kern.securelevel: 0 -> 1 creating runtime link editor directory cache. preserving editor files. starting network daemons: sshd. starting local daemons:. Wed Dec 2 16:07:21 PST 2020 OpenBSD/amd64 (ci-openbsd-multicore-test-2.c.syzkaller.internal) (tty00) Warning: Permanently added '10.128.10.61' (ECDSA) to the list of known hosts. 2020/12/02 16:07:35 fuzzer started 2020/12/02 16:07:38 connecting to host at 10.128.15.235:28177 2020/12/02 16:07:38 checking machine... 2020/12/02 16:07:38 checking revisions... 2020/12/02 16:07:38 testing simple program... login: uvm_fault(0xfffffd807eff8450, 0x8bbf95b0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at spllower+0x34: movq 0x5c0(%r12,%rax,8),%rbx ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xfffffd807eff8450, 0x8bbf95b0, 0, 1) -> e spllower(ffff8000212a8000) at spllower+0x34 end trace frame: 0xffff8000222acf90, count: 0 ddb{0}> trace spllower(ffff8000212a8000) at spllower+0x34 single_thread_check_locked(ffff80002123d498,0) at single_thread_check_locked+0x196 userret(ffff80002123d498) at userret+0x335 syscall(ffff8000222ad0c0) at syscall+0x55c Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x63f38ca02d0, count: -5 ddb{0}> show registers rdi 0xffff8000212a8000 rsi 0x9fe rbp 0xffff8000222acf30 rbx 0x1000 __ALIGN_SIZE rdx 0xffff8000212a8000 rcx 0x9fd rax 0x212a8000 r8 0xffffffff82232a30 setrunnable+0xa0 r9 0x5 r10 0x9c655bbf9a6c722d r11 0xd0ac6dc39af66a6c r12 0xffffffff826b8ff0 cpu_info_full_primary+0x1ff0 r13 0x1 r14 0x212a8000 r15 0xffff80002123d498 rip 0xffffffff8211a034 spllower+0x34 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000222acee0 ss 0x10 spllower+0x34: movq 0x5c0(%r12,%rax,8),%rbx ddb{0}> show proc PROC (syz-executor.0) pid=256455 stat=onproc flags process=1000 proc=4080000 pri=32, usrpri=78, nice=20 forw=0xffffffffffffffff, list=0xffff80002123dc48,0xffffffff828b7e20 process=0xffff800021234010 user=0xffff8000222a8000, vmspace=0xfffffd807eff8450 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 2631 524098 50237 0 7 0x3000 syz-executor.0 * 2631 256455 50237 0 7 0x4081000 syz-executor.0 50237 283898 38670 0 3 0x82 nanosleep syz-executor.0 38670 267830 83968 0 3 0x82 thrsleep syz-fuzzer 38670 114359 83968 0 3 0x4000082 nanosleep syz-fuzzer 38670 452460 83968 0 3 0x4000082 thrsleep syz-fuzzer 38670 232833 83968 0 3 0x4000082 thrsleep syz-fuzzer 38670 459622 83968 0 3 0x4000082 kqread syz-fuzzer 38670 285382 83968 0 3 0x4000082 thrsleep syz-fuzzer 38670 211035 83968 0 3 0x4000082 nanosleep syz-fuzzer 83968 399912 55618 0 3 0x10008a pause ksh 55618 245794 67686 0 3 0x92 select sshd 22519 254837 1 0 3 0x100083 ttyin getty 67686 4108 1 0 3 0x80 select sshd 73607 404020 779 74 3 0x100092 bpf pflogd 779 514802 1 0 3 0x80 netio pflogd 8537 35067 93197 73 3 0x100090 kqread syslogd 93197 244711 1 0 3 0x100082 netio syslogd 94105 159154 1 77 3 0x100090 poll dhclient 60114 91558 1 0 3 0x80 poll dhclient 26460 