((uvm_fault(0xffffffff8223b348, 0xffff800001769000, 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(0xffffffff8223b348, 0xffff800001769000, 0, 1) -> e memcpy(fffffd8077fa5238,ffff800001768f0d,0,fffffd8077fa5238,80569c7bb38d00a7,ffff800020c4ef98) at memcpy+0x15 end trace frame: 0xffff800020c4eea0, count: 0 ddb{0}> trace memcpy(fffffd8077fa5238,ffff800001768f0d,0,fffffd8077fa5238,80569c7bb38d00a7,ffff800020c4ef98) at memcpy+0x15 rtrequest(1,ffff800020c4ef98,0,ffff800020c4eee0,0) at rtrequest+0x83c sys/net/route.c:917 rtm_output(ffff800001768f00,ffff800020c4ef90,ffff800020c4ef98,0,0) at rtm_output+0x760 sys/net/rtsock.c:888 route_output(fffffd8065f5ba00,fffffd8077c9c4a8,0,0) at route_output+0x79b sys/net/rtsock.c:806 route_usrreq(fffffd8077c9c4a8,9,fffffd8065f5ba00,0,0,ffff800020b752d8) at route_usrreq+0x35d sys/net/rtsock.c:271 sosend(fffffd8077c9c4a8,0,ffff800020c4f258,0,0,0) at sosend+0x6eb sys/kern/uipc_socket.c:513 sendit(ffff800020b752d8,4,ffff800020c4f318,0,ffff800020c4f3e0) at sendit+0x590 sys/kern/uipc_syscalls.c:662 sys_sendto(ffff800020b752d8,ffff800020c4f3f8,ffff800020c4f3e0) at sys_sendto+0x92 syscall(ffff800020c4f490) at syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(ffff800020c4f490) at syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574 Xsyscall(6,0,ffffffffffffffd8,0,6,1af4f7300d8) at Xsyscall+0x128 end of kernel end trace frame: 0x1b24e232310, count: -10 ddb{0}> show registers rdi 0xffff8000017681f0 rsi 0xffff800001768ffd rbp 0xffff800020c4ed90 rbx 0xffff800001768f0d rdx 0x100 rcx 0x2 rax 0xfffffffffffff1f3 r8 0 r9 0x5 r10 0x28996cdbcb76a5d0 r11 0xffff800001768100 r12 0xffff800001768100 r13 0x100 r14 0 r15 0xfffffd8077fa5238 rip 0xffffffff816fc665 memcpy+0x15 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff800020c4ed28 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{0}> show proc PROC (syz-executor.1) pid=245092 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020b74720,0xffffffff8237cfc8 process=0xffff800020b8d080 user=0xffff800020c4a000, vmspace=0xfffffd807effd9d8 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 53147 508790 11026 0 2 0 syz-executor.1 53147 37708 11026 0 3 0x4000080 fsleep syz-executor.1 *53147 245092 11026 0 7 0x4000000 syz-executor.1 86348 394255 15786 0 2 0x482 syz-executor.0 11026 489127 15786 0 7 0x482 syz-executor.1 63051 493205 0 0 3 0x14200 bored sosplice 15786 204355 24002 0 3 0x82 thrsleep syz-fuzzer 15786 414189 24002 0 3 0x4000082 thrsleep syz-fuzzer 15786 518462 24002 0 3 0x4000082 thrsleep syz-fuzzer 15786 336341 24002 0 3 0x4000082 thrsleep syz-fuzzer 15786 88593 24002 0 3 0x4000082 kqread syz-fuzzer 15786 174343 24002 0 3 0x4000082 thrsleep syz-fuzzer 15786 130280 24002 0 3 0x4000082 thrsleep syz-fuzzer 15786 128964 24002 0 3 0x4000082 thrsleep syz-fuzzer 15786 392223 24002 0 3 0x4000082 thrsleep syz-fuzzer 15786 92680 24002 0 3 0x4000082 thrsleep syz-fuzzer 24002 395851 11650 0 3 0x10008a pause ksh 11650 181807 42020 0 3 0x92 select sshd 58626 434006 1 0 3 0x100083 ttyin getty 42020 469591 1 0 3 0x80 select sshd 86478 493857 83419 74 3 0x100092 bpf pflogd 83419 437133 1 0 3 0x80 netio pflogd 62329 208988 93995 73 2 0x100090 syslogd 93995 411094 1 0 3 0x100082 netio syslogd 37342 449563 1 77 3 0x100090 poll dhclient 63453 426897 1 0 3 0x80 poll