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[PATCH] virtio-blk: Fix potential nullpointer read access in virtio_blk_
From: |
Stefan Weil |
Subject: |
[PATCH] virtio-blk: Fix potential nullpointer read access in virtio_blk_data_plane_destroy |
Date: |
Sun, 24 Dec 2023 12:43:14 +0100 |
Fixes: CID 1532828
Fixes: b6948ab01d ("virtio-blk: add iothread-vq-mapping parameter")
Signed-off-by: Stefan Weil <sw@weilnetz.de>
---
hw/block/dataplane/virtio-blk.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/hw/block/dataplane/virtio-blk.c b/hw/block/dataplane/virtio-blk.c
index 6debd4401e..97a302cf49 100644
--- a/hw/block/dataplane/virtio-blk.c
+++ b/hw/block/dataplane/virtio-blk.c
@@ -152,7 +152,7 @@ bool virtio_blk_data_plane_create(VirtIODevice *vdev,
VirtIOBlkConf *conf,
void virtio_blk_data_plane_destroy(VirtIOBlockDataPlane *s)
{
VirtIOBlock *vblk;
- VirtIOBlkConf *conf = s->conf;
+ VirtIOBlkConf *conf;
if (!s) {
return;
@@ -160,6 +160,7 @@ void virtio_blk_data_plane_destroy(VirtIOBlockDataPlane *s)
vblk = VIRTIO_BLK(s->vdev);
assert(!vblk->dataplane_started);
+ conf = s->conf;
if (conf->iothread_vq_mapping_list) {
IOThreadVirtQueueMappingList *node;
--
2.39.2
- [PATCH] virtio-blk: Fix potential nullpointer read access in virtio_blk_data_plane_destroy,
Stefan Weil <=