uvm_fault(0xffffffff825597b0, 0xffff800000bd0074, 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, 0xffff800000bd0074, 0, 1) -> e rtable_satoplen(2,ffff800000bcff78) at rtable_satoplen+0x150 sys/net/rtable.c:894 end trace frame: 0xffff800016d6d0e0, count: 0 ddb> trace rtable_satoplen(2,ffff800000bcff78) at rtable_satoplen+0x150 sys/net/rtable.c:894 rtable_lookup(0,fffffd80397a4720,ffff800000bcff78,ffff800000bcff58,4) at rtable_lookup+0xe0 sys/net/rtable.c:391 rtrequest_delete(ffff800016d6d180,4,ffff800000a9b000,ffff800016d6d250,0) at rtrequest_delete+0xe3 sys/net/route.c:775 rt_ifa_del(ffff800000bcff00,800100,ffff800000bcff58,0) at rt_ifa_del+0x3c3 sys/net/route.c:1191 in_purgeaddr(ffff800000bcff00) at in_purgeaddr+0xc6 in_remove_prefix sys/netinet/in.c:738 [inline] in_purgeaddr(ffff800000bcff00) at in_purgeaddr+0xc6 in_ifscrub sys/netinet/in.c:562 [inline] in_purgeaddr(ffff800000bcff00) at in_purgeaddr+0xc6 sys/netinet/in.c:678 in_ifinit(ffff800000a9b000,ffff800000bcff00,ffff800016d6d5d0,1) at in_ifinit+0x234 sys/netinet/in.c:664 in_ioctl_change_ifaddr(8040691a,ffff800016d6d5c0,ffff800000a9b000,1) at in_ioctl_change_ifaddr+0x5de sys/netinet/in.c:452 in_ioctl(8040691a,ffff800016d6d5c0,ffff800000a9b000,1) at in_ioctl+0x205 sys/netinet/in.c:234 ifioctl(fffffd802e15fc20,8040691a,ffff800016d6d5c0,ffff800014914ee8) at ifioctl+0xb34 sys/net/if.c:2202 sys_ioctl(ffff800014914ee8,ffff800016d6d6d8,ffff800016d6d720) at sys_ioctl+0x5b9 syscall(ffff800016d6d7a0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,e0fd163e010) at Xsyscall+0x128 end of kernel end trace frame: 0xe11eab1cd40, count: -12 ddb> show registers rdi 0 rsi 0xfd rbp 0xffff800016d6d040 rbx 0xffffffffffffff07 rdx 0xffff800000bcff7c rcx 0xffff800000bd0075 rax 0xffff800000bd0075 r8 0x4 r9 0x5 r10 0x751b9fa97e069f20 r11 0x6400177454cba3d8 r12 0 r13 0xffff800000bd0075 r14 0xffffffff824beb60 inetdomain r15 0x4 rip 0xffffffff81800560 rtable_satoplen+0x150 cs 0x8 rflags 0x10283 __ALIGN_SIZE+0xf283 rsp 0xffff800016d6cff0 ss 0x10 rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb> show proc PROC (syz-executor.1) pid=66587 stat=onproc flags process=0 proc=4000000 pri=80, usrpri=80, nice=20 forw=0xffffffffffffffff, list=0xffff800014915650,0xffffffff825a6d38 process=0xffff8000ffff70f0 user=0xffff800016d68000, vmspace=0xfffffd803f013110 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 35550 248105 81111 0 2 0 syz-executor.1 *35550 66587 81111 0 7 0x4000000 syz-executor.1 81111 484978 85514 0 2 0x482 syz-executor.1 20405 1528 1 0 3 0x100083 ttyin getty 65537 399789 85514 0 3 0x82 nanosleep syz-executor.0 29895 287415 0 0 3 0x14200 acct acct 71641 247257 0 0 3 0x14200 bored sosplice 85514 210716 94297 0 3 0x82 thrsleep syz-fuzzer 85514 91396 94297 0 3 0x4000082 thrsleep syz-fuzzer 85514 470216 94297 0 3 0x4000082 thrsleep syz-fuzzer 85514 453106 94297 0 3 0x4000082 thrsleep syz-fuzzer 85514 74938 94297 