login: uvm_fault(0xffffffff825fcaf8, 0xffff800000ae8074, 0, 1) -> e kernel: page fault trap, code=0 Stopped at rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xffffffff825fcaf8, 0xffff800000ae8074, 0, 1) -> e rtable_satoplen(2,ffff800000ae7f78) at rtable_satoplen+0x150 sys/net/rtable.c:894 end trace frame: 0xffff800021b94a50, count: 0 ddb{0}> trace rtable_satoplen(2,ffff800000ae7f78) at rtable_satoplen+0x150 sys/net/rtable.c:894 rtable_lookup(0,fffffd807dead820,ffff800000ae7f78,ffff800000ae7f58,4) at rtable_lookup+0xeb sys/net/rtable.c:391 rtrequest_delete(ffff800021b94af0,4,ffff800000a68000,ffff800021b94bc0,0) at rtrequest_delete+0xe3 sys/net/route.c:775 rt_ifa_del(ffff800000ae7f00,800100,ffff800000ae7f58,0) at rt_ifa_del+0x3c3 sys/net/route.c:1191 in_purgeaddr(ffff800000ae7f00) at in_purgeaddr+0xc6 in_remove_prefix sys/netinet/in.c:738 [inline] in_purgeaddr(ffff800000ae7f00) at in_purgeaddr+0xc6 in_ifscrub sys/netinet/in.c:562 [inline] in_purgeaddr(ffff800000ae7f00) at in_purgeaddr+0xc6 sys/netinet/in.c:678 in_ifinit(ffff800000a68000,ffff800000ae7f00,ffff800021b94f40,1) at in_ifinit+0x234 sys/netinet/in.c:664 in_ioctl_change_ifaddr(8040691a,ffff800021b94f30,ffff800000a68000,1) at in_ioctl_change_ifaddr+0x5de sys/netinet/in.c:452 in_ioctl(8040691a,ffff800021b94f30,ffff800000a68000,1) at in_ioctl+0x205 sys/netinet/in.c:234 ifioctl(fffffd806f6cc900,8040691a,ffff800021b94f30,ffff800020abeee8) at ifioctl+0xb64 sys/net/if.c:2202 sys_ioctl(ffff800020abeee8,ffff800021b95048,ffff800021b95090) at sys_ioctl+0x5b9 syscall(ffff800021b95110) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff800021b95110) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,7abc4bb3010) at Xsyscall+0x128 end of kernel end trace frame: 0x7ae4a5b0ff0, count: -12 ddb{0}> show registers rdi 0 rsi 0xfd rbp 0xffff800021b949b0 rbx 0xffffffffffffff07 rdx 0xffff800000ae7f7c rcx 0xffff800000ae8075 rax 0xffff800000ae8075 r8 0x4 r9 0x5 r10 0xce2b984654a4555d r11 0x71757cc3ccb9f02b r12 0 r13 0xffff800000ae8075 r14 0xffffffff824d1710 inetdomain r15 0x4 rip 0xffffffff81facdd0 rtable_satoplen+0x150 cs 0x8 rflags 0x10283 __ALIGN_SIZE+0xf283 rsp 0xffff800021b94960 ss 0x10 rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb{0}> show proc PROC (syz-executor.0) pid=231624 stat=onproc flags process=0 proc=4000000 pri=62, usrpri=62, nice=20 forw=0xffffffffffffffff, list=0xffff800020abfb40,0xffffffff8262e560 process=0xffff800020adc700 user=0xffff800021b90000, vmspace=0xfffffd807f00a000 estcpu=12, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 81096 16169 15615 0 2 0 syz-executor.0 *81096 231624 15615 0 7 0x4000000 syz-executor.0 64418 91109 38800 0 2 0 syz-executor.1 64418 458324 38800 0 7 0x4000000 syz-executor.1 38800 188116 89866 0 2 0x482 syz-executor.1 15615 326316 89866 0 2 0x482 syz-executor.0 89866 31994 62460 0 3 0x82 thrsleep syz-fuzzer 89866 324927 62460 0 3 