kern.securelevel: 0 -> 1 creating runtime link editor directory cache. preserving editor files. starting network daemons: sshd. starting local daemons:. Wed Dec 2 15:39:51 PST 2020 OpenBSD/amd64 (ci-openbsd-multicore-test-1.c.syzkaller.internal) (tty00) Warning: Permanently added '10.128.10.46' (ECDSA) to the list of known hosts. 2020/12/02 15:40:01 fuzzer started 2020/12/02 15:40:06 connecting to host at 10.128.15.235:41831 2020/12/02 15:40:06 checking machine... 2020/12/02 15:40:06 checking revisions... 2020/12/02 15:40:06 testing simple program... login: uvm_fault(0xffffffff827e2bc8, 0xffff80012a2a95b0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at spllower+0x34: movq 0x5c0(%r12,%rax,8),%rbx ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic kernel page fault uvm_fault(0xffffffff827e2bc8, 0xffff80012a2a95b0, 0, 1) -> e spllower(ffff8000212a8000) at spllower+0x34 end trace frame: 0xffff8000222ad550, count: 0 ddb{1}> trace spllower(ffff8000212a8000) at spllower+0x34 single_thread_check_locked(ffff80002123d208,0) at single_thread_check_locked+0x196 userret(ffff80002123d208) at userret+0x335 syscall(ffff8000222ad680) at syscall+0x55c Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2aa28ad8180, count: -5 ddb{1}> show registers rdi 0xffff8000212a8000 rsi 0x9a4 rbp 0xffff8000222ad4f0 rbx 0x1000 __ALIGN_SIZE rdx 0xffff8000212a8000 rcx 0x9a3 rax 0x212a8000 r8 0xffffffff819ec850 setrunnable+0xa0 r9 0x5 r10 0xe24482ba2cd3bbc0 r11 0xac2a709bcdd00652 r12 0xffff800020d68ff0 r13 0x1 r14 0x212a8000 r15 0xffff80002123d208 rip 0xffffffff814e22e4 spllower+0x34 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000222ad4a0 ss 0x10 spllower+0x34: movq 0x5c0(%r12,%rax,8),%rbx ddb{1}> show proc PROC (syz-executor.0) pid=275622 stat=onproc flags process=1000 proc=4080000 pri=32, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff80002123d728,0xffffffff828e7f70 process=0xffff800021235cf0 user=0xffff8000222a8000, vmspace=0xfffffd807eff9000 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 87527 475278 41630 0 7 0x3000 syz-executor.0 *87527 275622 41630 0 7 0x4081000 syz-executor.0 41630 357935 62642 0 3 0x82 nanosleep syz-executor.0 62642 342795 99507 0 3 0x82 thrsleep syz-fuzzer 62642 205269 99507 0 3 0x4000082 nanosleep syz-fuzzer 62642 241589 99507 0 3 0x4000082 kqread syz-fuzzer 62642 40264 99507 0 3 0x4000082 thrsleep syz-fuzzer 62642 462550 99507 0 3 0x4000082 thrsleep syz-fuzzer 62642 316503 99507 0 3 0x4000082 nanosleep syz-fuzzer 62642 273728 99507 0 3 0x4000082 thrsleep syz-fuzzer 99507 482723 58162 0 3 0x10008a pause ksh 58162 362569 45638 0 3 0x92 select sshd 58738 240125 1 0 3 0x100083 ttyin getty 45638 38313 1 0 3 0x80 select sshd 70701 112266 4673 74 3 0x100092 bpf pflogd 4673 259436 1 0 3 0x80 netio pflogd 69158 59677 98011 73 3 0x100090 kqread syslogd 98011 484508 1 0 3 0x100082 netio syslogd 50729 84892 1 77 3 0x100090 poll dhclient 23037 372789 1 0 3 0x80 poll dhclient 95817 134322 0 0 3 0x14200 bored smr 15748 196195 0 0 3 0x14200 pgzero zerothread 58774 74887 0 0 3 0x14200 aiodoned aiodoned 93277 126534 0 0 3 0x14200 syncer update 73429 211867 0 0 3 0x14200 cleaner cleaner 25881 4362 0 0 3 0x14200 reaper reaper 54095 61339 0 0 3 0x14200 