login: uvm_fault(0xffffffff823168f0, 0xffff800002997000, 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(0xffffffff823168f0, 0xffff800002997000, 0, 1) -> e memcpy(fffffd8078fa41c8,ffff800002996f0d,0,fffffd8078fa41c8,bf1e1e08eac21bd1,ffff800020c38c38) at memcpy+0x15 end trace frame: 0xffff800020c38b40, count: 0 ddb{1}> trace memcpy(fffffd8078fa41c8,ffff800002996f0d,0,fffffd8078fa41c8,bf1e1e08eac21bd1,ffff800020c38c38) at memcpy+0x15 rtrequest(1,ffff800020c38c38,38,ffff800020c38b80,0) at rtrequest+0x83c sys/net/route.c:917 rtm_output(ffff800002996f00,ffff800020c38c30,ffff800020c38c38,38,0) at rtm_output+0x760 sys/net/rtsock.c:888 route_output(fffffd80686f4900,fffffd806f73b000,0,0) at route_output+0x79b sys/net/rtsock.c:806 route_usrreq(fffffd806f73b000,9,fffffd80686f4900,0,0,ffff800020b752d8) at route_usrreq+0x35d sys/net/rtsock.c:271 sosend(fffffd806f73b000,0,ffff800020c38ef8,0,0,0) at sosend+0x6eb sys/kern/uipc_socket.c:513 sendit(ffff800020b752d8,3,ffff800020c38fb8,0,ffff800020c39080) at sendit+0x590 sys/kern/uipc_syscalls.c:662 sys_sendto(ffff800020b752d8,ffff800020c39098,ffff800020c39080) at sys_sendto+0x92 syscall(ffff800020c39130) at syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(ffff800020c39130) at syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574 Xsyscall(6,0,ffffffffffffffd8,0,6,d7dd1be4010) at Xsyscall+0x128 end of kernel end trace frame: 0xd806c546830, count: -10 ddb{1}> show registers rdi 0xffff8000029962f0 rsi 0xffff800002996ffd rbp 0xffff800020c38a30 rbx 0xffff800002996f0d rdx 0x100 rcx 0x2 rax 0xfffffffffffff2f3 r8 0 r9 0x5 r10 0x95006d209df47e48 r11 0xffff800002996200 r12 0xffff800002996200 r13 0x100 r14 0 r15 0xfffffd8078fa41c8 rip 0xffffffff811afcf5 memcpy+0x15 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff800020c389c8 ss 0x10 memcpy+0x15: repe movsq (%rsi),%es:(%rdi) ddb{1}> show proc PROC (syz-executor.0) pid=122865 stat=onproc flags process=0 proc=4000000 pri=72, usrpri=72, nice=20 forw=0xffffffffffffffff, list=0xffff800020b75788,0xffffffff82383fe0 process=0xffff800020b8d3c8 user=0xffff800020c34000, vmspace=0xfffffd807effe870 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 96194 487348 7425 0 7 0 syz-executor.0 *96194 122865 7425 0 7 0x4000000 syz-executor.0 7425 57992 19856 0 3 0x82 nanosleep syz-executor.0 89652 118335 1 0 3 0x100083 ttyin getty 5083 254446 19856 0 3 0x2 biowait syz-executor.1 19856 214963 27795 0 3 0x82 thrsleep syz-fuzzer 19856 4020 27795 0 3 0x4000082 thrsleep syz-fuzzer 19856 379909 27795 0 3 0x4000082 thrsleep syz-fuzzer 19856 44333 27795 0 3 0x4000082 thrsleep syz-fuzzer 19856 362014 27795 0 3 0x4000082 thrsleep syz-fuzzer 19856 210292 27795 0 3 0x4000082 thrsleep syz-fuzzer 19856 100592 27795 0 3 0x4000082 thrsleep syz-fuzzer 19856 311476 27795 0 3 0x4000082 thrsleep syz-fuzzer 19856 16766 27795 0 3 0x4000082 kqread syz-fuzzer 19856 487403 27795 0 3 0x4000082 thrsleep syz-fuzzer 27795 298190 72083 0 3 0x10008a pause ksh 72083 254810 95039 0 3 0x92 select sshd 95039 112768 1 0 3 0x80 select sshd 91708 76001 1210 74 3 0x100092 bpf pflogd 1210 366508 1 0 3 0x80 netio pflogd 41141 228139 87106 73 2 0x100090 syslogd 87106 377637 1 0 3 0x100082 netio syslogd 7285 401591 1 77 3 0x100090 poll dhclient 51392 323454 1 0 3 0x80 poll dhclient 33686 492853 0 0 