kern.securelevel: 0 -> 1 creating runtime link editor directory cache. preserving editor files. starting network daemons: sshd. starting local daemons:. Thu Dec 12 05:48:48 PST 2019 OpenBSD/amd64 (ci-openbsd-main-7.c.syzkaller.internal) (tty00) Warning: Permanently added '10.128.0.92' (ECDSA) to the list of known hosts. 2019/12/12 05:49:00 parsed 1 programs 2019/12/12 05:49:06 executed programs: 0 login: panic: receive 3: so 0xfffffd8036faa180, so_type 3, m 0xfffffd8034e45700, m_type 0 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND * 39606 8221 0 0 0 0 dhclient db_enter() at db_enter+0x18 panic(ffffffff82188dec) at panic+0x15c soreceive(fffffd8036faa180,0,ffff800014896ab8,0,0,ffff8000148969c4) at soreceive+0x16e7 soo_read(fffffd80381a9078,ffff800014896ab8,0) at soo_read+0x53 dofilereadv(ffff8000ffff8c60,6,ffff800014896ab8,0,ffff800014896ba0) at dofilereadv+0x1a2 sys_read(ffff8000ffff8c60,ffff800014896b50,ffff800014896ba0) at sys_read+0x83 syscall(ffff800014896c20) at syscall+0x507 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc08d0, count: 7 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic receive 3: so 0xfffffd8036faa180, so_type 3, m 0xfffffd8034e45700, m_type 0 ddb> trace db_enter() at db_enter+0x18 panic(ffffffff82188dec) at panic+0x15c soreceive(fffffd8036faa180,0,ffff800014896ab8,0,0,ffff8000148969c4) at soreceive+0x16e7 soo_read(fffffd80381a9078,ffff800014896ab8,0) at soo_read+0x53 dofilereadv(ffff8000ffff8c60,6,ffff800014896ab8,0,ffff800014896ba0) at dofilereadv+0x1a2 sys_read(ffff8000ffff8c60,ffff800014896b50,ffff800014896ba0) at sys_read+0x83 syscall(ffff800014896c20) at syscall+0x507 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc08d0, count: -8 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff800014896800 rbx 0xffff8000148968b0 rdx 0x2 rcx 0x1 rax 0x1 r8 0xffff8000148967c0 r9 0x1 r10 0xf6d4bd510dcb5bfd r11 0x1692df93e6ca431d r12 0x3000000008 r13 0xffff800014896810 r14 0x100 r15 0x1 rip 0xffffffff8184a2a8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff8000148967f0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (dhclient) pid=39606 stat=onproc flags process=0 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff89e8,0xffff8000ffff8ee8 process=0xffff8000ffff6378 user=0xffff800014891000, vmspace=0xfffffd803f012770 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 42051 297966 27032 0 3 0x82 thrsleep syz-execprog 42051 31743 27032 0 3 0x4000082 nanosleep syz-execprog 42051 290430 27032 0 3 0x4000082 thrsleep syz-execprog 42051 412609 27032 0 3 0x4000082 thrsleep syz-execprog 42051 3361 27032 0 3 0x4000082 thrsleep syz-execprog 42051 245310 27032 0 3 0x4000082 wait syz-execprog 42051 412930 27032 0 3 0x4000082 thrsleep syz-execprog 27032 184803 12926 0 3 0x10008a pause ksh 12926 28821 28528 0 3 0x92 select sshd 94919 73577 1 0 3 0x100083 ttyin getty 28528 336330 1 0 3 0x80 select sshd 88633 239191 24204 73 3 0x100090 kqread syslogd 24204 415933 1 0 3 0x100082 netio syslogd 52209 231307 1 77 2 0x100010 dhclient * 8221 39606 1 0 7 0 dhclient 39545 122481 0 0 3 0x14200 pgzero zerothread 92892 433154 0 0 3 0x14200 aiodoned aiodoned 76250 148081 0 0 3 0x14200 syncer update 32077 194934 0 0 3 0x14200 cleaner cleaner 7837 166186 0 0 3 0x14200 reaper reaper 1309 468205 0 0 3 0x14200 pgdaemon pagedaemon 91034 314809 0 0 3 0x14200 bored crynlk 52354 70663 0 0 3 0x14200 bored crypto 53917 367109 0 0 3 0x40014200 acpi0 acpi0 31529 399782 0 0 2 0x14200 softnet 76229 229836 0 0 2 0x14200 systqmp 69688 422628 0 0 3 0x14200 bored systq 40881 47573 0 0 3 0x40014200 bored softclock 