[PATCH v2 2/2] vhost: fix uninitialized VQ info in VDUSE vring setup

Maxime Coquelin maxime.coquelin at redhat.com
Tue Sep 16 11:35:50 CEST 2025


Initialize vduse_vq_info structure to zero to avoid using
uninitialized memory when setting up VDUSE virtual rings.
This ensures all fields start with known values.

Fixes: a9120db8b98b ("vhost: add VDUSE device startup")
Cc: stable at dpdk.org

Reported-by: David Marchand <david.marchand at redhat.com>
Signed-off-by: Maxime Coquelin <maxime.coquelin at redhat.com>
---
 lib/vhost/vduse.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/vhost/vduse.c b/lib/vhost/vduse.c
index 422c4ab8f3..6f286c2963 100644
--- a/lib/vhost/vduse.c
+++ b/lib/vhost/vduse.c
@@ -141,7 +141,7 @@ vduse_vring_setup(struct virtio_net *dev, unsigned int index, bool reconnect)
 {
 	struct vhost_virtqueue *vq = dev->virtqueue[index];
 	struct vhost_vring_addr *ra = &vq->ring_addrs;
-	struct vduse_vq_info vq_info;
+	struct vduse_vq_info vq_info = { 0 };
 	struct vduse_vq_eventfd vq_efd;
 	int ret;
 
-- 
2.51.0



More information about the stable mailing list