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Bug#524720: libc-bin: /sbin/ldconfig SEGFAULTS with "special" /var/cache/ldconfig/aux-cache



Package: libc-bin
Version: 2.10.2-6
Severity: normal

Hi, 

today the installation of some packages by dpkg reported SEGFAULTS by
control files. I tried to purge all newly installed packages but this
did also fail. Neither purging nor reinstalling a package worked
anymore. Finally I figured out that /sbin/ldconfig seems to be the
responsible candidate for the SEGFAULT. I did some strace and found
that the segfault happens after trying to open:
/var/cache/ldconfig/aux-cache. 

I renamed /var/cache/ldconfig/aux-cache, after that anything works as
usual. Find attached the SEGFAULTing /var/cache/ldconfig/aux-cache as
well as the newly generated one.

Regards,

	Andi 

from dmesg:

[...]
[ 9485.701742] ldconfig[16847]: segfault at 7f46d9b48850 ip 000000000041b4c1 sp 00007fffbfd16fb8 error 4 in ldconfig[400000+ae000]
[ 9485.776960] ldconfig[16849]: segfault at 7f3a5cfb0850 ip 000000000041b4c1 sp 00007fff9fe9bf78 error 4 in ldconfig[400000+ae000]
[ 9860.930247] ldconfig[17481]: segfault at 7f7696436850 ip 000000000041b4c1 sp 00007fffa6c0b9a8 error 4 in ldconfig[400000+ae000]
[...]

-- System Information:
Debian Release: squeeze/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.32-nouveau.git (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

-- no debconf information

Attachment: aux-cache
Description: Binary data

Attachment: aux-cache_segfault
Description: Binary data


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