uvm_fault(0xffffffff82574690, 0xffff800000a89000, 0, 1) -> e kernel: page fault trap, code=0 Stopped at memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xffffffff82574690, 0xffff800000a89000, 0, 1) -> e memcpy() at memcpy+0x15 end trace frame: 0xffff800021fa0a20, count: 0 ddb{0}> trace memcpy() at memcpy+0x15 rtrequest(1,ffff800021fa0a60,4,0,0) at rtrequest+0x85e sys/net/route.c:930 in6_update_ifa(ffff800000a4a800,ffff800021fa0dd0,0) at in6_update_ifa+0x1742 sys/netinet6/in6.c:810 in6_ioctl_change_ifaddr(8080691a,ffff800021fa0dd0,ffff800000a4a800) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd8064fc81b8,8080691a,ffff800021fa0dd0,ffff800020ed9878) at ifioctl+0xe70 sys/net/if.c:2289 soo_ioctl(fffffd806cb85270,8080691a,ffff800021fa0dd0,ffff800020ed9878) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020ed9878,ffff800021fa0ee8,ffff800021fa0f30) at sys_ioctl+0x4a5 syscall(ffff800021fa0fb0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021fa0fb0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb9b0ff29970, count: -9 ddb{0}> show registers rdi 0xffff800000a884c0 rsi 0xffff800000a89000 rbp 0xffff800021fa0920 rbx 0xffff800000a88f40 rdx 0xe8 rcx 0x5 rax 0xfffffffffffff4c0 r8 0x70 r9 0x1 r10 0x8c98737870a40089 r11 0xffff800000a88400 r12 0xffff800000a88400 r13 0xe8 r14 0 r15 0xfffffd8067dcdcb8 rip 0xffffffff81d5a365 memcpy+0x15 cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff800021fa08b8 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{0}> show proc PROC (syz-executor.1) pid=465975 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020ed8c48,0xffffffff82664cb8 process=0xffff800020ece7d0 user=0xffff800021f9c000, vmspace=0xfffffd8065466a20 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 68443 65452 23441 0 7 0 syz-executor.1 *68443 465975 23441 0 7 0x4000000 syz-executor.1 14804 75902 21262 0 3 0x80 nanosleep syz-executor.0 14804 124603 21262 0 3 0x4000000 smrbar syz-executor.0 14804 499704 21262 0 3 0x4000080 fsleep syz-executor.0 23441 312102 98819 0 3 0x82 nanosleep syz-executor.1 69275 45818 0 0 3 0x14200 bored sosplice 21262 200270 98819 0 3 0x82 nanosleep syz-executor.0 98819 19454 2509 0 3 0x82 thrsleep syz-fuzzer 98819 249401 2509 0 3 0x4000082 nanosleep syz-fuzzer 98819 489016 2509 0 3 0x4000082 kqread syz-fuzzer 98819 351605 2509 0 3 0x4000082 thrsleep syz-fuzzer 98819 150204 2509 0 3 0x4000082 thrsleep syz-fuzzer 98819 157177 2509 0 3 0x4000082 thrsleep syz-fuzzer 98819 471625 2509 0 3 0x4000082 thrsleep syz-fuzzer 98819 63564 2509 0 3 0x4000082 thrsleep syz-fuzzer 98819 136983 2509 0 3 0x4000082 thrsleep syz-fuzzer 98819 283071 2509 0 3 0x4000082 nanosleep syz-fuzzer 2509 158888 52034 0 3 0x10008a pause ksh 52034 231380 74061 0 3 0x92 select sshd 57128 495925 1 0 3 0x100083 ttyin getty 74061 326083 1 0 3 0x80 select sshd 7613 395301 85681 74 3 0x100092 bpf pflogd 85681 492441 1 0 3 0x80 netio pflogd 12063 176550 17858 73 3 0x100090 kqread syslogd 17858 272889 1 0 3 0x100082 netio syslogd 5054 96172 1 77 3 0x100090 poll dhclient 69505 55434 1 0 3 0x80 poll dhclient 65617 495247 0 0 3 0x14200 bored smr 68684 498089 0 0 3 0x14200 pgzero zerothread 32365 310632 0 0 3 0x14200 aiodoned aiodoned 57401 217372 0 0 3 0x14200 syncer update 21729 15694 0 0 3 0x14200 cleaner cleaner 98414 62638 0 0 3 0x14200 reaper reaper 59283 13859 0 0 3 0x14200 pgdaemon pagedaemon 97598 136539 0 0 