uvm_fault(0xffffffff82557e48, 0xffff800000a9f074, 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(0xffffffff82557e48, 0xffff800000a9f074, 0, 1) -> e rtable_satoplen(2,ffff800000a9ef78) at rtable_satoplen+0x150 sys/net/rtable.c:894 end trace frame: 0xffff80001797e020, count: 0 ddb> trace rtable_satoplen(2,ffff800000a9ef78) at rtable_satoplen+0x150 sys/net/rtable.c:894 rtable_lookup(0,fffffd803f02e920,ffff800000a9ef78,ffff800000a9ef58,4) at rtable_lookup+0xe0 sys/net/rtable.c:391 rtrequest_delete(ffff80001797e0c0,4,ffff800000b0a800,ffff80001797e190,0) at rtrequest_delete+0xe3 sys/net/route.c:775 rt_ifa_del(ffff800000a9ef00,800100,ffff800000a9ef58,0) at rt_ifa_del+0x3c3 sys/net/route.c:1191 in_purgeaddr(ffff800000a9ef00) at in_purgeaddr+0xc6 in_remove_prefix sys/netinet/in.c:738 [inline] in_purgeaddr(ffff800000a9ef00) at in_purgeaddr+0xc6 in_ifscrub sys/netinet/in.c:562 [inline] in_purgeaddr(ffff800000a9ef00) at in_purgeaddr+0xc6 sys/netinet/in.c:678 in_ifinit(ffff800000b0a800,ffff800000a9ef00,ffff80001797e510,1) at in_ifinit+0x234 sys/netinet/in.c:664 in_ioctl_change_ifaddr(8040691a,ffff80001797e500,ffff800000b0a800,1) at in_ioctl_change_ifaddr+0x5de sys/netinet/in.c:452 in_ioctl(8040691a,ffff80001797e500,ffff800000b0a800,1) at in_ioctl+0x205 sys/netinet/in.c:234 ifioctl(fffffd80391bf960,8040691a,ffff80001797e500,ffff8000ffff2780) at ifioctl+0xb34 sys/net/if.c:2202 sys_ioctl(ffff8000ffff2780,ffff80001797e618,ffff80001797e660) at sys_ioctl+0x5b9 syscall(ffff80001797e6e0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,57298aa81b0) at Xsyscall+0x128 end of kernel end trace frame: 0x574c623b320, count: -12 ddb> show registers rdi 0 rsi 0xfd rbp 0xffff80001797df80 rbx 0xffffffffffffff07 rdx 0xffff800000a9ef7c rcx 0xffff800000a9f075 rax 0xffff800000a9f075 r8 0x4 r9 0x5 r10 0xd7891d2c66d06612 r11 0x5cfdbf2690fd42f2 r12 0 r13 0xffff800000a9f075 r14 0xffffffff824ae810 inetdomain r15 0x4 rip 0xffffffff815d6f90 rtable_satoplen+0x150 cs 0x8 rflags 0x10283 __ALIGN_SIZE+0xf283 rsp 0xffff80001797df30 ss 0x10 rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb> show proc PROC (syz-executor.0) pid=248007 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff3650,0xffffffff82563c58 process=0xffff8000ffff6d90 user=0xffff800017979000, vmspace=0xfffffd803f014220 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 20051 266560 20149 0 2 0 syz-executor.0 20051 169857 20149 0 3 0x4000080 kqread syz-executor.0 20051 475939 20149 0 3 0x4000080 kqread syz-executor.0 *20051 248007 20149 0 7 0x4000000 syz-executor.0 20149 438861 9578 0 3 0x82 nanosleep syz-executor.0 47115 441655 9578 0 3 0x82 piperd syz-executor.1 36388 469519 0 0 3 0x14200 bored sosplice 9578 147092 33498 0 3 0x82 thrsleep syz-fuzzer 9578 453992 33498 0 3 0x4000082 thrsleep syz-fuzzer 9578 22978 33498 0 3 0x4000082 kqread syz-fuzzer 9578 148225 33498 0 3 0x4000082 thrsleep syz-fuzzer 9578 469811 