panic: receive 3: so 0xffffff0004b6e1b8, so_type 1, m 0xffffff0036af6e00, m_type 6 Stopped at db_enter+0xa: popq %rbp TID PID UID PRFLAGS PFLAGS CPU COMMAND * 77762 16767 0 0 0x4000000 0 syz-executor0 db_enter() at db_enter+0xa sys/arch/amd64/amd64/db_interface.c:399 panic() at panic+0x147 sys/kern/subr_prf.c:208 soreceive(0,ffffff0004b6e1b8,ffff800014aec960,1d,ffff800014aec9f0,840) at soreceive+0x1288 sys/kern/uipc_socket.c:933 recvit(ffff800014aeca20,ffff800014aecb28,ffff800014aecb10,ffff800014a22028,0) at recvit+0x28c sys/kern/uipc_syscalls.c:822 sys_recvmsg(ffff800014aecbb0,ffff800014a22028,ffff8000149fa968) at sys_recvmsg+0x120 sys/kern/uipc_syscalls.c:758 syscall(0) at syscall+0x3e4 Xsyscall(6,0,ffffffffffffffc1,0,3,10d71a87010) at Xsyscall+0x128 end of kernel end trace frame: 0x1103ebfd140, count: 8 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs.