Public bug reported:
When compiling a program with clang and MemorySanitizer you get the
following:
Uninitialized bytes in __interceptor_strcmp at offset 0 inside [0x60800000ded8,
2)
==10413== WARNING: MemorySanitizer: use-of-uninitialized-value
#0 0x7fdfc0c6575d in QMetaType::registerType(char const*, void (*)(void*),
void* (*)(void const*)) (/usr/lib/x86_64-linux-gnu/libQtCore.so.4+0x18975d)
#1 0x7fdfc1178e4d in _init
(/usr/lib/x86_64-linux-gnu/libQtGui.so.4+0x1b7e4d)
#2 0x7fdfc2496139 in call_init /build/buildd/eglibc-2.19/elf/dl-init.c:78
#3 0x7fdfc2496222 in call_init /build/buildd/eglibc-2.19/elf/dl-init.c:36
#4 0x7fdfc2496222 in _dl_init /build/buildd/eglibc-2.19/elf/dl-init.c:126
#5 0x7fdfc2487309 (/lib64/ld-linux-x86-64.so.2+0x1309)
Uninitialized value was created by a heap allocation
#0 0x7fdfc3845e23 in __interceptor_malloc
/home/ben/development/llvm/3.5/final/llvm.src/projects/compiler-rt/lib/msan/msan_interceptors.cc:835:3
#1 0x7fdfc0b591bf in QByteArray::realloc(int)
(/usr/lib/x86_64-linux-gnu/libQtCore.so.4+0x7d1bf)
#2 0x7fff5f7611cf (<unknown module>)
SUMMARY: MemorySanitizer: use-of-uninitialized-value ??:0
QMetaType::registerType(char const*, void (*)(void*), void* (*)(void
const*))
I used the official clang 3.5 ubuntu 14.04 binaries provided by llvm.org
- http://llvm.org/releases/download.html#3.5.0
libqtcore4:
Installed: 4:4.8.5+git192-g085f851+dfsg-2ubuntu4
Candidate: 4:4.8.5+git192-g085f851+dfsg-2ubuntu4
Version table:
*** 4:4.8.5+git192-g085f851+dfsg-2ubuntu4 0
500 http://us.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
100 /var/lib/dpkg/status
Description: Ubuntu 14.04.1 LTS
Release: 14.04
** Affects: qt4-x11 (Ubuntu)
Importance: Undecided
Status: New
** Package changed: apport (Ubuntu) => qt4-x11 (Ubuntu)
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1406901
Title:
MemorySanitizer reports warning for each application linked against Qt
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/qt4-x11/+bug/1406901/+subscriptions
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