10937 428344 0 0 3 0x40014200 idle0 56100 139528 0 0 3 0x14200 bored smr 1 15440 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9440 6320K 6320K 78643K 10539 0 pcb 13 8K 8K 78643K 13 0 rtable 63 1K 2K 78643K 157 0 ifaddr 24 7K 9K 78643K 33 0 counters 19 16K 16K 78643K 19 0 ioctlops 0 0K 2K 78643K 14 0 mount 1 1K 1K 78643K 1 0 vnodes 1180 74K 74K 78643K 1185 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 0K 0K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1794 195K 288K 78643K 12646 0 file desc 2 4K 12K 78643K 18 0 proc 47 38K 54K 78643K 318 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 11 0K 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 18 79K 79K 78643K 18 0 exec 0 0K 1K 78643K 171 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 74 11K 12K 78643K 864 0 UVM aobj 2 2K 2K 78643K 2 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 3 0K 0K 78643K 6 0 temp 22 3001K 3065K 78643K 3059 0 SYN cache 2 16K 16K 78643K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 4 0 2 1 0 1 1 0 8 0 rtpcb 80 17 0 15 1 0 1 1 0 8 0 rtentry 112 34 0 11 1 0 1 1 0 8 0 unpcb 120 27 0 19 1 0 1 1 0 8 0 syncache 264 5 0 5 1 0 1 1 0 8 1 tcpcb 544 8 0 5 1 0 1 1 0 8 0 inpcb 280 27 0 21 1 0 1 1 0 8 0 nd6 48 2 0 2 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 167 0 0 11 0 11 11 0 8 0 art_table 32 168 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 dino1pl 128 1415 0 20 46 0 46 46 0 8 1 ffsino 240 1415 0 20 83 0 83 83 0 8 0 nchpl 144 1640 0 38 60 0 60 60 0 8 0 uvmvnodes 72 1424 0 0 26 0 26 26 0 8 0 vnodes 208 1424 0 0 75 0 75 75 0 8 0 namei 1024 3864 0 3864 1 0 1 1 0 8 1 scxspl 192 4014 0 4014 2 1 1 2 0 8 1 plimitpl 152 14 0 8 1 0 1 1 0 8 0 sigapl 432 197 0 186 2 0 2 2 0 8 0 knotepl 112 39 0 28 1 0 1 1 0 8 0 kqueuepl 104 2 0 0 1 0 1 1 0 8 0 pipepl 128 134 0 122 1 0 1 1 0 8 0 fdescpl 424 198 0 186 2 0 2 2 0 8 0 filepl 120 998 0 946 2 0 2 2 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 112 18 0 9 1 0 1 1 0 8 0 pgrppl 48 18 0 9 1 0 1 1 0 8 0 ucredpl 96 47 0 40 1 0 1 1 0 8 0 zombiepl 144 187 0 186 1 0 1 1 0 8 0 processpl 872 212 0 186 4 0 4 4 0 8 0 procpl 632 218 0 186 3 0 3 3 0 8 0 sockpl 384 71 0 55 2 0 2 2 0 8 0 mcl4k 4096 10 0 10 1 0 1 1 0 8 1 mcl2k 2048 5478 0 5449 6 2 4 6 0 8 0 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9517 0 9441 8 1 7 7 0 8 0 bufpl 280 5846 0 1353 321 0 321 321 0 8 0 anonpl 16 20284 0 18811 14 1 13 13 0 62 6 amapchunkpl 152 722 0 663 5 0 5 5 0 158 2 amappl16 192 96 0 74 2 0 2 2 0 8 0 amappl15 184 50 0 46 1 0 1 1 0 8 0 amappl14 176 22 0 20 1 0 1 1 0 8 0 amappl13 168 1 0 0 1 0 1 1 0 8 0 amappl12 160 21 0 16 1 0 1 1 0 8 0 amappl11 152 43 0 32 1 0 1 1 0 8 0 amappl10 144 15 0 13 1 0 1 1 0 8 0 amappl9 136 384 0 382 1 0 1 1 0 8 0 amappl8 128 86 0 77 1 0 1 1 0 8 0 amappl7 120 85 0 76 1 0 1 1 0 8 0 amappl6 112 57 0 52 1 0 1 1 0 8 0 amappl5 104 154 0 143 1 0 1 1 0 8 0 amappl4 96 423 0 400 1 0 1 1 0 8 0 amappl3 88 124 0 117 1 0 1 1 0 8 0 amappl2 80 854 0 795 3 0 3 3 0 8 1 amappl1 72 13838 0 13440 27 10 17 20 0 8 8 amappl 80 421 0 396 1 0 1 1 0 84 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 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 1 0 0 1 0 1 1 0 8 0 uaddrrnd 24 198 0 186 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 198 0 186 1 0 1 1 0 8 0 vmmpekpl 168 6052 0 6037 1 0 1 1 0 8 0 vmmpepl 168 29421 0 28553 84 6 78 78 0 357 39 vmsppl 272 197 0 186 1 0 1 1 0 8 0 pdppl 4096 402 0 372 5 0 5 5 0 8 0 pvpl 32 103962 0 100257 113 0 113 113 0 265 81 pmappl 200 197 0 186 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 123 0 5 4 0 4 4 0 8 0 ddb>