kern.securelevel: 0 -> 1 creating runtime link editor directory cache. preserving editor files. starting network daemons: sshd. starting local daemons:. Tue Sep 7 06:07:31 PDT 2021 OpenBSD/amd64 (ci-openbsd-multicore-7.c.syzkaller.internal) (tty00) Warning: Permanently added '10.128.0.49' (ED25519) to the list of known hosts. login: uvm_fault(0xfffffd806f5e5738, 0x58, 0, 1) -> e kernel: page fault trap, code=0 Stopped at rtm_output+0x3d5: movl 0x58(%r14),%edi TID PID UID PRFLAGS PFLAGS CPU COMMAND *266858 80516 0 0x2 0 0K syz-executor8183 282110 92400 0 0x12 0 1 sshd rtm_output(ffff800000b49300,ffff800021229888,ffff8000212297e8,8,0) at rtm_output+0x3d5 route_output(fffffd806d1b5800,fffffd806eeb4b58,0,0) at route_output+0x6b8 route_usrreq(fffffd806eeb4b58,9,fffffd806d1b5800,0,0,ffff8000ffff62b0) at route_usrreq+0x391 sosend(fffffd806eeb4b58,0,ffff800021229a90,0,0,80) at sosend+0x671 sendit(ffff8000ffff62b0,3,ffff800021229b70,0,ffff800021229c50) at sendit+0x589 sys_sendto(ffff8000ffff62b0,ffff800021229c08,ffff800021229c50) at sys_sendto+0x80 syscall(ffff800021229cd0) at syscall+0x5a9 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffde440, 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: uvm_fault(0xfffffd806f5e5738, 0x58, 0, 1) -> e ddb{0}> trace rtm_output(ffff800000b49300,ffff800021229888,ffff8000212297e8,8,0) at rtm_output+0x3d5 route_output(fffffd806d1b5800,fffffd806eeb4b58,0,0) at route_output+0x6b8 route_usrreq(fffffd806eeb4b58,9,fffffd806d1b5800,0,0,ffff8000ffff62b0) at route_usrreq+0x391 sosend(fffffd806eeb4b58,0,ffff800021229a90,0,0,80) at sosend+0x671 sendit(ffff8000ffff62b0,3,ffff800021229b70,0,ffff800021229c50) at sendit+0x589 sys_sendto(ffff8000ffff62b0,ffff800021229c08,ffff800021229c50) at sys_sendto+0x80 syscall(ffff800021229cd0) at syscall+0x5a9 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffde440, count: -8 ddb{0}> show registers rdi 0xffffffff rsi 0xffffffff rbp 0xffff8000212297d0 rbx 0x3 rdx 0x8b rcx 0x8 rax 0x1 r8 0xffffffff817b2c54 rtable_satoplen+0x1b4 r9 0x1 r10 0xa867eb71460f6c27 r11 0xfc7cc1a016b3e991 r12 0x8 r13 0x8 r14 0 r15 0xffff8000212297e8 rip 0xffffffff813fbf75 rtm_output+0x3d5 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800021229740 ss 0x10 rtm_output+0x3d5: movl 0x58(%r14),%edi ddb{0}> show proc PROC (syz-executor8183) pid=266858 stat=onproc flags process=2 proc=0 pri=52, usrpri=52, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff6010,0xffffffff829deed8 process=0xffff800021208440 user=0xffff800021224000, vmspace=0xfffffd806f5e5738 estcpu=2, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND *80516 266858 86867 0 7 0x2 syz-executor8183 86867 43261 92400 0 3 0x10008a sigsusp ksh 92400 282110 95331 0 7 0x12 sshd 60321 240623 1 0 3 0x100083 ttyin getty 95331 179429 1 0 3 0x88 select sshd 22282 356684 12188 74 3 0x100092 bpf pflogd 12188 398161 1 0 3 0x80 netio pflogd 85437 391065 34559 73 3 0x100090 kqread syslogd 34559 287774 1 0 3 0x100082 netio syslogd 44024 454602 1 0 3 0x100080 kqread resolvd 98222 