login: uvm_fault(0xffffffff8225d700, 0xffff800000965000, 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(0xffffffff8225d700, 0xffff800000965000, 0, 1) -> e memcpy(fffffd807c6af9a8,ffff800000964f0d,0,fffffd807c6af9a8,1e88b1727a47c890,ffff800020c2b788) at memcpy+0x15 end trace frame: 0xffff800020c2b690, count: 0 ddb{1}> trace memcpy(fffffd807c6af9a8,ffff800000964f0d,0,fffffd807c6af9a8,1e88b1727a47c890,ffff800020c2b788) at memcpy+0x15 rtrequest(1,ffff800020c2b788,38,ffff800020c2b6d0,0) at rtrequest+0x83c sys/net/route.c:917 rtm_output(ffff800000964f00,ffff800020c2b780,ffff800020c2b788,38,0) at rtm_output+0x760 sys/net/rtsock.c:888 route_output(fffffd807b2cce00,fffffd806f72e780,0,0) at route_output+0x79b sys/net/rtsock.c:806 route_usrreq(fffffd806f72e780,9,fffffd807b2cce00,0,0,ffff800020b39530) at route_usrreq+0x35d sys/net/rtsock.c:271 sosend(fffffd806f72e780,0,ffff800020c2ba48,0,0,0) at sosend+0x6eb sys/kern/uipc_socket.c:513 sendit(ffff800020b39530,3,ffff800020c2bb08,0,ffff800020c2bbd0) at sendit+0x590 sys/kern/uipc_syscalls.c:662 sys_sendto(ffff800020b39530,ffff800020c2bbe8,ffff800020c2bbd0) at sys_sendto+0x92 syscall(ffff800020c2bc80) at syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(ffff800020c2bc80) at syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574 Xsyscall(6,0,ffffffffffffffd8,0,6,eb177f0f010) at Xsyscall+0x128 end of kernel end trace frame: 0xeb3e4f250d0, count: -10 ddb{1}> show registers rdi 0xffff8000009641f0 rsi 0xffff800000964ffd rbp 0xffff800020c2b580 rbx 0xffff800000964f0d rdx 0x100 rcx 0x2 rax 0xfffffffffffff1f3 r8 0 r9 0x5 r10 0xd47f1fe6db84e783 r11 0xffff800000964100 r12 0xffff800000964100 r13 0x100 r14 0 r15 0xfffffd807c6af9a8 rip 0xffffffff8143f675 memcpy+0x15 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff800020c2b518 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{1}> show proc PROC (syz-executor.0) pid=149281 stat=onproc flags process=0 proc=4000000 pri=72, usrpri=72, nice=20 forw=0xffffffffffffffff, list=0xffff800020b384c8,0xffffffff8234ec80 process=0xffff800020b8c9f0 user=0xffff800020c26000, vmspace=0xfffffd807effd5a0 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 13477 450137 7587 0 2 0 syz-executor.0 *13477 149281 7587 0 7 0x4000000 syz-executor.0 65569 173921 1 0 3 0x100083 ttyin getty 60859 29998 16372 0 3 0x82 nanosleep syz-executor.1 7587 242343 16372 0 3 0x82 nanosleep syz-executor.0 16372 450546 28182 0 3 0x82 thrsleep syz-fuzzer 16372 389683 28182 0 3 0x4000082 nanosleep syz-fuzzer 16372 205619 28182 0 3 0x4000082 thrsleep syz-fuzzer 16372 289615 28182 0 3 0x4000082 thrsleep syz-fuzzer 16372 153807 28182 0 3 0x4000082 nanosleep syz-fuzzer 16372 213678 28182 0 3 0x4000082 thrsleep syz-fuzzer 16372 317187 28182 0 3 0x4000082 kqread syz-fuzzer 16372 226738 28182 0 3 0x4000082 thrsleep syz-fuzzer 16372 148238 28182 0 3 0x4000082 thrsleep syz-fuzzer 16372 193993 28182 0 3 0x4000082 thrsleep syz-fuzzer 28182 133419 81026 0 3 0x10008a pause ksh 81026 322758 87153 0 3 0x92 select sshd 87153 463160 1 0 3 0x80 select sshd 89449 471773 37822 74 3 0x100092 bpf pflogd 37822 263808 1 0 3 0x80 netio pflogd 27288 249268 28737 73 2 0x100090 syslogd 28737 303033 1 0 3 0x100082 netio syslogd 1317 427753 1 77 3 0x100090 poll dhclient 82307 74694 1 0 3 0x80 poll dhclient 43154 390431 0 0 3 0x14200 pgzero zerothread 51672 484706 0 0 3 0x14200 aiodoned aiodoned 70197 146778 0 0 3 0x14200 syncer update 2401 350328 0 0 3 0x14200 cleaner cleaner 42916 517839 0 0 3 0x14200 reaper reaper 48496 471346 0 0 3 0x14200 pgdaemon pagedaemon 60254 167383 0 0 3 0x14200 bored crynlk 93948 27870 0 0 3 0x14200 bored crypto 38089 466436 0 0 3 0x40014200 acpi0 acpi0 47549 370895 0 0 3 0x40014200 idle1 50914 167486 0 0 3 0x14200 bored softnet 51926 490072 0 0 3 0x14200 bored systqmp 17699 25085 0 0 3 0x14200 bored systq 14898 38231 0 0 3 0x40014200 bored softclock 42905 293443 0 0 7 0x40014200 idle0 30420 386384 0 0 3 0x14200 bored smr 