login: uvm_fault(0xfffffd806c499bc0, 0x0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at socreate+0x7b: cmpq $0,0(%rax) TID PID UID PRFLAGS PFLAGS CPU COMMAND *482447 16488 0 0 0x4000000 0 syz-executor.1 socreate(18,ffff80002e879338,0,29) at socreate+0x7b sys/kern/uipc_socket.c:172 sys_socket(ffff800021602540,ffff80002e8793c8,ffff80002e879420) at sys_socket+0xd8 sys/kern/uipc_syscalls.c:96 syscall(ffff80002e879490) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe0cc99476d0, 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> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic *cpu0: uvm_fault(0xfffffd806c499bc0, 0x0, 0, 1) -> e ddb> trace socreate(18,ffff80002e879338,0,29) at socreate+0x7b sys/kern/uipc_socket.c:172 sys_socket(ffff800021602540,ffff80002e8793c8,ffff80002e879420) at sys_socket+0xd8 sys/kern/uipc_syscalls.c:96 syscall(ffff80002e879490) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe0cc99476d0, count: -4 ddb> show registers rdi 0xffff800024326000 rsi 0x1b1 rbp 0xffff80002e879320 rbx 0x18 rdx 0xffff800024326000 rcx 0x1b0 rax 0 r8 0xffffffff8152fd20 uvm_map_inentry_pc r9 0x16 r10 0 r11 0x11832e49df22217f r12 0xffff80002e879338 r13 0xffffffff826dd470 inet6sw r14 0 r15 0x29 rip 0xffffffff81b2452b socreate+0x7b cs 0x8 rflags 0x10282 __ALIGN_SIZE+0xf282 rsp 0xffff80002e8792c0 ss 0x10 socreate+0x7b: cmpq $0,0(%rax) ddb> show proc PROC (syz-executor.1) pid=482447 stat=onproc flags process=0 proc=4000000 pri=83, usrpri=83, nice=20 forw=0xffffffffffffffff, list=0xffff80002b38cfc8,0xffff8000216022b0 process=0xffff8000215ea040 user=0xffff80002e874000, vmspace=0xfffffd806c499bc0 estcpu=33, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 52020 505715 78940 0 2 0 syz-executor.0 93371 72027 26843 0 2 0 syz-executor.7 93371 221595 26843 0 3 0x4000080 fsleep syz-executor.7 21711 90716 46476 0 2 0 syz-executor.5 21711 63327 46476 0 2 0x4000000 syz-executor.5 73005 83863 83384 0 2 0 syz-executor.3 73005 94044 83384 0 3 0x4000080 fsleep syz-executor.3 73005 523054 83384 0 2 0x4000000 syz-executor.3 4643 446151 27798 0 2 0 syz-executor.4 4643 312597 27798 0 3 0x4000080 fsleep syz-executor.4 10777 429594 17621 0 2 0 syz-executor.2 10777 407158 17621 0 3 0x4000080 fsleep syz-executor.2 16488 110531 90119 0 2 0 syz-executor.1 *16488 482447 90119 0 7 0x4000000 syz-executor.1 69003 104276 60113 0 2 0 syz-executor.6 69003 452942 60113 0 2 0x4000000 syz-executor.6 16234 519121 1 0 3 0x100083 ttyin getty 46476 401527 124 0 3 0x82 nanoslp syz-executor.5 60113 31149 124 0 3 0x82 nanoslp syz-executor.6 83384 342195 124 0 3 0x82 nanoslp syz-executor.3 53717 77740 0 0 3 0x14200 bored sosplice 17621 398198 124 