const std = @import("std");
const warn = std.debug.warn;

pub fn main() anyerror!void {
   const allocator = std.heap.c_allocator;
   var b: []u8 = undefined;
   { 
      b = try allocator.alloc(u8, 2);
      std.mem.set(u8, b, 0);
      defer allocator.free(b);
   }
   warn("uaf: {x} {x:0>2} {x:0>2}\n",.{&b, b[0],b[1]});
}