1 459625 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 13477 (syz-executor.0) thread 0xffff800020b39530 (149281) exclusive rwlock netlock r = 0 (0xffffffff821d9928) 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 (0xffffffff823780b8) 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 9475 6392K 6399K 78643K 10574 0 0 pcb 26 9K 10K 78643K 80 0 0 rtable 103 4K 4K 78643K 189 0 0 ifaddr 46 11K 11K 78643K 48 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1471 0 0 iov 0 0K 12K 78643K 6 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1200 75K 75K 78643K 1229 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 3 0 0 VM map 2 1K 1K 78643K 2 0 0 sem 8 0K 0K 78643K 10 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12628 0 0 file desc 5 13K 25K 78643K 58 0 0 sigio 0 0K 0K 78643K 2 0 0 proc 52 50K 83K 78643K 330 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 6 0 0 in_multi 33 2K 2K 78643K 36 0 0 ether_multi 1 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 36 159K 159K 78643K 36 0 0 exec 0 0K 1K 78643K 203 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 83 20K 21K 78643K 1040 0 0 UVM aobj 4 2K 2K 78643K 6 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 NDP 8 0K 0K 78643K 12 0 0 temp 104 2365K 2428K 78643K 3275 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 63 0 56 2 0 2 2 0 8 1 plimitpl 152 20 0 12 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 tcpcb 544 24 0 20 1 0 1 1 0 8 0 nd6 48 4 0 0 1 0 1 1 0 8 0 ppxss 1128 1 0 0 1 0 1 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 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 semapl 112 8 0 2 1 0 1 1 0 8 0 shmpl 112 4 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1511 0 95 46 0 46 46 0 8 0 ffsino 272 1511 0 95 95 0 95 95 0 8 0 nchpl 144 1791 0 160 61 0 61 61 0 8 0 uvmvnodes 72 1559 0 0 29 0 29 29 0 8 0 vnodes 200 1559 0 0 83 0 83 83 0 8 0 namei 1024 4608 0 4608 1 0 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 scxspl 192 4561 0 4561 7 1 6 6 0 8 6 sigapl 432 258 0 243 3 0 3 3 0 8 1 futexpl 56 565 0 565 1 0 1 1 0 8 1 knotepl 112 51 0 32 1 0 1 1 0 8 0 kqueuepl 104 8 0 6 1 0 1 1 0 8 0 pipepl 112 178 0 159 2 1 1 1 0 8 0 fdescpl 488 259 0 243 4 1 3 3 0 8 0 filepl 152 1345 0 1244 5 0 5 5 0 8 0 lockfpl 104 23 0 23 2 1 1 1 0 8 1 lockfspl 32 10 0 10 2 1 1 1 0 8 1 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 21 0 10 1 0 1 1 0 8 0 ucredpl 96 107 0 98 1 0 1 1 0 8 0 zombiepl 144 243 0 242 2 1 1 1 0 8 0 processpl 840 274 0 242 4 0 4 4 0 8 0 procpl 600 384 0 342 4 0 4 4 0 8 0 sockpl 384 122 0 102 3 0 3 3 0 8 1 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 120 0 0 14 0 14 14 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 139 0 0 8 0 8 8 0 8 0 bufpl 256 5775 0 1143 290 0 290 290 0 8 0 anonpl 16 32798 0 24191 38 2 36 36 0 125 0 amapchunkpl 152 1032 0 934 5 0 5 5 0 158 0 amappl16 192 675 0 238 23 0 23 23 0 8 1 amappl15 184 58 0 54 1 0 1 1 0 8 0 amappl14 176 22 0 20 2 1 1 1 0 8 0 amappl13 168 28 0 25 1 0 1 1 0 8 0 amappl12 160 38 0 35 1 0 1 1 0 8 0 amappl11 152 23 0 8 1 0 1 1 0 8 0 amappl10 144 97 0 89 1 0 1 1 0 8 0 amappl9 136 587 0 583 1 0 1 1 0 8 0 amappl8 128 128 0 114 1 0 1 1 0 8 0 amappl7 120 28 0 26 1 0 1 1 0 8 0 amappl6 112 61 0 53 1 0 1 1 0 8 0 amappl5 104 131 0 116 1 0 1 1 0 8 0 amappl4 96 494 0 463 2 1 1 2 0 8 0 amappl3 88 118 0 113 1 0 1 1 0 8 0 amappl2 80 1088 0 1033 2 0 2 2 0 8 0 amappl1 72 15360 0 14902 25 13 12 20 0 8 2 amappl 72 626 0 588 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 5 0 2 1 0 1 1 0 8 0 uaddrrnd 24 259 0 243 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 259 0 243 1 0 1 1 0 8 0 vmmpekpl 168 6271 0 6249 2 0 2 2 0 8 0 vmmpepl 168 35174 0 33716 86 9 77 77 0 357 13 vmsppl 360 258 0 243 2 0 2 2 0 8 0 pdppl 4096 526 0 486 7 1 6 6 0 8 0 pvpl 32 129343 0 117508 109 6 103 104 0 265 6 pmappl 224 258 0 243 2 0 2 2 0 8 1 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 439 0 4 13 0 13 13 0 8 0