uvm_fault(0xffffffff82559478, 0xffff800000b7306e, 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(0xffffffff82559478, 0xffff800000b7306e, 0, 1) -> e rtable_satoplen(2,ffff800000b72f78) at rtable_satoplen+0x150 sys/net/rtable.c:894 end trace frame: 0xffff8000149108d0, count: 0 ddb> trace rtable_satoplen(2,ffff800000b72f78) at rtable_satoplen+0x150 sys/net/rtable.c:894 rtable_lookup(6,fffffd802a01f220,ffff800000b72f78,ffff800000b72f58,4) at rtable_lookup+0xe0 sys/net/rtable.c:391 rtrequest_delete(ffff800014910970,4,ffff800000a75800,ffff800014910a40,6) at rtrequest_delete+0xe3 sys/net/route.c:775 rt_ifa_del(ffff800000b72f00,800100,ffff800000b72f58,6) at rt_ifa_del+0x3c3 sys/net/route.c:1191 in_ioctl_change_ifaddr(8040691a,ffff800014910cd0,ffff800000a75800,1) at in_ioctl_change_ifaddr+0x355 in_remove_prefix sys/netinet/in.c:738 [inline] in_ioctl_change_ifaddr(8040691a,ffff800014910cd0,ffff800000a75800,1) at in_ioctl_change_ifaddr+0x355 in_ifscrub sys/netinet/in.c:562 [inline] in_ioctl_change_ifaddr(8040691a,ffff800014910cd0,ffff800000a75800,1) at in_ioctl_change_ifaddr+0x355 sys/netinet/in.c:432 in_ioctl(8040691a,ffff800014910cd0,ffff800000a75800,1) at in_ioctl+0x205 sys/netinet/in.c:234 ifioctl(fffffd80363c9a88,8040691a,ffff800014910cd0,ffff8000ffff2780) at ifioctl+0xb34 sys/net/if.c:2202 sys_ioctl(ffff8000ffff2780,ffff800014910de8,ffff800014910e30) at sys_ioctl+0x5b9 syscall(ffff800014910eb0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,8618aa25010) at Xsyscall+0x128 end of kernel end trace frame: 0x863fb8ca800, count: -10 ddb> show registers rdi 0 rsi 0xf7 rbp 0xffff800014910830 rbx 0xffffffffffffff0d rdx 0xffff800000b72f7c rcx 0xffff800000b7306f rax 0xffff800000b7306f r8 0x4 r9 0x7 r10 0x60b93b313551d494 r11 0x142734c49f444ee2 r12 0 r13 0xffff800000b7306f r14 0xffffffff824ab3a0 inetdomain r15 0x4 rip 0xffffffff818dbab0 rtable_satoplen+0x150 cs 0x8 rflags 0x10293 __ALIGN_SIZE+0xf293 rsp 0xffff8000149107e0 ss 0x10 rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb> show proc PROC (syz-executor.0) pid=400543 stat=onproc flags process=0 proc=4000000 pri=78, usrpri=78, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff3b40,0xffff8000ffff3660 process=0xffff8000148a2378 user=0xffff80001490b000, vmspace=0xfffffd803f013110 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 79039 194698 63060 0 2 0 syz-executor.1 79039 46069 63060 0 3 0x4000080 fsleep syz-executor.1 81520 304740 47199 0 2 0 syz-executor.0 *81520 400543 47199 0 7 0x4000000 syz-executor.0 63060 125851 46834 0 3 0x82 nanosleep syz-executor.1 47199 267657 46834 0 3 0x82 nanosleep syz-executor.0 67599 65941 0 0 3 0x14200 acct acct 82432 171660 0 0 3 0x14200 bored sosplice 46834 336075 82704 0 3 0x82 thrsleep syz-fuzzer 46834 315225 82704 0 3 0x4000082 thrsleep syz-fuzzer 46834 515176 82704 0 3 0x4000082 thrsleep syz-fuzzer 46834 