uvm_fault(0xffffffff8225d700, 0xffff8000019a3000, 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(0xffffffff8225d700, 0xffff8000019a3000, 0, 1) -> e memcpy(fffffd807a8a2a88,ffff8000019a2f0d,7,fffffd807a8a2a88,a7d58cf2628d6444,ffff800020c27518) at memcpy+0x15 end trace frame: 0xffff800020c27420, count: 0 ddb{1}> trace memcpy(fffffd807a8a2a88,ffff8000019a2f0d,7,fffffd807a8a2a88,a7d58cf2628d6444,ffff800020c27518) at memcpy+0x15 rtrequest(1,ffff800020c27518,38,ffff800020c27460,7) at rtrequest+0x83c sys/net/route.c:917 rtm_output(ffff8000019a2f00,ffff800020c27510,ffff800020c27518,38,7) at rtm_output+0x760 sys/net/rtsock.c:888 route_output(fffffd806d5fc600,fffffd806f73b900,0,0) at route_output+0x79b sys/net/rtsock.c:806 route_usrreq(fffffd806f73b900,9,fffffd806d5fc600,0,0,ffff800020b75530) at route_usrreq+0x35d sys/net/rtsock.c:271 sosend(fffffd806f73b900,0,ffff800020c277d8,0,0,fffffffc) at sosend+0x6eb sys/kern/uipc_socket.c:513 sendit(ffff800020b75530,3,ffff800020c27898,fffffffc,ffff800020c27960) at sendit+0x590 sys/kern/uipc_syscalls.c:662 sys_sendto(ffff800020b75530,ffff800020c27978,ffff800020c27960) at sys_sendto+0x92 syscall(ffff800020c27a10) at syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(ffff800020c27a10) at syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574 Xsyscall(6,0,ffffffffffffffd8,0,6,dd7ddb17010) at Xsyscall+0x128 end of kernel end trace frame: 0xdda3348f2c0, count: -10 ddb{1}> show registers rdi 0xffff8000019a22f0 rsi 0xffff8000019a2ffd rbp 0xffff800020c27310 rbx 0xffff8000019a2f0d rdx 0x100 rcx 0x2 rax 0xfffffffffffff2f3 r8 0 r9 0x5 r10 0xc36d14c3c764d900 r11 0xffff8000019a2200 r12 0xffff8000019a2200 r13 0x100 r14 0 r15 0xfffffd807a8a2a88 rip 0xffffffff8143f675 memcpy+0x15 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff800020c272a8 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{1}> show proc PROC (syz-executor.1) pid=219696 stat=onproc flags process=0 proc=4000000 pri=81, usrpri=81, nice=20 forw=0xffffffffffffffff, list=0xffff800020b74978,0xffffffff8234ec80 process=0xffff800020b8d080 user=0xffff800020c22000, vmspace=0xfffffd807effd870 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 18420 519272 37152 0 2 0 syz-executor.1 *18420 219696 37152 0 7 0x4000000 syz-executor.1 37152 323460 61092 0 3 0x82 nanosleep syz-executor.1 32827 149542 0 0 3 0x14200 bored sosplice 461 275955 61092 0 3 0x82 nanosleep syz-executor.0 61092 151150 9354 0 3 0x82 thrsleep syz-fuzzer 61092 134606 9354 0 3 0x4000082 thrsleep syz-fuzzer 61092 34498 9354 0 3 0x4000082 thrsleep syz-fuzzer 61092 10840 9354 0 3 0x4000082 kqread syz-fuzzer 61092 274177 9354 0 3 0x4000082 thrsleep syz-fuzzer 61092 469341 9354 0 3 0x4000082 thrsleep syz-fuzzer 61092 499212 9354 0 3 0x4000082 thrsleep syz-fuzzer 61092 379978 9354 0 3 0x4000082 thrsleep syz-fuzzer 61092 375990 9354 0 3 0x4000082 thrsleep syz-fuzzer 61092 33599 9354 0 3 0x4000082 