small_smb_init(int smb_command, int wct, struct cifs_tcon *tcon,
		void **request_buf)
{
	int rc;

	rc = cifs_reconnect_tcon(tcon, smb_command);
	if (rc)
		return rc;

	*request_buf = cifs_small_buf_get();
	if (*request_buf == NULL) {
		/* BB should we add a retry in here if not a writepage? */
		return -ENOMEM;
	}

	header_assemble((struct smb_hdr *) *request_buf, smb_command,
			tcon, wct);

	if (tcon != NULL)
		cifs_stats_inc(&tcon->num_smbs_sent);

	return 0;
}

This weakness involves numeric computation errors, such as integer overflows, underflows, or precision losses, which can lead to miscalculations and exploitable behaviors in software.