panic: Caught invalid memory access at ffff8000017e33b0 size 104 op 1
Stopped at      db_enter+0x17:  popq    %rbp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
 475211  39935     -1        0x10          0    0  syz-executor
*415093   9326      0        0x10  0x4000000    1K syz-executor
db_enter() at db_enter+0x17 sys/arch/amd64/amd64/db_interface.c:457
panic(ffffffff8463360e) at panic+0x270 sys/kern/subr_prf.c:198
kasan_memcpy(ffff8000017e33b0,ffff800001d932b8,68) at kasan_memcpy+0x1ec
sysctl_sysvipc(ffff80002995b768,1,200000000040,ffff80002995b740) at sysctl_sysvipc+0x422 sys/kern/kern_sysctl.c:2777
kern_sysctl_dirs(33,ffff80002995b768,1,200000000040,ffff80002995b740,0,1,1ffff0000532b664) at kern_sysctl_dirs+0x407 sys/kern/kern_sysctl.c:445
kern_sysctl(ffff80002995b764,2,200000000040,ffff80002995b740,0,0,ffff80002995b9b0) at kern_sysctl+0x1ce sys/kern/kern_sysctl.c:529
sys_sysctl(ffff800029922a70,ffff80002995b9b0,ffff80002995b920) at sys_sysctl+0x54f sys/kern/kern_sysctl.c:309
syscall(ffff80002995b9b0) at syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002995b9b0) at syscall+0x1089 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x79ca89b440, count: 6
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: Caught invalid memory access at ffff8000017e33b0 size 104 op 1
ddb{1}> trace
db_enter() at db_enter+0x17 sys/arch/amd64/amd64/db_interface.c:457
panic(ffffffff8463360e) at panic+0x270 sys/kern/subr_prf.c:198
kasan_memcpy(ffff8000017e33b0,ffff800001d932b8,68) at kasan_memcpy+0x1ec
sysctl_sysvipc(ffff80002995b768,1,200000000040,ffff80002995b740) at sysctl_sysvipc+0x422 sys/kern/kern_sysctl.c:2777
kern_sysctl_dirs(33,ffff80002995b768,1,200000000040,ffff80002995b740,0,1,1ffff0000532b664) at kern_sysctl_dirs+0x407 sys/kern/kern_sysctl.c:445
kern_sysctl(ffff80002995b764,2,200000000040,ffff80002995b740,0,0,ffff80002995b9b0) at kern_sysctl+0x1ce sys/kern/kern_sysctl.c:529
sys_sysctl(ffff800029922a70,ffff80002995b9b0,ffff80002995b920) at sys_sysctl+0x54f sys/kern/kern_sysctl.c:309
syscall(ffff80002995b9b0) at syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002995b9b0) at syscall+0x1089 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x79ca89b440, count: -9
ddb{1}> show registers
rdi                                0
rsi                              0x1
rbp               0xffff80002995af70
rbx               0xffff80002995afe0
rdx                                0
rcx               0xffff800028ff3ff0
rax                                0
r8                 0x101010101010101
r9                0x8080808080808080
r10               0xffff80002995ad58
r11               0xffffffff82eaa450    x86_bus_space_io_read_1
r12               0xffffffff8463360e    .str.31+0x9cb8e
r13               0xffff800028ff4c08
r14               0xffff800028ff4e07
r15                              0x1
rip               0xffffffff8309ec97    db_enter+0x17
cs                               0x8
rflags                         0x246
rsp               0xffff80002995af70
ss                              0x10
db_enter+0x17:  popq    %rbp
ddb{1}>