login: uvm_fault(0xffffffff8257b240, 0xffff800000ada074, 0, 1) -> e kernel: page fault trap, code=0 Stopped at rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic kernel page fault uvm_fault(0xffffffff8257b240, 0xffff800000ada074, 0, 1) -> e rtable_satoplen(2,ffff800000ad9f78) at rtable_satoplen+0x150 sys/net/rtable.c:894 end trace frame: 0xffff800023bcafd0, count: 0 ddb{1}> trace rtable_satoplen(2,ffff800000ad9f78) at rtable_satoplen+0x150 sys/net/rtable.c:894 rtable_lookup(0,fffffd807e2dc220,ffff800000ad9f78,ffff800000ad9f58,4) at rtable_lookup+0xeb sys/net/rtable.c:391 rtrequest_delete(ffff800023bcb070,4,ffff800000a94800,ffff800023bcb140,0) at rtrequest_delete+0xe3 sys/net/route.c:775 rt_ifa_del(ffff800000ad9f00,800100,ffff800000ad9f58,0) at rt_ifa_del+0x3c3 sys/net/route.c:1191 in_purgeaddr(ffff800000ad9f00) at in_purgeaddr+0xc6 in_remove_prefix sys/netinet/in.c:738 [inline] in_purgeaddr(ffff800000ad9f00) at in_purgeaddr+0xc6 in_ifscrub sys/netinet/in.c:562 [inline] in_purgeaddr(ffff800000ad9f00) at in_purgeaddr+0xc6 sys/netinet/in.c:678 in_ifinit(ffff800000a94800,ffff800000ad9f00,ffff800023bcb4c0,1) at in_ifinit+0x234 sys/netinet/in.c:664 in_ioctl_change_ifaddr(8040691a,ffff800023bcb4b0,ffff800000a94800,1) at in_ioctl_change_ifaddr+0x5de sys/netinet/in.c:452 in_ioctl(8040691a,ffff800023bcb4b0,ffff800000a94800,1) at in_ioctl+0x205 sys/netinet/in.c:234 ifioctl(fffffd806e986908,8040691a,ffff800023bcb4b0,ffff800020a893d8) at ifioctl+0xb64 sys/net/if.c:2202 sys_ioctl(ffff800020a893d8,ffff800023bcb5c8,ffff800023bcb610) at sys_ioctl+0x5b9 syscall(ffff800023bcb690) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff800023bcb690) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,319b68890e0) at Xsyscall+0x128 end of kernel end trace frame: 0x31cb2df2cc0, count: -12 ddb{1}> show registers rdi 0 rsi 0xfd rbp 0xffff800023bcaf30 rbx 0xffffffffffffff07 rdx 0xffff800000ad9f7c rcx 0xffff800000ada075 rax 0xffff800000ada075 r8 0x4 r9 0x5 r10 0xe90f8947723076b r11 0x4b8c32132bc6fdd2 r12 0 r13 0xffff800000ada075 r14 0xffffffff825165d0 inetdomain r15 0x4 rip 0xffffffff81b500e0 rtable_satoplen+0x150 cs 0x8 rflags 0x10283 __ALIGN_SIZE+0xf283 rsp 0xffff800023bcaee0 ss 0x10 rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb{1}> show proc PROC (syz-executor.1) pid=155113 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020a88018,0xffffffff8264c6f8 process=0xffff800020add180 user=0xffff800023bc6000, vmspace=0xfffffd807f00aa10 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 68510 304094 90815 0 7 0 syz-executor.1 68510 202684 90815 0 3 0x4000080 fsleep syz-executor.1 *68510 155113 90815 0 7 0x4000000 syz-executor.1 76698 233872 64222 60929 3 0x90 nanosleep syz-executor.0 76698 90401 64222 60929 3 0x4000090 fsleep syz-executor.0 76698 18775 64222 60929 3 0x4000090 pipewr syz-executor.0 90815 344441 83 0 3 0x82 nanosleep syz-executor.1 64222 214821 83 0 3 0x82 nanosleep syz-executor.0 83 295091 71411 0 3 0x82 kqread syz-fuzzer 83 243092 71411 0 3 0x4000082 nanosleep syz-fuzzer 83 42133 71411 0 3 0x4000082 thrsleep syz-fuzzer 83 294733 71411 0 3 0x4000082 thrsleep syz-fuzzer 