From 2df6849d78f10cd47df9bc2a938583d933cb9e69 Mon Sep 17 00:00:00 2001 From: Michal Privoznik Date: Mon, 23 May 2022 17:17:02 +0200 Subject: [PATCH] qemu_hotplug: Deny changing @rss and @rss_hash_report attributes of virtio vNICs We have virDomainUpdateDeviceFlags() API that allows changing of some attributes of a device whilst domain is still running (e.g. setting different QoS, link state change on vNICs). But only very limited set of attributes can be changed and we have to check whether user isn't trying to sneak in a change that's not allowed. Well, in case of a virtio vNIC we forgot to check for @rss and @rss_hash_report attributes of . Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2082540 Signed-off-by: Michal Privoznik Reviewed-by: Laine Stump --- src/qemu/qemu_hotplug.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c index 24df66cc9f..f795568299 100644 --- a/src/qemu/qemu_hotplug.c +++ b/src/qemu/qemu_hotplug.c @@ -3662,7 +3662,9 @@ qemuDomainChangeNet(virQEMUDriver *driver, olddev->driver.virtio.guest.tso4 != newdev->driver.virtio.guest.tso4 || olddev->driver.virtio.guest.tso6 != newdev->driver.virtio.guest.tso6 || olddev->driver.virtio.guest.ecn != newdev->driver.virtio.guest.ecn || - olddev->driver.virtio.guest.ufo != newdev->driver.virtio.guest.ufo)) { + olddev->driver.virtio.guest.ufo != newdev->driver.virtio.guest.ufo || + olddev->driver.virtio.rss != newdev->driver.virtio.rss || + olddev->driver.virtio.rss_hash_report != newdev->driver.virtio.rss_hash_report)) { virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s", _("cannot modify virtio network device driver attributes")); goto cleanup;