login: uvm_fault(0xffffffff82238de8, 0xffff80000197d000, 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(0xffffffff82238de8, 0xffff80000197d000, 0, 1) -> e memcpy(fffffd8079bcfa18,ffff80000197cf0d,0,fffffd8079bcfa18,be39d0b59b7ec6d,ffff800020c26aa8) at memcpy+0x15 end trace frame: 0xffff800020c269b0, count: 0 ddb{1}> trace memcpy(fffffd8079bcfa18,ffff80000197cf0d,0,fffffd8079bcfa18,be39d0b59b7ec6d,ffff800020c26aa8) at memcpy+0x15 rtrequest(1,ffff800020c26aa8,0,ffff800020c269f0,0) at rtrequest+0x83c sys/net/route.c:917 rtm_output(ffff80000197cf00,ffff800020c26aa0,ffff800020c26aa8,0,0) at rtm_output+0x760 sys/net/rtsock.c:888 route_output(fffffd806b2a0e00,fffffd806f737780,0,0) at route_output+0x79b sys/net/rtsock.c:806 route_usrreq(fffffd806f737780,9,fffffd806b2a0e00,0,0,ffff800020b75788) at route_usrreq+0x35d sys/net/rtsock.c:271 sosend(fffffd806f737780,0,ffff800020c26d68,0,0,0) at sosend+0x6eb sys/kern/uipc_socket.c:513 sendit(ffff800020b75788,3,ffff800020c26e28,0,ffff800020c26ef0) at sendit+0x590 sys/kern/uipc_syscalls.c:662 sys_sendto(ffff800020b75788,ffff800020c26f08,ffff800020c26ef0) at sys_sendto+0x92 syscall(ffff800020c26fa0) at syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(ffff800020c26fa0) at syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574 Xsyscall(6,0,ffffffffffffffd8,0,6,6954c58d010) at Xsyscall+0x128 end of kernel end trace frame: 0x697cb5c67b0, count: -10 ddb{1}> show registers rdi 0xffff80000197cbf0 rsi 0xffff80000197cffd rbp 0xffff800020c268a0 rbx 0xffff80000197cf0d rdx 0x100 rcx 0x2 rax 0xfffffffffffffbf3 r8 0 r9 0x5 r10 0x7a921245d24633d9 r11 0xffff80000197cb00 r12 0xffff80000197cb00 r13 0x100 r14 0 r15 0xfffffd8079bcfa18 rip 0xffffffff8128fe45 memcpy+0x15 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff800020c26838 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{1}> show proc PROC (syz-executor.0) pid=56086 stat=onproc flags process=0 proc=4000000 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020b752d8,0xffffffff82382238 process=0xffff800020b8c9f0 user=0xffff800020c22000, vmspace=0xfffffd807effe9d8 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 39977 390812 42893 0 7 0 syz-executor.0 *39977 56086 42893 0 7 0x4000000 syz-executor.0 88410 355580 0 0 3 0x14200 bored sosplice 25601 393469 77233 0 3 0x82 nanosleep syz-executor.1 42893 382167 77233 0 3 0x82 nanosleep syz-executor.0 77233 367753 94793 0 3 0x82 thrsleep syz-fuzzer 77233 493167 94793 0 3 0x4000082 thrsleep syz-fuzzer 77233 121162 94793 0 3 0x4000082 thrsleep syz-fuzzer 77233 7984 94793 0 3 0x4000082 thrsleep syz-fuzzer 77233 101155 94793 0 3 0x4000082 thrsleep syz-fuzzer 77233 58143 94793 0 3 0x4000082 thrsleep syz-fuzzer 77233 325229 94793 0 3 0x4000082 thrsleep syz-fuzzer 77233 65403 94793 0 3 0x4000082 thrsleep syz-fuzzer 77233 387889 94793 0 3 0x4000082 kqread syz-fuzzer 77233 865 94793 0 3 0x4000082 thrsleep syz-fuzzer 94793 355418 39347 0 3 0x10008a pause ksh 39347 176430 59034 0 3 0x92 select sshd 37193 418657 1 0 3 0x100083 ttyin getty 59034 378804 1 0 3 0x80 select sshd 30769 137769 76864 74 3 0x100092 bpf pflogd 76864 264905 1 0 3 0x80 netio pflogd 23319 272836 3739 73 2 0x100090 syslogd 3739 332612 1 0 3 0x100082 netio syslogd 34526 282388 1 77 3 0x100090 poll dhclient 1759 194151 1 0 3 0x80 poll dhclient 23854 109625 0 0 3 0x14200 pgzero zerothread 4651 67392 0 0 3 0x14200 aiodoned aiodoned 43534 186386 0 0 3 0x14200 syncer update 78268 22305 0 0 3 0x14200 cleaner cleaner 3068 398333 0 0 3 0x14200 reaper reaper 17480 457211 0 0 3 0x14200 pgdaemon pagedaemon 75812 475550 0 0 3 0x14200 bored crynlk 46618 437932 0 0 3 0x14200 bored crypto 26506 243438 0 0 3 0x40014200 acpi0 acpi0 56819 109335 0 0 3 0x40014200 idle1 76870 102490 0 0 3 0x14200 bored softnet 65116 232200 0 0 3 0x14200 bored systqmp 784 431073 0 0 3 0x14200 bored systq 86755 478869 0 0 3 0x40014200 bored softclock 98317 132169 0 0 3 0x40014200 idle0 65142 280223 0 0 3 0x14200 bored smr 1 135797 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 39977 (syz-executor.0) thread 0xffff800020b75788 (56086) exclusive rwlock netlock r = 0 (0xffffffff821fc318) 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 (0xffffffff823959b0) 