static int apparmor_file_open(struct file *file, const struct cred *cred)
{
	struct aa_file_cxt *fcxt = file->f_security;
	struct aa_profile *profile;
	int error = 0;

	if (!mediated_filesystem(file->f_path.dentry))
		return 0;

	/* If in exec, permission is handled by bprm hooks.
	 * Cache permissions granted by the previous exec check, with
	 * implicit read and executable mmap which are required to
	 * actually execute the image.
	 */
	if (current->in_execve) {
		fcxt->allow = MAY_EXEC | MAY_READ | AA_EXEC_MMAP;
		return 0;
	}

	profile = aa_cred_profile(cred);
	if (!unconfined(profile)) {
		struct inode *inode = file_inode(file);
		struct path_cond cond = { inode->i_uid, inode->i_mode };

		error = aa_path_perm(OP_OPEN, profile, &file->f_path, 0,
				     aa_map_file_to_perms(file), &cond);
		/* todo cache full allowed permissions set and state */
		fcxt->allow = aa_map_file_to_perms(file);
	}

	return error;
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.