uvm_fault(0xfffffd80527dbcd0, 0x0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic kernel page fault uvm_fault(0xfffffd80527dbcd0, 0x0, 0, 1) -> e memcpy() at memcpy+0x15 end trace frame: 0xffff80001f63fcc0, count: 0 ddb> trace memcpy() at memcpy+0x15 bpf_mtap(ffff8000009fbc80,fffffd805aa90500,2) at bpf_mtap+0x1fe sys/net/bpf.c:1308 tun_dev_read(5d00,ffff80001f63ffa8,10) at tun_dev_read+0x10f spec_read(ffff80001f63fdf0) at spec_read+0xe9 sys/kern/spec_vnops.c:222 VOP_READ(fffffd8065f29a90,ffff80001f63ffa8,10,fffffd806c3bea80) at VOP_READ+0xbf sys/kern/vfs_vops.c:247 vn_read(fffffd805695ed30,ffff80001f63ffa8,0) at vn_read+0x11f sys/kern/vfs_vnops.c:375 dofilereadv(ffff80001d36deb8,f0,ffff80001f63ffa8,0,ffff80001f640090) at dofilereadv+0x1a1 sys/kern/sys_generic.c:236 sys_read(ffff80001d36deb8,ffff80001f640040,ffff80001f640090) at sys_read+0x83 sys/kern/sys_generic.c:156 syscall(ffff80001f640110) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3bcfdc59910, count: -10 ddb> show registers rdi 0xffff8000009f1ff6 rsi 0 rbp 0xffff80001f63fc30 rbx 0xa rdx 0xa rcx 0x1 rax 0xffff8000009f1ff6 r8 0xffff80001f63fc40 r9 0xffff8000009fae04 r10 0xea23bd6f78e9d107 r11 0xffff8000009f1ff6 r12 0x20 r13 0xfffffd805aa90500 r14 0xa r15 0xffff8000009f1ff6 rip 0xffffffff81af9c45 memcpy+0x15 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff80001f63fb88 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb> show proc PROC (syz-executor.0) pid=367938 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff80001d36d018,0xffffffff8255ac70 process=0xffff8000ffffb190 user=0xffff80001f63b000, vmspace=0xfffffd80527dbcd0 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 30292 513759 95490 0 2 0 syz-executor.0 *30292 367938 95490 0 7 0x4000000 syz-executor.0 81031 198269 0 0 3 0x14200 acct acct 26212 255748 0 0 3 0x14200 bored sosplice 95490 115434 74083 0 3 0x82 nanosleep syz-executor.0 83711 87990 74083 0 3 0x2 biowait syz-executor.1 74083 208498 97077 0 3 0x82 thrsleep syz-fuzzer 74083 413672 97077 0 3 0x4000082 nanosleep syz-fuzzer 74083 459675 97077 0 3 0x4000082 thrsleep syz-fuzzer 74083 426155 97077 0 3 0x4000082 thrsleep syz-fuzzer 74083 300327 97077 0 3 0x4000082 kqread syz-fuzzer 74083 26308 97077 0 3 0x4000082 thrsleep syz-fuzzer 74083 324375 97077 0 3 0x4000082 thrsleep syz-fuzzer 97077 156177 64494 0 3 0x10008a pause ksh 64494 275327 46866 0 3 0x92 select sshd 5180 514387 1 0 3 0x100083 ttyin getty 46866 313791 1 0 3 0x80 select sshd 19818 328158 89127 73 3 0x100090 kqread syslogd 