72476 23583 77 3 0x100092 kqread dhcpleased 45959 253558 23583 77 3 0x100092 kqread dhcpleased 23583 53548 1 0 3 0x80 kqread dhcpleased 60438 6853 0 0 3 0x14200 bored smr 55278 141486 0 0 3 0x14200 pgzero zerothread 55832 469260 0 0 3 0x14200 aiodoned aiodoned 94311 45255 0 0 3 0x14200 syncer update 77832 419825 0 0 3 0x14200 cleaner cleaner 77925 74530 0 0 3 0x14200 reaper reaper 59870 456312 0 0 3 0x14200 pgdaemon pagedaemon 35154 292900 0 0 3 0x14200 bored crynlk 42672 446726 0 0 3 0x14200 bored crypto 31848 23607 0 0 3 0x14200 bored viomb 79429 498236 0 0 3 0x40014200 acpi0 acpi0 37271 3179 0 0 3 0x40014200 idle1 55071 206439 0 0 3 0x14200 bored softnet 18364 161201 0 0 3 0x14200 bored systqmp 3105 334626 0 0 3 0x14200 bored systq 48195 95505 0 0 3 0x40014200 bored softclock 64195 161944 0 0 3 0x40014200 idle0 1 285003 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 80516 (syz-executor8183) thread 0xffff8000ffff62b0 (266858) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82a062b0) #0 witness_lock+0x4b0 #1 kpageflttrap+0x229 #2 kerntrap+0xef #3 alltraps_kern_meltdown+0x7b #4 rtm_output+0x3d5 #5 route_output+0x6b8 #6 route_usrreq+0x391 #7 sosend+0x671 #8 sendit+0x589 #9 sys_sendto+0x80 #10 syscall+0x5a9 #11 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10111 6469K 6470K 78643K 11201 0 pcb 13 8K 8K 78643K 13 0 rtable 63 2K 2K 78643K 113 0 ifaddr 29 8K 8K 78643K 30 0 counters 40 33K 33K 78643K 40 0 ioctlops 0 0K 4K 78643K 1479 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 6 0 vnodes 1183 74K 75K 78643K 1188 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 1697 195K 286K 78643K 12598 0 file desc 1 0K 0K 78643K 1 0 proc 67 87K 87K 78643K 278 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 11 0K 0K 78643K 11 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 348 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 81 3K 6K 78643K 1719 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 4 0K 0K 78643K 4 0 temp 23 4193K 4257K 78643K 1964 0 kqueue 9 12K 12K 78643K 9 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 plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 18 0 14 1 0 1 1 0 8 0 rtentry 112 23 0 1 1 0 1 1 0 8 0 unpcb 120 35 0 20 1 0 1 1 0 8 0 syncache 296 5 0 5 1 0 1 1 0 8 1 tcpcb 736 8 0 5 1 0 1 1 0 8 0 arp 120 2 0 0 1 0 1 1 0 8 0 inpcb 304 32 0 26 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 8 0 0 1 0 1 1 0 8 0 pfstkey 112 8 0 0 1 0 1 1 0 8 0 pfstate 320 8 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 96 0 0 6 0 6 6 0 8 0 art_table 32 97 0 0 1 0 1 1 0 8 0 art_node 16 22 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1413 0 23 87 0 87 87 0 8 0 ffsino 272 1413 0 23 93 0 93 93 0 8 0 nchpl 144 1588 0 40 58 0 58 58 0 8 0 uvmvnodes 72 1423 0 0 26 0 26 26 0 8 0 vnodes 224 1423 0 0 84 0 84 84 0 8 0 namei 1024 4146 0 4146 1 0 1 1 0 8 1 percpumem 16 32 0 0 1 0 1 1 0 8 0 scxspl 216 3556 0 3556 2 1 1 2 0 8 1 plimitpl 152 16 0 9 1 0 1 1 0 8 0 sigapl 424 255 0 224 4 0 4 4 0 8 0 knotepl 112 24 0 0 1 0 1 1 0 8 0 