Arithmetic exception due to bad denom

[Chua Zheng Leong]

Was doing probabilistic fuzzing on TiMidity++ and got a divide trap.

1.
Description: Ubuntu 14.04.1 LTS
Release: 14.04

2.
timidity:
  Installed: 2.13.2-40.2
  Candidate: 2.13.2-40.2
  Version table:
 *** 2.13.2-40.2 0
        500 http://sg.archive.ubuntu.com/ubuntu/ trusty/universe amd64 Packages
        100 /var/lib/dpkg/status

3.
Graceful exit.

4.
SIGFPE (-8)

I've recompiled TiMidity++ for the symbols...

(gdb) r ../crash_midi_archive/crash1 -Ow -o /dev/null
Starting program: /usr/local/bin/timidity ../crash_midi_archive/crash1 -Ow -o /dev/null
Playing ../crash_midi_archive/crash1
MIDI file: ../crash_midi_archive/crash1
Format: 1 Tracks: 2 Divisions: 5872

Program received signal SIGFPE, Arithmetic exception.
0x00000000005bdfe2 in read_midi_file () at readmidi.c:4594
4594 at += current_file_info->divisions * 4 / denom;
(gdb) bt
#0 0x00000000005bdfe2 in read_midi_file () at readmidi.c:4594
#1 0x000000000056a88d in play_midi_file ()
#2 0x000000000056ea51 in dumb_pass_playing_list ()
#3 0x000000000040c7b6 in main () at timidity.c:5655

[Daniel van Vugt (vanvugt)]

Looks like the Debian fix was released in cosmic.