33498 0 3 0x4000082 thrsleep syz-fuzzer 9578 414777 33498 0 3 0x4000082 thrsleep syz-fuzzer 9578 391390 33498 0 3 0x4000082 thrsleep syz-fuzzer 9578 380602 33498 0 3 0x4000082 thrsleep syz-fuzzer 33498 253359 33606 0 3 0x10008a pause ksh 33606 78540 19214 0 3 0x92 select sshd 30469 396305 1 0 3 0x100083 ttyopn getty 19214 195311 1 0 3 0x80 select sshd 16495 346515 43579 73 3 0x100090 kqread syslogd 43579 420282 1 0 3 0x100082 netio syslogd 82812 105511 1 77 3 0x100090 poll dhclient 73201 419828 1 0 3 0x80 poll dhclient 35601 161707 0 0 2 0x14200 zerothread 91369 292466 0 0 3 0x14200 aiodoned aiodoned 70385 245807 0 0 3 0x14200 syncer update 11447 121056 0 0 3 0x14200 cleaner cleaner 561 471551 0 0 3 0x14200 reaper reaper 27985 319739 0 0 3 0x14200 pgdaemon pagedaemon 59072 422444 0 0 3 0x14200 bored crynlk 26082 71723 0 0 3 0x14200 bored crypto 83871 93325 0 0 3 0x40014200 acpi0 acpi0 97114 339253 0 0 3 0x14200 bored softnet 37258 8400 0 0 3 0x14200 bored systqmp 43212 250047 0 0 3 0x14200 bored systq 49227 10622 0 0 3 0x40014200 bored softclock 11537 209313 0 0 3 0x40014200 idle0 52045 83809 0 0 3 0x14200 bored smr 1 357181 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 9556 6995K 8943K 78643K 20387 0 0 pcb 13 12K 14K 78643K 446 0 0 rtable 98 7K 8K 78643K 1511 0 0 ifaddr 78 16K 18K 78643K 420 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 128 0 0 iov 0 0K 20K 78643K 474 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1236 78K 78K 78643K 4036 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 27 0 0 VM map 23 5K 5K 78643K 26 0 0 sem 12 0K 0K 78643K 382 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 5 13K 25K 78643K 1836 0 0 sigio 0 0K 0K 78643K 21 0 0 proc 49 38K 63K 78643K 956 0 0 subproc 32 2K 2K 78643K 221 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 171 0 0 in_multi 24 1K 2K 78643K 289 0 0 ether_multi 1 0K 0K 78643K 23 0 0 mrt 0 0K 0K 78643K 7 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 84 371K 371K 78643K 84 0 0 exec 0 0K 1K 78643K 497 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 151 169K 170K 78643K 5757 0 0 UVM aobj 123 7K 7K 78643K 134 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 0K 78643K 453 0 0 NDP 18 0K 0K 78643K 134 0 0 temp 213 3540K 4181K 78643K 60653 0 0 kqueue 0 0K 0K 78643K 217 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 51 0 46 1 0 1 1 0 8 0 rtpcb 80 234 0 232 1 0 1 1 0 8 0 rtentry 112 286 0 250 2 0 2 2 0 8 0 unpcb 120 870 0 862 1 0 1 1 0 8 0 syncache 264 15 0 15 8 8 0 1 0 8 0 tcpqe 32 138 0 138 3 3 0 1 0 8 0 tcpcb 544 1131 0 1127 23 22 1 15 0 8 0 ipq 40 15 0 15 7 7 0 1 0 8 0 ipqe 40 419 0 419 7 7 0 1 0 8 0 inpcb 280 2738 0 2730 31 30 1 13 0 8 0 rttmr 72 2 0 1 1 0 1 1 0 8 0 ip6q 72 2 0 2 1 1 0 1 0 8 0 ip6af 40 6 0 6 1 1 0 1 0 8 0 nd6 48 41 0 39 1 0 1 1 0 8 0 pkpcb 40 8 0 8 2 1 1 1 0 8 1 ppxss 1128 51 0 51 11 10 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1203 