3 0x14200 bored crynlk 74930 407738 0 0 3 0x14200 bored crypto 97800 29089 0 0 3 0x40014200 acpi0 acpi0 73799 467500 0 0 3 0x40014200 idle1 7792 178021 0 0 3 0x14200 bored softnet 31908 349112 0 0 3 0x14200 bored systqmp 5359 274137 0 0 3 0x14200 bored systq 64626 311365 0 0 3 0x40014200 bored softclock 29352 69581 0 0 3 0x40014200 idle0 1 132648 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 68443 (syz-executor.1) thread 0xffff800020ed9878 (465975) exclusive rwlock netlock r = 0 (0xffffffff8252c6c8) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 in6_ioctl_change_ifaddr+0x155 sys/netinet6/in6.c:295 #2 ifioctl+0xe70 sys/net/if.c:2289 #3 soo_ioctl+0x27c sys/kern/sys_socket.c:138 #4 sys_ioctl+0x4a5 #5 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #5 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #6 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff8266bb40) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 soo_ioctl+0x26a sys/kern/sys_socket.c:138 #2 sys_ioctl+0x4a5 #3 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #3 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #4 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9551 6626K 7006K 78643K 11965 0 pcb 13 8K 8K 78643K 152 0 rtable 104 12K 12K 78643K 912 0 ifaddr 86 17K 17K 78643K 470 0 counters 45 34K 34K 78643K 213 0 ioctlops 0 0K 4K 78643K 1510 0 iov 0 0K 16K 78643K 79 0 mount 1 1K 1K 78643K 1 0 vnodes 1230 77K 78K 78643K 1696 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 11 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 115 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 196K 290K 78643K 12766 0 file desc 6 17K 25K 78643K 625 0 sigio 0 0K 0K 78643K 11 0 proc 62 63K 95K 78643K 582 0 subproc 32 2K 2K 78643K 68 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 59 0 in_multi 46 2K 2K 78643K 163 0 ether_multi 1 0K 0K 78643K 22 0 mrt 1 0K 0K 78643K 27 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 61 281K 281K 78643K 61 0 exec 0 0K 1K 78643K 286 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 160 138K 138K 78643K 3116 0 UVM aobj 20 7K 7K 78643K 22 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 101 0 NDP 15 0K 0K 78643K 112 0 temp 131 3044K 3109K 78643K 23120 0 kqueue 3 4K 8K 78643K 17 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 11 0 5 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 43 0 41 1 0 1 1 0 8 0 rtentry 112 104 0 65 2 0 2 2 0 8 0 unpcb 120 380 0 370 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 29 0 29 1 1 0 1 0 8 0 tcpcb 544 206 0 202 2 1 1 2 0 8 0 inpcb 280 775 0 766 4 2 2 2 0 8 1 rttmr 72 11 0 11 1 1 0 1 0 8 0 nd6 48 19 0 15 1 0 1 1 0 8 0 pkpcb 40 6 0 6 1 0 1 1 0 8 1 ppxss 1128 1 0 1 1 1 0 1 0 8 0 pffrag 232 2 0 2 1 1 0 1 0 482 0 pffrnode 88 2 0 2 1 1 0 1 0 8 0 pffrent 40 4 0 4 1 1 0 1 0 8 0 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 58 0 21 1 0 1 1 0 8 0 pfstkey 112 58 0 21 2 0 2 2 0 8 0 pfstate 328 58 0 20 5 1 4 4 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 256 435 0 259 14 1 13 13 0 8 0 art_table 32 436 0 259 2 0 2 2 0 8 0 art_node 16 102 0 66 1 0 1 1 0 8 0 sysvmsgpl 40 18 0 9 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 108 0 98 1 0 1 1 0 8 0 shmpl 112 20 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2526 0 1118 89 0 89 89 0 8 0 ffsino 272 2526 0 1118 95 0 95 95 0 8 0 nchpl 144 3614 0 2017 60 0 60 60 0 8 0 