77910 0 0 3 0x14200 bored smr 85625 382055 0 0 3 0x14200 pgzero zerothread 28867 411258 0 0 3 0x14200 aiodoned aiodoned 68203 165868 0 0 3 0x14200 syncer update 16169 223776 0 0 3 0x14200 cleaner cleaner 91216 428372 0 0 3 0x14200 reaper reaper 52031 274398 0 0 3 0x14200 pgdaemon pagedaemon 3427 231534 0 0 3 0x14200 bored crynlk 13914 419919 0 0 3 0x14200 bored crypto 47549 212808 0 0 3 0x14200 bored viomb 23908 205542 0 0 3 0x40014200 acpi0 acpi0 27495 167324 0 0 3 0x40014200 idle1 11055 198044 0 0 3 0x14200 bored softnet 7851 62938 0 0 3 0x14200 bored systqmp 16045 290721 0 0 3 0x14200 bored systq 69082 340596 0 0 3 0x40014200 bored softclock 7398 523796 0 0 3 0x40014200 idle0 1 477265 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 2631 (syz-executor.0) thread 0xffff80002123d498 (256455) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff828b8038) #0 witness_lock+0x4b0 #1 kpageflttrap+0x23f #2 kerntrap+0xef #3 alltraps_kern_meltdown+0x7b #4 spllower+0x34 #5 single_thread_check_locked+0x196 #6 userret+0x335 #7 syscall+0x55c #8 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9479 6413K 6413K 78643K 10569 0 pcb 13 8K 8K 78643K 13 0 rtable 83 2K 2K 78643K 163 0 ifaddr 37 9K 9K 78643K 38 0 counters 41 33K 33K 78643K 41 0 ioctlops 0 0K 4K 78643K 1468 0 mount 1 1K 1K 78643K 1 0 vnodes 1200 75K 75K 78643K 1205 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1825 197K 290K 78643K 13109 0 file desc 3 8K 12K 78643K 18 0 proc 59 63K 83K 78643K 407 0 subproc 16 1K 1K 78643K 17 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 22 1K 1K 78643K 22 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 19 95K 95K 78643K 19 0 exec 0 0K 2K 78643K 336 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 57 11K 11K 78643K 685 0 UVM aobj 3 2K 2K 78643K 3 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 7 0K 0K 78643K 7 0 temp 45 3954K 4017K 78643K 1913 0 kqueue 3 4K 4K 78643K 3 0 SYN cache 2 16K 16K 78643K 2 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 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 120 17 0 15 1 0 1 1 0 8 0 rtentry 112 34 0 1 1 0 1 1 0 8 0 unpcb 120 25 0 15 1 0 1 1 0 8 0 syncache 296 4 0 4 1 0 1 1 0 8 1 tcpcb 736 10 0 4 1 0 1 1 0 8 0 inpcb 296 35 0 29 1 0 1 1 0 8 0 nd6 48 3 0 0 1 0 1 1 0 8 0 kcovpl 48 1 0 0 1 0 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 11 0 0 1 0 1 1 0 8 0 pfstkey 112 11 0 0 1 0 1 1 0 8 0 pfstate 328 11 0 0 1 0 1 1 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 256 145 0 0 10 0 10 10 0 8 0 art_table 32 146 0 0 2 0 2 2 0 8 0 art_node 16 33 0 3 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1421 0 22 88 0 88 88 0 8 0 ffsino 272 1421 0 22 94 0 94 94 0 8 0 nchpl 144 1636 0 38 60 0 60 60 0 8 0 uvmvnodes 72 1448 0 0 27 0 27 27 0 8 0 vnodes 208 1448 0 0 77 0 77 77 0 8 0 namei 1024 4118 0 4118 1 0 1 1 0 8 1 percpumem 16 31 0 0 1 0 1 1 0 8 0 scxspl 216 4805 0 4805 2 1 1 2 0 8 1 plimitpl 152 14 0 7 1 0 1 1 0 