uvm_fault(0xffffffff82557e48, 0xffff800000aae074, 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, 0xffff800000aae074, 0, 1) -> e rtable_satoplen(2,ffff800000aadf78) at rtable_satoplen+0x150 sys/net/rtable.c:894 end trace frame: 0xffff800014941fb0, count: 0 ddb> trace rtable_satoplen(2,ffff800000aadf78) at rtable_satoplen+0x150 sys/net/rtable.c:894 rtable_lookup(0,fffffd8031b49520,ffff800000aadf78,ffff800000aadf58,4) at rtable_lookup+0xe0 sys/net/rtable.c:391 rtrequest_delete(ffff800014942050,4,ffff800000a62800,ffff800014942120,0) at rtrequest_delete+0xe3 sys/net/route.c:775 rt_ifa_del(ffff800000aadf00,800100,ffff800000aadf58,0) at rt_ifa_del+0x3c3 sys/net/route.c:1191 in_purgeaddr(ffff800000aadf00) at in_purgeaddr+0xc6 in_remove_prefix sys/netinet/in.c:738 [inline] in_purgeaddr(ffff800000aadf00) at in_purgeaddr+0xc6 in_ifscrub sys/netinet/in.c:562 [inline] in_purgeaddr(ffff800000aadf00) at in_purgeaddr+0xc6 sys/netinet/in.c:678 in_ifinit(ffff800000a62800,ffff800000aadf00,ffff8000149424a0,1) at in_ifinit+0x234 sys/netinet/in.c:664 in_ioctl_change_ifaddr(8040691a,ffff800014942490,ffff800000a62800,1) at in_ioctl_change_ifaddr+0x5de sys/netinet/in.c:452 in_ioctl(8040691a,ffff800014942490,ffff800000a62800,1) at in_ioctl+0x205 sys/netinet/in.c:234 ifioctl(fffffd803701e600,8040691a,ffff800014942490,ffff8000ffff3b40) at ifioctl+0xb34 sys/net/if.c:2202 sys_ioctl(ffff8000ffff3b40,ffff8000149425a8,ffff8000149425f0) at sys_ioctl+0x5b9 syscall(ffff800014942670) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,d21700f8010) at Xsyscall+0x128 end of kernel end trace frame: 0xd24160803d0, count: -12 ddb> show registers rdi 0 rsi 0xfd rbp 0xffff800014941f10 rbx 0xffffffffffffff07 rdx 0xffff800000aadf7c rcx 0xffff800000aae075 rax 0xffff800000aae075 r8 0x4 r9 0x5 r10 0x51daefba28b83038 r11 0x75ed09da446e3294 r12 0 r13 0xffff800000aae075 r14 0xffffffff824ae810 inetdomain r15 0x4 rip 0xffffffff815d6f90 rtable_satoplen+0x150 cs 0x8 rflags 0x10283 __ALIGN_SIZE+0xf283 rsp 0xffff800014941ec0 ss 0x10 rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb> show proc PROC (syz-executor.1) pid=176604 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff2508,0xffffffff82563c58 process=0xffff8000ffff6d90 user=0xffff80001493d000, vmspace=0xfffffd803f014cc0 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 63693 69799 40363 0 2 0 syz-executor.1 *63693 176604 40363 0 7 0x4000000 syz-executor.1 91035 306085 28264 0 2 0 syz-executor.0 91035 326595 28264 0 3 0x4000080 fsleep syz-executor.0 23282 304479 0 0 3 0x14200 acct acct 28264 519002 11360 0 3 0x82 nanosleep syz-executor.0 45175 398819 0 0 3 0x14200 bored sosplice 40363 294790 11360 0 3 0x82 nanosleep syz-executor.1 11360 251158 55719 0 3 0x82 thrsleep syz-fuzzer 11360 375662 55719 0 3 0x4000082 thrsleep