uvm_fault(0xffffffff823168f0, 0xffff800003bb6000, 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(0xffffffff823168f0, 0xffff800003bb6000, 0, 1) -> e memcpy(fffffd807e4051c8,ffff800003bb5f0d,7,fffffd807e4051c8,6d639b8203a16684,ffff800020c71808) at memcpy+0x15 end trace frame: 0xffff800020c71710, count: 0 ddb{0}> trace memcpy(fffffd807e4051c8,ffff800003bb5f0d,7,fffffd807e4051c8,6d639b8203a16684,ffff800020c71808) at memcpy+0x15 rtrequest(1,ffff800020c71808,38,ffff800020c71750,7) at rtrequest+0x83c sys/net/route.c:917 rtm_output(ffff800003bb5f00,ffff800020c71800,ffff800020c71808,38,7) at rtm_output+0x760 sys/net/rtsock.c:888 route_output(fffffd8068a6e500,fffffd806f73b600,0,0) at route_output+0x79b sys/net/rtsock.c:806 route_usrreq(fffffd806f73b600,9,fffffd8068a6e500,0,0,ffff800020b39c38) at route_usrreq+0x35d sys/net/rtsock.c:271 sosend(fffffd806f73b600,0,ffff800020c71ac8,0,0,0) at sosend+0x6eb sys/kern/uipc_socket.c:513 sendit(ffff800020b39c38,8,ffff800020c71b88,0,ffff800020c71c50) at sendit+0x590 sys/kern/uipc_syscalls.c:662 sys_sendto(ffff800020b39c38,ffff800020c71c68,ffff800020c71c50) at sys_sendto+0x92 syscall(ffff800020c71d00) at syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(ffff800020c71d00) at syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574 Xsyscall(6,0,ffffffffffffffd8,0,6,f849be64010) at Xsyscall+0x128 end of kernel end trace frame: 0xf873c6eba30, count: -10 ddb{0}> show registers rdi 0xffff800003bb52f0 rsi 0xffff800003bb5ffd rbp 0xffff800020c71600 rbx 0xffff800003bb5f0d rdx 0x100 rcx 0x2 rax 0xfffffffffffff2f3 r8 0 r9 0x5 r10 0x977fb30494504e5f r11 0xffff800003bb5200 r12 0xffff800003bb5200 r13 0x100 r14 0 r15 0xfffffd807e4051c8 rip 0xffffffff811afcf5 memcpy+0x15 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff800020c71598 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{0}> show proc PROC (syz-executor.1) pid=169227 stat=onproc flags process=0 proc=4000000 pri=76, usrpri=76, nice=20 forw=0xffffffffffffffff, list=0xffff800020b38018,0xffffffff82383fe0 process=0xffff800020b8c6a8 user=0xffff800020c6c000, vmspace=0xfffffd807effe9d8 estcpu=26, cpticks=4, pctcpu=0.1 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 81857 344792 10182 0 2 0 syz-executor.1 *81857 169227 10182 0 7 0x4000000 syz-executor.1 8064 465929 96729 0 7 0x480 syz-executor.0 8064 306222 96729 0 3 0x4000080 ttyout syz-executor.0 8064 285813 96729 0 3 0x4000080 fsleep syz-executor.0 8064 234211 96729 0 3 0x4000080 fsleep syz-executor.0 96729 127617 12432 0 2 0x482 syz-executor.0 10182 183168 12432 0 2 0x482 syz-executor.1 53156 437281 1 0 3 0x100083 ttyin getty 3614 60859 0 0 3 0x14200 bored sosplice 12432 392405 76771 0 3 0x82 thrsleep syz-fuzzer 12432 519960 76771 0 3 0x4000082 thrsleep syz-fuzzer 12432 59828 76771 0 3 0x4000082 thrsleep syz-fuzzer 12432 497165 76771 0 3 0x4000082 thrsleep syz-fuzzer 12432 449981 76771 0 3 0x4000082 thrsleep syz-fuzzer 12432 450170 76771 