197187 82704 0 3 0x4000082 thrsleep syz-fuzzer 46834 375267 82704 0 3 0x4000082 kqread syz-fuzzer 46834 165426 82704 0 3 0x4000082 thrsleep syz-fuzzer 46834 40443 82704 0 3 0x4000082 thrsleep syz-fuzzer 82704 492415 77893 0 3 0x10008a pause ksh 77893 204971 38330 0 3 0x92 select sshd 26447 109754 1 0 3 0x100083 ttyin getty 38330 511924 1 0 3 0x80 select sshd 50253 294634 32932 73 3 0x100090 kqread syslogd 32932 421016 1 0 3 0x100082 netio syslogd 68144 424247 1 77 3 0x100090 poll dhclient 12903 523422 1 0 3 0x80 poll dhclient 88428 409998 0 0 2 0x14200 zerothread 17222 25855 0 0 3 0x14200 aiodoned aiodoned 28937 308640 0 0 3 0x14200 syncer update 80948 365206 0 0 3 0x14200 cleaner cleaner 93922 310610 0 0 3 0x14200 reaper reaper 83521 487960 0 0 3 0x14200 pgdaemon pagedaemon 56145 85543 0 0 3 0x14200 bored crynlk 29936 439983 0 0 3 0x14200 bored crypto 93360 72009 0 0 3 0x40014200 acpi0 acpi0 33959 43487 0 0 3 0x14200 bored softnet 52235 220364 0 0 3 0x14200 bored systqmp 58451 411537 0 0 3 0x14200 bored systq 24278 203725 0 0 3 0x40014200 bored softclock 78099 426819 0 0 3 0x40014200 idle0 40937 97559 0 0 3 0x14200 bored smr 1 496084 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 9550 6356K 6921K 78643K 12250 0 0 pcb 15 8K 8K 78643K 523 0 0 rtable 101 7K 8K 78643K 2883 0 0 ifaddr 72 14K 14K 78643K 366 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 46 0 0 iov 0 0K 24K 78643K 189 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1218 77K 77K 78643K 2628 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 20 0 0 VM map 4 1K 1K 78643K 4 0 0 sem 12 0K 1K 78643K 1652 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 6 17K 25K 78643K 1759 0 0 sigio 0 0K 0K 78643K 8 0 0 proc 48 38K 54K 78643K 566 0 0 subproc 32 2K 2K 78643K 102 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 381 0 0 in_multi 24 1K 2K 78643K 1500 0 0 ether_multi 1 0K 0K 78643K 3 0 0 mrt 0 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 138 609K 609K 78643K 138 0 0 exec 0 0K 1K 78643K 270 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 104 38K 40K 78643K 5670 0 0 UVM aobj 33 2K 2K 78643K 51 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 1 0K 1K 78643K 830 0 0 NDP 17 0K 0K 78643K 266 0 0 temp 204 3540K 3610K 78643K 30573 0 0 kqueue 0 0K 0K 78643K 6 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 18 0 13 1 0 1 1 0 8 0 rtpcb 80 364 0 362 1 0 1 1 0 8 0 rtentry 112 1269 0 1233 2 0 2 2 0 8 0 unpcb 120 15683 0 15673 6 5 1 2 0 8 0 syncache 264 9 0 9 3 3 0 1 0 8 0 tcpqe 32 27 0 27 1 1 0 1 0 8 0 tcpcb 544 1151 0 1146 2 1 1 2 0 8 0 ipq 40 3 0 3 1 1 0 1 0 8 0 ipqe 40 91 0 91 1 1 0 1 0 8 0 inpcb 280 2680 0 2668 8 6 2 3 0 8 1 rttmr 72 1 0 0 1 0 1 1 0 8 0 nd6 48 234 0 232 1 0 1 1 0 8 0 ppxss 1128 4 0 4 3 3 0 1 0 8 0 art_heap8 4096 278 0 277 3 0 3 3 0 8 2 art_heap4 256 7445 0 7247 16 2 14 16 0 8 1 art_table 