uvm_fault(0xffffffff82565728, 0xffff800000a80000, 0, 1) -> e kernel: page fault trap, code=0 Stopped at memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic kernel page fault uvm_fault(0xffffffff82565728, 0xffff800000a80000, 0, 1) -> e memcpy() at memcpy+0x15 end trace frame: 0xffff8000241b0d30, count: 0 ddb{1}> trace memcpy() at memcpy+0x15 rtrequest(1,ffff8000241b0d70,4,0,0) at rtrequest+0x85e sys/net/route.c:930 in6_update_ifa(ffff800000a28000,ffff8000241b10e0,0) at in6_update_ifa+0x1742 sys/netinet6/in6.c:810 in6_ioctl_change_ifaddr(8080691a,ffff8000241b10e0,ffff800000a28000) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd806f6e7960,8080691a,ffff8000241b10e0,ffff800020eba9d8) at ifioctl+0xe70 sys/net/if.c:2288 soo_ioctl(fffffd8068b18738,8080691a,ffff8000241b10e0,ffff800020eba9d8) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020eba9d8,ffff8000241b11f8,ffff8000241b1240) at sys_ioctl+0x4a5 syscall(ffff8000241b12c0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000241b12c0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc033c196a70, count: -9 ddb{1}> show registers rdi 0xffff800000a7fbc0 rsi 0xffff800000a80000 rbp 0xffff8000241b0c30 rbx 0xffff800000a7ff40 rdx 0xe8 rcx 0x5 rax 0xfffffffffffffbc0 r8 0x70 r9 0x1 r10 0xbac9e12e077e70ac r11 0xffff800000a7fb00 r12 0xffff800000a7fb00 r13 0xe8 r14 0 r15 0xfffffd8066c31ee8 rip 0xffffffff811d1275 memcpy+0x15 cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff8000241b0bc8 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{1}> show proc PROC (syz-executor.1) pid=51919 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=54, nice=20 forw=0xffffffffffffffff, list=0xffff800020eba288,0xffffffff82647678 process=0xffff800020ecfb10 user=0xffff8000241ac000, vmspace=0xfffffd807efff170 estcpu=9, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 76638 163636 17503 0 2 0 syz-executor.1 *76638 51919 17503 0 7 0x4000000 syz-executor.1 14940 298981 9157 0 7 0 syz-executor.0 14940 272841 9157 0 3 0x4000080 ttyin syz-executor.0 41219 18949 0 0 3 0x14200 bored sosplice 17503 352125 9918 0 3 0x82 nanosleep syz-executor.1 9157 96929 9918 0 3 0x82 nanosleep syz-executor.0 9918 443424 71174 0 3 0x82 thrsleep syz-fuzzer 9918 437715 71174 0 3 0x4000082 thrsleep syz-fuzzer 9918 424879 71174 0 3 0x4000082 thrsleep syz-fuzzer 9918 518161 71174 0 3 0x4000082 thrsleep syz-fuzzer 9918 246020 71174 0 3 0x4000082 thrsleep syz-fuzzer 9918 202309 71174 0 3 0x4000082 kqread syz-fuzzer 9918 179502 71174 0 3 0x4000082 thrsleep syz-fuzzer 9918 397658 71174 0 3 0x4000082 thrsleep syz-fuzzer 9918 489500 71174 0 3 0x4000082 thrsleep syz-fuzzer 9918 1924 71174 0 3 0x4000082 thrsleep syz-fuzzer 71174 402951 19740 0 3 0x10008a pause ksh 19740 326087 48326 0 3 0x92 select sshd 54080 106019 1 0 3 0x100083 ttyin getty 48326 75501 1 0 3 0x80 select sshd 54551 73654 51859 74 3 0x100092 bpf pflogd 51859 430123 1 0 3 0x80 netio pflogd 65264 511982 67853 73 3 0x100090 kqread syslogd 67853 157897 1 0 3 0x100082 netio syslogd 95216 4305 1 77 3 0x100090 poll dhclient 96818 191282 1 0 3 0x80 poll dhclient 92934 499554 0 0 3 0x14200 bored smr 7386 483610 0 0 2 0x14200 zerothread 41664 308519 0 0 3 0x14200 aiodoned aiodoned 71875 247696 0 0 3 0x14200 syncer update 98824 186904 0 0 3 0x14200 cleaner cleaner 99164 157386 0 0 3 0x14200 reaper reaper 95028 148450 0 0 3 0x14200 pgdaemon pagedaemon 50195 79941 