uvm_fault(0xffffffff82238de8, 0xffff8000039b9000, 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, 0xffff8000039b9000, 0, 1) -> e memcpy(fffffd807475d238,ffff8000039b8f0d,0,fffffd807475d238,e12f27896672f971,ffff800020c54d58) at memcpy+0x15 end trace frame: 0xffff800020c54c60, count: 0 ddb{1}> trace memcpy(fffffd807475d238,ffff8000039b8f0d,0,fffffd807475d238,e12f27896672f971,ffff800020c54d58) at memcpy+0x15 rtrequest(1,ffff800020c54d58,38,ffff800020c54ca0,0) at rtrequest+0x83c sys/net/route.c:917 rtm_output(ffff8000039b8f00,ffff800020c54d50,ffff800020c54d58,38,0) at rtm_output+0x760 sys/net/rtsock.c:888 route_output(fffffd80741b3900,fffffd8074585a98,0,0) at route_output+0x79b sys/net/rtsock.c:806 route_usrreq(fffffd8074585a98,9,fffffd80741b3900,0,0,ffff800020b75080) at route_usrreq+0x35d sys/net/rtsock.c:271 sosend(fffffd8074585a98,0,ffff800020c55018,0,0,0) at sosend+0x6eb sys/kern/uipc_socket.c:513 sendit(ffff800020b75080,4,ffff800020c550d8,0,ffff800020c551a0) at sendit+0x590 sys/kern/uipc_syscalls.c:662 sys_sendto(ffff800020b75080,ffff800020c551b8,ffff800020c551a0) at sys_sendto+0x92 syscall(ffff800020c55250) at syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(ffff800020c55250) at syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574 Xsyscall(6,0,ffffffffffffffd8,0,6,63dd3d13010) at Xsyscall+0x128 end of kernel end trace frame: 0x64082223b60, count: -10 ddb{1}> show registers rdi 0xffff8000039b8bf0 rsi 0xffff8000039b8ffd rbp 0xffff800020c54b50 rbx 0xffff8000039b8f0d rdx 0x100 rcx 0x2 rax 0xfffffffffffffbf3 r8 0 r9 0x5 r10 0x523d1e4c7b7f59be r11 0xffff8000039b8b00 r12 0xffff8000039b8b00 r13 0x100 r14 0 r15 0xfffffd807475d238 rip 0xffffffff8128fe45 memcpy+0x15 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff800020c54ae8 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{1}> show proc PROC (syz-executor.0) pid=426084 stat=onproc flags process=0 proc=4000000 pri=76, usrpri=76, nice=20 forw=0xffffffffffffffff, list=0xffff800020b75530,0xffff800020b75798 process=0xffff800020b8c6a8 user=0xffff800020c50000, vmspace=0xfffffd807effeca8 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 61629 319643 43899 0 2 0 syz-executor.0 *61629 426084 43899 0 7 0x4000000 syz-executor.0 61629 412433 43899 0 3 0x4000080 fsleep syz-executor.0 43809 69569 1 0 3 0x100083 ttyin getty 43899 82139 90424 0 3 0x82 nanosleep syz-executor.0 8747 142481 90424 0 3 0x82 nanosleep syz-executor.1 40467 175149 0 0 3 0x14200 bored sosplice 90424 126195 87191 0 3 0x82 thrsleep syz-fuzzer 90424 472918 87191 0 3 0x4000082 thrsleep syz-fuzzer 90424 482313 87191 0 3 0x4000082 thrsleep syz-fuzzer 90424 300049 87191 0 3 0x4000082 thrsleep syz-fuzzer 90424 394325 87191 0 3 0x4000082 thrsleep syz-fuzzer 90424 276600 87191 0 3 0x4000082 thrsleep syz-fuzzer 90424 228843 87191 0 3 0x4000082 thrsleep syz-fuzzer 90424 348399 87191 0 3 0x4000082 thrsleep syz-fuzzer 