[Bugs] [Bug 1370931] New: glfs_realpath() should not return malloc()' d allocated memory

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1370931

            Bug ID: 1370931
           Summary: glfs_realpath() should not return malloc()'d allocated
                    memory
           Product: GlusterFS
           Version: mainline
         Component: libgfapi
          Keywords: Triaged
          Severity: medium
          Assignee: ndevos at redhat.com
          Reporter: ndevos at redhat.com
        QA Contact: sdharane at redhat.com
                CC: bugs at gluster.org, srangana at redhat.com
        Depends On: 1344714



Description of problem:
Very similar to how upcall events are allocated by gfapi and returned to the
applications, glfs_realpath() uses malloc(). 

Version-Release number of selected component (if applicable):
all

How reproducible:
Compile an application that calls glfs_realpath() and have the function
allocate the memory on behalf of the application. If the application uses a
different memory allocated (i.e. jemalloc), free() will not work correctly and
can cause segfaults.

Additional info:
See http://review.gluster.org/14701 for a more complete description.


Referenced Bugs:

https://bugzilla.redhat.com/show_bug.cgi?id=1344714
[Bug 1344714] removal of file from nfs mount crashs ganesha server
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