0 0 3 0x14200 bored crynlk 41217 52489 0 0 3 0x14200 bored crypto 57031 502942 0 0 3 0x40014200 acpi0 acpi0 45118 275371 0 0 3 0x40014200 idle1 69993 383750 0 0 3 0x14200 bored softnet 9493 238019 0 0 3 0x14200 bored systqmp 28440 221746 0 0 3 0x14200 bored systq 19216 371597 0 0 3 0x40014200 bored softclock 32098 29899 0 0 3 0x40014200 idle0 1 414429 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 76638 (syz-executor.1) thread 0xffff800020eba9d8 (51919) exclusive rwlock netlock r = 0 (0xffffffff824f9028) #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:2288 #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 (0xffffffff8265a808) #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{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9488 6418K 6609K 78643K 10739 0 pcb 13 8K 8K 78643K 51 0 rtable 88 4K 4K 78643K 242 0 ifaddr 50 11K 12K 78643K 69 0 sysctl 2 0K 0K 78643K 2 0 counters 41 33K 33K 78643K 47 0 ioctlops 0 0K 4K 78643K 1493 0 iov 0 0K 16K 78643K 14 0 mount 1 1K 1K 78643K 1 0 vnodes 1217 77K 77K 78643K 1288 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 52 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 206 0 proc 61 63K 95K 78643K 456 0 subproc 32 2K 2K 78643K 36 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 22 0 in_multi 26 1K 2K 78643K 61 0 ether_multi 1 0K 0K 78643K 6 0 mrt 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 49 228K 228K 78643K 49 0 exec 0 0K 1K 78643K 226 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 122 55K 55K 78643K 1633 0 UVM aobj 2 2K 2K 78643K 4 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 24 0 NDP 7 0K 0K 78643K 14 0 temp 91 3038K 3102K 78643K 3420 0 kqueue 3 4K 8K 78643K 11 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 7 0 2 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 27 0 25 1 0 1 1 0 8 0 rtentry 112 49 0 17 2 0 2 2 0 8 0 unpcb 120 103 0 93 1 0 1 1 0 8 0 syncache 264 6 0 6 2 2 0 1 0 8 0 tcpqe 32 383 0 383 1 1 0 1 0 8 0 tcpcb 544 74 0 70 1 0 1 1 0 8 0 inpcb 280 259 0 251 2 1 1 2 0 8 0 nd6 48 6 0 5 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 1 0 1 0 8 0 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 pfrktable 1344 3 0 1 1 0 1 1 0 8 0 pfstitem 24 20 0 6 1 0 1 1 0 8 0 pfstkey 112 20 0 6 1 0 1 1 0 8 0 pfstate 328 20 0 6 2 0 2 2 0 8 0 pfrule 1360 22 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 199 0 60 13 1 12 13 0 8 1 art_table 32 200 0 60 2 0 2 2 0 8 0 art_node 16 47 0 18 1 0 1 1 0 8 0 sysvmsgpl 40 21 0 18 1 0 1 1 0 8 0 semapl 112 50 0 40 1 0 1 1 0 8 0 shmpl 112 2 0 2 1 1 0 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1698 0 294 89 0 89 89 0 8 0 ffsino 272 1698 0 294 95 1 94 94 0 8 0 nchpl 144 2164 0 555 60 0 60 60 0 8 0 uvmvnodes 72 1780 0 0 33 0 33 33 0 8 0 vnodes 208 1780 0 0 94 0 94 94 0 8 0 namei 1024 5876 0 5876 2 1 1 1 0 8 1 percpumem 16 34 0 3 1 0 1 1 0 8 0 vcpupl 1984 4 0 0 1 0 1 1 0 8 0 vmpool 560 6 0 2 1 0 1 1 0 8 0 pfiaddrpl 120 1 0 0 1 0 1 1 0 8 0 scxspl 192 5860 0 5860 9 7 2 7 0 8 2 plimitpl 152 21 0 13 1 0 1 1 0 8 0 sigapl 424 422 0 389 4 0 4 4 0 8 0 futexpl 56 2619 0 2619 1 0 1 1 0 8 1 knotepl 112 71 0 52 1 0 1 1 0 8 0 kqueuepl 144 32 0 30 1 0 1 1 0 8 0 pipelkpl 48 89 0 79 1 0 1 1 0 8 0 pipepl 120 178 0 159 1 0 1 1 0 8 0 fdescpl 496 406 0 389 3 0 3 3 0 8 0 filepl 152 2226 0 2123 6 1 5 5 0 8 1 lockfpl 104 40 0 39 1 0 1 1 0 8 0 lockfspl 48 13 0 12 