Hi, Please find my bug report for ImageMagick convert utility below and let me know if you need more information.
I found an image file using a Google search where Valgrind reports multiple Invalid Reads of size 4. I used a 32-bit Intel(R) Core(TM)2 Duo CPU T7250 @ 2.00GHz. OS: Linux debian 2.6.18-4-486 Convert Version: ImageMagick 6.4.2 Valgrind Version: valgrind-3.3.1 To reproduce: wget http://www.pittsburghpetals.com/images/orchid.gif valgrind convert orchid.gif orchid.png The following is one of the Invalid Read output from Valgrind: ==10219== Memcheck, a memory error detector. ==10219== Copyright (C) 2002-2007, and GNU GPL'd, by Julian Seward et al. ==10219== Using LibVEX rev 1854, a library for dynamic binary translation. ==10219== Copyright (C) 2004-2007, and GNU GPL'd, by OpenWorks LLP. ==10219== Using valgrind-3.3.1, a dynamic binary instrumentation framework. ==10219== Copyright (C) 2000-2007, and GNU GPL'd, by Julian Seward et al. ==10219== For more details, rerun with: -v ==10219== ==10219== Invalid read of size 4 ==10219== Stack hash: 1645863759 ==10219== at 0x4010C81: (within /lib/ld-2.3.6.so) ==10219== by 0x43AA46F: (within /lib/tls/i686/cmov/libc-2.3.6.so) ==10219== by 0x400B44E: (within /lib/ld-2.3.6.so) ==10219== by 0x43A9EDE: _dl_open (in /lib/tls/i686/cmov/libc-2.3.6.so) ==10219== by 0x4281D8D: (within /lib/tls/i686/cmov/libdl-2.3.6.so) ==10219== by 0x400B44E: (within /lib/ld-2.3.6.so) ==10219== by 0x428242C: (within /lib/tls/i686/cmov/libdl-2.3.6.so) ==10219== by 0x4281D20: dlopen (in /lib/tls/i686/cmov/libdl-2.3.6.so) ==10219== by 0x414A7A4: vm_open (dlopen.c:201) ==10219== by 0x4148A69: tryall_dlopen (ltdl.c:429) ==10219== by 0x414961C: try_dlopen (ltdl.c:527) ==10219== by 0x41499F3: lt_dlopenadvise (ltdl.c:1604) The entire Valgrind output and a copy of orchid.gif can be downloaded from the given link, http://www.cs.berkeley.edu/~thiennga/convert_test_case.tar.gz This bug was found as part of the SUPERB-TRUST 2008 project; see http://www.truststc.org/superb/ Best Regards, Nga Chung _______________________________________________ Magick-bugs mailing list [email protected] http://studio.imagemagick.org/mailman/listinfo/magick-bugs