83 113536 71411 0 3 0x4000082 thrsleep syz-fuzzer 83 185819 71411 0 3 0x4000082 thrsleep syz-fuzzer 83 477812 71411 0 3 0x4000082 thrsleep syz-fuzzer 83 91471 71411 0 3 0x4000082 thrsleep syz-fuzzer 83 98241 71411 0 3 0x4000082 nanosleep syz-fuzzer 83 313290 71411 0 3 0x4000082 thrsleep syz-fuzzer 71411 109661 45432 0 3 0x10008a pause ksh 45432 136044 87913 0 3 0x92 select sshd 21983 427111 1 0 3 0x100083 ttyin getty 87913 330524 1 0 3 0x80 select sshd 6325 342430 51677 74 3 0x100092 bpf pflogd 51677 109806 1 0 3 0x80 netio pflogd 10266 396932 95696 73 3 0x100090 kqread syslogd 95696 392328 1 0 3 0x100082 netio syslogd 45799 382947 1 77 3 0x100090 poll dhclient 63791 368880 1 0 3 0x80 poll dhclient 41775 154926 0 0 3 0x14200 pgzero zerothread 12039 88595 0 0 3 0x14200 aiodoned aiodoned 17628 85909 0 0 3 0x14200 syncer update 56550 212483 0 0 3 0x14200 cleaner cleaner 56176 244292 0 0 3 0x14200 reaper reaper 34855 501698 0 0 3 0x14200 pgdaemon pagedaemon 25762 284175 0 0 3 0x14200 bored crynlk 3094 135008 0 0 3 0x14200 bored crypto 23688 238940 0 0 3 0x40014200 acpi0 acpi0 11675 352974 0 0 3 0x40014200 idle1 4314 424389 0 0 3 0x14200 bored softnet 9437 132574 0 0 3 0x14200 bored systqmp 71547 269563 0 0 3 0x14200 bored systq 91685 296134 0 0 3 0x40014200 bored softclock 10202 312243 0 0 3 0x40014200 idle0 91909 53315 0 0 3 0x14200 bored smr 1 341216 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 68510 (syz-executor.1) thread 0xffff800020a893d8 (155113) exclusive rwlock netlock r = 0 (0xffffffff824e8728) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 in_ioctl_change_ifaddr+0x3f #2 in_ioctl+0x205 sys/netinet/in.c:234 #3 ifioctl+0xb64 sys/net/if.c:2202 #4 sys_ioctl+0x5b9 #5 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] #5 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 #6 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff8266bc58) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 syscall+0x400 mi_syscall sys/sys/syscall_mi.h:83 [inline] #1 syscall+0x400 sys/arch/amd64/amd64/trap.c:555 #2 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9484 6394K 7553K 78643K 10955 0 0 pcb 13 8K 8K 78643K 49 0 0 rtable 105 3K 3K 78643K 221 0 0 ifaddr 46 11K 11K 78643K 55 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1475 0 0 iov 0 0K 16K 78643K 14 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1235 78K 78K 78643K 1313 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 1K 1K 78643K 2 0 0 sem 4 0K 0K 78643K 4 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12765 0 0 file desc 6 17K 25K 78643K 97 0 0 sigio 0 0K 0K 78643K 5 0 0 proc 60 63K 95K 78643K 442 0 0 subproc 32 2K 2K 78643K 34 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 5 0 0 in_multi 33 2K 2K 78643K 33 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 48 212K 212K 78643K 48 0 0 exec 0 0K 1K 78643K 213 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 106 21K 24K 78643K 1224 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 ip6_options 0 0K 0K 78643K 25 0 0 NDP 8 0K 0K 78643K 14 0 0 temp 113 3555K 3621K 78643K 3747 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 