2 0x14200 zerothread 6027 362595 0 0 3 0x14200 aiodoned aiodoned 77699 213456 0 0 3 0x14200 syncer update 77721 135998 0 0 3 0x14200 cleaner cleaner 98197 167054 0 0 3 0x14200 reaper reaper 26905 29390 0 0 3 0x14200 pgdaemon pagedaemon 49460 18253 0 0 3 0x14200 bored crynlk 3749 375916 0 0 3 0x14200 bored crypto 76853 86422 0 0 3 0x40014200 acpi0 acpi0 7797 30736 0 0 3 0x40014200 idle1 91655 458192 0 0 3 0x14200 bored softnet 56558 285006 0 0 3 0x14200 bored systqmp 85637 455472 0 0 3 0x14200 bored systq 91722 398053 0 0 3 0x40014200 bored softclock 78180 56580 0 0 3 0x40014200 idle0 70799 406187 0 0 3 0x14200 bored smr 1 310410 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 96194 (syz-executor.0) thread 0xffff800020b752d8 (122865) exclusive rwlock netlock r = 0 (0xffffffff8219bcf8) 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 (0xffffffff8236a688) 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 Process 5083 (syz-executor.1) thread 0xffff800020b15520 (254446) exclusive rrwlock inode r = 0 (0xfffffd807e984808) locked @ /syzkaller/managers/multicore/kernel/sys/ufs/ufs/ufs_ihash.c:140 #0 witness_lock+0x594 sys/kern/subr_witness.c:1201 #1 _rw_enter+0x45d sys/kern/kern_rwlock.c:280 #2 _rrw_enter+0x60 sys/kern/kern_rwlock.c:410 #3 ufs_ihashins+0x6d sys/ufs/ufs/ufs_ihash.c:140 #4 ffs_vget+0x143 sys/ufs/ffs/ffs_vfsops.c:1352 #5 ffs_inode_alloc+0x1cf sys/ufs/ffs/ffs_alloc.c:392 #6 ufs_mkdir+0x10f sys/ufs/ufs/ufs_vnops.c:1164 #7 VOP_MKDIR+0x76 sys/kern/vfs_vops.c:449 #8 domkdirat+0x12d sys/kern/vfs_syscalls.c:2881 #9 syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline] #9 syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574 #10 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806d068810) locked @ /syzkaller/managers/multicore/kernel/sys/ufs/ufs/ufs_vnops.c:1547 #0 witness_lock+0x594 sys/kern/subr_witness.c:1201 #1 _rw_enter+0x45d sys/kern/kern_rwlock.c:280 #2 _rrw_enter+0x60 sys/kern/kern_rwlock.c:410 #3 VOP_LOCK+0x57 sys/kern/vfs_vops.c:602 #4 vn_lock+0x6e sys/kern/vfs_vnops.c:549 #5 vfs_lookup+0xf5 sys/kern/vfs_lookup.c:387 #6 namei+0x4b2 sys/kern/vfs_lookup.c:224 #7 domkdirat+0x81 sys/kern/vfs_syscalls.c:2866 #8 syscall+0x5b8 mi_syscall sys/sys/syscall_mi.h:99 [inline] #8 syscall+0x5b8 sys/arch/amd64/amd64/trap.c:574 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9494 6398K 6404K 78643K 10697 0 0 pcb 26 9K 10K 78643K 250 0 0 rtable 103 4K 4K 78643K 405 0 0 ifaddr 54 12K 12K 78643K 114 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1480 0 0 iov 0 0K 12K 78643K 32 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1221 76K 77K 78643K 1459 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 349 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12628 0 0 file desc 5 13K 21K 78643K 638 0 0 sigio 0 0K 0K 78643K 4 0 0 proc 53 50K 71K 78643K 506 0 0 subproc 64 65538K 67586K 78643K 251 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 28 0 0 in_multi 33 2K 2K 78643K 104 0 0 ether_multi 1 0K 0K 78643K 5 0 0 mrt 0 0K 0K 78643K 4 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 48 212K 212K 78643K 48 0 0 exec 0 0K 1K 78643K 234 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 92 21K 26K 78643K 2638 0 0 UVM aobj 22 2K 2K 78643K 22 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 