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Fix the null pointer access when UUID is not specified. Introduce a bool 'uuidUsable' to virStoragePoolAuthCephx that indicates if uuid was specified or not and use it instead of the pointless comparison of the static UUID array to NULL. Add an error message if both uuid and usage are specified. Fixes: Error: FORWARD_NULL (CWE-476): libvirt-0.10.2/src/conf/storage_conf.c:461: var_deref_model: Passing null pointer "uuid" to function "virUUIDParse(char const *, unsigned char *)", which dereferences it. (The dereference is assumed on the basis of the 'nonnull' parameter attribute.) Error: NO_EFFECT (CWE-398): libvirt-0.10.2/src/conf/storage_conf.c:979: array_null: Comparing an array to null is not useful: "src->auth.cephx.secret.uuid != NULL".
LibVirt : simple API for virtualization Libvirt is a C toolkit to interact with the virtualization capabilities of recent versions of Linux (and other OSes). It is free software available under the GNU Lesser General Public License. Virtualization of the Linux Operating System means the ability to run multiple instances of Operating Systems concurrently on a single hardware system where the basic resources are driven by a Linux instance. The library aim at providing long term stable C API initially for the Xen paravirtualization but should be able to integrate other virtualization mechanisms if needed. Daniel Veillard <veillard@redhat.com>
Description
Libvirt provides a portable, long term stable C API for managing the
virtualization technologies provided by many operating systems. It
includes support for QEMU, KVM, Xen, LXC, bhyve, Virtuozzo, VMware
vCenter and ESX, VMware Desktop, Hyper-V, VirtualBox and the POWER
Hypervisor.
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