uvm_fault(0xffffffff825597b0, 0xffff800000bb4074, 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, 0xffff800000bb4074, 0, 1) -> e rtable_satoplen(2,ffff800000bb3f78) at rtable_satoplen+0x150 sys/net/rtable.c:894 end trace frame: 0xffff8000155426b0, count: 0 ddb> trace rtable_satoplen(2,ffff800000bb3f78) at rtable_satoplen+0x150 sys/net/rtable.c:894 rtable_lookup(6,fffffd80299b7720,ffff800000bb3f78,ffff800000bb3f58,4) at rtable_lookup+0xe0 sys/net/rtable.c:391 rtrequest_delete(ffff800015542750,4,ffff800000b7d000,ffff800015542820,6) at rtrequest_delete+0xe3 sys/net/route.c:775 rt_ifa_del(ffff800000bb3f00,800100,ffff800000bb3f58,6) at rt_ifa_del+0x3c3 sys/net/route.c:1191 in_purgeaddr(ffff800000bb3f00) at in_purgeaddr+0xc6 in_remove_prefix sys/netinet/in.c:738 [inline] in_purgeaddr(ffff800000bb3f00) at in_purgeaddr+0xc6 in_ifscrub sys/netinet/in.c:562 [inline] in_purgeaddr(ffff800000bb3f00) at in_purgeaddr+0xc6 sys/netinet/in.c:678 in_ifinit(ffff800000b7d000,ffff800000bb3f00,ffff800015542ba0,1) at in_ifinit+0x234 sys/netinet/in.c:664 in_ioctl_change_ifaddr(8040691a,ffff800015542b90,ffff800000b7d000,1) at in_ioctl_change_ifaddr+0x5de sys/netinet/in.c:452 in_ioctl(8040691a,ffff800015542b90,ffff800000b7d000,1) at in_ioctl+0x205 sys/netinet/in.c:234 ifioctl(fffffd8039565c58,8040691a,ffff800015542b90,ffff8000ffff2018) at ifioctl+0xb34 sys/net/if.c:2202 sys_ioctl(ffff8000ffff2018,ffff800015542ca8,ffff800015542cf0) at sys_ioctl+0x5b9 syscall(ffff800015542d70) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,22eab9ec010) at Xsyscall+0x128 end of kernel end trace frame: 0x231a783fc30, count: -12 ddb> show registers rdi 0 rsi 0xfd rbp 0xffff800015542610 rbx 0xffffffffffffff07 rdx 0xffff800000bb3f7c rcx 0xffff800000bb4075 rax 0xffff800000bb4075 r8 0x4 r9 0x5 r10 0xdb3132ba8f811db8 r11 0x1ea4fa3fef262763 r12 0 r13 0xffff800000bb4075 r14 0xffffffff824beb60 inetdomain r15 0x4 rip 0xffffffff81800560 rtable_satoplen+0x150 cs 0x8 rflags 0x10283 __ALIGN_SIZE+0xf283 rsp 0xffff8000155425c0 ss 0x10 rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb> show proc PROC (syz-executor.1) pid=320594 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff2290,0xffffffff825a6d38 process=0xffff8000ffff6a30 user=0xffff80001553d000, vmspace=0xfffffd803f013000 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 58897 39203 81675 0 2 0 syz-executor.1 *58897 320594 81675 0 7 0x4000000 syz-executor.1 81675 5079 2776 0 3 0x82 nanosleep syz-executor.1 5581 440876 0 0 3 0x14200 acct acct 60724 490117 2776 0 2 0x2 syz-executor.0 67806 59410 0 0 3 0x14200 bored sosplice 2776 239357 93475 0 3 0x82 thrsleep syz-fuzzer 2776 492309 93475 0 3 0x4000082 nanosleep syz-fuzzer 2776 387230 93475 0 3 0x4000082 kqread syz-fuzzer 2776 492829 93475 0 3 0x4000082 thrsleep syz-fuzzer 2776 23482 93475 0 3 0x4000082 thrsleep syz-fuzzer 2776 124293 93475 0 3 0x4000082 thrsleep syz-fuzzer 2776 