dhclient 54160 449503 0 0 3 0x14200 pgzero zerothread 1090 517847 0 0 3 0x14200 aiodoned aiodoned 63963 398655 0 0 3 0x14200 syncer update 61817 363823 0 0 3 0x14200 cleaner cleaner 65026 252867 0 0 3 0x14200 reaper reaper 20484 436773 0 0 3 0x14200 pgdaemon pagedaemon 23162 241662 0 0 3 0x14200 bored crynlk 90330 476627 0 0 3 0x14200 bored crypto 85917 457888 0 0 3 0x40014200 acpi0 acpi0 6727 508308 0 0 3 0x40014200 idle1 11567 147087 0 0 3 0x14200 bored softnet 92177 407574 0 0 3 0x14200 bored systqmp 86610 139064 0 0 3 0x14200 bored systq 2983 60524 0 0 3 0x40014200 bored softclock 18574 9078 0 0 3 0x40014200 idle0 36770 772 0 0 3 0x14200 bored smr 1 422786 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 53147 (syz-executor.1) thread 0xffff800020b752d8 (245092) exclusive rwlock netlock r = 0 (0xffffffff821cd098) locked @ /syzkaller/managers/multicore/kernel/sys/net/rtsock.c:883 #0 witness_lock+0x594 sys/kern/subr_witness.c:1201 #1 rtm_output+0x6b0 sys/net/rtsock.c:884 #2 route_output+0x79b sys/net/rtsock.c:806 #3 route_usrreq+0x35d sys/net/rtsock.c:271 #4 sosend+0x6eb sys/kern/uipc_socket.c:513 #5 sendit+0x590 sys/kern/uipc_syscalls.c:662 #6 sys_sendto+0x92 #7 syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline] #7 syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574 #8 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82394290) locked @ /syzkaller/managers/multicore/kernel/sys/arch/amd64/amd64/softintr.c:87 #0 witness_lock+0x594 sys/kern/subr_witness.c:1201 #1 solock+0x7e sys/kern/uipc_socket2.c:292 #2 sosend+0x586 sys/kern/uipc_socket.c:501 #3 sendit+0x590 sys/kern/uipc_syscalls.c:662 #4 sys_sendto+0x92 #5 syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline] #5 syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574 #6 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9530 6432K 6441K 78643K 10937 0 0 pcb 27 9K 11K 78643K 527 0 0 rtable 103 4K 4K 78643K 637 0 0 ifaddr 62 14K 14K 78643K 222 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1486 0 0 iov 0 0K 24K 78643K 89 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1198 75K 76K 78643K 1697 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 5K 78643K 14 0 0 VM map 2 1K 1K 78643K 2 0 0 sem 12 0K 1K 78643K 147 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12628 0 0 file desc 5 13K 21K 78643K 859 0 0 sigio 0 0K 0K 78643K 15 0 0 proc 54 51K 83K 78643K 550 0 0 subproc 64 65538K 67586K 78643K 306 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 ip_moptions 0 0K 0K 78643K 130 0 0 in_multi 33 2K 2K 78643K 147 0 0 ether_multi 1 0K 0K 78643K 9 0 0 mrt 0 0K 0K 78643K 2 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 78 344K 344K 78643K 78 0 0 exec 0 0K 1K 78643K 297 0 0 pfkey data 0 0K 0K 78643K 2 0 0 pagedep 1 8K 8K 78643K 1 0 0 inodedep 1 32K 32K 78643K 1 0 0 newblk 1 0K 0K 78643K 1 0 0 VM swap 7 26K 26K 78643K 7 0 0 UVM amap 85 20K 29K 78643K 3718 0 0 UVM aobj 40 2K 2K 78643K 42 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 0K 78643K 37 0 0 NDP 13 0K 0K 78643K 69 0 0 temp 179 2379K 2447K 78643K 5934 0 0 kqueue 0 0K 0K 78643K 3 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 11 0 7 1 0 1 1 0 8 0 inpcbpl 280 529 0 522 2 1 1 2 0 8 0 plimitpl 152 63 0 55 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtentry 112 