syz-fuzzer 11360 5570 55719 0 3 0x4000082 thrsleep syz-fuzzer 11360 495426 55719 0 3 0x4000082 thrsleep syz-fuzzer 11360 270351 55719 0 3 0x4000082 thrsleep syz-fuzzer 11360 428335 55719 0 3 0x4000082 kqread syz-fuzzer 11360 120461 55719 0 3 0x4000082 thrsleep syz-fuzzer 11360 399896 55719 0 3 0x4000082 thrsleep syz-fuzzer 55719 488339 11582 0 3 0x10008a pause ksh 11582 59318 13130 0 3 0x92 select sshd 39836 237977 1 0 3 0x100083 ttyin getty 13130 80623 1 0 3 0x80 select sshd 88839 158559 57042 73 2 0x100090 syslogd 57042 418338 1 0 3 0x100082 netio syslogd 96892 416084 1 77 3 0x100090 poll dhclient 44992 79269 1 0 3 0x80 poll dhclient 76008 258735 0 0 2 0x14200 zerothread 9229 243177 0 0 3 0x14200 aiodoned aiodoned 34059 54633 0 0 3 0x14200 syncer update 52092 388493 0 0 3 0x14200 cleaner cleaner 15538 173400 0 0 3 0x14200 reaper reaper 63035 470301 0 0 3 0x14200 pgdaemon pagedaemon 97255 79847 0 0 3 0x14200 bored crynlk 21510 228028 0 0 3 0x14200 bored crypto 14522 45023 0 0 3 0x40014200 acpi0 acpi0 38103 306405 0 0 3 0x14200 bored softnet 17947 329973 0 0 3 0x14200 bored systqmp 90913 330878 0 0 3 0x14200 bored systq 60762 519590 0 0 3 0x40014200 bored softclock 19216 261839 0 0 3 0x40014200 idle0 33346 418835 0 0 3 0x14200 bored smr 1 136281 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 9469 6322K 6901K 78643K 10982 0 0 pcb 13 8K 8K 78643K 65 0 0 rtable 104 3K 3K 78643K 361 0 0 ifaddr 46 11K 11K 78643K 69 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 26 0 0 iov 0 0K 24K 78643K 65 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1222 77K 77K 78643K 1374 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 6 0 0 VM map 3 0K 0K 78643K 3 0 0 sem 10 1K 1K 78643K 12 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 6 17K 25K 78643K 202 0 0 sigio 0 0K 0K 78643K 4 0 0 proc 48 38K 63K 78643K 395 0 0 subproc 32 2K 2K 78643K 55 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 22 0 0 in_multi 29 1K 2K 78643K 57 0 0 ether_multi 1 0K 0K 78643K 3 0 0 mrt 0 0K 0K 78643K 3 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 54 238K 238K 78643K 54 0 0 exec 0 0K 1K 78643K 218 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 115 38K 38K 78643K 1339 0 0 UVM aobj 13 2K 2K 78643K 13 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 42 0 0 NDP 8 0K 0K 78643K 20 0 0 temp 143 3540K 3604K 78643K 5170 0 0 kqueue 0 0K 0K 78643K 2 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 16 0 10 1 0 1 1 0 8 0 rtpcb 80 37 0 35 1 0 1 1 0 8 0 rtentry 112 80 0 38 2 0 2 2 0 8 0 unpcb 120 689 0 680 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 157 0 157 1 1 0 1 0 8 0 tcpcb 544 66 0 62 1 0 1 1 0 8 0 inpcb 280 510 0 500 3 0 3 3 0 8 2 rttmr 72 1 0 1 1 0 1 1 0 8 1 nd6 48 7 0 4 1 0 1 1 0 8 0 ppxss 1128 2 0 2 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 