Bug#672860: libnspr4-0d: SIGSEGV in pt_PostNotifyToCvar

[Sebastian Ramacher]

Package: libnspr4-0d
Version: 4.9-1
Severity: normal

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Hi,

with icedove 10.0.4-1 and enigmail 2:1.4.1-2 I can observe the following SIGSEGV
in libnspr4-0d while opening signed mails:

Program received signal SIGSEGV, Segmentation fault.
(gdb) bt
#0  pt_PostNotifyToCvar (cvar=0x0, broadcast=0) at ptsynch.c:312
#1  0x00007fee2ac91aeb in PR_NotifyCondVar (cvar=<optimized out>) at ptsynch.c:445
#2  0x00007fee2ac99c3f in WaitPidDaemonThread (unused=<optimized out>) at uxproces.c:690
#3  0x00007fee2ac97283 in _pt_root (arg=0x7fedf7d8c460) at ptthread.c:187
#4  0x00007fee3110eb50 in start_thread (arg=<optimized out>) at pthread_create.c:304
#5  0x00007fee30e599dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

This segfault occurs randomly. Sometimes I'm able to view hundreds of signed
mails and sometimes it crashes after viewing ten.

This bug might be related to the upstream bug at [1].

I wasn't able to reproduce this bug with a fresh profile and it doesn't occur if
enigmail is disabled. If you think this a bug in icedove or enigmail, please
reassign it.

If you need more info please let me know. I have saved the core dump.

Kind regards

[1] https://bugzilla.mozilla.org/show_bug.cgi?id=335303

- -- System Information:
Debian Release: wheezy/sid
  APT prefers unstable
  APT policy: (650, 'unstable'), (601, 'testing'), (600, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 3.2.0-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages libnspr4-0d:amd64 depends on:
ii  libc6              2.13-32
ii  multiarch-support  2.13-32

libnspr4-0d:amd64 recommends no packages.

libnspr4-0d:amd64 suggests no packages.

- -- no debconf information

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