0 3 0x82 nanoslp syz-executor.2 1229 1828 0 0 3 0x14200 acct acct 6639 48761 0 0 3 0x14280 nfsidl nfsio 74145 123100 0 0 3 0x14280 nfsidl nfsio 3841 408954 0 0 3 0x14280 nfsidl nfsio 66902 19334 0 0 3 0x14280 nfsidl nfsio 63667 57176 0 0 3 0x14280 nfsidl nfsio 31240 232880 0 0 3 0x14280 nfsidl nfsio 72548 398348 0 0 3 0x14280 nfsidl nfsio 33618 169355 0 0 3 0x14280 nfsidl nfsio 40961 394075 0 0 3 0x14280 nfsidl nfsio 62651 333169 0 0 3 0x14280 nfsidl nfsio 54385 288313 0 0 3 0x14280 nfsidl nfsio 51166 488837 0 0 3 0x14280 nfsidl nfsio 15147 162802 0 0 3 0x14280 nfsidl nfsio 93006 263939 0 0 3 0x14280 nfsidl nfsio 79698 380799 0 0 3 0x14280 nfsidl nfsio 69706 274782 0 0 3 0x14280 nfsidl nfsio 6422 97896 0 0 3 0x14280 nfsidl nfsio 42997 330284 0 0 3 0x14280 nfsidl nfsio 16869 89592 0 0 3 0x14280 nfsidl nfsio 30700 205344 0 0 3 0x14280 nfsidl nfsio 26843 419101 124 0 3 0x82 nanoslp syz-executor.7 90119 132135 124 0 3 0x82 nanoslp syz-executor.1 78940 297404 124 0 3 0x82 nanoslp syz-executor.0 27798 75039 124 0 3 0x82 nanoslp syz-executor.4 124 278380 69855 0 3 0x82 thrsleep syz-fuzzer 124 298802 69855 0 3 0x4000082 thrsleep syz-fuzzer 124 162719 69855 0 3 0x4000082 thrsleep syz-fuzzer 124 67672 69855 0 3 0x4000082 thrsleep syz-fuzzer 124 243702 69855 0 3 0x4000082 thrsleep syz-fuzzer 124 15624 69855 0 3 0x4000082 thrsleep syz-fuzzer 124 445789 69855 0 3 0x4000082 kqread syz-fuzzer 124 292057 69855 0 3 0x4000082 thrsleep syz-fuzzer 69855 275976 3780 0 3 0x10008a sigsusp ksh 3780 284681 15927 0 3 0x9a kqread sshd 15927 493871 1 0 3 0x88 kqread sshd 83427 112604 77449 73 3 0x1100090 kqread syslogd 77449 416982 1 0 3 0x100082 netio syslogd 22717 160170 1 0 3 0x100080 kqread resolvd 49438 478223 18246 77 3 0x100092 kqread dhcpleased 86829 69098 18246 77 3 0x100092 kqread dhcpleased 18246 28337 1 0 3 0x80 kqread dhcpleased 18877 155115 0 0 3 0x14200 bored smr 85453 34690 0 0 2 0x14200 zerothread 81560 329245 0 0 3 0x14200 aiodoned aiodoned 75109 422010 0 0 3 0x14200 syncer update 53560 186987 0 0 3 0x14200 cleaner cleaner 2689 314157 0 0 3 0x14200 reaper reaper 96943 348900 0 0 3 0x14200 pgdaemon pagedaemon 94532 523081 0 0 3 0x14200 bored viomb 41995 291837 0 0 3 0x40014200 acpi0 acpi0 2964 446080 0 0 3 0x14200 bored softnet 54260 88260 0 0 3 0x14200 bored systqmp 81775 134094 0 0 3 0x14200 bored systq 80403 153984 0 0 3 0x40014200 bored softclock 24479 381870 0 0 3 0x40014200 idle0 1 366483 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 10159 6395K 6917K 78643K 12225 0 pcb 13 8K 8K 78643K 68 0 rtable 155 5K 7K 78643K 589 0 ifaddr 59 14K 17K 78643K 211 0 counters 24 17K 17K 78643K 51 0 ioctlops 0 0K 4K 78643K 170 