90424 337332 87191 0 3 0x4000082 kqread syz-fuzzer 90424 304065 87191 0 3 0x4000082 thrsleep syz-fuzzer 87191 239373 12711 0 3 0x10008a pause ksh 12711 371747 44538 0 3 0x92 select sshd 44538 257115 1 0 3 0x80 select sshd 95300 442516 2333 74 3 0x100092 bpf pflogd 2333 484038 1 0 3 0x80 netio pflogd 28080 315214 78853 73 2 0x100090 syslogd 78853 496889 1 0 3 0x100082 netio syslogd 86976 93676 1 77 3 0x100090 poll dhclient 80704 312752 1 0 3 0x80 poll dhclient 75682 4251 0 0 2 0x14200 zerothread 63713 8459 0 0 3 0x14200 aiodoned aiodoned 35330 373112 0 0 3 0x14200 syncer update 803 482529 0 0 3 0x14200 cleaner cleaner 91172 260180 0 0 7 0x14200 reaper 68791 160241 0 0 3 0x14200 pgdaemon pagedaemon 2238 351246 0 0 3 0x14200 bored crynlk 75360 469880 0 0 3 0x14200 bored crypto 56360 58298 0 0 3 0x40014200 acpi0 acpi0 62455 516781 0 0 3 0x40014200 idle1 49500 505797 0 0 3 0x14200 bored softnet 53099 223309 0 0 3 0x14200 bored systqmp 78702 293017 0 0 3 0x14200 bored systq 72053 452010 0 0 3 0x40014200 bored softclock 47257 242260 0 0 3 0x40014200 idle0 32025 273501 0 0 3 0x14200 bored smr 1 1648 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 61629 (syz-executor.0) thread 0xffff800020b75080 (426084) 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 9515 6427K 6439K 78643K 11642 0 0 pcb 27 9K 11K 78643K 719 0 0 rtable 103 4K 4K 78643K 758 0 0 ifaddr 55 13K 14K 78643K 259 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1485 0 0 iov 0 0K 24K 78643K 142 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1191 75K 76K 78643K 2397 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 42 0 0 VM map 2 1K 1K 78643K 2 0 0 sem 12 0K 0K 78643K 189 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12628 0 0 file desc 5 13K 21K 78643K 1991 0 0 sigio 0 0K 0K 78643K 14 0 0 proc 53 50K 71K 78643K 658 0 0 subproc 64 65538K 67586K 78643K 408 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 166 0 0 in_multi 33 2K 2K 78643K 187 0 0 ether_multi 1 0K 0K 78643K 8 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 72 318K 318K 78643K 72 0 0 exec 0 0K 1K 78643K 339 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 90 21K 30K 78643K 7189 0 0 UVM aobj 95 3K 3K 78643K 100 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 74 0 0 NDP 11 0K 0K 78643K 83 0 0 temp 164 2375K 2443K 78643K 8694 0 0 kqueue 0 0K 0K 78643K 27 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 14 0 10 1 0 1 1 0 8 0 inpcbpl 280 995 0 988 1 0 1 1 0 8 0 plimitpl 152 75 0 67 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtentry 112 133 0 92 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpcb 544 523 0 519 1 0 1 1 0 8 0 nd6 48 24 0 20 1 0 1 1 0 8 0 ppxss 1128 34 0 34 10 10 0 1 0 8 0 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 33 0 27 1 0 1 1 0 8 0 pfstkey 112 33 0 27 1 0 1 1 0 8 0 pfstate 328 33 0 27 2 1 1 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 