uvm_fault(0xffffffff8251da00, 0xffff800000a2d000, 0, 1) -> e kernel: page fault trap, code=0 Stopped at strlcpy+0xcf: movzbl 0xffffffffffffffff(%rbx),%r15d ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic kernel page fault uvm_fault(0xffffffff8251da00, 0xffff800000a2d000, 0, 1) -> e strlcpy(ffff80001d374448,ffff800000a2cc20,40) at strlcpy+0xcf sys/lib/libkern/strlcpy.c:44 end trace frame: 0xffff80001f60dd20, count: 0 ddb> trace strlcpy(ffff80001d374448,ffff800000a2cc20,40) at strlcpy+0xcf sys/lib/libkern/strlcpy.c:44 vm_create(ffff800000a2c800,ffff80001d339758) at vm_create+0x112 sys/arch/amd64/amd64/vmm.c:1172 VOP_IOCTL(fffffd805d843820,c5005601,ffff800000a2c800,1,fffffd806c3bfc00,ffff80001d339758) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:290 vn_ioctl(fffffd805d877800,c5005601,ffff800000a2c800,ffff80001d339758) at vn_ioctl+0xb5 sys/kern/vfs_vnops.c:531 sys_ioctl(ffff80001d339758,ffff80001f60e008,ffff80001f60e050) at sys_ioctl+0x4a1 syscall(ffff80001f60e0d0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xba84e2e51b0, count: -7 ddb> show registers rdi 0xffffffff82148555 strlcpy+0xc5 rsi 0x47d rbp 0xffff80001f60dcc0 rbx 0xffff800000a2d001 rdx 0x47e rcx 0xffff80001e409000 rax 0xffff80001e409000 r8 0x210 r9 0x7 r10 0xf1b0f53801094e1f r11 0xdc0360bfe1a6fef5 r12 0 r13 0x45 r14 0xffff800000a2cc20 r15 0xdb rip 0xffffffff8214855f strlcpy+0xcf cs 0x8 rflags 0x10282 __ALIGN_SIZE+0xf282 rsp 0xffff80001f60dc70 ss 0x10 strlcpy+0xcf: movzbl 0xffffffffffffffff(%rbx),%r15d ddb> show proc PROC (syz-executor.0) pid=384538 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=71, nice=20 forw=0xffffffffffffffff, list=0xffff80001d33a5f8,0xffffffff825b3eb0 process=0xffff8000ffffb5a0 user=0xffff80001f609000, vmspace=0xfffffd8069043228 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 6297 484655 12032 0 2 0 syz-executor.0 * 6297 384538 12032 0 7 0x4000000 syz-executor.0 67467 256999 17747 0 2 0x2 syz-executor.1 66193 195374 0 0 3 0x14200 bored sosplice 12032 300516 17747 0 3 0x82 nanosleep syz-executor.0 17747 52728 78910 0 3 0x82 thrsleep syz-fuzzer 17747 46103 78910 0 3 0x4000082 nanosleep syz-fuzzer 17747 460500 78910 0 3 0x4000082 kqread syz-fuzzer 17747 243998 78910 0 3 0x4000082 thrsleep syz-fuzzer 17747 404507 78910 0 3 0x4000082 thrsleep syz-fuzzer 17747 389600 78910 0 3 0x4000082 thrsleep syz-fuzzer 17747 189887 78910 0 3 0x4000082 thrsleep syz-fuzzer 17747 334501 78910 0 3 0x4000082 thrsleep syz-fuzzer 78910 314871 41432 0 3 0x10008a pause ksh 41432 41079 97492 0 3 0x92 select sshd 50748 471616 1 0 3 