[Webkit-unassigned] [Bug 20522] New: Memory leak in WebCore::PluginPackage class

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=20522

           Summary: Memory leak in WebCore::PluginPackage class
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Plug-ins
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: Kelemen.Balazs.3 at stud.u-szeged.hu


I found a leak with valgrind when running QtLauncher when loading pages that
require plugins.
The m_module member of WebCore::PluginPackage class is not freed.
I took a look at the code and realized that this member must be freed with
a delay through the freeLibrarySoon method that is called by the destructor.
I debugged QtLauncher and discovered that this member is not freed anyway.
The destructor runs many times but the unloadModule function that
should free the member had never been reached. I tested it though loading
pages like youtube and "http://szotar.sztaki.hu/index.hu.jhtml" in
QtLauncher when it was run under gdb (these pages require flash, mplayer and
java plugins). Then I load simple html pages and local files but the
member had been still unfreed. I use the Qt port of Webkit under linux.


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