Commit df0bfe75 authored Mar 12, 2019 by YueHaibing Committed by Michael S. Tsirkin May 12, 2019

virtio_ring: Fix potential mem leak in virtqueue_add_indirect_packed



'desc' should be freed before leaving from err handing path.

Fixes: 1ce9e605 ("virtio_ring: introduce packed ring support")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
stable@vger.kernel.org

parent e93c9c99

drivers/virtio/virtio_ring.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -1004,6 +1004,7 @@ static int virtqueue_add_indirect_packed(struct vring_virtqueue *vq,

		if (unlikely(vq->vq.num_free < 1)) {
		pr_debug("Can't add buf len 1 - avail = 0\n");
		kfree(desc);
		END_USE(vq);
		return -ENOSPC;
		}

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