6 0 0 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 87 0 85 1 0 1 1 0 8 0 rtentry 112 45 0 1 2 0 2 2 0 8 0 unpcb 120 83 0 73 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 52 0 52 1 1 0 1 0 8 0 tcpcb 544 34 0 30 1 0 1 1 0 8 0 inpcb 280 136 0 127 2 0 2 2 0 8 1 nd6 48 4 0 0 1 0 1 1 0 8 0 pffrag 232 2 0 2 1 0 1 1 0 482 1 pffrnode 88 2 0 2 1 0 1 1 0 8 1 pffrent 40 90 0 90 1 0 1 1 0 8 1 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 20 0 1 1 0 1 1 0 8 0 pfstkey 112 20 0 1 1 0 1 1 0 8 0 pfstate 328 20 0 1 2 0 2 2 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 212 0 0 14 0 14 14 0 8 0 art_table 32 213 0 0 2 0 2 2 0 8 0 art_node 16 44 0 4 1 0 1 1 0 8 0 sysvmsgpl 40 13 0 8 1 0 1 1 0 8 0 semapl 112 2 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1519 0 114 46 0 46 46 0 8 0 ffsino 272 1519 0 114 94 0 94 94 0 8 0 nchpl 144 1850 0 226 61 0 61 61 0 8 0 uvmvnodes 72 1644 0 0 30 0 30 30 0 8 0 vnodes 208 1644 0 0 87 0 87 87 0 8 0 namei 1024 4879 0 4879 1 0 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 scxspl 192 5186 0 5186 8 1 7 7 0 8 7 plimitpl 152 22 0 14 1 0 1 1 0 8 0 sigapl 432 297 0 281 3 1 2 3 0 8 0 futexpl 56 1861 0 1859 1 0 1 1 0 8 0 knotepl 112 69 0 50 1 0 1 1 0 8 0 kqueuepl 104 33 0 31 1 0 1 1 0 8 0 pipepl 112 284 0 263 2 0 2 2 0 8 1 fdescpl 488 298 0 281 3 0 3 3 0 8 0 filepl 152 1863 0 1759 8 1 7 7 0 8 2 lockfpl 104 45 0 44 1 0 1 1 0 8 0 lockfspl 48 19 0 18 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 36 0 25 1 0 1 1 0 8 0 ucredpl 96 94 0 84 1 0 1 1 0 8 0 zombiepl 144 281 0 281 1 0 1 1 0 8 1 processpl 896 313 0 281 4 0 4 4 0 8 0 procpl 632 457 0 412 5 0 5 5 0 8 1 srpgc 64 2 0 2 1 0 1 1 0 8 1 sockpl 384 306 0 285 6 0 6 6 0 8 3 mcl64k 65536 1 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 1 0 0 1 0 1 1 0 8 0 mcl4k 4096 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 159 0 0 19 0 19 19 0 8 0 mtagpl 80 10 0 0 1 0 1 1 0 8 0 mbufpl 256 341 0 0 21 0 21 21 0 8 0 bufpl 256 6430 0 1314 320 0 320 320 0 8 0 anonpl 16 57957 0 39241 93 1 92 92 0 124 15 amapchunkpl 152 1670 0 1533 11 0 11 11 0 158 4 amappl16 192 1872 0 798 64 2 62 62 0 8 8 amappl15 184 67 0 62 1 0 1 1 0 8 0 amappl14 176 31 0 28 1 0 1 1 0 8 0 amappl12 160 7 0 5 1 0 1 1 0 8 0 amappl11 152 49 0 34 1 0 1 1 0 8 0 amappl10 144 47 0 38 1 0 1 1 0 8 0 amappl9 136 619 0 613 1 0 1 1 0 8 0 amappl8 128 163 0 141 1 0 1 1 0 8 0 amappl7 120 71 0 65 1 0 1 1 0 8 0 amappl6 112 76 0 65 1 0 1 1 0 8 0 amappl5 104 130 0 116 1 0 1 1 0 8 0 amappl4 96 560 0 528 1 0 1 1 0 8 0 amappl3 88 114 0 108 1 0 1 1 0 8 0 amappl2 80 1463 0 1382 3 1 2 3 0 8 0 amappl1 72 16217 0 15763 25 15 10 20 0 8 0 amappl 80 710 0 666 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 1 0 0 1 0 1 1 0 8 0 uaddrrnd 24 298 0 281 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 298 0 281 1 0 1 1 0 8 0 vmmpekpl 168 6649 0 6619 2 0 2 2 0 8 0 vmmpepl 168 44303 0 41990 139 5 134 136 0 357 33 vmsppl 368 297 0 281 2 0 2 2 0 8 0 pdppl 4096 603 0 562 6 0 6 6 0 8 0 pvpl 32 165032 0 143059 212 0 212 212 0 265 34 pmappl 232 297 0 281 2 1 1 2 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 490 0 3 14 0 14 14 0 8 0