0x100083 ttyin getty 97492 275559 1 0 3 0x80 select sshd 96097 184743 81358 73 3 0x100090 kqread syslogd 81358 273356 1 0 3 0x100082 netio syslogd 72319 302374 1 77 3 0x100090 poll dhclient 54759 249498 1 0 3 0x80 poll dhclient 66950 327281 0 0 3 0x14200 bored smr 15069 60651 0 0 2 0x14200 zerothread 8072 207707 0 0 3 0x14200 aiodoned aiodoned 34455 133140 0 0 3 0x14200 syncer update 57852 508352 0 0 3 0x14200 cleaner cleaner 57476 67658 0 0 3 0x14200 reaper reaper 55273 404078 0 0 3 0x14200 pgdaemon pagedaemon 1847 461009 0 0 3 0x14200 bored crynlk 16431 70676 0 0 3 0x14200 bored crypto 10992 59653 0 0 3 0x40014200 acpi0 acpi0 62287 346325 0 0 3 0x14200 bored softnet 26568 91076 0 0 3 0x14200 bored systqmp 27106 97924 0 0 3 0x14200 bored systq 66953 452336 0 0 2 0x40014200 softclock 43337 390303 0 0 3 0x40014200 idle0 1 255150 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9502 6344K 6656K 78643K 10933 0 pcb 13 8K 8K 78643K 71 0 rtable 105 3K 3K 78643K 257 0 ifaddr 68 13K 13K 78643K 93 0 counters 21 16K 16K 78643K 23 0 ioctlops 1 2K 2K 78643K 23 0 iov 0 0K 12K 78643K 44 0 mount 1 1K 1K 78643K 1 0 vnodes 1217 77K 77K 78643K 1363 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 8 0 VM map 2 0K 0K 78643K 2 0 sem 8 0K 0K 78643K 10 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1794 195K 288K 78643K 12646 0 file desc 5 13K 25K 78643K 229 0 sigio 0 0K 0K 78643K 8 0 proc 49 38K 55K 78643K 414 0 subproc 32 2K 2K 78643K 51 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 29 0 in_multi 33 2K 2K 78643K 90 0 ether_multi 1 0K 0K 78643K 15 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 43 201K 201K 78643K 43 0 exec 0 0K 1K 78643K 210 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 108 70K 70K 78643K 1372 0 UVM aobj 12 2K 2K 78643K 14 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 65 0 NDP 14 0K 0K 78643K 21 0 temp 103 3031K 3095K 78643K 14717 0 kqueue 3 4K 14K 78643K 17 0 SYN cache 2 16K 16K 78643K 2 0 ddb> 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 rtpcb 80 29 0 27 1 0 1 1 0 8 0 rtentry 112 60 0 16 2 0 2 2 0 8 0 unpcb 120 167 0 159 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 66 0 66 1 1 0 1 0 8 0 tcpcb 544 86 0 82 1 0 1 1 0 8 0 inpcb 280 449 0 441 2 0 2 2 0 8 1 nd6 48 10 0 4 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 257 0 68 13 0 13 13 0 8 1 art_table 32 258 0 68 2 0 2 2 0 8 0 art_node 16 59 0 19 1 0 1 1 0 8 0 sysvmsgpl 40 14 0 6 1 0 1 1 0 8 0 semupl 112 2 0 2 1 0 1 1 0 8 1 semapl 112 6 0 0 1 0 1 1 0 8 0 shmpl 112 12 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1718 