Application that crashed: polkit-kde-manager
Version of the application: 0.2
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-11-generic x86_64
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
Not doing anything to trigger it, it just happens every few minutes all on its own.

 -- Backtrace:
Application: PolicyKit-KDE (polkit-kde-manager), signal: Aborted
[KCrash Handler]
#5  0x00007f55268f64b5 in *__GI_raise (sig=<value optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#6  0x00007f55268f9f50 in *__GI_abort () at abort.c:92
#7  0x00007f552692ec97 in __libc_message (do_abort=<value optimized out>, fmt=<value optimized out>) at ../sysdeps/unix/sysv/linux/libc_fatal.c:189
#8  0x00007f5526938dd6 in malloc_printerr (action=3, str=0x7f55269fa6a8 "double free or corruption (fasttop)", ptr=<value optimized out>) at malloc.c:6217
#9  0x00007f552693d70c in *__GI___libc_free (mem=<value optimized out>) at malloc.c:3716
#10 0x00007f5528634056 in PolkitQt::Context::Private::init() () from /usr/lib/libpolkit-qt-core.so.0
#11 0x00007f5528635b2d in PolkitQt::Context::hasError() const () from /usr/lib/libpolkit-qt-core.so.0
#12 0x000000000040ffce in _start ()

Reported using DrKonqi