Comment 2 for bug 841384

StacktraceTop:
 __libc_message (do_abort=2, fmt=0x7f118c24a0d8 "*** glibc detected *** %s: %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:189
 malloc_printerr (action=3, str=0x7f118c247167 "malloc(): memory corruption", ptr=<optimized out>) at malloc.c:6283
 _int_malloc (av=0x7f118c4851c0, bytes=115) at malloc.c:4396
 __GI___libc_malloc (bytes=115) at malloc.c:3660
 GetUPNPUrls () from /tmp/tmpN31TG7/usr/lib/libminiupnpc.so.5