uvm_fault(0xfffffd8008716730, 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 427382 41751 0 0 0 0 syz-executor.7 *255347 41751 0 0 0x4000000 1K syz-executor.7 socreate(18,ffff80002ab0da58,0,29) at socreate+0x84 sys/kern/uipc_socket.c:172 sys_socket(ffff80002467e7e8,ffff80002ab0dae8,ffff80002ab0db40) at sys_socket+0xd8 sys/kern/uipc_syscalls.c:96 syscall(ffff80002ab0dbb0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002ab0dbb0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x57669f4d7f0, 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.