uvm_fault(0xffffffff82557e48, 0xffff800000b89074, 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(0xffffffff82557e48, 0xffff800000b89074, 0, 1) -> e rtable_satoplen(2,ffff800000b88f78) at rtable_satoplen+0x150 sys/net/rtable.c:894 end trace frame: 0xffff80001491d9d0, count: 0 ddb> trace rtable_satoplen(2,ffff800000b88f78) at rtable_satoplen+0x150 sys/net/rtable.c:894 rtable_lookup(0,fffffd803cebd820,ffff800000b88f78,ffff800000b88f58,4) at rtable_lookup+0xe0 sys/net/rtable.c:391 rtrequest_delete(ffff80001491da70,4,ffff800000ae7000,ffff80001491db40,0) at rtrequest_delete+0xe3 sys/net/route.c:775 rt_ifa_del(ffff800000b88f00,800100,ffff800000b88f58,0) at rt_ifa_del+0x3c3 sys/net/route.c:1191 in_purgeaddr(ffff800000b88f00) at in_purgeaddr+0xc6 in_remove_prefix sys/netinet/in.c:738 [inline] in_purgeaddr(ffff800000b88f00) at in_purgeaddr+0xc6 in_ifscrub sys/netinet/in.c:562 [inline] in_purgeaddr(ffff800000b88f00) at in_purgeaddr+0xc6 sys/netinet/in.c:678 in_ifinit(ffff800000ae7000,ffff800000b88f00,ffff80001491dec0,1) at in_ifinit+0x234 sys/netinet/in.c:664 in_ioctl_change_ifaddr(8040691a,ffff80001491deb0,ffff800000ae7000,1) at in_ioctl_change_ifaddr+0x5de sys/netinet/in.c:452 in_ioctl(8040691a,ffff80001491deb0,ffff800000ae7000,1) at in_ioctl+0x205 sys/netinet/in.c:234 ifioctl(fffffd802e2b7988,8040691a,ffff80001491deb0,ffff8000ffff2ee8) at ifioctl+0xb34 sys/net/if.c:2202 sys_ioctl(ffff8000ffff2ee8,ffff80001491dfc8,ffff80001491e010) at sys_ioctl+0x5b9 syscall(ffff80001491e090) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,ee29c1a1010) at Xsyscall+0x128 end of kernel end trace frame: 0xee58375e720, count: -12 ddb> show registers rdi 0 rsi 0xfd rbp 0xffff80001491d930 rbx 0xffffffffffffff07 rdx 0xffff800000b88f7c rcx 0xffff800000b89075 rax 0xffff800000b89075 r8 0x4 r9 0x5 r10 0xba88eff59e5ad706 r11 0xbaa0df56868cc605 r12 0 r13 0xffff800000b89075 r14 0xffffffff824ae810 inetdomain r15 0x4 rip 0xffffffff815d6f90 rtable_satoplen+0x150 cs 0x8 rflags 0x10283 __ALIGN_SIZE+0xf283 rsp 0xffff80001491d8e0 ss 0x10 rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb> show proc PROC (syz-executor.1) pid=468499 stat=onproc flags process=0 proc=4000000 pri=79, usrpri=79, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff38c8,0xffff8000ffff3660 process=0xffff8000ffff6a30 user=0xffff800014919000, vmspace=0xfffffd803f014330 estcpu=29, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 68038 492339 19597 0 2 0 syz-executor.1 *68038 468499 19597 0 7 0x4000000 syz-executor.1 81497 100152 87091 0 2 0 syz-executor.0 81497 485624 87091 0 3 0x4000080 netio syz-executor.0 81497 146099 87091 0 3 0x4000080 fsleep syz-executor.0 87091 295601 17817 0 3 0x82 nanosleep syz-executor.0 19597 402537 17817 0 3 0x82 nanosleep syz-executor.1 94430 391786 0 0 3 0x14200 bored sosplice 17817 508251 22534 0 3 0x82 thrsleep syz-fuzzer 17817 444446 22534 0 3 0x4000082 thrsleep syz-fuzzer 17817 183714 22534 0 3 0x4000082 thrsleep syz-fuzzer 