0 1004 24 11 13 17 0 8 0 art_table 32 1204 0 1004 3 0 3 3 0 8 0 art_node 16 283 0 250 1 0 1 1 0 8 0 sysvmsgpl 40 50 0 33 1 0 1 1 0 8 0 semapl 112 380 0 370 1 0 1 1 0 8 0 shmpl 112 132 0 11 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 4244 0 2853 46 0 46 46 0 8 0 ffsino 240 4244 0 2853 83 0 83 83 0 8 0 nchpl 144 7150 0 6699 61 41 20 61 0 8 0 uvmvnodes 72 6147 0 0 112 0 112 112 0 8 0 vnodes 208 6147 0 0 324 0 324 324 0 8 0 namei 1024 25035 0 25035 5 4 1 1 0 8 1 vcpupl 1984 21 0 0 3 0 3 3 0 8 0 vmpool 520 24 0 3 2 0 2 2 0 8 0 scxspl 192 26436 0 26436 23 20 3 7 0 8 3 plimitpl 152 171 0 164 1 0 1 1 0 8 0 sigapl 432 1974 0 1961 2 0 2 2 0 8 0 futexpl 56 55668 0 55668 5 4 1 1 0 8 1 knotepl 112 1302 0 1283 4 3 1 3 0 8 0 kqueuepl 104 1598 0 1594 4 3 1 4 0 8 0 pipepl 112 2002 0 1983 10 9 1 2 0 8 0 fdescpl 424 1975 0 1961 2 0 2 2 0 8 0 filepl 120 18815 0 18717 23 19 4 11 0 8 1 lockfpl 104 1403 0 1402 1 0 1 1 0 8 0 lockfspl 48 358 0 357 1 0 1 1 0 8 0 sessionpl 112 28 0 18 1 0 1 1 0 8 0 pgrppl 48 46 0 36 1 0 1 1 0 8 0 ucredpl 96 2098 0 2091 1 0 1 1 0 8 0 zombiepl 144 1966 0 1966 1 0 1 1 0 8 1 processpl 864 1995 0 1966 4 0 4 4 0 8 0 procpl 632 4492 0 4453 6 2 4 5 0 8 0 sosppl 128 18 0 18 6 6 0 1 0 8 0 sockpl 384 3875 0 3857 51 48 3 21 0 8 0 mcl64k 65536 943 0 943 70 69 1 33 0 8 1 mcl16k 16384 19 0 19 10 10 0 1 0 8 0 mcl12k 12288 57 0 57 8 7 1 1 0 8 1 mcl9k 9216 37 0 37 9 8 1 1 0 8 1 mcl8k 8192 87 0 87 9 8 1 1 0 8 1 mcl4k 4096 229 0 229 7 6 1 1 0 8 1 mcl2k2 2112 9 0 9 5 4 1 1 0 8 1 mcl2k 2048 70076 0 70032 23 17 6 16 0 8 0 mtagpl 80 78 0 72 6 5 1 1 0 8 0 mbufpl 256 129290 0 129191 50 40 10 24 0 8 0 bufpl 256 13357 0 7200 386 0 386 386 0 8 0 anonpl 16 287436 0 268658 153 72 81 96 0 62 0 amapchunkpl 152 11116 0 10965 47 40 7 17 0 158 0 amappl16 192 12955 0 11854 158 93 65 66 0 8 8 amappl15 184 1 0 1 1 1 0 1 0 8 0 amappl14 176 285 0 281 1 0 1 1 0 8 0 amappl13 168 116 0 115 1 0 1 1 0 8 0 amappl12 160 511 0 509 1 0 1 1 0 8 0 amappl11 152 378 0 367 1 0 1 1 0 8 0 amappl10 144 27 0 21 1 0 1 1 0 8 0 amappl9 136 1157 0 1148 1 0 1 1 0 8 0 amappl8 128 714 0 672 2 0 2 2 0 8 0 amappl7 120 84 0 76 1 0 1 1 0 8 0 amappl6 112 381 0 369 1 0 1 1 0 8 0 amappl5 104 744 0 732 1 0 1 1 0 8 0 amappl4 96 2004 0 1976 1 0 1 1 0 8 0 amappl3 88 542 0 536 1 0 1 1 0 8 0 amappl2 80 14294 0 14222 3 1 2 3 0 8 0 amappl1 72 47029 0 46614 25 16 9 20 0 8 0 amappl 80 4908 0 4850 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 64 133 0 11 2 0 2 2 0 8 0 uaddrrnd 24 1999 0 1961 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1999 0 1961 1 0 1 1 0 8 0 vmmpekpl 168 18913 0 18879 2 0 2 2 0 8 0 vmmpepl 168 250418 0 248145 281 166 115 138 0 357 8 vmsppl 272 1974 0 1961 3 2 1 2 0 8 0 pdppl 4096 4004 0 3949 11 3 8 8 0 8 1 pvpl 32 812072 0 790920 435 197 238 318 0 265 54 pmappl 200 1998 0 1964 2 0 2 2 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 710 0 194 17 0 17 17 0 8 0