Public bug reported: 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 ** Affects: timidity (Ubuntu) Importance: Undecided Status: New ** Attachment added: "Sample file that produces SIGFPE" https://bugs.launchpad.net/bugs/1443443/+attachment/4373909/+files/crash1 ** Description changed: + Was testing my fuzzer 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 + 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. + 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 ** Description changed: - Was testing my fuzzer on TiMidity++ and got a divide trap. + 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 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1443443 Title: Arithmetic exception due to bad denom To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/timidity/+bug/1443443/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