kqueuepl 216 5 0 0 1 0 1 1 0 8 0 pipepl 336 69 0 66 1 0 1 1 0 8 0 fdescpl 496 239 0 224 3 0 3 3 0 8 0 filepl 152 1085 0 1026 3 0 3 3 0 8 0 lockfpl 104 6 0 4 1 0 1 1 0 8 0 lockfspl 48 4 0 2 1 0 1 1 0 8 0 sessionpl 144 18 0 9 1 0 1 1 0 8 0 pgrppl 48 18 0 9 1 0 1 1 0 8 0 ucredpl 96 69 0 57 1 0 1 1 0 8 0 zombiepl 144 224 0 224 1 0 1 1 0 8 1 processpl 1072 255 0 224 3 0 3 3 0 8 0 procpl 672 255 0 224 3 0 3 3 0 8 0 sockpl 480 85 0 60 4 0 4 4 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 75 0 0 10 0 10 10 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 127 0 0 8 0 8 8 0 8 0 bufpl 280 2014 0 93 138 0 138 138 0 8 0 anonpl 24 32701 0 30395 17 2 15 17 0 186 1 amapchunkpl 152 3023 0 2880 8 2 6 8 0 158 0 amappl16 200 96 0 92 1 0 1 1 0 8 0 amappl15 192 1 0 0 1 0 1 1 0 8 0 amappl13 176 18 0 17 1 0 1 1 0 8 0 amappl12 168 13 0 13 1 0 1 1 0 8 1 amappl11 160 52 0 38 1 0 1 1 0 8 0 amappl10 152 33 0 28 1 0 1 1 0 8 0 amappl9 144 222 0 219 1 0 1 1 0 8 0 amappl8 136 274 0 274 1 0 1 1 0 8 1 amappl7 128 51 0 44 1 0 1 1 0 8 0 amappl6 120 86 0 81 1 0 1 1 0 8 0 amappl5 112 169 0 152 1 0 1 1 0 8 0 amappl4 104 527 0 507 1 0 1 1 0 8 0 amappl3 96 48 0 45 1 0 1 1 0 8 0 amappl2 88 401 0 355 2 0 2 2 0 8 0 amappl1 80 7482 0 7103 9 0 9 9 0 8 0 amappl 88 1475 0 1411 2 0 2 2 0 92 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 24 239 0 224 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 239 0 224 1 0 1 1 0 8 0 vmmpekpl 168 6018 0 6003 1 0 1 1 0 8 0 vmmpepl 168 22477 0 21630 41 0 41 41 0 357 0 vmsppl 368 238 0 224 2 0 2 2 0 8 0 rwobjpl 56 6920 0 6365 9 0 9 9 0 8 1 pdppl 4096 486 0 448 50 12 38 44 0 8 0 pvpl 32 111609 0 107399 38 0 38 38 0 265 1 pmappl 224 238 0 224 2 0 2 2 0 8 0 extentpl 40 58 0 40 1 0 1 1 0 8 0 phpool 112 270 0 15 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace rtm_output(ffff800000b49300,ffff800021229888,ffff8000212297e8,8,0) at rtm_output+0x3d5 route_output(fffffd806d1b5800,fffffd806eeb4b58,0,0) at route_output+0x6b8 route_usrreq(fffffd806eeb4b58,9,fffffd806d1b5800,0,0,ffff8000ffff62b0) at route_usrreq+0x391 sosend(fffffd806eeb4b58,0,ffff800021229a90,0,0,80) at sosend+0x671 sendit(ffff8000ffff62b0,3,ffff800021229b70,0,ffff800021229c50) at sendit+0x589 sys_sendto(ffff8000ffff62b0,ffff800021229c08,ffff800021229c50) at sys_sendto+0x80 syscall(ffff800021229cd0) at syscall+0x5a9 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffde440, count: -8 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020d38ff0) at x86_ipi_db+0x1a x86_ipi_handler() at x86_ipi_handler+0xb7 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82a060a8) at __mp_lock+0x122 syscall(ffff8000211be5e0) at syscall+0x42d Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffb7580, count: 9 ddb{1}> trace x86_ipi_db(ffff800020d38ff0) at x86_ipi_db+0x1a x86_ipi_handler() at x86_ipi_handler+0xb7 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82a060a8) at __mp_lock+0x122 syscall(ffff8000211be5e0) at syscall+0x42d Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffb7580, count: -6 ddb{1}>