uvm_fault(0xffffffff82259780, 0xffff800003bac000, 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(0xffffffff82259780, 0xffff800003bac000, 0, 1) -> e memcpy(fffffd807ccc9318,ffff800003babf0d,0,fffffd807ccc9318,65e85ab45ed3a2a2,ffff800020c59668) at memcpy+0x15 end trace frame: 0xffff800020c59570, count: 0 ddb{1}> trace memcpy(fffffd807ccc9318,ffff800003babf0d,0,fffffd807ccc9318,65e85ab45ed3a2a2,ffff800020c59668) at memcpy+0x15 rtrequest(1,ffff800020c59668,38,ffff800020c595b0,0) at rtrequest+0x83c sys/net/route.c:917 rtm_output(ffff800003babf00,ffff800020c59660,ffff800020c59668,38,0) at rtm_output+0x760 sys/net/rtsock.c:888 route_output(fffffd806f246000,fffffd806f72c600,0,0) at route_output+0x79b sys/net/rtsock.c:806 route_usrreq(fffffd806f72c600,9,fffffd806f246000,0,0,ffff800020b75788) at route_usrreq+0x35d sys/net/rtsock.c:271 sosend(fffffd806f72c600,0,ffff800020c59928,0,0,0) at sosend+0x6eb sys/kern/uipc_socket.c:513 sendit(ffff800020b75788,3,ffff800020c599e8,0,ffff800020c59ab0) at sendit+0x590 sys/kern/uipc_syscalls.c:662 sys_sendto(ffff800020b75788,ffff800020c59ac8,ffff800020c59ab0) at sys_sendto+0x92 syscall(ffff800020c59b60) at syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(ffff800020c59b60) at syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574 Xsyscall(6,0,ffffffffffffffd8,0,6,33d955f6010) at Xsyscall+0x128 end of kernel end trace frame: 0x34083cd0ff0, count: -10 ddb{1}> show registers rdi 0xffff8000039aa5f0 rsi 0xffff800003babffd rbp 0xffff800020c59460 rbx 0xffff800003babf0d rdx 0x100 rcx 0x2 rax 0xffffffffffdfe5f3 r8 0 r9 0x5 r10 0xc5d45327ca6e5aac r11 0xffff8000039aa500 r12 0xffff8000039aa500 r13 0x100 r14 0 r15 0xfffffd807ccc9318 rip 0xffffffff810902a5 memcpy+0x15 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff800020c593f8 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{1}> show proc PROC (syz-executor.0) pid=195875 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020b74720,0xffff800020b74be0 process=0xffff800020b8da58 user=0xffff800020c54000, vmspace=0xfffffd807effe438 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 96708 50860 28187 0 2 0 syz-executor.1 96708 172040 28187 0 2 0x4000000 syz-executor.1 81318 175461 68797 0 2 0 syz-executor.0 *81318 195875 68797 0 7 0x4000000 syz-executor.0 68797 85970 1434 0 3 0x82 nanosleep syz-executor.0 28187 125946 1434 0 3 0x82 nanosleep syz-executor.1 18090 313806 1 0 3 0x100083 ttyin getty 3348 505369 0 0 3 0x14200 bored sosplice 1434 234556 89823 0 3 0x82 thrsleep syz-fuzzer 1434 136950 89823 0 3 0x4000082 thrsleep syz-fuzzer 1434 14634 89823 0 3 0x4000082 thrsleep syz-fuzzer 1434 442609 89823 0 3 0x4000082 thrsleep syz-fuzzer 1434 514412 89823 0 3 0x4000082 thrsleep syz-fuzzer 1434 253961 89823 0 3 0x4000082 kqread syz-fuzzer 1434 81178 89823 0 3 0x4000082 thrsleep syz-fuzzer 1434 287442 89823 0 3 0x4000082 thrsleep syz-fuzzer 1434 496588 89823 0 3 0x4000082 thrsleep