uvm_fault(0xffffffff82238de8, 0xffff80000199b000, 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(0xffffffff82238de8, 0xffff80000199b000, 0, 1) -> e memcpy(fffffd8078859af8,ffff80000199af0d,0,fffffd8078859af8,3188c85512d5146b,ffff800020c28c68) at memcpy+0x15 end trace frame: 0xffff800020c28b70, count: 0 ddb{0}> trace memcpy(fffffd8078859af8,ffff80000199af0d,0,fffffd8078859af8,3188c85512d5146b,ffff800020c28c68) at memcpy+0x15 rtrequest(1,ffff800020c28c68,0,ffff800020c28bb0,0) at rtrequest+0x83c sys/net/route.c:917 rtm_output(ffff80000199af00,ffff800020c28c60,ffff800020c28c68,0,0) at rtm_output+0x760 sys/net/rtsock.c:888 route_output(fffffd806f0f9900,fffffd806f736180,0,0) at route_output+0x79b sys/net/rtsock.c:806 route_usrreq(fffffd806f736180,9,fffffd806f0f9900,0,0,ffff800020b38720) at route_usrreq+0x35d sys/net/rtsock.c:271 sosend(fffffd806f736180,0,ffff800020c28f28,0,0,0) at sosend+0x6eb sys/kern/uipc_socket.c:513 sendit(ffff800020b38720,3,ffff800020c28fe8,0,ffff800020c290b0) at sendit+0x590 sys/kern/uipc_syscalls.c:662 sys_sendto(ffff800020b38720,ffff800020c290c8,ffff800020c290b0) at sys_sendto+0x92 syscall(ffff800020c29160) at syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(ffff800020c29160) at syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574 Xsyscall(6,0,ffffffffffffffd8,0,6,d692297d0d8) at Xsyscall+0x128 end of kernel end trace frame: 0xd6bd833d1f0, count: -10 ddb{0}> show registers rdi 0xffff80000199a0f0 rsi 0xffff80000199affd rbp 0xffff800020c28a60 rbx 0xffff80000199af0d rdx 0x100 rcx 0x2 rax 0xfffffffffffff0f3 r8 0 r9 0x5 r10 0xadbcd14a90c128f5 r11 0xffff80000199a000 r12 0xffff80000199a000 r13 0x100 r14 0 r15 0xfffffd8078859af8 rip 0xffffffff8128fe45 memcpy+0x15 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff800020c289f8 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{0}> show proc PROC (syz-executor.0) pid=492614 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020b392d8,0xffffffff82382238 process=0xffff800020b8c360 user=0xffff800020c24000, vmspace=0xfffffd807effe870 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 74338 395001 12313 0 2 0 syz-executor.0 74338 157745 12313 0 3 0x4000080 fsleep syz-executor.0 *74338 492614 12313 0 7 0x4000000 syz-executor.0 60528 151416 73946 0 3 0x82 nanosleep syz-executor.1 12313 287836 73946 0 2 0x482 syz-executor.0 73946 136165 43056 0 3 0x82 kqread syz-fuzzer 73946 423341 43056 0 3 0x4000082 thrsleep syz-fuzzer 73946 314882 43056 0 3 0x4000082 thrsleep syz-fuzzer 73946 512062 43056 0 3 0x4000082 thrsleep syz-fuzzer 73946 503983 43056 0 3 0x4000082 thrsleep syz-fuzzer 73946 229777 43056 0 3 0x4000082 thrsleep syz-fuzzer 73946 222088 43056 0 3 0x4000082 thrsleep syz-fuzzer 73946 448305 43056 0 3 0x4000082 thrsleep syz-fuzzer 73946 32823 43056 0 3 0x4000082 thrsleep syz-fuzzer 73946 280901 43056 0 3 0x4000082 thrsleep syz-fuzzer 43056 492459 83822 0 3 0x10008a pause ksh 83822 259375 16829 0 3 0x92 select sshd 46228 229605 1 0 3 0x100083 ttyin getty 16829 520376 1 0 3 0x80 select sshd 88913 169142 13066 74 3 0x100092 bpf pflogd 13066 277749 1 0 3 0x80 netio pflogd 6354 309999 95997 73 7 0x100090 syslogd 95997 273847 1 0 3 0x100082 netio syslogd 36670 73497 1 77 3 0x100090 poll dhclient 27027 52624 1 0 3 0x80 poll dhclient 27037 21517 0 0 3 0x14200 pgzero zerothread 83336 234960 0 0 3 0x14200 aiodoned aiodoned 48635 404439 0 0 3 0x14200 syncer update 56549 78244 0 0 3 0x14200 cleaner cleaner 15893 406620 0 0 3 0x14200 reaper reaper 70317 503887 0 0 3 0x14200 pgdaemon pagedaemon 98883 432338 0 0 3 0x14200 bored crynlk 16965 437941 0 0 3 0x14200 bored crypto 57453 349915 0 0 3 0x40014200 acpi0 acpi0 43415 509391 0 0 3 0x40014200 idle1 41076 73371 0 0 3 0x14200 bored softnet 78558 483131 0 0 3 0x14200 bored systqmp 68892 75320 0 0 3 0x14200 bored systq 44641 7550 0 0 3 0x40014200 bored softclock 21941 279173 0 0 3 0x40014200 idle0 6114 278256 0 0 3 0x14200 bored smr 1 323720 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 74338 (syz-executor.0) thread 0xffff800020b38720 (492614) 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/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 9490 6398K 