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 9471 6390K 6398K 78643K 10596 0 0 pcb 26 9K 10K 78643K 126 0 0 rtable 103 4K 4K 78643K 222 0 0 ifaddr 43 11K 11K 78643K 64 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1471 0 0 iov 0 0K 2K 78643K 4 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1196 75K 75K 78643K 1242 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 1K 78643K 2 0 0 VM map 2 1K 1K 78643K 2 0 0 sem 12 1K 1K 78643K 28 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12628 0 0 file desc 5 13K 21K 78643K 121 0 0 sigio 0 0K 0K 78643K 2 0 0 proc 53 50K 71K 78643K 342 0 0 subproc 64 65538K 67586K 78643K 68 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 10 0 0 in_multi 33 2K 2K 78643K 36 0 0 ether_multi 1 0K 0K 78643K 3 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 30 132K 132K 78643K 30 0 0 exec 0 0K 1K 78643K 198 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 81 20K 21K 78643K 1209 0 0 UVM aobj 10 2K 2K 78643K 10 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 14 0 0 NDP 7 0K 0K 78643K 16 0 0 temp 103 2366K 2430K 78643K 3480 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 4 0 0 1 0 1 1 0 8 0 inpcbpl 280 91 0 84 1 0 1 1 0 8 0 plimitpl 152 16 0 7 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtentry 112 42 0 1 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 21 0 21 1 1 0 1 0 8 0 tcpcb 544 30 0 26 1 0 1 1 0 8 0 nd6 48 4 0 0 1 0 1 1 0 8 0 ppxss 1128 4 0 4 1 0 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 13 0 2 1 0 1 1 0 8 0 pfstkey 112 13 0 2 1 0 1 1 0 8 0 pfstate 328 13 0 2 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 256 185 0 0 12 0 12 12 0 8 0 art_table 32 186 0 0 2 0 2 2 0 8 0 art_node 16 40 0 6 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 2 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 24 0 14 1 0 1 1 0 8 0 shmpl 112 8 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1613 0 199 46 0 46 46 0 8 0 ffsino 272 1613 0 199 95 0 95 95 0 8 0 nchpl 144 1995 0 365 61 0 61 61 0 8 0 uvmvnodes 72 1664 0 0 31 0 31 31 0 8 0 vnodes 200 1664 0 0 88 0 88 88 0 8 0 namei 1024 5199 0 5199 2 1 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 scxspl 192 4911 0 4911 7 6 1 6 0 8 1 sigapl 432 320 0 305 2 0 2 2 0 8 0 futexpl 56 1343 0 1343 1 0 1 1 0 8 1 knotepl 112 56 0 37 1 0 1 1 0 8 0 kqueuepl 104 21 0 19 1 0 1 1 0 8 0 pipepl 112 242 0 223 2 1 1 1 0 8 0 fdescpl 488 321 0 305 3 0 3 3 0 8 0 filepl 152 1711 0 1611 5 0 5 5 0 8 1 lockfpl 104 29 0 29 2 1 1 1 0 8 1 lockfspl 32 8 0 8 2 1 1 1 0 8 1 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 24 0 13 1 0 1 1 0 8 0 ucredpl 96 154 0 145 1 0 1 1 0 8 0 zombiepl 144 305 0 304 2 1 1 1 0 8 0 processpl 840 337 0 304 4 0 4 4 0 8 0 procpl 600 563 0 520 4 0 4 4 0 8 0 sosppl 128 1 0 1 1 0 1 1 0 8 1 sockpl 384 184 0 164 3 0 3 3 0 8 1 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 122 0 0 15 0 15 15 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 142 0 0 8 0 8 8 0 8 0 bufpl 256 5768 0 1143 290 0 290 290 0 8 0 anonpl 16 41624 0 32972 54 2 52 52 0 125 17 amapchunkpl 152 1256 0 1176 6 1 5 5 0 158 0 amappl16 192 1160 0 706 35 0 35 35 0 8 12 amappl15 184 106 0 100 1 0 1 1 0 8 0 amappl14 176 83 0 77 2 1 1 1 0 8 0 amappl13 168 30 0 26 1 0 1 1 0 8 0 amappl12 160 72 0 69 1 0 1 1 0 8 0 amappl11 152 74 0 58 1 0 1 1 0 8 0 amappl10 144 67 0 64 1 0 1 1 0 8 0 amappl9 136 578 0 575 1 0 1 1 0 8 0 amappl8 128 128 0 115 1 0 1 1 0 8 0 amappl7 120 27 0 25 1 0 1 1 0 8 0 amappl6 112 53 0 48 1 0 1 1 0 8 0 amappl5 104 119 0 104 1 0 1 1 0 8 0 amappl4 96 496 0 465 2 1 1 2 0 8 0 amappl3 88 234 0 224 1 0 1 1 0 8 0 amappl2 80 1709 0 1654 2 0 2 2 0 8 0 amappl1 72 16514 0 16067 25 13 12 20 0 8 2 amappl 72 799 0 766 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 9 0 0 1 0 1 1 0 8 0 uaddrrnd 24 321 0 305 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 321 0 305 1 0 1 1 0 8 0 vmmpekpl 168 6771 0 6750 2 0 2 2 0 8 0 vmmpepl 168 41731 0 40273 89 10 79 79 0 357 15 vmsppl 360 320 0 305 2 0 2 2 0 8 0 pdppl 4096 650 0 610 6 0 6 6 0 8 0 pvpl 32 144187 0 132314 140 6 134 134 0 265 36 pmappl 224 320 0 305 2 1 1 2 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 439 0 4 13 0 13 13 0 8 0