syz-fuzzer 1434 240891 89823 0 3 0x4000082 thrsleep syz-fuzzer 89823 501801 43791 0 3 0x10008a pause ksh 43791 56103 2555 0 3 0x92 select sshd 2555 412713 1 0 3 0x80 select sshd 70067 499648 49136 74 3 0x100092 bpf pflogd 49136 491154 1 0 3 0x80 netio pflogd 89107 373216 49628 73 7 0x100090 syslogd 49628 308525 1 0 3 0x100082 netio syslogd 55186 244383 1 77 3 0x100090 poll dhclient 47316 351918 1 0 3 0x80 poll dhclient 60919 482244 0 0 2 0x14200 zerothread 27490 492284 0 0 3 0x14200 aiodoned aiodoned 67849 121229 0 0 3 0x14200 syncer update 71789 408179 0 0 3 0x14200 cleaner cleaner 82417 138079 0 0 3 0x14200 reaper reaper 22079 261413 0 0 3 0x14200 pgdaemon pagedaemon 46663 87114 0 0 3 0x14200 bored crynlk 62658 157235 0 0 3 0x14200 bored crypto 31515 376654 0 0 3 0x40014200 acpi0 acpi0 55387 272165 0 0 3 0x40014200 idle1 5459 265831 0 0 3 0x14200 bored softnet 71397 45867 0 0 3 0x14200 bored systqmp 55717 417509 0 0 3 0x14200 bored systq 80925 463494 0 0 3 0x40014200 bored softclock 84486 212545 0 0 3 0x40014200 idle0 20545 133053 0 0 3 0x14200 bored smr 1 362571 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 81318 (syz-executor.0) thread 0xffff800020b75788 (195875) exclusive rwlock netlock r = 0 (0xffffffff821c45d8) 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 (0xffffffff823681d0) 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 9531 6422K 6428K 78643K 10888 0 0 pcb 26 9K 11K 78643K 513 0 0 rtable 103 4K 4K 78643K 563 0 0 ifaddr 66 14K 14K 78643K 198 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1481 0 0 iov 0 0K 24K 78643K 85 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1192 75K 75K 78643K 1608 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 9 0 0 VM map 2 1K 1K 78643K 2 0 0 sem 12 0K 0K 78643K 111 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12628 0 0 file desc 6 17K 21K 78643K 880 0 0 sigio 0 0K 0K 78643K 25 0 0 proc 54 51K 71K 78643K 533 0 0 subproc 64 65538K 67586K 78643K 272 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 81 0 0 in_multi 33 2K 2K 78643K 122 0 0 ether_multi 1 0K 0K 78643K 5 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 60 265K 265K 78643K 60 0 0 exec 0 0K 1K 78643K 286 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 85 20K 25K 78643K 3592 0 0 UVM aobj 45 3K 3K 78643K 48 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 1K 78643K 51 0 0 NDP 14 0K 0K 78643K 61 0 0 temp 187 2380K 2446K 78643K 5832 0 0 kqueue 0 0K 0K 78643K 5 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 10 0 6 1 0 1 1 0 8 0 inpcbpl 280 413 0 406 1 0 1 1 0 8 0 plimitpl 152 50 0 42 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtentry 112 98 0 57 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 18 0 18 1 1 0 1 0 8 0 tcpcb 544 151 0 147 1 0 1 1 0 8 0 nd6 48 16 0 12 1 0 1 1 0 8 0 ppxss 1128 20 0 19 6 5 1 1 0 8 0 pffrag 232 1 0 1 1 1 0 1 0 482 0 pffrnode 88 1 0 1 1 1 0 1 0 8 0 pffrent 40 2 0 