uvm_fault(0xffffffff827b0b88, 0xffff800000b1a000, 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(0xffffffff827b0b88, 0xffff800000b1a000, 0, 1) -> e memcpy() at memcpy+0x15 end trace frame: 0xffff800023f26c30, count: 0 ddb{1}> trace memcpy() at memcpy+0x15 rtm_msg1(c,ffff800023f26c48) at rtm_msg1+0x1b2 sys/net/rtsock.c:1552 rtm_addr(c,ffff800000b19f00) at rtm_addr+0x9b sys/net/rtsock.c:1740 rt_ifa_add(ffff800000b19f00,240404,ffff800000b19f40,0) at rt_ifa_add+0x2a7 sys/net/route.c:1140 rt_ifa_addlocal(ffff800000b19f00) at rt_ifa_addlocal+0x16d sys/net/route.c:1238 in6_update_ifa(ffff800000af1800,ffff800023f27270,0) at in6_update_ifa+0x13ab sys/netinet6/in6.c:723 in6_ioctl_change_ifaddr(8080691a,ffff800023f27270,ffff800000af1800) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd806f68d960,8080691a,ffff800023f27270,ffff8000230f73a8) at ifioctl+0xe70 sys/net/if.c:2282 soo_ioctl(fffffd8066912440,8080691a,ffff800023f27270,ffff8000230f73a8) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff8000230f73a8,ffff800023f27388,ffff800023f273d0) at sys_ioctl+0x4a5 syscall(ffff800023f27450) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023f27450) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcab7680a50, count: -12 ddb{1}> show registers rdi 0xfffffd806483e898 rsi 0xffff800000b1a000 rbp 0xffff800023f26bc0 rbx 0 rdx 0xa0 rcx 0x5 rax 0x7d8063d24898 r8 0x2 r9 0x1 r10 0x2fcea5ee0dac22fd r11 0xfffffd806483e820 r12 0xa0 r13 0xa0 r14 0xffff800000b19f88 r15 0xfffffd806483e800 rip 0xffffffff810b3125 memcpy+0x15 cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff800023f26af8 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{1}> show proc PROC (syz-executor.1) pid=460552 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=62, nice=20 forw=0xffffffffffffffff, list=0xffff8000230f7618,0xffffffff828d0c00 process=0xffff800020eda408 user=0xffff800023f22000, vmspace=0xfffffd806e8ec738 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 77073 134164 34118 0 7 0 syz-executor.1 *77073 460552 34118 0 7 0x4000000 syz-executor.1 74626 109788 0 0 3 0x14200 acct acct 13110 522530 0 0 3 0x14280 nfsidl nfsio 26395 480037 0 0 3 0x14280 nfsidl nfsio 86347 437737 0 0 3 0x14280 nfsidl nfsio 26212 100224 0 0 3 0x14280 nfsidl nfsio 28222 359539 0 0 3 0x14280 nfsidl nfsio 22868 488218 0 0 3 0x14280 nfsidl nfsio 7967 521024 0 0 3 0x14280 nfsidl nfsio 18980 51353 0 0 3 0x14280 nfsidl nfsio 95112 133487 0 0 3 0x14280 nfsidl nfsio 23367 287777 0 0 3 0x14280 nfsidl nfsio 36642 506417 0 0 3 0x14280 nfsidl nfsio 77981 119832 0 0 3 0x14280 nfsidl nfsio 19223 510804 0 0 3 0x14280 nfsidl nfsio 93376 239017 0 0 3 0x14280 nfsidl nfsio 58840 359435 0 0 3 0x14280 nfsidl nfsio 72224 249270 0 0 3 0x14280 nfsidl nfsio 883 343266 0 0 3 0x14280 nfsidl nfsio 6200 448029 0 0 3 0x14280 nfsidl nfsio 99361 75447 0 0 3 0x14280 nfsidl nfsio 77746 512812 0 0 3 0x14280 nfsidl nfsio 97832 219422 0 0 3 0x14200 bored sosplice 34118 137498 38503 0 3 0x82 nanosleep syz-executor.1 48995 292900 38503 0 3 0x2 biowait syz-executor.0 38503 104870 12668 0 3 0x82 thrsleep syz-fuzzer 38503 406117 12668 0 3 0x4000082 