thrsleep syz-fuzzer 9354 422323 65730 0 3 0x10008a pause ksh 65730 487617 8620 0 3 0x92 select sshd 6073 150144 1 0 3 0x100083 ttyin getty 8620 187893 1 0 3 0x80 select sshd 39359 455206 89668 74 3 0x100092 bpf pflogd 89668 90739 1 0 3 0x80 netio pflogd 50770 515355 54969 73 2 0x100090 syslogd 54969 480553 1 0 3 0x100082 netio syslogd 33183 235170 1 77 3 0x100090 poll dhclient 53126 76642 1 0 3 0x80 poll dhclient 35161 403323 0 0 2 0x14200 zerothread 28453 420108 0 0 3 0x14200 aiodoned aiodoned 46842 5628 0 0 3 0x14200 syncer update 71208 13208 0 0 3 0x14200 cleaner cleaner 924 140712 0 0 7 0x14200 reaper 19531 248398 0 0 3 0x14200 pgdaemon pagedaemon 6868 485110 0 0 3 0x14200 bored crynlk 55836 16252 0 0 3 0x14200 bored crypto 30649 348046 0 0 3 0x40014200 acpi0 acpi0 44290 27649 0 0 3 0x40014200 idle1 72114 451461 0 0 3 0x14200 bored softnet 14342 176522 0 0 3 0x14200 bored systqmp 94021 393795 0 0 3 0x14200 bored systq 23453 326756 0 0 3 0x40014200 bored softclock 34471 146326 0 0 3 0x40014200 idle0 68670 342629 0 0 3 0x14200 bored smr 1 209433 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 18420 (syz-executor.1) thread 0xffff800020b75530 (219696) exclusive rwlock netlock r = 0 (0xffffffff821d9928) 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 (0xffffffff823780b8) locked @ /syzkaller/managers/multicore/kernel/sys/arch/amd64/amd64/trap.c:161 #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{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9517 6413K 6445K 78643K 10823 0 0 pcb 26 9K 11K 78643K 347 0 0 rtable 106 4K 4K 78643K 343 0 0 ifaddr 59 13K 13K 78643K 125 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1475 0 0 iov 0 0K 24K 78643K 75 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1197 75K 75K 78643K 1442 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 17 0 0 VM map 2 1K 1K 78643K 2 0 0 sem 12 0K 1K 78643K 119 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12628 0 0 file desc 5 13K 25K 78643K 509 0 0 sigio 0 0K 0K 78643K 6 0 0 proc 53 50K 71K 78643K 428 0 0 subproc 64 65538K 67586K 78643K 102 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 44 0 0 in_multi 33 2K 2K 78643K 49 0 0 ether_multi 1 0K 0K 78643K 5 0 0 mrt 0 0K 0K 78643K 4 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 48 212K 212K 78643K 48 0 0 exec 0 0K 1K 78643K 235 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 86 21K 22K 78643K 2515 0 0 UVM aobj 39 2K 2K 78643K 43 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 22 0 0 NDP 12 0K 0K 78643K 34 0 0 temp 173 2379K 2443K 78643K 4632 0 0 kqueue 0 0K 0K 78643K 2 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 5 0 1 1 0 1 1 0 8 0 inpcbpl 280 286 0 279 1 0 1 1 0 8 0 plimitpl 152 42 0 34 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtentry 112 51 0 10 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 13 0 13 1 1 0 1 0 8 0 tcpcb 544 94 0 90 1 0 1 1 0 