kern.securelevel: 0 -> 1 creating runtime link editor directory cache. preserving editor files. starting network daemons: sshd. starting local daemons:. Fri Feb 25 06:24:56 PST 2022 OpenBSD/amd64 (ci-openbsd-multicore-0.c.syzkaller.internal) (tty00) Warning: Permanently added '10.128.0.116' (ED25519) to the list of known hosts. executing program login: uvm_fault(0xfffffd806ee06008, 0x0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at socreate+0x84: cmpq $0,0(%rax) TID PID UID PRFLAGS PFLAGS CPU COMMAND 133021 44145 0 0x2 0 0 syz-executor282110306 * 21247 44145 0 0x2 0x4000000 1K syz-executor282110306 socreate(18,ffff8000211d3ed8,0,29) at socreate+0x84 sys_socket(ffff8000211427e8,ffff8000211d3f68,ffff8000211d3fc0) at sys_socket+0xd8 syscall(ffff8000211d4030) at syscall+0x489 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc8b2cb76b30, count: 11 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: uvm_fault(0xfffffd806ee06008, 0x0, 0, 1) -> e ddb{1}> trace socreate(18,ffff8000211d3ed8,0,29) at socreate+0x84 sys_socket(ffff8000211427e8,ffff8000211d3f68,ffff8000211d3fc0) at sys_socket+0xd8 syscall(ffff8000211d4030) at syscall+0x489 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc8b2cb76b30, count: -4 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff8000211d3ec0 rbx 0x18 rdx 0 rcx 0x29 rax 0 r8 0xffffffff811cfb80 uvm_map_inentry_pc r9 0x24 r10 0 r11 0x7d08ba759f9b6652 r12 0xffff8000211d3ed8 r13 0xffffffff82675e40 inet6sw r14 0 r15 0x29 rip 0xffffffff81b8f4e4 socreate+0x84 cs 0x8 rflags 0x10282 __ALIGN_SIZE+0xf282 rsp 0xffff8000211d3e60 ss 0x10 socreate+0x84: cmpq $0,0(%rax) ddb{1}> show proc PROC (syz-executor282110306) pid=21247 stat=onproc flags process=2 proc=4000000 pri=32, usrpri=55, nice=20 forw=0xffffffffffffffff, list=0xffff800021142a88,0xffffffff82b22b18 process=0xffff8000211954d8 user=0xffff8000211cf000, vmspace=0xfffffd806ee06008 estcpu=5, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 44145 133021 75092 0 7 0x2 syz-executor282110306 *44145 21247 75092 0 7 0x4000002 syz-executor282110306 75092 94540 20447 0 3 0x10008a sigsusp ksh 20447 393407 70583 0 3 0x9a kqread sshd 18955 423556 1 0 3 0x100083 ttyin getty 70583 451703 1 0 3 0x88 kqread sshd 48053 341123 14511 74 3 0x1100092 bpf pflogd 14511 39324 1 0 3 0x80 netio pflogd 82982 372363 35301 73 3 0x1100090 kqread syslogd 35301 83861 1 0 3 0x100082 netio syslogd 62111 228366 1 0 3 0x100080 kqread resolvd 60682 206596 672 77 3 0x100092 kqread dhcpleased 95732 199878 672 77 3 0x100092 kqread dhcpleased 672 494534 1 0 3 0x80 kqread dhcpleased 86217 130814 0 0 3 0x14200 bored smr 46220 376033 0 0 3 0x14200 pgzero zerothread 68535 422188 0 0 3 0x14200 aiodoned aiodoned 93699 368940 0 0 3 0x14200 syncer update 79922 67827 0 0 3 0x14200 cleaner cleaner 57795 252475 0 0 3 0x14200 reaper reaper 52455 83776 0 0 3 0x14200 pgdaemon pagedaemon 2902 31907 0 0 3 0x14200 bored viomb 91229 32115 0 0 3 0x40014200 acpi0 acpi0 12321 251911 0 0 3 0x40014200 idle1 92969 70748 0 0 3 0x14200 bored softnet 85993 398448 0 0 3 0x14200 bored systqmp 16071 10902 0 0 3 0x14200 bored systq 20385 218527 0 0 3 0x40014200 bored softclock 64076 247873 0 0 3 0x40014200 idle0 1 117969 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 44145 (syz-executor282110306) thread 0xffff8000211427e8 (21247) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82b6e770) #0 witness_lock+0x44d #1 kpageflttrap+0x23d #2 kerntrap+0xef #3 alltraps_kern_meltdown+0x7b #4 socreate+0x84 #5 sys_socket+0xd8 #6 syscall+0x489 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10149 6454K 6455K 78643K 11239 0 pcb 13 8K 8K 78643K 13 0 rtable 62 2K 2K 78643K 112 0 ifaddr 29 8K 8K 78643K 32 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 5 0 vnodes 1167 73K 73K 78643K 1180 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 12548 0 file desc 1 0K 0K 78643K 1 0 proc 67 87K 87K 78643K 282 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 