uvm_fault(0xfffffd8070dc39a0, 0x0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at _copyinstr+0x58: lodsb (%rsi) TID PID UID PRFLAGS PFLAGS CPU COMMAND *300861 5118 0 0x2000 0x4000000 0K syz-executor 486500 73100 0 0x2 0 1 syz-executor _copyinstr() at _copyinstr+0x58 sys_unveil(ffff80003c436f98,ffff80002a325fa0,ffff80002a325ef0) at sys_unveil+0x152 sys/kern/vfs_syscalls.c:982 syscall(ffff80002a325fa0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a325fa0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:742 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x60df9ffcba0, 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: uvm_fault(0xfffffd8070dc39a0, 0x0, 0, 1) -> e ddb{0}> trace _copyinstr() at _copyinstr+0x58 sys_unveil(ffff80003c436f98,ffff80002a325fa0,ffff80002a325ef0) at sys_unveil+0x152 sys/kern/vfs_syscalls.c:982 syscall(ffff80002a325fa0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a325fa0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:742 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x60df9ffcba0, count: -4 ddb{0}> show registers rdi 0xffff80002a25f000 rsi 0 rbp 0xffff80002a325da0 rbx 0xffff80002a325fa0 rdx 0x400 rcx 0xffff80002a321000 rax 0x7f7fffffc000 r8 0x400 r9 0xffff80002a325d40 r10 0xe6a17df037b14b70 r11 0xffffffff8244c390 copystr_fault r12 0xffff80002a25f000 r13 0xffff80002a325e68 r14 0x400 r15 0 rip 0xffffffff8244c368 _copyinstr+0x58 cs 0x8 rflags 0x50206 acpi_pdirpa+0x3c077 rsp 0xffff80002a325d28 ss 0 _copyinstr+0x58: lodsb (%rsi) ddb{0}> show proc PROC (syz-executor) tid=300861 pid=5118 tcnt=2 stat=onproc flags process=2000 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003c436f98 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c437c68,0xffffffff838da338 process=0xffff8000fffeb570 user=0xffff80002a321000, vmspace=0xfffffd8070dc39a0 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 5118 191032 42119 0 4 0x82000 syz-executor * 5118 300861 42119 0 7 0x4002000 syz-executor 97912 464746 46054 0 2 0 syz-executor 97912 312368 46054 0 3 0x4000080 sbwait syz-executor 97860 401335 40943 0 2 0xc80 syz-executor 97860 131646 40943 0 3 0x4000080 kqread syz-executor 97860 181001 40943 0 3 0x4000080 fsleep syz-executor 71483 191493 30 0 3 0x3000 suspend syz-executor 71483 269855 30 0 2 0x4081000 syz-executor 71483 40772 30 0 3 0x4081000 inode syz-executor 71483 374976 30 0 3 0x4081000 inode syz-executor 44962 130765 73100 0 3 0x3000 suspend syz-executor 44962 328718 73100 0 2 0x4081000 syz-executor 73100 486500 10623 0 7 0x2 syz-executor 67204 222001 1 0 3 0x100083 ttyin getty 42119 24924 10623 0 3 0x82 nanoslp syz-executor 30 237172 10623 0 3 0x82 nanoslp syz-executor 20794 352070 10623 0 3 0x82 nanoslp syz-executor 973 151911 0 0 3 0x14200 bored sosplice 46054 299212 10623 0 2 0xc82 syz-executor 23289 141866 10623 0 2 0xc82 syz-executor 40943 51107 10623 0 3 0x82 nanoslp syz-executor 97981 479897 