pgdaemon pagedaemon 447 284276 0 0 3 0x14200 bored crynlk 16149 140923 0 0 3 0x14200 bored crypto 53243 308813 0 0 3 0x14200 bored viomb 43324 421735 0 0 3 0x40014200 acpi0 acpi0 81313 492913 0 0 3 0x40014200 idle1 92019 88133 0 0 3 0x14200 bored softnet 89296 98441 0 0 3 0x14200 bored systqmp 1992 8677 0 0 3 0x14200 bored systq 60485 33654 0 0 3 0x40014200 bored softclock 43169 144572 0 0 3 0x40014200 idle0 1 83215 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 87527 (syz-executor.0) thread 0xffff80002123d208 (275622) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff828ce4d8) #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{1}> 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 60 11K 11K 78643K 689 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{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 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 10 0 0 1 0 1 1 0 8 0 pfstkey 112 10 0 0 1 0 1 1 0 8 0 pfstate 328 10 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 4846 0 4846 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 93 0 0 12 0 12 12 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 116 0 0 8 0 8 8 0 8 0 bufpl 280 3529 0 181 240 0 240 240 0 8 0 anonpl 16 24292 0 22052 16 1 15 15 0 124 5 amapchunkpl 152 791 0 716 6 1 5 5 0 158 1 amappl16 192 169 0 110 4 0 4 4 0 8 0 amappl15 184 11 0 8 1 0 1 1 0 8 0 amappl14 176 25 0 19 1 0 1 1 0 8 0 amappl13 168 20 0 18 1 0 1 1 0 8 0 amappl12 160 10 0 8 1 0 1 1 0 8 0 amappl11 152 51 0 36 1 0 1 1 0 8 0 amappl10 144 11 0 9 1 0 1 1 0 8 0 amappl9 136 386 0 384 1 0 1 1 0 8 0 amappl8 128 89 0 73 1 0 1 1 0 8 0 amappl7 120 228 0 224 1 0 1 1 0 8 0 amappl6 112 64 0 53 1 0 1 1 0 8 0 amappl5 104 367 0 347 1 0 1 1 0 8 0 amappl4 96 278 0 254 1 0 1 1 0 8 0 amappl3 88 112 0 105 1 0 1 1 0 8 0 amappl2 80 960 0 897 3 0 3 3 0 8 0 amappl1 72 15133 0 14668 23 4 19 19 0 8 9 amappl 80 465 0 435 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 5998 0 5975 2 0 2 2 0 8 0 vmmpepl 168 33386 0 32268 79 3 76 76 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 117579 0 112408 119 0 119 119 0 265 76 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 112 282 0 15 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff826fbff0) at x86_ipi_db+0x1a x86_ipi_handler() at x86_ipi_handler+0xb7 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff828ce2d0) at __mp_lock+0x122 __mp_acquire_count(ffffffff828ce2d0,1) at __mp_acquire_count+0x4c mi_switch() at mi_switch+0x390 sleep_finish(ffff80002129f620,1) at sleep_finish+0x111 single_thread_set(ffff80002123d728,3,0) at single_thread_set+0x3f4 exit1(ffff80002123d728,0,0,1) at exit1+0x98 sys_exit(ffff80002123d728,ffff80002129f760,ffff80002129f7b0) at sys_exit+0x16 syscall(ffff80002129f830) at syscall+0x4a1 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc1340, count: -12 ddb{0}> machine ddbcpu 1 Stopped at spllower+0x34: movq 0x5c0(%r12,%rax,8),%rbx ddb{1}> trace spllower(ffff8000212a8000) at spllower+0x34 single_thread_check_locked(ffff80002123d208,0) at single_thread_check_locked+0x196 userret(ffff80002123d208) at userret+0x335 syscall(ffff8000222ad680) at syscall+0x55c Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2aa28ad8180, count: -5