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[PULL 01/21] vdpa: Skip the maps not in the iova tree
From: |
Jason Wang |
Subject: |
[PULL 01/21] vdpa: Skip the maps not in the iova tree |
Date: |
Fri, 2 Sep 2022 14:41:18 +0800 |
From: Eugenio Pérez <eperezma@redhat.com>
Next patch will skip the registering of dma maps that the vdpa device
rejects in the iova tree. We need to consider that here or we cause a
SIGSEGV accessing result.
Reported-by: Lei Yang <leiyang@redhat.com>
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
---
hw/virtio/vhost-vdpa.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c
index 3ff9ce3..983d369 100644
--- a/hw/virtio/vhost-vdpa.c
+++ b/hw/virtio/vhost-vdpa.c
@@ -289,6 +289,10 @@ static void vhost_vdpa_listener_region_del(MemoryListener
*listener,
};
result = vhost_iova_tree_find_iova(v->iova_tree, &mem_region);
+ if (!result) {
+ /* The memory listener map wasn't mapped */
+ return;
+ }
iova = result->iova;
vhost_iova_tree_remove(v->iova_tree, result);
}
--
2.7.4
- [PULL 00/21] Net patches, Jason Wang, 2022/09/02
- [PULL 01/21] vdpa: Skip the maps not in the iova tree,
Jason Wang <=
- [PULL 03/21] util: accept iova_tree_remove_parameter by value, Jason Wang, 2022/09/02
- [PULL 02/21] vdpa: do not save failed dma maps in SVQ iova tree, Jason Wang, 2022/09/02
- [PULL 05/21] vdpa: Make SVQ vring unmapping return void, Jason Wang, 2022/09/02
- [PULL 06/21] vhost: Always store new kick fd on vhost_svq_set_svq_kick_fd, Jason Wang, 2022/09/02
- [PULL 07/21] vdpa: Use ring hwaddr at vhost_vdpa_svq_unmap_ring, Jason Wang, 2022/09/02
- [PULL 08/21] vhost: stop transfer elem ownership in vhost_handle_guest_kick, Jason Wang, 2022/09/02
- [PULL 10/21] vhost: Delete useless read memory barrier, Jason Wang, 2022/09/02
- [PULL 12/21] vhost_net: Add NetClientInfo start callback, Jason Wang, 2022/09/02
- [PULL 09/21] vhost: use SVQ element ndescs instead of opaque data for desc validation, Jason Wang, 2022/09/02
- [PULL 11/21] vhost: Do not depend on !NULL VirtQueueElement on vhost_svq_flush, Jason Wang, 2022/09/02