[PATCH] Fix libvirtd crash in qemuDomainGetTLSObjects

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Passing a NULL value for the argument secAlias to the function
qemuDomainGetTLSObjects causes a segmentation fault.

Thread 3 "libvirtd" received signal SIGSEGV, Segmentation fault.
0x00007f97c9c42a3d in qemuDomainGetTLSObjects (...,secAlias=0x0)
at qemu/qemu_hotplug.c:1736

Changed code to not dereference a NULL secAlias.

Signed-off-by: Ashish Mittal <ashmit602@xxxxxxxxx>
---
 src/qemu/qemu_hotplug.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c
index 7dd6e5f..df58ecc 100644
--- a/src/qemu/qemu_hotplug.c
+++ b/src/qemu/qemu_hotplug.c
@@ -1643,7 +1643,8 @@ qemuDomainGetTLSObjects(virQEMUCapsPtr qemuCaps,
     }
 
     if (qemuBuildTLSx509BackendProps(tlsCertdir, tlsListen, tlsVerify,
-                                     *secAlias, qemuCaps, tlsProps) < 0)
+                                     **secAlias ? *secAlias : NULL, qemuCaps,
+                                     tlsProps) < 0)
         return -1;
 
     if (!(*tlsAlias = qemuAliasTLSObjFromSrcAlias(srcAlias)))
-- 
2.5.5

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