19 0 0 NDP 10 0K 0K 78643K 36 0 0 temp 139 2370K 2442K 78643K 5022 0 0 kqueue 0 0K 0K 78643K 2 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 9 0 5 1 0 1 1 0 8 0 inpcbpl 280 197 0 190 1 0 1 1 0 8 0 plimitpl 152 31 0 23 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtentry 112 87 0 46 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpcb 544 78 0 74 1 0 1 1 0 8 0 nd6 48 14 0 10 1 0 1 1 0 8 0 ppxss 1128 7 0 6 3 2 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 21 0 8 1 0 1 1 0 8 0 pfstkey 112 21 0 8 1 0 1 1 0 8 0 pfstate 328 21 0 8 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 256 396 0 208 12 0 12 12 0 8 0 art_table 32 397 0 208 2 0 2 2 0 8 0 art_node 16 85 0 51 1 0 1 1 0 8 0 sysvmsgpl 40 11 0 3 1 0 1 1 0 8 0 semupl 112 8 0 8 1 1 0 1 0 8 0 semapl 112 347 0 337 1 0 1 1 0 8 0 shmpl 112 20 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 2274 0 834 47 0 47 47 0 8 0 ffsino 272 2274 0 834 97 0 97 97 0 8 0 nchpl 144 3847 0 2196 62 0 62 62 0 8 0 uvmvnodes 72 2449 0 0 45 0 45 45 0 8 0 vnodes 200 2449 0 0 129 0 129 129 0 8 0 namei 1024 9704 0 9703 2 1 1 1 0 8 0 percpumem 16 30 0 0 1 0 1 1 0 8 0 scsiplug 64 5 0 5 3 2 1 1 0 8 1 scxspl 192 8898 0 8897 10 9 1 7 0 8 0 sigapl 432 823 0 808 2 0 2 2 0 8 0 futexpl 56 8074 0 8074 1 0 1 1 0 8 1 knotepl 112 229 0 210 1 0 1 1 0 8 0 kqueuepl 104 78 0 76 1 0 1 1 0 8 0 pipepl 112 962 0 943 2 1 1 1 0 8 0 fdescpl 488 824 0 808 3 0 3 3 0 8 0 filepl 152 4000 0 3899 5 0 5 5 0 8 1 lockfpl 104 112 0 112 2 1 1 1 0 8 1 lockfspl 32 149 0 149 2 1 1 1 0 8 1 sessionpl 112 24 0 13 1 0 1 1 0 8 0 pgrppl 48 33 0 22 1 0 1 1 0 8 0 ucredpl 96 548 0 539 1 0 1 1 0 8 0 zombiepl 144 808 0 808 2 1 1 1 0 8 1 processpl 840 839 0 808 4 0 4 4 0 8 0 procpl 600 1858 0 1817 4 0 4 4 0 8 0 srpgc 64 30 0 30 4 4 0 1 0 8 0 sockpl 384 404 0 384 3 0 3 3 0 8 1 mcl64k 65536 371 0 0 47 1 46 47 0 8 1 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 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 121 0 0 15 0 15 15 0 8 1 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 470 0 0 27 0 27 27 0 8 0 bufpl 256 6687 0 1145 347 0 347 347 0 8 0 anonpl 16 88970 0 80529 65 15 50 50 0 125 13 amapchunkpl 152 4031 0 3941 10 5 5 9 0 158 0 amappl16 192 3829 0 3361 50 18 32 36 0 8 8 amappl15 184 70 0 66 1 0 1 1 0 8 0 amappl14 176 93 0 90 2 1 1 1 0 8 0 amappl13 168 31 0 28 1 0 1 1 0 8 0 amappl12 160 195 0 191 1 0 1 1 0 8 0 amappl11 152 381 0 364 1 0 1 1 0 8 0 amappl10 144 81 0 76 1 0 1 1 0 8 0 amappl9 136 654 0 651 1 0 1 1 0 8 0 amappl8 128 218 0 200 1 0 1 1 0 8 0 amappl7 120 41 0 35 1 0 1 1 0 8 0 amappl6 112 397 0 392 1 0 1 1 0 8 0 amappl5 104 304 0 289 1 0 1 1 0 8 0 amappl4 96 1009 0 976 2 1 1 2 0 8 0 amappl3 88 193 0 187 1 0 1 1 0 8 0 amappl2 80 6012 0 5959 2 0 2 2 0 8 0 amappl1 72 27252 0 26808 26 16 10 20 0 8 0 amappl 72 2136 0 2100 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 21 0 0 1 0 1 1 0 8 0 uaddrrnd 24 824 0 808 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 824 0 808 1 0 1 1 0 8 0 vmmpekpl 168 11316 0 11288 2 0 2 2 0 8 0 vmmpepl 168 94876 0 93403 104 25 79 84 0 357 10 vmsppl 360 823 0 808 2 0 2 2 0 8 0 pdppl 4096 1656 0 1616 6 0 6 6 0 8 0 pvpl 32 264499 0 252786 154 23 131 131 0 265 31 pmappl 224 823 0 808 3 2 1 2 0 8 0 extentpl 40 39 0 25 1 0 1 1 0 8 0 phpool 112 567 0 5 17 0 17 17 0 8 0