uvm_fault(0xffffffff82542bb0, 0xffff800000b69073, 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(0xffffffff82542bb0, 0xffff800000b69073, 0, 1) -> e rtable_satoplen(2,ffff800000b68f78) at rtable_satoplen+0x150 sys/net/rtable.c:894 end trace frame: 0xffff800015932910, count: 0 ddb> trace rtable_satoplen(2,ffff800000b68f78) at rtable_satoplen+0x150 sys/net/rtable.c:894 rtable_lookup(0,fffffd8038c1e320,ffff800000b68f78,ffff800000b68f58,4) at rtable_lookup+0xe0 sys/net/rtable.c:391 rtrequest_delete(ffff8000159329b0,4,ffff800000b5c000,ffff800015932a80,0) at rtrequest_delete+0xe3 sys/net/route.c:775 rt_ifa_del(ffff800000b68f00,800100,ffff800000b68f58,0) at rt_ifa_del+0x3c3 sys/net/route.c:1191 in_ioctl_change_ifaddr(8040691a,ffff800015932d10,ffff800000b5c000,1) at in_ioctl_change_ifaddr+0x355 in_remove_prefix sys/netinet/in.c:738 [inline] in_ioctl_change_ifaddr(8040691a,ffff800015932d10,ffff800000b5c000,1) at in_ioctl_change_ifaddr+0x355 in_ifscrub sys/netinet/in.c:562 [inline] in_ioctl_change_ifaddr(8040691a,ffff800015932d10,ffff800000b5c000,1) at in_ioctl_change_ifaddr+0x355 sys/netinet/in.c:432 in_ioctl(8040691a,ffff800015932d10,ffff800000b5c000,1) at in_ioctl+0x205 sys/netinet/in.c:234 ifioctl(fffffd802cfbb060,8040691a,ffff800015932d10,ffff800014914290) at ifioctl+0xb34 sys/net/if.c:2202 sys_ioctl(ffff800014914290,ffff800015932e28,ffff800015932e70) at sys_ioctl+0x5b9 syscall(ffff800015932ef0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,fe2d0d75010) at Xsyscall+0x128 end of kernel end trace frame: 0xfe5210676b0, count: -10 ddb> show registers rdi 0 rsi 0xfc rbp 0xffff800015932870 rbx 0xffffffffffffff08 rdx 0xffff800000b68f7c rcx 0xffff800000b69074 rax 0xffff800000b69074 r8 0x4 r9 0x7 r10 0x694224bc64cfbd3c r11 0xd942afcde0a6a882 r12 0 r13 0xffff800000b69074 r14 0xffffffff82480c50 inetdomain r15 0x4 rip 0xffffffff814d6410 rtable_satoplen+0x150 cs 0x8 rflags 0x10283 __ALIGN_SIZE+0xf283 rsp 0xffff800015932820 ss 0x10 rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb> show proc PROC (syz-executor.0) pid=280135 stat=onproc flags process=0 proc=4000000 pri=82, usrpri=82, nice=20 forw=0xffffffffffffffff, list=0xffff8000149153d8,0xffffffff825545b0 process=0xffff8000ffff7b10 user=0xffff80001592d000, vmspace=0xfffffd803f013bb0 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 55323 169659 65524 0 2 0 syz-executor.0 *55323 280135 65524 0 7 0x4000000 syz-executor.0 44249 230796 56526 0 3 0x82 nanosleep syz-executor.1 522 242913 0 0 3 0x14200 acct acct 65524 410274 56526 0 3 0x82 nanosleep syz-executor.0 60268 123618 1 0 3 0x100083 ttyin getty 35770 288773 0 0 3 0x14200 bored sosplice 56526 36132 87699 0 3 0x82 thrsleep syz-fuzzer 56526 167365 87699 0 3 0x4000082 nanosleep syz-fuzzer 56526 214455 87699 0 3 0x4000082 thrsleep syz-fuzzer 56526 436186 87699 0 3 0x4000082 thrsleep syz-fuzzer 56526 462504 87699 0 3 0x4000082 thrsleep syz-fuzzer 56526 416786 87699 0 3 0x4000082 kqread