0 3 0x4000082 thrsleep syz-fuzzer 12432 17237 76771 0 3 0x4000082 thrsleep syz-fuzzer 12432 258140 76771 0 3 0x4000082 thrsleep syz-fuzzer 12432 442523 76771 0 3 0x4000082 thrsleep syz-fuzzer 12432 216654 76771 0 3 0x4000082 kqread syz-fuzzer 76771 302585 61569 0 3 0x10008a pause ksh 61569 471252 71955 0 3 0x92 select sshd 71955 66294 1 0 3 0x80 select sshd 90551 39142 73993 74 3 0x100092 bpf pflogd 73993 214787 1 0 3 0x80 netio pflogd 65536 316685 84 73 2 0x100090 syslogd 84 472640 1 0 3 0x100082 netio syslogd 60332 454803 1 77 3 0x100090 poll dhclient 68095 197476 1 0 3 0x80 poll dhclient 8214 148560 0 0 3 0x14200 pgzero zerothread 75280 496052 0 0 3 0x14200 aiodoned aiodoned 26258 509435 0 0 3 0x14200 syncer update 36797 166692 0 0 3 0x14200 cleaner cleaner 35512 34723 0 0 3 0x14200 reaper reaper 14818 100785 0 0 3 0x14200 pgdaemon pagedaemon 7278 416761 0 0 3 0x14200 bored crynlk 20550 67140 0 0 3 0x14200 bored crypto 83634 351132 0 0 3 0x40014200 acpi0 acpi0 14539 89001 0 0 3 0x40014200 idle1 45749 172328 0 0 3 0x14200 bored softnet 41979 73231 0 0 3 0x14200 bored systqmp 52688 213013 0 0 3 0x14200 bored systq 98260 384135 0 0 3 0x40014200 bored softclock 70503 42272 0 0 3 0x40014200 idle0 91513 239020 0 0 3 0x14200 bored smr 1 343473 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 81857 (syz-executor.1) thread 0xffff800020b39c38 (169227) exclusive rwlock netlock r = 0 (0xffffffff8219bcf8) 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 (0xffffffff8236a688) 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 9520 6413K 6426K 78643K 10769 0 0 pcb 26 9K 10K 78643K 589 0 0 rtable 106 4K 4K 78643K 387 0 0 ifaddr 59 13K 13K 78643K 115 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1477 0 0 iov 0 0K 12K 78643K 41 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1191 75K 75K 78643K 1615 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 12 0 0 VM map 2 1K 1K 78643K 2 0 0 sem 12 0K 0K 78643K 102 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12628 0 0 file desc 6 17K 25K 78643K 617 0 0 sigio 0 0K 0K 78643K 6 0 0 proc 53 50K 83K 78643K 444 0 0 subproc 64 65538K 67586K 78643K 204 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 39 0 0 in_multi 33 2K 2K 78643K 112 0 0 ether_multi 1 0K 0K 78643K 9 0 0 mrt 0 0K 0K 78643K 1 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 72 318K 318K 78643K 72 0 0 exec 0 0K 1K 78643K 230 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 92 30K 30K 78643K 2755 0 0 UVM aobj 33 4K 4K 78643K 36 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 30 0 0 NDP 12 0K 0K 78643K 36 0 0 temp 147 2369K 2435K 78643K 4878 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 8 0 4 1 0 1 1 0 8 0 inpcbpl 280 277 0 270 1 0 1 1 0 8 0 plimitpl 152 37 0 29 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtentry 112 78 0 37 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 10 0 10 1 1 0 1 0 8 0 tcpcb 544 104 0 100 1 0 1 1 0 