6411K 78643K 10634 0 0 pcb 27 9K 10K 78643K 163 0 0 rtable 103 4K 4K 78643K 241 0 0 ifaddr 49 12K 12K 78643K 79 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1475 0 0 iov 0 0K 12K 78643K 12 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1193 75K 75K 78643K 1280 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 7 0 0 VM map 2 1K 1K 78643K 2 0 0 sem 12 0K 1K 78643K 40 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12628 0 0 file desc 5 13K 19K 78643K 172 0 0 sigio 0 0K 0K 78643K 2 0 0 proc 54 51K 71K 78643K 340 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 34 0 0 ether_multi 1 0K 0K 78643K 2 0 0 mrt 0 0K 0K 78643K 3 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 54 238K 238K 78643K 54 0 0 exec 0 0K 1K 78643K 208 0 0 pfkey data 0 0K 0K 78643K 3 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 82 20K 21K 78643K 1411 0 0 UVM aobj 18 2K 2K 78643K 20 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 11 0 0 NDP 9 0K 0K 78643K 20 0 0 temp 114 2366K 2432K 78643K 3628 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 4 0 0 1 0 1 1 0 8 0 inpcbpl 280 140 0 133 1 0 1 1 0 8 0 plimitpl 152 19 0 11 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtentry 112 44 0 3 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpcb 544 44 0 40 1 0 1 1 0 8 0 rttmr 72 1 0 1 1 1 0 1 0 8 0 nd6 48 4 0 0 1 0 1 1 0 8 0 ppxss 1128 6 0 6 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 14 0 2 1 0 1 1 0 8 0 pfstkey 112 14 0 2 1 0 1 1 0 8 0 pfstate 328 14 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 256 186 0 0 12 0 12 12 0 8 0 art_table 32 187 0 0 2 0 2 2 0 8 0 art_node 16 41 0 7 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 2 1 0 1 1 0 8 1 semapl 112 38 0 28 1 0 1 1 0 8 0 shmpl 112 18 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1718 0 301 46 0 46 46 0 8 0 ffsino 272 1718 0 301 95 0 95 95 0 8 0 nchpl 144 2175 0 541 61 0 61 61 0 8 0 uvmvnodes 72 1771 0 0 33 0 33 33 0 8 0 vnodes 200 1771 0 0 94 0 94 94 0 8 0 namei 1024 5749 0 5749 1 0 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 scsiplug 64 1 0 1 1 0 1 1 0 8 1 scxspl 192 5514 0 5514 7 6 1 6 0 8 1 sigapl 432 371 0 356 2 0 2 2 0 8 0 futexpl 56 2089 0 2088 1 0 1 1 0 8 0 knotepl 112 114 0 95 1 0 1 1 0 8 0 kqueuepl 104 70 0 68 1 0 1 1 0 8 0 pipepl 112 224 0 205 2 1 1 1 0 8 0 fdescpl 488 372 0 356 3 0 3 3 0 8 0 filepl 152 2016 0 1915 5 0 5 5 0 8 1 lockfpl 104 83 0 83 2 1 1 1 0 8 1 lockfspl 32 119 0 119 2 1 1 1 0 8 1 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 26 0 15 1 0 1 1 0 8 0 ucredpl 96 292 0 282 1 0 1 1 0 8 0 zombiepl 144 356 0 355 2 1 1 1 0 8 0 processpl 840 387 0 355 4 0 4 4 0 8 0 procpl 600 763 0 720 4 0 4 4 0 8 0 srpgc 64 1 0 1 1 1 0 1 0 8 0 sockpl 384 262 0 241 3 0 3 3 0 8 0 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 2 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 114 0 0 14 0 14 14 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 133 0 0 8 0 8 8 0 8 0 bufpl 256 5953 0 1145 301 0 301 301 0 8 0 anonpl 16 44621 0 35493 45 2 43 43 0 125 5 amapchunkpl 152 1812 0 1726 10 1 9 9 0 158 5 amappl16 192 1267 0 783 26 0 26 26 0 8 1 amappl15 184 59 0 54 1 0 1 1 0 8 0 amappl14 176 99 0 95 2 1 1 1 0 8 0 amappl13 168 27 0 24 1 0 1 1 0 8 0 amappl12 160 171 0 165 1 0 1 1 0 8 0 amappl11 152 26 0 11 1 0 1 1 0 8 0 amappl10 144 71 0 67 1 0 1 1 0 8 0 amappl9 136 582 0 579 1 0 1 1 0 8 0 amappl8 128 124 0 111 1 0 1 1 0 8 0 amappl7 120 28 0 26 1 0 1 1 0 8 0 amappl6 112 58 0 51 1 0 1 1 0 8 0 amappl5 104 182 0 169 1 0 1 1 0 8 0 amappl4 96 517 0 488 2 1 1 2 0 8 0 amappl3 88 285 0 274 1 0 1 1 0 8 0 amappl2 80 2079 0 2024 2 0 2 2 0 8 0 amappl1 72 17520 0 17073 25 15 10 20 0 8 0 amappl 72 995 0 960 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 19 0 2 1 0 1 1 0 8 0 uaddrrnd 24 372 0 356 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 372 0 356 1 0 1 1 0 8 0 vmmpekpl 168 6970 0 6947 2 0 2 2 0 8 0 vmmpepl 168 46882 0 45390 86 15 71 77 0 357 2 vmsppl 360 371 0 356 2 0 2 2 0 8 0 pdppl 4096 752 0 712 6 0 6 6 0 8 0 pvpl 32 158502 0 146144 120 4 116 116 0 265 14 pmappl 224 371 0 356 1 0 1 1 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 449 0 3 13 0 13 13 0 8 0