nanosleep syz-fuzzer 38503 364990 12668 0 3 0x4000082 thrsleep syz-fuzzer 38503 135441 12668 0 3 0x4000082 kqread syz-fuzzer 38503 73797 12668 0 3 0x4000082 thrsleep syz-fuzzer 38503 190885 12668 0 3 0x4000082 thrsleep syz-fuzzer 38503 289177 12668 0 3 0x4000082 nanosleep syz-fuzzer 38503 523940 12668 0 3 0x4000082 thrsleep syz-fuzzer 38503 432967 12668 0 3 0x4000082 thrsleep syz-fuzzer 38503 210416 12668 0 3 0x4000082 thrsleep syz-fuzzer 12668 93810 52529 0 3 0x10008a pause ksh 52529 187765 71194 0 3 0x92 select sshd 84693 32334 1 0 3 0x100083 ttyin getty 71194 276407 1 0 3 0x80 select sshd 31347 33975 30168 74 3 0x100092 bpf pflogd 30168 27905 1 0 3 0x80 netio pflogd 75892 333981 11613 73 3 0x100090 kqread syslogd 11613 271989 1 0 3 0x100082 netio syslogd 66675 267469 1 77 3 0x100090 poll dhclient 44223 331271 1 0 3 0x80 poll dhclient 71028 110144 0 0 3 0x14200 bored smr 19778 126511 0 0 3 0x14200 pgzero zerothread 93789 367203 0 0 3 0x14200 aiodoned aiodoned 3712 226032 0 0 3 0x14200 syncer update 78772 195692 0 0 3 0x14200 cleaner cleaner 22500 53144 0 0 3 0x14200 reaper reaper 68405 194472 0 0 3 0x14200 pgdaemon pagedaemon 91954 23895 0 0 3 0x14200 bored crynlk 81394 400588 0 0 3 0x14200 bored crypto 25557 161780 0 0 3 0x40014200 acpi0 acpi0 27012 236098 0 0 3 0x40014200 idle1 70918 384501 0 0 3 0x14200 bored softnet 86840 252308 0 0 3 0x14200 bored systqmp 90205 415142 0 0 3 0x14200 bored systq 73323 380459 0 0 3 0x40014200 bored softclock 91057 283388 0 0 3 0x40014200 idle0 1 120331 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 77073 (syz-executor.1) thread 0xffff8000230f73a8 (460552) exclusive rwlock netlock r = 0 (0xffffffff826f65a8) #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:2282 #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 (0xffffffff828c9810) #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 Process 48995 (syz-executor.0) thread 0xffff800020ddd868 (292900) exclusive rrwlock inode r = 0 (0xfffffd8064be9b40) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 rw_enter+0x453 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462 #3 ufs_ihashins+0x45 sys/ufs/ufs/ufs_ihash.c:140 #4 ffs_vget+0x13e sys/ufs/ffs/ffs_vfsops.c:1358 #5 ffs_inode_alloc+0x1e2 sys/ufs/ffs/ffs_alloc.c:394 #6 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1162 #7 VOP_MKDIR+0xc6 sys/kern/vfs_vops.c:450 #8 domkdirat+0x121 sys/kern/vfs_syscalls.c:3051 #9 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #9 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #10 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806b207a28) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 rw_enter+0x453 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462 #3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:603 #4 vn_lock+0x81 sys/kern/vfs_vnops.c:575 #5 vfs_lookup+0xe6 sys/kern/vfs_lookup.c:419 #6 namei+0x63c sys/kern/vfs_lookup.c:249 #7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3036 #8 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9501 6410K 6918K 78643K 10900 0 pcb 13 8K 8K 78643K 71 0 rtable 102 5K 7K 78643K 350 0 ifaddr 69 14K 