317 0 113 15 0 15 15 0 8 0 art_table 32 318 0 113 2 0 2 2 0 8 0 art_node 16 79 0 40 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 0 1 0 1 1 0 8 0 semupl 112 3 0 3 1 0 1 1 0 8 1 semapl 112 10 0 2 1 0 1 1 0 8 0 shmpl 112 11 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1664 0 266 46 0 46 46 0 8 0 ffsino 240 1664 0 266 83 0 83 83 0 8 0 nchpl 144 2137 0 536 60 0 60 60 0 8 0 uvmvnodes 72 1816 0 0 34 0 34 34 0 8 0 vnodes 208 1816 0 0 96 0 96 96 0 8 0 namei 1024 5577 0 5577 1 0 1 1 0 8 1 vcpupl 1984 1 0 0 1 0 1 1 0 8 0 vmpool 520 1 0 0 1 0 1 1 0 8 0 scsiplug 64 1 0 1 1 0 1 1 0 8 1 scxspl 192 6174 0 6174 8 1 7 7 0 8 7 plimitpl 152 30 0 23 1 0 1 1 0 8 0 sigapl 432 370 0 356 2 0 2 2 0 8 0 futexpl 56 5709 0 5708 1 0 1 1 0 8 0 knotepl 112 109 0 89 1 0 1 1 0 8 0 kqueuepl 104 62 0 58 1 0 1 1 0 8 0 pipepl 112 176 0 155 1 0 1 1 0 8 0 fdescpl 424 371 0 356 2 0 2 2 0 8 0 filepl 120 3036 0 2932 5 0 5 5 0 8 1 lockfpl 104 53 0 52 1 0 1 1 0 8 0 lockfspl 48 18 0 17 1 0 1 1 0 8 0 sessionpl 112 18 0 8 1 0 1 1 0 8 0 pgrppl 48 30 0 20 1 0 1 1 0 8 0 ucredpl 96 246 0 239 1 0 1 1 0 8 0 zombiepl 144 356 0 356 1 0 1 1 0 8 1 processpl 864 387 0 356 4 0 4 4 0 8 0 procpl 632 607 0 567 4 0 4 4 0 8 0 sosppl 128 7 0 7 1 0 1 1 0 8 1 sockpl 384 1236 0 1215 7 0 7 7 0 8 4 mcl64k 65536 375 0 375 2 0 2 2 0 8 2 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl12k 12288 92 0 92 1 0 1 1 0 8 1 mcl9k 9216 2 0 2 1 0 1 1 0 8 1 mcl8k 8192 9 0 9 1 0 1 1 0 8 1 mcl4k 4096 21 0 21 2 1 1 1 0 8 1 mcl2k 2048 67625 0 67579 17 6 11 15 0 8 4 mtagpl 80 14 0 4 2 1 1 1 0 8 0 mbufpl 256 109403 0 109286 16 3 13 13 0 8 1 bufpl 256 6635 0 1764 305 0 305 305 0 8 0 anonpl 16 55662 0 37848 76 2 74 74 0 62 0 amapchunkpl 152 1751 0 1625 9 1 8 8 0 158 2 amappl16 192 1966 0 896 55 0 55 55 0 8 1 amappl15 184 35 0 35 1 0 1 1 0 8 1 amappl14 176 101 0 96 1 0 1 1 0 8 0 amappl12 160 6 0 4 1 0 1 1 0 8 0 amappl11 152 48 0 36 1 0 1 1 0 8 0 amappl10 144 11 0 9 1 0 1 1 0 8 0 amappl9 136 662 0 654 1 0 1 1 0 8 0 amappl8 128 243 0 213 1 0 1 1 0 8 0 amappl7 120 41 0 37 1 0 1 1 0 8 0 amappl6 112 73 0 59 1 0 1 1 0 8 0 amappl5 104 155 0 144 1 0 1 1 0 8 0 amappl4 96 533 0 505 1 0 1 1 0 8 0 amappl3 88 230 0 220 1 0 1 1 0 8 0 amappl2 80 2102 0 2026 3 1 2 3 0 8 0 amappl1 72 16387 0 15974 27 18 9 20 0 8 0 amappl 80 839 0 799 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 12 0 0 1 0 1 1 0 8 0 uaddrrnd 24 372 0 356 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 372 0 356 1 0 1 1 0 8 0 vmmpekpl 168 6599 0 6573 2 0 2 2 0 8 0 vmmpepl 168 52430 0 50203 139 7 132 132 0 357 35 vmsppl 272 370 0 356 2 1 1 2 0 8 0 pdppl 4096 750 0 713 6 1 5 6 0 8 0 pvpl 32 168010 0 147135 176 1 175 175 0 265 1 pmappl 200 371 0 356 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 458 0 14 13 0 13 13 0 8 0