10623 0 3 0x82 nanoslp syz-executor 10623 289271 27363 0 3 0x82 kqread syz-executor 27363 239303 77803 0 3 0x10008a sigsusp ksh 77803 518692 69319 0 3 0x98 kqread sshd-session 69319 517406 25648 0 3 0x92 kqread sshd-session 25648 468757 1 0 3 0x88 kqread sshd 48962 403223 1448 74 3 0x1100092 bpf pflogd 1448 68370 1 0 3 0x80 sbwait pflogd 3599 157690 80504 73 3 0x1100090 kqread syslogd 80504 166892 1 0 3 0x100082 sbwait syslogd 63915 513274 1 0 3 0x100080 kqread resolvd 18902 254849 0 0 3 0x14200 bored smr 8533 201389 0 0 3 0x14200 pgzero zerothread 42791 439644 0 0 3 0x14200 aiodoned aiodoned 31227 395029 0 0 3 0x14200 syncer update 5209 10772 0 0 3 0x14200 cleaner cleaner 40300 243116 0 0 3 0x14200 reaper reaper 50081 330055 0 0 3 0x14200 pgdaemon pagedaemon 15111 437874 0 0 3 0x14200 bored viomb 32893 97530 0 0 3 0x40014200 acpi0 acpi0 13799 448950 0 0 3 0x40014200 idle1 51054 120215 0 0 3 0x14200 bored softnet3 96408 164492 0 0 3 0x14200 bored softnet2 79433 456875 0 0 3 0x14200 bored softnet1 47917 7569 0 0 3 0x14200 bored softnet0 46159 287591 0 0 3 0x14200 bored systqmp 14027 103734 0 0 3 0x14200 bored systq 49546 187211 0 0 3 0x14200 tmoslp softclockmp 66636 427817 0 0 2 0x40014200 softclock 16439 416255 0 0 3 0x40014200 idle0 1 274177 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 5118 (syz-executor) thread 0xffff80003c436f98 (300861) Process 71483 (syz-executor) thread 0xffff80003c4534c0 (269855) Process 71483 (syz-executor) thread 0xffff8000ffff1218 (40772) Process 44962 (syz-executor) thread 0xffff80003c452560 (328718) ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10260 11104K 15427K 166960K 15461 0 pcb 17 18K 20K 166960K 1244 0 rtable 170 11K 11K 166960K 957 0 pf 47 20K 22K 166960K 272 0 ifaddr 39 6K 7K 166960K 189 0 ifgroup 73 3K 3K 166960K 336 0 sysctl 4 1K 9K 166960K 26 0 counters 74 37K 38K 166960K 348 0 ioctlops 0 0K 4K 166960K 2248 0 iov 0 0K 24K 166960K 231 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1490 94K 94K 166960K 4228 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 53 0 VM map 2 1K 1K 166960K 2 0 sem 28 28K 28K 166960K 221 0 dirhash 12 2K 2K 166960K 108 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 240K 166960K 3646 0 sigio 0 0K 0K 166960K 128 0 proc 66 67K 128K 166960K 1221 0 subproc 72 4K 4K 166960K 136 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 563 0 in_multi 52 3K 7K 166960K 289 0 ether_multi 1 0K 0K 166960K 22 0 mrt 1 0K 0K 166960K 23 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 265 1182K 1182K 166960K 265 0 exec 0 0K 1K 166960K 1228 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 15 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 229 135K 170K 166960K 34528 0 UVM aobj 123 7K 7K 166960K 127 0 pinsyscall 37 74K 103K 166960K 4962 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 180 0 NDP 15 0K 2K 166960K 132 0 temp 81 8696K 8944K 166960K 154289 0 kqueue 