uvmvnodes 72 2881 0 0 53 0 53 53 0 8 0 vnodes 208 2881 0 0 152 0 152 152 0 8 0 namei 1024 11241 0 11241 2 1 1 1 0 8 1 percpumem 16 117 0 84 1 0 1 1 0 8 0 vcpupl 1984 13 0 0 2 0 2 2 0 8 0 vmpool 560 15 0 2 1 0 1 1 0 8 0 scxspl 192 10375 0 10375 14 11 3 7 0 8 3 plimitpl 152 56 0 48 1 0 1 1 0 8 0 sigapl 424 835 0 802 4 0 4 4 0 8 0 futexpl 56 8872 0 8871 2 1 1 1 0 8 0 knotepl 112 100 0 81 1 0 1 1 0 8 0 kqueuepl 144 83 0 81 1 0 1 1 0 8 0 pipelkpl 48 192 0 182 1 0 1 1 0 8 0 pipepl 120 384 0 365 1 0 1 1 0 8 0 fdescpl 496 819 0 802 3 0 3 3 0 8 0 filepl 152 5393 0 5288 6 1 5 6 0 8 0 lockfpl 104 172 0 171 1 0 1 1 0 8 0 lockfspl 48 69 0 68 1 0 1 1 0 8 0 sessionpl 112 20 0 9 1 0 1 1 0 8 0 pgrppl 48 28 0 17 1 0 1 1 0 8 0 ucredpl 96 463 0 453 1 0 1 1 0 8 0 zombiepl 144 802 0 802 2 1 1 1 0 8 1 processpl 984 835 0 802 5 0 5 5 0 8 0 procpl 624 2159 0 2114 4 0 4 4 0 8 0 sosppl 128 7 0 7 3 3 0 1 0 8 0 sockpl 400 1205 0 1184 6 3 3 5 0 8 0 mcl64k 65536 11 0 0 2 0 2 2 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 12 0 0 2 0 2 2 0 8 0 mcl2k 2048 163 0 0 20 0 20 20 0 8 0 mtagpl 80 31 0 0 1 0 1 1 0 8 0 mbufpl 256 315 0 0 17 0 17 17 0 8 0 bufpl 280 4911 0 138 341 0 341 341 0 8 0 anonpl 16 91779 0 78610 72 14 58 71 0 124 0 amapchunkpl 152 7608 0 7457 43 23 20 20 0 158 13 amappl16 192 3486 0 2718 50 10 40 49 0 8 1 amappl15 184 102 0 99 1 0 1 1 0 8 0 amappl14 176 73 0 68 1 0 1 1 0 8 0 amappl13 168 84 0 83 1 0 1 1 0 8 0 amappl12 160 368 0 361 2 1 1 1 0 8 0 amappl11 152 241 0 224 1 0 1 1 0 8 0 amappl10 144 19 0 14 1 0 1 1 0 8 0 amappl9 136 382 0 381 1 0 1 1 0 8 0 amappl8 128 415 0 372 2 0 2 2 0 8 0 amappl7 120 132 0 118 1 0 1 1 0 8 0 amappl6 112 193 0 183 1 0 1 1 0 8 0 amappl5 104 764 0 745 1 0 1 1 0 8 0 amappl4 96 734 0 702 1 0 1 1 0 8 0 amappl3 88 170 0 165 1 0 1 1 0 8 0 amappl2 80 5569 0 5483 2 0 2 2 0 8 0 amappl1 72 27771 0 27313 23 13 10 18 0 8 0 amappl 80 2479 0 2421 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 18 0 17 1 0 1 1 0 8 0 aobjpl 64 21 0 2 1 0 1 1 0 8 0 uaddrrnd 24 834 0 804 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 834 0 804 1 0 1 1 0 8 0 vmmpekpl 168 10378 0 10343 2 0 2 2 0 8 0 vmmpepl 168 106871 0 104787 143 30 113 115 0 357 21 vmsppl 368 833 0 804 3 0 3 3 0 8 0 pdppl 4096 1676 0 1621 8 0 8 8 0 8 1 pvpl 32 281272 0 264928 168 21 147 168 0 265 6 pmappl 232 833 0 804 2 0 2 2 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 274 0 9 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace memcpy() at memcpy+0x15 rtrequest(1,ffff800021fa0a60,4,0,0) at rtrequest+0x85e sys/net/route.c:930 in6_update_ifa(ffff800000a4a800,ffff800021fa0dd0,0) at in6_update_ifa+0x1742 sys/netinet6/in6.c:810 in6_ioctl_change_ifaddr(8080691a,ffff800021fa0dd0,ffff800000a4a800) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd8064fc81b8,8080691a,ffff800021fa0dd0,ffff800020ed9878) at ifioctl+0xe70 sys/net/if.c:2289 soo_ioctl(fffffd806cb85270,8080691a,ffff800021fa0dd0,ffff800020ed9878) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020ed9878,ffff800021fa0ee8,ffff800021fa0f30) at sys_ioctl+0x4a5 syscall(ffff800021fa0fb0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021fa0fb0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb9b0ff29970, count: -9 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020e00ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 end of kernel end trace frame: 0x7f7ffffe2dd0, count: -3