14K 78643K 115 0 counters 43 33K 34K 78643K 49 0 ioctlops 0 0K 4K 78643K 1500 0 iov 0 0K 16K 78643K 27 0 mount 1 1K 1K 78643K 1 0 vnodes 1224 77K 77K 78643K 1332 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 7 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 46 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 335 0 sigio 0 0K 0K 78643K 3 0 proc 61 63K 95K 78643K 455 0 subproc 32 2K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 21 0 in_multi 56 2K 2K 78643K 156 0 ether_multi 1 0K 0K 78643K 10 0 mrt 3 0K 0K 78643K 6 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 37 175K 175K 78643K 37 0 exec 0 0K 1K 78643K 234 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 126 39K 40K 78643K 1997 0 UVM aobj 10 2K 2K 78643K 12 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 108 0 NDP 10 0K 0K 78643K 27 0 temp 111 3872K 3937K 78643K 6504 0 kqueue 3 4K 8K 78643K 14 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 31 0 29 1 0 1 1 0 8 0 rtentry 112 72 0 35 2 0 2 2 0 8 0 unpcb 120 187 0 177 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpcb 544 86 0 82 1 0 1 1 0 8 0 inpcb 296 503 0 495 2 0 2 2 0 8 1 rttmr 72 3 0 2 1 0 1 1 0 8 0 nd6 48 24 0 21 1 0 1 1 0 8 0 ppxss 1128 1 0 1 1 1 0 1 0 8 0 pffrag 232 1 0 1 1 1 0 1 0 482 0 pffrnode 88 1 0 1 1 1 0 1 0 8 0 pffrent 40 45 0 45 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 18 0 16 1 0 1 1 0 8 0 pfstitem 24 42 0 4 1 0 1 1 0 8 0 pfstkey 112 42 0 4 2 0 2 2 0 8 0 pfstate 328 42 0 4 4 0 4 4 0 8 0 pfrule 1360 28 0 19 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 382 0 152 16 1 15 15 0 8 0 art_table 32 383 0 152 2 0 2 2 0 8 0 art_node 16 71 0 36 1 0 1 1 0 8 0 sysvmsgpl 40 19 0 14 1 0 1 1 0 8 0 semapl 112 44 0 34 1 0 1 1 0 8 0 shmpl 112 10 0 2 2 1 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1830 0 419 89 0 89 89 0 8 0 ffsino 272 1830 0 419 95 0 95 95 0 8 0 nchpl 144 2549 0 938 60 0 60 60 0 8 0 uvmvnodes 72 1948 0 0 36 0 36 36 0 8 0 vnodes 208 1948 0 0 103 0 103 103 0 8 0 namei 1024 6806 0 6805 1 0 1 1 0 8 0 percpumem 16 35 0 3 1 0 1 1 0 8 0 vcpupl 1984 2 0 0 1 0 1 1 0 8 0 vmpool 560 4 0 2 1 0 1 1 0 8 0 pfiaddrpl 120 6 0 4 1 0 1 1 0 8 0 scxspl 192 7610 0 7609 8 4 4 7 0 8 3 plimitpl 152 32 0 24 1 0 1 1 0 8 0 sigapl 424 572 0 519 7 0 7 7 0 8 1 futexpl 56 4283 0 4283 1 0 1 1 0 8 1 knotepl 112 74 0 55 1 0 1 1 0 8 0 kqueuepl 144 51 0 49 1 0 1 1 0 8 0 pipelkpl 48 118 0 108 1 0 1 1 0 8 0 pipepl 120 236 0 217 1 0 1 1 0 8 0 fdescpl 496 535 0 519 3 0 3 3 0 8 0 filepl 152 3028 0 2927 5 0 5 5 0 8 1 lockfpl 104 75 0 74 1 0 1 1 0 8 0 lockfspl 48 25 0 24 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 96 259 0 248 1 0 1 1 0 8 0 zombiepl 144 519 0 519 1 0 1 1 0 8 1 processpl 984 572 0 519 7 0 7 7 0 8 0 procpl 624 1229 0 1166 6 0 6 6 0 8 0 srpgc 64 4 0 4 1 1 0 1 0 8 0 sosppl 128 3 0 3 1 0 1 1 0 8 1 sockpl 400 721 0 701 4 0 4 4 0 8 2 mcl64k 65536 7 0 0 1 0 1 1 0 8 0 mcl12k 12288 4 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 6 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 171 0 0 21 0 21 21 0 8 0 mtagpl 96 16 0 0 1 0 1 1 0 8 0 mbufpl 256 552 0 0 34 0 34 34 0 8 0 bufpl 280 