login: uvm_fault(0xffffffff82530820, 0xffff800000a75074, 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(0xffffffff82530820, 0xffff800000a75074, 0, 1) -> e rtable_satoplen(2,ffff800000a74f78) at rtable_satoplen+0x150 sys/net/rtable.c:894 end trace frame: 0xffff8000159436d0, count: 0 ddb> trace rtable_satoplen(2,ffff800000a74f78) at rtable_satoplen+0x150 sys/net/rtable.c:894 rtable_lookup(0,fffffd803d5e6b20,ffff800000a74f78,ffff800000a74f58,4) at rtable_lookup+0xe0 sys/net/rtable.c:391 rtrequest_delete(ffff800015943770,4,ffff800000a6e800,ffff800015943840,0) at rtrequest_delete+0xe3 sys/net/route.c:775 rt_ifa_del(ffff800000a74f00,800100,ffff800000a74f58,0) at rt_ifa_del+0x3c3 sys/net/route.c:1191 in_purgeaddr(ffff800000a74f00) at in_purgeaddr+0xc6 in_remove_prefix sys/netinet/in.c:738 [inline] in_purgeaddr(ffff800000a74f00) at in_purgeaddr+0xc6 in_ifscrub sys/netinet/in.c:562 [inline] in_purgeaddr(ffff800000a74f00) at in_purgeaddr+0xc6 sys/netinet/in.c:678 in_ifinit(ffff800000a6e800,ffff800000a74f00,ffff800015943bc0,1) at in_ifinit+0x234 sys/netinet/in.c:664 in_ioctl_change_ifaddr(8040691a,ffff800015943bb0,ffff800000a6e800,1) at in_ioctl_change_ifaddr+0x5de sys/netinet/in.c:452 in_ioctl(8040691a,ffff800015943bb0,ffff800000a6e800,1) at in_ioctl+0x205 sys/netinet/in.c:234 ifioctl(fffffd80363e0d88,8040691a,ffff800015943bb0,ffff800015934018) at ifioctl+0xb34 sys/net/if.c:2202 sys_ioctl(ffff800015934018,ffff800015943cc8,ffff800015943d10) at sys_ioctl+0x5b9 syscall(ffff800015943d90) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,bea70413010) at Xsyscall+0x128 end of kernel end trace frame: 0xbed00d79680, count: -12 ddb> show registers rdi 0 rsi 0xfd rbp 0xffff800015943630 rbx 0xffffffffffffff07 rdx 0xffff800000a74f7c rcx 0xffff800000a75075 rax 0xffff800000a75075 r8 0x4 r9 0x5 r10 0x4eb159336442a29b r11 0xc3b56f27066ec740 r12 0 r13 0xffff800000a75075 r14 0xffffffff824bf570 inetdomain r15 0x4 rip 0xffffffff82111980 rtable_satoplen+0x150 cs 0x8 rflags 0x10283 __ALIGN_SIZE+0xf283 rsp 0xffff8000159435e0 ss 0x10 rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb> show proc PROC (syz-executor.0) pid=19370 stat=onproc flags process=0 proc=4000000 pri=64, usrpri=64, nice=20 forw=0xffffffffffffffff, list=0xffff8000159358c8,0xffffffff82561488 process=0xffff8000ffff6010 user=0xffff80001593e000, vmspace=0xfffffd803f013dd0 estcpu=14, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 84572 426596 58761 0 2 0 syz-executor.0 *84572 19370 58761 0 7 0x4000000 syz-executor.0 18976 288107 23619 0 2 0 syz-executor.1 18976 472685 23619 0 2 0x4000000 syz-executor.1 18976 145545 23619 0 3 0x4000080 fsleep syz-executor.1 58761 515201 72190 0 3 0x82 nanosleep syz-executor.0 23619 327030 72190 0 2 0x482 syz-executor.1 72190 112384 54433 0 3 0x82 thrsleep syz-fuzzer 72190 238072 54433 0 2 0x4000482 syz-fuzzer 72190 368818 54433 0 3 0x4000082 thrsleep syz-fuzzer 72190 272805 54433 0 3 0x4000082 thrsleep syz-fuzzer 72190 406662 54433 0 3 0x4000082 thrsleep syz-fuzzer 72190 18361 54433 0 3 0x4000082 kqread syz-fuzzer 72190 238520 54433 0 3 0x4000082 thrsleep syz-fuzzer 54433 84541 49561 0 3 0x10008a pause ksh 49561 434733 31379 0 3 0x92 select sshd 97637 250933 1 0 3 0x100083 ttyin getty 31379 407901 1 0 3 0x80 select sshd 88702 20594 78730 73 3 0x100090 kqread syslogd 78730 305921 1 0 3 0x100082 netio syslogd 29417 50590 1 77 3 0x100090 poll dhclient 62663 509013 1 0 3 0x80 poll dhclient 91364 441762 0 0 2 0x14200 zerothread 73088 486729 0 0 3 0x14200 aiodoned aiodoned 1749 33159 0 0 3 0x14200 syncer update 49887 293065 0 0 3 0x14200 cleaner cleaner 67496 418976 0 0 3 0x14200 reaper reaper 8784 447134 0 0 3 0x14200 pgdaemon pagedaemon 53392 112668 0 0 3 0x14200 bored crynlk 2991 190377 0 0 3 0x14200 bored crypto 44389 429653 0 0 3 0x40014200 acpi0 acpi0 6278 451079 0 0 3 0x14200 bored softnet 97740 362285 0 0 3 0x14200 bored systqmp 90576 37603 0 0 3 0x14200 bored systq 68039 