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This request was resolved in Red Hat Enterprise Linux 7.0.
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Two patches fixed the memory leak in calling rxfilter_notify(), we need to backport them. =============================================================== commit 96e35046e4a97df5b4e1e24e217eb1e1701c7c71 Author: Amos Kong <akong> Date: Mon Nov 18 23:32:17 2013 +0800 virtio-net: fix the memory leak in rxfilter_notify() object_get_canonical_path() returns a gchar*, it should be freed by the caller. Signed-off-by: Amos Kong <akong> Reviewed-by: Michael S. Tsirkin <mst> Reviewed-by: Vlad Yasevich <vyasevic> Reviewed-by: Andreas Färber <afaerber> Signed-off-by: Stefan Hajnoczi <stefanha> diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c index 613f144..b75c753 100644 --- a/hw/net/virtio-net.c +++ b/hw/net/virtio-net.c @@ -200,16 +200,16 @@ static void rxfilter_notify(NetClientState *nc) VirtIONet *n = qemu_get_nic_opaque(nc); if (nc->rxfilter_notify_enabled) { + gchar *path = object_get_canonical_path(OBJECT(n->qdev)); if (n->netclient_name) { event_data = qobject_from_jsonf("{ 'name': %s, 'path': %s }", - n->netclient_name, - object_get_canonical_path(OBJECT(n->qdev))); + n->netclient_name, path); } else { - event_data = qobject_from_jsonf("{ 'path': %s }", - object_get_canonical_path(OBJECT(n->qdev))); + event_data = qobject_from_jsonf("{ 'path': %s }", path); } monitor_protocol_event(QEVENT_NIC_RX_FILTER_CHANGED, event_data); qobject_decref(event_data); + g_free(path); /* disable event notification to avoid events flooding */ nc->rxfilter_notify_enabled = 0; =============================================================== commit 2d3aa28cc2cf382aa04cd577e0be542175eea9bd Author: Vlad Yasevich <vyasevic> Date: Fri Nov 15 12:09:47 2013 -0500 qom: Fix memory leak in object_property_set_link() Save the result of the call to object_get_canonical_path() so we can free it. Cc: qemu-stable Signed-off-by: Vlad Yasevich <vyasevic> Reviewed-by: Amos Kong <akong> Reviewed-by: Stefan Hajnoczi <stefanha> Signed-off-by: Andreas Färber <afaerber> diff --git a/qom/object.c b/qom/object.c index b617f26..fc19cf6 100644 --- a/qom/object.c +++ b/qom/object.c @@ -838,8 +838,9 @@ char *object_property_get_str(Object *obj, const char *name, void object_property_set_link(Object *obj, Object *value, const char *name, Error **errp) { - object_property_set_str(obj, object_get_canonical_path(value), - name, errp); + gchar *path = object_get_canonical_path(value); + object_property_set_str(obj, path, name, errp); + g_free(path); } Object *object_property_get_link(Object *obj, const char *name,