0 3 0x4000082 thrsleep syz-fuzzer 85514 377664 94297 0 3 0x4000082 kqread syz-fuzzer 85514 432366 94297 0 3 0x4000082 thrsleep syz-fuzzer 85514 359875 94297 0 3 0x4000082 thrsleep syz-fuzzer 94297 108190 54527 0 3 0x10008a pause ksh 54527 61486 16564 0 3 0x92 select sshd 16564 294695 1 0 3 0x80 select sshd 89482 67060 67835 73 2 0x100090 syslogd 67835 427796 1 0 3 0x100082 netio syslogd 52153 49656 1 77 3 0x100090 poll dhclient 9138 336134 1 0 3 0x80 poll dhclient 12842 242856 0 0 2 0x14200 zerothread 45288 372593 0 0 3 0x14200 aiodoned aiodoned 22118 328124 0 0 3 0x14200 syncer update 40646 269355 0 0 3 0x14200 cleaner cleaner 76114 354574 0 0 3 0x14200 reaper reaper 79365 87997 0 0 3 0x14200 pgdaemon pagedaemon 48762 153279 0 0 3 0x14200 bored crynlk 22001 127576 0 0 3 0x14200 bored crypto 32184 194912 0 0 3 0x40014200 acpi0 acpi0 80333 332932 0 0 3 0x14200 bored softnet 16689 209518 0 0 3 0x14200 bored systqmp 67292 192301 0 0 3 0x14200 bored systq 10925 60613 0 0 2 0x40014200 softclock 70902 20296 0 0 3 0x40014200 idle0 64092 92357 0 0 3 0x14200 bored smr 1 69454 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 9652 7917K 11672K 78643K 25722 0 0 pcb 13 12K 14K 78643K 1214 0 0 rtable 112 12K 12K 78643K 1615 0 0 ifaddr 82 17K 17K 78643K 434 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 145 0 0 iov 0 0K 24K 78643K 558 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1231 77K 78K 78643K 5409 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 46 0 0 VM map 23 5K 6K 78643K 33 0 0 sem 12 0K 0K 78643K 571 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 5 13K 25K 78643K 2221 0 0 sigio 0 0K 0K 78643K 42 0 0 proc 50 38K 63K 78643K 1002 0 0 subproc 32 2K 2K 78643K 259 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 259 0 0 in_multi 29 1K 2K 78643K 320 0 0 ether_multi 1 0K 0K 78643K 21 0 0 mrt 0 0K 0K 78643K 11 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 168 742K 742K 78643K 168 0 0 exec 0 0K 1K 78643K 620 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 136 202K 211K 78643K 6574 0 0 UVM aobj 130 7K 7K 78643K 139 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 535 0 0 NDP 20 0K 0K 78643K 148 0 0 temp 227 3540K 4180K 78643K 133945 0 0 kqueue 0 0K 0K 78643K 30 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 60 0 55 1 0 1 1 0 8 0 rtpcb 80 320 0 318 1 0 1 1 0 8 0 rtentry 112 299 0 259 2 0 2 2 0 8 0 unpcb 120 3951 0 3936 10 9 1 2 0 8 0 syncache 264 13 0 13 7 7 0 1 0 8 0 tcpqe 32 140 0 140 4 4 0 1 0 8 0 tcpcb 544 1823 0 1818 16 15 1 15 0 8 0 ipq 40 18 0 18 4 4 0 1 0 8 0 ipqe 40 428 0 428 4 4 0 1 0 8 0 inpcb 280 4975 0 4965 26 24 2 13 0 8 1 rttmr 72 4 0 3 2 1 1 1 0 8 0 ip6q 72 3 0 3 1 1 0 1 0 8 0 ip6af 40 7 0 7 1 1 0 1 0 8 0 nd6 48 41 0 38 3 2 1 1 0 8 0 pkpcb 40 5 0 5 3 3 0 1 0 8 0 ppxss 1128 38 0 38 11 10 1 1 0 8 1 art_heap8 4096 3 0 2 3 2 1 3 0 8 0 art_heap4 256 1364 0 1133 27 12 15 16 0 8 0 art_table 32 1367 0 