0x4000082 nanosleep syz-fuzzer 89866 393004 62460 0 3 0x4000082 thrsleep syz-fuzzer 89866 126242 62460 0 3 0x4000082 thrsleep syz-fuzzer 89866 456683 62460 0 3 0x4000082 thrsleep syz-fuzzer 89866 376603 62460 0 2 0x4000482 syz-fuzzer 89866 315514 62460 0 3 0x4000082 kqread syz-fuzzer 89866 77348 62460 0 3 0x4000082 thrsleep syz-fuzzer 89866 99780 62460 0 3 0x4000082 thrsleep syz-fuzzer 89866 196666 62460 0 3 0x4000082 thrsleep syz-fuzzer 62460 295335 19610 0 3 0x10008a pause ksh 19610 222689 52048 0 3 0x92 select sshd 56502 186987 1 0 3 0x100083 ttyin getty 52048 15665 1 0 3 0x80 select sshd 88157 306422 99839 74 3 0x100092 bpf pflogd 99839 105803 1 0 3 0x80 netio pflogd 63326 371180 99682 73 3 0x100090 kqread syslogd 99682 53747 1 0 3 0x100082 netio syslogd 68241 184956 1 77 3 0x100090 poll dhclient 13028 157812 1 0 3 0x80 poll dhclient 5455 451329 0 0 2 0x14200 zerothread 9947 243187 0 0 3 0x14200 aiodoned aiodoned 35513 371529 0 0 3 0x14200 syncer update 91601 440486 0 0 3 0x14200 cleaner cleaner 15759 104528 0 0 3 0x14200 reaper reaper 13553 218846 0 0 3 0x14200 pgdaemon pagedaemon 70108 238142 0 0 3 0x14200 bored crynlk 73430 49194 0 0 3 0x14200 bored crypto 63559 334792 0 0 3 0x40014200 acpi0 acpi0 98902 16952 0 0 3 0x40014200 idle1 27755 100262 0 0 3 0x14200 bored softnet 29392 82597 0 0 3 0x14200 bored systqmp 79751 102269 0 0 3 0x14200 bored systq 71145 52287 0 0 2 0x40014200 softclock 6223 160464 0 0 3 0x40014200 idle0 20148 393869 0 0 3 0x14200 bored smr 1 198478 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 81096 (syz-executor.0) thread 0xffff800020abeee8 (231624) exclusive rwlock netlock r = 0 (0xffffffff8247e1a8) #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 (0xffffffff826382b0) #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{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9477 6400K 7168K 78643K 10702 0 0 pcb 13 8K 8K 78643K 37 0 0 rtable 108 4K 4K 78643K 250 0 0 ifaddr 44 11K 11K 78643K 61 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1471 0 0 iov 0 0K 12K 78643K 10 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1226 77K 77K 78643K 1264 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 12 0K 0K 78643K 14 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12765 0 0 file desc 6 17K 25K 78643K 77 0 0 proc 60 63K 95K 78643K 425 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 2 0 0 in_multi 33 2K 2K 78643K 35 0 0 ether_multi 1 0K 0K 78643K 2 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 42 185K 185K 78643K 42 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 105 21K 22K 78643K 1147 0 0 UVM aobj 5 2K 2K 78643K 7 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 22 0 0 NDP 7 0K 0K 78643K 15 0 0 temp 105 3550K 3615K 78643K 3652 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 8 0 2 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 25 0 23 1 0 1 1 0 8 0 rtentry 