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 96 221 0 211 1 0 1 1 0 8 0 zombiepl 144 389 0 389 2 1 1 1 0 8 1 processpl 984 422 0 389 6 1 5 5 0 8 0 procpl 624 868 0 824 4 0 4 4 0 8 0 srpgc 64 2 0 2 1 1 0 1 0 8 0 sockpl 400 394 0 374 5 2 3 4 0 8 1 mcl64k 65536 9 0 0 2 0 2 2 0 8 0 mcl12k 12288 5 0 0 1 0 1 1 0 8 0 mcl9k 9216 5 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 195 0 0 24 0 24 24 0 8 0 mtagpl 80 6 0 0 1 0 1 1 0 8 0 mbufpl 256 223 0 0 13 0 13 13 0 8 0 bufpl 280 3598 0 132 248 0 248 248 0 8 0 anonpl 16 49549 0 34224 63 1 62 62 0 124 0 amapchunkpl 152 2151 0 2003 8 1 7 8 0 158 0 amappl16 192 1677 0 846 43 1 42 42 0 8 0 amappl15 184 1 0 1 1 1 0 1 0 8 0 amappl14 176 22 0 18 1 0 1 1 0 8 0 amappl13 168 28 0 25 1 0 1 1 0 8 0 amappl12 160 16 0 13 1 0 1 1 0 8 0 amappl11 152 145 0 128 1 0 1 1 0 8 0 amappl10 144 102 0 96 1 0 1 1 0 8 0 amappl9 136 379 0 378 1 0 1 1 0 8 0 amappl8 128 341 0 307 2 0 2 2 0 8 0 amappl7 120 200 0 187 1 0 1 1 0 8 0 amappl6 112 118 0 112 2 1 1 1 0 8 0 amappl5 104 316 0 298 1 0 1 1 0 8 0 amappl4 96 493 0 465 1 0 1 1 0 8 0 amappl3 88 116 0 110 1 0 1 1 0 8 0 amappl2 80 2295 0 2217 2 0 2 2 0 8 0 amappl1 72 19025 0 18578 23 13 10 18 0 8 0 amappl 80 1116 0 1070 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 3 0 2 1 0 1 1 0 8 0 uaddrrnd 24 412 0 391 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 412 0 391 1 0 1 1 0 8 0 vmmpekpl 168 7136 0 7101 2 0 2 2 0 8 0 vmmpepl 168 55980 0 53904 120 28 92 107 0 357 1 vmsppl 368 411 0 391 2 0 2 2 0 8 0 pdppl 4096 832 0 786 6 0 6 6 0 8 0 pvpl 32 171245 0 152700 161 6 155 155 0 265 4 pmappl 232 411 0 391 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 266 0 8 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff824d6ff0) 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 __mp_lock(ffffffff8265a600) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff8265a600) at __mp_lock+0x127 sys/kern/kern_lock.c:147 intr_handler(ffff800020f634b0,ffff800000255c00) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:525 Xintr_ioapic_edge19_untramp() at Xintr_ioapic_edge19_untramp+0x19f nanotime(ffff800020f635e8) at nanotime+0x149 sys/kern/kern_tc.c:260 clock_gettime(ffff800020ebb128,0,ffff800020f635e8) at clock_gettime+0x9d sys/kern/kern_time.c:116 sys_clock_gettime(ffff800020ebb128,ffff800020f63650,ffff800020f636a0) at sys_clock_gettime+0x4c sys/kern/kern_time.c:165 syscall(ffff800020f63720) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020f63720) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffcbb90, count: -11 ddb{0}> machine ddbcpu 1 Stopped at memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{1}> trace memcpy() at memcpy+0x15 rtrequest(1,ffff8000241b0d70,4,0,0) at rtrequest+0x85e sys/net/route.c:930 in6_update_ifa(ffff800000a28000,ffff8000241b10e0,0) at in6_update_ifa+0x1742 sys/netinet6/in6.c:810 in6_ioctl_change_ifaddr(8080691a,ffff8000241b10e0,ffff800000a28000) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd806f6e7960,8080691a,ffff8000241b10e0,ffff800020eba9d8) at ifioctl+0xe70 sys/net/if.c:2288 soo_ioctl(fffffd8068b18738,8080691a,ffff8000241b10e0,ffff800020eba9d8) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020eba9d8,ffff8000241b11f8,ffff8000241b1240) at sys_ioctl+0x4a5 syscall(ffff8000241b12c0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000241b12c0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc033c196a70, count: -9