17817 407225 22534 0 3 0x4000082 thrsleep syz-fuzzer 17817 298891 22534 0 3 0x4000082 thrsleep syz-fuzzer 17817 517655 22534 0 3 0x4000082 thrsleep syz-fuzzer 17817 369369 22534 0 3 0x4000082 thrsleep syz-fuzzer 17817 273248 22534 0 3 0x4000082 kqread syz-fuzzer 22534 193960 14822 0 3 0x10008a pause ksh 14822 37156 11225 0 3 0x92 select sshd 50339 163829 1 0 3 0x100083 ttyin getty 11225 10925 1 0 3 0x80 select sshd 66153 165124 60187 73 2 0x100090 syslogd 60187 31645 1 0 3 0x100082 netio syslogd 28763 210546 1 77 3 0x100090 poll dhclient 78962 249157 1 0 3 0x80 poll dhclient 97435 443711 0 0 2 0x14200 zerothread 74223 372137 0 0 3 0x14200 aiodoned aiodoned 25261 381123 0 0 3 0x14200 syncer update 10458 496749 0 0 3 0x14200 cleaner cleaner 42296 427047 0 0 3 0x14200 reaper reaper 99425 14729 0 0 3 0x14200 pgdaemon pagedaemon 50791 217646 0 0 3 0x14200 bored crynlk 14342 380077 0 0 3 0x14200 bored crypto 86942 344320 0 0 3 0x40014200 acpi0 acpi0 90071 2257 0 0 3 0x14200 bored softnet 99254 148434 0 0 3 0x14200 bored systqmp 82494 464151 0 0 3 0x14200 bored systq 78798 281871 0 0 3 0x40014200 bored softclock 58873 108095 0 0 3 0x40014200 idle0 66507 360815 0 0 3 0x14200 bored smr 1 176977 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 9564 6386K 7794K 78643K 17608 0 0 pcb 30 12K 13K 78643K 4657 0 0 rtable 95 11K 12K 78643K 1547 0 0 ifaddr 83 17K 18K 78643K 411 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 197 0 0 iov 0 0K 20K 78643K 537 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1215 76K 77K 78643K 3641 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 36 0 0 VM map 23 5K 6K 78643K 36 0 0 sem 12 0K 1K 78643K 760 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 6 17K 25K 78643K 2533 0 0 sigio 0 0K 0K 78643K 46 0 0 proc 49 38K 63K 78643K 986 0 0 subproc 32 2K 2K 78643K 206 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 229 0 0 in_multi 19 1K 2K 78643K 301 0 0 ether_multi 1 0K 0K 78643K 21 0 0 mrt 0 0K 0K 78643K 16 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 545 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 141 201K 211K 78643K 7165 0 0 UVM aobj 130 5K 5K 78643K 148 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 598 0 0 NDP 19 0K 0K 78643K 133 0 0 temp 219 3540K 4180K 78643K 76030 0 0 kqueue 0 0K 0K 78643K 16 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 55 0 50 1 0 1 1 0 8 0 rtpcb 80 258 0 256 1 0 1 1 0 8 0 rtentry 112 293 0 260 2 0 2 2 0 8 0 unpcb 120 1363 0 1351 1 0 1 1 0 8 0 syncache 264 13 0 13 4 3 1 1 0 8 1 sackhl 24 3 0 3 2 2 0 1 0 8 0 tcpqe 32 298 0 298 3 3 0 1 0 8 0 tcpcb 544 1419 0 1415 30 29 1 15 0 8 0 ipq 40 17 0 17 9 8 1 1 0 8 1 ipqe 40 379 0 379 9 8 1 1 0 8 1 inpcb 280 11459 0 11417 29 25 4 10 0 8 1 rttmr 72 4 0 4 3 2 1 1 0 8 1 nd6 48 38 0 37 1 0 1 1 0 8 0 pkpcb 40 14 0 14 5 4 1 1 0 8 1 swfcl 56 2 0 0 1 0 1 1 0 8 0 ppxss 1128 33 0 33 11 10 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1219 0 1053 24 12 12 15 0 8 0 art_table 