 1 mcl4k 4096 584 0 584 7 6 1 1 0 8 1 mcl2k2 2112 57 0 57 20 19 1 1 0 8 1 mcl2k 2048 70332 0 70290 26 20 6 13 0 8 0 mtagpl 80 252 0 240 3 2 1 1 0 8 0 mbufpl 256 159099 0 158975 123 109 14 39 0 8 0 bufpl 256 29094 0 21178 496 0 496 496 0 8 0 anonpl 16 649749 0 629227 244 147 97 104 0 62 9 amapchunkpl 152 29432 0 29286 120 112 8 20 0 158 1 amappl16 192 31262 0 30051 240 174 66 74 0 8 5 amappl15 184 1012 0 1004 7 6 1 1 0 8 0 amappl14 176 1034 0 1030 1 0 1 1 0 8 0 amappl13 168 785 0 783 1 0 1 1 0 8 0 amappl12 160 619 0 615 1 0 1 1 0 8 0 amappl11 152 160 0 148 1 0 1 1 0 8 0 amappl10 144 915 0 914 1 0 1 1 0 8 0 amappl9 136 1378 0 1372 1 0 1 1 0 8 0 amappl8 128 945 0 896 2 0 2 2 0 8 0 amappl7 120 1028 0 1020 1 0 1 1 0 8 0 amappl6 112 132 0 118 1 0 1 1 0 8 0 amappl5 104 962 0 952 1 0 1 1 0 8 0 amappl4 96 5155 0 5122 1 0 1 1 0 8 0 amappl3 88 1347 0 1335 1 0 1 1 0 8 0 amappl2 80 40267 0 40176 3 1 2 3 0 8 0 amappl1 72 104468 0 104043 26 17 9 20 0 8 0 amappl 80 12231 0 12163 2 0 2 2 0 84 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 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 64 141 0 12 3 0 3 3 0 8 0 uaddrrnd 24 5237 0 5152 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 5237 0 5152 1 0 1 1 0 8 0 vmmpekpl 168 43680 0 43647 2 0 2 2 0 8 0 vmmpepl 168 633578 0 630976 450 299 151 153 0 357 35 vmsppl 272 5166 0 5152 3 2 1 2 0 8 0 pdppl 4096 10480 0 10392 15 3 12 12 0 8 1 pvpl 32 1745070 0 1722874 565 348 217 336 0 265 29 pmappl 200 5236 0 5170 4 0 4 4 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 1054 0 417 19 0 19 19 0 8 0