373529 93475 0 3 0x4000082 thrsleep syz-fuzzer 93475 189153 80340 0 3 0x10008a pause ksh 80340 234348 61159 0 3 0x92 select sshd 50271 26995 1 0 3 0x100083 ttyin getty 61159 425454 1 0 3 0x80 select sshd 29151 384917 8593 73 2 0x100090 syslogd 8593 3770 1 0 3 0x100082 netio syslogd 10504 504253 1 77 3 0x100090 poll dhclient 77634 146939 1 0 3 0x80 poll dhclient 62657 242700 0 0 2 0x14200 zerothread 10525 437035 0 0 3 0x14200 aiodoned aiodoned 23705 235420 0 0 3 0x14200 syncer update 82946 413677 0 0 3 0x14200 cleaner cleaner 55690 391753 0 0 3 0x14200 reaper reaper 80631 61064 0 0 3 0x14200 pgdaemon pagedaemon 81808 308794 0 0 3 0x14200 bored crynlk 70071 274692 0 0 3 0x14200 bored crypto 20927 285235 0 0 3 0x40014200 acpi0 acpi0 16081 508690 0 0 3 0x14200 bored softnet 74827 366332 0 0 3 0x14200 bored systqmp 47697 271747 0 0 3 0x14200 bored systq 5701 381463 0 0 3 0x40014200 bored softclock 77479 405284 0 0 3 0x40014200 idle0 19771 115533 0 0 3 0x14200 bored smr 1 428711 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 9606 6383K 7527K 78643K 17237 0 0 pcb 13 12K 14K 78643K 5450 0 0 rtable 92 12K 13K 78643K 1897 0 0 ifaddr 87 17K 19K 78643K 470 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 231 0 0 iov 0 0K 20K 78643K 644 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1224 77K 78K 78643K 3595 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 3 5K 5K 78643K 37 0 0 VM map 53 13K 13K 78643K 63 0 0 sem 12 0K 1K 78643K 535 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 5 13K 25K 78643K 2806 0 0 sigio 0 0K 0K 78643K 69 0 0 proc 49 38K 63K 78643K 1121 0 0 subproc 32 2K 2K 78643K 255 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 230 0 0 in_multi 12 0K 2K 78643K 377 0 0 ether_multi 1 0K 0K 78643K 25 0 0 mrt 0 0K 0K 78643K 27 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 663 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 184 445K 450K 78643K 7941 0 0 UVM aobj 130 4K 4K 78643K 138 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 4K 78643K 7902 0 0 NDP 23 0K 1K 78643K 161 0 0 temp 247 3541K 4181K 78643K 124061 0 0 kqueue 0 0K 0K 78643K 23 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 73 0 69 1 0 1 1 0 8 0 rtpcb 80 948 0 946 1 0 1 1 0 8 0 rtentry 112 399 0 372 2 0 2 2 0 8 0 unpcb 120 1512 0 1501 3 2 1 2 0 8 0 syncache 264 16 0 16 6 6 0 1 0 8 0 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 78 0 78 5 5 0 1 0 8 0 tcpcb 544 1295 0 1291 18 17 1 13 0 8 0 ipq 40 19 0 19 9 9 0 1 0 8 0 ipqe 40 386 0 386 9 9 0 1 0 8 0 inpcb 280 12287 0 12279 38 35 3 13 0 8 2 rttmr 72 12 0 11 7 6 1 1 0 8 0 ip6q 72 3 0 3 2 2 0 1 0 8 0 ip6af 40 9 0 9 2 2 0 1 0 8 0 nd6 48 53 0 53 3 2 1 1 0 8 1 pkpcb 40 12 0 12 4 4 0 1 0 8 0 swfcl 56 4 0 0 1 0 1 1 0 8 0 ppxss 1128 49 0 49 10 9 1 1 0 8 1 art_heap8 4096 12 0 11 7 6 1 3 0 8 0 art_heap4 256 1867 0 1712 28 13 15 16 0 8 1 art_table 32 1879 0 1723 3 1 2 3 0 8 0 art_node 16 