kern.securelevel: 0 -> 1 creating runtime link editor directory cache. preserving editor files. starting network daemons: sshd. starting local daemons:. Wed Dec 2 16:27:02 PST 2020 OpenBSD/amd64 (ci-openbsd-setuid-test-2.c.syzkaller.internal) (tty00) Warning: Permanently added '10.128.0.239' (ECDSA) to the list of known hosts. 2020/12/02 16:27:15 fuzzer started 2020/12/02 16:27:17 connecting to host at 10.128.15.235:3630 2020/12/02 16:27:17 checking machine... 2020/12/02 16:27:17 checking revisions... 2020/12/02 16:27:17 testing simple program... login: uvm_fault(0xffffffff828b3da8, 0xffff80012a2395b0, 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(0xffffffff828b3da8, 0xffff80012a2395b0, 0, 1) -> e spllower(ffff80002129a000) at spllower+0x34 end trace frame: 0xffff8000234a5990, count: 0 ddb{1}> trace spllower(ffff80002129a000) at spllower+0x34 single_thread_check_locked(ffff8000212919b8,0) at single_thread_check_locked+0x196 userret(ffff8000212919b8) at userret+0x335 syscall(ffff8000234a5ac0) at syscall+0x55c Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x73754c5d580, count: -5 ddb{1}> show registers rdi 0xffff80002129a000 rsi 0x99f rbp 0xffff8000234a5930 rbx 0x1000 __ALIGN_SIZE rdx 0xffff80002129a000 rcx 0x99e rax 0x2129a000 r8 0xffffffff822b4d90 setrunnable+0xa0 r9 0x5 r10 0xa70638e813e5e886 r11 0xf6f54406225e8f8 r12 0xffff800020d68ff0 r13 0x1 r14 0x2129a000 r15 0xffff8000212919b8 rip 0xffffffff81795ab4 spllower+0x34 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000234a58e0 ss 0x10 spllower+0x34: movq 0x5c0(%r12,%rax,8),%rbx ddb{1}> show proc PROC (syz-executor.0) pid=105890 stat=onproc flags process=1010 proc=4080000 pri=32, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff8000211c2a48,0xffffffff828f9680 process=0xffff8000ffff94a8 user=0xffff8000234a0000, vmspace=0xfffffd806ea52b88 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 81531 197657 61023 32767 7 0x3010 syz-executor.0 *81531 105890 61023 32767 7 0x4081010 syz-executor.0 61023 201302 73934 32767 3 0x90 nanosleep syz-executor.0 73934 323678 59157 0 3 0x82 wait syz-executor.0 59157 410050 46451 0 3 0x82 kqread syz-fuzzer 59157 94216 46451 0 3 0x4000082 thrsleep syz-fuzzer 59157 421896 46451 0 3 0x4000082 thrsleep syz-fuzzer 59157 334180 46451 0 3 0x4000082 thrsleep syz-fuzzer 59157 37436 46451 0 3 0x4000082 thrsleep syz-fuzzer 59157 150811 46451 0 3 0x4000082 thrsleep syz-fuzzer 59157 473423 46451 0 3 0x4000082 thrsleep syz-fuzzer 46451 252999 4557 0 3 0x10008a pause ksh 4557 174437 74567 0 3 0x92 select sshd 75695 2300 1 0 3 0x100083 ttyin getty 74567 432040 1 0 3 0x80 select sshd 96188 313621 18362 73 3 0x100090 kqread syslogd 18362 404860 1 0 3 0x100082 netio syslogd 21865 87770 1 77 3 0x100090 poll dhclient 17500 284743 1 0 3 0x80 poll dhclient 69724 399837 0 0 3 0x14200 bored smr 46542 52158 0 0 3 0x14200 pgzero zerothread 80579 212794 0 0 3 0x14200 aiodoned aiodoned 41442 99409 0 0 3 0x14200 syncer update 10583 97729 0 0 3 0x14200 cleaner cleaner 71750 415247 0 0 3 0x14200 reaper reaper 17327 469407 0 0 3 0x14200 pgdaemon pagedaemon 66192 518716 0 0 3 0x14200 bored crynlk 72517 293260 0 0 3 0x14200 bored crypto 79565 282994 0 0 3 0x14200 bored viomb 85310 202814 0 0 3 0x40014200 acpi0 acpi0 72194 263263 0 0 3 0x40014200 idle1 3870 296590 0 0 3 0x14200 bored softnet 72544 66642 0 0 3 0x14200 bored systqmp 21620 462570 0 0 3 0x14200 bored systq 67635 410281 0 0 3 0x40014200 bored softclock 29879 281452 0 0 3 0x40014200 idle0 1 188213 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 81531 (syz-executor.0) thread 0xffff8000212919b8 (105890) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff828f9890) #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 9472 6346K 6346K 78643K 10562 0 pcb 13 8K 8K 78643K 13 0 rtable 83 2K 2K 78643K 153 0 ifaddr 32 8K 8K 78643K 32 0 counters 41 33K 33K 78643K 41 0 ioctlops 0 0K 