Package: libmagick++-6.q16-5v5 Version: 8:6.8.9.9-7.2 Severity: important File: libmagick++ Tags: patch
Dear Maintainer, There is a bug in the locking implentation (RAII was the intended C++ idiom) that has been fixed upstream. http://git.imagemagick.org/repos/ImageMagick/commit/5cbe21ed2728da0e611154d2f8e41bb63095a62c Unfortunately, the commit message is empty... In the unfixed code, the mutex acquisition has no effect and doesn't prevent concurrent access to ref counters. This bug generates a lot of crashes when Magick++ is used with multi-threaded applications -- System Information: Debian Release: stretch/sid APT prefers testing APT policy: (990, 'testing'), (500, 'stable-updates'), (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 4.6.0-1-amd64 (SMP w/2 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=UTF-8 (charmap=locale: Cannot set LC_CTYPE to default locale: No such file or directory locale: Cannot set LC_ALL to default locale: No such file or directory ANSI_X3.4-1968) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages libmagick++-6.q16-5v5:amd64 depends on: ii libc6 2.23-4 ii libgcc1 1:6.1.1-10 ii libmagickcore-6.q16-2 8:6.8.9.9-7.2 ii libmagickwand-6.q16-2 8:6.8.9.9-7.2 ii libstdc++6 6.1.1-10 libmagick++-6.q16-5v5:amd64 recommends no packages. libmagick++-6.q16-5v5:amd64 suggests no packages.
