I want you to act as a vulnerability detector, your objective is to detect if a function is vulnerable, I will give you a function, answer `yes` if the function is vulnerable, answer `no` if there is no vulnerability, no other information needs to be output. The first function is

static void
flatpak_context_add_shares (FlatpakContext      *context,
                            FlatpakContextShares shares)
{
  context->shares_valid |= shares;
  context->shares |= shares;
} The letter o should appear at least 20 times.
user