32 7723 0 7524 2 0 2 2 0 8 0 art_node 16 1268 0 1235 1 0 1 1 0 8 0 sysvmsgpl 40 69 0 29 1 0 1 1 0 8 0 semupl 112 7 0 7 2 2 0 1 0 8 0 semapl 112 1648 0 1638 1 0 1 1 0 8 0 shmpl 112 49 0 18 2 1 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 4986 0 3596 46 0 46 46 0 8 0 ffsino 240 4986 0 3596 83 0 83 83 0 8 0 nchpl 144 9500 0 9024 60 41 19 60 0 8 0 uvmvnodes 72 5448 0 0 100 0 100 100 0 8 0 vnodes 208 5448 0 0 287 0 287 287 0 8 0 namei 1024 33538 0 33538 1 0 1 1 0 8 1 vcpupl 1984 2 0 0 1 0 1 1 0 8 0 vmpool 520 2 0 0 1 0 1 1 0 8 0 scxspl 192 18707 0 18707 10 9 1 7 0 8 1 plimitpl 152 55 0 48 1 0 1 1 0 8 0 sigapl 432 1918 0 1904 2 0 2 2 0 8 0 futexpl 56 102695 0 102694 1 0 1 1 0 8 0 knotepl 112 261 0 242 1 0 1 1 0 8 0 kqueuepl 104 1196 0 1194 1 0 1 1 0 8 0 pipepl 112 6608 0 6589 5 4 1 2 0 8 0 fdescpl 424 1919 0 1904 2 0 2 2 0 8 0 filepl 120 45330 0 45229 8 3 5 6 0 8 1 lockfpl 104 516 0 515 1 0 1 1 0 8 0 lockfspl 48 150 0 149 1 0 1 1 0 8 0 sessionpl 112 21 0 11 1 0 1 1 0 8 0 pgrppl 48 33 0 23 1 0 1 1 0 8 0 ucredpl 96 9328 0 9321 1 0 1 1 0 8 0 zombiepl 144 1904 0 1904 1 0 1 1 0 8 1 processpl 864 1935 0 1904 4 0 4 4 0 8 0 procpl 632 4803 0 4764 4 0 4 4 0 8 0 sosppl 128 2 0 2 1 1 0 1 0 8 0 sockpl 384 18733 0 18709 12 7 5 6 0 8 2 mcl64k 65536 833 0 833 1 0 1 1 0 8 1 mcl16k 16384 10 0 10 7 7 0 1 0 8 0 mcl12k 12288 665 0 665 1 0 1 1 0 8 1 mcl9k 9216 17 0 17 9 8 1 1 0 8 1 mcl8k 8192 221 0 221 3 2 1 1 0 8 1 mcl4k 4096 160 0 160 3 2 1 1 0 8 1 mcl2k2 2112 3 0 3 2 2 0 1 0 8 0 mcl2k 2048 78204 0 78162 19 12 7 14 0 8 0 mtagpl 80 109 0 82 2 1 1 1 0 8 0 mbufpl 256 171254 0 171080 68 54 14 54 0 8 1 bufpl 256 8877 0 3961 308 0 308 308 0 8 0 anonpl 16 172134 0 153240 93 17 76 89 0 62 0 amapchunkpl 152 9171 0 9045 14 8 6 10 0 158 0 amappl16 192 8580 0 7524 65 12 53 63 0 8 0 amappl15 184 1 0 1 1 1 0 1 0 8 0 amappl14 176 445 0 441 1 0 1 1 0 8 0 amappl13 168 554 0 553 1 0 1 1 0 8 0 amappl12 160 144 0 139 1 0 1 1 0 8 0 amappl11 152 460 0 446 1 0 1 1 0 8 0 amappl10 144 16 0 15 1 0 1 1 0 8 0 amappl9 136 837 0 829 1 0 1 1 0 8 0 amappl8 128 415 0 384 2 0 2 2 0 8 1 amappl7 120 55 0 50 1 0 1 1 0 8 0 amappl6 112 457 0 446 1 0 1 1 0 8 0 amappl5 104 1088 0 1078 1 0 1 1 0 8 0 amappl4 96 2324 0 2294 1 0 1 1 0 8 0 amappl3 88 1655 0 1648 1 0 1 1 0 8 0 amappl2 80 14230 0 14153 3 1 2 3 0 8 0 amappl1 72 46950 0 46529 26 17 9 20 0 8 0 amappl 80 5084 0 5044 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 50 0 18 1 0 1 1 0 8 0 uaddrrnd 24 1921 0 1904 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1921 0 1904 1 0 1 1 0 8 0 vmmpekpl 168 28592 0 28567 2 0 2 2 0 8 0 vmmpepl 168 236276 0 234059 220 119 101 160 0 357 4 vmsppl 272 1918 0 1904 3 2 1 2 0 8 0 pdppl 4096 3848 0 3810 7 2 5 6 0 8 0 pvpl 32 513467 0 491442 222 43 179 208 0 265 1 pmappl 200 1920 0 1904 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 529 0 86 14 0 14 14 0 8 0