#1129068 mpg123 SEGV in JackShmReadWritePtr::~JackShmReadWritePtr

Package:
mpg123
Source:
mpg123
Description:
MPEG layer 1/2/3 audio player
Submitter:
Alison Chaiken
Date:
2026-02-27 14:59:01 UTC
Severity:
normal
#1129068#5
Date:
2026-02-26 14:45:13 UTC
From:
To:
Dear Maintainer,

I tried to play an MP3 audio file with Firefox.  There was no sound, so I
downloaded the file and tried with mpg123 and vlc, still with no sound.  I
checked the systemsettings and saw that there were no longer any sound-output
devices.  I also found an mpg123 core file.  The related lines from syslog are
below.

2026-02-26T15:24:17.177677+01:00 remerge kernel: mpg123[1472058]: segfault at 7f3cd4be53a0 ip 00007f3cd4be53a0 sp 00007ffd983f41b8 error 14 likely on CPU 4 (core 0, socket 0)
2026-02-26T15:24:17.177688+01:00 remerge kernel: Code: Unable to access opcode bytes at 0x7f3cd4be5376.
2026-02-26T15:24:17.180818+01:00 remerge systemd-coredump[1472061]: Process 1472058 (mpg123) of user 1000 terminated abnormally with signal 11/SEGV, processing...

The output suggests that the problem could be in jack rather than mpg123.    I
will send a tarball with the MP3 file, the syslog, the core file and the CLI
output.

Thanks for your hard work on Debian,
Alison Chaiken
#1129068#10
Date:
2026-02-26 16:22:59 UTC
From:
To:
See attached for further info promised in the original bug report.

---
Alison Chaiken                   alison@she-devel.com
https://she-devel.com
"Human progress never rolls in on wheels of inevitability." -- Martin
Luther King, "Letter from Birmingham Jail"
#1129068#15
Date:
2026-02-27 14:55:13 UTC
From:
To:
After a reboot, the problem does not repeat with the same file.

Thanks,
Alison

---
Alison Chaiken                   alison@she-devel.com
https://she-devel.com
"Long-term thinking isn't about having all the answers, but about asking
better questions." -- https://long-now.org