syz-fuzzer 56526 240446 87699 0 3 0x4000082 thrsleep syz-fuzzer 87699 483106 3042 0 3 0x10008a pause ksh 3042 204171 29181 0 3 0x92 select sshd 29181 378622 1 0 3 0x80 select sshd 16509 60503 3767 73 3 0x100090 kqread syslogd 3767 252253 1 0 3 0x100082 netio syslogd 86863 48164 1 77 3 0x100090 poll dhclient 92652 165827 1 0 3 0x80 poll dhclient 70462 274243 0 0 2 0x14200 zerothread 61322 260476 0 0 3 0x14200 aiodoned aiodoned 57345 332486 0 0 3 0x14200 syncer update 99817 300096 0 0 3 0x14200 cleaner cleaner 27037 219428 0 0 3 0x14200 reaper reaper 32160 247490 0 0 3 0x14200 pgdaemon pagedaemon 50750 517713 0 0 3 0x14200 bored crynlk 33436 119847 0 0 3 0x14200 bored crypto 3851 485713 0 0 3 0x40014200 acpi0 acpi0 83455 384543 0 0 3 0x14200 bored softnet 41673 45179 0 0 3 0x14200 bored systqmp 52076 338946 0 0 3 0x14200 bored systq 2792 171677 0 0 3 0x40014200 bored softclock 85710 374267 0 0 3 0x40014200 idle0 22708 316672 0 0 3 0x14200 bored smr 1 493468 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 9573 6373K 7386K 78643K 29257 0 0 pcb 13 8K 8K 78643K 1567 0 0 rtable 115 12K 13K 78643K 5158 0 0 ifaddr 78 18K 20K 78643K 888 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 293 0 0 iov 0 0K 18K 78643K 769 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1223 77K 78K 78643K 8749 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 9K 78643K 125 0 0 VM map 2 0K 0K 78643K 16 0 0 sem 12 1K 1K 78643K 988 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 5 13K 25K 78643K 8205 0 0 sigio 1 0K 0K 78643K 94 0 0 proc 50 38K 63K 78643K 2672 0 0 subproc 32 2K 2K 78643K 735 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 802 0 0 in_multi 34 2K 2K 78643K 665 0 0 ether_multi 1 0K 0K 78643K 35 0 0 mrt 0 0K 0K 78643K 19 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 150 662K 662K 78643K 150 0 0 exec 0 0K 1K 78643K 1281 0 0 pfkey data 0 0K 4K 78643K 6 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 107 22K 30K 78643K 20454 0 0 UVM aobj 130 4K 4K 78643K 225 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 1055 0 0 NDP 18 0K 0K 78643K 290 0 0 temp 212 3536K 4171K 78643K 146445 0 0 kqueue 0 0K 0K 78643K 78 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 64 385 0 379 1 0 1 1 0 8 0 rtpcb 80 2096 0 2094 1 0 1 1 0 8 0 rtentry 112 923 0 882 2 0 2 2 0 8 0 unpcb 120 2883 0 2869 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 sackhl 24 3 0 3 3 3 0 1 0 8 0 tcpqe 32 5813 0 5813 1 1 0 1 0 8 0 tcpcb 544 1833 0 1829 1 0 1 1 0 8 0 ipq 40 8 0 8 4 4 0 1 0 8 0 ipqe 40 16 0 16 4 4 0 1 0 8 0 inpcb 280 6874 0 6866 29 28 1 4 0 8 0 rttmr 72 1 0 1 1 1 0 1 0 8 0 ip6q 72 1 0 1 1 1 0 1 0 8 0 nd6 48 76 0 72 2 1 1 1 0 8 0 pkpcb 40 40 0 40 13 13 0 1 0 8 0 swfcl 56 2 0 0 1 0 1 1 0 8 0 ppxss 1128 113 0 113 32 32 0 1 0 8 0 art_heap8 4096 4 0 3 2 1 1 2 0 8 0 art_heap4 256 2227 0 2011 26 12 14 16 0 8 0 art_table 32 2231 0 2014 3 1 2 3 0 8 0 art_node 16 905 0 869 1 0 1 1 0 8 0 