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From 62d0406b726b0d62cb136924e7dce2a2fd364ec6 Mon Sep 17 00:00:00 2001
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Message-Id: <62d0406b726b0d62cb136924e7dce2a2fd364ec6@dist-git>
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From: Peter Krempa <pkrempa@redhat.com>
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Date: Tue, 3 Jul 2018 16:48:38 +0200
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Subject: [PATCH] qemu: hotplug: Don't access srcPriv when it's not allocated
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The private data of a virStorageSource which is backing an iSCSI hostdev
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may be NULL if no authentication is present. The code handling the
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hotplug would attempt to extract the authentication info stored in
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'secinfo' without checking if it is allocated which resulted in a crash.
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Here we opt the easy way to check if srcPriv is not NULL so that we
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don't duplicate all the logic which selects whether the disk source has
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a secret.
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Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1597550
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Signed-off-by: Peter Krempa <pkrempa@redhat.com>
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Reviewed-by: John Ferlan <jferlan@redhat.com>
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(cherry picked from commit 33a475056fdd76c030528982e422bae79c0a0e4a)
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Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
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---
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src/qemu/qemu_hotplug.c | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c
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index fcd8eb0ffa..075f2fb72e 100644
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--- a/src/qemu/qemu_hotplug.c
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+++ b/src/qemu/qemu_hotplug.c
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@@ -2240,7 +2240,8 @@ qemuDomainAttachHostSCSIDevice(virQEMUDriverPtr driver,
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if (scsisrc->protocol == VIR_DOMAIN_HOSTDEV_SCSI_PROTOCOL_TYPE_ISCSI) {
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qemuDomainStorageSourcePrivatePtr srcPriv =
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QEMU_DOMAIN_STORAGE_SOURCE_PRIVATE(scsisrc->u.iscsi.src);
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- secinfo = srcPriv->secinfo;
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+ if (srcPriv)
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+ secinfo = srcPriv->secinfo;
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}
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if (secinfo && secinfo->type == VIR_DOMAIN_SECRET_INFO_TYPE_AES) {
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--
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2.18.0
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