106 0 65 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 25 0 25 1 1 0 1 0 8 0 tcpcb 544 209 0 205 1 0 1 1 0 8 0 nd6 48 18 0 14 1 0 1 1 0 8 0 ppxss 1128 24 0 24 4 3 1 1 0 8 1 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 31 0 21 1 0 1 1 0 8 0 pfstkey 112 31 0 21 1 0 1 1 0 8 0 pfstate 328 31 0 21 2 0 2 2 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 256 478 0 289 12 0 12 12 0 8 0 art_table 32 479 0 289 2 0 2 2 0 8 0 art_node 16 103 0 69 1 0 1 1 0 8 0 sysvmsgpl 40 24 0 12 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 145 0 135 1 0 1 1 0 8 0 shmpl 112 40 0 2 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 2904 0 1464 47 0 47 47 0 8 0 ffsino 272 2904 0 1464 97 0 97 97 0 8 0 nchpl 144 4314 0 2657 62 0 62 62 0 8 0 uvmvnodes 72 3137 0 0 58 0 58 58 0 8 0 vnodes 200 3137 0 0 166 0 166 166 0 8 0 namei 1024 12986 0 12986 4 3 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 scsiplug 64 5 0 5 2 2 0 1 0 8 0 scxspl 192 12341 0 12341 15 12 3 6 0 8 3 sigapl 432 1037 0 1022 2 0 2 2 0 8 0 futexpl 56 9991 0 9990 2 1 1 1 0 8 0 knotepl 112 369 0 350 1 0 1 1 0 8 0 kqueuepl 104 236 0 234 1 0 1 1 0 8 0 pipepl 112 750 0 731 3 2 1 2 0 8 0 fdescpl 488 1038 0 1022 3 0 3 3 0 8 0 filepl 152 6183 0 6082 9 4 5 7 0 8 0 lockfpl 104 262 0 262 3 2 1 1 0 8 1 lockfspl 32 226 0 226 3 2 1 1 0 8 1 sessionpl 112 25 0 14 1 0 1 1 0 8 0 pgrppl 48 38 0 27 1 0 1 1 0 8 0 ucredpl 96 1023 0 1013 1 0 1 1 0 8 0 zombiepl 144 1022 0 1021 4 3 1 1 0 8 0 processpl 840 1054 0 1021 4 0 4 4 0 8 0 procpl 600 2872 0 2828 4 0 4 4 0 8 0 srpgc 64 42 0 42 5 5 0 1 0 8 0 sosppl 128 8 0 8 4 4 0 1 0 8 0 sockpl 384 971 0 950 6 3 3 4 0 8 0 mcl64k 65536 257 0 0 33 5 28 33 0 8 1 mcl12k 12288 11 0 0 2 0 2 2 0 8 0 mcl9k 9216 8 0 0 1 0 1 1 0 8 0 mcl8k 8192 6 0 0 1 0 1 1 0 8 0 mcl4k 4096 7 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 132 0 0 16 0 16 16 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 347 0 0 22 1 21 21 0 8 0 bufpl 256 7672 0 1147 408 0 408 408 0 8 0 anonpl 16 117232 0 108358 64 19 45 48 0 125 7 amapchunkpl 152 6812 0 6721 25 16 9 9 0 158 5 amappl16 192 4375 0 3893 36 10 26 34 0 8 1 amappl15 184 210 0 206 1 0 1 1 0 8 0 amappl14 176 91 0 87 2 1 1 1 0 8 0 amappl13 168 60 0 56 1 0 1 1 0 8 0 amappl12 160 61 0 60 1 0 1 1 0 8 0 amappl11 152 168 0 153 1 0 1 1 0 8 0 amappl10 144 331 0 328 1 0 1 1 0 8 0 amappl9 136 752 0 749 1 0 1 1 0 8 0 amappl8 128 321 0 308 1 0 1 1 0 8 0 amappl7 120 199 0 195 1 0 1 1 0 8 0 amappl6 112 215 0 207 1 0 1 1 0 8 0 amappl5 104 199 0 184 1 0 1 1 0 8 0 amappl4 96 1225 0 1193 2 1 1 2 0 8 0 amappl3 88 203 0 198 1 0 1 1 0 8 0 amappl2 80 7829 0 7775 3 1 2 2 0 8 0 amappl1 72 32475 0 32024 25 15 10 20 0 8 0 amappl 72 3167 0 3130 1 0 1 1 0 75 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 dma64 64 259 0 259 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 17 0 17 1 1 0 1 0 8 0 aobjpl 64 41 0 2 1 0 1 1 0 8 0 uaddrrnd 24 1038 0 1022 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1038 0 1022 1 0 1 1 0 8 0 vmmpekpl 168 12649 0 12628 2 0 2 2 0 8 0 vmmpepl 168 117631 0 116140 119 38 81 86 0 357 12 vmsppl 360 1037 0 1022 2 0 2 2 0 8 0 pdppl 4096 2084 0 2044 6 0 6 6 0 8 0 pvpl 32 344936 0 332810 158 39 119 127 0 265 18 pmappl 224 1037 0 1022 4 3 1 2 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 609 0 12 18 0 18 18 0 8 0