login: uvm_fault(0xffffffff824f6a40, 0xffff800000a6c076, 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(0xffffffff824f6a40, 0xffff800000a6c076, 0, 1) -> e rtable_satoplen(2,ffff800000a6bf78) at rtable_satoplen+0x150 sys/net/rtable.c:894 end trace frame: 0xffff800014928880, count: 0 ddb> trace rtable_satoplen(2,ffff800000a6bf78) at rtable_satoplen+0x150 sys/net/rtable.c:894 rtable_lookup(0,fffffd8032008020,ffff800000a6bf78,ffff800000a6bf58,4) at rtable_lookup+0xe0 sys/net/rtable.c:391 rtrequest_delete(ffff800014928920,4,ffff800000a63800,ffff8000149289f0,0) at rtrequest_delete+0xe3 sys/net/route.c:775 rt_ifa_del(ffff800000a6bf00,800100,ffff800000a6bf58,0) at rt_ifa_del+0x3c3 sys/net/route.c:1191 in_purgeaddr(ffff800000a6bf00) at in_purgeaddr+0xc6 in_remove_prefix sys/netinet/in.c:738 [inline] in_purgeaddr(ffff800000a6bf00) at in_purgeaddr+0xc6 in_ifscrub sys/netinet/in.c:562 [inline] in_purgeaddr(ffff800000a6bf00) at in_purgeaddr+0xc6 sys/netinet/in.c:678 in_ifinit(ffff800000a63800,ffff800000a6bf00,ffff800014928d70,1) at in_ifinit+0x234 sys/netinet/in.c:664 in_ioctl_change_ifaddr(8040691a,ffff800014928d60,ffff800000a63800,1) at in_ioctl_change_ifaddr+0x5de sys/netinet/in.c:452 in_ioctl(8040691a,ffff800014928d60,ffff800000a63800,1) at in_ioctl+0x205 sys/netinet/in.c:234 ifioctl(fffffd803701ec00,8040691a,ffff800014928d60,ffff8000ffff84f8) at ifioctl+0xb34 sys/net/if.c:2202 sys_ioctl(ffff8000ffff84f8,ffff800014928e78,ffff800014928ec0) at sys_ioctl+0x5b9 syscall(ffff800014928f40) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,54a3eb8010) at Xsyscall+0x128 end of kernel end trace frame: 0x5791033890, count: -12 ddb> show registers rdi 0 rsi 0xff rbp 0xffff8000149287e0 rbx 0xffffffffffffff05 rdx 0xffff800000a6bf7c rcx 0xffff800000a6c077 rax 0xffff800000a6c077 r8 0x4 r9 0x5 r10 0xf5649a2bfcf63112 r11 0xfc895f4dcc4addc5 r12 0 r13 0xffff800000a6c077 r14 0xffffffff82495798 inetdomain r15 0x4 rip 0xffffffff818b3560 rtable_satoplen+0x150 cs 0x8 rflags 0x10287 __ALIGN_SIZE+0xf287 rsp 0xffff800014928790 ss 0x10 rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb> show proc PROC (syz-executor.0) pid=74591 stat=onproc flags process=0 proc=4000000 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff8008,0xffffffff82574928 process=0xffff8000148a3458 user=0xffff800014923000, vmspace=0xfffffd803f014330 estcpu=31, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 76632 503683 31876 0 2 0 syz-executor.0 *76632 74591 31876 0 7 0x4000000 syz-executor.0 31876 466628 6276 0 3 0x82 nanosleep syz-executor.0 6276 191451 60698 0 3 0x82 thrsleep syz-execprog 6276 267489 60698 0 3 0x4000082 thrsleep syz-execprog 6276 329871 60698 0 3 0x4000082 thrsleep syz-execprog 6276 441087 60698 0 3 0x4000082 thrsleep syz-execprog 6276 87223 60698 0 3 0x4000082 kqread syz-execprog 6276 129056 60698 0 3 0x4000082 thrsleep syz-execprog 6276 170712 60698 0 3 0x4000082 thrsleep syz-execprog 60698 451681 95463 0 3 0x10008a pause ksh 95463 238549 64199 0 3 0x92 select sshd 61731 23959 1 0 3 0x100083 ttyin getty 64199 115604 1 0 3 0x80 select sshd 96319 210790 68485 73 3 0x100090 kqread syslogd 68485 219966 1 0 3 0x100082 netio syslogd 17058 122360 1 77 3 0x100090 poll dhclient 60117 496329 1 0 3 0x80 poll dhclient 68829 88883 0 0 2 0x14200 zerothread 98529 290460 0 0 3 0x14200 aiodoned aiodoned 42606 390896 0 0 3 0x14200 syncer update 38896 522796 0 0 3 0x14200 cleaner cleaner 38482 470723 0 0 3 0x14200 reaper reaper 41333 381624 0 0 3 0x14200 pgdaemon pagedaemon 8437 461955 0 0 3 0x14200 bored crynlk 8576 12750 0 0 3 0x14200 bored crypto 92707 140478 0 0 3 0x40014200 acpi0 acpi0 35053 192770 0 0 3 0x14200 bored softnet 3817 349084 0 0 3 0x14200 bored systqmp 12708 