424516 0 0 3 0x40014200 bored softclock 14596 360339 0 0 3 0x40014200 idle0 54624 373386 0 0 3 0x14200 bored smr 1 299758 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 9438 6312K 6313K 78643K 10535 0 0 pcb 13 8K 8K 78643K 19 0 0 rtable 105 3K 3K 78643K 192 0 0 ifaddr 35 10K 10K 78643K 35 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 17 0 0 iov 0 0K 2K 78643K 4 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1215 76K 76K 78643K 1223 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 1K 78643K 2 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 4 0K 0K 78643K 6 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 6 17K 25K 78643K 41 0 0 sigio 0 0K 0K 78643K 4 0 0 proc 47 38K 54K 78643K 352 0 0 subproc 32 2K 2K 78643K 34 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 in_multi 33 2K 2K 78643K 33 0 0 ether_multi 1 0K 0K 78643K 1 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 18 79K 79K 78643K 18 0 0 exec 0 0K 1K 78643K 182 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 110 24K 24K 78643K 927 0 0 UVM aobj 4 2K 2K 78643K 4 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 NDP 9 0K 0K 78643K 9 0 0 temp 79 3528K 3592K 78643K 3214 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 6 0 0 1 0 1 1 0 8 0 rtpcb 80 19 0 17 1 0 1 1 0 8 0 rtentry 112 45 0 1 2 0 2 2 0 8 0 unpcb 120 31 0 23 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 50 0 50 1 0 1 1 0 8 1 tcpcb 544 12 0 8 1 0 1 1 0 8 0 inpcb 280 39 0 31 1 0 1 1 0 8 0 nd6 48 4 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 211 0 0 14 0 14 14 0 8 0 art_table 32 212 0 0 2 0 2 2 0 8 0 art_node 16 44 0 4 1 0 1 1 0 8 0 semapl 112 2 0 0 1 0 1 1 0 8 0 shmpl 112 2 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1424 0 25 46 0 46 46 0 8 0 ffsino 240 1424 0 25 83 0 83 83 0 8 0 nchpl 144 1677 0 66 60 0 60 60 0 8 0 uvmvnodes 72 1471 0 0 27 0 27 27 0 8 0 vnodes 208 1471 0 0 78 0 78 78 0 8 0 namei 1024 3984 0 3984 1 0 1 1 0 8 1 scxspl 192 4340 0 4340 2 1 1 2 0 8 1 plimitpl 152 14 0 7 1 0 1 1 0 8 0 sigapl 432 212 0 198 2 0 2 2 0 8 0 futexpl 56 214 0 213 1 0 1 1 0 8 0 knotepl 112 53 0 34 1 0 1 1 0 8 0 kqueuepl 104 3 0 0 1 0 1 1 0 8 0 pipepl 112 138 0 119 1 0 1 1 0 8 0 fdescpl 424 213 0 198 2 0 2 2 0 8 0 filepl 120 1052 0 954 4 0 4 4 0 8 1 lockfpl 104 10 0 8 1 0 1 1 0 8 0 lockfspl 48 6 0 4 1 0 1 1 0 8 0 sessionpl 112 17 0 7 1 0 1 1 0 8 0 pgrppl 48 17 0 7 1 0 1 1 0 8 0 ucredpl 96 40 0 33 1 0 1 1 0 8 0 zombiepl 144 198 0 198 1 0 1 1 0 8 1 processpl 864 227 0 198 4 0 4 4 0 8 0 procpl 632 241 0 203 4 0 4 4 0 8 0 sockpl 384 89 0 71 3 0 3 3 0 8 1 mcl4k 4096 10 0 10 2 1 1 1 0 8 1 mcl2k 2048 68392 0 68349 14 1 13 13 0 8 5 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 108044 0 107920 9 1 8 8 0 8 0 bufpl 256 6107 0 1333 299 0 299 299 0 8 0 anonpl 16 38282 0 21443 73 1 72 72 0 62 3 amapchunkpl 152 948 0 798 7 0 7 7 0 158 0 amappl16 192 1093 0 176 48 0 48 48 0 8 2 amappl15 184 8 0 7 1 0 1 1 0 8 0 amappl14 176 32 0 28 1 0 1 1 0 8 0 amappl13 168 5 0 3 1 0 1 1 0 8 0 amappl12 160 14 0 11 1 0 1 1 0 8 0 amappl11 152 46 0 35 1 0 1 1 0 8 0 amappl10 144 14 0 8 1 0 1 1 0 8 0 amappl9 136 584 0 577 1 0 1 1 0 8 0 amappl8 128 154 0 124 2 0 2 2 0 8 1 amappl7 120 39 0 34 1 0 1 1 0 8 0 amappl6 112 71 0 62 1 0 1 1 0 8 0 amappl5 104 134 0 124 1 0 1 1 0 8 0 amappl4 96 419 0 395 1 0 1 1 0 8 0 amappl3 88 107 0 102 1 0 1 1 0 8 0 amappl2 80 927 0 853 3 0 3 3 0 8 1 amappl1 72 13439 0 13008 25 8 17 20 0 8 8 amappl 80 467 0 420 1 0 1 1 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 3 0 0 1 0 1 1 0 8 0 uaddrrnd 24 213 0 198 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 213 0 198 1 0 1 1 0 8 0 vmmpekpl 168 5755 0 5733 2 0 2 2 0 8 1 vmmpepl 168 33199 0 31105 127 4 123 123 0 357 31 vmsppl 272 212 0 198 2 0 2 2 0 8 1 pdppl 4096 432 0 396 6 0 6 6 0 8 1 pvpl 32 123688 0 103344 172 0 172 172 0 265 6 pmappl 200 212 0 198 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 437 0 5 13 0 13 13 0 8 0