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qemu: Fix segmentation fault when attaching a non iSCSI host device

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Add a check if it's a iSCSI hostdev and if it's not then don't use the
union member 'iscsi'. The segmentation fault occured when accessing
secinfo->type, but this can vary from case to case.

Signed-off-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Reviewed-by: Bjoern Walk <bwalk@linux.vnet.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
This commit is contained in:
Marc Hartmayer 2018-01-17 13:26:08 +01:00 committed by John Ferlan
parent 2efd35a307
commit 97202988d9
1 changed files with 5 additions and 4 deletions
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9
src/qemu/qemu_hotplug.c
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@ -2343,8 +2343,6 @@ qemuDomainAttachHostSCSIDevice(virConnectPtr conn,
bool secobjAdded = false;
virJSONValuePtr secobjProps = NULL;
virDomainHostdevSubsysSCSIPtr scsisrc = &hostdev->source.subsys.u.scsi;
virDomainHostdevSubsysSCSIiSCSIPtr iscsisrc = &scsisrc->u.iscsi;
qemuDomainStorageSourcePrivatePtr srcPriv;
qemuDomainSecretInfoPtr secinfo = NULL;
if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_DEVICE_SCSI_GENERIC)) {
@ -2386,9 +2384,12 @@ qemuDomainAttachHostSCSIDevice(virConnectPtr conn,
if (qemuDomainSecretHostdevPrepare(conn, priv, hostdev) < 0)
goto cleanup;
srcPriv = QEMU_DOMAIN_STORAGE_SOURCE_PRIVATE(iscsisrc->src);
if (srcPriv)
if (scsisrc->protocol == VIR_DOMAIN_HOSTDEV_SCSI_PROTOCOL_TYPE_ISCSI) {
qemuDomainStorageSourcePrivatePtr srcPriv =
QEMU_DOMAIN_STORAGE_SOURCE_PRIVATE(scsisrc->u.iscsi.src);
secinfo = srcPriv->secinfo;
}
if (secinfo && secinfo->type == VIR_DOMAIN_SECRET_INFO_TYPE_AES) {
if (qemuBuildSecretInfoProps(secinfo, &secobjProps) < 0)
goto cleanup;