8 14K 33K 166960K 723 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 26 0 0 1 0 1 1 0 8 0 rtpcb 120 272 0 270 2 1 1 2 0 8 0 rtentry 176 273 0 212 6 1 5 6 0 8 0 unpcb 144 2438 0 2419 19 15 4 4 0 8 3 syncache 336 14 0 14 6 5 1 1 0 8 1 tcpqe 32 7 0 7 4 4 0 1 0 8 0 tcpcb 736 1364 0 1357 27 20 7 12 0 8 5 arp 128 42 0 32 1 0 1 1 0 8 0 ipq 40 1 0 1 1 1 0 1 0 8 0 ipqe 40 3 0 3 1 1 0 1 0 8 0 inpcb 328 4966 0 4958 49 39 10 15 0 8 8 nd6 144 65 0 54 1 0 1 1 0 8 0 pkpcb 40 47 0 47 6 5 1 1 0 8 1 kcovpl 48 15 0 7 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 1 0 1 0 8 0 ppxss 1192 101 0 101 4 3 1 1 0 8 1 pppxif 1504 15 0 15 5 4 1 1 0 8 1 pfstscr 40 1 0 1 1 1 0 1 0 8 0 pffrag 232 22 0 10 1 0 1 1 0 482 0 pffrnode 88 20 0 9 1 0 1 1 0 8 0 pffrent 40 47 0 34 1 0 1 1 0 8 0 pfosfp 40 1429 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1429 0 714 21 0 21 21 0 8 0 pfrktable 1344 6 0 4 2 1 1 1 0 8 0 pfanchor 1288 2 0 1 2 1 1 1 0 8 0 pftag 88 1 0 1 1 1 0 1 0 8 0 pfqueue 320 1 0 1 1 1 0 1 0 8 0 pfstitem 24 187 0 78 1 0 1 1 0 8 0 pfstkey 128 188 0 79 4 0 4 4 0 8 0 pfstate 384 187 0 79 11 0 11 11 0 8 0 pfrule 1344 29 0 21 2 1 1 2 0 8 0 rttmr 136 5 0 5 4 4 0 1 0 8 0 art_heap8 4096 6 0 1 6 0 6 6 0 8 1 art_heap4 256 1133 0 863 32 13 19 29 0 8 0 art_table 32 1139 0 864 4 0 4 4 0 8 0 art_node 16 265 0 216 1 0 1 1 0 8 0 sysvmsgpl 40 12 0 7 2 1 1 1 0 8 0 semupl 112 3 0 3 3 3 0 1 0 8 0 semapl 112 213 0 187 1 0 1 1 0 8 0 shmpl 112 124 0 4 4 0 4 4 0 8 0 dirhash 1024 82 0 65 3 0 3 3 0 8 0 dino2pl 256 8237 0 6717 96 0 96 96 0 8 0 ffsino 288 8237 0 6717 110 0 110 110 0 8 0 nchpl 144 13349 0 11627 65 0 65 65 0 8 0 rtmask 32 12 0 12 6 6 0 1 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 48744 0 48741 6 5 1 2 0 8 0 percpumem 16 189 0 137 1 0 1 1 0 8 0 pfiaddrpl 120 2 0 1 2 1 1 1 0 8 0 kstatmem 264 208 0 172 3 0 3 3 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 151 0 151 4 3 1 1 0 8 1 scxspl 216 98072 0 98072 16 14 2 8 1 8 2 plimitpl 152 921 0 903 1 0 1 1 0 8 0 sigapl 424 3940 0 3892 10 3 7 9 0 8 0 knotepl 120 689 0 0 20 0 20 20 0 8 0 kqueuepl 224 1838 0 1829 23 18 5 7 0 8 4 pipepl 336 665 0 637 10 2 8 8 0 8 5 fdescpl 520 3895 0 3866 3 0 3 3 0 8 0 filepl 160 28908 0 28680 45 22 23 23 0 8 7 lockfpl 104 2076 0 2074 4 3 1 2 0 8 0 lockfspl 48 695 0 693 1 0 1 1 0 8 0 sessionpl 144 43 0 35 1 0 1 1 0 8 0 pgrppl 48 101 0 85 1 0 1 1 0 8 0 ucredpl 104 4969 0 4959 1 0 1 1 0 8 0 zombiepl 144 3896 0 3892 1 0 1 1 0 8 0 processpl 1240 3940 0 3892 6 0 6 6 0 8 0 procpl 656 9804 0 9748 11 3 8 9 0 8 0 srpgc 96 28 0 28 7 7 0 1 0 8 0 sosppl 168 18 0 18 7 6 1 1 0 8 1 sockpl 728 7850 0 7821 64 52 12 19 0 8 8 mcl64k 65536 7 0 0 1 0 1 1 0 8 0 mcl16k 16384 5 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 181 0 0 18 0 18 18 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 78 0 0 8 1 7 7 0 8 0 mtagpl 96 52 0 0 2 0 2 2 0 8 0 mbufpl 256 1228 0 0 74 0 74 74 0 8 0 bufpl 280 41390 0 