8 0 nd6 48 12 0 8 1 0 1 1 0 8 0 ppxss 1128 6 0 6 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 21 0 10 1 0 1 1 0 8 0 pfstkey 112 21 0 10 1 0 1 1 0 8 0 pfstate 328 21 0 10 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 256 352 0 164 12 0 12 12 0 8 0 art_table 32 353 0 164 2 0 2 2 0 8 0 art_node 16 76 0 42 1 0 1 1 0 8 0 semapl 112 98 0 88 1 0 1 1 0 8 0 shmpl 112 34 0 3 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 2617 0 1195 46 0 46 46 0 8 0 ffsino 272 2617 0 1195 96 0 96 96 0 8 1 nchpl 144 3663 0 2031 61 0 61 61 0 8 0 uvmvnodes 72 2768 0 0 51 0 51 51 0 8 0 vnodes 200 2768 0 0 146 0 146 146 0 8 0 namei 1024 10194 0 10194 3 2 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 scsiplug 64 2 0 2 2 1 1 1 0 8 1 scxspl 192 9752 0 9752 12 11 1 6 0 8 1 sigapl 432 805 0 789 3 1 2 3 0 8 0 futexpl 56 6483 0 6481 1 0 1 1 0 8 0 knotepl 112 181 0 162 1 0 1 1 0 8 0 kqueuepl 104 73 0 71 1 0 1 1 0 8 0 pipepl 112 496 0 475 2 1 1 1 0 8 0 fdescpl 488 806 0 789 3 0 3 3 0 8 0 filepl 152 4337 0 4221 6 1 5 5 0 8 0 lockfpl 104 196 0 196 3 2 1 1 0 8 1 lockfspl 32 357 0 357 3 2 1 1 0 8 1 sessionpl 112 23 0 12 1 0 1 1 0 8 0 pgrppl 48 32 0 21 1 0 1 1 0 8 0 ucredpl 96 788 0 779 1 0 1 1 0 8 0 zombiepl 144 789 0 789 3 2 1 1 0 8 1 processpl 840 822 0 789 4 0 4 4 0 8 0 procpl 600 2010 0 1964 4 0 4 4 0 8 0 srpgc 64 24 0 24 2 1 1 1 0 8 1 sosppl 128 5 0 5 2 2 0 1 0 8 0 sockpl 384 821 0 801 4 1 3 3 0 8 1 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 6 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 5 0 0 1 0 1 1 0 8 0 mcl2k2 2112 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 125 0 0 15 0 15 15 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 236 0 0 12 0 12 12 0 8 0 bufpl 256 6609 0 1147 342 0 342 342 0 8 0 anonpl 16 90261 0 79624 51 5 46 48 0 125 3 amapchunkpl 152 4313 0 4089 15 6 9 9 0 158 0 amappl16 192 3812 0 3342 44 12 32 36 0 8 8 amappl15 184 58 0 54 1 0 1 1 0 8 0 amappl14 176 42 0 38 2 1 1 1 0 8 0 amappl13 168 26 0 23 1 0 1 1 0 8 0 amappl12 160 301 0 297 2 1 1 1 0 8 0 amappl11 152 25 0 10 1 0 1 1 0 8 0 amappl10 144 115 0 109 1 0 1 1 0 8 0 amappl9 136 849 0 845 1 0 1 1 0 8 0 amappl8 128 411 0 396 1 0 1 1 0 8 0 amappl7 120 68 0 62 1 0 1 1 0 8 0 amappl6 112 58 0 52 1 0 1 1 0 8 0 amappl5 104 397 0 382 1 0 1 1 0 8 0 amappl4 96 1032 0 1001 2 1 1 2 0 8 0 amappl3 88 143 0 136 1 0 1 1 0 8 0 amappl2 80 5802 0 5737 3 1 2 2 0 8 0 amappl1 72 25861 0 25398 25 15 10 20 0 8 0 amappl 72 2282 0 2241 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 35 0 3 1 0 1 1 0 8 0 uaddrrnd 24 806 0 789 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 806 0 789 1 0 1 1 0 8 0 vmmpekpl 168 10422 0 10398 2 0 2 2 0 8 0 vmmpepl 168 92978 0 91405 107 27 80 80 0 357 11 vmsppl 360 805 0 789 2 0 2 2 0 8 0 pdppl 4096 1620 0 1578 6 0 6 6 0 8 0 pvpl 32 272432 0 257891 142 19 123 126 0 265 5 pmappl 224 805 0 789 2 1 1 2 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 499 0 5 15 0 15 15 0 8 0