25 122K 122K 78643K 25 0 exec 0 0K 2K 78643K 432 0 tdb 3 0K 0K 78643K 3 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 92 3K 5K 78643K 2183 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 24 4686K 4749K 78643K 3324 0 kqueue 11 16K 18K 78643K 24 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 plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 17 0 14 1 0 1 1 0 8 0 rtentry 112 23 0 1 1 0 1 1 0 8 0 unpcb 136 35 0 20 1 0 1 1 0 8 0 syncache 296 5 0 5 2 1 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 1424 0 39 87 0 87 87 0 8 0 ffsino 272 1424 0 39 93 0 93 93 0 8 0 nchpl 144 1599 0 49 58 0 58 58 0 8 0 uvmvnodes 80 1434 0 0 30 0 30 30 0 8 0 vnodes 224 1434 0 0 85 0 85 85 0 8 0 namei 1024 4422 0 4422 1 0 1 1 0 8 1 percpumem 16 32 0 0 1 0 1 1 0 8 0 scxspl 216 3795 0 3795 2 1 1 2 0 8 1 plimitpl 152 16 0 9 1 0 1 1 0 8 0 sigapl 424 320 0 291 4 0 4 4 0 8 0 futexpl 64 1 0 1 1 0 1 1 0 8 1 knotepl 120 43 0 0 2 0 2 2 0 8 0 kqueuepl 216 20 0 13 1 0 1 1 0 8 0 pipepl 336 86 0 83 1 0 1 1 0 8 0 fdescpl 496 306 0 291 3 0 3 3 0 8 0 filepl 152 1145 0 1087 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 144 291 0 291 1 0 1 1 0 8 1 processpl 1064 320 0 291 3 0 3 3 0 8 0 procpl 672 321 0 291 3 0 3 3 0 8 0 sockpl 480 84 0 60 4 0 4 4 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 73 0 0 10 0 10 10 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 126 0 0 8 0 8 8 0 8 0 bufpl 288 2024 0 93 138 0 138 138 0 8 0 anonpl 24 41828 0 39239 18 2 16 18 0 186 0 amapchunkpl 152 3999 0 3830 9 2 7 8 0 158 0 amappl16 200 29 0 29 1 1 0 1 0 8 0 amappl15 192 67 0 64 1 0 1 1 0 8 0 amappl14 184 2 0 0 1 0 1 1 0 8 0 amappl13 176 35 0 33 1 0 1 1 0 8 0 amappl12 168 21 0 21 1 0 1 1 0 8 1 amappl11 160 52 0 38 1 0 1 1 0 8 0 amappl10 152 10 0 8 1 0 1 1 0 8 0 amappl9 144 467 0 465 1 0 1 1 0 8 0 amappl8 136 371 0 367 1 0 1 1 0 8 0 amappl7 128 65 0 62 1 0 1 1 0 8 0 amappl6 120 116 0 103 1 0 1 1 0 8 0 amappl5 112 174 0 162 1 0 1 1 0 8 0 amappl4 104 638 0 618 1 0 1 1 0 8 0 amappl3 96 121 0 112 1 0 1 1 0 8 0 amappl2 88 370 0 332 1 0 1 1 0 8 0 amappl1 80 8730 0 8343 10 1 9 10 0 8 0 amappl 88 1903 0 1828 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 72 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 306 0 291 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 306 0 291 1 0 1 1 0 8 0 vmmpekpl 168 6218 0 6201 1 0 1 1 0 8 0 vmmpepl 168 26610 0 25730 48 7 41 48 0 357 0 vmsppl 368 305 0 291 2 0 2 2 0 8 0 rwobjpl 56 9557 0 7550 29 0 29 29 0 8 0 pdppl 4096 619 0 582 51 14 37 49 0 8 0 pvpl 32 134933 0 130481 44 7 37 44 0 265 0 pmappl 248 305 0 291 2 0 2 2 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 409 0 17 12 0 12 12 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff82999ff0) at x86_ipi_db+0x1a x86_ipi_handler() at x86_ipi_handler+0xb7 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82b6e568) at __mp_lock+0x122 softintr_dispatch(0) at softintr_dispatch+0x4e Xsoftclock() at Xsoftclock+0x1f end of kernel end trace frame: 0x7f7fffffbba0, count: 9 ddb{0}> trace x86_ipi_db(ffffffff82999ff0) at x86_ipi_db+0x1a x86_ipi_handler() at x86_ipi_handler+0xb7 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82b6e568) at __mp_lock+0x122 softintr_dispatch(0) at softintr_dispatch+0x4e Xsoftclock() at Xsoftclock+0x1f end of kernel end trace frame: 0x7f7fffffbba0, count: -6 ddb{0}> machine ddbcpu 1 Stopped at socreate+0x84: cmpq $0,0(%rax) socreate(18,ffff8000211d3ed8,0,29) at socreate+0x84 sys_socket(ffff8000211427e8,ffff8000211d3f68,ffff8000211d3fc0) at sys_socket+0xd8 syscall(ffff8000211d4030) at syscall+0x489 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc8b2cb76b30, count: 11 ddb{1}> trace socreate(18,ffff8000211d3ed8,0,29) at socreate+0x84 sys_socket(ffff8000211427e8,ffff8000211d3f68,ffff8000211d3fc0) at sys_socket+0xd8 syscall(ffff8000211d4030) at syscall+0x489 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc8b2cb76b30, count: -4 ddb{1}>