2 1 1 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 26 0 24 1 0 1 1 0 8 0 pfstkey 112 26 0 24 1 0 1 1 0 8 0 pfstate 328 26 0 24 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 256 441 0 249 13 0 13 13 0 8 0 art_table 32 442 0 249 2 0 2 2 0 8 0 art_node 16 94 0 60 1 0 1 1 0 8 0 sysvmsgpl 40 31 0 21 2 1 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 107 0 97 1 0 1 1 0 8 0 shmpl 112 46 0 3 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 2799 0 1362 47 0 47 47 0 8 0 ffsino 272 2799 0 1362 96 0 96 96 0 8 0 nchpl 144 4221 0 2564 62 0 62 62 0 8 0 uvmvnodes 72 2989 0 0 55 0 55 55 0 8 0 vnodes 200 2989 0 0 158 0 158 158 0 8 0 namei 1024 12044 0 12044 5 4 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 scxspl 192 12467 0 12467 18 17 1 6 0 8 1 sigapl 432 1062 0 1046 2 0 2 2 0 8 0 futexpl 56 8674 0 8674 4 3 1 1 0 8 1 knotepl 112 284 0 265 1 0 1 1 0 8 0 kqueuepl 104 229 0 227 1 0 1 1 0 8 0 pipepl 112 758 0 739 5 4 1 2 0 8 0 fdescpl 488 1063 0 1046 3 0 3 3 0 8 0 filepl 152 5726 0 5625 10 5 5 7 0 8 1 lockfpl 104 297 0 297 5 4 1 1 0 8 1 lockfspl 32 393 0 393 5 4 1 1 0 8 1 sessionpl 112 25 0 14 1 0 1 1 0 8 0 pgrppl 48 30 0 19 1 0 1 1 0 8 0 ucredpl 96 966 0 957 1 0 1 1 0 8 0 zombiepl 144 1046 0 1046 4 3 1 1 0 8 1 processpl 840 1079 0 1046 4 0 4 4 0 8 0 procpl 600 2787 0 2743 4 0 4 4 0 8 0 srpgc 64 36 0 36 4 4 0 1 0 8 0 sosppl 128 6 0 6 2 2 0 1 0 8 0 sockpl 384 843 0 823 9 6 3 4 0 8 1 mcl64k 65536 7 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 14 0 0 2 0 2 2 0 8 0 mcl2k2 2112 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 132 0 0 15 0 15 15 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 221 0 0 9 0 9 9 0 8 0 bufpl 256 7522 0 1156 398 0 398 398 0 8 0 anonpl 16 128572 0 119684 79 30 49 52 0 125 9 amapchunkpl 152 5587 0 5499 8 3 5 6 0 158 0 amappl16 192 5833 0 5363 75 43 32 36 0 8 7 amappl15 184 247 0 241 1 0 1 1 0 8 0 amappl14 176 54 0 49 2 1 1 1 0 8 0 amappl13 168 425 0 422 1 0 1 1 0 8 0 amappl12 160 21 0 19 1 0 1 1 0 8 0 amappl11 152 156 0 141 1 0 1 1 0 8 0 amappl10 144 143 0 138 1 0 1 1 0 8 0 amappl9 136 908 0 903 1 0 1 1 0 8 0 amappl8 128 482 0 465 1 0 1 1 0 8 0 amappl7 120 120 0 113 1 0 1 1 0 8 0 amappl6 112 62 0 54 1 0 1 1 0 8 0 amappl5 104 142 0 128 1 0 1 1 0 8 0 amappl4 96 1393 0 1362 2 1 1 2 0 8 0 amappl3 88 140 0 134 1 0 1 1 0 8 0 amappl2 80 8391 0 8326 2 0 2 2 0 8 0 amappl1 72 32493 0 32034 26 16 10 20 0 8 0 amappl 72 3077 0 3041 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 47 0 3 1 0 1 1 0 8 0 uaddrrnd 24 1063 0 1046 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1063 0 1046 1 0 1 1 0 8 0 vmmpekpl 168 12608 0 12582 2 0 2 2 0 8 0 vmmpepl 168 122415 0 120850 123 49 74 81 0 357 5 vmsppl 360 1062 0 1046 2 0 2 2 0 8 0 pdppl 4096 2134 0 2092 6 0 6 6 0 8 0 pvpl 32 368172 0 355897 180 50 130 135 0 265 23 pmappl 224 1062 0 1046 2 1 1 2 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 556 0 7 16 0 16 16 0 8 0