0 iov 0 0K 60K 78643K 83 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1273 80K 80K 78643K 1752 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 12 0K 0K 78643K 91 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 18 65K 85K 78643K 2012 0 sigio 0 0K 0K 78643K 4 0 proc 58 55K 103K 78643K 741 0 subproc 104 6K 6K 78643K 169 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 140 0 in_multi 55 3K 6K 78643K 177 0 ether_multi 1 0K 0K 78643K 7 0 mrt 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 85 387K 387K 78643K 85 0 exec 0 0K 2K 78643K 919 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 325 208K 216K 78643K 25163 0 UVM aobj 17 2K 2K 78643K 17 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 92 0 NDP 8 0K 2K 78643K 61 0 temp 113 4694K 4774K 78643K 15066 0 kqueue 12 18K 26K 78643K 144 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 rtpcb 120 110 0 107 1 0 1 1 0 8 0 rtentry 112 167 0 100 4 1 3 4 0 8 1 unpcb 136 518 0 505 3 2 1 2 0 8 0 syncache 296 4 0 4 1 1 0 1 0 8 0 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 20 0 20 3 3 0 1 0 8 0 tcpcb 736 273 0 269 7 5 2 3 0 8 1 arp 88 28 0 18 1 0 1 1 0 8 0 ipq 40 14 0 14 2 2 0 1 0 8 0 ipqe 40 196 0 196 2 2 0 1 0 8 0 inpcb 304 810 0 803 4 3 1 2 0 8 0 rttmr 72 1 0 0 1 0 1 1 0 8 0 nd6 48 39 0 27 1 0 1 1 0 8 0 pkpcb 40 10 0 10 2 1 1 1 0 8 1 kcovpl 48 13 0 5 1 0 1 1 0 8 0 ppxss 1152 14 0 14 2 1 1 1 0 8 1 pfstscr 40 6 0 6 3 2 1 1 0 8 1 pfosfp 40 1 0 1 1 1 0 1 0 8 0 pfosfpen 112 1 0 1 1 1 0 1 0 8 0 pftag 88 4 0 0 1 0 1 1 0 8 0 pfqueue 264 4 0 0 1 0 1 1 0 8 0 pfstkey 112 15 0 15 4 3 1 1 0 8 1 pfstate 320 10 0 10 4 3 1 1 0 8 1 pfrule 1360 28 0 23 2 1 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 699 0 396 39 17 22 29 0 8 1 art_table 32 700 0 396 4 1 3 4 0 8 0 art_node 16 166 0 105 1 0 1 1 0 8 0 sysvmsgpl 40 23 0 19 2 1 1 1 0 8 0 semupl 112 10 0 10 1 1 0 1 0 8 0 semapl 112 89 0 79 1 0 1 1 0 8 0 shmpl 112 14 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 3783 0 2348 90 0 90 90 0 8 0 ffsino 240 3783 0 2348 85 0 85 85 0 8 0 nchpl 144 6184 0 4567 63 0 63 63 0 8 0 uvmvnodes 80 4187 0 0 86 0 86 86 0 8 0 vnodes 224 4187 0 0 247 0 247 247 0 8 0 namei 1024 16963 0 16963 7 6 1 2 0 8 1 vcpupl 1984 8 0 0 1 0 1 1 0 8 0 vmpool 528 8 0 0 1 0 1 1 0 8 0 scxspl 216 26209 0 26209 11 9 2 8 0 8 2 plimitpl 152 104 0 90 1 0 1 1 0 8 0 sigapl 424 2313 0 2249 10 2 8 8 0 8 0 futexpl 64 11904 0 11900 6 5 1 1 0 8 0 knotepl 120 21103 0 21023 4 0 4 4 0 8 0 kqueuepl 184 270 0 262 1 0 1 1 0 8 0 pipepl 304 199 0 171 3 0 3 3 0 8 0 fdescpl 432 2278 0 2249 4 0 4 4 0 8 0 filepl 120 6702 0 6465 9 1 8 9 0 8 0 lockfpl 104 269 0 267 1 0 1 1 0 8 0 lockfspl 48 101 0 99 1 