hi,
I am using linux mint 13, and i am also being affected by this libreoffice bug. I hope this can be some help, here is a log from my kernel log.
Jun 2 22:36:08 john-K53E kernel: [ 947.278850] soffice.bin[2135]: segfault at 7f5913bfeef0 ip 00007f5913bfeef0 sp 00007fff50101228 error 14
Jun 2 22:36:46 john-K53E kernel: [
985.238492] soffice.bin[3253]: segfault at 646959b0 ip 00007f54933898d3 sp 00007f547338e960 error 4 in libc-2.15.so[7f549334e000+1b3000]