397 0 372 1 0 1 1 0 8 0 sysvmsgpl 40 27 0 22 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 531 0 521 1 0 1 1 0 8 0 shmpl 112 136 0 8 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 5666 0 4251 46 0 46 46 0 8 0 ffsino 240 5666 0 4251 85 1 84 84 0 8 0 nchpl 144 10087 0 9633 60 41 19 60 0 8 0 uvmvnodes 72 7423 0 0 135 0 135 135 0 8 0 vnodes 208 7423 0 0 391 0 391 391 0 8 0 namei 1024 33342 0 33342 5 4 1 1 0 8 1 vcpupl 1984 51 0 0 7 0 7 7 0 8 0 vmpool 520 61 0 10 4 0 4 4 0 8 0 scsiplug 64 4 0 4 3 3 0 1 0 8 0 scxspl 192 35591 0 35591 17 15 2 6 0 8 2 plimitpl 152 267 0 260 1 0 1 1 0 8 0 sigapl 432 2938 0 2925 2 0 2 2 0 8 0 futexpl 56 92607 0 92607 5 4 1 1 0 8 1 knotepl 112 743 0 724 5 4 1 3 0 8 0 kqueuepl 104 899 0 897 4 3 1 4 0 8 0 pipepl 112 1808 0 1789 6 5 1 2 0 8 0 fdescpl 424 2939 0 2925 2 0 2 2 0 8 0 filepl 120 31007 0 30910 29 24 5 11 0 8 2 lockfpl 104 1147 0 1146 1 0 1 1 0 8 0 lockfspl 48 373 0 372 1 0 1 1 0 8 0 sessionpl 112 30 0 20 1 0 1 1 0 8 0 pgrppl 48 50 0 40 1 0 1 1 0 8 0 ucredpl 96 3127 0 3119 1 0 1 1 0 8 0 zombiepl 144 2926 0 2926 2 1 1 1 0 8 1 processpl 864 2956 0 2926 4 0 4 4 0 8 0 procpl 632 6453 0 6416 5 1 4 5 0 8 0 sosppl 128 48 0 48 11 10 1 1 0 8 1 sockpl 384 14904 0 14883 56 50 6 21 0 8 3 mcl64k 65536 518 0 518 38 37 1 32 0 8 1 mcl16k 16384 27 0 27 10 10 0 1 0 8 0 mcl12k 12288 68 0 68 8 7 1 1 0 8 1 mcl9k 9216 52 0 52 9 8 1 1 0 8 1 mcl8k 8192 129 0 129 9 8 1 1 0 8 1 mcl4k 4096 357 0 356 7 6 1 1 0 8 0 mcl2k2 2112 25 0 25 10 9 1 1 0 8 1 mcl2k 2048 72415 0 72373 21 14 7 13 0 8 1 mtagpl 80 170 0 170 2 1 1 1 0 8 1 mbufpl 256 158086 0 158029 111 93 18 33 0 8 8 bufpl 256 18522 0 10754 486 0 486 486 0 8 0 anonpl 16 419328 0 398021 195 92 103 103 0 62 15 amapchunkpl 152 15856 0 15716 58 47 11 15 0 158 4 amappl16 192 19648 0 18435 187 118 69 72 0 8 8 amappl15 184 296 0 295 1 0 1 1 0 8 0 amappl14 176 587 0 583 1 0 1 1 0 8 0 amappl13 168 506 0 502 1 0 1 1 0 8 0 amappl12 160 334 0 332 1 0 1 1 0 8 0 amappl11 152 561 0 550 1 0 1 1 0 8 0 amappl10 144 315 0 313 1 0 1 1 0 8 0 amappl9 136 1108 0 1101 1 0 1 1 0 8 0 amappl8 128 698 0 658 2 0 2 2 0 8 0 amappl7 120 374 0 368 1 0 1 1 0 8 0 amappl6 112 546 0 537 1 0 1 1 0 8 0 amappl5 104 595 0 585 1 0 1 1 0 8 0 amappl4 96 3203 0 3175 1 0 1 1 0 8 0 amappl3 88 461 0 454 1 0 1 1 0 8 0 amappl2 80 22644 0 22559 3 1 2 3 0 8 0 amappl1 72 62848 0 62436 26 17 9 20 0 8 0 amappl 80 6943 0 6879 3 1 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 64 137 0 8 3 0 3 3 0 8 0 uaddrrnd 24 3000 0 2925 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3000 0 2925 1 0 1 1 0 8 0 vmmpekpl 168 21319 0 21279 2 0 2 2 0 8 0 vmmpepl 168 365496 0 363035 321 178 143 148 0 357 30 vmsppl 272 2938 0 2925 2 1 1 2 0 8 0 pdppl 4096 6006 0 5921 13 2 11 12 0 8 0 pvpl 32 1027221 0 1004111 379 155 224 258 0 265 37 pmappl 200 2999 0 2935 5 1 4 4 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 845 0 214 19 0 19 19 0 8 0