According to the CUPS upstream bug report http://www.cups.org/str.php?L3787
this is a problem of libpng. Mike Sweet, the author of CUPS recommends filing an upstream bug in libpng, with the Valgrind results which are attched to the CUPS upstream bug. ** Package changed: cups (Ubuntu) => libpng (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/710881 Title: cups: Test Page /usr/lib/cups/filter/bannertops failed -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs