lib/strbuf.c:btp_strbuf_grow() does not guard against integer overflow. As a result, the comment is not necessarily correct. See <http://docs.fedoraproject.org/en-US/Fedora_Security_Team//html/Defensive_Coding/chap-Defensive_Coding-C.html> for some advice in this area.
This bug appears to have been reported against 'rawhide' during the Fedora 20 development cycle. Changing version to '20'. More information and reason for this action is here: https://fedoraproject.org/wiki/BugZappers/HouseKeeping/Fedora20
Package btparser has been retired from Fedora. The issue for satyr, its replacement, is tracked in bug #1034869.