2K 78643K 14 0 mount 1 1K 1K 78643K 1 0 vnodes 1199 75K 75K 78643K 1204 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 4 12K 16K 78643K 19 0 proc 48 50K 70K 78643K 325 0 subproc 17 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 295 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 61 11K 11K 78643K 615 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 6 0K 0K 78643K 6 0 temp 40 3954K 4017K 78643K 1667 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 23 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 28 0 22 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 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 144 0 0 9 0 9 9 0 8 0 art_table 32 145 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 1412 0 21 87 0 87 87 0 8 0 ffsino 272 1412 0 21 93 0 93 93 0 8 0 nchpl 144 1627 0 36 59 0 59 59 0 8 0 uvmvnodes 72 1438 0 0 27 0 27 27 0 8 0 vnodes 208 1438 0 0 76 0 76 76 0 8 0 namei 1024 3829 0 3829 1 0 1 1 0 8 1 percpumem 16 31 0 0 1 0 1 1 0 8 0 scxspl 216 4776 0 4776 2 1 1 2 0 8 1 plimitpl 152 14 0 7 1 0 1 1 0 8 0 sigapl 424 212 0 182 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 69 0 61 1 0 1 1 0 8 0 fdescpl 496 196 0 182 2 0 2 2 0 8 0 filepl 152 921 0 849 3 0 3 3 0 8 0 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 16 0 7 1 0 1 1 0 8 0 pgrppl 48 16 0 7 1 0 1 1 0 8 0 ucredpl 96 51 0 43 1 0 1 1 0 8 0 zombiepl 144 182 0 182 1 0 1 1 0 8 1 processpl 1056 212 0 182 4 1 3 3 0 8 1 procpl 656 219 0 182 4 0 4 4 0 8 0 sockpl 400 68 0 52 2 0 2 2 0 8 0 mcl4k 4096 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 80 0 0 10 0 10 10 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 106 0 0 7 0 7 7 0 8 0 bufpl 280 3445 0 173 234 0 234 234 0 8 0 anonpl 16 22577 0 20233 16 2 14 14 0 124 4 amapchunkpl 152 765 0 664 6 0 6 6 0 158 1 amappl16 192 168 0 100 4 0 4 4 0 8 0 amappl15 184 1 0 1 1 1 0 1 0 8 0 amappl14 176 26 0 18 1 0 1 1 0 8 0 amappl13 168 18 0 16 1 0 1 1 0 8 0 amappl12 160 11 0 9 2 1 1 1 0 8 0 amappl11 152 42 0 33 1 0 1 1 0 8 0 amappl10 144 6 0 2 1 0 1 1 0 8 0 amappl9 136 391 0 390 1 0 1 1 0 8 0 amappl8 128 86 0 70 1 0 1 1 0 8 0 amappl7 120 202 0 196 1 0 1 1 0 8 0 amappl6 112 54 0 46 1 0 1 1 0 8 0 amappl5 104 318 0 303 1 0 1 1 0 8 0 amappl4 96 243 0 220 1 0 1 1 0 8 0 amappl3 88 100 0 92 1 0 1 1 0 8 0 amappl2 80 835 0 776 2 0 2 2 0 8 0 amappl1 72 13177 0 12733 22 4 18 18 0 8 8 amappl 80 417 0 383 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 24 196 0 182 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 196 0 182 1 0 1 1 0 8 0 vmmpekpl 168 5706 0 5689 1 0 1 1 0 8 0 vmmpepl 168 29861 0 28720 80 7 73 73 0 357 23 vmsppl 368 195 0 182 2 0 2 2 0 8 0 pdppl 4096 399 0 364 47 10 37 37 0 8 2 pvpl 32 108846 0 103608 117 0 117 117 0 265 74 pmappl 232 195 0 182 1 0 1 1 0 8 0 extentpl 40 58 0 40 1 0 1 1 0 8 0 phpool 112 267 0 12 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(ffffffff826c3ff0) at x86_ipi_db+0x1a x86_ipi_handler() at x86_ipi_handler+0xb7 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff828f9688) at __mp_lock+0x122 __mp_acquire_count(ffffffff828f9688,1) at __mp_acquire_count+0x4c mi_switch() at mi_switch+0x390 sleep_finish(ffff80002349f270,1) at sleep_finish+0x111 single_thread_set(ffff8000211c2a48,3,0) at single_thread_set+0x3f4 exit1(ffff8000211c2a48,0,0,1) at exit1+0x98 sys_exit(ffff8000211c2a48,ffff80002349f3b0,ffff80002349f400) at sys_exit+0x16 syscall(ffff80002349f480) at syscall+0x4a1 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd2440, count: -12 ddb{0}> machine ddbcpu 1 Stopped at spllower+0x34: movq 0x5c0(%r12,%rax,8),%rbx ddb{1}> trace spllower(ffff80002129a000) at spllower+0x34 single_thread_check_locked(ffff8000212919b8,0) at single_thread_check_locked+0x196 userret(ffff8000212919b8) at userret+0x335 syscall(ffff8000234a5ac0) at syscall+0x55c Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x73754c5d580, count: -5