35248 439 0 439 439 0 8 0 anonpl 32 15159 0 0 123 0 123 123 0 246 0 amapchunkpl 152 128249 0 127629 64 30 34 36 0 158 8 amappl16 200 17874 0 17506 148 128 20 38 0 8 0 amappl15 192 8 0 8 2 2 0 1 0 8 0 amappl14 184 156 0 146 1 0 1 1 0 8 0 amappl13 176 20 0 20 1 1 0 1 0 8 0 amappl12 168 4678 0 4649 3 1 2 2 0 8 0 amappl11 160 57 0 48 1 0 1 1 0 8 0 amappl10 152 12 0 11 2 1 1 1 0 8 0 amappl9 144 250 0 249 2 1 1 1 0 8 0 amappl8 136 44 0 41 1 0 1 1 0 8 0 amappl7 128 144 0 134 1 0 1 1 0 8 0 amappl6 120 256 0 252 1 0 1 1 0 8 0 amappl5 112 155 0 148 1 0 1 1 0 8 0 amappl4 104 400 0 380 1 0 1 1 0 8 0 amappl3 96 24772 0 24663 4 0 4 4 0 8 0 amappl2 88 845 0 798 2 0 2 2 0 8 0 amappl1 80 25195 0 24684 15 1 14 15 0 8 0 amappl 88 32966 0 32793 5 0 5 5 0 92 0 dma65536 65536 1 0 1 1 1 0 1 0 8 0 dma16384 16384 1 0 1 1 1 0 1 0 8 0 dma8192 8192 1 0 1 1 1 0 1 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma2048 2048 1 0 1 1 1 0 1 0 8 0 dma1024 1024 2 0 1 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 258 0 258 6 5 1 1 0 8 1 dma64 64 7 0 7 2 2 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 72 126 0 4 3 0 3 3 0 8 0 uaddrrnd 24 3895 0 3866 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3895 0 3866 1 0 1 1 0 8 0 vmmpekpl 168 31948 0 31897 3 0 3 3 0 8 0 vmmpepl 168 253185 0 251072 135 43 92 121 0 357 0 vmsppl 480 3894 0 3866 9 4 5 5 0 8 0 rwobjpl 72 73664 0 66464 138 4 134 135 0 8 0 pdppl 4096 7798 0 7732 126 58 68 86 0 8 2 pvpl 32 23660 0 0 191 0 191 191 0 265 0 pmappl 256 3894 0 3866 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 536 0 111 13 0 13 13 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace _copyinstr() at _copyinstr+0x58 sys_unveil(ffff80003c436f98,ffff80002a325fa0,ffff80002a325ef0) at sys_unveil+0x152 sys/kern/vfs_syscalls.c:982 syscall(ffff80002a325fa0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a325fa0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:742 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x60df9ffcba0, count: -4 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299ddff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff838d9040) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff838d9040) at __mp_lock+0x192 sys/kern/kern_lock.c:165 syscall(ffff80003c43f440) at syscall+0xae6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c43f440) at syscall+0xae6 sys/arch/amd64/amd64/trap.c:742 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x738104f73d10, count: 9 ddb{1}> trace x86_ipi_db(ffff8000299ddff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff838d9040) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff838d9040) at __mp_lock+0x192 sys/kern/kern_lock.c:165 syscall(ffff80003c43f440) at syscall+0xae6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c43f440) at syscall+0xae6 sys/arch/amd64/amd64/trap.c:742 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x738104f73d10, count: -6