89127 241585 1 0 3 0x100082 netio syslogd 79149 429208 1 77 3 0x100090 poll dhclient 44759 58248 1 0 3 0x80 poll dhclient 62545 436510 0 0 2 0x14200 zerothread 89038 477739 0 0 3 0x14200 aiodoned aiodoned 83602 227555 0 0 3 0x14200 syncer update 55048 236027 0 0 3 0x14200 cleaner cleaner 94061 251335 0 0 3 0x14200 reaper reaper 15436 277556 0 0 3 0x14200 pgdaemon pagedaemon 12109 453036 0 0 3 0x14200 bored crynlk 70888 404110 0 0 3 0x14200 bored crypto 14619 223893 0 0 3 0x40014200 acpi0 acpi0 31747 368887 0 0 3 0x14200 bored softnet 55573 71018 0 0 3 0x14200 bored systqmp 58336 363178 0 0 3 0x14200 bored systq 8351 316442 0 0 3 0x40014200 bored softclock 39302 79088 0 0 3 0x40014200 idle0 32060 44937 0 0 3 0x14200 bored smr 1 386520 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 9513 6355K 6854K 78643K 11190 0 pcb 13 8K 8K 78643K 109 0 rtable 92 4K 5K 78643K 393 0 ifaddr 72 13K 14K 78643K 144 0 counters 21 16K 16K 78643K 32 0 ioctlops 0 0K 2K 78643K 21 0 iov 0 0K 24K 78643K 52 0 mount 1 1K 1K 78643K 1 0 vnodes 1229 77K 77K 78643K 1414 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 0K 0K 78643K 2 0 sem 12 0K 0K 78643K 88 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1794 195K 288K 78643K 12646 0 file desc 5 13K 25K 78643K 299 0 sigio 0 0K 0K 78643K 2 0 proc 49 38K 54K 78643K 386 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 62 0 in_multi 40 2K 2K 78643K 133 0 ether_multi 1 0K 0K 78643K 25 0 mrt 0 0K 0K 78643K 13 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 221 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 109 37K 39K 78643K 1548 0 UVM aobj 28 2K 2K 78643K 30 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 92 0 NDP 13 0K 0K 78643K 32 0 temp 133 3014K 3086K 78643K 4945 0 kqueue 3 4K 12K 78643K 20 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 10 0 6 1 0 1 1 0 8 0 rtpcb 80 41 0 39 1 0 1 1 0 8 0 rtentry 112 75 0 42 2 0 2 2 0 8 0 unpcb 120 203 0 195 1 0 1 1 0 8 0 syncache 264 6 0 6 2 2 0 1 0 8 0 tcpqe 32 189 0 189 1 1 0 1 0 8 0 tcpcb 544 212 0 206 2 0 2 2 0 8 1 ipq 40 8 0 8 1 1 0 1 0 8 0 ipqe 40 276 0 276 1 1 0 1 0 8 0 inpcb 280 698 0 687 2 0 2 2 0 8 1 rttmr 72 5 0 5 1 1 0 1 0 8 0 nd6 48 9 0 7 1 0 1 1 0 8 0 ppxss 1128 2 0 2 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 337 0 166 15 0 15 15 0 8 1 art_table 32 338 0 166 2 0 2 2 0 8 0 art_node 16 74 0 43 1 0 1 1 0 8 0 sysvmsgpl 40 33 0 27 1 0 1 1 0 8 0 semapl 112 86 0 76 1 0 1 1 0 8 0 shmpl 112 28 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1837 0 434 46 0 46 46 0 