1135 2 0 2 2 0 8 0 art_node 16 298 0 261 1 0 1 1 0 8 0 sysvmsgpl 40 51 0 32 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 569 0 559 1 0 1 1 0 8 0 shmpl 112 137 0 9 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 4881 0 3490 46 0 46 46 0 8 0 ffsino 240 4881 0 3490 83 0 83 83 0 8 0 nchpl 144 8479 0 8046 60 40 20 60 0 8 0 uvmvnodes 72 6356 0 0 116 0 116 116 0 8 0 vnodes 208 6356 0 0 335 0 335 335 0 8 0 namei 1024 30290 0 30290 3 2 1 1 0 8 1 vcpupl 1984 21 0 0 3 0 3 3 0 8 0 vmpool 520 31 0 10 2 0 2 2 0 8 0 scsiplug 64 2 0 2 2 2 0 1 0 8 0 scxspl 192 32352 0 32352 20 17 3 7 0 8 3 plimitpl 152 232 0 225 1 0 1 1 0 8 0 sigapl 432 2358 0 2345 2 0 2 2 0 8 0 futexpl 56 72395 0 72395 3 2 1 1 0 8 1 knotepl 112 634 0 615 1 0 1 1 0 8 0 kqueuepl 104 758 0 756 4 3 1 4 0 8 0 pipepl 112 2586 0 2563 12 11 1 2 0 8 0 fdescpl 424 2359 0 2345 2 0 2 2 0 8 0 filepl 120 26752 0 26645 30 25 5 11 0 8 1 lockfpl 104 1021 0 1020 1 0 1 1 0 8 0 lockfspl 48 316 0 315 1 0 1 1 0 8 0 sessionpl 112 35 0 25 1 0 1 1 0 8 0 pgrppl 48 55 0 45 1 0 1 1 0 8 0 ucredpl 96 2705 0 2698 1 0 1 1 0 8 0 zombiepl 144 2345 0 2344 1 0 1 1 0 8 0 processpl 864 2375 0 2344 4 0 4 4 0 8 0 procpl 632 5182 0 5143 5 1 4 5 0 8 0 sosppl 128 47 0 47 9 8 1 1 0 8 1 sockpl 384 9384 0 9357 50 45 5 21 0 8 2 mcl64k 65536 196 0 196 7 6 1 1 0 8 1 mcl16k 16384 29 0 29 12 11 1 1 0 8 1 mcl12k 12288 74 0 74 7 6 1 1 0 8 1 mcl9k 9216 31 0 31 11 10 1 1 0 8 1 mcl8k 8192 104 0 104 6 5 1 1 0 8 1 mcl4k 4096 270 0 270 4 3 1 1 0 8 1 mcl2k2 2112 52 0 52 10 9 1 1 0 8 1 mcl2k 2048 71869 0 71822 17 10 7 14 0 8 0 mtagpl 80 100 0 86 3 2 1 1 0 8 0 mbufpl 256 143149 0 143000 88 74 14 35 0 8 1 bufpl 256 15828 0 9446 400 0 400 400 0 8 0 anonpl 16 323680 0 304302 161 66 95 95 0 62 16 amapchunkpl 152 13507 0 13377 48 42 6 15 0 158 0 amappl16 192 15278 0 14188 142 79 63 68 0 8 8 amappl15 184 228 0 224 3 2 1 1 0 8 0 amappl14 176 508 0 505 1 0 1 1 0 8 0 amappl13 168 779 0 778 2 1 1 1 0 8 0 amappl12 160 150 0 146 1 0 1 1 0 8 0 amappl11 152 139 0 127 1 0 1 1 0 8 0 amappl10 144 18 0 18 2 2 0 1 0 8 0 amappl9 136 901 0 894 1 0 1 1 0 8 0 amappl8 128 467 0 424 4 2 2 2 0 8 0 amappl7 120 85 0 78 1 0 1 1 0 8 0 amappl6 112 140 0 130 1 0 1 1 0 8 0 amappl5 104 413 0 402 1 0 1 1 0 8 0 amappl4 96 2870 0 2839 1 0 1 1 0 8 0 amappl3 88 638 0 632 1 0 1 1 0 8 0 amappl2 80 17775 0 17699 3 1 2 3 0 8 0 amappl1 72 53302 0 52894 26 17 9 20 0 8 0 amappl 80 5661 0 5611 2 0 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 64 138 0 9 3 0 3 3 0 8 0 uaddrrnd 24 2390 0 2345 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2390 0 2345 1 0 1 1 0 8 0 vmmpekpl 168 20494 0 20462 2 0 2 2 0 8 0 vmmpepl 168 296143 0 293920 272 138 134 140 0 357 31 vmsppl 272 2358 0 2345 3 2 1 2 0 8 0 pdppl 4096 4786 0 4731 10 2 8 8 0 8 0 pvpl 32 862904 0 840650 371 150 221 310 0 265 40 pmappl 200 2389 0 2355 2 0 2 2 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 684 0 146 16 0 16 16 0 8 0