4160 0 133 288 0 288 288 0 8 0 anonpl 16 61250 0 45704 74 5 69 73 0 124 5 amapchunkpl 152 2854 0 2701 11 3 8 11 0 158 0 amappl16 192 2481 0 1652 50 5 45 50 0 8 3 amappl15 184 13 0 10 1 0 1 1 0 8 0 amappl14 176 183 0 178 1 0 1 1 0 8 0 amappl13 168 28 0 25 1 0 1 1 0 8 0 amappl12 160 8 0 7 2 1 1 1 0 8 0 amappl11 152 58 0 43 1 0 1 1 0 8 0 amappl10 144 22 0 16 1 0 1 1 0 8 0 amappl9 136 536 0 532 1 0 1 1 0 8 0 amappl8 128 511 0 478 2 0 2 2 0 8 0 amappl7 120 117 0 106 1 0 1 1 0 8 0 amappl6 112 23 0 20 1 0 1 1 0 8 0 amappl5 104 442 0 425 1 0 1 1 0 8 0 amappl4 96 485 0 457 1 0 1 1 0 8 0 amappl3 88 265 0 259 1 0 1 1 0 8 0 amappl2 80 3331 0 3259 2 0 2 2 0 8 0 amappl1 72 21072 0 20633 23 13 10 18 0 8 0 amappl 80 1475 0 1428 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 11 0 2 1 0 1 1 0 8 0 uaddrrnd 24 539 0 521 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 539 0 521 1 0 1 1 0 8 0 vmmpekpl 168 8313 0 8273 2 0 2 2 0 8 0 vmmpepl 168 71429 0 69441 113 13 100 110 0 357 11 vmsppl 368 538 0 521 2 0 2 2 0 8 0 pdppl 4096 1085 0 1044 6 0 6 6 0 8 0 pvpl 32 202494 0 183672 178 4 174 178 0 265 20 pmappl 232 538 0 521 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 286 0 4 9 0 9 9 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff826fdff0) 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 __sanitizer_cov_trace_cmp4(971b7,971b8) at __sanitizer_cov_trace_cmp4+0x15 kd_curproc sys/dev/kcov.c:397 [inline] __sanitizer_cov_trace_cmp4(971b7,971b8) at __sanitizer_cov_trace_cmp4+0x15 trace_cmp sys/dev/kcov.c:104 [inline] __sanitizer_cov_trace_cmp4(971b7,971b8) at __sanitizer_cov_trace_cmp4+0x15 sys/dev/kcov.c:135 __mp_lock(ffffffff828c9608) at __mp_lock+0x139 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828c9608) at __mp_lock+0x139 sys/kern/kern_lock.c:147 intr_handler(ffff800023f1aef0,ffff80000004a400) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge17_untramp() at Xintr_ioapic_edge17_untramp+0x19f end of kernel end trace frame: 0x7f7ffffd55f0, count: -7 ddb{0}> machine ddbcpu 1 Stopped at memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{1}> trace memcpy() at memcpy+0x15 rtm_msg1(c,ffff800023f26c48) at rtm_msg1+0x1b2 sys/net/rtsock.c:1552 rtm_addr(c,ffff800000b19f00) at rtm_addr+0x9b sys/net/rtsock.c:1740 rt_ifa_add(ffff800000b19f00,240404,ffff800000b19f40,0) at rt_ifa_add+0x2a7 sys/net/route.c:1140 rt_ifa_addlocal(ffff800000b19f00) at rt_ifa_addlocal+0x16d sys/net/route.c:1238 in6_update_ifa(ffff800000af1800,ffff800023f27270,0) at in6_update_ifa+0x13ab sys/netinet6/in6.c:723 in6_ioctl_change_ifaddr(8080691a,ffff800023f27270,ffff800000af1800) at in6_ioctl_change_ifaddr+0x40c sys/netinet6/in6.c:352 ifioctl(fffffd806f68d960,8080691a,ffff800023f27270,ffff8000230f73a8) at ifioctl+0xe70 sys/net/if.c:2282 soo_ioctl(fffffd8066912440,8080691a,ffff800023f27270,ffff8000230f73a8) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff8000230f73a8,ffff800023f27388,ffff800023f273d0) at sys_ioctl+0x4a5 syscall(ffff800023f27450) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023f27450) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcab7680a50, count: -12