256 615 0 424 12 0 12 12 0 8 0 art_table 32 616 0 424 2 0 2 2 0 8 0 art_node 16 130 0 96 1 0 1 1 0 8 0 sysvmsgpl 40 17 0 9 1 0 1 1 0 8 0 semapl 112 187 0 177 1 0 1 1 0 8 0 shmpl 112 98 0 5 3 0 3 3 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 4716 0 3263 48 1 47 47 0 8 0 ffsino 272 4716 0 3263 98 0 98 98 0 8 0 nchpl 144 7653 0 6000 63 1 62 62 0 8 0 uvmvnodes 72 5286 0 0 97 0 97 97 0 8 0 vnodes 200 5286 0 0 279 0 279 279 0 8 0 namei 1024 21533 0 21533 2 1 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 scsiplug 64 3 0 3 3 3 0 1 0 8 0 scxspl 192 21189 0 21189 13 12 1 6 0 8 1 sigapl 432 2162 0 2147 2 0 2 2 0 8 0 futexpl 56 19023 0 19022 1 0 1 1 0 8 0 knotepl 112 484 0 465 2 1 1 2 0 8 0 kqueuepl 104 335 0 333 1 0 1 1 0 8 0 pipepl 112 1038 0 1019 3 2 1 2 0 8 0 fdescpl 488 2163 0 2147 3 0 3 3 0 8 0 filepl 152 10823 0 10722 8 3 5 6 0 8 1 lockfpl 104 443 0 443 7 6 1 1 0 8 1 lockfspl 32 617 0 617 6 5 1 1 0 8 1 sessionpl 112 30 0 19 1 0 1 1 0 8 0 pgrppl 48 48 0 37 1 0 1 1 0 8 0 ucredpl 96 1721 0 1712 1 0 1 1 0 8 0 zombiepl 144 2147 0 2146 2 1 1 1 0 8 0 processpl 840 2179 0 2146 4 0 4 4 0 8 0 procpl 600 6255 0 6211 6 2 4 5 0 8 0 srpgc 64 60 0 60 8 8 0 1 0 8 0 sosppl 128 12 0 12 5 5 0 1 0 8 0 sockpl 384 1604 0 1583 5 2 3 4 0 8 0 mcl64k 65536 231 0 0 29 3 26 29 0 8 1 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 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 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 15 0 0 2 0 2 2 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 124 0 0 15 0 15 15 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 403 0 0 18 0 18 18 0 8 0 bufpl 256 9004 0 1980 440 0 440 440 0 8 0 anonpl 16 216665 0 207994 106 56 50 53 0 125 11 amapchunkpl 152 13012 0 12916 40 35 5 11 0 158 0 amappl16 192 10139 0 9669 83 51 32 36 0 8 8 amappl15 184 130 0 126 1 0 1 1 0 8 0 amappl14 176 736 0 733 2 1 1 1 0 8 0 amappl13 168 115 0 110 1 0 1 1 0 8 0 amappl12 160 386 0 384 1 0 1 1 0 8 0 amappl11 152 91 0 76 1 0 1 1 0 8 0 amappl10 144 270 0 267 1 0 1 1 0 8 0 amappl9 136 1495 0 1488 1 0 1 1 0 8 0 amappl8 128 1070 0 1049 1 0 1 1 0 8 0 amappl7 120 231 0 224 1 0 1 1 0 8 0 amappl6 112 132 0 124 1 0 1 1 0 8 0 amappl5 104 194 0 180 1 0 1 1 0 8 0 amappl4 96 2153 0 2118 2 1 1 2 0 8 0 amappl3 88 1162 0 1156 1 0 1 1 0 8 0 amappl2 80 17791 0 17728 2 0 2 2 0 8 0 amappl1 72 54887 0 54417 25 15 10 20 0 8 0 amappl 72 6586 0 6547 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 99 0 5 2 0 2 2 0 8 0 uaddrrnd 24 2163 0 2147 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2163 0 2147 1 0 1 1 0 8 0 vmmpekpl 168 21141 0 21116 2 0 2 2 0 8 0 vmmpepl 168 233738 0 232158 142 66 76 83 0 357 7 vmsppl 360 2162 0 2146 2 0 2 2 0 8 0 pdppl 4096 4334 0 4292 6 0 6 6 0 8 0 pvpl 32 603982 0 592092 239 108 131 136 0 265 29 pmappl 224 2162 0 2146 4 3 1 2 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 633 0 7 18 0 18 18 0 8 0