351914 0 0 3 0x14200 bored systq 16934 24154 0 0 3 0x40014200 bored softclock 54129 463606 0 0 3 0x40014200 idle0 10048 479812 0 0 3 0x14200 bored smr 1 283983 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 9433 6309K 6309K 78643K 10526 0 0 pcb 13 8K 8K 78643K 17 0 0 rtable 83 2K 2K 78643K 153 0 0 ifaddr 29 8K 8K 78643K 40 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 14 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1180 74K 74K 78643K 1185 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 7 1K 1K 78643K 7 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 3 8K 12K 78643K 23 0 0 proc 47 38K 54K 78643K 307 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 in_multi 22 1K 1K 78643K 22 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 172 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 69 11K 12K 78643K 865 0 0 UVM aobj 2 2K 2K 78643K 2 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 NDP 6 0K 0K 78643K 6 0 0 temp 39 3517K 3581K 78643K 3068 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 4 0 0 1 0 1 1 0 8 0 rtpcb 80 17 0 15 1 0 1 1 0 8 0 rtentry 112 34 0 1 1 0 1 1 0 8 0 unpcb 120 27 0 19 1 0 1 1 0 8 0 syncache 264 5 0 5 2 1 1 1 0 8 1 tcpcb 544 8 0 5 1 0 1 1 0 8 0 inpcb 280 38 0 30 1 0 1 1 0 8 0 nd6 48 2 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 167 0 0 11 0 11 11 0 8 0 art_table 32 168 0 0 2 0 2 2 0 8 0 art_node 16 33 0 3 1 0 1 1 0 8 0 semapl 112 5 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1418 0 24 45 0 45 45 0 8 0 ffsino 240 1418 0 24 83 0 83 83 0 8 0 nchpl 144 1663 0 59 60 0 60 60 0 8 0 uvmvnodes 72 1427 0 0 26 0 26 26 0 8 0 vnodes 208 1427 0 0 76 0 76 76 0 8 0 namei 1024 3871 0 3871 2 1 1 1 0 8 1 scxspl 192 4131 0 4131 10 9 1 7 0 8 1 plimitpl 152 14 0 8 1 0 1 1 0 8 0 sigapl 432 202 0 190 2 0 2 2 0 8 0 futexpl 56 156 0 156 1 0 1 1 0 8 1 knotepl 112 39 0 28 1 0 1 1 0 8 0 kqueuepl 104 2 0 0 1 0 1 1 0 8 0 pipepl 112 138 0 125 2 1 1 1 0 8 0 fdescpl 424 203 0 190 2 0 2 2 0 8 0 filepl 120 993 0 938 2 0 2 2 0 8 0 lockfpl 104 5 0 4 1 0 1 1 0 8 0 lockfspl 48 3 0 2 1 0 1 1 0 8 0 sessionpl 112 18 0 9 1 0 1 1 0 8 0 pgrppl 48 18 0 9 1 0 1 1 0 8 0 ucredpl 96 47 0 40 1 0 1 1 0 8 0 zombiepl 144 190 0 190 2 1 1 1 0 8 1 processpl 864 217 0 190 4 0 4 4 0 8 0 procpl 632 229 0 195 3 0 3 3 0 8 0 sockpl 384 82 0 64 2 0 2 2 0 8 0 mcl4k 4096 10 0 10 2 1 1 1 0 8 1 mcl2k 2048 5483 0 5443 9 2 7 9 0 8 1 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9489 0 9403 7 1 6 6 0 8 0 bufpl 256 5789 0 1331 279 0 279 279 0 8 0 anonpl 16 20949 0 19374 15 2 13 13 0 62 6 amapchunkpl 152 696 0 634 5 0 5 5 0 158 2 amappl16 192 150 0 110 3 0 3 3 0 8 0 amappl15 184 1 0 1 1 0 1 1 0 8 1 amappl14 176 27 0 25 2 1 1 1 0 8 0 amappl12 160 13 0 10 2 1 1 1 0 8 0 amappl11 152 41 0 30 1 0 1 1 0 8 0 amappl10 144 14 0 12 2 1 1 1 0 8 0 amappl9 136 424 0 416 1 0 1 1 0 8 0 amappl8 128 114 0 104 1 0 1 1 0 8 0 amappl7 120 30 0 27 1 0 1 1 0 8 0 amappl6 112 73 0 63 1 0 1 1 0 8 0 amappl5 104 129 0 119 1 0 1 1 0 8 0 amappl4 96 430 0 407 1 0 1 1 0 8 0 amappl3 88 117 0 111 1 0 1 1 0 8 0 amappl2 80 870 0 808 4 1 3 3 0 8 1 amappl1 72 13554 0 13160 27 10 17 20 0 8 8 amappl 80 440 0 413 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 dma64 64 259 0 259 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 1 0 0 1 0 1 1 0 8 0 uaddrrnd 24 203 0 190 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 203 0 190 1 0 1 1 0 8 0 vmmpekpl 168 6200 0 6185 1 0 1 1 0 8 0 vmmpepl 168 29470 0 28569 94 18 76 76 0 357 36 vmsppl 272 202 0 190 1 0 1 1 0 8 0 pdppl 4096 412 0 380 5 0 5 5 0 8 0 pvpl 32 104675 0 100813 119 6 113 113 0 265 81 pmappl 200 202 0 190 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 406 0 7 12 0 12 12 0 8 0