8 0 ffsino 240 1837 0 434 83 0 83 83 0 8 0 nchpl 144 2666 0 1053 61 0 61 61 0 8 0 uvmvnodes 72 2017 0 0 37 0 37 37 0 8 0 vnodes 208 2017 0 0 107 0 107 107 0 8 0 namei 1024 7313 0 7313 1 0 1 1 0 8 1 vcpupl 1984 1 0 0 1 0 1 1 0 8 0 vmpool 528 1 0 0 1 0 1 1 0 8 0 scxspl 192 7584 0 7583 1 0 1 1 0 8 0 plimitpl 152 36 0 29 1 0 1 1 0 8 0 sigapl 432 470 0 457 2 0 2 2 0 8 0 futexpl 56 8835 0 8835 1 0 1 1 0 8 1 knotepl 112 75 0 56 1 0 1 1 0 8 0 kqueuepl 104 62 0 58 1 0 1 1 0 8 0 pipelkpl 16 149 0 139 1 0 1 1 0 8 0 pipepl 120 298 0 279 1 0 1 1 0 8 0 fdescpl 432 471 0 457 2 0 2 2 0 8 0 filepl 120 4010 0 3903 4 0 4 4 0 8 0 lockfpl 104 73 0 72 1 0 1 1 0 8 0 lockfspl 48 29 0 28 1 0 1 1 0 8 0 sessionpl 112 17 0 7 1 0 1 1 0 8 0 pgrppl 48 25 0 15 1 0 1 1 0 8 0 ucredpl 96 358 0 351 1 0 1 1 0 8 0 zombiepl 144 457 0 457 1 0 1 1 0 8 1 processpl 896 487 0 457 4 0 4 4 0 8 0 procpl 624 851 0 814 4 0 4 4 0 8 0 sosppl 128 11 0 11 1 0 1 1 0 8 1 sockpl 400 960 0 939 5 0 5 5 0 8 2 mcl64k 65536 43 0 43 1 0 1 1 0 8 1 mcl16k 16384 6 0 6 1 1 0 1 0 8 0 mcl12k 12288 12 0 12 2 1 1 1 0 8 1 mcl9k 9216 6 0 6 1 0 1 1 0 8 1 mcl8k 8192 19 0 19 1 0 1 1 0 8 1 mcl4k 4096 38 0 38 2 1 1 1 0 8 1 mcl2k2 2112 6 0 6 1 1 0 1 0 8 0 mcl2k 2048 63096 0 63038 18 9 9 15 0 8 1 mtagpl 80 35 0 21 2 1 1 1 0 8 0 mbufpl 256 103760 0 103631 27 9 18 21 0 8 4 bufpl 280 4889 0 178 337 0 337 337 0 8 0 anonpl 16 54439 0 38311 68 1 67 67 0 107 1 amapchunkpl 152 2091 0 1956 14 1 13 13 0 158 6 amappl16 192 2163 0 1281 46 0 46 46 0 8 1 amappl15 184 51 0 46 1 0 1 1 0 8 0 amappl14 176 32 0 30 1 0 1 1 0 8 0 amappl13 168 1 0 1 1 1 0 1 0 8 0 amappl12 160 4 0 3 1 0 1 1 0 8 0 amappl11 152 182 0 169 1 0 1 1 0 8 0 amappl10 144 11 0 10 1 0 1 1 0 8 0 amappl9 136 694 0 689 1 0 1 1 0 8 0 amappl8 128 249 0 228 1 0 1 1 0 8 0 amappl7 120 90 0 80 1 0 1 1 0 8 0 amappl6 112 179 0 175 1 0 1 1 0 8 0 amappl5 104 144 0 133 1 0 1 1 0 8 0 amappl4 96 695 0 664 1 0 1 1 0 8 0 amappl3 88 136 0 128 1 0 1 1 0 8 0 amappl2 80 3002 0 2932 3 1 2 3 0 8 0 amappl1 72 17871 0 17451 26 16 10 20 0 8 0 amappl 80 1076 0 1033 3 1 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 29 0 2 1 0 1 1 0 8 0 uaddrrnd 24 472 0 457 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 472 0 457 1 0 1 1 0 8 0 vmmpekpl 168 7209 0 7183 2 0 2 2 0 8 0 vmmpepl 168 62921 0 60951 115 20 95 111 0 357 6 vmsppl 272 471 0 457 3 1 2 2 0 8 0 pdppl 4096 950 0 915 6 1 5 6 0 8 0 pvpl 32 179852 0 160722 164 0 164 164 0 265 8 pmappl 200 471 0 457 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 175 0 24 5 0 5 5 0 8 0