kern.securelevel: 0 -> 1 creating runtime link editor directory cache. preserving editor files. starting network daemons: sshd. starting local daemons:. Tue May 21 11:23:13 PDT 2019 OpenBSD/amd64 (ci-openbsd-main-6.c.syzkaller.internal) (tty00) Warning: Permanently added '10.128.0.52' (ECDSA) to the list of known hosts. executing program login: panic: kernel diagnostic assertion "(rt->rt_flags & RTF_MPATH) || mrt->rt_priority != prio" failed: file "/syzkaller/managers/main/kernel/sys/net/rtable.c", line 569 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *132855 97089 0 0x2 0 0 syz-executor9794 db_enter() at db_enter+0x18 panic() at panic+0x15c __assert(ffffffff81f7bcb4,ffffffff81f37f41,239,ffffffff81f14ad8) at __assert+0x2e rtable_insert(0,ffff80000098efc0,0,ffff8000006a1f90,8,fffffd8036dbc5b0) at rtable_insert+0x66b rtrequest(1,ffff800014989dc0,0,ffff800014989d38,0) at rtrequest+0x875 rtm_output(ffff8000006a1f00,ffff800014989e68,ffff800014989dc0,0,0) at rtm_output+0x6e5 route_output(fffffd8036ce6b00,fffffd80363fcd88,0,0) at route_output+0x7d7 route_usrreq(fffffd80363fcd88,9,fffffd8036ce6b00,0,0,ffff8000ffff5780) at route_usrreq+0x363 sosend(fffffd80363fcd88,0,ffff80001498a060,0,0,80) at sosend+0x660 sendit(ffff8000ffff5780,4,ffff80001498a140,0,ffff80001498a250) at sendit+0x53c sys_sendto(ffff8000ffff5780,ffff80001498a1e8,ffff80001498a250) at sys_sendto+0x80 syscall(ffff80001498a2c0) at syscall+0x511 Xsyscall(6,0,9c155925000,0,7f7ffffc5bb8,4) at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc5b30, count: 2 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 kernel diagnostic assertion "(rt->rt_flags & RTF_MPATH) || mrt->rt_priority != prio" failed: file "/syzkaller/managers/main/kernel/sys/net/rtable.c", line 569 ddb> trace db_enter() at db_enter+0x18 panic() at panic+0x15c __assert(ffffffff81f7bcb4,ffffffff81f37f41,239,ffffffff81f14ad8) at __assert+0x2e rtable_insert(0,ffff80000098efc0,0,ffff8000006a1f90,8,fffffd8036dbc5b0) at rtable_insert+0x66b rtrequest(1,ffff800014989dc0,0,ffff800014989d38,0) at rtrequest+0x875 rtm_output(ffff8000006a1f00,ffff800014989e68,ffff800014989dc0,0,0) at rtm_output+0x6e5 route_output(fffffd8036ce6b00,fffffd80363fcd88,0,0) at route_output+0x7d7 route_usrreq(fffffd80363fcd88,9,fffffd8036ce6b00,0,0,ffff8000ffff5780) at route_usrreq+0x363 sosend(fffffd80363fcd88,0,ffff80001498a060,0,0,80) at sosend+0x660 sendit(ffff8000ffff5780,4,ffff80001498a140,0,ffff80001498a250) at sendit+0x53c sys_sendto(ffff8000ffff5780,ffff80001498a1e8,ffff80001498a250) at sys_sendto+0x80 syscall(ffff80001498a2c0) at syscall+0x511 Xsyscall(6,0,9c155925000,0,7f7ffffc5bb8,4) at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc5b30, count: -13 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff800014989a80 rbx 0xffff800014989b30 rdx 0x2 rcx 0x1 rax 0x1 r8 0xffff800014989a40 r9 0x1 r10 0x127f0927ac13b248 r11 0x8869c1fa2f1be6bc r12 0x3000000008 r13 0xffff800014989a90 r14 0x100 r15 0x1 rip 0xffffffff81cf22a8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800014989a70 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (syz-executor9794) pid=132855 stat=onproc flags process=2 proc=0 pri=51, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff4718,0xffffffff82280670 process=0xffff800014952360 user=0xffff800014985000, vmspace=0xfffffd803f014000 estcpu=1, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *97089 132855 81234 0 7 0x2 syz-executor9794 81234 486458 5824 0 3 0x10008a pause ksh 5824 7360 91716 0 2 0x12 sshd 83342 123167 1 0 3 0x100083 ttyin getty 91716 350235 1 0 3 0x80 select sshd 55937 183281 50500 73 3 0x100090 kqread syslogd 50500 70788 1 0 3 0x100082 netio syslogd 42266 349140 1 77 3 0x100090 poll dhclient 6752 471647 1 0 3 0x80 poll dhclient 83692 386315 0 0 2 0x14200 zerothread 82497 148144 0 0 3 0x14200 aiodoned aiodoned 43861 368110 0 0 3 0x14200 syncer update 48480 499140 0 0 3 0x14200 cleaner cleaner 92593 189039 