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From e6623828b4e41fab3df1593a670341a55b3f6a71 Mon Sep 17 00:00:00 2001
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Message-Id: <e6623828b4e41fab3df1593a670341a55b3f6a71@dist-git>
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From: John Ferlan <jferlan@redhat.com>
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Date: Tue, 29 Jan 2019 19:01:51 -0500
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Subject: [PATCH] qemu: Fix crash trying to use iSCSI hostdev
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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https://bugzilla.redhat.com/show_bug.cgi?id=1669586 (RHEL7)
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https://bugzilla.redhat.com/show_bug.cgi?id=1669424 (RHEL8)
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RHEL-only
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Commit 2878c0c7b moved the qemuIsSharedHostdev filter in the
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HOSTDEV half of the logic to allow calling qemuGetHostdevPath;
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however, that neglected to check whether the SCSI hostdev was
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using the iSCSI protocol which has a different overlayed struct
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format (u.iscsi vs. u.host) resulting in attempted access of
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u.host when calling virSCSIDeviceGetDevName.
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Signed-off-by: John Ferlan <jferlan@redhat.com>
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Message-Id: <20190130000151.4479-4-jferlan@redhat.com>
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Reviewed-by: Ján Tomko <jtomko@redhat.com>
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---
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src/qemu/qemu_conf.c | 4 ++++
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1 file changed, 4 insertions(+)
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diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c
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index 768e9d8308..a81298326f 100644
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--- a/src/qemu/qemu_conf.c
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+++ b/src/qemu/qemu_conf.c
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@@ -1667,6 +1667,10 @@ qemuSetUnprivSGIO(virDomainDeviceDefPtr dev)
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} else if (dev->type == VIR_DOMAIN_DEVICE_HOSTDEV) {
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hostdev = dev->data.hostdev;
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+ if (hostdev->source.subsys.u.scsi.protocol ==
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+ VIR_DOMAIN_HOSTDEV_SCSI_PROTOCOL_TYPE_ISCSI)
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+ return 0;
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+
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if (!(hostdev_path = qemuGetHostdevPath(hostdev)))
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goto cleanup;
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--
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2.21.0
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