[Bugs] [Bug 1235904] fgetxattr() crashes when key name is NULL

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1235904



--- Comment #2 from Anand Avati <aavati at redhat.com> ---
COMMIT: http://review.gluster.org/11213 committed in release-3.7 by Raghavendra
Bhat (raghavendra at redhat.com) 
------
commit 1da4ba883721e1613c4a0685e0fdd177a55eb07e
Author: Prashanth Pai <ppai at redhat.com>
Date:   Sun Jun 14 16:40:58 2015 +0530

    posix: Fix fgetxattr() crash when key name is NULL

    This is used to get the size of xattr list (to later allocate buffer):
    glfs_flistxattr(glfd, NULL, 0);

    glfs_flistxattr() internally has the following call:
    syncop_fgetxattr (subvol, fd, &xattr, NULL, NULL, NULL);

    strncmp() segfaults as name is NULL in posix_fgetxattr()

    Turns out this was a coverity fix in master branch that was not
    backported to 3.7.x tree.
    http://review.gluster.org/#/c/10252/

    BUG: 1235904
    Change-Id: I2ec4715f1ea2f0e9c5314b2dc358bc01ad7b7d45
    Signed-off-by: Prashanth Pai <ppai at redhat.com>
    Reviewed-on: http://review.gluster.org/11213
    Reviewed-by: Raghavendra Talur <rtalur at redhat.com>
    Tested-by: Gluster Build System <jenkins at build.gluster.com>
    Reviewed-by: Raghavendra Bhat <raghavendra at redhat.com>

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