0 0 3 0x14200 reaper reaper 83063 264568 0 0 3 0x14200 pgdaemon pagedaemon 20692 76094 0 0 3 0x14200 bored crynlk 59298 174393 0 0 3 0x14200 bored crypto 54092 309291 0 0 3 0x40014200 acpi0 acpi0 22277 63464 0 0 3 0x14200 bored softnet 21042 230186 0 0 2 0x14200 systqmp 53886 380670 0 0 3 0x14200 bored systq 83727 76490 0 0 3 0x40014200 bored softclock 84628 129745 0 0 3 0x40014200 idle0 5389 190518 0 0 3 0x14200 bored smr 1 1247 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 Kern Lim devbuf 9426 6306K 6307K 78643K 10519 0 0 pcb 25 9K 9K 78643K 57 0 0 rtable 67 2K 2K 78643K 123 0 0 ifaddr 21 7K 7K 78643K 21 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 13 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1174 74K 74K 78643K 1179 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 1K 78643K 2 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 2 0K 0K 78643K 2 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12537 0 0 file desc 1 0K 0K 78643K 1 0 0 proc 40 30K 38K 78643K 207 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 in_multi 11 0K 0K 78643K 11 0 0 ether_multi 1 0K 0K 78643K 1 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 18 79K 79K 78643K 18 0 0 exec 0 0K 1K 78643K 152 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 51 2K 3K 78643K 702 0 0 UVM aobj 2 2K 2K 78643K 2 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 NDP 3 0K 0K 78643K 3 0 0 temp 31 2691K 2755K 78643K 1721 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 2 0 0 1 0 1 1 0 8 0 inpcbpl 280 22 0 16 1 0 1 1 0 8 0 plimitpl 152 13 0 8 1 0 1 1 0 8 0 rtentry 112 25 0 1 1 0 1 1 0 8 0 syncache 264 5 0 5 2 1 1 1 0 8 1 tcpcb 544 8 0 5 1 0 1 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 102 0 0 7 0 7 7 0 8 0 art_table 32 104 0 0 1 0 1 1 0 8 0 art_node 16 24 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1385 0 16 45 0 45 45 0 8 0 ffsino 240 1385 0 16 81 0 81 81 0 8 0 nchpl 144 1558 0 30 57 0 57 57 0 8 0 uvmvnodes 72 1394 0 0 26 0 26 26 0 8 0 vnodes 200 1394 0 0 74 0 74 74 0 8 0 namei 1024 3280 0 3280 3 2 1 1 0 8 1 scxspl 192 2389 0 2389 7 6 1 6 0 8 1 sigapl 432 176 0 166 2 0 2 2 0 8 0 knotepl 112 5 0 0 1 0 1 1 0 8 0 kqueuepl 104 1 0 0 1 0 1 1 0 8 0 pipepl 112 118 0 111 3 2 1 1 0 8 0 fdescpl 424 177 0 166 2 0 2 2 0 8 0 filepl 120 818 0 774 2 0 2 2 0 8 0 lockfpl 104 6 0 6 1 1 0 1 0 8 0 lockfspl 48 3 0 3 1 1 0 1 0 8 0 sessionpl 112 17 0 9 1 0 1 1 0 8 0 pgrppl 48 17 0 9 1 0 1 1 0 8 0 ucredpl 96 47 0 40 1 0 1 1 0 8 0 zombiepl 144 166 0 166 3 2 1 1 0 8 1 processpl 840 191 0 166 4 0 4 4 0 8 0 procpl 600 191 0 166 3 0 3 3 0 8 0 sockpl 384 66 0 48 2 0 2 2 0 8 0 mcl4k 4096 10 0 10 2 1 1 1 0 8 1 mcl2k 2048 5812 0 5781 8 2 6 7 0 8 1 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9965 0 9911 6 2 4 5 0 8 0 bufpl 256 2053 0 258 113 0 113 113 0 8 0 anonpl 16 17290 0 16174 6 1 5 6 0 62 0 amapchunkpl 152 491 0 456 2 0 2 2 0 158 0 amappl16 192 76 0 70 1 0 1 1 0 8 0 amappl14 176 14 0 13 3 2 1 1 0 8 0 amappl12 160 5 0 5 1 1 0 1 0 8 0 amappl11 152 41 0 27 1 0 1 1 0 8 0 amappl10 144 45 0 45 3 2 1 1 0 8 1 amappl9 136 375 0 374 1 0 1 1 0 8 0 amappl8 128 84 0 80 1 0 1 1 0 8 0 amappl7 120 14 0 13 1 0 1 1 0 8 0 amappl6 112 41 0 37 1 0 1 1 0 8 0 amappl5 104 131 0 120 1 0 1 1 0 8 0 amappl4 96 315 0 296 1 0 1 1 0 8 0 amappl3 88 154 0 144 1 0 1 1 0 8 0 amappl2 80 688 0 640 4 2 2 2 0 8 1 amappl1 72 11931 0 11546 14 6 8 14 0 8 0 amappl 80 369 0 350 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 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 1 0 0 1 0 1 1 0 8 0 uaddrrnd 24 177 0 166 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 177 0 166 1 0 1 1 0 8 0 vmmpekpl 168 5286 0 5271 1 0 1 1 0 8 0 vmmpepl 168 24808 0 24077 50 15 35 44 0 357 2 vmsppl 264 176 0 166 1 0 1 1 0 8 0 pdppl 4096 360 0 332 5 0 5 5 0 8 0 pvpl 32 71303 0 68562 37 11 26 26 0 265 3 pmappl 200 176 0 166 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 233 0 9 7 0 7 7 0 8 0