On 4/10/19 11:49 PM, Daniel Henrique Barboza wrote:
Commit f1d6585300 ("domain_conf: check device address before attach")
added an address verification for all devices, avoiding calling
the driver attach() for a case in which we know that the device
would have duplicated address.
That commit failed to contemplate the case of CDROM/Floppy devices
that can change and eject media using attach-device, an usage
that is also covered by this command. This patch adds an
extra condition for the added address verification code,
allowing CDROM/Floppy devices to bypass it.
Fixes: f1d6585300001c7b23b8796a0faa4411c3531996
Reported-by: Jim Fehlig <jfehlig@xxxxxxxx>
Signed-off-by: Daniel Henrique Barboza <danielhb413@xxxxxxxxx>
---
src/conf/domain_conf.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index b6be1e730d..f65a335d86 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -28597,6 +28597,7 @@ virDomainDefCompatibleDevice(virDomainDefPtr def,
if (action == VIR_DOMAIN_DEVICE_ACTION_ATTACH &&
data.newInfo &&
data.newInfo->type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE &&
+ !virDomainDiskIsCdromOrFloppy(dev->data.disk) &&
This is unsafe. You can't access dev->data.* unless you check dev->type
because @data is a union.
I'm testing a different approach. Will post patches shortly.
Michal
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