8 0 nd6 48 6 0 2 1 0 1 1 0 8 0 ppxss 1128 12 0 12 2 1 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 19 0 8 1 0 1 1 0 8 0 pfstkey 112 19 0 8 1 0 1 1 0 8 0 pfstate 328 19 0 8 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 256 229 0 41 12 0 12 12 0 8 0 art_table 32 230 0 41 2 0 2 2 0 8 0 art_node 16 49 0 15 1 0 1 1 0 8 0 sysvmsgpl 40 14 0 12 3 2 1 1 0 8 0 semapl 112 115 0 105 1 0 1 1 0 8 0 shmpl 112 41 0 4 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 2289 0 876 46 0 46 46 0 8 0 ffsino 272 2289 0 876 95 0 95 95 0 8 0 nchpl 144 3200 0 1567 61 0 61 61 0 8 0 uvmvnodes 72 2417 0 0 44 0 44 44 0 8 0 vnodes 200 2417 0 0 128 0 128 128 0 8 0 namei 1024 9344 0 9344 1 0 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 scsiplug 64 3 0 3 2 1 1 1 0 8 1 scxspl 192 9747 0 9747 11 10 1 6 0 8 1 sigapl 432 705 0 690 3 1 2 3 0 8 0 futexpl 56 5948 0 5948 1 0 1 1 0 8 1 knotepl 112 173 0 154 1 0 1 1 0 8 0 kqueuepl 104 135 0 133 1 0 1 1 0 8 0 pipepl 112 500 0 481 2 1 1 2 0 8 0 fdescpl 488 706 0 690 3 0 3 3 0 8 0 filepl 152 4337 0 4237 6 1 5 6 0 8 1 lockfpl 104 124 0 124 2 1 1 1 0 8 1 lockfspl 32 49 0 49 2 1 1 1 0 8 1 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 27 0 16 1 0 1 1 0 8 0 ucredpl 96 654 0 645 1 0 1 1 0 8 0 zombiepl 144 690 0 689 2 1 1 1 0 8 0 processpl 840 722 0 689 4 0 4 4 0 8 0 procpl 600 1822 0 1779 4 0 4 4 0 8 0 srpgc 64 6 0 6 1 1 0 1 0 8 0 sosppl 128 5 0 5 2 2 0 1 0 8 0 sockpl 384 586 0 566 4 1 3 4 0 8 1 mcl64k 65536 8 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 10 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 123 0 0 15 0 15 15 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 141 0 0 8 0 8 8 0 8 0 bufpl 256 7230 0 1147 381 0 381 381 0 8 0 anonpl 16 85121 0 76041 65 20 45 54 0 125 6 amapchunkpl 152 3699 0 3609 9 0 9 9 0 158 4 amappl16 192 3717 0 3232 57 28 29 37 0 8 4 amappl15 184 57 0 53 1 0 1 1 0 8 0 amappl14 176 25 0 22 2 1 1 1 0 8 0 amappl13 168 208 0 204 1 0 1 1 0 8 0 amappl12 160 247 0 242 1 0 1 1 0 8 0 amappl11 152 22 0 7 1 0 1 1 0 8 0 amappl10 144 72 0 68 1 0 1 1 0 8 0 amappl9 136 658 0 653 1 0 1 1 0 8 0 amappl8 128 210 0 194 1 0 1 1 0 8 0 amappl7 120 31 0 26 1 0 1 1 0 8 0 amappl6 112 53 0 47 1 0 1 1 0 8 0 amappl5 104 354 0 338 1 0 1 1 0 8 0 amappl4 96 1111 0 1078 2 1 1 2 0 8 0 amappl3 88 135 0 130 1 0 1 1 0 8 0 amappl2 80 4997 0 4932 2 0 2 2 0 8 0 amappl1 72 24684 0 24237 26 16 10 20 0 8 0 amappl 72 2066 0 2029 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 42 0 4 1 0 1 1 0 8 0 uaddrrnd 24 706 0 690 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 706 0 690 1 0 1 1 0 8 0 vmmpekpl 168 9973 0 9949 2 0 2 2 0 8 0 vmmpepl 168 82353 0 80782 106 29 77 82 0 357 8 vmsppl 360 705 0 689 2 0 2 2 0 8 0 pdppl 4096 1420 0 1378 6 0 6 6 0 8 0 pvpl 32 251319 0 239043 148 24 124 139 0 265 21 pmappl 224 705 0 689 2 1 1 2 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 531 0 3 16 0 16 16 0 8 0