8 0 sigapl 424 239 0 208 4 0 4 4 0 8 0 futexpl 56 2 0 2 1 0 1 1 0 8 1 knotepl 112 62 0 50 1 0 1 1 0 8 0 kqueuepl 152 2 0 0 1 0 1 1 0 8 0 pipepl 304 76 0 68 1 0 1 1 0 8 0 fdescpl 496 223 0 208 3 0 3 3 0 8 0 filepl 152 1055 0 979 4 0 4 4 0 8 1 lockfpl 104 5 0 4 1 0 1 1 0 8 0 lockfspl 48 3 0 2 1 0 1 1 0 8 0 sessionpl 144 17 0 7 1 0 1 1 0 8 0 pgrppl 48 17 0 7 1 0 1 1 0 8 0 ucredpl 96 53 0 44 1 0 1 1 0 8 0 zombiepl 144 208 0 208 1 0 1 1 0 8 1 processpl 1056 239 0 208 3 0 3 3 0 8 0 procpl 656 246 0 208 4 0 4 4 0 8 0 sockpl 400 77 0 59 3 0 3 3 0 8 1 mcl4k 4096 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 72 0 0 9 0 9 9 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 95 0 0 6 0 6 6 0 8 0 bufpl 280 3529 0 181 240 0 240 240 0 8 0 anonpl 16 24315 0 22090 16 1 15 15 0 124 5 amapchunkpl 152 835 0 760 6 1 5 5 0 158 1 amappl16 192 165 0 109 4 0 4 4 0 8 1 amappl15 184 2 0 0 1 0 1 1 0 8 0 amappl14 176 23 0 18 1 0 1 1 0 8 0 amappl13 168 30 0 26 1 0 1 1 0 8 0 amappl12 160 13 0 10 1 0 1 1 0 8 0 amappl11 152 50 0 34 1 0 1 1 0 8 0 amappl10 144 8 0 6 1 0 1 1 0 8 0 amappl9 136 387 0 386 1 0 1 1 0 8 0 amappl8 128 91 0 74 1 0 1 1 0 8 0 amappl7 120 229 0 223 1 0 1 1 0 8 0 amappl6 112 62 0 53 1 0 1 1 0 8 0 amappl5 104 363 0 345 1 0 1 1 0 8 0 amappl4 96 278 0 254 1 0 1 1 0 8 0 amappl3 88 116 0 105 1 0 1 1 0 8 0 amappl2 80 885 0 821 3 0 3 3 0 8 1 amappl1 72 15092 0 14631 25 6 19 19 0 8 9 amappl 80 464 0 434 1 0 1 1 0 84 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 64 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 223 0 208 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 223 0 208 1 0 1 1 0 8 0 vmmpekpl 168 5996 0 5973 2 0 2 2 0 8 0 vmmpepl 168 33556 0 32429 85 8 77 77 0 357 27 vmsppl 368 222 0 208 2 0 2 2 0 8 0 pdppl 4096 453 0 416 53 12 41 41 0 8 4 pvpl 32 117510 0 112350 119 0 119 119 0 265 77 pmappl 232 222 0 208 1 0 1 1 0 8 0 extentpl 40 58 0 40 1 0 1 1 0 8 0 phpool 112 277 0 15 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace spllower(ffff8000212a8000) at spllower+0x34 single_thread_check_locked(ffff80002123d498,0) at single_thread_check_locked+0x196 userret(ffff80002123d498) at userret+0x335 syscall(ffff8000222ad0c0) at syscall+0x55c Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x63f38ca02d0, count: -5 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020d68ff0) at x86_ipi_db+0x1a x86_ipi_handler() at x86_ipi_handler+0xb7 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff828b7e30) at __mp_lock+0x122 __mp_acquire_count(ffffffff828b7e30,1) at __mp_acquire_count+0x4c mi_switch() at mi_switch+0x390 sleep_finish(ffff80002129f890,1) at sleep_finish+0x111 single_thread_set(ffff80002123dc48,3,0) at single_thread_set+0x3f4 exit1(ffff80002123dc48,0,0,1) at exit1+0x98 sys_exit(ffff80002123dc48,ffff80002129f9d0,ffff80002129fa20) at sys_exit+0x16 syscall(ffff80002129faa0) at syscall+0x4a1 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd8580, count: -12