112 51 0 7 2 0 2 2 0 8 0 unpcb 120 29 0 19 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpcb 544 29 0 25 1 0 1 1 0 8 0 inpcb 280 106 0 97 1 0 1 1 0 8 0 nd6 48 4 0 0 1 0 1 1 0 8 0 ppxss 1128 4 0 4 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 13 0 0 1 0 1 1 0 8 0 pfstkey 112 13 0 0 1 0 1 1 0 8 0 pfstate 328 13 0 0 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 256 227 0 9 15 0 15 15 0 8 0 art_table 32 228 0 9 2 0 2 2 0 8 0 art_node 16 50 0 10 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 8 1 0 1 1 0 8 1 semapl 112 12 0 2 1 0 1 1 0 8 0 shmpl 112 5 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1505 0 98 46 0 46 46 0 8 0 ffsino 272 1505 0 98 95 0 95 95 0 8 1 nchpl 144 1812 0 193 61 0 61 61 0 8 0 uvmvnodes 72 1581 0 0 29 0 29 29 0 8 0 vnodes 208 1581 0 0 84 0 84 84 0 8 0 namei 1024 4719 0 4719 1 0 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 scxspl 192 4761 0 4761 2 1 1 2 0 8 1 plimitpl 152 19 0 11 1 0 1 1 0 8 0 sigapl 432 277 0 261 3 0 3 3 0 8 1 futexpl 56 982 0 982 1 0 1 1 0 8 1 knotepl 112 55 0 36 1 0 1 1 0 8 0 kqueuepl 104 8 0 6 1 0 1 1 0 8 0 pipepl 112 178 0 159 1 0 1 1 0 8 0 fdescpl 488 278 0 261 3 0 3 3 0 8 0 filepl 152 1502 0 1398 5 0 5 5 0 8 1 lockfpl 104 37 0 36 1 0 1 1 0 8 0 lockfspl 48 10 0 9 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 18 0 7 1 0 1 1 0 8 0 ucredpl 96 96 0 86 1 0 1 1 0 8 0 zombiepl 144 261 0 261 1 0 1 1 0 8 1 processpl 896 293 0 261 4 0 4 4 0 8 0 procpl 632 388 0 345 4 0 4 4 0 8 0 sockpl 384 160 0 139 3 0 3 3 0 8 0 mcl64k 65536 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 207 0 0 25 0 25 25 0 8 0 mtagpl 80 20 0 0 1 0 1 1 0 8 0 mbufpl 256 216 0 0 13 0 13 13 0 8 0 bufpl 256 6251 0 1315 309 0 309 309 0 8 0 anonpl 16 42302 0 24669 72 1 71 71 0 124 0 amapchunkpl 152 1289 0 1176 7 0 7 7 0 158 1 amappl16 192 1326 0 329 50 0 50 50 0 8 0 amappl15 184 1 0 1 1 0 1 1 0 8 1 amappl14 176 29 0 27 1 0 1 1 0 8 0 amappl13 168 22 0 20 1 0 1 1 0 8 0 amappl12 160 7 0 6 1 0 1 1 0 8 0 amappl11 152 53 0 38 1 0 1 1 0 8 0 amappl10 144 12 0 7 1 0 1 1 0 8 0 amappl9 136 630 0 622 1 0 1 1 0 8 0 amappl8 128 179 0 152 2 0 2 2 0 8 0 amappl7 120 39 0 36 1 0 1 1 0 8 0 amappl6 112 84 0 73 1 0 1 1 0 8 0 amappl5 104 128 0 115 1 0 1 1 0 8 0 amappl4 96 547 0 514 1 0 1 1 0 8 0 amappl3 88 111 0 103 1 0 1 1 0 8 0 amappl2 80 1306 0 1228 3 0 3 3 0 8 1 amappl1 72 16045 0 15594 25 8 17 20 0 8 7 amappl 80 636 0 597 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 6 0 2 1 0 1 1 0 8 0 uaddrrnd 24 278 0 261 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 278 0 261 1 0 1 1 0 8 0 vmmpekpl 168 6227 0 6195 3 1 2 2 0 8 0 vmmpepl 168 41402 0 39172 128 3 125 125 0 357 28 vmsppl 368 277 0 261 2 0 2 2 0 8 0 pdppl 4096 563 0 522 6 0 6 6 0 8 0 pvpl 32 142378 0 121535 176 0 176 176 0 265 6 pmappl 232 277 0 261 2 0 2 2 0 8 1 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 477 0 3 14 0 14 14 0 8 0