0 322 46 0 46 46 0 8 0 ffsino 240 1718 0 322 83 0 83 83 0 8 0 nchpl 144 2285 0 690 60 0 60 60 0 8 0 uvmvnodes 72 1859 0 0 34 0 34 34 0 8 0 vnodes 208 1859 0 0 98 0 98 98 0 8 0 namei 1024 5992 0 5991 1 0 1 1 0 8 0 vcpupl 1984 6 0 0 1 0 1 1 0 8 0 vmpool 528 7 0 0 1 0 1 1 0 8 0 scsiplug 64 1 0 1 1 1 0 1 0 8 0 scxspl 192 6684 0 6684 1 0 1 1 0 8 1 plimitpl 152 27 0 20 1 0 1 1 0 8 0 sigapl 424 413 0 384 4 0 4 4 0 8 0 futexpl 56 4217 0 4217 1 0 1 1 0 8 1 knotepl 112 84 0 65 1 0 1 1 0 8 0 kqueuepl 144 49 0 46 1 0 1 1 0 8 0 pipelkpl 16 107 0 97 1 0 1 1 0 8 0 pipepl 120 214 0 195 1 0 1 1 0 8 0 fdescpl 432 398 0 384 2 0 2 2 0 8 0 filepl 120 2558 0 2459 4 0 4 4 0 8 1 lockfpl 104 81 0 80 1 0 1 1 0 8 0 lockfspl 48 28 0 27 1 0 1 1 0 8 0 sessionpl 112 18 0 8 1 0 1 1 0 8 0 pgrppl 48 22 0 12 1 0 1 1 0 8 0 ucredpl 96 164 0 156 1 0 1 1 0 8 0 zombiepl 144 384 0 384 1 0 1 1 0 8 1 processpl 920 413 0 384 4 0 4 4 0 8 0 procpl 624 647 0 610 4 0 4 4 0 8 1 sosppl 128 6 0 6 2 1 1 1 0 8 1 sockpl 400 645 0 627 4 1 3 4 0 8 1 mcl64k 65536 40 0 40 1 0 1 1 0 8 1 mcl16k 16384 1 0 1 1 1 0 1 0 8 0 mcl12k 12288 15 0 15 1 0 1 1 0 8 1 mcl9k 9216 4 0 4 1 0 1 1 0 8 1 mcl8k 8192 4 0 4 2 1 1 1 0 8 1 mcl4k 4096 19 0 19 2 1 1 1 0 8 1 mcl2k 2048 61255 0 61212 15 9 6 13 0 8 0 mtagpl 80 26 0 10 2 1 1 1 0 8 0 mbufpl 256 98503 0 98362 13 2 11 11 0 8 1 bufpl 280 4548 0 161 314 0 314 314 0 8 0 anonpl 16 47397 0 35730 58 2 56 56 0 107 0 amapchunkpl 152 1669 0 1512 7 0 7 7 0 158 0 amappl16 192 1630 0 876 39 0 39 39 0 8 1 amappl15 184 2 0 0 1 0 1 1 0 8 0 amappl14 176 179 0 176 2 1 1 1 0 8 0 amappl13 168 37 0 35 1 0 1 1 0 8 0 amappl12 160 3 0 2 2 1 1 1 0 8 0 amappl11 152 68 0 56 1 0 1 1 0 8 0 amappl10 144 22 0 17 1 0 1 1 0 8 0 amappl9 136 397 0 393 1 0 1 1 0 8 0 amappl8 128 285 0 268 1 0 1 1 0 8 0 amappl7 120 115 0 103 1 0 1 1 0 8 0 amappl6 112 20 0 18 1 0 1 1 0 8 0 amappl5 104 321 0 310 1 0 1 1 0 8 0 amappl4 96 451 0 422 1 0 1 1 0 8 0 amappl3 88 292 0 286 1 0 1 1 0 8 0 amappl2 80 2314 0 2247 3 1 2 3 0 8 0 amappl1 72 16659 0 16243 26 17 9 20 0 8 0 amappl 80 885 0 838 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 13 0 2 1 0 1 1 0 8 0 uaddrrnd 24 404 0 384 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 404 0 384 1 0 1 1 0 8 0 vmmpekpl 168 6736 0 6701 2 0 2 2 0 8 0 vmmpepl 168 53837 0 52013 119 12 107 107 0 357 27 vmsppl 272 403 0 384 2 0 2 2 0 8 0 pdppl 4096 814 0 774 6 0 6 6 0 8 0 pvpl 32 161639 0 147014 140 0 140 140 0 265 4 pmappl 200 403 0 384 2 0 2 2 0 8 1 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 154 0 17 5 0 5 5 0 8 0