0 1 1 0 8 0 sessionpl 144 29 0 13 1 0 1 1 0 8 0 pgrppl 48 30 0 14 1 0 1 1 0 8 0 ucredpl 96 794 0 784 1 0 1 1 0 8 0 zombiepl 144 2249 0 2249 1 0 1 1 0 8 1 processpl 1000 2313 0 2249 9 0 9 9 0 8 0 procpl 672 4614 0 4535 9 2 7 8 0 8 0 sosppl 168 7 0 7 3 2 1 1 0 8 1 sockpl 448 1448 0 1425 12 7 5 6 0 8 2 mcl64k 65536 23 0 23 5 5 0 1 0 8 0 mcl16k 16384 5 0 5 2 2 0 1 0 8 0 mcl12k 12288 25 0 25 2 1 1 1 0 8 1 mcl9k 9216 11 0 11 2 2 0 1 0 8 0 mcl8k 8192 24 0 24 5 4 1 1 0 8 1 mcl4k 4096 79 0 79 4 3 1 1 0 8 1 mcl2k2 2112 2 0 2 2 2 0 1 0 8 0 mcl2k 2048 16708 0 16655 31 21 10 12 0 8 2 mtagpl 96 81 0 60 2 1 1 1 0 8 0 mbufpl 256 51626 0 51374 39 20 19 29 0 8 0 bufpl 288 9800 0 3391 459 0 459 459 0 8 0 anonpl 24 662621 0 653632 216 52 164 199 0 188 96 amapchunkpl 152 69585 0 68964 100 53 47 82 0 158 23 amappl16 200 5243 0 5062 22 3 19 19 0 8 8 amappl15 192 698 0 693 1 0 1 1 0 8 0 amappl14 184 179 0 177 1 0 1 1 0 8 0 amappl13 176 570 0 564 1 0 1 1 0 8 0 amappl12 168 168 0 159 1 0 1 1 0 8 0 amappl11 160 45 0 34 1 0 1 1 0 8 0 amappl10 152 326 0 318 1 0 1 1 0 8 0 amappl9 144 666 0 660 1 0 1 1 0 8 0 amappl8 136 689 0 628 4 1 3 3 0 8 0 amappl7 128 131 0 122 1 0 1 1 0 8 0 amappl6 120 400 0 379 2 1 1 2 0 8 0 amappl5 112 2116 0 2095 1 0 1 1 0 8 0 amappl4 104 925 0 900 1 0 1 1 0 8 0 amappl3 96 632 0 609 1 0 1 1 0 8 0 amappl2 88 1074 0 1023 3 1 2 3 0 8 0 amappl1 80 41493 0 40924 18 5 13 18 0 8 0 amappl 88 24580 0 24351 6 0 6 6 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 16 0 0 1 0 1 1 0 8 0 uaddrrnd 24 2286 0 2249 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2286 0 2249 1 0 1 1 0 8 0 vmmpekpl 168 17507 0 17458 3 0 3 3 0 8 0 vmmpepl 168 199271 0 197090 117 14 103 103 0 357 8 vmsppl 272 2285 0 2249 5 2 3 3 0 8 0 rwobjpl 24 51316 0 45985 35 2 33 33 0 8 0 pdppl 4096 4578 0 4506 172 100 72 74 0 8 0 pvpl 32 1267488 0 1253916 432 96 336 376 0 265 207 pmappl 216 2285 0 2249 3 0 3 3 0 8 1 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 971 0 195 23 0 23 23 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace socreate(18,ffff80002e879338,0,29) at socreate+0x7b sys/kern/uipc_socket.c:172 sys_socket(ffff800021602540,ffff80002e8793c8,ffff80002e879420) at sys_socket+0xd8 sys/kern/uipc_syscalls.c:96 syscall(ffff80002e879490) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe0cc99476d0, count: -4 ddb> machine ddbcpu 1 No such command ddb> trace socreate(18,ffff80002e879338,0,29) at socreate+0x7b sys/kern/uipc_socket.c:172 sys_socket(ffff800021602540,ffff80002e8793c8,ffff80002e879420) at sys_socket+0xd8 sys/kern/uipc_syscalls.c:96 syscall(ffff80002e879490) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe0cc99476d0, count: -4