32 1220 0 1053 2 0 2 2 0 8 0 art_node 16 288 0 258 1 0 1 1 0 8 0 sysvmsgpl 40 69 0 29 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 758 0 748 1 0 1 1 0 8 0 shmpl 112 146 0 18 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 5233 0 3840 46 0 46 46 0 8 0 ffsino 240 5233 0 3840 83 0 83 83 0 8 0 nchpl 144 9075 0 8615 60 41 19 60 0 8 0 uvmvnodes 72 7107 0 0 130 0 130 130 0 8 0 vnodes 208 7107 0 0 375 0 375 375 0 8 0 namei 1024 29248 0 29248 1 0 1 1 0 8 1 vcpupl 1984 21 0 0 3 0 3 3 0 8 0 vmpool 520 34 0 13 2 0 2 2 0 8 0 scsiplug 64 4 0 4 4 4 0 1 0 8 0 scxspl 192 30838 0 30838 27 25 2 7 0 8 2 plimitpl 152 221 0 214 1 0 1 1 0 8 0 sigapl 432 2674 0 2660 2 0 2 2 0 8 0 futexpl 56 77595 0 77594 1 0 1 1 0 8 0 knotepl 112 682 0 663 2 1 1 2 0 8 0 kqueuepl 104 904 0 900 7 6 1 4 0 8 0 pipepl 112 1546 0 1527 4 3 1 2 0 8 0 fdescpl 424 2675 0 2660 2 0 2 2 0 8 0 filepl 120 27671 0 27531 23 18 5 11 0 8 0 lockfpl 104 1037 0 1035 1 0 1 1 0 8 0 lockfspl 48 296 0 294 1 0 1 1 0 8 0 sessionpl 112 27 0 17 1 0 1 1 0 8 0 pgrppl 48 51 0 41 1 0 1 1 0 8 0 ucredpl 96 2825 0 2818 1 0 1 1 0 8 0 zombiepl 144 2664 0 2664 1 0 1 1 0 8 1 processpl 864 2694 0 2664 4 0 4 4 0 8 0 procpl 632 5884 0 5844 6 2 4 5 0 8 0 sosppl 128 39 0 39 10 10 0 1 0 8 0 sockpl 384 13245 0 13189 43 37 6 14 0 8 0 mcl64k 65536 703 0 703 67 66 1 33 0 8 1 mcl16k 16384 24 0 24 8 7 1 1 0 8 1 mcl12k 12288 72 0 72 7 6 1 1 0 8 1 mcl9k 9216 30 0 30 8 7 1 1 0 8 1 mcl8k 8192 125 0 125 4 3 1 1 0 8 1 mcl4k 4096 274 0 274 3 2 1 1 0 8 1 mcl2k2 2112 25 0 25 11 10 1 1 0 8 1 mcl2k 2048 70558 0 70512 19 12 7 15 0 8 0 mtagpl 80 154 0 96 4 2 2 2 0 8 0 mbufpl 256 134888 0 134630 112 84 28 39 0 8 11 bufpl 256 17349 0 9057 519 0 519 519 0 8 0 anonpl 16 338815 0 319553 176 82 94 95 0 62 15 amapchunkpl 152 14431 0 14300 46 33 13 19 0 158 7 amappl16 192 15924 0 14825 157 90 67 68 0 8 11 amappl15 184 1700 0 1697 1 0 1 1 0 8 0 amappl14 176 529 0 522 1 0 1 1 0 8 0 amappl13 168 161 0 161 4 4 0 1 0 8 0 amappl12 160 225 0 221 1 0 1 1 0 8 0 amappl11 152 127 0 115 1 0 1 1 0 8 0 amappl10 144 9 0 8 1 0 1 1 0 8 0 amappl9 136 1117 0 1111 1 0 1 1 0 8 0 amappl8 128 713 0 671 2 0 2 2 0 8 0 amappl7 120 92 0 86 1 0 1 1 0 8 0 amappl6 112 138 0 127 1 0 1 1 0 8 0 amappl5 104 457 0 446 1 0 1 1 0 8 0 amappl4 96 2736 0 2705 1 0 1 1 0 8 0 amappl3 88 978 0 971 1 0 1 1 0 8 0 amappl2 80 21067 0 20985 3 1 2 3 0 8 0 amappl1 72 57439 0 57004 25 15 10 20 0 8 0 amappl 80 6303 0 6251 5 3 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 17 0 17 1 1 0 1 0 8 0 aobjpl 64 147 0 18 3 0 3 3 0 8 0 uaddrrnd 24 2709 0 2660 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2709 0 2660 1 0 1 1 0 8 0 vmmpekpl 168 19738 0 19703 2 0 2 2 0 8 0 vmmpepl 168 330640 0 328303 255 142 113 140 0 357 9 vmsppl 272 2674 0 2660 2 1 1 2 0 8 0 pdppl 4096 5424 0 5367 9 1 8 8 0 8 0 pvpl 32 948706 0 926226 428 143 285 294 0 265 102 pmappl 200 2708 0 2673 2 0 2 2 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 887 0 219 20 0 20 20 0 8 0