sysvmsgpl 40 15 0 15 2 2 0 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 986 0 976 1 0 1 1 0 8 0 shmpl 112 223 0 95 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 13393 0 11990 46 0 46 46 0 8 0 ffsino 240 13393 0 11990 83 0 83 83 0 8 0 nchpl 144 29745 0 28134 62 0 62 62 0 8 0 uvmvnodes 72 7279 0 0 133 0 133 133 0 8 0 vnodes 208 7279 0 0 384 0 384 384 0 8 0 namei 1024 96485 0 96485 6 5 1 1 0 8 1 vmpool 520 14 0 14 6 6 0 1 0 8 0 scsiplug 64 8 0 8 8 8 0 1 0 8 0 scxspl 192 79785 0 79785 35 34 1 7 0 8 1 plimitpl 152 601 0 594 1 0 1 1 0 8 0 sigapl 432 8254 0 8241 2 0 2 2 0 8 0 futexpl 56 177187 0 177187 4 3 1 1 0 8 1 knotepl 112 2271 0 2252 6 5 1 3 0 8 0 kqueuepl 104 1966 0 1964 1 0 1 1 0 8 0 pipepl 112 4212 0 4193 13 12 1 2 0 8 0 fdescpl 424 8255 0 8241 2 0 2 2 0 8 0 filepl 120 66188 0 66092 15 11 4 5 0 8 0 lockfpl 104 2241 0 2240 1 0 1 1 0 8 0 lockfspl 48 743 0 742 1 0 1 1 0 8 0 sessionpl 112 59 0 49 1 0 1 1 0 8 0 pgrppl 48 146 0 136 1 0 1 1 0 8 0 ucredpl 96 9145 0 9138 1 0 1 1 0 8 0 zombiepl 144 8247 0 8246 3 2 1 1 0 8 0 processpl 864 8277 0 8246 4 0 4 4 0 8 0 procpl 632 17868 0 17830 5 1 4 5 0 8 0 sosppl 128 83 0 83 22 22 0 1 0 8 0 sockpl 384 12001 0 11977 36 32 4 6 0 8 0 mcl64k 65536 463 0 463 59 58 1 32 0 8 1 mcl16k 16384 33 0 33 24 24 0 1 0 8 0 mcl12k 12288 137 0 137 25 24 1 1 0 8 1 mcl9k 9216 92 0 92 32 32 0 1 0 8 0 mcl8k 8192 194 0 194 19 18 1 1 0 8 1 mcl4k 4096 591 0 591 5 4 1 1 0 8 1 mcl2k2 2112 54 0 54 25 25 0 1 0 8 0 mcl2k 2048 67703 0 67661 36 30 6 19 0 8 0 mtagpl 80 236 0 226 8 7 1 1 0 8 0 mbufpl 256 166560 0 166389 68 55 13 22 0 8 1 bufpl 256 26785 0 19511 456 1 455 456 0 8 0 anonpl 16 800911 0 786670 268 205 63 76 0 62 0 amapchunkpl 152 38053 0 37949 108 102 6 29 0 158 0 amappl16 192 42595 0 41772 329 285 44 55 0 8 2 amappl15 184 1643 0 1642 5 4 1 1 0 8 0 amappl14 176 1684 0 1681 2 1 1 1 0 8 0 amappl13 168 1377 0 1376 1 0 1 1 0 8 0 amappl12 160 629 0 626 1 0 1 1 0 8 0 amappl11 152 832 0 818 1 0 1 1 0 8 0 amappl10 144 1346 0 1346 7 7 0 1 0 8 0 amappl9 136 1963 0 1957 1 0 1 1 0 8 0 amappl8 128 1439 0 1398 2 0 2 2 0 8 0 amappl7 120 1540 0 1533 1 0 1 1 0 8 0 amappl6 112 726 0 715 1 0 1 1 0 8 0 amappl5 104 1058 0 1048 1 0 1 1 0 8 0 amappl4 96 9153 0 9122 1 0 1 1 0 8 0 amappl3 88 1675 0 1669 1 0 1 1 0 8 0 amappl2 80 64061 0 63995 4 2 2 3 0 8 0 amappl1 72 157374 0 156976 27 18 9 20 0 8 0 amappl 80 18722 0 18687 2 1 1 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 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 64 224 0 95 3 0 3 3 0 8 0 uaddrrnd 24 8269 0 8241 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 8269 0 8241 1 0 1 1 0 8 0 vmmpekpl 168 49085 0 49059 2 0 2 2 0 8 0 vmmpepl 168 975497 0 973622 507 389 118 124 0 357 30 vmsppl 272 8254 0 8241 6 4 2 2 0 8 1 pdppl 4096 16544 0 16510 6 1 5 6 0 8 0 pvpl 32 2296923 0 2279558 615 458 157 290 0 265 10 pmappl 200 8268 0 8255 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 802 0 215 18 1 17 18 0 8 0